:root {
  --bg: #0d0f14;
  --surface: #151923;
  --surface-2: #1c2230;
  --border: #2a3245;
  --text: #e8ecf4;
  --muted: #98a2b8;
  --accent: #6c8cff;
  --accent-ink: #0b1020;
  --ok: #3ecf8e;
  --warn: #f5b74a;
  --danger: #ff6b7a;
  --radius: 14px;
  --plyr-color-main: var(--accent);
  color-scheme: dark;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #f4f6fb;
    --surface: #ffffff;
    --surface-2: #eef1f8;
    --border: #d6dcea;
    --text: #151a26;
    --muted: #5b667e;
    --accent: #3559e0;
    --accent-ink: #ffffff;
    color-scheme: light;
  }
}

* { box-sizing: border-box; }

html, body { margin: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  min-height: 100vh;
  padding: env(safe-area-inset-top) 16px env(safe-area-inset-bottom);
}

.topbar {
  max-width: 980px;
  margin: 0 auto;
  padding: 20px 0 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.brand { display: flex; align-items: center; gap: 10px; min-width: 0; }
.brand h1 { font-size: 1.1rem; margin: 0; font-weight: 650; letter-spacing: 0.01em; }
.brand-mark {
  width: 22px; height: 22px; border-radius: 7px; flex: none;
  background: conic-gradient(from 210deg, var(--accent), #9b6cff, var(--accent));
}

.pill {
  font-size: 0.8rem; padding: 4px 12px; border-radius: 999px; white-space: nowrap;
  background: var(--surface-2); border: 1px solid var(--border); color: var(--muted);
}
.pill[data-state="ready"], .pill[data-state="playing"] { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 45%, var(--border)); }
.pill[data-state="loading"], .pill[data-state="buffering"], .pill[data-state="recovering"] { color: var(--warn); border-color: color-mix(in srgb, var(--warn) 45%, var(--border)); }
.pill[data-state="error"] { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 50%, var(--border)); }

.layout {
  max-width: 980px;
  margin: 0 auto;
  display: grid;
  gap: 16px;
  padding-bottom: 40px;
}

.stage {
  position: relative;
  aspect-ratio: 16 / 9;
  background: #000;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.player-mount, .player-mount .plyr, .player-mount video {
  width: 100%; height: 100%;
}
.player-mount video { display: block; background: #000; object-fit: contain; }
.player-mount .plyr { --plyr-video-background: #000; }

.empty-state {
  position: absolute; inset: 0; display: grid; place-items: center;
  padding: 24px; text-align: center; color: var(--muted);
}
.empty-state[hidden] { display: none; }

.overlay {
  position: absolute; inset: 0; display: grid; place-items: center; padding: 16px;
  background: color-mix(in srgb, #000 55%, transparent);
  z-index: 5;
}
.overlay[hidden] { display: none; }
.overlay[data-compact="true"] { background: transparent; pointer-events: none; place-items: start end; }
.overlay-card {
  display: flex; flex-direction: column; align-items: center; gap: 12px;
  max-width: 460px; text-align: center; padding: 20px 22px;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: 0 10px 40px rgb(0 0 0 / 0.45);
}
.overlay[data-compact="true"] .overlay-card { flex-direction: row; padding: 8px 14px; gap: 10px; border-radius: 999px; }
.overlay[data-tone="error"] .overlay-card { border-color: color-mix(in srgb, var(--danger) 60%, var(--border)); }
.overlay-message { margin: 0; font-size: 0.95rem; }

.spinner {
  width: 22px; height: 22px; border-radius: 50%; flex: none;
  border: 3px solid var(--border); border-top-color: var(--accent);
  animation: spin 0.9s linear infinite;
}
.spinner[hidden] { display: none; }
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .spinner { animation-duration: 2.4s; } }

.panel {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px;
}

.field { display: grid; gap: 6px; margin-bottom: 14px; }
.field label { font-size: 0.85rem; font-weight: 600; }
.hint { font-weight: 400; color: var(--muted); }
code { background: var(--surface-2); border-radius: 6px; padding: 1px 5px; font-size: 0.85em; }

input {
  width: 100%; padding: 11px 12px; font: inherit; color: var(--text);
  background: var(--surface-2); border: 1px solid var(--border); border-radius: 10px;
}
input:focus-visible, .btn:focus-visible, summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.actions { display: flex; flex-wrap: wrap; gap: 10px; }
.btn {
  font: inherit; font-weight: 600; cursor: pointer; padding: 10px 16px; border-radius: 10px;
  color: var(--text); background: var(--surface-2); border: 1px solid var(--border);
}
.btn:hover { border-color: var(--accent); }
.btn-primary { background: var(--accent); color: var(--accent-ink); border-color: transparent; }
.btn-primary:hover { filter: brightness(1.08); }
.form-error { color: var(--danger); margin: 12px 0 0; font-size: 0.9rem; }
.form-error[hidden] { display: none; }

.log-panel summary { cursor: pointer; font-weight: 600; }
.log {
  margin: 12px 0 0; max-height: 260px; overflow: auto; font: 12px/1.5 ui-monospace, SFMono-Regular, Menlo, monospace;
  color: var(--muted); white-space: pre-wrap; word-break: break-word;
}

@media (max-width: 560px) {
  body { padding-left: 12px; padding-right: 12px; }
  .brand h1 { font-size: 1rem; }
  .actions .btn { flex: 1 1 100%; }
}