:root {
  --blue-deep: #315b9b;
  --blue-mid: #6083af;
  --blue-soft: #dbe7f3;
  --blue-pale: #edf3f8;
  --cream: #fffaf5;
  --paper: #f7f5f2;
  --peach: #d2a183;
  --peach-soft: #f2ded1;
  --ink: #17243a;
  --muted: #607086;
  --line: rgba(49, 91, 155, .16);
  --white-line: rgba(255, 255, 255, .34);
  --radius-lg: 28px;
  --radius-md: 18px;
  --font: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: var(--font); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
.class-access-locked > .class-hero,
.class-access-locked > .toc-wrap,
.class-access-locked > .class-main,
.class-access-locked > .class-footer { display: none; }
.class-access-locked .nav-progress { display: none; }
.class-access-gate { min-height: 100vh; padding: 118px 20px 64px; display: grid; place-items: center; background: radial-gradient(circle at 75% 18%, rgba(255,255,255,.2), transparent 28%), linear-gradient(150deg, #315b9b 0%, #6083af 58%, #d2a183 130%); }
.access-gate-card { width: min(520px, 100%); padding: clamp(30px, 6vw, 52px); text-align: center; border: 1px solid rgba(255,255,255,.7); border-radius: 30px; background: rgba(255,250,245,.97); box-shadow: 0 28px 90px rgba(25,48,82,.24); }
.access-lock { width: 64px; height: 64px; margin: 0 auto 20px; display: grid; place-items: center; border-radius: 21px; background: var(--blue-pale); font-size: 27px; }
.access-kicker { margin: 0 0 10px; color: var(--blue-deep); font-size: 11px; font-weight: 800; letter-spacing: .16em; }
.access-gate-card h1 { margin: 0; font-size: clamp(29px, 5vw, 43px); line-height: 1.18; letter-spacing: -.05em; }
.access-description { margin: 17px auto 0; color: var(--muted); font-size: 14px; line-height: 1.7; }
.access-form { margin-top: 26px; text-align: left; }
.access-form label { display: block; margin-bottom: 8px; color: #40516a; font-size: 12px; font-weight: 800; }
.access-input-row { display: grid; grid-template-columns: 1fr auto; gap: 8px; }
.access-input-row input { min-width: 0; padding: 14px 15px; color: var(--ink); border: 1px solid rgba(49,91,155,.25); border-radius: 13px; background: #fff; outline: none; font: inherit; }
.access-input-row input:focus { border-color: var(--blue-deep); box-shadow: 0 0 0 3px rgba(49,91,155,.11); }
.access-input-row button { padding: 13px 18px; color: #fff; border: 0; border-radius: 13px; background: var(--blue-deep); cursor: pointer; font-weight: 800; }
.access-input-row button:disabled { cursor: wait; opacity: .7; }
.access-message { min-height: 20px; margin: 8px 2px 0; color: #4f8766; font-size: 12px; }
.access-message.error { color: #a84942; }
.access-expiry { margin: 13px 0 0; color: #718095; font-size: 11px; }
.access-home-link { margin-top: 25px; display: inline-block; color: var(--blue-deep); font-size: 12px; font-weight: 700; }
.class-nav { position: fixed; z-index: 100; top: 16px; left: 50%; width: min(1180px, calc(100% - 32px)); min-height: 58px; padding: 10px 14px 10px 22px; display: flex; align-items: center; justify-content: space-between; transform: translateX(-50%); color: #fff; border: 1px solid var(--white-line); border-radius: 20px; background: rgba(43, 65, 104, .68); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); }
.class-brand { font-weight: 800; letter-spacing: -.05em; }
.class-nav-links { display: flex; align-items: center; gap: 8px; font-size: 13px; }
.class-nav-links a { padding: 9px 12px; color: #edf3f8; }
.nav-progress { padding: 10px 16px; color: var(--ink); border: 0; border-radius: 999px; background: var(--cream); cursor: pointer; font-weight: 700; }
.class-hero { position: relative; isolation: isolate; overflow: hidden; color: var(--cream); background: linear-gradient(150deg, #315b9b 0%, #6083af 50%, #9eacb4 75%, #d2a183 100%); }
