/* SLOW KOREAN / editorial launch style. Shared type direction for the learning app. */
:root {
  --bg: #171d1e;
  --paper: #f5f1e8;
  --ink: #192022;
  --accent: #ff714f;
  --muted: #b7c4c0;
  --line: #3e4b49;
}

body {
  font-family: Inter, "Noto Sans KR", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.shell { width: min(1200px, calc(100% - 64px)); }
.top { border-color: var(--line); }
.nav { min-height: 82px; }
.brand { font-weight: 900; font-size: 23px; letter-spacing: -.075em; }
.brand small { letter-spacing: .28em; }
.nav-links { font-weight: 700; font-size: 13px; }
.nav-cta { border-color: #74817e; }

.hero {
  position: relative;
  overflow: hidden;
  min-height: 770px;
  grid-template-columns: minmax(0, 1.18fr) minmax(310px, .82fr);
  padding: clamp(88px, 9vw, 125px) 0;
}
.hero:before {
  content: "";
  position: absolute;
  z-index: -1;
  width: 900px;
  height: 900px;
  right: -380px;
  top: -370px;
  border-radius: 50%;
  background: radial-gradient(circle, #ff714f20, transparent 66%);
  pointer-events: none;
}
.hero h1 {
  max-width: 780px;
  font-size: clamp(62px, 7.6vw, 111px);
  line-height: .97;
  font-weight: 900;
  letter-spacing: -.083em;
}
.eyebrow { font-size: 11px; font-weight: 900; letter-spacing: .25em; }
.lead { font-size: clamp(18px, 1.9vw, 21px); max-width: 550px; }
.ko { font-size: 15px; line-height: 1.7; }
.button { min-height: 52px; padding: 13px 23px; font-size: 14px; font-weight: 800; transition: background .2s, transform .2s; }
.button:hover { transform: translateY(-2px); }
.visual { padding: 16px; }
.visual:before { inset: 9% -3% 1% 14%; border-color: #82938e; }
.cover { box-shadow: 0 36px 90px #0009; }
.cover .play { box-shadow: 0 5px 24px #0005; font-weight: 900; }

.rhythm { border-block: 1px solid var(--line); }
.rhythm-inner { min-height: 68px; display: flex; align-items: center; justify-content: space-between; gap: 24px; text-transform: uppercase; letter-spacing: .19em; font-size: 11px; font-weight: 800; color: #d6deda; }
.rhythm b { color: var(--accent); font-size: 19px; line-height: 1; }

.band { padding: 114px 0 108px; }
.section-head { display: grid; grid-template-columns: 1.15fr .85fr; align-items: end; gap: 80px; padding-bottom: 50px; margin-bottom: 20px; border-bottom: 1px solid #cbd1c9; }
.section-head h2, .future h2 { font-size: clamp(48px, 6vw, 82px); line-height: 1.02; font-weight: 900; letter-spacing: -.077em; }
.section-head p { max-width: 420px; padding-bottom: 4px; font-size: 18px; line-height: 1.6; }
.steps { gap: 25px; }
.step { min-height: 215px; padding: 20px 18px 0 0; border-radius: 0; background: transparent; }
.step b { display: block; margin-bottom: 46px; color: #d65b3d; font-weight: 900; letter-spacing: .1em; }
.step h3 { margin: 0 0 10px; font-size: 27px; font-weight: 800; }
.step p { max-width: 29ch; line-height: 1.6; }

.episode { padding: 115px 0 120px; gap: clamp(50px, 9vw, 125px); }
.episode h2 { font-size: clamp(44px, 5vw, 68px); font-weight: 900; letter-spacing: -.075em; }
.episode p { line-height: 1.65; }
.episode-card { min-height: 350px; padding: 38px; display: flex; flex-direction: column; align-items: flex-start; justify-content: center; border-color: #4a5b59; border-radius: 24px; background: linear-gradient(145deg, #273231, #1d2526); box-shadow: 0 28px 70px #0004; }
.bubble { font-weight: 900; letter-spacing: -.04em; }
.bubble-answer { margin-top: 30px; font-weight: 900; }

