/* ============ Design tokens ============ */
:root {
  --bg: #08080d;
  --panel: #12121a;
  --panel-2: #181824;
  --border: #232334;
  --border-2: #34344c;
  --text: #f3f3f8;
  --muted: #9d9db5;
  --faint: #6e6e88;
  --accent: #8b6cff;
  --accent-2: #ff6ca8;
  --accent-text: #c8b8ff;
  --grad: linear-gradient(135deg, #8b6cff 0%, #c46cff 50%, #ff6ca8 100%);
  --ok: #3ddc84;
  --err: #ff6b7a;

  --hover: rgba(255, 255, 255, 0.06);
  --hover-2: rgba(255, 255, 255, 0.11);
  --soft: rgba(255, 255, 255, 0.05);
  --code-bg: rgba(255, 255, 255, 0.07);
  --card-top: rgba(255, 255, 255, 0.04);
  --card-bottom: rgba(255, 255, 255, 0.015);
  --shadow-card: 0 24px 60px -28px rgba(0, 0, 0, 0.7);
  --shadow-player: 0 40px 90px -36px rgba(0, 0, 0, 0.9), 0 0 90px -44px rgba(139, 108, 255, 0.65);
  --glow-1: rgba(139, 108, 255, 0.20);
  --glow-2: rgba(255, 108, 168, 0.11);

  --radius: 14px;
  --radius-lg: 20px;
  --font: 'Inter', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

:root[data-theme="light"] {
  --bg: #f5f5fa;
  --panel: #ffffff;
  --panel-2: #f0f0f7;
  --border: #e3e3ee;
  --border-2: #d0d0e0;
  --text: #14141f;
  --muted: #5a5a74;
  --faint: #8888a2;
  --accent-text: #5b3fd6;
  --ok: #14924f;
  --err: #d6324a;

  --hover: rgba(20, 20, 40, 0.05);
  --hover-2: rgba(20, 20, 40, 0.09);
  --soft: rgba(20, 20, 40, 0.04);
  --code-bg: rgba(20, 20, 40, 0.07);
  --card-top: #ffffff;
  --card-bottom: #fbfbfe;
  --shadow-card: 0 18px 44px -24px rgba(40, 30, 90, 0.28);
  --shadow-player: 0 30px 70px -34px rgba(30, 20, 80, 0.5), 0 0 80px -44px rgba(139, 108, 255, 0.5);
  --glow-1: rgba(139, 108, 255, 0.16);
  --glow-2: rgba(255, 108, 168, 0.10);
}

* { box-sizing: border-box; }
html { color-scheme: dark; }
:root[data-theme="light"] { color-scheme: light; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  color: var(--text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  background:
    radial-gradient(1100px 560px at 85% -8%, var(--glow-1), transparent 60%),
    radial-gradient(800px 480px at -8% 8%, var(--glow-2), transparent 55%),
    var(--bg);
  background-attachment: fixed;
}

a { color: inherit; }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { line-height: 1.15; letter-spacing: -0.02em; }
code { font-family: var(--mono); font-size: 0.88em; background: var(--code-bg); padding: 2px 6px; border-radius: 6px; }
kbd { font-family: var(--mono); font-size: 11px; background: var(--panel-2); border: 1px solid var(--border-2); border-bottom-width: 2px; padding: 1px 6px; border-radius: 6px; color: var(--muted); }
.grad-text { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
input[type="checkbox"] { accent-color: var(--accent); width: 16px; height: 16px; cursor: pointer; margin: 0; }

.container { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 20px; }
.container.narrow { max-width: 580px; }

/* ============ Header / brand ============ */
.site-header { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 20px 0; flex-wrap: wrap; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; font-size: 17px; letter-spacing: -0.01em; text-decoration: none; }
.brand svg { display: block; }
.site-header nav { display: flex; align-items: center; gap: 4px; }
.nav-link { color: var(--muted); text-decoration: none; font-size: 14px; padding: 8px 12px; border-radius: 10px; transition: background .15s, color .15s; background: none; border: 0; font-family: inherit; cursor: pointer; }
.nav-link:hover { color: var(--text); background: var(--hover); }
.tag { font-size: 11px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); border: 1px solid var(--border-2); border-radius: 99px; padding: 3px 9px; margin-left: 6px; }