.class-hero::before { content: ''; position: absolute; inset: 0; z-index: -1; background: radial-gradient(circle at 75% 30%, rgba(255,255,255,.2), transparent 34%), linear-gradient(90deg, rgba(25,51,91,.2), transparent 70%); }
.hero-orb { position: absolute; border-radius: 50%; border: 1px solid rgba(255,255,255,.14); }
.hero-orb-one { width: 380px; height: 380px; right: -110px; top: -120px; background: rgba(36, 66, 105, .22); }
.hero-orb-two { width: 220px; height: 220px; left: -90px; bottom: -120px; background: rgba(255, 250, 245, .08); }
.class-hero-inner { width: min(1120px, calc(100% - 40px)); min-height: 520px; margin: 0 auto; padding: 132px 0 74px; display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(300px, .7fr); gap: clamp(36px, 7vw, 92px); align-items: center; }
.hero-kicker, .section-kicker { margin: 0 0 14px; font-size: 12px; font-weight: 800; letter-spacing: .16em; }
.hero-kicker { color: #f6d4c0; }
.hero-copy h1 { max-width: 760px; margin: 0; font-size: clamp(38px, 5.2vw, 70px); line-height: 1.08; letter-spacing: -.055em; }
.hero-subtitle { max-width: 680px; margin: 24px 0 0; color: #edf2f6; font-size: clamp(17px, 2vw, 23px); line-height: 1.65; }
.hero-meta { margin-top: 28px; display: flex; flex-wrap: wrap; gap: 10px; align-items: center; font-size: 13px; }
.hero-meta > span { padding: 8px 13px; border: 1px solid var(--white-line); border-radius: 999px; background: rgba(49, 76, 116, .24); }
.hero-status i { display: inline-block; width: 7px; height: 7px; margin-right: 7px; border-radius: 50%; background: #9ee6bd; box-shadow: 0 0 0 5px rgba(158,230,189,.14); }
.hero-panel { padding: 25px; border: 1px solid var(--white-line); border-radius: var(--radius-lg); background: rgba(46, 70, 108, .32); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); }
.hero-panel-label { margin: 0 0 14px; color: #e8eef4; font-size: 13px; }
.hero-progress-row { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
.hero-progress-row strong { font-size: 42px; letter-spacing: -.05em; }
.hero-progress-row span { color: #e1e9f0; font-size: 12px; text-align: right; }
.toc-wrap { position: sticky; top: 88px; z-index: 50; border-bottom: 1px solid var(--line); background: rgba(247,245,242,.92); backdrop-filter: blur(16px); }
.toc { width: min(1120px, calc(100% - 32px)); margin: 0 auto; padding: 12px 0; display: flex; gap: 8px; overflow-x: auto; scrollbar-width: thin; }
.toc a { flex: 0 0 auto; padding: 8px 13px; color: var(--muted); border: 1px solid transparent; border-radius: 999px; background: #fff; font-size: 12px; font-weight: 700; }
.toc a.complete { color: #386b50; border-color: #b9dcc7; background: #edf8f1; }
.class-main { width: min(1120px, calc(100% - 40px)); margin: 0 auto; padding: 72px 0 100px; }
.class-intro, .download-hub { margin-bottom: 66px; padding: clamp(26px, 4vw, 46px); border: 1px solid var(--line); border-radius: var(--radius-lg); background: #fff; }
.class-intro { display: grid; grid-template-columns: .8fr 1.2fr; gap: 42px; align-items: center; }
.section-kicker { color: var(--blue-deep); }
.class-intro h2, .download-hub h2, .parts-heading h2 { margin: 0; font-size: clamp(25px, 3vw, 38px); line-height: 1.25; letter-spacing: -.04em; }
.guide-steps { margin: 0; padding: 0; list-style: none; display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.guide-steps li { padding: 16px; color: var(--muted); border-radius: 16px; background: var(--blue-pale); font-size: 14px; }
.guide-steps span { display: block; margin-bottom: 5px; color: var(--blue-deep); font-size: 11px; font-weight: 800; }
.download-hub { background: linear-gradient(135deg, #fff 0%, #f6eee8 100%); }
.download-hub-heading > p:last-child { max-width: 620px; color: var(--muted); line-height: 1.65; }
