/* ===========================================================================
   VSightX — Liquid glass components
   Requires tokens.css. Bootstrap-additive: `.btn-glass` is a modifier on your
   existing `.btn .btn-<variant>`; everything else is `glass-` prefixed so it
   never collides. All colour comes from the --<variant>-1/-2/-line triplets.
   =========================================================================== */

/* ---- Variant assignment (vars only — Bootstrap-safe) ---------------------- */
.btn-primary,   .glass-badge-primary,   .glass-alert-primary   { --g1: var(--primary-1);   --g2: var(--primary-2);   --gline: var(--primary-line); }
.btn-secondary, .glass-badge-secondary, .glass-alert-secondary { --g1: var(--secondary-1); --g2: var(--secondary-2); --gline: var(--secondary-line); }
.btn-success,   .glass-badge-success,   .glass-alert-success   { --g1: var(--success-1);   --g2: var(--success-2);   --gline: var(--success-line); }
.btn-danger,    .glass-badge-danger,    .glass-alert-danger    { --g1: var(--danger-1);    --g2: var(--danger-2);    --gline: var(--danger-line); }
.btn-warning,   .glass-badge-warning,   .glass-alert-warning   { --g1: var(--warning-1);   --g2: var(--warning-2);   --gline: var(--warning-line); }
.btn-info,      .glass-badge-info,      .glass-alert-info      { --g1: var(--info-1);      --g2: var(--info-2);      --gline: var(--info-line); }

/* ================= BUTTONS =================================================
   .btn base comes from Bootstrap in your app; repeated here so the sheet also
   works standalone. .btn-glass is the modifier you actually copy.            */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  font-family: var(--font-ui); font-weight: 600; font-size: 15px; line-height: 1;
  padding: .95rem 1.4rem; border-radius: var(--r-lg); border: 1px solid transparent;
  cursor: pointer; text-decoration: none; color: #fff; background: #26324C;
  transition: transform var(--t-fast) var(--ease), box-shadow var(--t-base) var(--ease), filter var(--t-base) var(--ease);
}

.btn-glass {
  position: relative; overflow: hidden; color: #fff;
  background: linear-gradient(180deg, var(--g1), var(--g2));
  border: 1px solid var(--glass-rim-2);
  -webkit-backdrop-filter: var(--glass-blur-sm); backdrop-filter: var(--glass-blur-sm);
  box-shadow: var(--glass-gloss-2), 0 8px 22px rgba(2, 8, 24, .40);
  text-shadow: 0 1px 2px rgba(0, 0, 0, .32);
}
/* Top gloss — the specular highlight that reads as a curved surface. */
.btn-glass::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(180deg, rgba(255,255,255,.24), rgba(255,255,255,0) 46%);
}
.btn-glass:hover { filter: brightness(1.08); transform: translateY(-1px);
  box-shadow: var(--glass-gloss-2), 0 14px 30px rgba(2, 8, 24, .48); }
.btn-glass:active { transform: translateY(0); filter: brightness(.97); }
.btn-glass:focus-visible { outline: none;
  box-shadow: var(--glass-gloss-2), 0 0 0 3px color-mix(in srgb, var(--gline) 55%, transparent); }
.btn-glass:disabled, .btn-glass.disabled { opacity: .42; filter: grayscale(.35); cursor: not-allowed; transform: none; }

.btn-glass-outline {
  position: relative; overflow: hidden; color: var(--ink); font-weight: 600;
  background: var(--glass-fill);
  border: 1px solid color-mix(in srgb, var(--gline) 55%, transparent);
  -webkit-backdrop-filter: var(--glass-blur-sm); backdrop-filter: var(--glass-blur-sm);
  box-shadow: var(--glass-gloss);
}
.btn-glass-outline:hover {
  background: linear-gradient(180deg,
    color-mix(in srgb, var(--g1) 55%, transparent),
    color-mix(in srgb, var(--g2) 55%, transparent));
  color: #fff; transform: translateY(-1px);
}
.btn-glass-outline:focus-visible { outline: none; box-shadow: 0 0 0 3px color-mix(in srgb, var(--gline) 50%, transparent); }

.btn-lg { padding: 1.1rem 1.6rem; font-size: 16px; border-radius: var(--r-xl); }
.btn-sm { padding: .6rem 1rem; font-size: 13px; border-radius: var(--r-sm); }
.btn-block { width: 100%; }
.btn-icon { padding: .8rem; width: 46px; }

