:root {
  --ink: #171c36;
  --ink-2: #242b4d;
  --board: #16443d;
  --board-soft: #1f5a50;
  --paper: #f4efe4;
  --paper-bright: #fffdf7;
  --blue: #555cff;
  --blue-dark: #3238d8;
  --lime: #dcff70;
  --coral: #ff715f;
  --sky: #b8def8;
  --pencil: #f3c850;
  --muted: #656978;
  --line: rgba(23, 28, 54, .19);
  --radius: 20px;
  --shadow: 7px 7px 0 var(--ink);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; -webkit-font-smoothing: antialiased; }
body::selection { background: var(--lime); color: var(--ink); }
a { color: inherit; }
button, input, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
img, svg { max-width: 100%; }
.shell { width: min(1180px, calc(100% - 48px)); margin-inline: auto; }
.narrow-shell { width: min(1030px, calc(100% - 48px)); margin-inline: auto; }
.skip-link { position: fixed; z-index: 1000; top: 10px; left: 10px; transform: translateY(-150%); padding: 12px 16px; background: var(--lime); border: 2px solid var(--ink); font-weight: 800; }
.skip-link:focus { transform: translateY(0); }

.site-header { position: relative; z-index: 50; border-bottom: 1px solid var(--line); background: rgba(255, 253, 247, .96); }
.nav-wrap { min-height: 82px; display: flex; align-items: center; justify-content: space-between; gap: 35px; }
.brand { display: flex; align-items: center; gap: 13px; text-decoration: none; }
.brand-board { width: 46px; height: 43px; display: grid; grid-template-columns: 1fr 1fr; place-items: center; background: var(--board); color: var(--lime); border: 2px solid var(--ink); box-shadow: 3px 3px 0 var(--ink); transform: rotate(-2deg); }
.brand-board i { font-family: Georgia, serif; font-style: normal; font-size: 20px; }
.brand-board i + i { color: var(--paper-bright); }
.brand-copy { display: grid; gap: 2px; }
.brand-copy strong { font: 800 18px/1.05 Georgia, serif; }
.brand-copy small { font-size: 8px; font-weight: 850; letter-spacing: .12em; text-transform: uppercase; }
nav { display: flex; align-items: center; gap: 29px; }
nav > a { font-size: 12px; font-weight: 780; text-decoration: none; }
.nav-cta { padding: 12px 17px; color: white; background: var(--blue); border: 1.5px solid var(--ink); border-radius: 9px; box-shadow: 3px 3px 0 var(--ink); }
.nav-cta:hover { transform: translate(-1px, -1px); box-shadow: 5px 5px 0 var(--ink); }

.message-stack { position: relative; z-index: 40; }
.message { margin-top: 15px; padding: 14px 18px; border: 1.5px solid var(--ink); border-radius: 12px; background: var(--lime); box-shadow: 3px 3px 0 var(--ink); font-size: 13px; font-weight: 750; }
.message.error { background: #ffd4ce; }

.button { min-height: 50px; display: inline-flex; align-items: center; justify-content: center; gap: 20px; padding: 14px 19px; border: 1.5px solid var(--ink); border-radius: 10px; box-shadow: 4px 4px 0 var(--ink); font-size: 12px; font-weight: 880; letter-spacing: .02em; text-decoration: none; cursor: pointer; transition: transform .15s ease, box-shadow .15s ease; }
.button:hover { transform: translate(-2px, -2px); box-shadow: 7px 7px 0 var(--ink); }
.button:active { transform: translate(2px, 2px); box-shadow: 1px 1px 0 var(--ink); }
.button:disabled { opacity: .45; cursor: not-allowed; }
.button-lime { background: var(--lime); color: var(--ink); }
.button-dark { background: var(--ink); color: white; box-shadow: 4px 4px 0 var(--blue); }
.button-blue { background: var(--blue); color: white; }
.button-coral { background: var(--coral); color: var(--ink); }
.button-outline { background: transparent; color: var(--ink); }
.button-row { display: flex; align-items: center; gap: 27px; margin-top: 35px; }
.text-link { display: inline-flex; align-items: center; gap: 8px; font-size: 12px; font-weight: 850; text-underline-offset: 4px; }
.light-link { color: white; }
.full-button, .form-submit { width: 100%; }
.eyebrow { display: inline-block; font-size: 10px; font-weight: 900; letter-spacing: .14em; text-transform: uppercase; }
.eyebrow.blue { color: var(--blue); }.eyebrow.lime { color: var(--lime); }.eyebrow.coral { color: var(--coral); }

.classroom-hero { overflow: hidden; color: white; background: var(--ink); }
.hero-grid { min-height: 690px; display: grid; grid-template-columns: .94fr 1.06fr; gap: 65px; align-items: center; padding-block: 70px 54px; }
.chalk-label { display: inline-flex; align-items: center; gap: 9px; color: var(--lime); font: 800 9px/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .11em; text-transform: uppercase; }
.chalk-label > span { width: 22px; border-top: 2px solid currentColor; transform: rotate(-5deg); }
.hero h1, .page-hero h1, .lesson-board-header h1, .challenge-hero h1 { margin: 23px 0 24px; font: 500 clamp(55px, 6.1vw, 86px)/.91 Georgia, "Times New Roman", serif; letter-spacing: -.053em; }
.hero h1 em, .page-hero h1 em { color: var(--lime); font-weight: inherit; }
.hero-lead { max-width: 590px; margin: 0; color: rgba(255,255,255,.78); font-size: 17px; line-height: 1.65; }
.hero-note { display: flex; gap: 12px; align-items: center; max-width: 510px; margin-top: 34px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.18); }
.hero-note > span { width: 34px; height: 34px; display: grid; place-items: center; flex: 0 0 auto; color: var(--ink); background: var(--pencil); border-radius: 50%; }
.hero-note p { margin: 0; font-size: 11px; line-height: 1.5; color: rgba(255,255,255,.66); }
.hero-note strong { color: white; }

.classroom-scene { position: relative; min-height: 515px; }
.board-frame { position: absolute; inset: 25px 5px 70px 30px; padding: 12px; background: #bd8950; border: 2px solid #080b18; border-radius: 8px; box-shadow: 15px 18px 0 rgba(0,0,0,.24); transform: rotate(1.2deg); }
.board-topline { height: 32px; display: flex; align-items: center; gap: 6px; padding-inline: 10px; color: var(--ink); background: #dfad6f; font: 900 7px/1 ui-monospace, monospace; letter-spacing: .11em; }
.board-topline span { margin-right: auto; }.board-topline i { width: 7px; height: 7px; border: 1px solid var(--ink); border-radius: 50%; background: var(--coral); }.board-topline i:nth-child(3) { background: var(--lime); }.board-topline i:nth-child(4) { background: var(--sky); }
.chalk-motion-control { min-height: 22px; padding: 4px 7px; color: var(--ink); background: rgba(255,253,247,.62); border: 1px solid currentColor; font: 900 7px/1 ui-monospace, monospace; letter-spacing: .04em; text-transform: uppercase; cursor: pointer; }
.chalk-motion-control:hover, .chalk-motion-control:focus-visible { background: var(--lime); }.chalk-motion-control:disabled { opacity: .58; cursor: wait; }
.chalk-board { --chalk-line-one-x: 180px; --chalk-line-two-x: 208px; --chalk-line-gap: 53px; position: relative; height: calc(100% - 32px); overflow: hidden; padding: 40px 44px 48px; color: #f8f3df; background: var(--board); border: 5px solid #0e302a; box-shadow: inset 0 0 55px rgba(0,0,0,.24); }
.chalk-board::before { content: ""; position: absolute; inset: 0; opacity: .18; background: repeating-linear-gradient(7deg, transparent 0 13px, rgba(255,255,255,.04) 14px 15px); }
.chalk-date { font: 700 8px/1 ui-monospace, monospace; letter-spacing: .15em; opacity: .72; }
.chalk-hand-note { position: absolute; z-index: 2; top: 35px; right: 124px; color: rgba(248,243,223,.78); opacity: 0; font: 500 18px/1 "Segoe Print", "Bradley Hand", Georgia, cursive; transform: translateY(6px) rotate(3deg); }
.chalk-writing { position: relative; z-index: 2; width: max-content; margin-top: 22px; transform: rotate(-1deg); }
.chalk-script { display: block; width: max-content; color: #faf5df; font: 600 55px/.93 "Segoe Print", "Bradley Hand", Georgia, cursive; letter-spacing: -.035em; clip-path: none; text-shadow: 1px 0 rgba(255,255,255,.3), -1px 1px rgba(255,255,255,.12), 0 2px rgba(10,42,36,.55); }
.chalk-letter { display: inline-block; opacity: 0; clip-path: inset(0 100% 0 0); }
.chalk-stick { position: absolute; z-index: 5; top: 27px; left: 2px; width: 24px; height: 7px; border: 1px solid rgba(23,28,54,.32); border-radius: 2px 5px 5px 2px; background: linear-gradient(180deg, #fffdf0 0 42%, #d8cfb2 100%); box-shadow: 7px 3px 12px rgba(255,255,255,.22); opacity: 0; transform-origin: right center; }
.chalk-stick::before { content: ""; position: absolute; top: 1px; right: -4px; width: 5px; height: 5px; background: #fffdf0; clip-path: polygon(0 0, 100% 50%, 0 100%); filter: drop-shadow(3px 0 3px rgba(255,255,255,.5)); }
.chalk-stick::after { content: ""; position: absolute; top: -1px; left: 4px; width: 5px; height: 7px; border-inline: 1px solid rgba(23,28,54,.32); background: rgba(85,92,255,.34); }
.chalk-writing::after { content: ""; position: absolute; z-index: 1; right: -25px; bottom: 2px; width: 55px; height: 35px; opacity: 0; background: radial-gradient(circle, rgba(255,255,255,.48) 0 1px, transparent 2px) 0 0 / 9px 9px; }
.chalk-flow { position: relative; z-index: 2; display: flex; align-items: center; gap: 13px; margin-top: 25px; opacity: 0; transform: translateY(6px); font: 800 10px/1 ui-monospace, monospace; letter-spacing: .08em; }.chalk-flow b { padding: 9px 11px; border: 1px solid rgba(255,255,255,.65); font-weight: inherit; }.chalk-flow i { color: var(--lime); font-style: normal; }
.chalk-proof { position: relative; z-index: 2; min-height: 58px; margin-top: 3px; }
.chalk-line { position: absolute; inset: 0 0 auto auto; width: 60%; overflow: visible; opacity: 0; transform: scaleX(.05); transform-origin: left center; }.chalk-line path { fill: none; stroke: var(--lime); stroke-width: 3; stroke-linecap: round; stroke-dasharray: 5 5; }
.chalk-answer { position: absolute; z-index: 3; right: 0; bottom: 0; color: var(--lime); opacity: 0; font: 600 16px/1 "Segoe Print", "Bradley Hand", Georgia, cursive; transform: translateY(6px) rotate(-4deg); }
.chalk-board.chalk-animated .chalk-hand-note { animation: chalk-note-in .45s ease-out .12s forwards; }
.chalk-board.chalk-animated .chalk-script-one,
.chalk-board.chalk-animated .chalk-script-two { animation: none; }
.chalk-board.chalk-animated .chalk-letter { animation: chalk-letter-in .25s ease-out forwards; }
.chalk-board.chalk-animated .chalk-script-one .chalk-letter:nth-child(1) { animation-delay: .55s; }
.chalk-board.chalk-animated .chalk-script-one .chalk-letter:nth-child(2) { animation-delay: .77s; }
.chalk-board.chalk-animated .chalk-script-one .chalk-letter:nth-child(3) { animation-delay: .99s; }
.chalk-board.chalk-animated .chalk-script-one .chalk-letter:nth-child(4) { animation-delay: 1.21s; }
.chalk-board.chalk-animated .chalk-script-one .chalk-letter:nth-child(5) { animation-delay: 1.43s; }
.chalk-board.chalk-animated .chalk-script-one .chalk-letter:nth-child(6) { animation-delay: 1.65s; }
.chalk-board.chalk-animated .chalk-script-one .chalk-letter:nth-child(7) { animation-delay: 1.87s; }
.chalk-board.chalk-animated .chalk-script-two .chalk-letter:nth-child(1) { animation-delay: 2.35s; }
.chalk-board.chalk-animated .chalk-script-two .chalk-letter:nth-child(2) { animation-delay: 2.54s; }
.chalk-board.chalk-animated .chalk-script-two .chalk-letter:nth-child(3) { animation-delay: 2.73s; }
.chalk-board.chalk-animated .chalk-script-two .chalk-letter:nth-child(4) { animation-delay: 2.92s; }
.chalk-board.chalk-animated .chalk-script-two .chalk-letter:nth-child(5) { animation-delay: 3.11s; }
.chalk-board.chalk-animated .chalk-script-two .chalk-letter:nth-child(6) { animation-delay: 3.30s; }
.chalk-board.chalk-animated .chalk-script-two .chalk-letter:nth-child(7) { animation-delay: 3.49s; }
.chalk-board.chalk-animated .chalk-script-two .chalk-letter:nth-child(8) { animation-delay: 3.68s; }
.chalk-board.chalk-animated .chalk-script-two .chalk-letter:nth-child(9) { animation-delay: 3.87s; }
.chalk-board.chalk-animated .chalk-stick { animation: chalk-hand 3.75s cubic-bezier(.42,0,.58,1) .5s forwards; }
.chalk-board.chalk-animated .chalk-writing::after { animation: chalk-dust .8s ease-out 3.95s forwards; }
.chalk-board.chalk-animated .chalk-flow { animation: lesson-flow-in .55s ease-out 4.2s forwards; }
.chalk-board.chalk-animated .chalk-line { animation: chalk-arrow-in 1.1s ease-out 4.65s forwards; }
.chalk-board.chalk-animated .chalk-answer { animation: chalk-answer-in .55s ease-out 5.25s forwards; }
.chalk-board.chalk-written .chalk-script { clip-path: inset(0 0 0 0); }
.chalk-board.chalk-written .chalk-letter { opacity: 1; clip-path: inset(0 0 0 0); filter: none; transform: none; }
.chalk-board.chalk-written .chalk-hand-note { opacity: 1; transform: rotate(3deg); }
.chalk-board.chalk-written .chalk-flow { opacity: 1; transform: none; }
.chalk-board.chalk-written .chalk-line { opacity: 1; transform: scaleX(1); }
.chalk-board.chalk-written .chalk-answer { opacity: 1; transform: rotate(-4deg); }
@keyframes chalk-write-in { from { clip-path: inset(0 100% 0 0); } to { clip-path: inset(0 0 0 0); } }
@keyframes chalk-hand { 0% { opacity: 0; transform: translate(0, 0) rotate(-9deg); } 3% { opacity: 1; } 41% { opacity: 1; transform: translate(var(--chalk-line-one-x), 0) rotate(2deg); } 45% { opacity: 0; transform: translate(var(--chalk-line-one-x), 0) rotate(2deg); } 49% { opacity: 0; transform: translate(0, var(--chalk-line-gap)) rotate(-8deg); } 52% { opacity: 1; } 94% { opacity: 1; transform: translate(var(--chalk-line-two-x), var(--chalk-line-gap)) rotate(2deg); } 100% { opacity: 0; transform: translate(var(--chalk-line-two-x), var(--chalk-line-gap)) rotate(2deg); } }
@keyframes chalk-dust { 0% { opacity: 0; transform: translateX(-18px) scale(.5); } 35% { opacity: .8; } 100% { opacity: 0; transform: translate(18px, -12px) scale(1.25); } }
@keyframes chalk-note-in { from { opacity: 0; transform: translateY(6px) rotate(3deg); } to { opacity: 1; transform: rotate(3deg); } }
@keyframes lesson-flow-in { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } }
@keyframes chalk-arrow-in { from { opacity: 0; transform: scaleX(.05); } to { opacity: 1; transform: scaleX(1); } }
@keyframes chalk-answer-in { from { opacity: 0; transform: translateY(6px) rotate(-4deg); } to { opacity: 1; transform: rotate(-4deg); } }
@keyframes chalk-letter-in {
  from { opacity: 0; clip-path: inset(0 100% 0 0); filter: blur(.8px); transform: translate(-2px, 1px) scale(.96); }
  55% { opacity: .85; }
  to { opacity: 1; clip-path: inset(0 0 0 0); filter: none; transform: none; }
}
@keyframes chalk-hand-desktop {
  0%, 1% { opacity: 0; transform: translate(0, 0) rotate(-9deg); }
  1.3% { opacity: 1; transform: translate(0, 0) rotate(-9deg); }
  41% { opacity: 1; transform: translate(var(--chalk-line-one-x), 0) rotate(2deg); }
  43.6% { opacity: 0; transform: translate(var(--chalk-line-one-x), 0) rotate(2deg); }
  46.2% { opacity: 0; transform: translate(0, var(--chalk-line-gap)) rotate(-8deg); }
  47.4% { opacity: 1; transform: translate(0, var(--chalk-line-gap)) rotate(-8deg); }
  92.3% { opacity: 1; transform: translate(var(--chalk-line-two-x), var(--chalk-line-gap)) rotate(2deg); }
  95%, 100% { opacity: 0; transform: translate(var(--chalk-line-two-x), var(--chalk-line-gap)) rotate(2deg); }
}
.desk-card { position: absolute; z-index: 5; width: 150px; min-height: 105px; display: grid; grid-template-columns: 38px 1fr; align-content: center; gap: 4px 10px; padding: 18px; color: var(--ink); background: var(--paper-bright); border: 1.5px solid var(--ink); box-shadow: 6px 6px 0 var(--ink); }
.desk-card span { grid-row: 1 / 3; color: var(--blue); font: 500 30px/1 Georgia, serif; }.desk-card strong { font-size: 11px; letter-spacing: .08em; }.desk-card small { font-size: 9px; opacity: .62; }
.desk-card-one { left: 0; bottom: 32px; transform: rotate(-5deg); }.desk-card-two { right: 0; bottom: 6px; background: var(--sky); transform: rotate(4deg); }
.teacher-stamp { position: absolute; z-index: 8; right: -4px; top: 6px; width: 100px; height: 100px; display: grid; place-items: center; color: var(--coral); border: 4px double var(--coral); border-radius: 50%; font: 900 9px/1.2 ui-monospace, monospace; letter-spacing: .08em; text-align: center; transform: rotate(12deg); }
.class-stats { min-height: 112px; display: grid; grid-template-columns: repeat(3, .7fr) 1.7fr; border-top: 1px solid rgba(255,255,255,.18); }
.class-stats > div { display: flex; align-items: center; gap: 12px; padding: 23px 26px; border-right: 1px solid rgba(255,255,255,.18); }.class-stats > div:first-child { padding-left: 0; }.class-stats > div:last-child { border-right: 0; }
.class-stats strong { font: 500 32px/1 Georgia, serif; }.class-stats span { max-width: 90px; font-size: 9px; font-weight: 850; line-height: 1.35; letter-spacing: .08em; text-transform: uppercase; }
.class-stats .class-rule { align-items: flex-start; justify-content: center; flex-direction: column; gap: 7px; padding-left: 35px; color: var(--ink); background: var(--lime); }.class-stats .class-rule span { max-width: none; }.class-stats .class-rule strong { font-family: inherit; font-size: 14px; font-weight: 850; }