.download-grid { margin-top: 25px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.download-card { min-height: 108px; padding: 18px; display: flex; align-items: center; justify-content: space-between; gap: 16px; border: 1px solid var(--line); border-radius: var(--radius-md); background: rgba(255,255,255,.82); transition: transform .2s ease, border-color .2s ease; }
.download-card:hover { transform: translateY(-3px); border-color: rgba(49,91,155,.38); }
.download-card-link { min-width: 0; flex: 1; display: flex; align-items: center; justify-content: space-between; gap: 14px; }
.download-card strong { display: block; margin-bottom: 4px; }
.download-card small { color: var(--muted); line-height: 1.5; }
.download-copy-btn { flex: 0 0 auto; padding: 9px 11px; color: var(--blue-deep); border: 1px solid rgba(49,91,155,.28); border-radius: 10px; background: var(--blue-pale); cursor: pointer; font-size: 11px; font-weight: 800; }
.download-copy-btn:hover { color: #fff; background: var(--blue-deep); }
.download-copy-btn.copied { color: #fff; background: #4f8766; }
.download-copy-btn:disabled { cursor: wait; opacity: .7; }
.file-type { flex: 0 0 auto; min-width: 48px; padding: 9px 7px; text-align: center; color: #fff; border-radius: 12px; background: var(--blue-deep); font-size: 11px; font-weight: 800; }
.file-type.drive { color: var(--ink); background: var(--peach-soft); }
.parts-heading { margin-bottom: 25px; display: flex; justify-content: space-between; align-items: end; gap: 25px; }
.parts-heading > p { max-width: 360px; margin: 0; color: var(--muted); font-size: 14px; text-align: right; }
.parts-list { display: grid; gap: 18px; }
.class-part { scroll-margin-top: 160px; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-lg); background: #fff; box-shadow: 0 1px 0 rgba(49,91,155,.03); transition: border-color .25s ease; }
.class-part.is-complete { border-color: #aad2bb; }
.part-head { padding: 26px clamp(22px, 4vw, 36px); display: grid; grid-template-columns: 68px 1fr auto; gap: 22px; align-items: start; cursor: pointer; }
.part-number { width: 64px; height: 64px; display: grid; place-items: center; color: #fff; border-radius: 20px; background: linear-gradient(145deg, var(--blue-deep), var(--blue-mid)); font-size: 12px; font-weight: 800; text-align: center; }
.is-complete .part-number { background: #4f8766; }
.part-kicker { margin: 0 0 7px; color: var(--blue-deep); font-size: 11px; font-weight: 800; letter-spacing: .12em; }
.part-title { margin: 0; font-size: clamp(20px, 2.5vw, 28px); letter-spacing: -.035em; }
.part-summary { margin: 10px 0 0; color: var(--muted); font-size: 14px; line-height: 1.7; }
.part-toggle { width: 38px; height: 38px; display: grid; place-items: center; color: var(--blue-deep); border: 1px solid var(--line); border-radius: 50%; background: var(--blue-pale); font-size: 19px; transition: transform .2s ease; }
.class-part.open .part-toggle { transform: rotate(45deg); }
.part-body { display: none; padding: 0 clamp(22px, 4vw, 36px) 32px; }
.class-part.open .part-body { display: block; }
.part-body-inner { padding-top: 26px; border-top: 1px solid var(--line); }
.part-block + .part-block { margin-top: 26px; }
.part-block-title { margin: 0 0 12px; font-size: 13px; font-weight: 800; }
.guide-card-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.guide-card { padding: 18px; border: 1px solid var(--line); border-radius: var(--radius-md); background: linear-gradient(145deg, #fff, #f5f8fb); }
.guide-card h5 { margin: 0 0 8px; color: var(--blue-deep); font-size: 15px; }
.guide-card > p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.65; }
.guide-example { margin: 14px 0 0; padding: 12px 14px; color: #285f42; border-radius: 11px; background: #f1f8f3; font-size: 12px; line-height: 1.65; }
.guide-point { margin-top: 10px !important; padding-left: 10px; color: #40516a !important; border-left: 2px solid var(--blue-deep); font-size: 12px !important; }
.guide-keywords { margin-top: 14px; display: flex; flex-wrap: wrap; gap: 7px; }
