/* ═══════════════════════════════════════════════════════════════════════
   Infosphere design system ("departure board for a building").
   Shared by every page: tokens for light + dark, base, the ink header band,
   split-flap tiles, buttons/chips/segmented switch, the theme toggle, the
   footer ticker, the feedback tab + dialog, the drifting mesh and the
   pointer spotlight. Page-specific layout lives in each page's own sheet.

   Colour roles (do not mix them up):
     amber  = route, destination, selection, active floor, primary action
     cobalt = the assistant: its halo, voice, chat
     ink    = the header band and the flap tiles, in both themes
   ═══════════════════════════════════════════════════════════════════════ */

/* ── Tokens: light (default) ────────────────────────────────────────────── */
:root {
  color-scheme: light;

  --ink-band:   #0e1626;
  --ink-band-2: #172238;
  --on-band:    #eef3fb;
  --on-band-2:  #a9b6cc;
  --flap-bg:    #182339;
  --flap-bg-2:  #111a2c;
  --flap-ink:   #eef5ff;

  --ground:     #eef2f7;
  --ground-2:   #e3e9f1;
  --panel:      rgba(255, 255, 255, .90);
  --panel-solid:#ffffff;
  --panel-2:    #f5f7fb;
  --line:       rgba(14, 22, 38, .09);
  --line-2:     rgba(14, 22, 38, .16);

  --text:       #0f1828;
  --text-2:     #384659;
  --text-3:     #556377;

  --amber:      #1a6bc6;
  --amber-2:    #2a7fdc;
  --amber-ink:  #155ba8;
  --amber-wash: rgba(26, 107, 198, .12);
  --on-amber:   #ffffff;

  --cobalt:     #3360f0;
  --cobalt-2:   #5b84ff;
  --cobalt-ink: #2449c9;
  --cobalt-wash:rgba(51, 96, 240, .10);
  --on-cobalt:  #ffffff;

  --ok:         #13804f;
  --ok-wash:    rgba(19, 128, 79, .12);
  --stop:       #c42b3d;
  --stop-wash:  rgba(196, 43, 61, .10);
  --warn:       #a8530a;
  --warn-wash:  rgba(194, 98, 10, .12);

  --mesh-a: rgba(51, 96, 240, .22);
  --mesh-b: rgba(20, 184, 166, .16);
  --mesh-c: rgba(120, 184, 239, .22);
  --spot:   rgba(51, 96, 240, .10);
  --spot-edge: rgba(51, 96, 240, .45);

  --shadow-hue: 220 45% 30%;
  --shadow-1: 0 1px 2px hsl(var(--shadow-hue) / .08), 0 2px 6px hsl(var(--shadow-hue) / .06);
  --shadow-2: 0 2px 4px hsl(var(--shadow-hue) / .06), 0 10px 28px hsl(var(--shadow-hue) / .12);
  --shadow-3: 0 6px 14px hsl(var(--shadow-hue) / .10), 0 24px 60px hsl(var(--shadow-hue) / .18);

  --font-display: 'Archivo', 'Segoe UI', system-ui, sans-serif;
  --font-body: 'Geist', 'Segoe UI', system-ui, -apple-system, 'Microsoft YaHei', 'PingFang SC', sans-serif;
  --font-mono: 'Geist Mono', ui-monospace, 'Cascadia Mono', Consolas, monospace;

  --r-panel: 20px;
  --r-ctrl: 12px;
  --r-pill: 999px;

  --ease-out: cubic-bezier(.16, 1, .3, 1);
  --ease-spring: cubic-bezier(.34, 1.4, .5, 1);
  --ease-in-out: cubic-bezier(.65, 0, .35, 1);
  --t-fast: 150ms;
  --t-base: 220ms;
  --t-slow: 300ms;

  --header-h: 64px;
  --z-mesh: 0;
  --z-app: 1;
  --z-header: 30;
  --z-float: 40;
  --z-sheet: 50;
  --z-keyboard: 60;
  --z-dialog: 70;
  --z-spot: 80;
}