.section { padding: 105px 0; }
.paper-section { background: var(--paper-bright); }
.split-heading, .section-heading { display: grid; grid-template-columns: 1fr .72fr; gap: 80px; align-items: end; margin-bottom: 58px; }
.section-heading h2, .split-heading h2, .challenge-copy h2, .desk-title h2, .exam-instructions h2, .truth-panel h2, .privacy-panel h2 { margin: 17px 0 0; font: 500 clamp(43px, 5vw, 67px)/.97 Georgia, serif; letter-spacing: -.045em; }
.section-heading h2 em, .split-heading h2 em, .challenge-copy h2 em { color: var(--blue); font-weight: inherit; }
.teacher-note { position: relative; padding: 27px 29px 26px 35px; background: #fff6bf; border: 1.5px solid var(--ink); box-shadow: 5px 5px 0 var(--ink); transform: rotate(1deg); }
.teacher-note::before { content: ""; position: absolute; top: -13px; left: 42px; width: 70px; height: 25px; background: rgba(255,255,255,.55); transform: rotate(-4deg); }
.teacher-note span { font: 900 9px/1 ui-monospace, monospace; letter-spacing: .1em; text-transform: uppercase; }.teacher-note p { margin: 13px 0 0; font: 500 17px/1.55 Georgia, serif; }
.principle-row { display: grid; grid-template-columns: repeat(3, 1fr); border-block: 1px solid var(--line); }
.principle-row article { min-height: 240px; padding: 35px 35px 30px 0; border-right: 1px solid var(--line); }.principle-row article:not(:first-child) { padding-left: 35px; }.principle-row article:last-child { border-right: 0; }
.number-badge { width: 38px; height: 38px; display: grid; place-items: center; color: white; background: var(--blue); border-radius: 50%; font: 800 12px/1 ui-monospace, monospace; }
.principle-row h3 { margin: 29px 0 11px; font: 500 27px/1.1 Georgia, serif; }.principle-row p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.65; }

.syllabus-section { color: white; background: var(--blue); }
.syllabus-heading > p { margin: 0; color: rgba(255,255,255,.74); font-size: 16px; line-height: 1.7; }
.syllabus-heading h2 { color: white; }.syllabus-heading h2::after { content: ""; display: inline-block; width: 70px; margin: 0 0 10px 20px; border-top: 4px solid var(--lime); transform: rotate(-4deg); }
.lesson-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 17px; }
.lesson-card { min-height: 285px; display: flex; flex-direction: column; padding: 23px; color: var(--ink); background: var(--paper-bright); border: 1.5px solid var(--ink); box-shadow: 5px 5px 0 rgba(12,15,36,.9); }
.lesson-card:nth-child(2), .lesson-card:nth-child(6) { background: var(--sky); }.lesson-card:nth-child(3), .lesson-card:nth-child(7) { background: var(--lime); }.lesson-card:nth-child(4) { background: #ffd7d1; }
.lesson-card:nth-child(5) { grid-column: 1 / 2; }.lesson-card:nth-child(7) { grid-column: 3 / 5; }
.lesson-top { display: flex; justify-content: space-between; align-items: center; font: 850 8px/1 ui-monospace, monospace; letter-spacing: .1em; }.lesson-top i { padding: 5px 7px; border: 1px solid var(--ink); border-radius: 999px; font-style: normal; }
.lesson-card h3 { margin: 35px 0 13px; font: 500 27px/1.06 Georgia, serif; }.lesson-card > p { margin: 0; color: #505367; font-size: 12px; line-height: 1.55; }
.lesson-artifact { display: grid; gap: 4px; margin-top: auto; padding-top: 20px; border-top: 1px dashed var(--line); }.lesson-artifact small { font: 800 8px/1 ui-monospace, monospace; text-transform: uppercase; }.lesson-artifact strong { font-size: 11px; }
.center-link { display: flex; justify-content: center; margin-top: 48px; }

.challenge-feature { background: var(--pencil); }
.challenge-grid { display: grid; grid-template-columns: 1.08fr .92fr; gap: 100px; align-items: center; }
.exam-card { background: var(--paper-bright); border: 2px solid var(--ink); box-shadow: 12px 12px 0 var(--ink); transform: rotate(-1.2deg); }
.exam-header { display: flex; justify-content: space-between; padding: 14px 18px; color: white; background: var(--ink); font: 800 8px/1 ui-monospace, monospace; letter-spacing: .1em; }
.exam-body { position: relative; min-height: 330px; padding: 47px; background-image: repeating-linear-gradient(0deg, transparent 0 31px, rgba(85,92,255,.12) 32px 33px); }.exam-body::before { content: ""; position: absolute; top: 0; bottom: 0; left: 28px; border-left: 1px solid rgba(255,113,95,.35); }
.exam-check { position: absolute; top: 33px; right: 38px; color: var(--coral); font: 500 60px/1 Georgia, serif; transform: rotate(9deg); }.exam-body h3 { max-width: 400px; margin: 18px 0 15px; font: 500 41px/1.03 Georgia, serif; }.exam-body > p { max-width: 450px; font-size: 13px; line-height: 1.65; }
.outcome-pills { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 28px; }.outcome-pills span { padding: 8px 10px; background: white; border: 1px solid var(--ink); border-radius: 999px; font-size: 9px; font-weight: 800; }
.challenge-copy > p { margin: 25px 0 31px; font-size: 16px; line-height: 1.7; }
.compact-heading { grid-template-columns: 1fr; max-width: 800px; }.compact-heading > p { max-width: 630px; margin: 0; color: var(--muted); line-height: 1.65; }
.notebook-list { border: 1.5px solid var(--ink); box-shadow: 8px 8px 0 var(--blue); }
.notebook-list > div { min-height: 74px; display: grid; grid-template-columns: 70px 1fr 110px; align-items: center; gap: 20px; padding: 0 25px; border-bottom: 1px solid var(--line); background: var(--paper); }.notebook-list > div:last-child { border: 0; }.notebook-list span { color: var(--blue); font: 500 27px/1 Georgia, serif; }.notebook-list strong { font: 500 21px/1.2 Georgia, serif; }.notebook-list small { font: 800 9px/1 ui-monospace, monospace; letter-spacing: .08em; text-transform: uppercase; }
.class-marquee { overflow: hidden; padding: 18px 0; color: white; background: var(--coral); border-block: 1.5px solid var(--ink); white-space: nowrap; }.class-marquee div { min-width: max-content; font: 900 10px/1 ui-monospace, monospace; letter-spacing: .11em; animation: drift 27s linear infinite; }.class-marquee span { margin-inline: 30px; color: var(--lime); }
@keyframes drift { to { transform: translateX(-35%); } }

.site-footer { padding: 90px 0 45px; color: white; background: var(--ink); }
.footer-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 110px; }
.footer-label { color: var(--lime); font-size: 9px; font-weight: 850; letter-spacing: .12em; text-transform: uppercase; }.site-footer h2 { margin: 17px 0 30px; font: 500 clamp(42px, 5vw, 65px)/.98 Georgia, serif; letter-spacing: -.045em; }
.footer-notes { padding-left: 48px; border-left: 1px solid rgba(255,255,255,.2); }.footer-notes p { margin-top: 0; font-size: 13px; line-height: 1.7; color: rgba(255,255,255,.78); }.footer-notes .fine-print { margin-top: 28px; font-size: 10px; color: rgba(255,255,255,.47); }.footer-links { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 28px; font-size: 11px; font-weight: 800; }

