:root {
  color-scheme: dark;
  --ink: #effbf3;
  --muted: #a9c5b4;
  --line: rgba(211, 244, 221, .15);
  --panel: rgba(8, 31, 32, .88);
  --green: #baff82;
  --deep: #041317;
}

* { box-sizing: border-box; }
html { max-width: 100%; overflow-x: hidden; scroll-behavior: smooth; }
body {
  margin: 0;
  width: 100%;
  max-width: 100%;
  min-height: 100vh;
  overflow-x: hidden;
  color: var(--ink);
  background:
    linear-gradient(180deg, rgba(3, 16, 20, .55), var(--deep) 42rem),
    url("/assets/backgrounds/timecycle-desktop/sonyeon-18.webp") top center / 100% auto no-repeat,
    var(--deep);
  font-family: "Poppins", system-ui, sans-serif;
}
a { color: inherit; }
img { max-width: 100%; }
.skip-link { position: fixed; top: .5rem; left: .5rem; z-index: 20; padding: .65rem 1rem; color: #07140e; background: var(--green); border-radius: .5rem; transform: translateY(-150%); }
.skip-link:focus { transform: none; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  min-height: 4.75rem;
  padding: .55rem clamp(1rem, 4vw, 4.5rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid var(--line);
  background: rgba(3, 18, 21, .88);
  backdrop-filter: blur(18px);
}
.site-brand img { width: min(15rem, 48vw); height: 3.5rem; display: block; object-fit: contain; object-position: left; }
.site-nav { display: flex; align-items: center; justify-content: flex-end; flex-wrap: wrap; gap: .35rem 1rem; }
.site-nav a { color: #c6ded0; font-size: .72rem; font-weight: 750; text-decoration: none; }
.site-nav a:hover, .site-nav a:focus-visible, .footer-links a:hover, .footer-links a:focus-visible { color: var(--green); text-decoration: underline; text-underline-offset: .25rem; }
.play-link { padding: .55rem .8rem; color: #07150e !important; background: var(--green); border-radius: .65rem; }
main { width: min(74rem, calc(100% - 2rem)); max-width: calc(100vw - 2rem); margin: 0 auto; }
.breadcrumbs { padding: 1.1rem 0 0; color: #98b4a4; font-size: .7rem; }
.breadcrumbs ol { margin: 0; padding: 0; display: flex; gap: .4rem; list-style: none; }
.breadcrumbs li:not(:last-child)::after { content: "/"; margin-left: .4rem; opacity: .55; }
.breadcrumbs a { text-decoration: none; }
.hero { min-height: 31rem; padding: clamp(4rem, 9vw, 7.5rem) 0 4rem; display: grid; align-content: center; }
.hero.compact { min-height: 22rem; padding-block: 3.5rem; }
.eyebrow { margin: 0 0 .8rem; color: var(--green); font-size: .68rem; font-weight: 850; letter-spacing: .16em; text-transform: uppercase; }
h1, h2, h3 { text-wrap: balance; }
h1 { max-width: 58rem; margin: 0; font-size: clamp(2.7rem, 7vw, 5.8rem); line-height: .98; letter-spacing: -.055em; }
h1 em { color: var(--green); font-style: normal; }
.lede { width: 100%; max-width: 49rem; margin: 1.4rem 0 0; color: #c4dccd; font-size: clamp(1rem, 2vw, 1.18rem); line-height: 1.75; overflow-wrap: anywhere; }
.hero-actions { margin-top: 1.6rem; display: flex; flex-wrap: wrap; gap: .7rem; }
.button { min-height: 3rem; padding: .72rem 1rem; display: inline-flex; align-items: center; justify-content: center; border: 1px solid rgba(186,255,130,.42); border-radius: .75rem; color: #07150e; background: var(--green); font-size: .78rem; font-weight: 850; text-decoration: none; }
.button.secondary { color: var(--ink); background: rgba(7, 34, 34, .72); }
.content-section { padding: clamp(3rem, 7vw, 6rem) 0; border-top: 1px solid var(--line); }
.content-section h2 { margin: 0 0 1rem; font-size: clamp(1.8rem, 4vw, 3rem); letter-spacing: -.04em; }
.content-section > p, .section-intro { max-width: 48rem; color: var(--muted); line-height: 1.8; }
.feature-grid { margin-top: 2rem; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.feature-card { padding: 1.3rem; border: 1px solid var(--line); border-radius: 1rem; background: linear-gradient(145deg, rgba(12, 46, 43, .82), rgba(5, 22, 27, .88)); box-shadow: inset 0 1px rgba(255,255,255,.04), 0 1rem 2.5rem rgba(0,0,0,.12); }
.feature-card h2, .feature-card h3 { margin: .2rem 0 .6rem; font-size: 1.15rem; letter-spacing: -.025em; }
.feature-card p { margin: 0; color: var(--muted); font-size: .86rem; line-height: 1.7; }
.feature-card img { width: 100%; aspect-ratio: 16 / 10; margin-bottom: 1rem; display: block; object-fit: cover; border-radius: .7rem; }
.steps { margin: 2rem 0 0; padding: 0; display: grid; gap: .8rem; list-style: none; counter-reset: step; }
.steps li { min-width: 0; padding: 1.25rem; display: grid; grid-template-columns: 2.5rem minmax(0, 1fr); gap: .85rem; border: 1px solid var(--line); border-radius: 1rem; background: var(--panel); counter-increment: step; }
.steps li > div { min-width: 0; }
.steps li::before { width: 2.25rem; height: 2.25rem; display: grid; place-items: center; color: #07150e; background: var(--green); border-radius: 50%; font-weight: 900; content: counter(step); }
.steps h2, .steps h3 { margin: .15rem 0 .35rem; font-size: 1.05rem; }
.steps p { margin: 0; color: var(--muted); font-size: .86rem; line-height: 1.65; }
.faq { display: grid; gap: .65rem; }
.faq details { padding: 1rem 1.15rem; border: 1px solid var(--line); border-radius: .8rem; background: var(--panel); }
.faq summary { cursor: pointer; font-weight: 750; }
.faq p { color: var(--muted); line-height: 1.7; }
.catalogue-tools { margin: 1.5rem 0; display: grid; grid-template-columns: minmax(12rem, 1fr) auto; gap: .7rem; }
.catalogue-tools input, .catalogue-tools select { min-height: 3rem; padding: .7rem .85rem; border: 1px solid var(--line); border-radius: .75rem; color: var(--ink); background: rgba(4, 22, 26, .92); font: inherit; }
.catalogue-count { color: var(--muted); font-size: .78rem; }
.card-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem; }
.catalogue-card { overflow: hidden; border: 1px solid var(--line); border-radius: .9rem; background: var(--panel); transition: transform .18s ease, border-color .18s ease; }
.catalogue-card:hover { transform: translateY(-.2rem); border-color: rgba(186,255,130,.45); }
.catalogue-card > a { height: 100%; display: flex; flex-direction: column; text-decoration: none; }
.catalogue-card img { width: 100%; aspect-ratio: 3 / 2; display: block; object-fit: cover; background: #09252a; }
.catalogue-card div { padding: .8rem; display: grid; gap: .18rem; }
.catalogue-card h2 { margin: 0; font-size: .95rem; }
.catalogue-card p { margin: 0; color: var(--muted); font-size: .68rem; }
.card-detail { padding: clamp(2rem, 5vw, 4rem) 0 5rem; display: grid; grid-template-columns: minmax(18rem, .88fr) minmax(20rem, 1.12fr); align-items: center; gap: clamp(2rem, 6vw, 5rem); }
.card-art { overflow: hidden; border: 1px solid rgba(225,255,235,.3); border-radius: 1.25rem; background: #09252a; box-shadow: 0 2rem 5rem rgba(0,0,0,.4); }
.card-art img { width: 100%; display: block; }
.card-copy > h2 { margin: 0; font-size: clamp(2.7rem, 6vw, 5rem); line-height: .98; letter-spacing: -.055em; }
.card-copy .description { color: #bfd7c8; line-height: 1.8; }
.stat-list { margin: 1.5rem 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .6rem; list-style: none; }
.stat-list li { padding: .75rem; border: 1px solid var(--line); border-radius: .65rem; background: rgba(8, 31, 32, .7); }
.stat-list small, .stat-list strong { display: block; }
.stat-list small { color: #8fab9a; font-size: .62rem; text-transform: uppercase; letter-spacing: .08em; }
.stat-list strong { margin-top: .15rem; font-size: .9rem; }
.attack-list { margin: 1.4rem 0; padding: 0; display: grid; gap: .55rem; list-style: none; }
.attack-list li { padding: .85rem 1rem; display: flex; justify-content: space-between; gap: 1rem; border-left: .2rem solid var(--green); background: rgba(8, 31, 32, .72); }
.notice { padding: 1rem 1.15rem; border: 1px solid rgba(186,255,130,.2); border-radius: .8rem; color: #bed5c6; background: rgba(13,48,40,.6); line-height: 1.7; }
.site-footer { margin-top: 4rem; padding: 2rem clamp(1rem, 4vw, 4.5rem); border-top: 1px solid var(--line); background: #031014; }
.site-footer > div { width: min(74rem, 100%); margin: auto; display: flex; justify-content: space-between; gap: 1rem; }
.site-footer p { margin: 0; color: #839e8e; font-size: .68rem; }
.footer-links { display: flex; flex-wrap: wrap; gap: .5rem 1rem; }
.footer-links a { color: #a9c5b4; font-size: .68rem; text-decoration: none; }