/* ── Tokens: dark ───────────────────────────────────────────────────────── */
/* (written twice: once for the explicit choice, once for the OS default) */
:root[data-theme="dark"] {
  color-scheme: dark;
  --ink-band:   #070b14;
  --ink-band-2: #111a2c;
  --flap-bg:    #182339;
  --flap-bg-2:  #0f1726;
  --ground:     #0a0f1a;
  --ground-2:   #0f1625;
  --panel:      rgba(20, 29, 47, .92);
  --panel-solid:#141d2f;
  --panel-2:    #19233a;
  --line:       rgba(170, 195, 255, .10);
  --line-2:     rgba(170, 195, 255, .18);
  --text:       #e9eef8;
  --text-2:     #b7c2d5;
  --text-3:     #93a0b6;
  --amber:      #4a9ee6;
  --amber-2:    #6ab0ec;
  --amber-ink:  #8cc4f5;
  --amber-wash: rgba(74, 158, 230, .16);
  --on-amber:   #04121f;
  --cobalt:     #5b84ff;
  --cobalt-2:   #86a5ff;
  --cobalt-ink: #a9bfff;
  --cobalt-wash:rgba(91, 132, 255, .14);
  --on-cobalt:  #061031;
  --ok:         #3ccf8e;
  --ok-wash:    rgba(60, 207, 142, .12);
  --stop:       #ff6b7c;
  --stop-wash:  rgba(255, 107, 124, .12);
  --warn:       #ffa152;
  --warn-wash:  rgba(255, 161, 82, .12);
  --mesh-a: rgba(64, 104, 255, .30);
  --mesh-b: rgba(20, 184, 166, .14);
  --mesh-c: rgba(20, 184, 166, .08);
  --spot:   rgba(120, 155, 255, .10);
  --spot-edge: rgba(150, 180, 255, .55);
  --shadow-hue: 225 60% 2%;
  --shadow-1: 0 1px 2px hsl(var(--shadow-hue) / .40), 0 2px 6px hsl(var(--shadow-hue) / .30);
  --shadow-2: 0 2px 6px hsl(var(--shadow-hue) / .40), 0 12px 30px hsl(var(--shadow-hue) / .45);
  --shadow-3: 0 8px 18px hsl(var(--shadow-hue) / .45), 0 28px 70px hsl(var(--shadow-hue) / .55);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --ink-band:   #070b14;
    --ink-band-2: #111a2c;
    --flap-bg:    #182339;
    --flap-bg-2:  #0f1726;
    --ground:     #0a0f1a;
    --ground-2:   #0f1625;
    --panel:      rgba(20, 29, 47, .92);
    --panel-solid:#141d2f;
    --panel-2:    #19233a;
    --line:       rgba(170, 195, 255, .10);
    --line-2:     rgba(170, 195, 255, .18);
    --text:       #e9eef8;
    --text-2:     #b7c2d5;
    --text-3:     #93a0b6;
    --amber:      #4a9ee6;
    --amber-2:    #6ab0ec;
    --amber-ink:  #8cc4f5;
    --amber-wash: rgba(74, 158, 230, .16);
    --on-amber:   #04121f;
    --cobalt:     #5b84ff;
    --cobalt-2:   #86a5ff;
    --cobalt-ink: #a9bfff;
    --cobalt-wash:rgba(91, 132, 255, .14);
    --on-cobalt:  #061031;
    --ok:         #3ccf8e;
    --ok-wash:    rgba(60, 207, 142, .12);
    --stop:       #ff6b7c;
    --stop-wash:  rgba(255, 107, 124, .12);
    --warn:       #ffa152;
    --warn-wash:  rgba(255, 161, 82, .12);
    --mesh-a: rgba(64, 104, 255, .30);
    --mesh-b: rgba(20, 184, 166, .14);
    --mesh-c: rgba(20, 184, 166, .08);
    --spot:   rgba(120, 155, 255, .10);
    --spot-edge: rgba(150, 180, 255, .55);
    --shadow-hue: 225 60% 2%;
    --shadow-1: 0 1px 2px hsl(var(--shadow-hue) / .40), 0 2px 6px hsl(var(--shadow-hue) / .30);
    --shadow-2: 0 2px 6px hsl(var(--shadow-hue) / .40), 0 12px 30px hsl(var(--shadow-hue) / .45);
    --shadow-3: 0 8px 18px hsl(var(--shadow-hue) / .45), 0 28px 70px hsl(var(--shadow-hue) / .55);
  }
}

