/* ============================================================
   TECHNOLOGY SECTION: capability icons + tabbed compat browser
   Reads on both light and dark page backgrounds.
   ============================================================ */

/* ---- Capability list: icon + title + one-liner ---- */
.arch-caps {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px 24px;
  margin-bottom: 24px;
}

.arch-cap {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 0;
}

/* Override bullet dot from site.css */
.arch-cap::before { display: none; }

.arch-cap-icon {
  flex: none;
  width: 44px;
  height: 44px;
  object-fit: contain;
  border-radius: var(--r-md);
  background: var(--surface-2);
  border: 1px solid var(--border);
  padding: 8px;
}

.arch-cap-body {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-top: 2px;
}

.arch-cap-body strong {
  display: block;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--fg);
}

.arch-cap-desc {
  font-size: var(--text-sm);
  color: var(--fg-2);
}

/* ============================================================
   COMPATIBILITY TABBED BROWSER
   ============================================================ */

/* ---- Outer card ---- */
.compat-wall {
  margin-top: clamp(32px, 4vw, 48px);
  padding: clamp(16px, 2.5vw, 24px);
  border-radius: var(--r-xl);
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

/* ---- Protocols header ---- */
.compat-formats {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}
.compat-fmt-lbl {
  font-family: var(--font-mono);
  font-size: .625rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--fg-muted);
}
.compat-tag {
  font-family: var(--font-mono);
  font-size: .6875rem;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--accent);
  background: var(--signal-bg);
  border: 1px solid var(--border-accent);
  border-radius: var(--r-pill);
  padding: 3px 10px;
}

/* ---- Tab list: scrollable on narrow viewports ---- */
.compat-tablist-wrap {
  margin-bottom: 18px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.compat-tablist-wrap::-webkit-scrollbar { display: none; }

.compat-tablist {
  display: inline-flex;
  gap: 4px;
  padding: 4px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  box-shadow: var(--shadow-sm);
  white-space: nowrap;
  min-width: 100%; /* stretch to card width when not scrolling */
}

.compat-tab {
  appearance: none;
  border: 0;
  border-radius: var(--r-pill);
  padding: 8px 16px;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--fg-2);
  background: transparent;
  cursor: pointer;
  flex: 1;
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.compat-tab[aria-selected="true"] {
  color: #fff;
  background: var(--accent);
  box-shadow: 0 4px 14px -8px rgba(17, 107, 248, .8);
}
.compat-tab:hover:not([aria-selected="true"]) {
  color: var(--accent);
  background: var(--signal-bg);
}
.compat-tab:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--ring);
}

/* ---- Panel zone: stable floor prevents height collapse during fade ---- */
.compat-panel-zone {
  display: grid;
  min-height: 116px;
}

/* ---- Individual panels ---- */
.compat-panel {
  grid-area: 1 / 1;
  opacity: 1;
  transition: opacity .18s var(--ease);
}
/* Fade-out state applied by JS */
.compat-panel.compat-fading {
  opacity: 0;
}
/* Fade-in start state: no transition, opacity 0 */
.compat-panel.compat-entering {
  opacity: 0;
  transition: none;
}
.compat-panel.compat-entering .compat-logo-tile {
  opacity: 0;
  transform: translateY(6px);
}

/* ---- Logo grid: large, readable tiles that wrap before logos shrink ---- */
.compat-logo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(clamp(132px, 11vw, 168px), 1fr));
  gap: 14px;
}

/* ---- Logo tile: generous wall cells for recognizable partner marks ---- */
.compat-logo-tile {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 112px;
  padding: 18px 16px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
  opacity: 1;
  transform: translateY(0);
  transition:
    opacity      .28s var(--ease),
    transform    .28s var(--ease),
    border-color var(--dur) var(--ease),
    background   var(--dur) var(--ease),
    box-shadow   var(--dur) var(--ease);
  transition-delay:
    calc(var(--compat-tile-i, 0) * 28ms),
    calc(var(--compat-tile-i, 0) * 28ms),
    0ms,
    0ms,
    0ms;
}
.compat-logo-tile:hover {
  border-color: var(--border-accent);
  background: var(--signal-bg);
  box-shadow: var(--shadow-sm);
}
.compat-logo-tile img {
  display: block;
  height: clamp(48px, 4vw, 60px);
  width: auto;
  max-width: min(126px, 82%);
  object-fit: contain;
}

/* ---- Reduced motion: instant panel switch, no crossfade ---- */
@media (prefers-reduced-motion: reduce) {
  .compat-panel          { transition: none; }
  .compat-panel.compat-fading   { display: none; }
  .compat-panel.compat-entering { opacity: 1; transition: none; }
  .compat-panel.compat-entering .compat-logo-tile,
  .compat-logo-tile {
    opacity: 1;
    transform: none;
    transition-delay: 0ms;
  }
}