.page-hero { padding: 92px 0 84px; }.board-page-hero { color: white; background: var(--board); }.light-page-hero { background: var(--paper); border-bottom: 1px solid var(--line); }
.page-hero-grid { display: grid; grid-template-columns: 1fr 300px; gap: 100px; align-items: center; }.page-hero h1 { max-width: 850px; }.page-hero p { max-width: 700px; color: rgba(255,255,255,.72); font-size: 17px; line-height: 1.65; }.light-page-hero p { color: var(--muted); }
.hero-syllabus-card, .rules-poster { padding: 30px; color: var(--ink); background: var(--lime); border: 2px solid var(--ink); box-shadow: 9px 9px 0 #0c2925; transform: rotate(2deg); }.hero-syllabus-card > span, .rules-poster > span { display: block; padding-bottom: 18px; border-bottom: 1px solid var(--ink); font: 900 9px/1 ui-monospace, monospace; letter-spacing: .1em; }.hero-syllabus-card strong { display: block; padding: 13px 0; border-bottom: 1px dashed rgba(23,28,54,.4); font: 500 24px/1 Georgia, serif; }.hero-syllabus-card small { display: block; margin-top: 20px; font-size: 9px; font-weight: 850; text-transform: uppercase; }
.intro-note { display: grid; grid-template-columns: 180px 1fr; gap: 40px; margin-bottom: 70px; padding: 30px 35px; background: #fff6bf; border: 1px solid var(--ink); box-shadow: 5px 5px 0 var(--ink); }.intro-note strong { font: 500 23px/1.1 Georgia, serif; }.intro-note p { margin: 0; font-size: 14px; line-height: 1.7; }
.curriculum-row { display: grid; grid-template-columns: 120px 1fr; gap: 45px; padding: 65px 0; border-top: 1px solid var(--line); }.curriculum-row:last-child { border-bottom: 1px solid var(--line); }
.day-marker { width: 94px; height: 113px; display: grid; place-items: center; align-content: center; gap: 5px; background: var(--sky); border: 1.5px solid var(--ink); box-shadow: 5px 5px 0 var(--ink); transform: rotate(-2deg); }.curriculum-row:nth-child(even) .day-marker { background: var(--lime); transform: rotate(2deg); }.day-marker span, .day-marker small { font: 850 8px/1 ui-monospace, monospace; letter-spacing: .1em; }.day-marker strong { font: 500 45px/1 Georgia, serif; }
.curriculum-copy h2 { margin: 12px 0 17px; font: 500 45px/1 Georgia, serif; letter-spacing: -.03em; }.curriculum-copy > p { max-width: 740px; color: var(--muted); font-size: 16px; line-height: 1.75; }
.assignment-line { margin-top: 28px; padding: 24px 28px; border-left: 5px solid var(--blue); background: var(--paper); }.assignment-line span { font: 900 8px/1 ui-monospace, monospace; letter-spacing: .1em; }.assignment-line strong { display: block; margin: 8px 0; font: 500 22px/1.1 Georgia, serif; }.assignment-line p { margin: 0; font-size: 13px; line-height: 1.6; }
.enroll-panel { margin-top: 80px; padding: 55px; color: white; background: var(--ink); border-radius: var(--radius); }.enroll-panel h2 { max-width: 700px; margin: 16px 0 30px; font: 500 45px/1.02 Georgia, serif; }

.compact-hero h1 { margin-bottom: 18px; }.form-layout { display: grid; grid-template-columns: 1fr 300px; gap: 75px; align-items: start; }
.course-form, .workbook-form, .challenge-form { padding: 42px; background: var(--paper); border: 1.5px solid var(--ink); box-shadow: var(--shadow); }
.form-chapter { display: flex; align-items: center; gap: 12px; margin: 4px 0 29px; padding-bottom: 13px; border-bottom: 1px solid var(--line); }.form-chapter:not(:first-of-type) { margin-top: 48px; }.form-chapter span { width: 28px; height: 28px; display: grid; place-items: center; color: white; background: var(--blue); border-radius: 50%; font: 800 9px/1 ui-monospace, monospace; }.form-chapter strong { font: 500 21px/1 Georgia, serif; }
.field { position: relative; margin-bottom: 26px; }.field label { display: block; margin-bottom: 9px; font-size: 12px; font-weight: 850; }.field input, .field textarea { width: 100%; padding: 14px 15px; color: var(--ink); background: var(--paper-bright); border: 1.5px solid var(--ink); border-radius: 9px; outline: 0; resize: vertical; }.field textarea { min-height: 120px; line-height: 1.55; }.field input:focus, .field textarea:focus { box-shadow: 0 0 0 4px rgba(85,92,255,.2); border-color: var(--blue); }.field small { display: block; margin-top: 7px; color: var(--muted); font-size: 10px; line-height: 1.45; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }.errorlist { margin: 7px 0 0; padding: 0; color: #a12422; list-style: none; font-size: 11px; font-weight: 750; }.has-error input, .has-error textarea { border-color: #b72d29; }.form-errors { margin-bottom: 20px; padding: 14px; background: #ffd7d1; border: 1px solid #b72d29; }
.privacy-check { display: grid; grid-template-columns: 22px 1fr; gap: 11px; align-items: start; margin: 30px 0; padding: 19px; background: #eef6ff; border: 1px solid var(--ink); }.privacy-check input { width: 19px; height: 19px; accent-color: var(--blue); }.privacy-check label { display: grid; gap: 4px; font-size: 12px; }.privacy-check label span { color: var(--muted); font-size: 10px; line-height: 1.45; }.privacy-check .errorlist { grid-column: 2; }
.form-aside { position: sticky; top: 25px; }.teacher-card { padding: 28px; background: #fff6bf; border: 1.5px solid var(--ink); box-shadow: 5px 5px 0 var(--ink); transform: rotate(1deg); }.teacher-card > span { font: 900 8px/1 ui-monospace, monospace; letter-spacing: .1em; text-transform: uppercase; }.teacher-card h2, .teacher-card h3 { margin: 17px 0 13px; font: 500 30px/1.08 Georgia, serif; }.teacher-card p { margin: 0; font-size: 12px; line-height: 1.65; }
.mini-syllabus { margin: 37px 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }.mini-syllabus li { display: flex; gap: 13px; padding: 15px 0; border-bottom: 1px solid var(--line); font-size: 12px; font-weight: 800; }.mini-syllabus span { color: var(--blue); font: 800 10px/1.4 ui-monospace, monospace; }.privacy-note-small { padding: 18px; border-left: 4px solid var(--blue); background: var(--paper); font-size: 10px; line-height: 1.55; }

.studio-header { padding: 65px 0 35px; color: white; background: var(--ink); }.studio-heading { display: flex; justify-content: space-between; align-items: center; gap: 50px; }.studio-heading h1 { margin: 13px 0 7px; font: 500 clamp(48px, 6vw, 76px)/.95 Georgia, serif; }.studio-heading p { margin: 0; color: rgba(255,255,255,.68); }
.progress-dial { width: 115px; height: 115px; display: grid; place-items: center; align-content: center; flex: 0 0 auto; border-radius: 50%; background: conic-gradient(var(--lime) var(--progress), rgba(255,255,255,.15) 0); color: var(--ink); position: relative; }.progress-dial::before { content: ""; position: absolute; inset: 8px; border-radius: 50%; background: var(--paper-bright); }.progress-dial > * { position: relative; z-index: 1; }.progress-dial span { font: 500 28px/1 Georgia, serif; }.progress-dial small { margin-top: 3px; font-size: 8px; font-weight: 850; text-transform: uppercase; }
.progress-track { height: 8px; margin-top: 30px; padding: 0; background: rgba(255,255,255,.16); border-radius: 10px; overflow: hidden; }.progress-track span { display: block; height: 100%; background: var(--lime); }
.progress-0 { --progress: 0%; }.progress-1 { --progress: 14%; }.progress-2 { --progress: 29%; }.progress-3 { --progress: 43%; }.progress-4 { --progress: 57%; }.progress-5 { --progress: 71%; }.progress-6 { --progress: 86%; }.progress-7 { --progress: 100%; }
.progress-track.progress-0 span { width: 0%; }.progress-track.progress-1 span { width: 14%; }.progress-track.progress-2 span { width: 29%; }.progress-track.progress-3 span { width: 43%; }.progress-track.progress-4 span { width: 57%; }.progress-track.progress-5 span { width: 71%; }.progress-track.progress-6 span { width: 86%; }.progress-track.progress-7 span { width: 100%; }
.studio-body { background: var(--paper-bright); }.studio-layout { display: grid; grid-template-columns: 1fr 310px; gap: 75px; align-items: start; }.desk-title > span { font: 900 9px/1 ui-monospace, monospace; letter-spacing: .1em; text-transform: uppercase; color: var(--blue); }.desk-title h2 { margin-bottom: 45px; }
.module-stack { border-top: 1px solid var(--line); }.module-row { min-height: 112px; display: grid; grid-template-columns: 65px 1fr 90px; gap: 20px; align-items: center; padding: 18px; border-bottom: 1px solid var(--line); text-decoration: none; transition: background .15s ease, transform .15s ease; }.module-row:hover { background: var(--paper); transform: translateX(4px); }.module-row.complete { background: #f4ffd4; }.module-day { color: var(--blue); font: 500 35px/1 Georgia, serif; }.module-main { display: grid; gap: 4px; }.module-main small { font: 850 8px/1 ui-monospace, monospace; letter-spacing: .08em; text-transform: uppercase; }.module-main strong { font: 500 25px/1.1 Georgia, serif; }.module-main em { color: var(--muted); font-size: 10px; font-style: normal; }.module-state { display: flex; align-items: center; justify-content: flex-end; gap: 8px; font-size: 10px; font-weight: 850; }.module-state i { font-style: normal; color: var(--blue); }
.studio-aside { position: sticky; top: 25px; }.dark-teacher-card { color: white; background: var(--board); box-shadow: 6px 6px 0 var(--ink); }.privacy-lock { display: flex; gap: 15px; margin: 32px 0; padding: 18px 0; border-block: 1px solid var(--line); }.privacy-lock > span { width: 34px; height: 34px; display: grid; place-items: center; flex: 0 0 auto; background: var(--lime); border-radius: 50%; }.privacy-lock strong { font-size: 11px; }.privacy-lock p { margin: 4px 0 0; color: var(--muted); font-size: 10px; line-height: 1.45; }

.lesson-board-header { padding: 60px 0; color: white; background: var(--board); }.lesson-header-grid { display: grid; grid-template-columns: 110px 1fr 120px; gap: 42px; align-items: center; }.lesson-index { width: 95px; height: 120px; display: grid; place-items: center; align-content: center; color: var(--ink); background: var(--lime); border: 2px solid var(--ink); box-shadow: 6px 6px 0 #0b2c27; transform: rotate(-2deg); }.lesson-index span, .lesson-index small { font: 850 8px/1 ui-monospace, monospace; letter-spacing: .1em; }.lesson-index strong { font: 500 50px/1 Georgia, serif; }.lesson-board-header h1 { margin: 9px 0 8px; font-size: clamp(47px, 5.3vw, 72px); }.lesson-board-header p { max-width: 620px; margin: 0; color: rgba(255,255,255,.72); }.back-to-desk { color: white; font-size: 11px; font-weight: 800; }
.lesson-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 70px; align-items: start; }.lesson-reading { position: sticky; top: 28px; }.margin-note { color: var(--blue); font: 900 9px/1 ui-monospace, monospace; letter-spacing: .1em; }.lesson-reading h2 { margin: 15px 0; font: 500 45px/1 Georgia, serif; }.lesson-lead { color: var(--muted); font-size: 16px; line-height: 1.75; }
.chalk-example { margin-top: 35px; padding: 29px; color: white; background: var(--board); border: 8px solid #b7844f; box-shadow: 5px 5px 0 var(--ink); transform: rotate(-1deg); }.chalk-example > span { color: var(--lime); font: 850 8px/1 ui-monospace, monospace; text-transform: uppercase; }.chalk-example h3 { margin: 15px 0 10px; font: 500 25px/1.1 Georgia, serif; }.chalk-example p { margin: 0; color: rgba(255,255,255,.78); font-size: 12px; line-height: 1.6; }
.assignment-brief { margin-top: 32px; padding: 25px; background: #fff6bf; border-left: 5px solid var(--coral); }.assignment-brief > span { font: 900 8px/1 ui-monospace, monospace; letter-spacing: .1em; }.assignment-brief h3 { margin: 12px 0 8px; font: 500 24px/1.1 Georgia, serif; }.assignment-brief p { margin: 0; font-size: 12px; line-height: 1.6; }
.workbook-form { position: relative; padding: 45px 45px 45px 60px; background: #fffef8; background-image: repeating-linear-gradient(0deg, transparent 0 35px, rgba(85,92,255,.11) 36px 37px); }.workbook-form::before { content: ""; position: absolute; inset-block: 0; left: 42px; border-left: 1px solid rgba(255,113,95,.34); }.workbook-rings { position: absolute; top: 30px; bottom: 30px; left: -11px; display: flex; flex-direction: column; justify-content: space-around; }.workbook-rings i { width: 23px; height: 9px; display: block; border: 2px solid var(--ink); border-radius: 8px; background: var(--paper); }
.workbook-heading { position: relative; z-index: 1; display: grid; gap: 9px; margin-bottom: 35px; }.workbook-heading span { color: var(--blue); font: 900 8px/1 ui-monospace, monospace; letter-spacing: .1em; }.workbook-heading strong { font: 500 33px/1.1 Georgia, serif; }.workbook-form .field, .workbook-form .privacy-check, .workbook-form .button, .save-note { position: relative; z-index: 1; }.workbook-form textarea { min-height: 300px; background: rgba(255,255,255,.88); }.field-counter { position: absolute; top: 0; right: 0; color: var(--muted); font: 800 8px/1 ui-monospace, monospace; }.workbook-share { background: rgba(238,246,255,.92); }.save-note { margin: 15px 0 0; color: var(--muted); font-size: 9px; line-height: 1.5; text-align: center; }