.guide-keywords span { padding: 7px 10px; color: #7a4b34; border-radius: 999px; background: var(--peach-soft); font-size: 12px; font-weight: 700; }
.guide-steps { margin: 14px 0 0; padding: 0; list-style: none; counter-reset: guide-step; display: grid; gap: 8px; }
.guide-steps li { counter-increment: guide-step; display: grid; grid-template-columns: 24px 1fr; gap: 9px; align-items: start; color: #40516a; font-size: 12px; line-height: 1.55; }
.guide-steps li::before { content: counter(guide-step); width: 22px; height: 22px; display: grid; place-items: center; color: #fff; border-radius: 50%; background: var(--blue-deep); font-size: 10px; font-weight: 800; }
.part-slide-block { margin-top: 4px; }
.slide-modules { display: grid; gap: 34px; }
.slide-module { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-lg); background: #f5f1eb; box-shadow: 0 16px 38px rgba(41,68,104,.08); }
.slide-module-head { padding: 18px 20px; display: grid; grid-template-columns: auto 1fr; gap: 12px; align-items: start; border-bottom: 1px solid rgba(49,91,155,.12); background: #fff; }
.slide-module-head > span { padding: 6px 9px; color: #fff; border-radius: 999px; background: var(--blue-deep); font-size: 10px; font-weight: 800; letter-spacing: .08em; }
.slide-module-head h5 { margin: 0 0 4px; color: var(--blue-deep); font-size: clamp(16px,2vw,20px); }
.slide-module-head p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.6; }
.lesson-slide-gallery { padding: clamp(10px,2vw,18px); display: grid; gap: 16px; }
.lesson-slide { margin: 0; overflow: hidden; border: 1px solid rgba(37,62,89,.14); border-radius: 14px; background: #fff; box-shadow: 0 10px 24px rgba(30,48,70,.08); }
.lesson-slide img { width: 100%; height: auto; display: block; aspect-ratio: 16 / 9; object-fit: contain; background: #f8f4ee; }
.lesson-slide figcaption { padding: 9px 12px; color: var(--muted); border-top: 1px solid var(--line); background: #fff; font-size: 11px; line-height: 1.5; }
.slide-module-notes { padding: clamp(18px,3vw,28px); border-top: 1px solid rgba(49,91,155,.14); background: #fff; }
.slide-module-notes > h6 { margin: 0 0 14px; color: #7a4b34; font-size: 12px; letter-spacing: .03em; }
.slide-module-notes .guide-card-grid { margin-top: 0; }
.slide-module-notes .learning-chapters { gap: 14px; }
.slide-module-notes .learning-chapter { box-shadow: none; }
.slide-prompt-grid { margin-top: 14px; }
.learning-chapters { display: grid; gap: 18px; }
.chapter-mini-nav { position: sticky; top: 150px; z-index: 4; padding: 10px; display: flex; gap: 7px; overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius-md); background: rgba(255,255,255,.94); box-shadow: 0 10px 24px rgba(41,68,104,.08); backdrop-filter: blur(10px); }
.chapter-mini-nav a { flex: none; padding: 8px 11px; color: var(--blue-deep); border-radius: 999px; background: var(--blue-pale); font-size: 11px; font-weight: 750; }
.chapter-progress { padding: 16px 18px; border-radius: var(--radius-md); color: #fff; background: #18304e; }
.chapter-progress-row { margin-bottom: 10px; display: flex; justify-content: space-between; gap: 12px; font-size: 12px; }
.chapter-progress-row span { color: #bdd0e2; }
.chapter-progress-track { height: 6px; overflow: hidden; border-radius: 999px; background: rgba(255,255,255,.16); }
.chapter-progress-track i { height: 100%; display: block; border-radius: inherit; background: linear-gradient(90deg, #79a8d8, #efb99e); transition: width .25s ease; }
.learning-chapter { padding: clamp(18px, 3vw, 28px); border: 1px solid var(--line); border-radius: var(--radius-lg); background: #fff; box-shadow: 0 12px 30px rgba(41, 68, 104, .06); }
.learning-chapter-head { display: grid; grid-template-columns: auto 1fr; gap: 14px; align-items: start; margin-bottom: 18px; }