/* ---- Mobile ---- */
@media (max-width: 520px) {
  .compat-tablist { min-width: max-content; } /* let it scroll naturally */
  .compat-tab { flex: none; padding: 7px 13px; }
  .compat-logo-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }
  .compat-logo-tile { min-height: 92px; padding: 14px 12px; }
  .compat-logo-tile img { height: clamp(40px, 11vw, 48px); max-width: 84%; }
}

/* ============================================================
   SDK-split compatibility (Android / Web / iOS), devices + players
   ============================================================ */
.sdk-compat { margin-top: 8px; }
.sdk-compat__plugin {
  display: flex; align-items: center; justify-content: center; gap: 14px;
  margin: 24px 0 16px;
  font-family: var(--font-display); font-weight: 700; color: var(--accent);
  font-size: .95rem; letter-spacing: .02em;
}
.sdk-compat__plugin::before, .sdk-compat__plugin::after {
  content: ""; height: 1px; flex: 1; max-width: 140px; background: var(--border);
}
.sdk-group {
  border: 1px solid var(--border); border-radius: var(--r-xl);
  background: var(--surface); padding: 20px 22px; margin-top: 16px;
}
.sdk-group__name {
  font-family: var(--font-display); font-weight: 700; color: var(--fg-strong);
  font-size: 1.05rem; margin: 0 0 14px;
}
.sdk-row { display: flex; flex-direction: column; gap: 9px; }
.sdk-row + .sdk-row { margin-top: 16px; }
.sdk-row__lbl {
  font-family: var(--font-mono); font-size: .64rem; font-weight: 700;
  letter-spacing: .1em; text-transform: uppercase; color: var(--fg-muted);
}
.sdk-compat .compat-logo-grid {
  grid-template-columns: repeat(auto-fit, minmax(clamp(104px, 9vw, 132px), 1fr));
  gap: 10px;
}
.sdk-compat .compat-logo-tile { min-height: 80px; padding: 12px 12px; border-radius: var(--r-lg); }
.sdk-compat .compat-logo-tile img { height: clamp(30px, 2.6vw, 40px); max-width: 80%; }
@media (max-width: 520px) {
  .sdk-compat .compat-logo-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .sdk-compat .compat-logo-tile { min-height: 68px; padding: 10px 8px; }
}

/* ============================================================
   Player compatibility — 3 toggle groups (Web / Android / iOS)
   Grouped environments + players by model. Generous logo sizing.
   ============================================================ */
.pl-compat { margin-top: 8px; }
.pl-group {
  border: 1px solid var(--border); border-radius: var(--r-xl);
  background: var(--surface); margin-top: 14px; overflow: hidden;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.pl-group.is-open { border-color: var(--border-accent); box-shadow: var(--shadow-sm); }
.pl-group__head {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 18px 22px; background: none; border: 0; cursor: pointer; text-align: left; color: inherit; font: inherit;
}
.pl-group__head:focus-visible { outline: none; box-shadow: 0 0 0 3px var(--ring); }
.pl-group__name { font-family: var(--font-display); font-weight: 700; color: var(--fg-strong); font-size: 1.15rem; }
.pl-group__chev { flex: none; width: 20px; height: 20px; color: var(--fg-muted); transition: transform .25s var(--ease), color .25s var(--ease); }
.pl-group.is-open .pl-group__chev { transform: rotate(180deg); color: var(--accent); }
.pl-group__body { padding: 4px 22px 24px; }
.pl-group__body[hidden] { display: none; }

/* category / section label — clean site kicker, no emoji */
.pl-cat { margin-top: 22px; }
.pl-cat:first-child { margin-top: 12px; }
.pl-cat__lbl {
  display: flex; align-items: center; gap: 10px; margin: 0 0 14px;
  font-family: var(--font-mono); font-size: .72rem; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase; color: var(--accent);
}
.pl-cat__lbl::before { content: ""; width: 20px; height: 2px; border-radius: 2px; background: var(--accent); flex: none; }
.pl-cat__lbl svg { width: 16px; height: 16px; flex: none; }
/* "Used in production" — green check, no accent bar */
.pl-cat__lbl--prod { color: #1f9d57; }
.pl-cat__lbl--prod::before { display: none; }
.pl-cards--prod .pl-card { background: var(--signal-bg); border-color: var(--border-accent); }

/* "Also supported" — collapsible toggle */
.pl-also { margin-top: 22px; border-top: 1px solid var(--border); padding-top: 4px; }
.pl-also__head {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 12px 2px; background: none; border: 0; cursor: pointer; text-align: left; color: inherit; font: inherit;
}
.pl-also__head:focus-visible { outline: none; box-shadow: 0 0 0 3px var(--ring); border-radius: var(--r-sm); }
.pl-also__lbl {
  display: flex; align-items: center; gap: 9px;
  font-family: var(--font-mono); font-size: .72rem; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase; color: var(--fg-muted);
}
.pl-also__lbl svg { width: 15px; height: 15px; flex: none; }
.pl-also__count { color: var(--fg-muted); opacity: .8; letter-spacing: .04em; }
.pl-also__chev { flex: none; width: 18px; height: 18px; color: var(--fg-muted); transition: transform .25s var(--ease), color .25s var(--ease); }
.pl-also.is-open .pl-also__chev { transform: rotate(180deg); color: var(--accent); }
.pl-also__body { padding-top: 14px; }
.pl-also__body[hidden] { display: none; }

