/* 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; }
.nav-links { font-weight: 800; font-size: 13px; }
.nav-links a > span { margin-left: 4px; color: #93a19d; font-size: 11px; font-weight: 600; }
.nav-cta { border-color: #ed493c; background: #ed493c; color: white; min-height: 46px; box-shadow: 0 6px 24px #ed493c25; }
.nav-links .nav-cta > span { margin: 0 4px 0 0; color: white; font-size: 13px; }
.nav-cta:hover { background: #ff6455; border-color: #ff6455; }
body { word-break: keep-all; overflow-wrap: break-word; }
html { scroll-padding-top: 28px; }
.nav-links { gap: 20px; }
.study-shortcuts { padding-block: 38px; }
.shortcut-grid { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 14px; }
.shortcut { border: 1px solid var(--line); border-radius: 16px; padding: 22px; background: #202a27; display: flex; flex-direction: column; gap: 8px; transition: border-color .2s, transform .2s; }
.shortcut:hover { border-color: var(--accent); transform: translateY(-3px); }
.shortcut strong { font-size: 20px; color: var(--paper); }
.shortcut small { color: var(--accent); font-size: 11px; }
.shortcut span { color: var(--muted); font-size: 13px; }
@media(max-width:850px) { .shortcut-grid { grid-template-columns: repeat(2,minmax(0,1fr)); } }
@media(max-width:560px) { .study-shortcuts { padding-block: 24px; } .shortcut { padding: 17px; } .shortcut strong { font-size: 18px; } }

.hero {
  position: relative;
  overflow: hidden;
  min-height: 570px;
  grid-template-columns: minmax(0, 1.18fr) minmax(310px, .82fr);
  padding: clamp(48px, 5vw, 72px) 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: 760px;
  font-size: clamp(42px, 5.2vw, 74px);
  line-height: 1.13;
  font-weight: 900;
  letter-spacing: -.055em;
}
.hero h1 > .headline-line { display: block; white-space: nowrap; color: var(--paper); }
.hero h1 > .headline-line:last-child { color: var(--accent); }
.keep-word { display: inline-block; white-space: nowrap; }
.hero-copy { min-width: 0; }
.action-note { font-size: 12px; color: #a6b4ae; margin: 14px 0 0; }
.youtube-button { color: white; background: #ed493c; box-shadow: 0 8px 26px #ed493c25; }
.youtube-button:hover { color: white; background: #ff6455; }
.youtube-button b { font-size: 15px; }
.hero-actions .youtube-button { min-height: 58px; padding: 16px 24px; font-size: 17px; }
.hero-actions .secondary { min-height: 58px; background: #f5f1e810; }
.card-action { margin-top: 32px; color: #f5f1e8; font-weight: 800; }
.episode-card:hover { border-color: var(--accent); }
.eyebrow { font-size: 11px; font-weight: 900; letter-spacing: .25em; }
.lead { margin-bottom: 8px; color: var(--paper); font-size: clamp(18px, 1.9vw, 21px); font-weight: 700; max-width: 550px; word-break: keep-all; }
.hero-en { max-width: 570px; margin: 0 0 28px; color: var(--muted); font-size: 15px; line-height: 1.65; }
.button { min-height: 52px; padding: 13px 23px; font-size: 14px; font-weight: 800; transition: background .2s, transform .2s; }
.button > span { font-size: 12px; font-weight: 700; opacity: .78; }
.button:hover { transform: translateY(-2px); }
.button.quiet { background: transparent; color: var(--muted); padding-inline: 12px; }
.button.quiet:hover { color: var(--paper); background: #2a3337; }
.visual { padding: 16px; width: min(100%, 310px); }
.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; letter-spacing: .08em; font-size: 14px; font-weight: 800; color: #eef2ef; }
.rhythm em { margin-left: 6px; color: #94a39e; font-size: 10px; font-style: normal; letter-spacing: .16em; text-transform: uppercase; }
.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 h2 small { display: block; margin-top: 18px; color: #687572; font-size: 17px; font-weight: 700; letter-spacing: .02em; }
.section-head p { max-width: 420px; padding-bottom: 4px; font-size: 18px; line-height: 1.6; }
.section-head p span { color: #65726f; font-size: 15px; }
.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 .episode-en { margin-top: -7px; color: #8fa09b; font-size: 15px; }
.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: 58px 0 74px; }
  .hero h1 { font-size: clamp(42px, 8.2vw, 64px); }
  .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; gap: 8px; }
  .nav-links { gap: 9px; }
  .nav-links a.nav-game { display: inline-flex; white-space: nowrap; font-size: 11px; }
  .nav-links .nav-game span { display: none; }
  .brand { font-size: 19px; }
  .nav-cta { min-height: 44px; padding: 9px 12px; font-size: 12px; white-space: nowrap; }
  .nav-links a.nav-game { min-height: 44px; padding-inline: 5px; font-size: 13px; }
  .hero { padding: 46px 0 62px; }
  .hero h1 { margin-bottom: 22px; font-size: clamp(36px, 9.6vw, 52px); }
  .lead { font-size: 17px; line-height: 1.55; }
  .hero-en { margin-bottom: 22px; font-size: 14px; }
  .hero-actions { gap: 8px; }
  .hero-actions { display: grid; grid-template-columns: 1fr; }
  .hero-actions .button { min-height: 54px; padding: 13px 20px; font-size: 16px; }
  .hero-actions .button.quiet { padding-inline: 8px; }
  .visual { width: min(79%, 285px); }
  .rhythm-inner { min-height: 0; padding-block: 18px; justify-content: space-between; gap: 8px; font-size: 12px; }
  .rhythm em { display: block; margin: 2px 0 0; font-size: 8px; }
  .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; align-items: center; justify-content: space-between; gap: 16px; padding: 18px 22px; font-weight: 800; }
.play-feature-card > span > span { display: grid; gap: 2px; }
.play-feature-card small { color: #9caaa5; font-size: 11px; font-weight: 600; }
.play-feature-card b { color: var(--accent); white-space: nowrap; }
.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; } }
.play-feature-head { margin-bottom: 32px; }
.play-feature-head h2 { font-size: clamp(34px, 4.5vw, 58px); line-height: 1.2; }
.play-feature-head p:not(.eyebrow) { max-width: none; }
.home-games { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.home-game { display: block; overflow: hidden; border: 1px solid #61716b; border-radius: 18px; background: #18201f; transition: border-color .2s, transform .2s; }
.home-game:hover { border-color: var(--accent); transform: translateY(-4px); }
.home-game img { width: 100%; height: auto; aspect-ratio: 16/9; object-fit: cover; }
.home-game div { padding: 22px; }
.home-game small { color: #b7c4c0; font-size: 12px; }
.home-game h3 { margin: 10px 0 20px; font-size: clamp(19px, 2vw, 26px); line-height: 1.4; letter-spacing: -.04em; }
.home-game span { color: var(--accent); font-size: 15px; font-weight: 800; }
@media (max-width: 760px) { .home-games { grid-template-columns: 1fr; } }