.theme-toggle { width: 38px; height: 38px; flex: none; border-radius: 12px; border: 1px solid var(--border-2); background: var(--panel); color: var(--text); display: inline-grid; place-items: center; cursor: pointer; transition: background .15s, border-color .15s; }
.theme-toggle:hover { background: var(--panel-2); border-color: var(--accent); }
.theme-toggle .icon-moon { display: none; }
:root[data-theme="light"] .theme-toggle .icon-sun { display: none; }
:root[data-theme="light"] .theme-toggle .icon-moon { display: block; }

/* ============ Buttons & inputs ============ */
.btn {
  appearance: none; border: 0; cursor: pointer; font-family: inherit; font-weight: 600; font-size: 15px;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 22px; border-radius: 12px; text-decoration: none; color: #fff;
  background: var(--grad); box-shadow: 0 10px 28px -10px rgba(139, 108, 255, 0.7);
  transition: transform .12s ease, filter .2s ease, background .2s ease;
}
.btn:hover { transform: translateY(-1px); filter: brightness(1.08); }
.btn:active { transform: translateY(0); }
.btn:disabled { opacity: .45; cursor: not-allowed; transform: none; filter: none; }
.btn-ghost { background: var(--hover); border: 1px solid var(--border-2); box-shadow: none; color: var(--text); }
.btn-ghost:hover { background: var(--hover-2); filter: none; }
.btn-danger { background: rgba(255, 107, 122, 0.10); border: 1px solid rgba(255, 107, 122, 0.3); color: var(--err); box-shadow: none; }
.btn-danger:hover { background: rgba(255, 107, 122, 0.18); filter: none; }
.btn-sm { padding: 7px 13px; font-size: 13px; border-radius: 10px; }
.btn-lg { padding: 15px 28px; font-size: 16px; border-radius: 14px; }
.btn-block { width: 100%; }

.input, .field input[type="text"], .field input[type="password"], .field input[type="file"], select.input {
  width: 100%; padding: 12px 14px; font: inherit; font-size: 15px; color: var(--text);
  background: var(--panel); border: 1px solid var(--border-2); border-radius: 12px; outline: none;
  transition: border-color .15s, box-shadow .15s;
}
.input:focus, .field input:focus { border-color: var(--accent); box-shadow: 0 0 0 4px rgba(139, 108, 255, 0.18); }
.input::placeholder, .field input::placeholder { color: var(--faint); }
.field { margin-bottom: 16px; }
.field label { display: block; margin-bottom: 7px; font-size: 13px; font-weight: 500; color: var(--muted); }
.hint { color: var(--faint); font-size: 12.5px; margin-top: 7px; }
.hint a { color: var(--accent); }

.card {
  background: linear-gradient(180deg, var(--card-top), var(--card-bottom));
  border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 26px;
  box-shadow: var(--shadow-card);
}
.card h2 { font-size: 18px; margin-bottom: 4px; }
.card .sub { color: var(--muted); font-size: 14px; margin-bottom: 20px; }

.notice { padding: 11px 14px; border-radius: 12px; margin-bottom: 10px; font-size: 14px; border: 1px solid transparent; }
.notice.ok { background: rgba(61, 220, 132, 0.09); color: var(--ok); border-color: rgba(61, 220, 132, 0.25); }
.notice.err { background: rgba(255, 107, 122, 0.09); color: var(--err); border-color: rgba(255, 107, 122, 0.28); }

/* ============ Homepage ============ */
.hero { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 56px; align-items: center; padding: 56px 0 72px; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 500; color: var(--muted); background: var(--soft); border: 1px solid var(--border-2); padding: 6px 13px; border-radius: 99px; margin-bottom: 22px; }
.eyebrow::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 0 4px rgba(61, 220, 132, 0.18); }
.hero h1 { font-size: clamp(40px, 6.2vw, 70px); font-weight: 800; letter-spacing: -0.035em; margin-bottom: 20px; }
.lead { font-size: 18px; color: var(--muted); max-width: 520px; margin-bottom: 30px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.join-form { display: flex; gap: 8px; margin-top: 26px; max-width: 480px; }
.join-form .input { flex: 1; min-width: 0; }
.join-label { font-size: 13px; color: var(--faint); margin-top: 26px; }