.practice-score { width: 220px; height: 220px; display: grid; place-items: center; align-content: center; color: var(--ink); background: var(--lime); border: 2px solid var(--ink); border-radius: 50%; box-shadow: 9px 9px 0 #0c2925; transform: rotate(2deg); }.practice-score > span { font: 900 8px/1 ui-monospace, monospace; letter-spacing: .1em; }.practice-score strong { margin: 8px 0 3px; font: 500 75px/.9 Georgia, serif; }.practice-score strong i { font-size: 28px; font-style: normal; }.practice-score small { font-size: 10px; font-weight: 850; text-transform: uppercase; }
.test-layout { display: grid; grid-template-columns: 1fr 350px; gap: 70px; align-items: start; }.desk-title > p { max-width: 650px; color: var(--muted); line-height: 1.65; }.challenge-form { margin-top: 35px; background: var(--paper); }.challenge-form textarea { min-height: 140px; font: 500 20px/1.45 Georgia, serif; }.result-card { display: grid; grid-template-columns: 65px 1fr; gap: 22px; margin-top: 35px; padding: 29px; border: 1.5px solid var(--ink); box-shadow: 6px 6px 0 var(--ink); }.result-learned { background: #eaffbb; }.result-approval { background: #fff0b8; }.result-not_learned { background: #ffd9d4; }.result-mark { width: 58px; height: 58px; display: grid; place-items: center; border: 2px solid var(--ink); border-radius: 50%; font: 500 32px/1 Georgia, serif; }.result-label { font: 900 8px/1 ui-monospace, monospace; letter-spacing: .1em; }.result-card h3 { margin: 8px 0; font: 500 28px/1.1 Georgia, serif; }.result-card p { margin: 0; font-size: 12px; line-height: 1.65; }.evidence-line { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 18px; }.evidence-line span { width: 100%; font: 850 8px/1 ui-monospace, monospace; text-transform: uppercase; }.evidence-line strong { padding: 6px 9px; background: white; border: 1px solid var(--ink); border-radius: 99px; font-size: 9px; }
.evidence-board { position: sticky; top: 25px; border: 1.5px solid var(--ink); background: var(--paper); box-shadow: 7px 7px 0 var(--blue); }.evidence-board-header { display: flex; justify-content: space-between; padding: 16px 18px; color: white; background: var(--ink); font: 850 8px/1 ui-monospace, monospace; }.evidence-row { display: grid; grid-template-columns: 28px 1fr 20px; gap: 10px; align-items: center; padding: 15px 17px; border-bottom: 1px solid var(--line); opacity: .45; }.evidence-row.available { opacity: 1; }.evidence-row > span { color: var(--blue); font: 500 18px/1 Georgia, serif; }.evidence-row div { display: grid; gap: 3px; }.evidence-row strong { font-size: 10px; }.evidence-row small { overflow: hidden; color: var(--muted); font-size: 8px; text-overflow: ellipsis; white-space: nowrap; }.evidence-row i { color: var(--blue); font-style: normal; }.evidence-board > p { margin: 0; padding: 18px; color: var(--muted); font-size: 9px; line-height: 1.55; }.evidence-board > .text-link { margin: 0 18px 20px; }

.challenge-hero { padding: 85px 0; color: white; background: var(--blue); }.challenge-hero-grid { display: grid; grid-template-columns: 1fr 220px; gap: 100px; align-items: center; }.demo-label { display: flex; align-items: center; gap: 12px; font: 900 9px/1 ui-monospace, monospace; letter-spacing: .1em; }.demo-label strong { padding: 7px 9px; color: var(--ink); background: var(--lime); border: 1px solid var(--ink); }.challenge-hero h1 { max-width: 850px; margin: 22px 0; }.challenge-hero p { max-width: 720px; color: rgba(255,255,255,.77); font-size: 17px; line-height: 1.65; }.challenge-meta { display: flex; flex-wrap: wrap; gap: 25px; margin-top: 30px; }.challenge-meta span { padding-right: 25px; border-right: 1px solid rgba(255,255,255,.27); font-size: 9px; text-transform: uppercase; letter-spacing: .06em; }.challenge-meta span:last-child { border: 0; }.challenge-meta strong { display: block; margin-bottom: 3px; color: var(--lime); font: 500 20px/1 Georgia, serif; text-transform: none; }
.exam-seal { width: 190px; height: 190px; display: grid; place-items: center; align-content: center; color: var(--ink); background: var(--lime); border: 4px double var(--ink); border-radius: 50%; box-shadow: 8px 8px 0 var(--ink); transform: rotate(8deg); }.exam-seal span { font: 900 9px/1 ui-monospace, monospace; letter-spacing: .1em; }.exam-seal strong { font: 500 70px/.9 Georgia, serif; }.exam-seal small { font: 850 8px/1.2 ui-monospace, monospace; text-align: center; }
.exam-section { background: var(--paper-bright); }.public-test-layout { display: grid; grid-template-columns: 1fr 340px; gap: 75px; align-items: start; }.exam-instructions h2 { max-width: 780px; }.exam-instructions > span { color: var(--coral); font: 900 9px/1 ui-monospace, monospace; letter-spacing: .1em; }.exam-instructions > p { max-width: 690px; color: var(--muted); line-height: 1.7; }.public-challenge-form { background: var(--paper); }.prototype-note { display: grid; grid-template-columns: 170px 1fr; gap: 20px; margin-top: 40px; padding: 23px; background: #eef6ff; border-left: 5px solid var(--blue); }.prototype-note strong { font: 500 20px/1.1 Georgia, serif; }.prototype-note p { margin: 0; color: var(--muted); font-size: 11px; line-height: 1.6; }
.public-report { position: sticky; top: 25px; padding: 27px; background: #fff6bf; border: 2px solid var(--ink); box-shadow: 8px 8px 0 var(--ink); transform: rotate(1deg); }.report-top { display: flex; justify-content: space-between; padding-bottom: 15px; border-bottom: 1px solid var(--ink); font: 900 8px/1 ui-monospace, monospace; }.report-top i { color: var(--blue); font-style: normal; }.public-report h3 { margin: 28px 0 4px; font: 500 31px/1.06 Georgia, serif; }.public-report > p { margin: 0; font-size: 10px; }.report-numbers { margin-top: 27px; border-block: 1px solid var(--ink); }.report-numbers div { display: flex; justify-content: space-between; align-items: center; padding: 13px 0; border-bottom: 1px dashed rgba(23,28,54,.35); }.report-numbers div:last-child { border: 0; }.report-numbers strong { font: 500 27px/1 Georgia, serif; }.report-numbers span { max-width: 100px; font-size: 8px; font-weight: 850; text-align: right; text-transform: uppercase; }.report-rule { display: grid; gap: 5px; margin: 24px 0; }.report-rule span { font: 850 8px/1 ui-monospace, monospace; }.report-rule strong { font-size: 10px; }.share-button { width: 100%; padding: 13px; background: var(--paper-bright); border: 1px solid var(--ink); font-size: 10px; font-weight: 850; cursor: pointer; }
.taught-section { color: white; background: var(--ink); }.taught-section .compact-heading h2 { color: white; }.taught-section .compact-heading p { color: rgba(255,255,255,.65); }.taught-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: rgba(255,255,255,.2); border: 1px solid rgba(255,255,255,.2); }.taught-grid article { min-height: 245px; padding: 33px; background: var(--ink); }.taught-grid article > span { color: var(--lime); font: 500 25px/1 Georgia, serif; }.taught-grid h3 { margin: 30px 0 11px; font: 500 26px/1.1 Georgia, serif; }.taught-grid p { margin: 0; color: rgba(255,255,255,.65); font-size: 12px; line-height: 1.65; }

.rules-poster strong { display: block; margin: 23px 0; font: 900 29px/1.05 ui-sans-serif, system-ui, sans-serif; }.rules-poster i { display: block; padding-top: 16px; border-top: 1px solid var(--ink); font: 850 8px/1.4 ui-monospace, monospace; font-style: normal; }
.rules-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }.rules-grid article { min-height: 260px; padding: 38px; background: var(--paper-bright); }.rules-grid article > span { color: var(--blue); font: 500 25px/1 Georgia, serif; }.rules-grid h2 { margin: 40px 0 12px; font: 500 31px/1.1 Georgia, serif; }.rules-grid p { max-width: 500px; margin: 0; color: var(--muted); font-size: 13px; line-height: 1.7; }
.truth-panel { display: grid; grid-template-columns: 1fr .8fr; gap: 70px; align-items: end; margin-top: 85px; padding: 50px; color: white; background: var(--board); }.truth-panel h2 { font-size: 46px; }.truth-panel > p { margin: 0; color: rgba(255,255,255,.72); line-height: 1.75; }
.privacy-panel { display: grid; grid-template-columns: 80px 1fr auto; gap: 35px; align-items: center; margin-top: 40px; padding: 42px; background: #eef6ff; border: 1.5px solid var(--ink); box-shadow: 7px 7px 0 var(--blue); }.privacy-icon { width: 70px; height: 70px; display: grid; place-items: center; background: var(--lime); border: 1px solid var(--ink); border-radius: 50%; font-size: 28px; }.privacy-panel h2 { margin-top: 11px; font-size: 37px; }.privacy-panel p { margin: 10px 0 0; color: var(--muted); font-size: 12px; line-height: 1.6; }

@media (min-width: 981px) {
  .chalk-board.chalk-animated .chalk-stick { animation: chalk-hand-desktop 3.9s linear .5s forwards; }
}

@media (max-width: 980px) {
  .chalk-motion-control { display: none; }
  .hero-grid, .challenge-grid, .lesson-layout, .test-layout, .public-test-layout { grid-template-columns: 1fr; }
  .hero-grid { padding-bottom: 20px; }.classroom-scene { width: min(620px, 100%); margin-inline: auto; }.class-stats { grid-template-columns: repeat(2, 1fr); }.class-stats > div:nth-child(2) { border-right: 0; }.class-stats > div { border-bottom: 1px solid rgba(255,255,255,.18); }.class-stats > div:first-child { padding-left: 26px; }
  .lesson-grid { grid-template-columns: repeat(2, 1fr); }.lesson-card:nth-child(5), .lesson-card:nth-child(7) { grid-column: auto; }.lesson-card:last-child { grid-column: 1 / 3; }
  .challenge-grid { gap: 65px; }.exam-card { max-width: 700px; }.form-layout, .studio-layout { grid-template-columns: 1fr; }.form-aside, .studio-aside, .lesson-reading, .evidence-board, .public-report { position: static; }.classroom-aside { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }.privacy-note-small { grid-column: 1 / 3; }
  .page-hero-grid { gap: 50px; }.lesson-header-grid { grid-template-columns: 100px 1fr; }.back-to-desk { grid-column: 2; }.lesson-layout { gap: 55px; }.test-layout, .public-test-layout { gap: 55px; }.evidence-board, .public-report { max-width: 600px; }
  .privacy-panel { grid-template-columns: 80px 1fr; }.privacy-panel .button { grid-column: 2; justify-self: start; }
}

