@import url('https://fonts.googleapis.com/css2?family=DM+Mono:wght@400;500&family=Space+Grotesk:wght@400;500;600;700&display=swap');

:root {
  color-scheme: light;
  --ink: #08172d;
  --navy: #0d203c;
  --navy-soft: #152b4a;
  --paper: #f4f2eb;
  --paper-bright: #fbfaf5;
  --muted: #6d7480;
  --line: rgba(8, 23, 45, .16);
  --acid: #d9fa62;
  --acid-deep: #c7ec47;
  --white: #fff;
  --mono: "DM Mono", monospace;
  --sans: "Space Grotesk", "Arial", sans-serif;
  --wrap: 1200px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 86px; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: var(--sans); -webkit-font-smoothing: antialiased; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { color: inherit; font: inherit; }
::selection { color: var(--ink); background: var(--acid); }
.page-wrap { width: min(var(--wrap), calc(100% - 64px)); margin: 0 auto; }
.skip-link { position: absolute; z-index: 30; top: 8px; left: 8px; padding: 12px 16px; color: var(--ink); background: var(--acid); transform: translateY(-150%); }
.skip-link:focus { transform: translateY(0); }

.topline { min-height: 32px; display: flex; align-items: center; justify-content: center; gap: 12px; padding: 6px 18px; color: var(--paper); background: var(--ink); font: 10px/1.3 var(--mono); letter-spacing: .095em; text-align: center; }
.topline b { color: var(--acid); }
.topline-dot, .live-dot { width: 5px; height: 5px; border-radius: 50%; background: var(--acid); box-shadow: 0 0 10px rgba(217,250,98,.7); }
.site-header { z-index: 20; position: sticky; top: 0; min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 26px; padding: 0 max(32px, calc((100% - var(--wrap)) / 2)); background: rgba(244,242,235,.94); border-bottom: 1px solid var(--line); backdrop-filter: blur(14px); }
.brand { display: inline-flex; flex: 0 0 auto; align-items: center; gap: 11px; }
.brand-icon { width: 42px; height: 42px; object-fit: cover; background: #fff; border: 1px solid rgba(8,23,45,.14); border-radius: 50%; }
.brand-name { font-size: 22px; font-weight: 700; letter-spacing: -.075em; }
.brand-name span { color: #839e24; }
.main-nav { display: flex; align-items: center; gap: clamp(20px, 3.2vw, 45px); margin-left: auto; }
.main-nav a { position: relative; padding: 10px 0; color: #333d4d; font-size: 13px; font-weight: 600; transition: color .2s ease; }
.main-nav a::after { position: absolute; right: 0; bottom: 5px; left: 0; height: 2px; background: var(--acid-deep); content: ""; transform: scaleX(0); transform-origin: right; transition: transform .25s ease; }
.main-nav a:hover { color: var(--ink); }
.main-nav a:hover::after { transform: scaleX(1); transform-origin: left; }
.button { min-height: 52px; display: inline-flex; align-items: center; justify-content: center; gap: 20px; padding: 0 21px; border: 1px solid transparent; font-size: 13px; font-weight: 700; transition: transform .2s ease, background .2s ease, color .2s ease; }
.button:hover { transform: translateY(-2px); }
.button span { font-size: 17px; }
.button-small { min-height: 42px; padding: 0 16px; gap: 13px; font-size: 12px; }
.button-dark { color: var(--paper-bright); background: var(--ink); }
.button-dark:hover { background: #233a5b; }
.button-accent { color: var(--ink); background: var(--acid); }
.button-accent:hover { background: #e6ff88; }
.button-outline { color: var(--paper); border-color: rgba(255,255,255,.38); }
