/* ==========================================================================
   Waarning v4 — GLAS · ALARM COLORED · GRANULATED · PULSATING
   Loaded last, after waarning.css / waarning-v2.css / waarning-v3.css.

   Contract (self-imposed, so the file stays auditable):
     · Legacy tokens are reused, never re-invented (--signal, --accent,
       --surface-*, --line*, --white-glint, --ease-*, --mono, --font, ...).
     · Every selector is either (a) a brand-new opt-in class/element state,
       or (b) a deliberate override of a legacy rule, marked [override].
     · Every animation/transition declaration lives inside
       @media (prefers-reduced-motion: no-preference); under :reduce they are
       explicitly switched off, and nothing readable depends on motion.
     · Pure CSS. No JS, no @import, no nesting, no preprocessor syntax.
   ========================================================================== */

/* ==========================================================================
   1. GLAS — fluid scale, grain source, pointer plumbing
   ========================================================================== */

:root {
  /* Fluid, one scale, no per-breakpoint overrides needed. */
  --wa-bp-pad: clamp(12px, 1.6vw, 30px);
  --wa-gap: clamp(10px, 1.15vw, 16px);
  --wa-radius-1: clamp(14px, 1.5vw, 20px);
  --wa-radius-2: clamp(18px, 2.1vw, 28px);
  --wa-radius-3: clamp(22px, 2.9vw, 38px);
  --wa-blur-1: clamp(10px, 1.5vw, 18px);
  --wa-blur-2: clamp(16px, 2.4vw, 30px);
  --wa-blur-3: clamp(22px, 3.4vw, 46px);
  --wa-tap: 44px;

  /* Pointer sheen — set at runtime by src/ui/atmosphere.ts as lengths
     (--pointer-x/y) plus a parallax delta (--pointer-shift-x/y). Fallbacks
     keep the sheen painted when those are unset. */
  --wa-sheen-r: clamp(140px, 24vmax, 460px);
  --wa-sheen: radial-gradient(var(--wa-sheen-r) circle at var(--pointer-x, 50%) var(--pointer-y, 0%), color-mix(in srgb, var(--white-glint) 82%, transparent), color-mix(in srgb, var(--signal) 12%, transparent) 34%, transparent 66%);
  --wa-sheen-x: var(--pointer-shift-x, 0px);
  --wa-sheen-y: var(--pointer-shift-y, 0px);

  /* GRANULATED: 160px inline feTurbulence tile, plus a per-tier strength. */
  --grain-url: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160' viewBox='0 0 160 160'%3E%3Cfilter id='waGrain' x='0' y='0' width='100%25' height='100%25'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.86' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23waGrain)' opacity='0.62'/%3E%3C/svg%3E");
  --grain-opacity: 0.05;
  --grain-size: 160px 160px;

  /* Dither: kills banding on the big gradient fills (OLED / 8-bit panels). */
  --dither-layer: none;
  --dither-size: 3px 3px;
  --sheen-opacity: 0.3;
}

/* ==========================================================================
   2. ALARM COLORED — severity ramp on top of the legacy palette
   --sev-0 info … --sev-4 extreme. Each level carries a hue, a glow colour,
   a gradient pair and a contrast-safe ink (>= 6.2:1 against its own base).
   The "active" aliases --sev / --sev-hue / --sev-glow / --sev-a / --sev-b /
   --sev-ink are what the tiers, dots and rings actually consume.
   ========================================================================== */

:root {
  --sev-0: #7cc4ff; --sev-0-hue: 205; --sev-0-glow: rgba(124, 196, 255, 0.52);
  --sev-0-a: #b6ddff; --sev-0-b: #2f8fd8; --sev-0-ink: #04121f; --sev-0-strength: 0.18;
  --sev-1: #f7d04a; --sev-1-hue: 44; --sev-1-glow: rgba(247, 208, 74, 0.52);
  --sev-1-a: #ffe487; --sev-1-b: #d9a01a; --sev-1-ink: #1a1300; --sev-1-strength: 0.34;
  --sev-2: #ff9a3d; --sev-2-hue: 28; --sev-2-glow: rgba(255, 154, 61, 0.55);
  --sev-2-a: #ffbd74; --sev-2-b: #d96a00; --sev-2-ink: #221000; --sev-2-strength: 0.52;
  --sev-3: #ff5b74; --sev-3-hue: 352; --sev-3-glow: rgba(255, 91, 116, 0.55);
  --sev-3-a: #ff93a5; --sev-3-b: #cf2240; --sev-3-ink: #2b0409; --sev-3-strength: 0.76;
  --sev-4: #cf7bff; --sev-4-hue: 285; --sev-4-glow: rgba(207, 123, 255, 0.6);
  --sev-4-a: #e6b6ff; --sev-4-b: #8b2fd6; --sev-4-ink: #1c0430; --sev-4-strength: 1;