@media (max-width: 700px) {
  .shell, .narrow-shell { width: min(100% - 28px, 1180px); }
  .nav-wrap { min-height: 72px; }.brand-board { width: 40px; height: 37px; }.brand-copy small { display: none; }.brand-copy strong { font-size: 15px; } nav { gap: 12px; } nav > a:not(.nav-cta) { display: none; }.nav-cta { padding: 10px 12px; font-size: 10px; }
  .hero-grid { min-height: auto; gap: 35px; padding-top: 55px; }.hero h1, .page-hero h1, .challenge-hero h1 { font-size: clamp(48px, 14vw, 65px); }.hero-lead { font-size: 15px; }.button-row { align-items: flex-start; flex-direction: column; gap: 19px; }.classroom-scene { min-height: 430px; margin-top: 5px; }.board-frame { inset: 15px 0 54px 0; }.chalk-board { padding: 28px 24px 42px; }.chalk-hand-note { top: 38px; right: 18px; font-size: 14px; }.chalk-writing { margin-top: 31px; }.chalk-script { font-size: 42px; }.chalk-flow { gap: 7px; margin-top: 18px; }.chalk-flow b { padding: 7px; font-size: 8px; }.chalk-proof { min-height: 48px; }.chalk-answer { font-size: 14px; }.teacher-stamp { right: -8px; top: -18px; width: 78px; height: 78px; font-size: 7px; }.desk-card { width: 128px; min-height: 88px; padding: 13px; }.desk-card-two { right: -4px; }.class-stats { width: 100%; }.class-stats > div { padding: 18px 14px; }.class-stats > div:first-child { padding-left: 14px; }.class-stats .class-rule { padding-left: 18px; }.class-stats strong { font-size: 26px; }
  .section { padding: 72px 0; }.split-heading, .section-heading, .footer-grid, .truth-panel { grid-template-columns: 1fr; gap: 32px; }.section-heading h2, .split-heading h2, .challenge-copy h2, .desk-title h2, .exam-instructions h2 { font-size: 43px; }.principle-row { grid-template-columns: 1fr; }.principle-row article, .principle-row article:not(:first-child) { min-height: auto; padding: 28px 0; border-right: 0; border-bottom: 1px solid var(--line); }.lesson-grid { grid-template-columns: 1fr; }.lesson-card:last-child { grid-column: auto; }.lesson-card { min-height: 255px; }.syllabus-heading h2::after { display: none; }.exam-body { padding: 38px 31px; }.notebook-list > div { grid-template-columns: 48px 1fr; gap: 10px; padding: 18px; }.notebook-list small { grid-column: 2; }.footer-grid { gap: 60px; }.footer-notes { padding: 35px 0 0; border-left: 0; border-top: 1px solid rgba(255,255,255,.2); }
  .page-hero { padding: 65px 0; }.page-hero-grid { grid-template-columns: 1fr; gap: 40px; }.hero-syllabus-card, .rules-poster { width: min(300px, 100%); }.intro-note { grid-template-columns: 1fr; gap: 12px; }.curriculum-row { grid-template-columns: 72px 1fr; gap: 20px; padding: 48px 0; }.day-marker { width: 68px; height: 88px; }.day-marker strong { font-size: 35px; }.curriculum-copy h2 { font-size: 36px; }.assignment-line { padding: 20px; }.enroll-panel { padding: 36px 25px; }
  .form-layout { gap: 50px; }.course-form, .workbook-form, .challenge-form { padding: 28px 20px; box-shadow: 4px 4px 0 var(--ink); }.field-row, .classroom-aside { grid-template-columns: 1fr; gap: 0; }.privacy-note-small { grid-column: auto; }.studio-heading { align-items: flex-start; }.progress-dial { width: 90px; height: 90px; }.module-row { grid-template-columns: 45px 1fr; gap: 12px; }.module-state { grid-column: 2; justify-content: flex-start; }.module-main strong { font-size: 21px; }
  .lesson-header-grid { grid-template-columns: 72px 1fr; gap: 22px; }.lesson-index { width: 70px; height: 92px; }.lesson-index strong { font-size: 38px; }.lesson-board-header h1 { font-size: 43px; }.back-to-desk { grid-column: 1 / 3; }.workbook-form { padding-left: 35px; }.workbook-form::before { left: 24px; }.workbook-rings { display: none; }.workbook-form textarea { min-height: 240px; }.challenge-form textarea { font-size: 17px; }
  .practice-score { width: 165px; height: 165px; }.practice-score strong { font-size: 57px; }.result-card { grid-template-columns: 1fr; }.prototype-note { grid-template-columns: 1fr; }.challenge-hero-grid { grid-template-columns: 1fr; gap: 45px; }.exam-seal { width: 145px; height: 145px; }.challenge-meta { gap: 12px; }.challenge-meta span { padding-right: 12px; }.taught-grid, .rules-grid { grid-template-columns: 1fr; }.taught-grid article, .rules-grid article { min-height: auto; }.truth-panel { padding: 35px 25px; }.truth-panel h2 { font-size: 39px; }.privacy-panel { grid-template-columns: 1fr; padding: 30px 23px; }.privacy-panel .button { grid-column: 1; }.privacy-panel h2 { font-size: 32px; }
}

/* Training questions, browser file reader, and portable export */
.question-panel { scroll-margin-top: 24px; }
.process-bar { display: flex; align-items: center; justify-content: space-between; gap: 25px; margin-bottom: 25px; padding: 22px; color: var(--ink); background: var(--sky); border: 1.5px solid var(--ink); box-shadow: 5px 5px 0 var(--ink); }
.process-bar > div { display: grid; gap: 6px; }.process-bar strong { font: 500 22px/1.1 Georgia, serif; }.process-bar span { color: var(--muted); font-size: 10px; line-height: 1.5; }
.process-bar form { display: grid; gap: 9px; justify-items: end; }.process-wait { max-width: 250px; color: var(--muted); font-size: 9px; line-height: 1.45; text-align: right; }
.question-list { display: grid; gap: 18px; }
.question-card { padding: 25px; background: #fffef8; border: 1.5px solid var(--ink); box-shadow: 5px 5px 0 var(--coral); }
.question-card-top { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; color: var(--muted); font: 850 8px/1.3 ui-monospace, monospace; text-transform: uppercase; }
.question-card-top a { color: var(--blue); text-decoration: none; text-transform: none; }.question-card-top i { font-style: normal; }
.question-card h3 { max-width: 760px; margin: 22px 0 10px; font: 500 27px/1.15 Georgia, serif; }.question-card > p { margin: 0 0 20px; color: var(--muted); font-size: 11px; line-height: 1.6; }
.quick-replies { display: flex; gap: 10px; margin-bottom: 18px; }.quick-replies form { margin: 0; }
.quick-reply { min-width: 78px; padding: 12px 18px; color: var(--ink); background: var(--lime); border: 1.5px solid var(--ink); box-shadow: 3px 3px 0 var(--ink); font: 900 10px/1 ui-sans-serif, system-ui, sans-serif; cursor: pointer; }.quick-reply:hover { transform: translate(2px, 2px); box-shadow: 1px 1px 0 var(--ink); }
.explanation-form { display: grid; grid-template-columns: 1fr auto; gap: 8px 12px; align-items: end; }.explanation-form label { grid-column: 1 / 3; font-size: 9px; font-weight: 800; }.explanation-form textarea { width: 100%; min-height: 76px; padding: 12px; resize: vertical; border: 1px solid var(--ink); font: 500 12px/1.5 ui-sans-serif, system-ui, sans-serif; }
.answered-drawer { margin-top: 22px; border-top: 1px solid var(--line); }.answered-drawer summary { padding: 20px 0; font-size: 10px; font-weight: 850; cursor: pointer; }.answered-drawer > div { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); }.answered-drawer article { padding: 18px; background: var(--paper-bright); }.answered-drawer strong { font-size: 10px; }.answered-drawer p { margin: 7px 0 0; color: var(--muted); font-size: 10px; line-height: 1.5; }
.upload-field { position: relative; }.upload-button { width: max-content; display: inline-flex !important; align-items: center; margin-top: 4px; color: var(--ink); background: var(--lime); border: 1.5px solid var(--ink); box-shadow: 4px 4px 0 var(--ink); cursor: pointer; }.upload-button span { padding: 14px 18px; font: 900 10px/1 ui-sans-serif, system-ui, sans-serif; text-transform: uppercase; }.upload-button input[type="file"] { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap; }.upload-button:focus-within { outline: 3px solid var(--blue); outline-offset: 3px; }
.export-card { display: grid; gap: 16px; padding: 25px; color: white; background: var(--board); border: 7px solid #b7844f; box-shadow: 7px 7px 0 rgba(23,28,54,.25); transform: rotate(-.6deg); }.export-card > span { color: var(--lime); font: 900 8px/1 ui-monospace, monospace; letter-spacing: .1em; }.export-card h2 { margin: 0; font: 500 29px/1 Georgia, serif; }.export-card p { margin: 0; color: rgba(255,255,255,.75); font-size: 10px; line-height: 1.6; }.export-card .button { justify-content: center; }.export-doc-link { color: white; font-size: 8px; font-weight: 800; }
.kind-question { background: var(--coral); }.kind-answer { background: var(--lime); }
.source-hero { display: flex; align-items: center; justify-content: space-between; gap: 40px; }.source-hero h1 { overflow-wrap: anywhere; }
.source-reader-grid { display: grid; grid-template-columns: minmax(0, 1fr) 310px; gap: 45px; align-items: start; }.source-reader { min-width: 0; }.source-reader-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-bottom: 15px; font: 800 9px/1 ui-monospace, monospace; }.source-reader > pre { min-height: 360px; max-height: 70vh; overflow: auto; margin: 0; padding: 28px; color: #ecf8f4; background: var(--board); border: 8px solid #b7844f; font: 500 12px/1.7 ui-monospace, monospace; white-space: pre-wrap; overflow-wrap: anywhere; }.reader-note { color: var(--muted); font-size: 9px; }
.revision-card { display: grid; gap: 14px; padding: 23px; background: #fff6bf; border: 2px solid var(--ink); box-shadow: 6px 6px 0 var(--ink); }.revision-card article { display: grid; gap: 5px; padding-bottom: 14px; border-bottom: 1px solid rgba(23,28,54,.2); }.revision-card article strong { font-size: 10px; line-height: 1.35; }.revision-card article span { color: var(--muted); font-size: 8px; }.revision-card article p { margin: 3px 0 0; color: var(--muted); font-size: 9px; line-height: 1.5; }
.question-demo-section { background: var(--sky); }.public-question-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }.public-question-grid article { padding: 27px; background: var(--paper-bright); border: 1.5px solid var(--ink); box-shadow: 5px 5px 0 var(--coral); }.public-question-grid span, .public-question-grid small { font: 850 8px/1.2 ui-monospace, monospace; text-transform: uppercase; }.public-question-grid h3 { margin: 26px 0 12px; font: 500 25px/1.12 Georgia, serif; }.public-question-grid p { color: var(--muted); font-size: 11px; line-height: 1.6; }

@media (max-width: 980px) {
  .source-reader-grid { grid-template-columns: 1fr; }.revision-card { max-width: 680px; }
}

@media (max-width: 700px) {
  .process-bar, .source-hero { align-items: flex-start; flex-direction: column; }.process-bar .button { width: 100%; justify-content: center; }.explanation-form { grid-template-columns: 1fr; }.explanation-form label { grid-column: 1; }.public-question-grid { grid-template-columns: 1fr; }.source-reader > pre { padding: 18px; border-width: 6px; font-size: 10px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .chalk-board:not(.chalk-motion-opt-in) .chalk-script { clip-path: none; }.chalk-board:not(.chalk-motion-opt-in) .chalk-hand-note, .chalk-board:not(.chalk-motion-opt-in) .chalk-flow, .chalk-board:not(.chalk-motion-opt-in) .chalk-line, .chalk-board:not(.chalk-motion-opt-in) .chalk-answer { opacity: 1; }.chalk-board:not(.chalk-motion-opt-in) .chalk-hand-note { transform: rotate(3deg); }.chalk-board:not(.chalk-motion-opt-in) .chalk-flow { transform: none; }.chalk-board:not(.chalk-motion-opt-in) .chalk-line { transform: scaleX(1); }.chalk-board:not(.chalk-motion-opt-in) .chalk-answer { transform: rotate(-4deg); }.chalk-board:not(.chalk-motion-opt-in) .chalk-stick { display: none; }
  .chalk-board.chalk-motion-opt-in .chalk-stick { display: block; }
  .chalk-board.chalk-motion-opt-in.chalk-animated .chalk-hand-note { animation-duration: .45s !important; }
  .chalk-board.chalk-motion-opt-in.chalk-animated .chalk-script-one { animation-duration: 1.55s !important; }
  .chalk-board.chalk-motion-opt-in.chalk-animated .chalk-script-two { animation-duration: 1.75s !important; }
  .chalk-board.chalk-motion-opt-in.chalk-animated .chalk-letter { animation-duration: .25s !important; }
  .chalk-board.chalk-motion-opt-in.chalk-animated .chalk-stick { animation-duration: 3.9s !important; }
  .chalk-board.chalk-motion-opt-in.chalk-animated .chalk-writing::after { animation-duration: .8s !important; }
  .chalk-board.chalk-motion-opt-in.chalk-animated .chalk-flow { animation-duration: .55s !important; }
  .chalk-board.chalk-motion-opt-in.chalk-animated .chalk-line { animation-duration: 1.1s !important; }
  .chalk-board.chalk-motion-opt-in.chalk-animated .chalk-answer { animation-duration: .55s !important; }
}

/* Agent-file product reconstruction */
.section-lead { max-width: 680px; color: var(--muted); font-size: 16px; line-height: 1.75; }
.agent-card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.agent-card { min-height: 390px; display: flex; flex-direction: column; padding: 28px; color: var(--ink); background: var(--paper-bright); border: 1.5px solid var(--ink); box-shadow: 6px 6px 0 rgba(12,15,36,.9); }
.agent-card:nth-child(2) { background: var(--sky); }.agent-card:nth-child(3) { background: var(--lime); }
.agent-card-top, .artifact-card-top { display: flex; align-items: center; justify-content: space-between; gap: 14px; font: 900 8px/1.2 ui-monospace, monospace; letter-spacing: .08em; text-transform: uppercase; }
.agent-card-top i { padding: 6px 8px; color: white; background: var(--blue); font-style: normal; }
.agent-card h3 { margin: 46px 0 15px; font: 500 33px/1.05 Georgia, serif; }
.agent-card > p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.68; }
.agent-card-counts { display: flex; gap: 25px; margin: auto 0 24px; padding-top: 28px; }
.agent-card-counts span { display: grid; gap: 3px; color: var(--muted); font-size: 8px; text-transform: uppercase; }
.agent-card-counts strong { color: var(--ink); font: 500 24px/1 Georgia, serif; text-transform: none; }
.large-agent-grid .agent-card { min-height: 430px; }