.button-outline:hover { color: var(--ink); background: var(--paper); }
.menu-toggle { display: none; }

.hero { min-height: 630px; display: grid; grid-template-columns: 1.08fr .92fr; align-items: center; gap: 46px; padding-top: 76px; padding-bottom: 82px; }
.hero-copy { position: relative; z-index: 2; }
.eyebrow { display: flex; align-items: center; gap: 10px; margin: 0 0 24px; font: 10px/1.4 var(--mono); letter-spacing: .11em; }
.eyebrow-mark { color: #708d13; font-size: 17px; }
.eyebrow-slash { color: #999e9c; }
.eyebrow > span:first-child:not(.eyebrow-mark) { color: #80963e; }
h1, h2, h3, h4, p { margin-top: 0; }
.hero h1 { max-width: 720px; margin: 0; font-size: clamp(58px, 7.15vw, 96px); line-height: .99; letter-spacing: -.085em; }
.hero h1 em, .section-heading h2 em, .lessons-intro h2 em, .about-copy h2 em { color: #81983a; font-style: normal; }
.hero-lede { max-width: 490px; margin: 27px 0 29px; color: #485465; font-size: 17px; line-height: 1.7; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 24px; }
.text-link { display: inline-flex; align-items: center; gap: 10px; border-bottom: 1px solid #8b9292; padding: 8px 0; font-size: 13px; font-weight: 700; transition: gap .2s ease, color .2s ease; }
.text-link:hover { gap: 15px; color: #758a2f; }
.text-link span, .quiet-link span { font-size: 16px; }
.hero-footnote { display: flex; align-items: center; gap: 9px; margin-top: 37px; color: var(--muted); font: 10px/1.5 var(--mono); letter-spacing: .01em; }
.tiny-check { width: 17px; height: 17px; display: inline-grid; place-items: center; color: var(--ink); background: var(--acid); border-radius: 50%; font: 11px var(--sans); }
.hero-visual { min-height: 430px; position: relative; display: flex; align-items: center; justify-content: center; isolation: isolate; }
.hero-visual::before { z-index: -1; position: absolute; top: 6%; right: -4%; width: 85%; height: 84%; background: radial-gradient(ellipse, rgba(217,250,98,.46), rgba(217,250,98,0) 68%); content: ""; }
.hero-visual-top { z-index: 2; position: absolute; top: 38px; left: 8px; display: flex; align-items: center; gap: 9px; color: #697366; font: 9px var(--mono); letter-spacing: .085em; }
.visual-counter { margin-left: 35px; color: #959d94; }
.code-card { z-index: 1; position: relative; width: min(100%, 485px); margin: 26px 4px 0 18px; padding: 0 0 21px; color: #eaf0eb; background: linear-gradient(135deg, #0b1c34, #112a49); box-shadow: 0 34px 60px rgba(23,44,65,.22); transform: rotate(-2.5deg); }
.code-card::before { position: absolute; inset: 10px -10px -10px 10px; z-index: -1; border: 1px solid #91a155; content: ""; }
.code-card-bar { height: 49px; display: flex; align-items: center; gap: 13px; padding: 0 18px; border-bottom: 1px solid rgba(255,255,255,.1); color: #a5b1bd; font: 10px var(--mono); }
.window-dots { display: flex; gap: 5px; }
.window-dots i { width: 6px; height: 6px; display: block; background: #ec7666; border-radius: 50%; }
.window-dots i:nth-child(2) { background: #eed45d; }
.window-dots i:nth-child(3) { background: #91c87c; }
.code-tag { margin-left: auto; padding: 4px 7px; color: var(--acid); border: 1px solid rgba(217,250,98,.45); font-size: 8px; }
.code-lines { padding: 34px 25px 31px; overflow: hidden; }
.code-lines p { margin: 0 0 17px; white-space: nowrap; font: 13px/1.5 var(--mono); letter-spacing: -.03em; }
.code-lines p:last-child { margin-bottom: 0; }