/* grouped environments (browsers, smart TVs, OS) */
.pl-env { display: grid; grid-template-columns: repeat(auto-fit, minmax(248px, 1fr)); gap: 14px; }
.pl-env__box {
  border: 1px solid var(--border); border-radius: var(--r-lg); background: var(--surface-2);
  padding: 18px 18px 16px;
}
.pl-env__tiles { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.pl-env__tile {
  display: flex; align-items: center; justify-content: center; height: 52px; min-width: 60px;
  padding: 9px 14px; background: #fff; border: 1px solid var(--border); border-radius: var(--r-md);
}
.pl-env__tile img { max-height: 32px; max-width: 88px; width: auto; object-fit: contain; }
/* Apple OS wordmarks are wider lockups: force an explicit height so they read
   large (SVGs need a forced height; max-height alone leaves them tiny) */
.pl-env__tile img.pl-env__os { height: 21px; max-height: none; width: auto; max-width: 170px; }
/* 2x2 layout for 4-logo environment boxes (browsers, smart TVs): balanced,
   bigger tiles that fill the box instead of a thin centered row */
.pl-env__tiles--quad {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px;
  max-width: 420px; margin: 0 auto; width: 100%;
}
.pl-env__tiles--quad .pl-env__tile { height: 74px; }
.pl-env__tiles--quad .pl-env__tile img { max-height: 42px; max-width: 150px; }
@media (max-width: 520px) {
  .pl-env__tiles--quad .pl-env__tile { height: 64px; }
  .pl-env__tiles--quad .pl-env__tile img { max-height: 36px; }
}
.pl-env__tile--text { font-family: var(--font-display); font-weight: 700; color: var(--fg-strong); font-size: 1rem; min-width: 72px; }
.pl-env__cap { margin: 14px 0 0; text-align: center; font-size: var(--text-sm); color: var(--fg-2); line-height: 1.4; }

/* player cards — bigger logos, no per-card device icons */
.pl-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(168px, 1fr)); gap: 14px; }
.pl-card {
  display: flex; flex-direction: column; align-items: center; text-align: center; gap: 9px;
  padding: 18px 16px 16px; border: 1px solid var(--border); border-radius: var(--r-lg); background: var(--surface);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.pl-card:hover { border-color: var(--border-accent); box-shadow: var(--shadow-sm); }
.pl-card__logo {
  width: 100%; height: 64px; display: flex; align-items: center; justify-content: center;
  background: #fff; border: 1px solid var(--border); border-radius: var(--r-md); padding: 10px 16px;
}
.pl-card__logo img { max-height: 100%; max-width: 92%; object-fit: contain; }
.pl-card__name { font-family: var(--font-display); font-weight: 700; color: var(--fg-strong); font-size: 1rem; margin: 0; }
.pl-card__ver { font-family: var(--font-mono); font-size: .7rem; color: var(--fg-muted); margin: 0; }

/* Bitmovin "directly through" note (Q04): asterisk toggles a small popover */
.pl-card--note { position: relative; }
.pl-card__ast {
  display: inline-flex; align-items: center; justify-content: center;
  border: 0; background: none; cursor: pointer; padding: 0; margin: 0 0 0 5px;
  color: var(--fg-muted); vertical-align: middle; transition: color var(--dur) var(--ease);
}
.pl-card__ast svg { width: 15px; height: 15px; }
.pl-card__ast:hover,
.pl-card__ast[aria-expanded="true"] { color: var(--accent); }
.pl-card__ast:focus-visible { outline: none; box-shadow: 0 0 0 3px var(--ring); border-radius: 50%; }
.pl-note {
  position: absolute; z-index: 6; left: 50%; top: calc(100% - 4px); transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 9px;
  padding: 12px 14px; border: 1px solid var(--border-accent); border-radius: var(--r-md);
  background: var(--surface); box-shadow: var(--shadow-md, var(--shadow-sm)); white-space: nowrap;
}
.pl-note[hidden] { display: none; }
.pl-note__lbl { font-family: var(--font-mono); font-size: .64rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--fg-muted); }
.pl-note__logos { display: flex; align-items: center; gap: 12px; }
.pl-note__logos img { height: 40px; max-width: 118px; width: auto; object-fit: contain; background: #fff; border: 1px solid var(--border); border-radius: var(--r-sm); padding: 6px 10px; }

@media (max-width: 560px) {
  .pl-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .pl-env { grid-template-columns: 1fr; }
  .pl-group__head { padding: 15px 16px; }
  .pl-group__body { padding: 4px 16px 18px; }
}