/* The mock player is an illustration, so it stays dark in both themes. */
.mock { border: 1px solid #34344c; border-radius: 24px; padding: 14px; background: linear-gradient(180deg, #181826, #0f0f17); box-shadow: 0 50px 90px -34px rgba(139, 108, 255, 0.5), inset 0 0 0 1px rgba(255, 255, 255, 0.03); transform: rotate(1.6deg); }
.mock-screen { aspect-ratio: 16 / 9; border-radius: 16px; position: relative; overflow: hidden; display: grid; place-items: center; background: radial-gradient(120% 130% at 18% 8%, #7a5cff 0%, #3b2a8c 38%, #14102b 72%); }
.mock-screen::after { content: ""; position: absolute; inset: auto -20% -45% -20%; height: 70%; background: radial-gradient(closest-side, rgba(255, 108, 168, 0.45), transparent); }
.mock-play { position: relative; z-index: 1; width: 66px; height: 66px; border-radius: 50%; background: rgba(255, 255, 255, 0.16); backdrop-filter: blur(6px); display: grid; place-items: center; }
.mock-play::after { content: ""; border-left: 19px solid #fff; border-top: 12px solid transparent; border-bottom: 12px solid transparent; margin-left: 5px; }
.mock-bar { height: 6px; border-radius: 99px; background: rgba(255, 255, 255, 0.1); margin: 16px 4px 14px; overflow: hidden; }
.mock-fill { display: block; height: 100%; width: 42%; background: var(--grad); border-radius: 99px; }
.mock-row { display: flex; align-items: center; padding: 0 4px 4px; }
.avatar { width: 32px; height: 32px; border-radius: 50%; display: grid; place-items: center; font-size: 12px; font-weight: 700; border: 2px solid #12121a; color: #fff; }
.avatar.a1 { background: #8b6cff; }
.avatar.a2 { background: #ff6ca8; margin-left: -10px; }
.mock-sync { margin-left: auto; font-size: 12px; font-weight: 500; color: #3ddc84; background: rgba(61, 220, 132, 0.1); border: 1px solid rgba(61, 220, 132, 0.25); padding: 4px 11px; border-radius: 99px; }

.section-title { font-size: 28px; font-weight: 700; text-align: center; margin-bottom: 8px; }
.section-sub { color: var(--muted); text-align: center; margin-bottom: 36px; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.step { padding: 24px; }
.step .num { width: 34px; height: 34px; border-radius: 11px; display: grid; place-items: center; font-weight: 700; font-size: 15px; background: var(--grad); color: #fff; margin-bottom: 16px; }
.step h3 { font-size: 17px; margin-bottom: 6px; }
.step p { color: var(--muted); font-size: 14.5px; }

.site-footer { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding: 56px 0 32px; color: var(--faint); font-size: 13px; }
.site-footer a { color: var(--faint); text-decoration: none; }
.site-footer a:hover { color: var(--muted); }

/* ============ Create room ============ */
.page-center { padding: 12px 0 56px; }
.page-title { font-size: 32px; font-weight: 800; letter-spacing: -0.03em; margin-bottom: 6px; }
.page-sub { color: var(--muted); margin-bottom: 26px; }
.movie-list { display: grid; gap: 10px; max-height: 340px; overflow-y: auto; padding: 2px; margin: 0 -2px 22px; }
.movie-option { position: relative; display: block; cursor: pointer; }
.movie-option input { position: absolute; opacity: 0; pointer-events: none; }
.movie-card { display: flex; align-items: center; gap: 14px; padding: 12px 14px; border-radius: 14px; border: 1px solid var(--border-2); background: var(--panel); transition: border-color .15s, background .15s, transform .12s; }
.movie-option:hover .movie-card { background: var(--panel-2); }
.movie-option input:checked + .movie-card { border-color: var(--accent); background: rgba(139, 108, 255, 0.10); box-shadow: 0 0 0 3px rgba(139, 108, 255, 0.16); }
.movie-option input:focus-visible + .movie-card { outline: 2px solid var(--accent); outline-offset: 2px; }
.movie-tile { flex: none; width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; font-weight: 800; font-size: 18px; background: var(--grad); color: #fff; }
.movie-name { font-weight: 600; font-size: 15px; }
.movie-check { margin-left: auto; width: 20px; height: 20px; border-radius: 50%; border: 2px solid var(--border-2); flex: none; }
.movie-option input:checked + .movie-card .movie-check { border-color: var(--accent); background: var(--accent) radial-gradient(circle, #fff 0 32%, transparent 36%); }
.empty { text-align: center; color: var(--muted); padding: 28px 12px; }
.back-link { display: inline-block; margin-top: 18px; color: var(--muted); text-decoration: none; font-size: 14px; }
.back-link:hover { color: var(--text); }