.code-muted { display: inline-block; width: 26px; color: #677e93; }
.code-purple { color: #c7a5ff; }
.code-green { color: #c3ea7d; }
.code-yellow { color: #f2d56b; }
.code-white { color: #e9eced; }
.code-card-bottom { display: flex; justify-content: space-between; gap: 12px; padding: 14px 21px 0; border-top: 1px solid rgba(255,255,255,.1); color: #aebbc5; font: 9px var(--mono); }
.code-card-bottom b { margin-right: 5px; color: var(--acid); }
.orbit { z-index: -1; position: absolute; border: 1px solid rgba(107,133,62,.32); border-radius: 50%; transform: rotate(-21deg); }
.orbit-one { top: 8%; right: 0; width: 340px; height: 180px; }
.orbit-two { top: 22%; right: -5%; width: 425px; height: 255px; }
.hero-sticker { position: absolute; right: 3%; bottom: 10%; width: 102px; height: 102px; display: flex; align-items: center; justify-content: center; gap: 5px; color: var(--ink); background: var(--acid); border: 5px solid var(--paper); border-radius: 50%; box-shadow: 0 10px 25px rgba(8,23,45,.18); transform: rotate(9deg); }
.hero-sticker strong { font-size: 34px; letter-spacing: -.08em; }
.hero-sticker span { font: 8px/1.3 var(--mono); letter-spacing: .04em; }
.hero-visual-caption { position: absolute; bottom: -1px; left: 20px; margin: 0; color: #657064; font: 10px/1.55 var(--mono); }
.hero-visual-caption strong { color: var(--ink); font-weight: 500; }

.ticker { overflow: hidden; color: var(--ink); background: var(--acid); }
.ticker-inner { min-height: 59px; display: flex; align-items: center; justify-content: center; gap: clamp(20px, 4vw, 64px); padding: 8px 22px; white-space: nowrap; font: 10px var(--mono); letter-spacing: .1em; }
.ticker-inner b { font-size: 15px; }

.section-dark { color: var(--paper-bright); background: var(--ink); }
.featured { padding: 108px 0 102px; }
.featured-wrap { display: grid; grid-template-columns: .72fr 1.28fr; align-items: center; gap: clamp(48px, 8vw, 120px); }
.eyebrow-light { color: #c3cfcc; }
.eyebrow-light > span:first-child { color: var(--acid); }
.section-heading h2, .lessons-intro h2, .about-copy h2 { margin: 0; font-size: clamp(44px, 5vw, 67px); line-height: 1.02; letter-spacing: -.075em; }
.section-heading h2 em { color: var(--acid); }
.section-intro { max-width: 370px; margin: 23px 0 26px; color: #b0bac4; font-size: 15px; line-height: 1.75; }
.featured-player-wrap { min-width: 0; }
.featured-player { position: relative; width: 100%; overflow: hidden; background: #0a1220; border: 1px solid rgba(255,255,255,.17); box-shadow: 0 22px 55px rgba(0,0,0,.28); aspect-ratio: 16 / 9; }
.featured-player::after { position: absolute; z-index: 1; inset: 0; border: 1px solid rgba(255,255,255,.06); pointer-events: none; content: ""; }
.featured-player iframe { width: 100%; height: 100%; border: 0; }
.video-poster { z-index: 2; position: absolute; inset: 0; width: 100%; height: 100%; display: grid; place-items: center; overflow: hidden; padding: 0; color: var(--ink); background: #0a1220; border: 0; cursor: pointer; }
.video-poster::after { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(4,13,27,.08), rgba(4,13,27,.12) 50%, rgba(4,13,27,.68)); content: ""; }
.video-poster img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s ease; }
.video-poster:hover img { transform: scale(1.025); }
.video-poster:focus-visible { outline: 3px solid var(--acid); outline-offset: -5px; }