.repository-grid, .self-host-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 85px; align-items: center; }
.repository-grid h2, .self-host-grid h2 { margin: 18px 0; font: 500 clamp(43px, 5vw, 66px)/.97 Georgia, serif; letter-spacing: -.045em; }
.repo-board, .command-board { padding: 22px; color: white; background: var(--ink); border: 9px solid #b7844f; box-shadow: 9px 9px 0 rgba(23,28,54,.22); transform: rotate(1deg); }
.repo-board > div { display: grid; grid-template-columns: 25px 1fr auto; gap: 10px; align-items: center; padding: 15px 13px; border-bottom: 1px solid rgba(255,255,255,.14); }
.repo-board > div:last-child { border: 0; }.repo-board span { color: var(--lime); }.repo-board strong { font: 700 12px/1.2 ui-monospace, monospace; }.repo-board i { color: rgba(255,255,255,.56); font: 700 8px/1 ui-monospace, monospace; font-style: normal; text-transform: uppercase; }
.access-band { color: var(--ink); background: var(--coral); }
.access-band-grid { display: grid; grid-template-columns: 1fr auto; gap: 80px; align-items: center; }
.access-band h2 { margin: 16px 0 13px; font: 500 clamp(42px, 5vw, 65px)/.98 Georgia, serif; letter-spacing: -.045em; }.access-band p { max-width: 720px; margin: 0; line-height: 1.65; }
.access-actions { display: grid; justify-items: start; gap: 22px; min-width: 230px; }

.demo-page-hero, .self-host-hero, .curriculum-page > .page-hero, .principles-page > .page-hero { color: white; background: var(--board); }
.repo-seal { width: 190px; height: 190px; display: grid; place-items: center; align-content: center; color: var(--ink); background: var(--lime); border: 4px double var(--ink); border-radius: 50%; box-shadow: 8px 8px 0 #0c2925; transform: rotate(7deg); }
.repo-seal span { font: 900 9px/1 ui-monospace, monospace; }.repo-seal strong { font: 500 72px/.9 Georgia, serif; }.repo-seal small { font: 850 8px/1.2 ui-monospace, monospace; text-align: center; }
.command-board { display: grid; gap: 1px; margin-top: 35px; transform: none; }
.command-board code { display: block; padding: 17px; color: var(--lime); background: rgba(255,255,255,.06); font: 700 12px/1.4 ui-monospace, monospace; }
.command-note { color: var(--muted); font-size: 10px; line-height: 1.6; }
.self-host-features { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.self-host-features article { display: grid; grid-template-columns: 55px 1fr; gap: 18px; padding: 25px; background: var(--paper-bright); }.self-host-features article > span { color: var(--blue); font: 500 27px/1 Georgia, serif; }.self-host-features strong { font: 500 21px/1.1 Georgia, serif; }.self-host-features p { margin: 8px 0 0; color: var(--muted); font-size: 11px; line-height: 1.6; }
.wide-repo-board { max-width: 820px; margin-inline: auto; background: #11162d; }.wide-repo-board i { color: rgba(255,255,255,.68); }

.workflow-steps { display: grid; gap: 0; border-block: 1px solid var(--line); }
.workflow-steps article { display: grid; grid-template-columns: 100px 1fr; gap: 40px; padding: 45px 0; border-bottom: 1px solid var(--line); }.workflow-steps article:last-child { border: 0; }.workflow-steps article > span { color: var(--blue); font: 500 47px/1 Georgia, serif; }.workflow-steps small { color: var(--coral); font: 900 9px/1 ui-monospace, monospace; letter-spacing: .12em; }.workflow-steps h2 { margin: 10px 0; font: 500 37px/1 Georgia, serif; }.workflow-steps p { max-width: 760px; margin: 0; color: var(--muted); line-height: 1.7; }

.agent-studio-heading { align-items: center; }.agent-studio-heading > div:first-child { max-width: 760px; }
.agent-health-card { min-width: 230px; display: grid; gap: 7px; padding: 23px; color: var(--ink); background: var(--lime); border: 2px solid var(--ink); box-shadow: 6px 6px 0 #0b0e20; transform: rotate(1deg); }.agent-health-card span { font: 900 8px/1 ui-monospace, monospace; letter-spacing: .1em; }.agent-health-card strong { font: 500 26px/1 Georgia, serif; }.agent-health-card small { font-size: 9px; text-transform: uppercase; }
.agent-workspace-grid { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 55px; align-items: start; }
.agent-main-column { display: grid; gap: 55px; min-width: 0; }.workspace-panel { min-width: 0; }.panel-heading { display: grid; grid-template-columns: 1fr 280px; gap: 35px; align-items: end; margin-bottom: 28px; }.panel-heading h2 { margin: 12px 0 0; font: 500 clamp(36px, 4vw, 53px)/1 Georgia, serif; letter-spacing: -.04em; }.panel-heading > p { margin: 0; color: var(--muted); font-size: 11px; line-height: 1.6; }
.agent-file-list { border: 1.5px solid var(--ink); box-shadow: 6px 6px 0 var(--blue); }
.agent-file-row { display: grid; grid-template-columns: 42px minmax(180px, 1fr) 125px 150px; gap: 16px; align-items: center; padding: 17px; background: var(--paper-bright); border-bottom: 1px solid var(--line); }.agent-file-row:last-child { border: 0; }
.file-icon { width: 36px; height: 36px; display: grid; place-items: center; color: white; background: var(--board); border: 1px solid var(--ink); font: 900 11px/1 ui-monospace, monospace; }
.file-main { min-width: 0; display: grid; gap: 4px; }.file-main small { color: var(--muted); font: 800 7px/1 ui-monospace, monospace; }.file-main strong { overflow: hidden; font: 750 11px/1.25 ui-monospace, monospace; text-overflow: ellipsis; white-space: nowrap; }.file-main span { color: var(--muted); font-size: 9px; }
.file-version { display: grid; justify-items: start; gap: 7px; }.file-version small { color: var(--muted); font-size: 7px; line-height: 1.3; }
.status-pill { display: inline-flex; padding: 6px 8px; border: 1px solid var(--ink); border-radius: 99px; background: #fff0b8; font: 900 7px/1 ui-monospace, monospace; letter-spacing: .04em; text-transform: uppercase; }.status-active, .status-approved, .status-published { background: var(--lime); }.status-retired { background: #e1e2e8; }.status-review { background: var(--sky); }
.file-actions, .artifact-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 7px; }.file-actions form, .artifact-actions form { margin: 0; }
.mini-action { display: inline-flex; align-items: center; min-height: 30px; padding: 7px 9px; color: var(--ink); background: white; border: 1px solid var(--ink); font: 850 8px/1 ui-sans-serif, system-ui, sans-serif; text-decoration: none; cursor: pointer; }.approve-action { background: var(--lime); }
.agent-file-form { background: #fffef8; }.agent-file-form input[type="file"] { padding: 12px; background: white; border: 1px dashed var(--ink); }
.agent-desk-panel { padding-top: 10px; }.agent-task-form { margin: 0 0 30px; background: var(--board); }.agent-task-form label { color: white; }.agent-task-form textarea { background: var(--paper-bright); }
.artifact-list { display: grid; gap: 22px; }.artifact-card, .public-artifact-grid article { padding: 28px; background: var(--paper-bright); border: 1.5px solid var(--ink); box-shadow: 5px 5px 0 var(--ink); }.artifact-card h3, .public-artifact-grid h3 { margin: 25px 0 14px; font: 500 27px/1.1 Georgia, serif; }.artifact-card pre, .public-artifact-grid pre { max-height: 260px; overflow: auto; margin: 0; padding: 18px; color: #ecf8f4; background: var(--board); font: 500 11px/1.65 ui-monospace, monospace; white-space: pre-wrap; }.artifact-actions { justify-content: flex-start; margin-top: 18px; }
.source-chip-row { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 16px; align-items: center; }.source-chip-row span { font: 850 8px/1 ui-monospace, monospace; text-transform: uppercase; }.source-chip-row strong { padding: 6px 8px; background: var(--sky); border: 1px solid var(--ink); border-radius: 99px; font-size: 8px; }
.empty-classroom { padding: 35px; border: 1px dashed var(--ink); text-align: center; }.empty-classroom strong { font: 500 24px/1 Georgia, serif; }.empty-classroom p { color: var(--muted); }
.agent-history-column { position: sticky; top: 25px; display: grid; gap: 25px; }.history-card { padding: 25px; background: #fff6bf; border: 2px solid var(--ink); box-shadow: 7px 7px 0 var(--ink); }.history-list { display: grid; margin-top: 20px; }.history-list article { position: relative; display: grid; gap: 6px; padding: 0 0 24px 22px; border-left: 1px solid rgba(23,28,54,.27); }.history-list article:last-child { padding-bottom: 0; border-color: transparent; }.history-dot { position: absolute; top: 1px; left: -5px; width: 9px; height: 9px; background: var(--blue); border: 1px solid var(--ink); border-radius: 50%; }.kind-correction { background: var(--coral); }.kind-approval { background: var(--lime); }.kind-test { background: var(--pencil); }.history-list small { color: var(--muted); font: 800 7px/1 ui-monospace, monospace; text-transform: uppercase; }.history-list strong { font-size: 10px; line-height: 1.35; }.history-list p { margin: 0; color: var(--muted); font-size: 9px; line-height: 1.5; }

.public-agent-grid { display: grid; grid-template-columns: 1fr 340px; gap: 70px; align-items: start; }.public-history-card { position: sticky; top: 25px; transform: rotate(.5deg); }
.public-file-list { display: grid; border: 1.5px solid var(--ink); box-shadow: 7px 7px 0 var(--blue); }.public-file { background: var(--paper-bright); border-bottom: 1px solid var(--line); }.public-file:last-child { border: 0; }.public-file summary { display: grid; grid-template-columns: 35px 1fr auto; gap: 13px; align-items: center; padding: 18px; cursor: pointer; list-style: none; }.public-file summary::-webkit-details-marker { display: none; }.public-file summary > span { width: 30px; height: 30px; display: grid; place-items: center; color: white; background: var(--board); font: 900 9px/1 ui-monospace, monospace; }.public-file summary strong { font: 750 11px/1.3 ui-monospace, monospace; }.public-file summary i { color: var(--muted); font: 800 7px/1 ui-monospace, monospace; font-style: normal; text-transform: uppercase; }.public-file > div { padding: 5px 25px 25px 66px; }.public-file h3 { margin: 0 0 13px; font: 500 24px/1.1 Georgia, serif; }.public-file pre { max-height: 300px; overflow: auto; padding: 18px; color: #ecf8f4; background: var(--board); font: 500 10px/1.65 ui-monospace, monospace; white-space: pre-wrap; }.public-file a { font-size: 9px; font-weight: 800; }
.produced-files-section { color: white; background: var(--ink); }.produced-files-section .compact-heading h2 { color: white; }.produced-files-section .compact-heading p { color: rgba(255,255,255,.65); }.public-artifact-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }.public-artifact-grid article { color: var(--ink); }.public-artifact-grid pre { max-height: none; }

@media (max-width: 980px) {
  .agent-card-grid { grid-template-columns: 1fr 1fr; }.agent-card:last-child { grid-column: 1 / 3; }
  .repository-grid, .self-host-grid, .access-band-grid, .agent-workspace-grid, .public-agent-grid { grid-template-columns: 1fr; }.access-actions { min-width: 0; }
  .agent-history-column, .public-history-card { position: static; }.history-card { max-width: 680px; }
  .panel-heading { grid-template-columns: 1fr; }.agent-file-row { grid-template-columns: 42px 1fr 125px; }.file-actions { grid-column: 2 / 4; justify-content: flex-start; }
}

@media (max-width: 700px) {
  .agent-card-grid { grid-template-columns: 1fr; }.agent-card:last-child { grid-column: auto; }.agent-card { min-height: 350px; }
  .repository-grid, .self-host-grid { gap: 45px; }.repo-board { padding: 13px; border-width: 6px; }.repo-board > div { grid-template-columns: 18px 1fr; }.repo-board i { grid-column: 2; }
  .access-band-grid { gap: 38px; }.access-band h2 { font-size: 42px; }
  .workflow-steps article { grid-template-columns: 55px 1fr; gap: 18px; padding: 35px 0; }.workflow-steps article > span { font-size: 34px; }.workflow-steps h2 { font-size: 30px; }
  .agent-studio-heading { display: grid; }.agent-health-card { min-width: 0; }.agent-workspace-grid { gap: 45px; }
  .agent-file-row { grid-template-columns: 34px minmax(0, 1fr); gap: 12px; }.file-version, .file-actions { grid-column: 2; }.file-actions { justify-content: flex-start; }.file-main strong { white-space: normal; word-break: break-word; }
  .public-file summary { grid-template-columns: 30px 1fr; }.public-file summary i { grid-column: 2; }.public-file > div { padding: 5px 18px 22px; }.public-artifact-grid { grid-template-columns: 1fr; }
  .artifact-card, .public-artifact-grid article { padding: 21px; }.artifact-card-top { align-items: flex-start; flex-direction: column; }
  .repo-seal { width: 145px; height: 145px; }.repo-seal strong { font-size: 56px; }
}

.history-dot.kind-question { background: var(--coral); }
.history-dot.kind-answer { background: var(--lime); }