/* ================= CARD ==================================================== */
.glass-card {
  position: relative; border-radius: var(--r-xl); padding: var(--sp-5);
  background: var(--glass-fill);
  border: 1px solid var(--glass-rim);
  -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur);
  box-shadow: var(--glass-gloss), var(--glass-drop);
}
.glass-card h3 { font-size: var(--fs-h3); font-weight: 600; margin: 0; }
.glass-card .muted { color: var(--ink-dim); font-size: var(--fs-sm); margin-top: 3px; }

/* Interactive cards pick up the logo's bracket at the corners instead of the
   whole panel lighting up — the mark doing real work in the interface. */
.glass-card-interactive { cursor: pointer; transition: border-color var(--t-base) var(--ease), transform var(--t-base) var(--ease); }
.glass-card-interactive:hover { border-color: var(--glass-rim-2); transform: translateY(-2px); }
.glass-card-interactive::after {
  content: ""; position: absolute; inset: 9px; pointer-events: none;
  border-radius: var(--r-md); opacity: 0;
  background:
    linear-gradient(var(--primary-line), var(--primary-line)) 0 0 / 14px 2px no-repeat,
    linear-gradient(var(--primary-line), var(--primary-line)) 0 0 / 2px 14px no-repeat,
    linear-gradient(var(--primary-line), var(--primary-line)) 100% 100% / 14px 2px no-repeat,
    linear-gradient(var(--primary-line), var(--primary-line)) 100% 100% / 2px 14px no-repeat;
  transition: opacity var(--t-base) var(--ease), inset var(--t-base) var(--ease);
}
.glass-card-interactive:hover::after { opacity: 1; inset: 7px; }

/* ================= FIELDS ================================================== */
.glass-field { display: flex; flex-direction: column; gap: 7px; margin-top: var(--sp-4); }
.glass-field label { font-size: 12.5px; color: var(--ink-dim); font-weight: 500; }
.glass-input, .glass-select, .glass-textarea {
  font-family: var(--font-ui); font-size: var(--fs-md); color: var(--ink); width: 100%;
  background: var(--glass-fill-2); border: 1px solid var(--glass-rim);
  border-radius: var(--r-md); padding: .7rem .85rem;
  -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
  transition: border-color var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease);
}
.glass-input::placeholder, .glass-textarea::placeholder { color: var(--ink-mute); }
.glass-input:focus, .glass-select:focus, .glass-textarea:focus {
  outline: none; border-color: var(--primary-line);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary-line) 32%, transparent);
}
.glass-input[aria-invalid='true'] { border-color: var(--danger-line); }
.glass-select {
  appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--ink-dim) 50%),
    linear-gradient(135deg, var(--ink-dim) 50%, transparent 50%);
  background-position: calc(100% - 18px) 55%, calc(100% - 13px) 55%;
  background-size: 5px 5px, 5px 5px; background-repeat: no-repeat;
}
.glass-hint { font-size: var(--fs-xs); color: var(--ink-mute); }
.glass-error { font-size: var(--fs-xs); color: var(--danger-line); }

/* ================= COMBOBOX ================================================ */
.glass-combobox { position: relative; }
.gc-control {
  display: flex; align-items: center;
  background: var(--glass-fill-2); border: 1px solid var(--glass-rim); border-radius: var(--r-md);
  -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
  transition: border-color var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease);
}
.glass-combobox.open .gc-control, .gc-control:focus-within {
  border-color: var(--primary-line);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary-line) 30%, transparent);
}
.gc-input { flex: 1; min-width: 0; background: transparent; border: 0; outline: none; color: var(--ink);
  font-family: var(--font-ui); font-size: var(--fs-md); padding: .7rem .3rem .7rem .85rem; }
.gc-input::placeholder { color: var(--ink-mute); }
.gc-toggle { flex: none; width: 34px; height: 38px; display: grid; place-items: center; background: transparent;
  border: 0; color: var(--ink-dim); cursor: pointer; border-radius: 9px; margin-right: 2px; }
.gc-toggle:hover { color: var(--ink); }
.gc-toggle svg { width: 16px; height: 16px; transition: transform var(--t-base) var(--ease); }
.glass-combobox.open .gc-toggle svg { transform: rotate(180deg); }