@media (max-width: 850px) {
  .site-header { position: relative; width: 100%; align-items: flex-start; flex-direction: column; overflow: hidden; }
  .site-nav { width: 100%; max-width: 100%; padding-bottom: .25rem; justify-content: flex-start; flex-wrap: nowrap; overflow-x: auto; overscroll-behavior-inline: contain; scrollbar-width: none; }
  .site-nav::-webkit-scrollbar { display: none; }
  .site-nav a { flex: 0 0 auto; }
  .hero { min-height: 26rem; }
  .feature-grid, .card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .card-detail { grid-template-columns: 1fr; }
  .card-art { max-width: 38rem; }
}

@media (max-width: 540px) {
  main { width: auto; max-width: none; margin-inline: .6rem; }
  .site-header { padding-inline: .7rem; }
  .site-nav { gap: .35rem .7rem; }
  h1 { font-size: clamp(2.15rem, 10.5vw, 3rem); line-height: 1.02; letter-spacing: -.045em; }
  .hero.compact { min-height: 0; padding-block: 3rem; }
  .lede { font-size: .95rem; }
  .feature-grid { grid-template-columns: 1fr; }
  .card-grid { gap: .6rem; }
  .catalogue-card h2 { font-size: .8rem; }
  .catalogue-tools { grid-template-columns: 1fr; }
  .site-footer > div { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .catalogue-card { transition: none; }
}