/* iOS 26 "Liquid Glass" tokens shared by the Tier A demos and films (7 Nov 2026).
   Brand colour goes in --accent only. Import this file, then override --accent per lead. */
:root {
  --accent: #0A84FF;
  --accent-ink: #ffffff;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display", "Inter", "Helvetica Neue", Arial, sans-serif;
  --font-display: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Inter Tight", "Inter", Arial, sans-serif;

  /* system backgrounds */
  --bg: #F2F2F7;            /* grouped background (light) */
  --bg-elev: #FFFFFF;       /* cards / rows */
  --label: #000000;
  --label-2: rgba(60, 60, 67, .60);
  --label-3: rgba(60, 60, 67, .30);
  --sep: rgba(60, 60, 67, .18);

  /* glass material */
  --glass-fill: rgba(255, 255, 255, .55);
  --glass-fill-strong: rgba(255, 255, 255, .72);
  --glass-blur: 22px;
  --glass-sat: 180%;
  --glass-rim: rgba(255, 255, 255, .85);
  --glass-edge: rgba(0, 0, 0, .06);
  --glass-shadow: 0 12px 32px rgba(0, 0, 0, .12), 0 2px 6px rgba(0, 0, 0, .06);

  --r-card: 28px;
  --r-tile: 22px;
  --r-pill: 999px;
}

@media (prefers-color-scheme: dark) {
  :root.auto-dark {
    --bg: #000000; --bg-elev: #1C1C1E; --label: #FFFFFF;
    --label-2: rgba(235, 235, 245, .60); --label-3: rgba(235, 235, 245, .30); --sep: rgba(84, 84, 88, .6);
    --glass-fill: rgba(40, 40, 46, .50); --glass-fill-strong: rgba(40, 40, 46, .70);
    --glass-rim: rgba(255, 255, 255, .22); --glass-edge: rgba(0, 0, 0, .4);
    --glass-shadow: 0 16px 40px rgba(0, 0, 0, .5);
  }
}

/* The material. Add .glass to any element. */
.glass {
  position: relative;
  background: var(--glass-fill);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-sat));
  backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-sat));
  border: 0.5px solid var(--glass-edge);
  box-shadow: var(--glass-shadow), inset 0 1px 0 var(--glass-rim), inset 0 -1px 1px rgba(0, 0, 0, .04);
  isolation: isolate;
}
/* specular sheen: light falling from the top-left */
.glass::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none; z-index: -1;
  background: linear-gradient(135deg, rgba(255,255,255,.55) 0%, rgba(255,255,255,.08) 38%, rgba(255,255,255,0) 60%, rgba(255,255,255,.18) 100%);
  mix-blend-mode: soft-light;
}

/* Floating capsule tab bar (iOS 26) */
.lg-tabbar {
  position: fixed; left: 16px; right: 16px; bottom: calc(14px + env(safe-area-inset-bottom));
  height: 64px; border-radius: var(--r-pill); display: flex; align-items: center; justify-content: space-around;
  padding: 0 6px; z-index: 50;
}
.lg-tabbar .tab { flex: 1; height: 52px; border-radius: var(--r-pill); display: grid; place-items: center; gap: 2px;
  color: var(--label); font: 600 10px/1 var(--font); letter-spacing: .01em; transition: background .3s, color .3s, transform .3s cubic-bezier(.16,1,.3,1); }
.lg-tabbar .tab svg { width: 24px; height: 24px; }
.lg-tabbar .tab.on { color: var(--accent); background: rgba(255,255,255,.65); box-shadow: inset 0 1px 0 rgba(255,255,255,.9), 0 2px 8px rgba(0,0,0,.08); }
.lg-tabbar .tab:active { transform: scale(.94); }

/* Glass buttons */
.lg-btn { height: 50px; padding: 0 22px; border-radius: var(--r-pill); border: 0; font: 600 17px/1 var(--font);
  background: var(--accent); color: var(--accent-ink);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.35), 0 8px 20px color-mix(in srgb, var(--accent) 35%, transparent);
  transition: transform .25s cubic-bezier(.16,1,.3,1), filter .25s; }
.lg-btn:active { transform: scale(.96); filter: brightness(.95); }
.lg-btn.glass-btn { background: var(--glass-fill-strong); color: var(--label); }
.lg-circle { width: 44px; height: 44px; border-radius: 50%; display: grid; place-items: center; }

/* Cards, grouped lists, large title */
.lg-card { background: var(--bg-elev); border-radius: var(--r-card); box-shadow: 0 1px 2px rgba(0,0,0,.04); }
.lg-list { background: var(--bg-elev); border-radius: 18px; overflow: hidden; }
.lg-list > * + * { border-top: 0.5px solid var(--sep); }
.lg-large-title { font: 700 34px/1.12 var(--font-display); letter-spacing: -.02em; color: var(--label); }
.lg-pill { display: inline-flex; align-items: center; gap: 6px; height: 34px; padding: 0 14px; border-radius: var(--r-pill);
  font: 600 15px/1 var(--font); }