/*
 * TubeBurn WebExport stylesheet
 * Palette mirrors SkiaMenuRenderer (src/TubeBurn.Infrastructure/SkiaMenuRenderer.cs):
 *   L1: white bg / #1B2442 text / #CCCCCC borders / #333333 header
 *   L2: dark overlay over blurred banner / #1B2442 fallback / white text
 */

:root {
  /* DVD anamorphic 16:9 display size (720×480 stored → 854×480 displayed). */
  --stage-width: 854px;
  --stage-height: 480px;
  --color-l1-bg: #FFFFFF;
  --color-l1-text: #1B2442;
  --color-l1-border: #CCCCCC;
  --color-l1-header: #333333;
  --color-l2-fallback-bg: #1B2442;
  --color-l2-overlay: rgba(0, 0, 0, 0.627);   /* α160/255 */
  --color-l2-text: #FFFFFF;
  --color-focus: #FFD400;
  --color-remote-bg: #1a1a1a;
  --color-remote-text: #e8e8e8;
  --color-remote-hover: #2a2a2a;
  --color-remote-disabled: #555;
  /* Chrome strip uses regular-width Open Sans — no condensed squish. */
  --font-stack-chrome: "Open Sans", Arial, Helvetica, sans-serif;
  /* Stage/menus use semi-condensed width matching SkiaMenuRenderer. */
  --font-stack-stage: "Open Sans", "Open Sans Condensed", "Arial Narrow", Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: #000;
  font-family: var(--font-stack-chrome);
  font-weight: 400;
  color: #eee;
  overflow: hidden;
}

/* Canvas is 854×480 (post-anamorphic): normal-width fonts match what DVD hardware
   shows after stretching Skia's SemiCondensed (87.5%) render horizontally by 32/27. */
.stage { font-family: var(--font-stack-stage); font-weight: 600; }

/* ========================= Chrome strip (DVD remote) ========================= */

.remote {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 44px;
  background: var(--color-remote-bg);
  color: var(--color-remote-text);
  display: flex;
  align-items: center;
  padding: 0 12px;
  gap: 16px;
  z-index: 10;
  border-bottom: 1px solid #333;
  font-size: 13px;
}

.remote-buttons { display: flex; gap: 4px; }

.remote-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--color-remote-text);
  padding: 4px 10px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-stack-chrome);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  border-radius: 3px;
  transition: background-color 120ms;
}
.remote-btn:hover:not(:disabled) { background: var(--color-remote-hover); }
.remote-btn:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 1px; }
.remote-btn:disabled { color: var(--color-remote-disabled); cursor: default; }
.remote-icon { font-size: 14px; line-height: 1; }

.breadcrumb {
  flex: 1;
  text-align: right;
  font-size: 12px;
  color: #aaa;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}

/* ========================= Stage (1280×720 DVD canvas) ========================= */

.stage-wrap {
  position: absolute;
  top: 44px; left: 0; right: 0; bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px;
}

.stage {
  position: relative;
  width: var(--stage-width);
  height: var(--stage-height);
  max-width: 100%;
  max-height: 100%;
  aspect-ratio: 16 / 9;
  background: #000;
  overflow: hidden;
  /* Responsive down-scaling: shrink to viewport, keep aspect */
  transform-origin: center center;
}
.stage:focus { outline: none; }
.stage:focus-visible { outline: 2px solid var(--color-focus); }

.menu-layer {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.player-layer {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  background: #000;
}
.player-layer iframe { width: 100%; height: 100%; border: 0; }

.next-overlay {
  position: absolute;
  bottom: 16px;
  right: 16px;
  background: rgba(0,0,0,0.7);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.3);
  padding: 8px 14px;
  font-family: inherit;
  font-size: 16px;
  cursor: pointer;
  border-radius: 4px;
  z-index: 2;
  opacity: 0;
  transition: opacity 180ms;
}
.next-overlay[data-visible="true"] { opacity: 1; }

/* ========================= Menu page scaffolding ========================= */

.menu-page {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

/* L1: Channel Select */
.menu-page--channelSelect { background: var(--color-l1-bg); color: var(--color-l1-text); }
.menu-page--channelSelect .page-header {
  position: absolute;
  /* Matches SkiaMenuRenderer L1: DrawText(MenuId, 60, 50) on 720×480 canvas.
     Scaled to 854: left=71, baseline=50 → top≈22 for 35px font. */
  left: 71px;
  top: 22px;
  right: 20px;
  /* Matches SkiaMenuRenderer L1: baseFontSize × 1.45 at base=24 → 35px. */
  font-size: 35px;
  font-weight: 700;
  color: var(--color-l1-header);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* L2: Video Select */
.menu-page--videoSelect { background: var(--color-l2-fallback-bg); color: var(--color-l2-text); }
.menu-page--videoSelect .page-banner {
  position: absolute; inset: 0;
  background-position: center;
  background-size: cover;
  filter: blur(8px) brightness(0.6);
  transform: scale(1.06);
  z-index: 0;
}
.menu-page--videoSelect .page-overlay {
  position: absolute; inset: 0;
  background: var(--color-l2-overlay);
  z-index: 1;
}
/* Small avatar circle in L2 header — Skia (38,38) radius 18 → ~24 scaled.
   Using 40px diameter with matching position for simplicity. */
.menu-page--videoSelect .page-avatar {
  position: absolute;
  left: 20px;
  top: 20px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-position: center;
  background-size: cover;
  background-color: #333;
  z-index: 2;
}
.menu-page--videoSelect .page-header {
  position: absolute;
  /* Matches Skia L2: avatar at (38,38) r=18, header text at (66, 48) on 720×480.
     Scaled to 854: left=78, baseline=48 → top≈18. */
  left: 78px;
  top: 18px;
  right: 20px;
  /* Matches SkiaMenuRenderer L2: baseFontSize × 1.36 at base=24 → 33px. */
  font-size: 33px;
  font-weight: 700;
  color: var(--color-l2-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  text-shadow: 0 2px 6px rgba(0,0,0,0.6);
  z-index: 2;
}