.learning-chapter-head > span { padding: 7px 10px; color: #fff; border-radius: 999px; background: var(--blue-deep); font-size: 11px; font-weight: 800; letter-spacing: .08em; }
.learning-chapter-head h5 { margin: 1px 0 5px; color: var(--blue-deep); font-size: clamp(17px, 2vw, 22px); }
.learning-chapter-head p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.65; }
.chapter-card-grid { margin-top: 0; }
.chapter-card-grid .guide-card { background: linear-gradient(145deg, #f9fbfd, #f1f6fb); }
.prompt-comparison { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 14px; }
.comparison-card { padding: 16px; border-radius: var(--radius-md); border: 1px solid #f0c7c2; background: #fff7f6; }
.comparison-card.good { border-color: #bcdac9; background: #f3fbf6; }
.comparison-card > strong { color: #a84942; font-size: 13px; }
.comparison-card.good > strong { color: #25734a; }
.comparison-card blockquote { margin: 10px 0; color: #26384d; font-size: 13px; line-height: 1.7; }
.comparison-card p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.55; }
.assembled-prompt { margin-top: 14px; padding: 17px; border-radius: var(--radius-md); color: #eaf4ff; background: #18304e; }
.assembled-prompt > strong { display: block; margin-bottom: 10px; font-size: 13px; }
.assembled-prompt pre { margin: 0; white-space: pre-wrap; font: inherit; font-size: 12px; line-height: 1.7; }
.chapter-callout { margin: 14px 0 0; padding: 13px 15px; color: #285f42; border-left: 3px solid #4f8766; border-radius: 0 12px 12px 0; background: #f1f8f3; font-size: 12px; line-height: 1.65; }
.chapter-checklist { margin: 14px 0 0; padding: 14px 16px; display: grid; gap: 8px; list-style: none; border-radius: var(--radius-md); background: var(--blue-pale); }
.chapter-checklist-head { padding-bottom: 9px; display: flex; justify-content: space-between; gap: 10px; color: var(--blue-deep); border-bottom: 1px solid var(--line); font-size: 12px; }
.chapter-checklist-head span { color: var(--muted); font-weight: 700; }
.chapter-checklist label { display: grid; grid-template-columns: 18px 1fr; gap: 9px; align-items: start; color: #40516a; font-size: 12px; line-height: 1.55; cursor: pointer; }
.chapter-checklist input { margin-top: 2px; accent-color: var(--blue-deep); }
.chapter-checklist input:checked + span { color: #8895a5; text-decoration: line-through; }
.chapter-quiz { margin-top: 14px; padding: 14px 16px; border: 1px solid var(--line); border-radius: var(--radius-md); background: #fbfcfd; }
.chapter-quiz > strong { color: var(--blue-deep); font-size: 13px; }
.chapter-quiz > p { margin: 10px 0; color: #40516a; font-size: 12px; line-height: 1.6; }
.quiz-options { display: grid; gap: 7px; }
.quiz-option { width: 100%; padding: 10px 12px; color: #40516a; text-align: left; border: 1px solid var(--line); border-radius: 10px; background: #fff; cursor: pointer; font: inherit; font-size: 12px; }
.quiz-option:hover, .quiz-option.selected { color: var(--blue-deep); border-color: #79a8d8; background: var(--blue-pale); }
.quiz-option.correct { color: #285f42; border-color: #75aa88; background: #eef8f1; }
.quiz-option.wrong { color: #94463f; border-color: #d99690; background: #fff2f1; }
.quiz-submit { margin-top: 10px; padding: 9px 13px; color: #fff; border: 0; border-radius: 10px; background: var(--blue-deep); cursor: pointer; font-size: 12px; font-weight: 800; }
.chapter-quiz p { margin: 8px 0 0; color: var(--muted); font-size: 12px; line-height: 1.6; }
.task-list { margin: 0; padding: 0; list-style: none; display: grid; gap: 8px; }
.task-list label { padding: 12px 14px; display: flex; align-items: flex-start; gap: 10px; color: #40516a; border-radius: 13px; background: var(--blue-pale); font-size: 14px; line-height: 1.55; cursor: pointer; }
.task-list input { margin-top: 4px; accent-color: var(--blue-deep); }