.poster-play { z-index: 1; position: absolute; width: 72px; height: 72px; display: grid; place-items: center; padding-left: 5px; color: var(--ink); background: var(--acid); border-radius: 50%; box-shadow: 0 8px 28px rgba(0,0,0,.32); font-size: 20px; transition: transform .2s ease; }
.video-poster:hover .poster-play { transform: scale(1.08); }
.poster-label { z-index: 1; position: absolute; bottom: 18px; left: 18px; padding: 8px 11px; color: var(--acid); background: rgba(5,15,29,.72); font: 9px var(--mono); letter-spacing: .1em; }
.player-meta { display: flex; justify-content: space-between; gap: 18px; margin-top: 19px; color: #94a0ad; font: 9px var(--mono); letter-spacing: .07em; }
.player-meta b { color: var(--acid); }
.player-label { display: flex; align-items: center; gap: 8px; color: var(--acid); }
.player-label i { width: 6px; height: 6px; background: var(--acid); border-radius: 50%; }
.player-title { margin: 12px 0 10px; font-size: 20px; line-height: 1.3; letter-spacing: -.045em; }
.quiet-link { display: inline-flex; align-items: center; gap: 8px; color: #b5c1cb; font-size: 12px; transition: color .2s ease, gap .2s ease; }
.quiet-link:hover { gap: 12px; color: var(--acid); }

.section-light { background: var(--paper-bright); }
.lessons { padding: 110px 0 104px; }
.lessons-intro { display: flex; align-items: end; justify-content: space-between; gap: 40px; margin-bottom: 64px; }
.lessons-intro > p { max-width: 360px; margin: 0 0 4px; color: #596272; font-size: 14px; line-height: 1.75; }
.lessons-intro h2 em { color: #7b9136; }
.topic-block { padding: 36px 0 51px; border-top: 1px solid var(--line); }
.topic-heading { display: flex; align-items: end; justify-content: space-between; gap: 26px; margin-bottom: 28px; }
.topic-index { display: block; margin-bottom: 7px; color: #7c8e4a; font: 9px var(--mono); letter-spacing: .11em; }
.topic-heading h3 { margin: 0 0 7px; font-size: 24px; letter-spacing: -.055em; }
.topic-heading p { margin: 0; color: #737987; font-size: 12px; line-height: 1.5; }
.topic-link { display: inline-flex; flex: 0 0 auto; align-items: center; gap: 10px; margin-bottom: 2px; color: #29384b; font-size: 11px; font-weight: 700; transition: gap .2s ease, color .2s ease; }
.topic-link:hover { gap: 15px; color: #728b29; }
.video-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.video-card { position: relative; min-width: 0; padding-bottom: 25px; border-bottom: 1px solid var(--line); }
.video-thumb { position: relative; overflow: hidden; background: #102541; aspect-ratio: 16 / 9; }
.video-thumb::after { position: absolute; inset: 0; background: linear-gradient(180deg, transparent 58%, rgba(4,13,27,.4)); content: ""; }
.video-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s cubic-bezier(.2,.7,.2,1); }
.video-card:hover .video-thumb img { transform: scale(1.045); }
.play-mark { z-index: 2; position: absolute; top: 50%; left: 50%; width: 46px; height: 46px; display: grid; place-items: center; padding-left: 3px; color: var(--ink); background: var(--acid); border-radius: 50%; box-shadow: 0 3px 20px rgba(0,0,0,.16); font-size: 12px; transform: translate(-50%,-50%) scale(.85); opacity: 0; transition: transform .25s ease, opacity .25s ease; }
.video-card:hover .play-mark, .video-card:focus-visible .play-mark { transform: translate(-50%,-50%) scale(1); opacity: 1; }