/* ── Base ───────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--ground);
  color: var(--text);
  font: 400 1rem/1.55 var(--font-body);
  font-feature-settings: 'ss01', 'cv11';
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color var(--t-slow) var(--ease-out), color var(--t-slow) var(--ease-out);
}
img, svg, canvas { display: block; max-width: 100%; }
button, input, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; }
a { color: var(--cobalt-ink); text-underline-offset: .2em; text-decoration-thickness: 1.5px; }
h1, h2, h3, h4 { margin: 0; font-family: var(--font-display); font-stretch: 112%; letter-spacing: -.02em; line-height: 1.1; text-wrap: balance; }
p { margin: 0; text-wrap: pretty; }
::selection { background: var(--amber); color: var(--on-amber); }
input, textarea { caret-color: var(--amber); }
* { scrollbar-width: thin; scrollbar-color: var(--line-2) transparent; }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: var(--line-2); border-radius: 10px; border: 3px solid transparent; background-clip: padding-box; }
::-webkit-scrollbar-track { background: transparent; }
.num, time { font-variant-numeric: tabular-nums; }

:focus { outline: none; }
:focus-visible {
  outline: 3px solid var(--amber);
  outline-offset: 2px;
  border-radius: 6px;
}
.sr-only {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: fixed; left: 12px; top: 10px; z-index: var(--z-dialog);
  padding: 10px 16px; border-radius: var(--r-ctrl);
  background: var(--amber); color: var(--on-amber); font-weight: 700; text-decoration: none;
  transform: translateY(-160%); transition: transform var(--t-base) var(--ease-out);
}
.skip-link:focus-visible { transform: none; }

/* ── Ambient layers: drifting mesh, grain, pointer spotlight ───────────── */
.mesh {
  position: fixed; inset: 0; z-index: var(--z-mesh);
  overflow: hidden; pointer-events: none;
}
.mesh i {
  position: absolute; display: block; border-radius: 50%;
  will-change: transform; opacity: 1;
}
.mesh i:nth-child(1) { width: 52vmax; height: 52vmax; left: -14vmax; top: -18vmax; background: radial-gradient(circle closest-side, var(--mesh-a), transparent); animation: meshA 38s var(--ease-in-out) infinite alternate; }
.mesh i:nth-child(2) { width: 44vmax; height: 44vmax; right: -16vmax; top: 10vh; background: radial-gradient(circle closest-side, var(--mesh-b), transparent); animation: meshB 46s var(--ease-in-out) infinite alternate; }
.mesh i:nth-child(3) { width: 40vmax; height: 40vmax; left: 30vw; bottom: -24vmax; background: radial-gradient(circle closest-side, var(--mesh-c), transparent); animation: meshC 42s var(--ease-in-out) infinite alternate; }
@keyframes meshA { to { transform: translate3d(12vw, 10vh, 0) scale(1.12); } }
@keyframes meshB { to { transform: translate3d(-10vw, 14vh, 0) scale(.9); } }
@keyframes meshC { to { transform: translate3d(-14vw, -10vh, 0) scale(1.15); } }
.mesh::after {
  /* (grain removed: a full-screen blended layer cost more than it gave) */
  display: none;
  content: ''; position: absolute; inset: 0; opacity: .05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* The spotlight only exists for a fine pointer (mouse/trackpad); sphere.js
   moves it through --mx/--my and adds .has-spot to <html>. */
.spot {
  position: fixed; left: 0; top: 0; width: 1040px; height: 1040px; z-index: var(--z-spot); pointer-events: none;
  opacity: 0; transition: opacity .4s var(--ease-out); will-change: transform;
  background: radial-gradient(circle closest-side, var(--spot), transparent 60%);
}
.has-spot .spot { opacity: 1; }
/* card edges light up near the pointer: a border-only layer whose gradient is
   positioned in viewport space (background-attachment: fixed) */
.lit { position: relative; }
.lit::after {
  content: ''; position: absolute; inset: 0; border-radius: inherit; padding: 1px; pointer-events: none;
  background: radial-gradient(280px circle at var(--mx, -999px) var(--my, -999px), var(--spot-edge), transparent 70%) fixed;
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  opacity: 0; transition: opacity .4s var(--ease-out);
}
.has-spot .lit::after { opacity: 1; }

/* ── Surfaces ───────────────────────────────────────────────────────────── */
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r-panel);
  box-shadow: var(--shadow-2), inset 0 1px 0 rgba(255, 255, 255, .5);
}
:root[data-theme="dark"] .panel { box-shadow: var(--shadow-2), inset 0 1px 0 rgba(255, 255, 255, .05); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .panel { box-shadow: var(--shadow-2), inset 0 1px 0 rgba(255, 255, 255, .05); } }
@media (prefers-reduced-transparency: reduce) {
  .panel { background: var(--panel-solid); -webkit-backdrop-filter: none; backdrop-filter: none; }
}
.label {
  font: 600 .8125rem/1.2 var(--font-body);
  color: var(--text-3);
  letter-spacing: .01em;
}