.resource-list, .tool-list { display: flex; flex-wrap: wrap; gap: 8px; }
.resource-link, .tool-link { padding: 10px 13px; display: inline-flex; align-items: center; gap: 7px; border: 1px solid var(--line); border-radius: 999px; color: var(--blue-deep); background: #fff; font-size: 12px; font-weight: 700; }
.resource-link::after, .tool-link::after { content: '↗'; font-size: 11px; }
.resource-link.download::after { content: '↓'; }
.prompt-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.prompt-card { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-md); background: #fbfcfd; }
.prompt-card-head { padding: 14px 15px 0; display: flex; flex-wrap: wrap; gap: 6px; }
.prompt-category, .prompt-tool { padding: 4px 8px; border-radius: 999px; color: var(--blue-deep); background: var(--blue-soft); font-size: 10px; font-weight: 700; }
.prompt-tool { color: #7a4b34; background: var(--peach-soft); }
.prompt-title { margin: 11px 15px 8px; font-size: 15px; }
.prompt-body { max-height: 210px; margin: 0 15px 12px; padding: 13px; overflow-y: auto; white-space: pre-wrap; color: #3f4f64; border: 1px solid var(--line); border-radius: 12px; background: #fff; font-family: var(--font); font-size: 12px; line-height: 1.65; }
.copy-btn { width: 100%; padding: 13px; color: #fff; border: 0; background: var(--blue-deep); cursor: pointer; font-size: 13px; font-weight: 800; }
.copy-btn.copied { background: #4f8766; }
.class-footer { padding: 44px max(24px, calc((100% - 1120px) / 2)); display: flex; justify-content: space-between; gap: 24px; color: #eaf0f5; background: #294d82; }
.class-footer strong { font-size: 18px; }
.class-footer p { margin: 7px 0 0; color: #cbd8e5; font-size: 13px; }
.class-footer-links { display: flex; gap: 18px; align-items: center; font-size: 13px; }
@media (max-width: 820px) {
  .class-nav-links > a { display: none; }
  .class-hero-inner { min-height: auto; padding-top: 116px; grid-template-columns: 1fr; }
  .hero-panel { max-width: 520px; }
  .toc-wrap { top: 86px; }
  .class-intro { grid-template-columns: 1fr; }
  .download-grid, .prompt-grid, .guide-card-grid, .prompt-comparison { grid-template-columns: 1fr; }
  .part-head { grid-template-columns: 52px 1fr auto; gap: 14px; }
  .part-number { width: 52px; height: 52px; border-radius: 16px; }
}
@media (max-width: 560px) {
  .class-nav { top: 10px; width: calc(100% - 20px); }
  .nav-progress { padding: 9px 12px; }
  .class-hero-inner, .class-main { width: calc(100% - 28px); }
  .class-hero-inner { padding-bottom: 52px; }
  .hero-copy h1 { font-size: 37px; }
  .hero-subtitle { font-size: 16px; }
  .class-main { padding-top: 48px; }
  .class-intro, .download-hub { margin-bottom: 48px; padding: 23px 18px; border-radius: 22px; }
  .download-card { align-items: stretch; flex-direction: column; }
  .download-copy-btn { width: 100%; }
  .guide-steps { grid-template-columns: 1fr; }
  .slide-modules { gap: 24px; }
  .slide-module { border-radius: 20px; }
  .slide-module-head { padding: 16px; grid-template-columns: 1fr; }
  .slide-module-head > span { justify-self: start; }
  .lesson-slide-gallery { padding: 8px; gap: 10px; }
  .lesson-slide { border-radius: 10px; }
  .slide-module-notes { padding: 17px 13px; }
  .parts-heading { align-items: start; flex-direction: column; }
  .parts-heading > p { text-align: left; }
  .part-head { padding: 20px 16px; grid-template-columns: 45px 1fr 32px; gap: 11px; }
  .part-number { width: 45px; height: 45px; border-radius: 14px; font-size: 10px; }
  .part-toggle { width: 32px; height: 32px; }
  .part-body { padding: 0 16px 22px; }
  .class-access-gate { padding: 96px 14px 32px; }
  .access-gate-card { padding: 30px 20px; border-radius: 24px; }
  .access-input-row { grid-template-columns: 1fr; }
  .class-footer { flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition: none !important; } }