/* Domain suite and public learning pages */
.domain-suite-section { color: white; background: var(--board); }
.domain-heading { align-items: end; }.domain-heading h2 { color: white; }.domain-heading > p { color: rgba(255,255,255,.7); }
.domain-card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.domain-card { min-height: 320px; display: flex; flex-direction: column; padding: 28px; color: var(--ink); border: 2px solid var(--ink); box-shadow: 7px 7px 0 #080d20; }
.domain-card > span { font: 900 8px/1 ui-monospace, monospace; letter-spacing: .1em; }.domain-card h3 { overflow-wrap: anywhere; margin: 45px 0 15px; font: 500 29px/1.05 Georgia, serif; }.domain-card p { margin: 0; font-size: 11px; line-height: 1.68; }.domain-card a { margin-top: auto; padding-top: 28px; font-size: 10px; font-weight: 850; }.domain-card b { color: var(--blue); }
.public-room { background: var(--paper-bright); }.agent-room { background: var(--lime); transform: translateY(-10px); }.security-room { background: var(--sky); }
.guide-hero { padding: 105px 0 90px; color: white; background: var(--board); }.narrow-shell { width: min(840px, calc(100% - 40px)); margin-inline: auto; }.guide-hero h1 { max-width: 800px; margin: 20px 0; font: 500 clamp(52px, 7vw, 86px)/.94 Georgia, serif; letter-spacing: -.05em; }.guide-hero p { max-width: 730px; color: rgba(255,255,255,.73); font-size: 18px; line-height: 1.7; }
.guide-body { background: var(--paper-bright); }.guide-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }.guide-grid article { min-height: 300px; padding: 34px; background: var(--paper-bright); }.guide-grid article > span { color: var(--blue); font: 500 38px/1 Georgia, serif; }.guide-grid h2 { margin: 55px 0 15px; font: 500 29px/1.05 Georgia, serif; }.guide-grid p { color: var(--muted); font-size: 12px; line-height: 1.75; }
.guide-takeaway { color: white; background: var(--blue); }.guide-takeaway h2 { max-width: 760px; margin: 18px 0 34px; color: white; font: 500 clamp(40px, 5vw, 62px)/1 Georgia, serif; }.guide-links { display: flex; flex-wrap: wrap; gap: 12px; }.guide-links a { padding: 12px 15px; color: var(--ink); background: var(--lime); border: 1px solid var(--ink); font-size: 10px; font-weight: 850; }
.agent-domain-hero { min-height: 70vh; display: grid; align-items: center; padding: 100px 0; color: white; background: var(--board); }.agent-domain-grid { display: grid; grid-template-columns: 1fr 420px; gap: 85px; align-items: center; }.agent-domain-hero h1 { max-width: 760px; margin: 25px 0; font: 500 clamp(55px, 7vw, 88px)/.93 Georgia, serif; letter-spacing: -.05em; }.agent-domain-hero h1 em { color: var(--lime); font-style: normal; }.agent-domain-hero p { max-width: 680px; color: rgba(255,255,255,.74); font-size: 16px; line-height: 1.7; }.agent-domain-board { padding: 42px; color: var(--ink); background: var(--lime); border: 10px solid #b7844f; box-shadow: 10px 10px 0 #0b0e20; transform: rotate(1.5deg); }.agent-domain-board span { font: 900 9px/1 ui-monospace, monospace; letter-spacing: .1em; }.agent-domain-board strong { display: block; margin: 55px 0 25px; font: 500 35px/1.12 Georgia, serif; }.agent-domain-board p { color: var(--ink); font: 800 9px/1.5 ui-monospace, monospace; }.agent-domain-rules { display: flex; flex-wrap: wrap; gap: 9px; margin: 32px 0 0; padding: 0; list-style: none; }.agent-domain-rules li { padding: 8px 10px; border: 1px solid rgba(255,255,255,.45); font-size: 9px; font-weight: 750; }
.handoff-card { display: grid; gap: 14px; padding: 24px; color: var(--ink); background: var(--sky); border: 2px solid var(--ink); box-shadow: 7px 7px 0 var(--ink); }.handoff-card > span { font: 900 8px/1 ui-monospace, monospace; letter-spacing: .1em; }.handoff-card h2 { margin: 0; font: 500 27px/1.05 Georgia, serif; }.handoff-card p { margin: 0; font-size: 10px; line-height: 1.6; }.handoff-card .button { width: 100%; justify-content: center; }

@media (max-width: 980px) {
  .domain-card-grid, .guide-grid { grid-template-columns: 1fr; }.domain-card { min-height: 250px; }.agent-room { transform: none; }.agent-domain-grid { grid-template-columns: 1fr; }.agent-domain-board { max-width: 600px; }
}

@media (max-width: 700px) {
  .guide-hero, .agent-domain-hero { padding: 75px 0; }.domain-card { min-height: 280px; }.guide-grid article { min-height: 250px; padding: 28px; }.guide-grid h2 { margin-top: 35px; }.agent-domain-board { padding: 28px; border-width: 7px; }.agent-domain-board strong { margin-top: 40px; font-size: 29px; }
}

/* Public English AI school */
.school-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 25px; margin-bottom: 38px; padding-bottom: 20px; border-bottom: 1px solid var(--line); }
.school-toolbar strong { font: 500 25px/1 Georgia, serif; }.school-toolbar > div { display: flex; flex-wrap: wrap; gap: 8px; }
.school-toolbar a { padding: 9px 13px; border: 1px solid var(--ink); border-radius: 999px; font-size: 10px; font-weight: 850; text-decoration: none; }.school-toolbar a.active { color: white; background: var(--blue); }
.school-card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.school-card { min-height: 360px; display: flex; flex-direction: column; padding: 28px; background: var(--paper-bright); border: 1.5px solid var(--ink); box-shadow: 6px 6px 0 var(--ink); }
.school-card.level-practitioner { background: #edf6ff; }.school-card.level-advanced { background: #f1ffd0; }
.school-card-meta { display: flex; justify-content: space-between; font: 900 8px/1 ui-monospace, monospace; letter-spacing: .08em; text-transform: uppercase; }.school-card-meta i { padding: 6px 8px; color: white; background: var(--blue); font-style: normal; }
.school-card h2 { margin: 44px 0 14px; font: 500 30px/1.06 Georgia, serif; }.school-card h2 a { text-decoration: none; }.school-card h2 a:hover { color: var(--blue); }
.school-card > p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.7; }.school-card-foot { display: flex; align-items: flex-end; justify-content: space-between; gap: 15px; margin-top: auto; padding-top: 28px; border-top: 1px dashed var(--line); }.school-card-foot span { max-width: 70%; color: var(--muted); font-size: 8px; font-weight: 800; text-transform: uppercase; }.school-card-foot a { font-size: 10px; font-weight: 900; }
.school-paths, .composition-result { color: white; background: var(--blue); }.school-paths .section-heading h2, .composition-result .section-heading h2 { color: white; }.school-paths .section-heading > p, .composition-result .section-heading > div:last-child { color: rgba(255,255,255,.78); line-height: 1.7; }
.preset-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }.preset-grid article { min-height: 310px; display: flex; flex-direction: column; padding: 28px; color: var(--ink); background: var(--paper-bright); border: 2px solid var(--ink); box-shadow: 7px 7px 0 #151a33; }.preset-grid article:nth-child(2) { background: var(--sky); }.preset-grid article:nth-child(3) { background: var(--lime); }.preset-grid span { font: 900 8px/1 ui-monospace, monospace; }.preset-grid h3 { margin: 45px 0 14px; font: 500 31px/1 Georgia, serif; }.preset-grid p { margin: 0 0 28px; font-size: 12px; line-height: 1.65; }.preset-grid .button { margin-top: auto; }
.school-editorial .split-heading > div:last-child { color: var(--muted); line-height: 1.7; }
.school-lesson-head { display: grid; grid-template-columns: 110px minmax(0, 1fr) 190px; gap: 40px; align-items: center; }.lesson-version { display: grid; gap: 10px; align-self: stretch; align-content: center; padding-left: 25px; border-left: 1px solid rgba(255,255,255,.2); }.lesson-version span { color: var(--lime); font: 900 8px/1 ui-monospace, monospace; }.lesson-version strong, .lesson-version a { color: white; font-size: 9px; }
.lesson-article { max-width: 900px; }.breadcrumbs { display: flex; flex-wrap: wrap; gap: 9px; margin-bottom: 50px; color: var(--muted); font-size: 10px; }.answer-first { margin-bottom: 45px; padding: 37px; background: var(--lime); border: 2px solid var(--ink); box-shadow: 7px 7px 0 var(--ink); }.answer-first > span, .exercise-board > span, .next-lessons > span { font: 900 8px/1 ui-monospace, monospace; letter-spacing: .1em; }.answer-first h2 { margin: 20px 0 14px; font: 500 37px/1.08 Georgia, serif; }.answer-first p { margin: 0; line-height: 1.7; }
.dependency-note { margin-bottom: 50px; padding: 20px 24px; border-left: 5px solid var(--blue); background: #eef6ff; }.dependency-note p { margin: 7px 0 0; font-size: 11px; }.lesson-prose h2, .source-list h2, .exercise-board h2, .criteria-grid h2, .review-log h2 { margin: 58px 0 20px; font: 500 38px/1.08 Georgia, serif; }.lesson-prose p, .source-list p { color: #464b61; font-size: 16px; line-height: 1.85; }.exercise-board { margin: 60px 0; padding: 40px; color: white; background: var(--board); border: 10px solid #b7844f; box-shadow: 8px 8px 0 var(--ink); }.exercise-board > span { color: var(--lime); }.exercise-board h2 { margin-top: 18px; }.exercise-board p { line-height: 1.75; }
.criteria-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }.criteria-grid section { padding: 30px; border: 1.5px solid var(--ink); background: var(--paper); }.criteria-grid h2 { margin-top: 0; font-size: 29px; }.criteria-grid li { margin: 12px 0; font-size: 12px; line-height: 1.6; }
.copy-block { margin: 60px 0; border: 2px solid var(--ink); box-shadow: 7px 7px 0 var(--blue); }.copy-block > div { display: flex; align-items: center; justify-content: space-between; padding: 14px 18px; color: white; background: var(--ink); font: 900 8px/1 ui-monospace, monospace; letter-spacing: .08em; }.copy-block button { padding: 7px 10px; color: var(--ink); background: var(--lime); border: 1px solid var(--ink); font-size: 9px; font-weight: 850; cursor: pointer; }.copy-block pre { max-height: 560px; overflow: auto; margin: 0; padding: 28px; color: #effff9; background: var(--board); font: 500 11px/1.65 ui-monospace, monospace; white-space: pre-wrap; word-break: break-word; }
.source-list ol { padding: 0; list-style: none; border-top: 1px solid var(--line); }.source-list li { padding: 18px 0; border-bottom: 1px solid var(--line); font-size: 12px; font-weight: 750; }.next-lessons { display: grid; gap: 12px; margin-top: 65px; }.next-lessons > span { color: var(--blue); }.next-lessons > a { display: grid; grid-template-columns: 80px 1fr 25px; gap: 20px; align-items: center; padding: 20px; background: var(--paper); border: 1px solid var(--ink); text-decoration: none; }.next-lessons small { font: 800 9px/1 ui-monospace, monospace; }.next-lessons strong { font: 500 21px/1 Georgia, serif; }
.compose-presets { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-bottom: 35px; }.compose-presets strong { margin-right: 10px; font: 500 22px/1 Georgia, serif; }.compose-presets a { padding: 9px 12px; background: var(--lime); border: 1px solid var(--ink); border-radius: 999px; font-size: 10px; font-weight: 850; text-decoration: none; }
.compose-layout { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 70px; align-items: start; }.compose-form h2 { margin: 0 0 35px; font: 500 36px/1 Georgia, serif; }.field select { width: 100%; padding: 14px; color: var(--ink); background: var(--paper-bright); border: 1.5px solid var(--ink); border-radius: 9px; }.field ul { padding: 0; list-style: none; }.field ul li { margin: 8px 0; }.field ul label { display: flex; align-items: flex-start; gap: 9px; font-weight: 650; }.field ul input { width: auto; margin-top: 2px; }.conflict-box { padding: 22px; color: var(--ink); background: #ffd7d1; border: 2px solid var(--ink); }.conflict-box p { font-size: 11px; }.pack-output { box-shadow: 8px 8px 0 #10152d; }.pack-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 30px; }
.freshness-table { overflow-x: auto; border: 1.5px solid var(--ink); box-shadow: 7px 7px 0 var(--blue); }.freshness-table table { width: 100%; border-collapse: collapse; background: var(--paper-bright); }.freshness-table th, .freshness-table td { padding: 17px; border-bottom: 1px solid var(--line); text-align: left; font-size: 10px; line-height: 1.5; }.freshness-table th { color: white; background: var(--ink); font: 900 8px/1 ui-monospace, monospace; letter-spacing: .08em; text-transform: uppercase; }.review-log { margin-top: 70px; }.review-log article { display: grid; grid-template-columns: 100px 1fr 150px; gap: 20px; padding: 20px 0; border-top: 1px solid var(--line); }.review-log article i { font-size: 10px; font-style: normal; font-weight: 850; }.review-log article p { grid-column: 2 / 4; margin: 0; color: var(--muted); font-size: 11px; }