/* ── Buttons ────────────────────────────────────────────────────────────── */
.btn {
  --btn-bg: var(--panel-solid); --btn-fg: var(--text); --btn-line: var(--line-2);
  position: relative; overflow: hidden; isolation: isolate;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px; padding: 0 18px; border-radius: var(--r-ctrl);
  border: 1px solid var(--btn-line); background: var(--btn-bg); color: var(--btn-fg);
  font: 600 .9375rem/1 var(--font-body); white-space: nowrap; text-decoration: none;
  box-shadow: var(--shadow-1);
  transition: transform var(--t-fast) var(--ease-out), box-shadow var(--t-base) var(--ease-out),
              background-color var(--t-base) var(--ease-out), border-color var(--t-base) var(--ease-out), color var(--t-base);
  -webkit-tap-highlight-color: transparent; user-select: none;
}
.btn svg { width: 18px; height: 18px; flex: none; }

.btn:active { transform: translateY(0) scale(.97); box-shadow: var(--shadow-1); transition-duration: 80ms; }
.btn[disabled], .btn[aria-disabled="true"] { opacity: .5; pointer-events: none; }
.btn-amber { --btn-bg: var(--amber); --btn-fg: var(--on-amber); --btn-line: transparent; }
.btn-amber:hover { --btn-bg: var(--amber-2); }
.btn-cobalt { --btn-bg: var(--cobalt); --btn-fg: var(--on-cobalt); --btn-line: transparent; }
.btn-cobalt:hover { --btn-bg: var(--cobalt-2); }
.btn-quiet { --btn-bg: transparent; --btn-line: var(--line-2); box-shadow: none; }
.btn-quiet:hover { --btn-bg: var(--panel-2); box-shadow: none; }
.btn-icon { padding: 0; width: 44px; }
/* buttons on the ink band */
.on-band .btn-quiet { --btn-fg: var(--on-band); --btn-line: rgba(255, 255, 255, .16); }
.on-band .btn-quiet:hover { --btn-bg: rgba(255, 255, 255, .08); }

/* click ripple (sphere.js adds the span) */
.ripple {
  position: absolute; z-index: -1; border-radius: 50%; pointer-events: none;
  width: 12px; height: 12px; margin: -6px 0 0 -6px;
  background: currentColor; opacity: .22;
  animation: ripple .55s var(--ease-out) forwards;
}
@keyframes ripple { to { transform: scale(var(--rs, 30)); opacity: 0; } }

/* ── Chips ──────────────────────────────────────────────────────────────── */
.chip {
  position: relative; overflow: hidden; isolation: isolate;
  display: inline-flex; align-items: center; gap: 6px;
  min-height: 44px; padding: 0 16px; border-radius: var(--r-pill);
  border: 1px solid var(--line-2); background: var(--panel-solid); color: var(--text);
  font: 600 .875rem/1.2 var(--font-body); text-align: left;
  transition: transform var(--t-fast) var(--ease-out), background-color var(--t-base), border-color var(--t-base), color var(--t-base), box-shadow var(--t-base);
  -webkit-tap-highlight-color: transparent;
}
.chip:hover { border-color: var(--amber); }
.chip:active { transform: scale(.96); transition-duration: 80ms; }
.chip[aria-pressed="true"] { background: var(--amber); color: var(--on-amber); border-color: transparent; }

/* ── Segmented switch (language) ────────────────────────────────────────── */
.seg {
  --n: 3; --i: 0;
  position: relative; display: inline-grid; grid-auto-flow: column; grid-auto-columns: 1fr;
  padding: 4px; border-radius: var(--r-pill);
  background: var(--panel-2); border: 1px solid var(--line);
}
.seg::before {
  content: ''; position: absolute; top: 4px; bottom: 4px; left: 4px;
  width: calc((100% - 8px) / var(--n)); border-radius: var(--r-pill);
  background: var(--amber); box-shadow: 0 4px 12px rgba(26, 107, 198, .35);
  transform: translateX(calc(var(--i) * 100%));
  transition: transform var(--t-slow) var(--ease-spring);
}
.seg button {
  position: relative; z-index: 1; min-height: 40px; min-width: 52px; padding: 0 14px;
  border: 0; border-radius: var(--r-pill); background: transparent; color: var(--text-2);
  font: 700 .875rem/1 var(--font-body); white-space: nowrap;
  transition: color var(--t-base), transform var(--t-fast) var(--ease-out);
  -webkit-tap-highlight-color: transparent;
}
.seg button:active { transform: scale(.94); }
.seg button[aria-pressed="true"] { color: var(--on-amber); }
.on-band .seg { background: rgba(255, 255, 255, .06); border-color: rgba(255, 255, 255, .12); }
.on-band .seg button { color: var(--on-band-2); }
.on-band .seg button[aria-pressed="true"] { color: var(--on-amber); }