.gc-menu {
  position: absolute; top: calc(100% + 6px); left: 0; right: 0; z-index: 40;
  list-style: none; margin: 0; padding: 6px; max-height: 224px; overflow: auto;
  background: var(--glass-panel); border: 1px solid var(--glass-rim); border-radius: var(--r-lg);
  -webkit-backdrop-filter: var(--glass-blur-lg); backdrop-filter: var(--glass-blur-lg);
  box-shadow: var(--glass-gloss), var(--glass-drop-lg);
  opacity: 0; transform: translateY(-6px) scale(.99); pointer-events: none;
  transition: opacity var(--t-fast) var(--ease), transform var(--t-fast) var(--ease);
}
.glass-combobox.open .gc-menu { opacity: 1; transform: none; pointer-events: auto; }
.gc-menu::-webkit-scrollbar { width: 8px; }
.gc-menu::-webkit-scrollbar-thumb { background: var(--glass-rim); border-radius: 8px; }
.gc-option { display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: .62rem .7rem; border-radius: 9px; font-size: 13.5px; color: var(--ink); cursor: pointer; }
.gc-option:hover, .gc-option.is-active { background: var(--glass-fill-2); }
.gc-option.is-selected { color: #fff;
  background: linear-gradient(180deg, var(--primary-1), var(--primary-2));
  box-shadow: inset 0 1px 0 rgba(255,255,255,.28); }
.gc-option .chk { width: 15px; height: 15px; flex: none; opacity: 0; }
.gc-option.is-selected .chk { opacity: 1; }
.gc-empty { padding: .62rem .7rem; font-size: var(--fs-sm); color: var(--ink-dim); }

/* ================= SWITCH ================================================== */
.glass-switch-row { display: flex; align-items: center; justify-content: space-between; gap: 14px; margin-top: var(--sp-4); }
.glass-switch { width: 48px; height: 27px; border-radius: 14px; border: 1px solid var(--glass-rim-2);
  background: var(--glass-fill-2); position: relative; cursor: pointer; flex: none;
  transition: background var(--t-base) var(--ease), border-color var(--t-base) var(--ease); }
.glass-switch i { position: absolute; top: 2px; left: 2px; width: 21px; height: 21px; border-radius: 50%;
  background: #fff; box-shadow: 0 1px 3px rgba(0,0,0,.42); transition: left var(--t-base) var(--ease); }
.glass-switch[aria-checked="true"] { background: linear-gradient(180deg, var(--primary-1), var(--primary-2)); border-color: transparent; }
.glass-switch[aria-checked="true"] i { left: 23px; }
.glass-switch:focus-visible { outline: none; box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary-line) 45%, transparent); }

/* ================= BADGES ================================================== */
.badge-row { display: flex; flex-wrap: wrap; gap: 10px; }
.glass-badge {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: var(--fs-xs); font-weight: 600; padding: .42rem .8rem; border-radius: var(--r-full);
  color: #fff; text-shadow: 0 1px 2px rgba(0,0,0,.32);
  background: linear-gradient(180deg, var(--g1), var(--g2));
  border: 1px solid var(--glass-rim-2);
  -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.32);
}
.glass-badge .d { width: 6px; height: 6px; border-radius: 50%; background: #fff; opacity: .9; }

/* ================= ALERTS ================================================== */
.glass-alert {
  display: flex; gap: 12px; align-items: flex-start; padding: 14px 16px; margin-top: var(--sp-3);
  border-radius: var(--r-lg); background: var(--glass-fill);
  border: 1px solid var(--glass-rim); border-left: 3px solid var(--gline);
  -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
  box-shadow: var(--glass-gloss);
}
.glass-alert .ic { width: 30px; height: 30px; border-radius: 9px; flex: none; display: grid; place-items: center;
  color: #fff; background: linear-gradient(180deg, var(--g1), var(--g2)); }
.glass-alert b { font-size: 13.5px; font-weight: 600; }
.glass-alert p { font-size: 12.5px; color: var(--ink-dim); margin: 2px 0 0; }

/* ================= TABS ==================================================== */
.glass-tabs { display: inline-flex; padding: 4px; gap: 2px; border-radius: var(--r-lg);
  background: var(--glass-fill); border: 1px solid var(--glass-rim);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  box-shadow: var(--glass-gloss); }
.glass-tabs button { font-size: 13.5px; font-weight: 600; color: var(--ink-dim); background: transparent;
  border: 0; cursor: pointer; padding: 9px 16px; border-radius: var(--r-sm); transition: color var(--t-fast) var(--ease); }
.glass-tabs button:hover { color: var(--ink); }
.glass-tabs button[aria-pressed="true"] { color: #fff;
  background: linear-gradient(180deg, var(--primary-1), var(--primary-2));
  box-shadow: inset 0 1px 0 rgba(255,255,255,.32); }

