/* studio-runner.css — Design OS Unified Studio Runner UI (Adopted from Studio Specs) */
:root {
  color-scheme: dark;
  --studio-bg: #0b0b0c;
  --studio-surface: #121214;
  --studio-line: #222225;
  --studio-line-subtle: rgba(255, 255, 255, 0.08);
  --studio-text: #ededee;
  --studio-muted: #7d7d83;
  --studio-faint: #45454a;
  --studio-accent: #38bdf8;
  --studio-accent-hover: #0284c7;
  --studio-radius: 14px;
  --studio-font: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

* {
  box-sizing: border-box;
}

body.studio-body {
  margin: 0;
  min-height: 100vh;
  background: var(--studio-bg);
  color: var(--studio-text);
  font-family: var(--studio-font);
  font-size: 13px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  display: flex;
  flex-direction: column;
  align-items: center;
  overflow-x: hidden;
}

/* Studio Header Bar */
.studio-topbar {
  width: 100%;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  background: rgba(11, 11, 12, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--studio-line);
  position: sticky;
  top: 0;
  z-index: 10000;
}

.studio-brand-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.studio-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--studio-text);
  text-decoration: none;
}

.studio-logo svg {
  width: 20px;
  height: 20px;
}

.studio-meta-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 8px;
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--studio-line);
  color: var(--studio-muted);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
}

.studio-top-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.studio-action-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 32px;
  padding: 0 12px;
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--studio-line);
  color: var(--studio-text);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s ease;
}

.studio-action-btn:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: #3f3f46;
}

.studio-action-btn.primary {
  background: var(--studio-text);
  color: var(--studio-bg);
  border-color: transparent;
}

.studio-action-btn.primary:hover {
  background: #ffffff;
  opacity: 0.92;
}

/* Studio Stage Container */
.studio-stage-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px 20px 16px;
  width: 100%;
  max-width: 1240px;
}

.studio-stage-frame {
  position: relative;
  border-radius: var(--studio-radius);
  overflow: hidden;
  background: #000000;
  box-shadow: 0 0 0 1px var(--studio-line), 0 30px 80px -40px rgba(0, 0, 0, 0.95);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Transport Controls Dock */
.studio-transport-bar {
  width: 100%;
  max-width: 960px;
  margin-top: 18px;
  padding: 10px 16px;
  background: rgba(18, 18, 20, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: 12px;
  border: 1px solid var(--studio-line);
  box-shadow: 0 8px 24px -8px rgba(0, 0, 0, 0.6);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.studio-transport-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.studio-transport-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.studio-icon-button {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  border: 1px solid var(--studio-line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--studio-text);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.15s ease;
  font-size: 14px;
}

.studio-icon-button:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #52525b;
}

.studio-icon-button.primary {
  background: #27272a;
  border-color: #3f3f46;
}

.studio-icon-button.primary:hover {
  background: #3f3f46;
  border-color: #71717a;
}

.studio-timecode {
  font-family: var(--studio-font);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  color: var(--studio-muted);
  display: flex;
  align-items: center;
  gap: 4px;
  user-select: none;
}

.studio-timecode strong {
  color: var(--studio-text);
  font-weight: 600;
}

.studio-scrubber-lane {
  flex: 1 1 auto;
  position: relative;
  display: flex;
  align-items: center;
}

.studio-scrubber {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.12);
  outline: none;
  cursor: pointer;
  transition: background 0.2s ease;
}

.studio-scrubber:hover {
  background: rgba(255, 255, 255, 0.18);
}

.studio-scrubber::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #ffffff;
  box-shadow: 0 0 0 2px rgba(0, 0, 0, 0.4), 0 2px 6px rgba(0, 0, 0, 0.8);
  cursor: pointer;
  transition: transform 0.1s ease;
}

.studio-scrubber::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.studio-transport-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Scene Jump Pills Row */
.studio-scenes-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding-top: 6px;
  border-top: 1px solid var(--studio-line-subtle);
  overflow-x: auto;
}

.studio-scene-pills {
  display: flex;
  align-items: center;
  gap: 6px;
}

.studio-scene-pill {
  padding: 4px 10px;
  border-radius: 6px;
  border: 1px solid transparent;
  background: rgba(255, 255, 255, 0.04);
  color: var(--studio-muted);
  font-size: 11px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.studio-scene-pill:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--studio-text);
}

.studio-scene-pill.active {
  background: rgba(56, 189, 248, 0.15);
  border-color: rgba(56, 189, 248, 0.4);
  color: #38bdf8;
}

.studio-speed-group {
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--studio-line);
  border-radius: 6px;
  padding: 2px;
}

.studio-speed-btn {
  padding: 2px 8px;
  border-radius: 4px;
  border: 0;
  background: transparent;
  color: var(--studio-muted);
  font-size: 11px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
}

.studio-speed-btn.active {
  background: rgba(255, 255, 255, 0.12);
  color: var(--studio-text);
}

/* Responsive */
@media (max-width: 800px) {
  .studio-topbar {
    padding: 0 14px;
  }
  .studio-meta-tag {
    display: none;
  }
  .studio-stage-container {
    padding: 12px 10px;
  }
  .studio-transport-bar {
    padding: 8px 12px;
  }
}

/* Clean Export Override for Headless Renderers */
.clean-export .studio-topbar,
.clean-export .studio-transport-bar {
  display: none !important;
}
.clean-export .studio-stage-container {
  padding: 0 !important;
  max-width: none !important;
  width: auto !important;
}
.clean-export .studio-stage-frame {
  border-radius: 0 !important;
  box-shadow: none !important;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}