:root {
  color-scheme: dark;
  --bg: #0f1115;
  --card: #171a21;
  --panel: #1f232d;
  --text: #f2f4f8;
  --muted: #9aa3b2;
  --accent: #39c5bb;
  --accent-strong: #3fe6da;
  --danger: #ff5c7a;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
  --radius-lg: 18px;
  --radius-md: 12px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Cairo", "Space Grotesk", "Segoe UI", Tahoma, sans-serif;
  background: radial-gradient(1200px 600px at 10% -20%, #22304a, transparent),
    radial-gradient(800px 500px at 90% 0%, #1b3f3b, transparent),
    var(--bg);
  color: var(--text);
  min-height: 100vh;
}

.page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 28px 20px 40px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 22px;
}

.brand {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 0.3px;
}

.tag {
  color: var(--muted);
  font-size: 14px;
}

.main {
  display: grid;
  gap: 22px;
}

.player {
  position: relative;
  background: var(--card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  aspect-ratio: 16 / 9;
}

video {
  width: 100%;
  height: 100%;
  display: block;
  background: #0b0d12;
}

.overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background: linear-gradient(140deg, rgba(10, 13, 20, 0.6), rgba(10, 13, 20, 0.2));
  pointer-events: none;
  transition: opacity 200ms ease;
}

.overlay.hidden {
  opacity: 0;
}

.overlay-card {
  background: rgba(20, 24, 32, 0.85);
  padding: 18px 20px;
  border-radius: var(--radius-md);
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.08);
  max-width: 70%;
}

.overlay-title {
  font-weight: 700;
  margin-bottom: 6px;
}

.overlay-text {
  color: var(--muted);
  font-size: 14px;
}

.controls {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 14px 16px 16px;
  background: linear-gradient(0deg, rgba(5, 7, 12, 0.92), rgba(5, 7, 12, 0));
  display: grid;
  gap: 10px;
  pointer-events: auto;
}

.controls .row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.btn {
  background: var(--panel);
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  padding: 6px 14px;
  cursor: pointer;
  font-size: 13px;
  transition: all 180ms ease;
}

.btn:hover {
  border-color: rgba(255, 255, 255, 0.3);
}

.btn:active {
  transform: translateY(1px);
}

.btn.primary {
  background: var(--accent);
  color: #0a1014;
  font-weight: 600;
}

.time {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--muted);
}

.sep {
  opacity: 0.5;
}

.progress {
  width: 100%;
}

input[type="range"] {
  accent-color: var(--accent-strong);
}

.volume {
  width: 110px;
}

.source {
  background: var(--card);
  border-radius: var(--radius-md);
  padding: 16px;
  box-shadow: var(--shadow);
}

.source-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

.source input {
  flex: 1 1 320px;
  background: #0f131a;
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 10px;
}

.source input[type="file"] {
  padding: 8px;
  background: #121821;
}

.hint-inline {
  color: var(--muted);
  font-size: 13px;
}

.hint {
  margin-top: 8px;
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 720px) {
  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .controls {
    padding: 12px;
  }

  .volume {
    flex: 1 1 120px;
  }
}