/* ================= PROGRESS ================================================ */
.glass-progress { height: 10px; border-radius: var(--r-full); background: var(--glass-fill-2);
  border: 1px solid var(--glass-rim); overflow: hidden; margin-top: 8px; }
.glass-progress i { display: block; height: 100%; border-radius: var(--r-full);
  background: linear-gradient(90deg, var(--primary-2), var(--primary-line));
  box-shadow: 0 0 12px color-mix(in srgb, var(--primary-line) 45%, transparent); }
.progress-cap { display: flex; justify-content: space-between; font-size: var(--fs-xs); color: var(--ink-dim); }
.progress-cap b { font-family: var(--font-mono); color: var(--ink); }

/* ================= NAV ===================================================== */
.glass-rail { display: grid; gap: 2px; padding: 6px; border-radius: var(--r-lg);
  background: var(--glass-fill); border: 1px solid var(--glass-rim);
  -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur);
  box-shadow: var(--glass-gloss); }
.glass-nav-item { display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: var(--r-sm);
  color: var(--ink-dim); font-weight: 500; font-size: 13.5px; text-decoration: none;
  transition: background var(--t-fast) var(--ease), color var(--t-fast) var(--ease); }
.glass-nav-item:hover { background: var(--glass-fill-2); color: var(--ink); }
/* Active nav is a quiet tint plus a lit edge, not a full warm slab — the
   segmented tabs are already carrying a solid primary, and two of them on one
   screen makes the whole page read warm. */
.glass-nav-item.active { color: var(--ink);
  background: color-mix(in srgb, var(--primary-1) 20%, var(--glass-fill-2));
  box-shadow: inset 2px 0 0 var(--primary-line), inset 0 1px 0 rgba(255,255,255,.16); }

/* ===========================================================================
   PRODUCT PATTERNS — glass over a live camera feed
   The rest of the kit floats on the app's blue scene. These float on video,
   which is unpredictable, so they carry more tint and a stronger rim.
   =========================================================================== */

.glass-stage, .glass-tile {
  position: relative; overflow: hidden; border-radius: var(--r-2xl);
  background: radial-gradient(120% 90% at 68% 18%, #16233F 0%, #0B1424 55%, #050912 100%);
  border: 1px solid var(--glass-rim);
  box-shadow: var(--glass-gloss), var(--glass-drop-lg);
}
.glass-tile { border-radius: var(--r-xl); aspect-ratio: 16 / 9; }
.glass-tile-speaking { border-color: color-mix(in srgb, var(--info-line) 60%, transparent);
  box-shadow: var(--glass-gloss), 0 0 0 1px color-mix(in srgb, var(--info-line) 35%, transparent), 0 18px 44px rgba(2,8,24,.5); }

/* Anything laid over video: heavier tint, so it reads on a dark engine bay and
   on a bright yard alike. */
.glass-hud {
  background: rgba(6, 12, 26, .58);
  -webkit-backdrop-filter: var(--glass-blur-lg); backdrop-filter: var(--glass-blur-lg);
  border: 1px solid var(--glass-rim-2); border-radius: var(--r-md);
  box-shadow: var(--glass-gloss);
}

/* AR anchor — the tracking bracket from the logo, doing its literal job. */
.glass-anchor { position: absolute; width: 104px; height: 104px; pointer-events: none; }
.glass-anchor::before, .glass-anchor::after {
  content: ""; position: absolute; width: 26px; height: 26px; border: 2.5px solid var(--info-line);
  filter: drop-shadow(0 0 6px color-mix(in srgb, var(--info-line) 55%, transparent));
}
.glass-anchor::before { top: 0; left: 0; border-right: 0; border-bottom: 0; border-radius: 5px 0 0 0; }
.glass-anchor::after { bottom: 0; right: 0; border-left: 0; border-top: 0; border-radius: 0 0 5px 0; }
.glass-anchor-label {
  position: absolute; top: -10px; left: calc(100% + 14px);
  display: flex; flex-direction: column; gap: 2px; padding: 8px 12px; white-space: nowrap;
  background: rgba(6, 12, 26, .74);
  -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur);
  border: 1px solid color-mix(in srgb, var(--info-line) 32%, transparent);
  border-left: 2px solid var(--info-line); border-radius: var(--r-sm);
  box-shadow: var(--glass-gloss);
}
.glass-anchor-label b { font-size: var(--fs-sm); font-weight: 600; color: #fff; }
.glass-anchor-label span { font-family: var(--font-mono); font-size: var(--fs-xs); color: var(--info-line); }

