:root {
  --bg: #0f1115;
  --panel: #181b22;
  --border: #2a2f3a;
  --text: #e8eaef;
  --muted: #8a92a3;
  --accent: #4f8cff;
  --danger: #ff5a5f;
  --live: #2ecc71;
  color-scheme: dark;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

body.centered { display: grid; place-items: center; padding: 16px; }

.card {
  width: 100%;
  max-width: 360px;
  padding: 28px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
}

h1 { font-size: 1.4rem; margin: 12px 0 20px; }

.brand { display: flex; align-items: center; gap: 8px; font-weight: 600; }

.dot { width: 10px; height: 10px; border-radius: 50%; background: var(--muted); }
.dot.live { background: var(--live); box-shadow: 0 0 8px var(--live); }

.muted { color: var(--muted); font-weight: 400; font-size: 0.9rem; }

label { display: block; margin-bottom: 14px; color: var(--muted); font-size: 0.9rem; }

input {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 10px 12px;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  font: inherit;
}
input:focus { outline: 2px solid var(--accent); border-color: transparent; }

button, .button {
  display: inline-block;
  padding: 10px 16px;
  background: var(--accent);
  color: #fff;
  border: 0;
  border-radius: 8px;
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
}
form button[type="submit"] { width: 100%; margin-top: 6px; }
button.ghost { width: auto; margin: 0; padding: 6px 12px; background: transparent; border: 1px solid var(--border); color: var(--text); }
button:hover, .button:hover { filter: brightness(1.1); }

.alert {
  padding: 10px 12px;
  background: color-mix(in srgb, var(--danger) 15%, transparent);
  border: 1px solid var(--danger);
  border-radius: 8px;
}

.bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}
.bar nav { display: flex; align-items: center; gap: 12px; }

.viewer { max-width: 1280px; margin: 0 auto; padding: 16px; }

.frame {
  position: relative;
  aspect-ratio: 16 / 9;
  background: #000;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}
.frame img { width: 100%; height: 100%; object-fit: contain; display: block; }
.frame:fullscreen { border-radius: 0; border: 0; }

.overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(0, 0, 0, 0.7);
  color: var(--muted);
}
.overlay[hidden] { display: none; }

.clock {
  position: absolute;
  left: 12px;
  bottom: 10px;
  padding: 2px 8px;
  background: rgba(0, 0, 0, 0.55);
  border-radius: 6px;
  font: 13px ui-monospace, monospace;
}

.controls { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }