:root {
  --paper-50: #faf9f7;
  --color-bg: var(--paper-50);
  --color-text-primary: #2b2722;
  --color-text-body: #57514a;
  --color-text-muted: #9a928a;
  --color-border: #d6cec3;
  --ui-text: rgba(67, 60, 52, 0.90);
  --plate-bg: rgba(250, 249, 247, 0.55);
  --plate-border: rgba(67, 60, 52, 0.10);
  --plate-chip: rgba(67, 60, 52, 0.10);
  --plate-shadow: 0 10px 34px rgba(40, 35, 30, 0.12), inset 0 1px 0 rgba(255, 255, 255, 0.30);
  --plate-backdrop: blur(22px) saturate(150%);
  --radius-round: 999px;
  --ff-serif: "Source Serif 4", Georgia, serif;
  --ff-sans: "Inter", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  --card-bg: #f0ede8;
  --card-border: rgba(43, 39, 34, 0.13);
}

* { box-sizing: border-box; }

html { min-height: 100%; -webkit-text-size-adjust: 100%; }

body {
  min-height: 100vh;
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text-body);
  font-family: var(--ff-sans);
  -webkit-font-smoothing: antialiased;
}

.site-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  max-width: 1480px;
  margin-inline: auto;
  padding: clamp(28px, 4vw, 44px) clamp(22px, 4vw, 52px) 0;
}

.nav {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px;
  border: 1px solid var(--plate-border);
  border-radius: var(--radius-round);
  background: var(--plate-bg);
  box-shadow: var(--plate-shadow);
  backdrop-filter: var(--plate-backdrop);
  -webkit-backdrop-filter: var(--plate-backdrop);
}

.nav a {
  padding: 8px clamp(14px, 1.4vw, 20px);
  border-radius: var(--radius-round);
  color: var(--ui-text);
  font: 400 clamp(12px, 1.05vw, 15px)/1 "Roboto", "Helvetica Neue", Arial, sans-serif;
  letter-spacing: 0.05em;
  text-decoration: none;
  transition: background 220ms ease, color 220ms ease;
}

.nav a:hover,
.nav a[aria-current="page"] { background: var(--plate-chip); }

.playground {
  width: min(1120px, calc(100% - clamp(40px, 10vw, 128px)));
  margin: clamp(70px, 9vw, 128px) auto 120px;
}

.playground-intro { max-width: 720px; }

.eyebrow {
  margin: 0 0 22px;
  color: var(--color-text-muted);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.playground-intro h1 {
  margin: 0;
  color: var(--color-text-primary);
  font: 400 clamp(2.5rem, 5.4vw, 5rem)/1.02 var(--ff-serif);
  letter-spacing: -0.035em;
}

.playground-intro > p:last-child {
  max-width: 540px;
  margin: 26px 0 0;
  color: var(--color-text-body);
  font-size: clamp(15px, 1.5vw, 18px);
  line-height: 1.55;
}

.playground-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 32px);
  margin-top: clamp(54px, 7vw, 88px);
}

.play-card {
  display: block;
  min-width: 0;
  padding: 14px 14px 18px;
  border: 1px solid var(--card-border);
  border-radius: 26px;
  background: var(--card-bg);
  color: var(--color-text-primary);
  text-decoration: none;
  box-shadow: 0 18px 50px rgba(45, 38, 32, 0.08);
}

.play-card:focus-visible {
  outline: 2px solid var(--color-text-muted);
  outline-offset: 4px;
}

.play-card__cover {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: 17px;
  background: #050505;
  isolation: isolate;
}

.play-card__cover::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 3;
  background: linear-gradient(180deg, rgba(0,0,0,.04), transparent 50%, rgba(0,0,0,.24));
  pointer-events: none;
}

.play-card__cover img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.play-card__meta { padding: 16px 4px 0; }

.play-card__title-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
}

.play-card h2,
.play-card time { margin: 0; font-size: 16px; font-weight: 500; letter-spacing: -.01em; }
.play-card time { flex: 0 0 auto; color: var(--color-text-body); font-weight: 400; }
.play-card__meta p { margin: 7px 0 0; color: var(--color-text-muted); font-size: 11px; }

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 0 clamp(22px, 4vw, 52px) 28px;
  color: var(--color-text-muted);
  font-size: 11px;
}

.site-footer__local { display: inline-flex; gap: 8px; }
#localTime { font-variant-numeric: tabular-nums; }

html[data-theme="dark"] {
  --card-bg: #211f1d;
  --card-border: rgba(255,255,255,.10);
}

html[data-theme="dark"] .play-card { box-shadow: 0 18px 50px rgba(0,0,0,.22); }

@media (max-width: 920px) {
  .playground-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
  .site-head { align-items: flex-start; }
  .nav { padding: 6px; gap: 1px; }
  .nav a { padding: 7px 9px; font-size: 11px; }
  .playground { width: calc(100% - 40px); margin-top: 70px; }
}

@media (max-width: 600px) {
  .playground-grid { grid-template-columns: 1fr; }
}

@media (max-width: 430px) {
  theme-toggle { display: none !important; }
  .play-card { padding: 10px 10px 15px; border-radius: 22px; }
  .play-card__cover { border-radius: 14px; }
  .playground-intro h1 br { display: none; }
}