/* Live translation caption. Source line quiet, translation carries the weight,
   confidence always visible. */
.glass-caption {
  display: flex; flex-direction: column; gap: 3px; padding: 12px 16px;
  background: rgba(6, 12, 26, .68);
  -webkit-backdrop-filter: var(--glass-blur-lg); backdrop-filter: var(--glass-blur-lg);
  border: 1px solid var(--glass-rim); border-left: 2px solid var(--primary-line);
  border-radius: var(--r-md); box-shadow: var(--glass-gloss);
}
.glass-caption-low { border-left-color: var(--warning-line); }
.glass-caption-meta { display: flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: var(--fs-label); letter-spacing: .08em;
  text-transform: uppercase; color: var(--ink-mute); }
.glass-caption-source { font-size: var(--fs-sm); color: var(--ink-dim); }
.glass-caption-target { font-size: var(--fs-lg); font-weight: 500; line-height: 1.45; color: #fff; }

/* On air. The only looping animation in the kit — it means someone is being
   filmed, so it earns the attention it takes. */
.glass-live {
  display: inline-flex; align-items: center; gap: 8px; height: 28px; padding: 0 11px 0 9px;
  font-family: var(--font-mono); font-size: var(--fs-xs); font-weight: 500;
  letter-spacing: .06em; text-transform: uppercase; color: #fff;
  background: rgba(255, 77, 106, .18); border: 1px solid rgba(255, 77, 106, .45);
  border-radius: var(--r-sm);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
}
.glass-live::before { content: ""; width: 7px; height: 7px; border-radius: 50%;
  background: var(--live); animation: glass-pulse 2s var(--ease) infinite; }
@keyframes glass-pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(255, 77, 106, .55); }
  50%      { opacity: .6; box-shadow: 0 0 0 6px rgba(255, 77, 106, 0); }
}

.glass-tile-name { position: absolute; left: 12px; bottom: 12px;
  display: inline-flex; align-items: center; gap: 8px; padding: 5px 10px;
  font-size: var(--fs-xs); font-weight: 550; color: #fff;
  background: rgba(6, 12, 26, .6); -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
  border-radius: var(--r-sm); }

/* Connection quality — bars, not a vague word. */
.glass-signal { display: inline-flex; align-items: flex-end; gap: 2px; height: 12px; }
.glass-signal i { width: 3px; background: var(--ink-mute); border-radius: 1px; display: block; }
.glass-signal i:nth-child(1) { height: 4px; }
.glass-signal i:nth-child(2) { height: 7px; }
.glass-signal i:nth-child(3) { height: 10px; }
.glass-signal i:nth-child(4) { height: 13px; }
.glass-signal-good i { background: var(--success-line); }
.glass-signal-fair i:nth-child(-n+2) { background: var(--warning-line); }
.glass-signal-poor i:nth-child(-n+1) { background: var(--danger-line); }

.glass-dot { width: 7px; height: 7px; border-radius: 50%; flex: none; }
.glass-dot-online { background: var(--success-line); }
.glass-dot-busy { background: var(--warning-line); }
.glass-dot-offline { background: var(--ink-mute); }

/* Avatar */
.glass-avatar { display: inline-grid; place-items: center; flex: none;
  width: 34px; height: 34px; border-radius: 50%; font-size: var(--fs-xs); font-weight: 600;
  color: var(--ink); background: var(--glass-fill-2); border: 1px solid var(--glass-rim);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px); }

/* Loading + empty */
.glass-skeleton { border-radius: var(--r-sm);
  background: linear-gradient(90deg, var(--glass-fill) 25%, var(--glass-fill-2) 50%, var(--glass-fill) 75%);
  background-size: 200% 100%; animation: glass-shimmer 1.5s linear infinite; }
@keyframes glass-shimmer { to { background-position: -200% 0; } }

.glass-empty { display: grid; place-items: center; gap: 10px; padding: var(--sp-10) var(--sp-5); text-align: center; }
.glass-empty p { margin: 0; color: var(--ink-dim); max-width: 42ch; font-size: var(--fs-sm); }

/* ---- Brand lockup --------------------------------------------------------- */
.glass-lockup { display: inline-flex; align-items: center; gap: 10px; }
.glass-lockup svg { width: 30px; height: 30px; flex: none; }
.glass-lockup span { font-size: 20px; font-weight: 700; letter-spacing: -.025em; }
.glass-lockup span i { font-style: normal; color: var(--primary-line); }