@media (max-width: 980px) {
  .school-card-grid { grid-template-columns: 1fr 1fr; }.preset-grid, .compose-layout { grid-template-columns: 1fr; }.compose-layout .form-aside { position: static; }.school-lesson-head { grid-template-columns: 100px 1fr; }.lesson-version { grid-column: 2; border: 0; padding: 0; }
}
@media (max-width: 700px) {
  .school-toolbar { align-items: flex-start; flex-direction: column; }.school-card-grid, .preset-grid, .criteria-grid { grid-template-columns: 1fr; }.school-card { min-height: 320px; }.school-lesson-head { grid-template-columns: 1fr; }.school-lesson-head .lesson-index { width: 80px; height: 95px; }.lesson-version { grid-column: auto; }.answer-first, .exercise-board { padding: 27px; }.lesson-prose h2, .source-list h2, .exercise-board h2, .criteria-grid h2 { font-size: 31px; }.lesson-prose p { font-size: 15px; }.review-log article { grid-template-columns: 75px 1fr; }.review-log article i, .review-log article p { grid-column: 2; }
}

/* Public manuals and transparent methods */
.manual-card-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.manual-card { min-height: 390px; display: flex; flex-direction: column; padding: 31px; background: var(--paper-bright); border: 1.5px solid var(--ink); box-shadow: 7px 7px 0 var(--ink); }
.manual-card:nth-child(2n) { background: #edf6ff; }.manual-card:last-child { background: #f1ffd0; }
.manual-card h2 { margin: 45px 0 14px; font: 500 34px/1.04 Georgia, serif; }.manual-card h2 a { text-decoration: none; }.manual-card h2 a:hover { color: var(--blue); }
.manual-card > p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.72; }
.manual-lessons { display: flex; flex-wrap: wrap; gap: 7px; margin: 25px 0; }.manual-lessons span { padding: 6px 8px; background: white; border: 1px solid var(--ink); border-radius: 999px; font: 850 8px/1 ui-monospace, monospace; }
.manual-open { margin-top: auto; padding-top: 22px; border-top: 1px dashed var(--line); font-size: 10px; font-weight: 900; }
.manual-source-band { color: white; background: var(--board); }.manual-source-band h2 { color: white; }.manual-source-band .split-heading > div:last-child { color: rgba(255,255,255,.76); line-height: 1.75; }.manual-source-band a { color: var(--lime); font-weight: 850; }.manual-source-band .fine-print { color: rgba(255,255,255,.58); }
.manual-lesson-map { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; margin: 0; padding: 0; background: var(--line); border: 1px solid var(--line); list-style: none; counter-reset: none; }.manual-lesson-map li { background: var(--paper-bright); }.manual-lesson-map a { display: grid; grid-template-columns: 72px 1fr auto; gap: 15px; align-items: center; min-height: 78px; padding: 17px 20px; text-decoration: none; }.manual-lesson-map span { color: var(--blue); font: 900 9px/1 ui-monospace, monospace; }.manual-lesson-map strong { font: 500 18px/1.12 Georgia, serif; }.manual-lesson-map i { color: var(--muted); font: 800 8px/1 ui-monospace, monospace; font-style: normal; text-transform: uppercase; }
.manual-section { padding: 10px 0 45px; border-bottom: 1px solid var(--line); }.manual-section > h2, .manual-related > h2 { margin: 50px 0 22px; font: 500 39px/1.06 Georgia, serif; }.manual-section > p { color: #464b61; font-size: 16px; line-height: 1.85; }.manual-checklist { margin: 30px 0; padding: 0; list-style: none; border-block: 1px solid var(--line); }.manual-checklist li { position: relative; padding: 16px 18px 16px 43px; border-bottom: 1px solid var(--line); font-size: 12px; line-height: 1.55; }.manual-checklist li:last-child { border-bottom: 0; }.manual-checklist li::before { content: "✓"; position: absolute; left: 16px; color: var(--blue); font-weight: 900; }
.manual-related { margin-top: 55px; }.manual-related > div { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }.manual-related a { display: grid; grid-template-columns: 1fr 25px; gap: 5px 14px; align-items: center; padding: 18px; background: var(--paper); border: 1px solid var(--ink); text-decoration: none; }.manual-related small { grid-column: 1; color: var(--blue); font: 900 8px/1 ui-monospace, monospace; }.manual-related strong { grid-column: 1; font: 500 18px/1.13 Georgia, serif; }.manual-related span { grid-column: 2; grid-row: 1 / 3; }.manual-provenance { margin-top: 55px; }

@media (max-width: 980px) {
  .manual-card-grid { grid-template-columns: 1fr; }.manual-card { min-height: 330px; }.manual-lesson-map { grid-template-columns: 1fr; }
}
@media (max-width: 700px) {
  .manual-card { min-height: 320px; padding: 25px; }.manual-card h2 { font-size: 31px; }.manual-lesson-map a { grid-template-columns: 63px 1fr; }.manual-lesson-map i { grid-column: 2; }.manual-section > h2, .manual-related > h2 { font-size: 32px; }.manual-section > p { font-size: 15px; }.manual-related > div { grid-template-columns: 1fr; }
}

/* Microcontroller project library */
.project-card-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.project-card { min-height: 410px; display: flex; flex-direction: column; padding: 32px; background: var(--paper-bright); border: 1.5px solid var(--ink); box-shadow: 7px 7px 0 var(--ink); }
.project-card:nth-child(2n) { background: var(--sky); }.project-card-top { display: flex; justify-content: space-between; gap: 18px; font: 900 8px/1 ui-monospace, monospace; letter-spacing: .08em; text-transform: uppercase; }.project-card-top i { padding: 6px 8px; color: white; background: var(--blue); font-style: normal; }
.project-card h2 { margin: 44px 0 14px; font: 500 38px/1.03 Georgia, serif; }.project-card h2 a { text-decoration: none; }.project-card > p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.75; }
.project-status-mini { display: grid; gap: 1px; margin: 28px 0; background: var(--line); border: 1px solid var(--line); }.project-status-mini > div { display: grid; grid-template-columns: 90px 1fr; gap: 15px; padding: 12px; background: rgba(255,255,255,.82); }.project-status-mini dt { font: 850 8px/1 ui-monospace, monospace; text-transform: uppercase; }.project-status-mini dd { margin: 0; color: var(--muted); font-size: 10px; font-weight: 750; text-transform: uppercase; }
.project-open { margin-top: auto; padding-top: 22px; border-top: 1px dashed var(--line); font-size: 10px; font-weight: 900; }.project-method-band { color: white; background: var(--board); }.project-method-band h2 { color: white; }.project-method-band .split-heading > div:last-child { color: rgba(255,255,255,.74); line-height: 1.75; }
.project-article { max-width: 960px; }.project-outcome { background: var(--sky); }.project-section { padding: 65px 0 25px; border-bottom: 1px solid var(--line); }.project-section-heading { display: grid; grid-template-columns: 64px 1fr; gap: 22px; align-items: start; margin-bottom: 30px; }.project-section-heading > span { color: var(--blue); font: 500 44px/1 Georgia, serif; }.project-section-heading small { color: var(--blue); font: 900 8px/1 ui-monospace, monospace; letter-spacing: .1em; text-transform: uppercase; }.project-section-heading h2 { margin: 9px 0 0; font: 500 43px/1.04 Georgia, serif; }.project-section > p { color: #464b61; line-height: 1.75; }
.truth-callout, .wiring-status { padding: 25px 28px; background: #fff0b8; border-left: 5px solid var(--coral); }.truth-callout strong, .wiring-status strong { font: 500 24px/1.1 Georgia, serif; }.truth-callout p, .wiring-status p { margin: 9px 0 0; color: var(--muted); font-size: 12px; line-height: 1.65; }
.hardware-boundary { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; margin: 0 0 32px; background: var(--line); border: 1px solid var(--line); }.hardware-boundary > div { padding: 18px; background: var(--paper-bright); }.hardware-boundary dt { color: var(--blue); font: 900 8px/1 ui-monospace, monospace; letter-spacing: .08em; text-transform: uppercase; }.hardware-boundary dd { margin: 9px 0 0; font-size: 11px; line-height: 1.55; }.hardware-boundary > div:last-child { grid-column: 1 / -1; }
.responsive-table { max-width: 100%; overflow-x: auto; border: 1.5px solid var(--ink); box-shadow: 6px 6px 0 var(--blue); }.responsive-table table { width: 100%; min-width: 720px; border-collapse: collapse; background: var(--paper-bright); }.responsive-table th, .responsive-table td { padding: 15px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; font-size: 10px; line-height: 1.55; }.responsive-table th { color: white; background: var(--ink); font: 900 8px/1.2 ui-monospace, monospace; letter-spacing: .06em; text-transform: uppercase; }.responsive-table code { font-weight: 850; }
.wiring-diagram { display: grid; gap: 13px; margin: 32px 0 20px; padding: 32px; color: white; background: var(--board); border: 9px solid #b7844f; box-shadow: 7px 7px 0 var(--ink); }.wire-row { display: grid; grid-template-columns: minmax(80px, 1fr) minmax(150px, 2fr) minmax(80px, 1fr); gap: 16px; align-items: center; }.wire-row strong, .wire-row b { padding: 10px; color: var(--ink); background: var(--paper-bright); border: 1px solid var(--ink); text-align: center; }.wire-row span { position: relative; display: grid; place-items: center; min-height: 34px; }.wire-row i { width: 100%; border-top: 3px solid var(--lime); }.wire-row small { position: absolute; padding: 3px 8px; color: var(--ink); background: var(--lime); font: 850 8px/1 ui-monospace, monospace; text-transform: uppercase; }.diagram-description { margin: 0 0 28px; font-size: 10px; }
.project-prompt { margin-bottom: 22px; }.project-prompt > div > span { max-width: calc(100% - 120px); overflow-wrap: anywhere; }.project-prompt pre { max-height: 760px; }.copy-status { min-height: 20px; margin: 0; padding: 0 18px 10px; color: var(--lime); background: var(--board); font-size: 10px; }
.project-steps { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }.project-steps li { display: grid; grid-template-columns: 55px 1fr; gap: 20px; align-items: center; padding: 18px 0; border-bottom: 1px solid var(--line); }.project-steps span { color: var(--blue); font: 500 28px/1 Georgia, serif; }.project-steps p { margin: 0; font-size: 12px; line-height: 1.65; }
.verification-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); }.verification-grid > div { min-height: 120px; display: flex; flex-direction: column; justify-content: space-between; padding: 16px; background: var(--paper-bright); }.verification-grid span { font: 850 8px/1.2 ui-monospace, monospace; text-transform: uppercase; }.verification-grid strong { color: var(--blue); font-size: 10px; line-height: 1.35; text-transform: uppercase; overflow-wrap: anywhere; }
.result-limit-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 25px; margin-top: 30px; }.result-limit-grid > div { padding: 28px; background: var(--paper-bright); border: 1px solid var(--ink); }.result-limit-grid h3 { margin: 0 0 20px; font: 500 28px/1 Georgia, serif; }.result-limit-grid ul { margin: 0; padding-left: 18px; }.result-limit-grid li { margin: 12px 0; color: var(--muted); font-size: 11px; line-height: 1.6; }
.project-source-list { display: grid; gap: 10px; }.project-source-list a { display: grid; grid-template-columns: minmax(180px, .8fr) 1.7fr 25px; gap: 18px; align-items: center; padding: 20px; background: var(--paper-bright); border: 1px solid var(--ink); text-decoration: none; }.project-source-list strong { font: 500 18px/1.15 Georgia, serif; }.project-source-list span { color: var(--muted); font-size: 10px; line-height: 1.55; }.project-source-list b { color: var(--blue); }.project-related { padding-bottom: 25px; }

@media (max-width: 1100px) {
  nav { gap: 19px; }.brand-copy small { display: none; }
}
@media (max-width: 980px) {
  .project-card-grid { grid-template-columns: 1fr; }.project-card { min-height: 340px; }.verification-grid { grid-template-columns: repeat(2, 1fr); }.verification-grid > div:last-child { grid-column: 1 / -1; }
}
@media (max-width: 700px) {
  .project-card { min-height: 330px; padding: 25px; }.project-card h2 { font-size: 32px; }.project-section { padding-top: 50px; }.project-section-heading { grid-template-columns: 45px 1fr; gap: 14px; }.project-section-heading > span { font-size: 32px; }.project-section-heading h2 { font-size: 33px; }.hardware-boundary, .result-limit-grid { grid-template-columns: 1fr; }.hardware-boundary > div:last-child { grid-column: auto; }.wiring-diagram { padding: 19px 13px; border-width: 6px; }.wire-row { grid-template-columns: minmax(58px, .8fr) minmax(100px, 1.7fr) minmax(58px, .8fr); gap: 7px; }.wire-row strong, .wire-row b { padding: 8px 4px; font-size: 9px; overflow-wrap: anywhere; }.project-prompt > div { align-items: flex-start; flex-direction: column; gap: 10px; }.project-prompt > div > span { max-width: 100%; }.project-prompt pre { padding: 20px; font-size: 10px; }.project-section .button-row { align-items: stretch; flex-direction: column; }.verification-grid { grid-template-columns: 1fr; }.verification-grid > div:last-child { grid-column: auto; }.project-source-list a { grid-template-columns: 1fr 22px; }.project-source-list span { grid-column: 1; }.project-source-list b { grid-column: 2; grid-row: 1 / 3; }.project-related > div { grid-template-columns: 1fr; }
}