/* ========================= Buttons ========================= */

.mbtn {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 10px;
  border: 1px solid var(--color-l1-border);
  background: transparent;
  cursor: pointer;
  font-family: var(--font-stack-stage);
  font-weight: 600;
  /* Matches SkiaMenuRenderer baseFontSize = Settings.FontSize (24 default). */
  font-size: 24px;
  text-align: left;
  overflow: hidden;
  z-index: 2;
  transition: background-color 100ms, border-color 100ms;
}

/* L1 buttons: banner image as row background, with adaptive overlay + text.
   Matches SkiaMenuRenderer L1: clipped rounded rect with banner scaled-to-fit,
   semi-transparent dim/lightening overlay, circle avatar, and drop-shadow text. */
.menu-page--channelSelect .mbtn {
  color: var(--color-l1-text);
  background: transparent;
  border-color: var(--color-l1-border);
  border-radius: 4px;
  padding: 0;
  gap: 0;
}
.menu-page--channelSelect .mbtn-banner {
  position: absolute;
  inset: 0;
  background-position: center;
  background-size: cover;
  z-index: 0;
}
.menu-page--channelSelect .mbtn-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.47);   /* default dark-banner overlay */
  z-index: 1;
}
.menu-page--channelSelect .mbtn[data-dark="false"] .mbtn-overlay {
  background: rgba(255, 255, 255, 0.47);   /* light-banner: lighten */
}
.menu-page--channelSelect .mbtn .mbtn-avatar {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  border: 2px solid rgba(255,255,255,0.6);
}
.menu-page--channelSelect .mbtn .mbtn-label {
  position: absolute;
  left: 64px;   /* 12 + 40 (avatar) + 12 gap */
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  color: #fff;
  text-shadow: 1px 1px 0 rgba(0,0,0,0.63);
}
.menu-page--channelSelect .mbtn[data-dark="false"] .mbtn-label {
  color: var(--color-l1-text);
  text-shadow: 1px 1px 0 rgba(255,255,255,0.63);
}
.menu-page--channelSelect .mbtn:hover .mbtn-overlay,
.menu-page--channelSelect .mbtn[aria-current="true"] .mbtn-overlay {
  background: rgba(27, 36, 66, 0.72);
}
.menu-page--channelSelect .mbtn:hover .mbtn-label,
.menu-page--channelSelect .mbtn[aria-current="true"] .mbtn-label {
  color: #fff;
  text-shadow: 1px 1px 2px rgba(0,0,0,0.8);
}
.menu-page--channelSelect .mbtn:hover,
.menu-page--channelSelect .mbtn[aria-current="true"] {
  border-color: var(--color-focus);
}

.menu-page--videoSelect .mbtn {
  color: var(--color-l2-text);
  background: rgba(27, 36, 66, 0.55);
  border-color: rgba(255,255,255,0.22);
}
.menu-page--videoSelect .mbtn:hover,
.menu-page--videoSelect .mbtn[aria-current="true"] {
  background: rgba(255, 212, 0, 0.92);
  color: #1B2442;
  border-color: #FFD400;
}

.mbtn:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 1px; }

.mbtn-thumb {
  flex-shrink: 0;
  width: 80px; height: 45px;
  background-position: center;
  background-size: cover;
  background-color: rgba(0,0,0,0.3);
  border-radius: 2px;
}

.mbtn-avatar {
  flex-shrink: 0;
  width: 40px; height: 40px;
  border-radius: 50%;
  background-position: center;
  background-size: cover;
  background-color: #333;
}

.mbtn-label {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-weight: 600;
}

/* Nav buttons (Prev / Back / Next) are shorter and centered */
.mbtn--nav {
  justify-content: center;
  padding: 0 14px;
}

.unavailable-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  padding: 40px;
  text-align: center;
  color: #fff;
  background: #1B2442;
}
.unavailable-title { font-size: 22px; font-weight: 700; margin-bottom: 10px; }
.unavailable-subtitle { font-size: 15px; margin-bottom: 6px; opacity: 0.85; }
.unavailable-reason { font-size: 12px; opacity: 0.6; margin-bottom: 20px; }
.unavailable-link {
  padding: 10px 18px; background: #FFD400; color: #1B2442;
  text-decoration: none; border-radius: 3px; font-weight: 700;
}

.noscript-notice {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #000;
  color: #fff;
  font-size: 18px;
  z-index: 100;
}

/* Responsive: always scale stage to fit viewport while preserving aspect.
   Stage is 854×480 native; chrome strip is 44px; padding is 8px each side.
   calc(length / length) yields a unitless number (CSS values level 4). */
.stage {
  transform: scale(min(
    calc((100vw - 24px) / 854px),
    calc((100vh - 64px) / 480px)
  ));
}

/* Fullscreen: stretch stage to viewport */
.stage:fullscreen { transform: none !important; max-width: 100vw; max-height: 100vh; width: 100vw; height: 100vh; }
.stage:-webkit-full-screen { transform: none !important; width: 100vw; height: 100vh; }