:root {
  --bg: #16100d;
  --card: rgba(43, 31, 25, 0.78);
  --line: #3e2e25;
  --text: #f4e7d4;
  --muted: #b9a38d;
  --amber: #f4a259;
  --terracotta: #e2725b;
  --ok: #a3c47a;
  --err: #f08b78;
  --radius: 18px;
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  min-height: 100vh;
  font: 16px/1.5 ui-rounded, 'SF Pro Rounded', system-ui, -apple-system, 'Segoe UI', sans-serif;
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 15% -10%, rgba(244, 162, 89, 0.16), transparent 60%),
    radial-gradient(900px 500px at 110% 110%, rgba(226, 114, 91, 0.14), transparent 60%),
    var(--bg);
}

h1,
h2,
h3 {
  margin: 0 0 0.5em;
  line-height: 1.2;
}

h1 {
  font-size: 2.4rem;
}

h3 {
  font-size: 1rem;
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  gap: 0.5em;
}

p {
  margin: 0 0 1em;
}

small {
  color: var(--muted);
}

/* ---------- layout ---------- */

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 28px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 0.04em;
  color: var(--text);
  text-decoration: none;
}

main {
  padding: 0 28px 40px;
}

.view.center {
  display: grid;
  place-items: center;
  min-height: calc(100vh - 140px);
}

.view.room {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 24px;
  max-width: 1280px;
  margin: 0 auto;
}

@media (max-width: 900px) {
  .view.room {
    grid-template-columns: 1fr;
  }
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  backdrop-filter: blur(8px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
}

.view.center .card,
.modal .card {
  width: min(480px, 100%);
}

/* Over the room, so you see where you're going while picking a name. */
.modal {
  position: fixed;
  inset: 0;
  z-index: 10;
  display: grid;
  place-items: center;
  padding: 24px;
  background: rgba(22, 16, 13, 0.6);
  backdrop-filter: blur(3px);
}

.hero {
  text-align: center;
}

.side {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* On desktop the side is exactly as tall as the 16:9 screen next to it (column width minus side and gap),
   and the chat takes whatever height is left. */
@media (min-width: 901px) {
  .view.room {
    container-type: inline-size;
  }

  .side {
    align-self: start;
    height: calc((100cqw - 344px) * 9 / 16);
  }

  .side .chat {
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
  }

  .side .chat-log {
    flex: 1;
    min-height: 0;
    max-height: none;
  }
}

/* ---------- controls ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4em;
  padding: 10px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition:
    transform 0.15s,
    box-shadow 0.15s,
    opacity 0.15s;
}

.btn:hover:not(:disabled) {
  transform: translateY(-1px);
}

.btn:disabled {
  opacity: 0.45;
  cursor: default;
}

.btn.primary {
  border-color: transparent;
  background: linear-gradient(135deg, var(--amber), var(--terracotta));
  color: #2a140b;
  box-shadow: 0 6px 24px rgba(244, 162, 89, 0.3);
}

.btn.primary:hover:not(:disabled) {
  box-shadow: 0 8px 30px rgba(244, 162, 89, 0.45);
}

.btn.big {
  padding: 14px 30px;
  font-size: 1.1rem;
}

input {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(0, 0, 0, 0.3);
  color: var(--text);
  font: inherit;
  outline: none;
  transition: border-color 0.15s;
}

input:focus {
  border-color: var(--amber);
}

.name-row {
  display: flex;
  gap: 8px;
}

.hint {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 1em 0 0;
}

.error {
  color: var(--err);
  font-size: 0.9rem;
  margin: 1em 0 0;
}

.pill {
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-size: 0.85rem;
  color: var(--muted);
}

.pill::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 8px;
  border-radius: 50%;
  background: var(--amber);
}

.pill[data-tone='ok']::before {
  background: var(--ok);
  box-shadow: 0 0 8px var(--ok);
}

/* ---------- room ---------- */

.screen {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: 28px 28px var(--radius) var(--radius);
  overflow: hidden;
  background: #000;
  border: 2px solid rgba(244, 162, 89, 0.35);
  box-shadow:
    0 0 0 6px rgba(43, 31, 25, 0.9),
    0 0 50px rgba(244, 162, 89, 0.18),
    0 30px 80px rgba(0, 0, 0, 0.5);
}

.screen iframe,
#player {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.empty {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  text-align: center;
  color: var(--muted);
  background: radial-gradient(circle at center, #2b1f19, #120c0a);
}

.overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  border: 0;
  background: rgba(22, 16, 13, 0.82);
  backdrop-filter: blur(6px);
  font: inherit;
  cursor: pointer;
}

.now-playing {
  margin: 18px 4px 0;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.now-playing::before {
  content: '♪ Now playing · ';
  color: var(--amber);
}

.video-form {
  display: flex;
  gap: 10px;
  margin-top: 16px;
}

.people {
  list-style: none;
  margin: 0;
  padding: 0;
}

.people li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px dashed var(--line);
}

.people li:last-child {
  border-bottom: 0;
}

.icon-btn {
  padding: 2px 6px;
  border: 0;
  border-radius: 8px;
  background: none;
  color: var(--ok);
  font: inherit;
  cursor: pointer;
  transition: background 0.15s;
}

.icon-btn:hover {
  background: rgba(255, 255, 255, 0.08);
}

.count {
  margin-left: auto;
  color: var(--amber);
  font-weight: 600;
}

.chat-log {
  list-style: none;
  margin: 0 0 12px;
  padding: 0;
  max-height: 280px;
  overflow-y: auto;
}

.chat-log:empty {
  display: none;
}

.chat-log li {
  padding: 6px 0;
  overflow-wrap: anywhere;
}

.chat-log b {
  margin-right: 0.5em;
  color: var(--amber);
}

.chat-log li.mine b {
  color: var(--ok);
}

.chat .hint {
  margin: 0 0 12px;
}

.chat-form {
  display: flex;
  gap: 8px;
}

/* ---------- vinyl ---------- */

.vinyl {
  display: inline-block;
  flex: none;
  border-radius: 50%;
  background:
    radial-gradient(circle, var(--bg) 0 6%, var(--amber) 7% 26%, transparent 27%),
    repeating-radial-gradient(circle, #1c1411 0 2px, #2a1f1a 3px 4px);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.06);
}

.vinyl::after {
  content: '';
  display: block;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: conic-gradient(from 30deg, transparent 0 20%, rgba(255, 255, 255, 0.08) 25%, transparent 30% 70%, rgba(255, 255, 255, 0.08) 75%, transparent 80%);
}

.vinyl.small {
  width: 28px;
  height: 28px;
}

.vinyl.big {
  width: 120px;
  height: 120px;
  margin-bottom: 20px;
  box-shadow: 0 0 60px rgba(244, 162, 89, 0.25);
  animation: spin 6s linear infinite;
}

.vinyl.spinning {
  animation: spin 2s linear infinite;
}

/* ---------- animations ---------- */

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes shake {
  25% {
    transform: translateX(-6px);
  }
  75% {
    transform: translateX(6px);
  }
}

.shake {
  animation: shake 0.25s 2;
  border-color: var(--err);
}

@media (prefers-reduced-motion: reduce) {
  .vinyl.big,
  .vinyl.spinning {
    animation: none;
  }
}