/* ── Theme toggle: the sun's disc slides a shadow across into a moon ────── */
.theme-toggle {
  position: relative; display: inline-grid; place-items: center;
  width: 44px; height: 44px; border-radius: var(--r-pill);
  border: 1px solid rgba(255, 255, 255, .16); background: transparent; color: var(--on-band);
  transition: background-color var(--t-base), transform var(--t-fast) var(--ease-out);
}
.theme-toggle:hover { background: rgba(255, 255, 255, .08); }
.theme-toggle:active { transform: scale(.92); }
.theme-toggle svg { width: 22px; height: 22px; overflow: visible; }
.theme-toggle .tt-disc { transition: r var(--t-slow) var(--ease-out); }
.theme-toggle .tt-shade { transition: transform var(--t-slow) var(--ease-out); transform: translate(12px, -12px); }
.theme-toggle .tt-rays { transform-origin: 12px 12px; transition: transform var(--t-slow) var(--ease-spring), opacity var(--t-base); }
.is-dark .theme-toggle .tt-disc { r: 8px; }
.is-dark .theme-toggle .tt-shade { transform: translate(5px, -4px); }
.is-dark .theme-toggle .tt-rays { transform: rotate(-60deg) scale(.4); opacity: 0; }

/* ── Header: the ink band ───────────────────────────────────────────────── */
.deck {
  position: relative; z-index: var(--z-header);
  display: flex; align-items: center; gap: 16px;
  height: var(--header-h); padding: 0 20px;
  background: linear-gradient(180deg, var(--ink-band-2), var(--ink-band));
  color: var(--on-band);
  box-shadow: 0 1px 0 rgba(255, 255, 255, .04), 0 10px 30px rgba(5, 10, 20, .25);
}
.deck::after {
  /* a thin amber rule, like the edge of a station sign */
  content: ''; position: absolute; left: 0; right: 0; bottom: 0; height: 2px;
  background: linear-gradient(90deg, var(--amber) 0 64px, rgba(26, 107, 198, .25) 64px 30%, transparent 70%);
}
.brand {
  display: inline-flex; align-items: center; gap: 10px; flex: none;
  color: var(--on-band); text-decoration: none;
}
.brand img { width: auto; height: 34px; }
.brand-word {
  font: 800 1.25rem/1 var(--font-display); font-stretch: 118%; letter-spacing: -.03em;
}
.brand-word b { font-weight: 800; color: var(--amber); }
.deck-mid { display: flex; align-items: center; gap: 14px; margin-left: 8px; min-width: 0; }
.deck-meta { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.deck-meta .deck-date { font: 500 .8125rem/1.2 var(--font-body); color: var(--on-band-2); white-space: nowrap; }
.deck-meta .deck-wx { font: 600 .8125rem/1.2 var(--font-body); color: var(--on-band); white-space: nowrap; display: inline-flex; gap: 6px; align-items: center; }
.deck-meta .deck-wx[hidden] { display: none; }
.deck-wx svg { width: 15px; height: 15px; color: var(--amber); }
.deck-status { display: inline-flex; align-items: center; gap: 10px; }
.deck-status .pulse {
  width: 9px; height: 9px; border-radius: 50%; background: #3ccf8e; flex: none;
  box-shadow: 0 0 0 0 rgba(60, 207, 142, .6); animation: livePulse 2.4s var(--ease-out) infinite;
}
.deck-status[data-mode="busy"] .pulse { background: var(--cobalt-2); animation-duration: 1.2s; box-shadow: 0 0 0 0 rgba(91, 132, 255, .6); }
.deck-status[data-mode="rec"] .pulse { background: #ff6b7c; animation-duration: .9s; box-shadow: 0 0 0 0 rgba(255, 107, 124, .6); }
@keyframes livePulse { 70% { box-shadow: 0 0 0 9px rgba(60, 207, 142, 0); } 100% { box-shadow: 0 0 0 0 rgba(60, 207, 142, 0); } }
.deck-actions { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.deck .btn { min-height: 42px; }
.deck .fb-cta { box-shadow: 0 0 0 0 rgba(26, 107, 198, .5); }
.deck .fb-cta:hover { box-shadow: 0 6px 22px rgba(26, 107, 198, .4); }

/* ── Split-flap tiles ───────────────────────────────────────────────────── */
.flap {
  --tile-w: 22px; --tile-h: 32px; --tile-fs: 1.25rem;
  display: inline-flex; gap: 3px; perspective: 400px;
  font: 600 var(--tile-fs)/1 var(--font-mono); color: var(--flap-ink);
  white-space: nowrap;
}
.flap-cell {
  position: relative; display: inline-grid; place-items: center;
  width: var(--tile-w); height: var(--tile-h); border-radius: 5px;
  background: linear-gradient(180deg, var(--flap-bg) 0 50%, var(--flap-bg-2) 50% 100%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .07), inset 0 -1px 0 rgba(0, 0, 0, .4), 0 1px 2px rgba(0, 0, 0, .35);
  overflow: hidden; transform-style: preserve-3d;
}
.flap-cell::after {
  /* the hinge line across the middle of every tile */
  content: ''; position: absolute; left: 0; right: 0; top: calc(50% - .5px); height: 1px;
  background: rgba(0, 0, 0, .55); box-shadow: 0 1px 0 rgba(255, 255, 255, .04);
}
.flap-cell.space { width: calc(var(--tile-w) * .45); background: none; box-shadow: none; }
.flap-cell.space::after { display: none; }
#status-flap .flap-cell.space, [data-clock] .flap-cell.space { width: var(--tile-w); background: linear-gradient(180deg, var(--flap-bg) 0 50%, var(--flap-bg-2) 50%); opacity: .45; }
.flap-cell > span { display: block; backface-visibility: hidden; }

.flap-sm { --tile-w: 16px; --tile-h: 24px; --tile-fs: .9375rem; gap: 2px; }
.flap-lg { --tile-w: 30px; --tile-h: 44px; --tile-fs: 1.75rem; }

/* ── Kinetic headline: letters rise through a mask ──────────────────────── */
.kinetic .kw { display: inline-block; overflow: hidden; vertical-align: top; padding-bottom: .08em; margin-bottom: -.08em; }
.kinetic .kc { display: inline-block; transform: translateY(105%); opacity: 0; animation: kRise .42s var(--ease-out) forwards; animation-delay: min(calc(var(--k, 0) * 14ms), 280ms); }
@keyframes kRise { to { transform: none; opacity: 1; } }

/* ── Scroll / entrance reveals ──────────────────────────────────────────── */
[data-reveal] { opacity: 0; transform: translateY(18px); transition: opacity .6s var(--ease-out), transform .6s var(--ease-out); transition-delay: calc(var(--d, 0) * 60ms); }
[data-reveal].is-in { opacity: 1; transform: none; }
.no-js [data-reveal] { opacity: 1; transform: none; }

/* ── Footer ticker ──────────────────────────────────────────────────────── */
.ticker {
  position: relative; z-index: var(--z-app);
  display: flex; align-items: stretch; height: 40px; overflow: hidden;
  background: var(--ink-band); color: var(--on-band-2);
  border-top: 2px solid var(--amber);
  font: 500 .8125rem/1 var(--font-body);
}
.ticker-tag {
  flex: none; display: inline-flex; align-items: center; gap: 8px; padding: 0 16px;
  background: var(--amber); color: var(--on-amber); font: 800 .8125rem/1 var(--font-display); font-stretch: 115%;
  white-space: nowrap;
}
.ticker-view { position: relative; flex: 1; overflow: hidden; -webkit-mask: linear-gradient(90deg, transparent, #000 40px, #000 calc(100% - 40px), transparent); mask: linear-gradient(90deg, transparent, #000 40px, #000 calc(100% - 40px), transparent); }
.ticker-track { display: inline-flex; height: 100%; align-items: center; white-space: nowrap; animation: tick var(--tick-dur, 60s) linear infinite; will-change: transform; }
.ticker:hover .ticker-track, .ticker:focus-within .ticker-track { animation-play-state: paused; }
.ticker-item { display: inline-flex; align-items: center; gap: 8px; padding: 0 22px; }
.ticker-item b { color: var(--on-band); font-weight: 600; }
.ticker-item + .ticker-item::before { content: ''; width: 5px; height: 5px; margin-right: 22px; margin-left: -22px; border-radius: 1px; background: var(--amber); transform: rotate(45deg); opacity: .8; }
@keyframes tick { to { transform: translateX(-50%); } }
.ticker-links { flex: none; display: flex; align-items: center; gap: 4px; padding: 0 10px; }
.ticker-links a { color: var(--on-band); font-weight: 600; text-decoration: none; padding: 8px 10px; border-radius: 8px; white-space: nowrap; }
.ticker-links a:hover { background: rgba(255, 255, 255, .08); }