.video-duration { z-index: 2; position: absolute; right: 9px; bottom: 9px; padding: 5px 7px; color: var(--white); background: rgba(5,15,29,.8); font: 8px var(--mono); letter-spacing: .07em; }
.video-category { display: block; margin: 17px 0 8px; color: #778a36; font: 9px var(--mono); letter-spacing: .11em; }
.video-card h4 { max-width: 95%; margin: 0; font-size: 17px; line-height: 1.35; letter-spacing: -.04em; transition: color .2s ease; }
.video-card:hover h4 { color: #728b29; }
.card-arrow { position: absolute; right: 1px; bottom: 28px; color: #6e7a87; font-size: 15px; transition: transform .2s ease, color .2s ease; }
.video-card:hover .card-arrow { color: var(--ink); transform: translate(2px,-2px); }
.topic-block-last { padding-bottom: 0; }

.section-accent { background: var(--acid); }
.about { padding: 105px 0 110px; overflow: hidden; }
.about-wrap { display: grid; grid-template-columns: .8fr 1.2fr; align-items: center; gap: 8vw; }
.about-stamp { position: relative; width: min(100%, 360px); min-height: 260px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 15px; padding: 16px; color: var(--ink); background: var(--paper); box-shadow: 13px 13px 0 rgba(8,23,45,.11); transform: rotate(-3deg); }
.about-stamp::before { position: absolute; top: 16px; right: 16px; bottom: 16px; left: 16px; border: 1px solid rgba(8,23,45,.25); content: ""; }
.about-avatar { z-index: 1; width: 156px; height: 156px; object-fit: cover; background: #fff; border: 5px solid #fff; border-radius: 50%; box-shadow: 0 10px 22px rgba(8,23,45,.16); }
.about-stamp-caption { z-index: 1; color: #35435a; font: 9px var(--mono); letter-spacing: .14em; }
.about-copy .eyebrow { color: #354229; }
.about-copy .eyebrow > span:first-child { color: #394920; }
.about-copy h2 em { color: #526c15; }
.about-copy > p:not(.eyebrow) { max-width: 600px; margin: 22px 0 0; color: #24334a; font-size: 15px; line-height: 1.75; }
.text-link-dark { margin-top: 20px; border-color: rgba(8,23,45,.55); }
.text-link-dark:hover { color: #445c10; }

.contact { padding: 82px 0; }
.contact-wrap { display: flex; align-items: end; justify-content: space-between; gap: 45px; }
.contact h2 { margin: 0; font-size: clamp(42px, 5.1vw, 65px); line-height: 1.03; letter-spacing: -.075em; }
.contact-wrap > div:first-child > p:last-child { max-width: 550px; margin: 18px 0 0; color: #b3bdc7; font-size: 14px; line-height: 1.7; }
.contact-actions { display: flex; flex: 0 0 auto; flex-direction: column; align-items: flex-start; gap: 13px; padding-bottom: 3px; }
.contact-actions > span { color: #98a4ae; font: 9px var(--mono); letter-spacing: .04em; }
.site-footer { color: #dbe2e7; background: #061224; }
.footer-wrap { min-height: 104px; display: flex; align-items: center; gap: 26px; padding-top: 18px; padding-bottom: 18px; }
.footer-brand { color: var(--paper); }
.footer-brand .brand-icon { width: 36px; height: 36px; }
.footer-brand .brand-name { font-size: 18px; }
.footer-wrap > p { margin: 0; color: #8997a5; font-size: 10px; }
.footer-links { display: flex; gap: 20px; margin-left: auto; }
.footer-links a { color: #bbc4cc; font-size: 10px; transition: color .2s ease; }
.footer-links a:hover { color: var(--acid); }
.copyright { color: #758494; font: 9px var(--mono); }

@media (max-width: 1000px) {
  .site-header { padding-right: 28px; padding-left: 28px; }
  .page-wrap { width: min(var(--wrap), calc(100% - 56px)); }
  .hero { grid-template-columns: 1fr .95fr; gap: 20px; }