.future { padding: 103px 0 115px; gap: 80px; }
.future-list { gap: 0; }
.future-item { padding: 24px 0; border: 0; border-top: 1px solid var(--line); border-radius: 0; }
.future-item:last-child { border-bottom: 1px solid var(--line); }
.future-item strong { font-size: 20px; font-weight: 800; letter-spacing: -.045em; }
.future-item span { display: block; margin-top: 3px; font-size: 14px; }

footer { padding: 66px 0 33px; }
.footer-hero { margin: 0; color: var(--paper); font-size: clamp(42px, 6vw, 82px); font-weight: 900; letter-spacing: -.077em; line-height: 1.02; }
.footer-hero span { color: var(--accent); }
.foot { margin-top: 78px; }

@media (max-width: 850px) {
  .shell { width: min(100% - 40px, 640px); }
  .hero { min-height: 0; grid-template-columns: 1fr; padding: 76px 0 86px; }
  .hero h1 { font-size: clamp(60px, 11vw, 97px); }
  .visual { width: min(75%, 360px); }
  .section-head { grid-template-columns: 1fr; gap: 23px; }
  .section-head p { max-width: 570px; }
  .episode, .future { grid-template-columns: 1fr; gap: 42px; }
}

@media (max-width: 560px) {
  .shell { width: calc(100% - 32px); }
  .nav { min-height: 68px; }
  .nav-links { gap: 12px; }
  .nav-links a[href="/play/"] { display: inline-flex; white-space: nowrap; font-size: 11px; }
  .brand { font-size: 19px; }
  .nav-cta { font-size: 11px; }
  .hero { padding: 70px 0 75px; }
  .hero h1 { font-size: clamp(55px, 13vw, 77px); }
  .lead { font-size: 17px; }
  .visual { width: min(79%, 315px); }
  .rhythm-inner { min-height: 0; padding-block: 19px; flex-wrap: wrap; justify-content: center; gap: 8px 12px; font-size: 9px; }
  .rhythm b { font-size: 12px; }
  .band { padding: 78px 0 85px; }
  .section-head h2, .future h2 { font-size: clamp(47px, 11vw, 63px); }
  .section-head p { font-size: 16px; }
  .steps { display: block; }
  .step { display: grid; grid-template-columns: 84px 1fr; min-height: 0; gap: 0 8px; padding: 22px 0; border-bottom: 1px solid #cbd1c9; }
  .step b { grid-row: span 2; margin: 0; font-size: 11px; }
  .step h3 { font-size: 22px; }
  .step p { font-size: 14px; }
  .episode { padding: 78px 0 85px; }
  .episode h2 { font-size: clamp(43px, 10vw, 58px); }
  .episode p { font-size: 16px; }
  .episode-card { min-height: 300px; padding: 24px; }
  .future { padding: 77px 0 85px; }
  .future p { font-size: 16px; }
  footer { padding-top: 58px; }
  .foot { margin-top: 68px; }
}

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

.play-feature { background: #273130; color: var(--paper); border-block: 1px solid var(--line); padding: clamp(70px, 8vw, 112px) 0; }
.play-feature-inner { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: clamp(32px, 7vw, 100px); }
.play-feature h2 { font-size: clamp(44px, 6vw, 80px); line-height: 1.02; letter-spacing: -.075em; margin: 0 0 24px; }
.play-feature h2 span { color: var(--accent); }
.play-feature p:not(.eyebrow) { max-width: 35ch; color: #d5dfdb; font-size: 18px; line-height: 1.65; margin: 0 0 28px; }
.play-feature-card { display: block; overflow: hidden; border-radius: 20px; border: 1px solid #61716b; box-shadow: 0 24px 70px #0005; background: #18201f; }
.play-feature-card img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
.play-feature-card span { display: flex; justify-content: space-between; gap: 16px; padding: 18px 22px; font-weight: 800; }
.play-feature-card b { color: var(--accent); }
.foot-links { display: flex; flex-wrap: wrap; gap: 14px 30px; }
@media (max-width: 760px) { .play-feature-inner { grid-template-columns: 1fr; } .play-feature p:not(.eyebrow) { font-size: 16px; } }