/* ── Feedback: floating tab + dialog ────────────────────────────────────── */
.fb-tab {
  position: fixed; right: 0; top: 50%; z-index: var(--z-float);
  display: inline-flex; align-items: center; gap: 8px;
  min-height: 44px; padding: 12px 14px; border: 0; border-radius: 12px 0 0 12px;
  background: var(--amber); color: var(--on-amber);
  font: 800 .875rem/1 var(--font-display); font-stretch: 112%;
  writing-mode: vertical-rl; transform: translate(4px, -50%) rotate(180deg);
  box-shadow: -6px 0 24px rgba(26, 107, 198, .3);
  transition: transform var(--t-base) var(--ease-out), box-shadow var(--t-base);
}
.fb-tab svg { width: 18px; height: 18px; transform: rotate(90deg); }
.fb-tab:hover { transform: translate(0, -50%) rotate(180deg); box-shadow: -8px 0 30px rgba(26, 107, 198, .45); }

.fb-dialog {
  width: min(460px, calc(100vw - 32px)); padding: 0; border: 1px solid var(--line);
  border-radius: 22px; background: var(--panel-solid); color: var(--text);
  box-shadow: var(--shadow-3);
}
.fb-dialog::backdrop { background: rgba(6, 10, 20, .55); -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px); }
.fb-dialog[open] { animation: dlgIn var(--t-slow) var(--ease-out); }
@keyframes dlgIn { from { opacity: 0; transform: translateY(16px) scale(.97); } }
.fb-dialog form { display: grid; gap: 18px; padding: 24px; }
.fb-dialog h2 { font-size: 1.5rem; }
.fb-dialog .fb-sub { color: var(--text-2); font-size: .9375rem; margin-top: 6px; }
[hidden] { display: none !important; }   /* a class with display:grid must not show a hidden element */
.fb-stars { display: flex; gap: 6px; border: 0; margin: 0; padding: 0; }
.fb-stars legend { margin-bottom: 8px; padding: 0; }
.fb-stars input { position: absolute; opacity: 0; pointer-events: none; }
.fb-stars label {
  display: grid; place-items: center; width: 48px; height: 48px; border-radius: 12px; cursor: pointer;
  color: var(--line-2); background: var(--panel-2); border: 1px solid var(--line);
  transition: transform var(--t-fast) var(--ease-spring), color var(--t-base), background-color var(--t-base);
}
.fb-stars label svg { width: 26px; height: 26px; }

/* Stars are the one place yellow is used: a chosen star turns gold and the
   row hops one after another (sphere.js adds .hop on change). */
.fb-stars label.on, .fb-dialog .fb-stars label.on { color: #f5b301; background: rgba(245, 179, 1, .14); border-color: rgba(245, 179, 1, .55); }
.fb-stars label.hop { animation: starHop .5s cubic-bezier(.3, 1.6, .5, 1) both; animation-delay: calc(var(--k, 0) * 60ms); }
.fb-stars label.hop svg { filter: drop-shadow(0 0 6px rgba(245, 179, 1, .6)); }
@keyframes starHop {
  0%   { transform: none; }
  35%  { transform: translateY(-12px) scale(1.18) rotate(-8deg); }
  65%  { transform: translateY(2px) scale(.95, 1.05); }
  100% { transform: none; }
}
@media (prefers-reduced-motion: reduce) { .fb-stars label.hop { animation: none; } }
.fb-stars input:focus-visible + label { outline: 3px solid var(--amber); outline-offset: 2px; }
.fb-field { display: grid; gap: 8px; }
.fb-field textarea {
  width: 100%; min-height: 104px; resize: vertical; padding: 12px 14px; border-radius: var(--r-ctrl);
  border: 1px solid var(--line-2); background: var(--panel-2); color: var(--text); font-size: 1rem; line-height: 1.5;
}
.fb-field textarea::placeholder { color: var(--text-3); }
.fb-field textarea:focus-visible { outline: 3px solid var(--amber); outline-offset: 1px; border-color: transparent; }
.fb-actions { display: flex; gap: 10px; justify-content: flex-end; flex-wrap: wrap; }
.fb-msg { min-height: 1.4em; font-size: .9375rem; font-weight: 600; }
.fb-msg.err { color: var(--stop); }
.fb-msg.ok { color: var(--ok); }
.fb-hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }

/* Hover movement only where a real pointer can hover: on the touch kiosk a
   tap would otherwise leave buttons stuck in their lifted state. */
@media (hover: hover) and (pointer: fine) {
  .btn:hover { transform: translateY(-1px); box-shadow: var(--shadow-2); }
  .btn-amber:hover { box-shadow: 0 6px 20px rgba(26, 107, 198, .35); }
  .chip:hover { transform: translateY(-1px); box-shadow: 0 6px 16px rgba(26, 107, 198, .18); }
  .fb-stars label:hover { transform: translateY(-2px) scale(1.06); }
}

/* ── Language crossfade ─────────────────────────────────────────────────── */
.swap-out { opacity: 0; filter: blur(3px); transform: translateY(-3px); }
.swap { transition: opacity var(--t-base) var(--ease-out), filter var(--t-base) var(--ease-out), transform var(--t-base) var(--ease-out); }

/* ── Header + footer: quiet glass bars in the page's own colours ─────── */
.deck {
  --on-band: var(--text); --on-band-2: var(--text-2);
  background: color-mix(in srgb, var(--panel-solid) 94%, transparent);
  color: var(--text);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 1px 0 rgba(255, 255, 255, .04), 0 8px 24px hsl(var(--shadow-hue) / .06);
}
.deck::after { display: none; }
.brand-word b { color: var(--amber); }
.deck-time { font: 700 1.375rem/1 var(--font-display); font-stretch: 108%; letter-spacing: -.01em; font-variant-numeric: tabular-nums; color: var(--text); }
.deck-wx svg { color: var(--amber); }
.on-band .btn-quiet { --btn-fg: var(--text); --btn-line: var(--line-2); }
.on-band .btn-quiet:hover { --btn-bg: var(--panel-2); }
.theme-toggle { border-color: var(--line-2); color: var(--text); }
.theme-toggle:hover { background: var(--panel-2); }
.on-band .seg { background: var(--panel-2); border-color: var(--line); }
.on-band .seg button { color: var(--text-2); }
.ticker {
  background: color-mix(in srgb, var(--panel-solid) 92%, transparent);
  color: var(--text-3); border-top: 1px solid var(--line);
}
.ticker-item b { color: var(--text-2); }
.ticker-item + .ticker-item::before { background: var(--line-2); }
.ticker-links a { color: var(--text-2); }
.ticker-links a:hover { background: var(--panel-2); color: var(--text); }
.ticker-tag { background: var(--amber); color: var(--on-amber); }

/* ── Mobile header compaction ───────────────────────────────────────────── */
@media (max-width: 899px) {
  :root { --header-h: 58px; }
  .deck { gap: 10px; padding: 0 12px; }
  .brand img { width: auto; height: 30px; }
  .brand-word { font-size: 1.0625rem; }
  .deck .hide-sm { display: none !important; }
  .fb-tab {
    top: auto; bottom: 16px; left: 12px; right: auto;
    writing-mode: horizontal-tb; transform: none; border-radius: var(--r-pill); padding: 0 16px;
    box-shadow: 0 8px 24px rgba(26, 107, 198, .35);
  }
  .fb-tab svg { transform: none; }
  .fb-tab:hover { transform: translateY(-1px); }
  .ticker-links { display: none; }
  .deck .seg button { min-width: 38px; min-height: 36px; padding: 0 8px; font-size: .8125rem; }
  .deck .theme-toggle, .deck .fb-cta { width: 44px; min-width: 44px; padding: 0; }
  .deck-actions { gap: 6px; }
}
@media (max-width: 599px) {
  .deck [data-clock] { display: none; }
  .deck-mid { display: none; }
}
@media (max-width: 400px) {
  .brand-word { display: none; }
}
@media (min-width: 900px) { .deck .show-sm { display: none !important; } }

/* ── Reduced motion: keep fades, drop drift, flaps, spotlight, marquee ──── */
@media (prefers-reduced-motion: reduce) {
  .mesh i, .ticker-track, .deck-status .pulse { animation: none !important; }
  .spot, .lit::after { display: none; }
  .kinetic .kc { animation: kFade .3s ease forwards; transform: none; animation-delay: 0s; }
  [data-reveal] { transform: none; transition: opacity .3s ease; }
  .seg::before { transition-duration: 1ms; }
  .ripple { display: none; }
  .ticker-view { overflow-x: auto; }
}
@keyframes kFade { from { opacity: 0; } to { opacity: 1; } }