  .hero h1 { font-size: clamp(58px, 7.3vw, 80px); }
  .hero-visual { min-height: 390px; }
  .code-lines { padding-right: 14px; padding-left: 14px; }
  .code-lines p { font-size: 11px; }
  .featured-wrap { grid-template-columns: .8fr 1.2fr; gap: 48px; }
  .footer-wrap { flex-wrap: wrap; }
}

@media (max-width: 760px) {
  .topline { min-height: 30px; gap: 8px; font-size: 8px; }
  .site-header { min-height: 68px; padding-right: 22px; padding-left: 22px; }
  .brand-icon { width: 38px; height: 38px; }
  .brand-name { font-size: 20px; }
  .main-nav { z-index: 21; position: absolute; top: 100%; right: 0; left: 0; display: none; align-items: stretch; gap: 0; padding: 8px 22px 15px; background: rgba(244,242,235,.98); border-bottom: 1px solid var(--line); box-shadow: 0 15px 20px rgba(8,23,45,.06); }
  .main-nav.is-open { display: flex; flex-direction: column; }
  .main-nav a { padding: 13px 2px; border-bottom: 1px solid rgba(8,23,45,.08); }
  .main-nav a::after { display: none; }
  .header-subscribe { margin-left: auto; }
  .menu-toggle { width: 40px; height: 40px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 5px; padding: 0; background: transparent; border: 1px solid var(--line); }
  .menu-toggle span { width: 16px; height: 1px; background: var(--ink); transition: transform .2s ease; }
  .menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(3px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-3px) rotate(-45deg); }
  .page-wrap { width: min(var(--wrap), calc(100% - 44px)); }
  .hero { min-height: auto; grid-template-columns: 1fr; gap: 28px; padding-top: 66px; padding-bottom: 55px; }
  .hero h1 { font-size: clamp(57px, 11.5vw, 82px); }
  .hero-lede { max-width: 540px; font-size: 16px; }
  .hero-visual { min-height: 365px; width: min(100%, 540px); margin: 0 auto; }
  .hero-visual-top { top: 10px; left: 10px; }
  .code-card { margin-top: 27px; }
  .orbit-one { right: 1%; }
  .orbit-two { right: -2%; }
  .hero-sticker { right: 5%; bottom: 5%; }
  .hero-visual-caption { left: 3%; bottom: -9px; }
  .ticker-inner { justify-content: flex-start; gap: 22px; min-height: 51px; font-size: 9px; }
  .featured { padding: 78px 0 74px; }
  .featured-wrap { grid-template-columns: 1fr; gap: 36px; }
  .section-heading h2, .lessons-intro h2, .about-copy h2 { font-size: clamp(45px, 9vw, 62px); }
  .section-intro { max-width: 520px; }
  .lessons { padding: 78px 0; }
  .lessons-intro { display: block; margin-bottom: 46px; }
  .lessons-intro > p { max-width: 520px; margin-top: 20px; }
  .topic-heading { align-items: flex-start; flex-direction: column; gap: 17px; }
  .topic-link { margin-top: 1px; }
  .video-grid { grid-template-columns: repeat(2, minmax(0,1fr)); gap: 24px 16px; }
  .video-card h4 { font-size: 15px; }
  .about { padding: 78px 0 85px; }
  .about-wrap { grid-template-columns: .8fr 1.2fr; gap: 35px; }
  .about-stamp { min-height: 210px; }
  .about-avatar { width: 128px; height: 128px; }
  .about-copy > p:not(.eyebrow) { font-size: 13px; }
  .contact { padding: 70px 0; }
  .contact-wrap { align-items: flex-start; flex-direction: column; gap: 28px; }
  .contact h2 { font-size: clamp(43px, 9vw, 60px); }
  .footer-wrap { gap: 16px 23px; }
  .footer-wrap > p { flex-basis: 100%; order: 2; }
  .footer-links { flex-basis: 100%; order: 3; margin-left: 0; }
  .copyright { margin-left: auto; }
}

@media (max-width: 520px) {
  .topline { gap: 6px; font-size: 7px; letter-spacing: .045em; }