/* ============ Watch page ============ */
.topbar { display: flex; align-items: center; gap: 12px; padding: 16px 0; flex-wrap: wrap; }
.topbar .spacer { flex: 1; }
.room-chip { display: inline-flex; align-items: center; gap: 10px; background: var(--panel); border: 1px solid var(--border); border-radius: 99px; padding: 5px 5px 5px 14px; font-size: 13px; color: var(--muted); }
.room-chip strong { color: var(--text); font-family: var(--mono); font-weight: 600; letter-spacing: .03em; }
.room-chip .btn { padding: 6px 13px; font-size: 12.5px; border-radius: 99px; }

.presence, .status { display: inline-flex; align-items: center; gap: 8px; padding: 7px 13px; border-radius: 99px; font-size: 13px; background: var(--panel); border: 1px solid var(--border); color: var(--muted); }
.presence::before, .status::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--faint); }
.presence.online { color: var(--ok); border-color: rgba(61, 220, 132, 0.3); background: rgba(61, 220, 132, 0.08); }
.presence.online::before { background: var(--ok); box-shadow: 0 0 0 4px rgba(61, 220, 132, 0.18); }
.status[data-state="synced"]::before { background: var(--ok); }
.status[data-state="offline"]::before { background: var(--err); }

.watch-title { font-size: clamp(24px, 3.4vw, 34px); font-weight: 800; letter-spacing: -0.03em; margin: 6px 0 18px; }
.player-card { border-radius: 22px; overflow: hidden; background: #000; border: 1px solid var(--border); box-shadow: var(--shadow-player); }
.video-wrap { position: relative; }
video { display: block; width: 100%; max-height: 78vh; background: #000; }

.controls { display: flex; justify-content: center; align-items: center; gap: 14px; margin-top: 22px; }
.skip-btn { width: 54px; height: 54px; flex: none; padding: 0; border-radius: 50%; background: var(--panel); border: 1px solid var(--border-2); color: var(--text); display: grid; place-items: center; cursor: pointer; transition: background .15s, border-color .15s, transform .12s; }
.skip-btn:hover { background: var(--panel-2); border-color: var(--accent); transform: translateY(-1px); }
.skip-icon { width: 28px; height: 28px; }
.key-hint { text-align: center; color: var(--faint); font-size: 12.5px; margin: 16px 0 40px; }

.buffer-spinner { position: absolute; inset: 0; flex-direction: column; align-items: center; justify-content: center; gap: 12px; background: rgba(0, 0, 0, 0.4); color: #fff; font-size: 13px; pointer-events: none; }
/* [hidden] must win over this display:flex, otherwise the spinner renders regardless of its hidden state. */
.buffer-spinner:not([hidden]) { display: flex; }
.buffer-spinner .spinner { width: 38px; height: 38px; border-radius: 50%; border: 3px solid rgba(255, 255, 255, 0.25); border-top-color: #fff; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.no-video { text-align: center; color: var(--muted); padding: 60px 20px; }
.no-video p + p { margin-top: 8px; }
.no-video a { color: var(--accent); }

/* ============ Admin ============ */
.admin-shell { padding-bottom: 60px; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-bottom: 22px; }
.stat { padding: 18px 20px; }
.stat .n { font-size: 28px; font-weight: 800; letter-spacing: -0.03em; }
.stat .l { color: var(--muted); font-size: 13px; }
.grid-2 { display: grid; grid-template-columns: 1.3fr 1fr; gap: 16px; align-items: start; margin: 16px 0; }
.admin-shell .card { margin-bottom: 16px; }
.grid-2 .card { margin-bottom: 0; }
.table-wrap { overflow-x: auto; margin: 0 -6px; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th { text-align: left; font-size: 11.5px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--faint); padding: 8px 10px; border-bottom: 1px solid var(--border); }
td { padding: 12px 10px; border-bottom: 1px solid var(--border); vertical-align: middle; }
tr:last-child td { border-bottom: 0; }
th.check, td.check { width: 34px; padding-right: 0; }
td.muted, .muted { color: var(--muted); }
td.actions { text-align: right; white-space: nowrap; }
tbody tr:hover { background: var(--soft); }
.badge { display: inline-block; font-size: 11.5px; font-weight: 600; padding: 3px 10px; border-radius: 99px; border: 1px solid var(--border-2); color: var(--muted); }
.badge.r2 { color: var(--accent-text); border-color: rgba(139, 108, 255, 0.5); background: rgba(139, 108, 255, 0.12); }

.bulkbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 34px; margin-bottom: 4px; }
.bulk-count { font-size: 13px; color: var(--muted); }

details.card summary { cursor: pointer; font-weight: 600; font-size: 16px; }
details.card[open] summary { margin-bottom: 14px; }

