:root {
  color-scheme: light;
  --bg: #f4efe6;
  --surface: rgba(255, 253, 248, 0.82);
  --surface-solid: #fffdf8;
  --ink: #22231f;
  --muted: #686961;
  --line: rgba(34, 35, 31, 0.12);
  --accent: #ef6b45;
  --accent-soft: #ffdca8;
  --shadow: 0 22px 55px rgba(73, 55, 33, 0.12);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #17191d;
  --surface: rgba(37, 40, 45, 0.8);
  --surface-solid: #24272c;
  --ink: #f7f3e9;
  --muted: #adafae;
  --line: rgba(255, 255, 255, 0.11);
  --accent: #ff916f;
  --accent-soft: #5d3d29;
  --shadow: 0 24px 62px rgba(0, 0, 0, 0.32);
}

* { box-sizing: border-box; }

html { min-width: 320px; scroll-behavior: smooth; }

body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 88% 4%, rgba(255, 184, 90, 0.26), transparent 27rem),
    radial-gradient(circle at 6% 36%, rgba(78, 171, 163, 0.16), transparent 24rem),
    var(--bg);
  transition: color 180ms ease, background-color 180ms ease;
}

button, input { font: inherit; }
a { color: inherit; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
  padding: 26px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand img { border-radius: 14px; box-shadow: 0 9px 22px rgba(239, 107, 69, 0.22); }
.brand span { display: grid; gap: 2px; }
.brand strong { font-size: 1rem; letter-spacing: .04em; }
.brand small { color: var(--muted); font-size: .76rem; }

.icon-button {
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 14px;
  color: var(--ink);
  background: var(--surface);
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(0, 0, 0, .05);
}

.icon-button:hover { transform: translateY(-2px); }
.icon-button:focus-visible, a:focus-visible, input:focus-visible { outline: 3px solid rgba(239, 107, 69, .38); outline-offset: 3px; }

main { width: min(1160px, calc(100% - 40px)); margin: 0 auto; }

.hero { padding: clamp(54px, 9vw, 118px) 0 clamp(68px, 9vw, 112px); max-width: 880px; }
.eyebrow { margin: 0 0 14px; color: var(--accent); font-size: .75rem; font-weight: 800; letter-spacing: .18em; }

.hero h1 {
  margin: 0;
  max-width: 820px;
  font-size: clamp(3.2rem, 9.5vw, 7.6rem);
  line-height: .94;
  letter-spacing: -.075em;
  font-weight: 900;
}

.hero h1 span { color: var(--accent); }
.hero-copy { max-width: 620px; margin: 30px 0 0; color: var(--muted); font-size: clamp(1rem, 2vw, 1.18rem); line-height: 1.8; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.hero-meta span, .tag-list span { padding: 7px 11px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font-size: .78rem; background: var(--surface); }

.library { padding-bottom: 90px; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 28px; }
.section-heading h2 { margin: 0; font-size: clamp(2rem, 4vw, 3.4rem); letter-spacing: -.045em; }

.search-box {
  min-width: min(310px, 100%);
  height: 48px;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 0 15px;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: var(--surface);
}

.search-box input { width: 100%; border: 0; outline: 0; color: var(--ink); background: transparent; }
.search-box input::placeholder { color: var(--muted); }

.game-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 310px), 1fr)); gap: 20px; }

.game-card {
  position: relative;
  min-height: 390px;
  display: flex;
  flex-direction: column;
  padding: 26px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.game-card::after {
  content: "";
  position: absolute;
  width: 190px;
  height: 190px;
  right: -60px;
  top: -70px;
  border-radius: 50%;
  background: var(--card-glow, var(--accent-soft));
  filter: blur(2px);
  opacity: .65;
  pointer-events: none;
}

.game-card[data-accent="amber"] { --card-glow: #ffd187; }
.game-card[data-accent="mint"] { --card-glow: #a7dfc9; }
.game-card[data-accent="blue"] { --card-glow: #b8caec; }
.game-card[data-accent="violet"] { --card-glow: #d7c4ef; }
:root[data-theme="dark"] .game-card[data-accent="amber"] { --card-glow: #6d4527; }
:root[data-theme="dark"] .game-card[data-accent="mint"] { --card-glow: #28584a; }
:root[data-theme="dark"] .game-card[data-accent="blue"] { --card-glow: #30466e; }
:root[data-theme="dark"] .game-card[data-accent="violet"] { --card-glow: #493564; }
.card-top { display: flex; align-items: start; justify-content: space-between; position: relative; z-index: 1; }
.card-icon { display: grid; place-items: center; width: 62px; height: 62px; border-radius: 19px; font-size: 2rem; background: var(--surface-solid); box-shadow: 0 10px 26px rgba(0, 0, 0, .08); }
.status-pill { padding: 7px 10px; border-radius: 999px; color: #2d654d; background: #d9f5e6; font-size: .72rem; font-weight: 800; }
:root[data-theme="dark"] .status-pill { color: #9de0bd; background: #244a3a; }
.card-kicker { margin: 34px 0 8px; color: var(--accent); font-size: .76rem; font-weight: 800; letter-spacing: .12em; }
.game-card h3 { margin: 0; font-size: 2rem; letter-spacing: -.04em; }
.card-description { color: var(--muted); line-height: 1.7; }
.tag-list { display: flex; flex-wrap: wrap; gap: 7px; margin-top: auto; }
.tag-list span { padding: 5px 9px; background: transparent; }
.card-link { display: flex; align-items: center; justify-content: space-between; margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--line); text-decoration: none; font-weight: 800; }
.card-link .arrow { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; color: #fff; background: var(--accent); transition: transform 180ms ease; }
.card-link:hover .arrow { transform: rotate(12deg) scale(1.08); }
.empty-state { padding: 38px; text-align: center; color: var(--muted); border: 1px dashed var(--line); border-radius: 22px; }
.collection-group + .collection-group { margin-top: 46px; }
.group-heading { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 18px; }
.group-heading h3 { margin: 0; font-size: 1.15rem; letter-spacing: -.02em; }
.group-heading span { color: var(--muted); font-size: .78rem; }

footer {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
  padding: 28px 0 42px;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: .84rem;
}

footer p { margin: 0; }
[hidden] { display: none !important; }

@media (max-width: 680px) {
  .site-header, main, footer { width: min(100% - 28px, 1160px); }
  .brand small { display: none; }
  .hero { padding-top: 42px; }
  .hero h1 { font-size: clamp(3rem, 17vw, 5rem); }
  .section-heading { align-items: stretch; flex-direction: column; }
  .search-box { min-width: 100%; }
  .game-card { min-height: 370px; }
  footer { flex-direction: column; }
}

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