  .site-header { min-height: 63px; gap: 10px; padding-right: 15px; padding-left: 15px; }
  .brand { gap: 7px; }
  .brand-icon { width: 34px; height: 34px; }
  .brand-name { font-size: 18px; }
  .header-subscribe { min-height: 37px; padding: 0 10px; gap: 8px; font-size: 10px; }
  .menu-toggle { width: 36px; height: 36px; }
  .page-wrap { width: calc(100% - 34px); }
  .hero { padding-top: 56px; padding-bottom: 44px; }
  .eyebrow { gap: 7px; margin-bottom: 18px; font-size: 8px; letter-spacing: .075em; }
  .hero h1 { font-size: clamp(52px, 12.7vw, 67px); }
  .hero-lede { margin: 21px 0 24px; font-size: 14px; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 11px; }
  .button { min-height: 48px; }
  .hero-footnote { margin-top: 25px; font-size: 8px; }
  .hero-visual { min-height: 300px; margin-top: 1px; }
  .hero-visual-top { left: 4px; gap: 7px; font-size: 7px; }
  .visual-counter { margin-left: 8px; }
  .code-card { margin: 28px 5px 0 8px; padding-bottom: 14px; }
  .code-card-bar { height: 41px; padding: 0 12px; font-size: 8px; }
  .code-lines { padding: 22px 10px; }
  .code-lines p { margin-bottom: 12px; font-size: clamp(8px, 2.7vw, 10px); }
  .code-muted { width: 20px; }
  .code-card-bottom { gap: 8px; padding: 11px 12px 0; font-size: 7px; }
  .hero-sticker { right: 0; bottom: 0; width: 78px; height: 78px; border-width: 4px; }
  .hero-sticker strong { font-size: 26px; }
  .hero-sticker span { font-size: 6px; }
  .hero-visual-caption { bottom: -9px; left: 1%; font-size: 8px; }
  .orbit-one { width: 260px; height: 140px; }
  .orbit-two { width: 320px; height: 190px; }
  .ticker-inner { min-height: 45px; gap: 17px; font-size: 8px; }
  .featured { padding: 64px 0 60px; }
  .featured-wrap { gap: 28px; }
  .section-heading h2, .lessons-intro h2, .about-copy h2 { font-size: 46px; }
  .section-intro { margin: 18px 0 21px; font-size: 13px; }
  .player-meta { align-items: flex-start; flex-direction: column; gap: 8px; font-size: 8px; }
  .player-title { font-size: 17px; }
  .lessons { padding: 62px 0; }
  .lessons-intro { margin-bottom: 37px; }
  .lessons-intro > p { font-size: 13px; }
  .topic-block { padding: 27px 0 37px; }
  .topic-heading h3 { font-size: 21px; }
  .topic-heading p { max-width: 310px; font-size: 11px; }
  .video-grid { grid-template-columns: 1fr; gap: 20px; }
  .video-card { padding-bottom: 19px; }
  .video-thumb { aspect-ratio: 16 / 9; }
  .video-category { margin-top: 13px; }
  .video-card h4 { max-width: 88%; font-size: 16px; }
  .card-arrow { bottom: 22px; }
  .play-mark { width: 41px; height: 41px; font-size: 11px; opacity: 1; transform: translate(-50%,-50%) scale(.95); }
  .about { padding: 64px 0 70px; }
  .about-wrap { grid-template-columns: 1fr; gap: 34px; }
  .about-stamp { width: min(100%, 290px); min-height: 190px; margin: 2px auto 0; }
  .about-avatar { width: 122px; height: 122px; }
  .about-stamp-caption { font-size: 8px; }
  .about-copy > p:not(.eyebrow) { margin-top: 17px; font-size: 13px; }
  .contact { padding: 60px 0; }
  .contact h2 { font-size: 44px; }
  .contact-wrap > div:first-child > p:last-child { font-size: 13px; }
  .footer-wrap { min-height: auto; padding-top: 22px; padding-bottom: 22px; gap: 14px; }
  .footer-links { flex-wrap: wrap; gap: 15px; }
  .footer-wrap > p { font-size: 9px; }
  .copyright { font-size: 8px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}