.cmd-inputs { display: grid; grid-template-columns: 1fr 1.4fr; gap: 12px; margin-bottom: 8px; }
.cmd-group { border: 1px solid var(--border); border-radius: 14px; margin-bottom: 10px; background: var(--soft); }
.cmd-group summary { cursor: pointer; font-weight: 600; font-size: 14.5px; padding: 12px 16px; }
.cmd-group[open] summary { border-bottom: 1px solid var(--border); }
.cmd-row { padding: 12px 16px 2px; }
.cmd-row:last-child { padding-bottom: 14px; }
.cmd-label { font-size: 13px; color: var(--muted); margin-bottom: 6px; }
.cmd-box { display: flex; gap: 8px; align-items: stretch; }
.cmd-box code.cmd { flex: 1; min-width: 0; display: block; padding: 10px 12px; border-radius: 10px; background: var(--panel); border: 1px solid var(--border); font-size: 12.5px; white-space: pre-wrap; word-break: break-all; color: var(--text); }
.cmd-copy { flex: none; align-self: flex-start; }
.steps-list { margin: 0 0 18px; padding-left: 20px; color: var(--muted); font-size: 14px; }
.steps-list li { margin-bottom: 4px; }

.auth-wrap { min-height: 100vh; display: grid; place-items: center; padding: 20px; }
.auth-card { width: 100%; max-width: 400px; }
.auth-card .brand { margin-bottom: 22px; }
.auth-card h1 { font-size: 24px; margin-bottom: 4px; }
.auth-corner { position: fixed; top: 18px; right: 18px; }

progress { width: 100%; height: 8px; margin-top: 14px; border: 0; border-radius: 99px; overflow: hidden; appearance: none; background: var(--border); }
progress::-webkit-progress-bar { background: var(--border); }
progress::-webkit-progress-value { background: var(--grad); }
progress::-moz-progress-bar { background: var(--accent); }

/* ============ Responsive ============ */
@media (max-width: 880px) {
  .hero { grid-template-columns: 1fr; gap: 40px; padding-top: 24px; }
  .mock { transform: none; max-width: 520px; }
  .steps { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .cmd-inputs { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .stats { grid-template-columns: 1fr; }
  .join-form { flex-direction: column; }
  .topbar .spacer { display: none; }
  .card { padding: 20px; }
  .cmd-box { flex-direction: column; }
  .cmd-copy { align-self: flex-end; }
}

/* Smart buffer panel under the player */
.bufpanel { margin: 18px auto 0; max-width: 560px; padding: 12px 16px 14px; border-radius: 16px; background: var(--panel); border: 1px solid var(--border); }
.buf-head { display: flex; align-items: center; flex-wrap: wrap; gap: 6px 12px; font-size: 13px; }
.buf-pill { display: inline-flex; align-items: center; gap: 7px; padding: 4px 11px; border-radius: 99px; font-weight: 600; color: var(--muted); background: var(--panel-2); border: 1px solid var(--border); }
.buf-pill::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--faint); }
.bufpanel[data-mode="smart"] .buf-pill { color: var(--ok); border-color: rgba(61, 220, 132, 0.35); }
.bufpanel[data-mode="smart"] .buf-pill::before { background: var(--ok); }
.buf-ahead { color: var(--text); font-weight: 600; font-variant-numeric: tabular-nums; }
.buf-rate { color: var(--muted); font-variant-numeric: tabular-nums; }
.buf-audio { display: inline-flex; align-items: center; gap: 7px; color: var(--muted); }
.buf-audio[hidden] { display: none; }
.buf-audio select { background: var(--panel-2); color: var(--text); border: 1px solid var(--border-2); border-radius: 8px; padding: 4px 8px; font: inherit; font-size: 12.5px; cursor: pointer; }
.buf-switch { margin-left: auto; padding: 4px 11px; font-size: 12px; }
.buf-bar { margin-top: 10px; height: 8px; border-radius: 99px; background: var(--panel-2); border: 1px solid var(--border); overflow: hidden; }
.buf-fill { height: 100%; width: 0; border-radius: 99px; background: var(--ok); transition: width .4s ease, background .3s; }
.bufpanel[data-level="low"] .buf-fill { background: var(--err); }
.bufpanel[data-level="mid"] .buf-fill { background: #f0b429; }
.buf-note { margin-top: 8px; color: var(--faint); font-size: 12px; }