  --sev: var(--sev-0);
  --sev-hue: var(--sev-0-hue);
  --sev-glow: var(--sev-0-glow);
  --sev-a: var(--sev-0-a);
  --sev-b: var(--sev-0-b);
  --sev-ink: var(--sev-0-ink);
  --sev-strength: var(--sev-0-strength);
}

/* Active severity. [data-threat] maps the live shell threat; [data-sev] and
   .sev-N let a single widget card carry its own severity. The .sev-N rules
   only set custom properties, so the legacy `.chip.sev-3` colours in
   waarning.css and the widget `*.sev-4 { border-left-color }` rules keep
   working untouched. */
html[data-threat='clear'], [data-sev='0'], .sev-0 {
  --sev: var(--sev-0); --sev-hue: var(--sev-0-hue); --sev-glow: var(--sev-0-glow);
  --sev-a: var(--sev-0-a); --sev-b: var(--sev-0-b); --sev-ink: var(--sev-0-ink);
  --sev-strength: var(--sev-0-strength);
}
html[data-threat='notice'], [data-sev='1'], .sev-1 {
  --sev: var(--sev-1); --sev-hue: var(--sev-1-hue); --sev-glow: var(--sev-1-glow);
  --sev-a: var(--sev-1-a); --sev-b: var(--sev-1-b); --sev-ink: var(--sev-1-ink);
  --sev-strength: var(--sev-1-strength);
}
html[data-threat='advisory'], [data-sev='2'], .sev-2 {
  --sev: var(--sev-2); --sev-hue: var(--sev-2-hue); --sev-glow: var(--sev-2-glow);
  --sev-a: var(--sev-2-a); --sev-b: var(--sev-2-b); --sev-ink: var(--sev-2-ink);
  --sev-strength: var(--sev-2-strength);
}
html[data-threat='warning'], [data-sev='3'], .sev-3 {
  --sev: var(--sev-3); --sev-hue: var(--sev-3-hue); --sev-glow: var(--sev-3-glow);
  --sev-a: var(--sev-3-a); --sev-b: var(--sev-3-b); --sev-ink: var(--sev-3-ink);
  --sev-strength: var(--sev-3-strength);
}
html[data-threat='critical'], [data-sev='4'], .sev-4 {
  --sev: var(--sev-4); --sev-hue: var(--sev-4-hue); --sev-glow: var(--sev-4-glow);
  --sev-a: var(--sev-4-a); --sev-b: var(--sev-4-b); --sev-ink: var(--sev-4-ink);
  --sev-strength: var(--sev-4-strength);
}

/* Opt-in alarm surfaces built from the active severity. */
.wa-sev-surface {
  border-color: color-mix(in srgb, var(--sev) 42%, var(--line-strong));
  box-shadow: inset 0 1px 0 var(--white-glint), 0 12px 38px -18px var(--sev-glow);
}
.wa-sev-rail { border-left: 3px solid var(--sev); }
.wa-sev-text { color: color-mix(in srgb, var(--sev) 78%, var(--text)); }
.wa-sev-fill {
  color: var(--sev-ink);
  background-image: linear-gradient(145deg, var(--sev-a), var(--sev-b));
  border-color: color-mix(in srgb, var(--sev) 60%, var(--white-glint));
}
.wa-sev-dot {
  position: relative;
  display: inline-block;
  inline-size: 9px;
  block-size: 9px;
  border-radius: 50%;
  background: var(--sev);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--sev) 16%, transparent), 0 0 14px var(--sev-glow);
}

/* ==========================================================================
   3. GLAS — three physical depth tiers
   Tier = gradient fill + backdrop blur/saturate/brighten + 1px gradient
   border (border-box / padding-box double background) + inset top glint +
   inset bottom shade + outer shadow tinted with the live --signal.
   [override] .glass-N::before deliberately replaces the flat radial that
   legacy `.glass::before` paints, so `class="glass glass-1"` stays coherent.
   ========================================================================== */

.glass-1, .glass-2, .glass-3 {
  position: relative;
  isolation: isolate;
  min-width: 0;
  max-width: 100%;
  container-type: inline-size;
  border: 1px solid transparent;
  color: var(--text);
  background-image: var(--dither-layer, none), linear-gradient(150deg, var(--wa-fill-a), var(--wa-fill-b)), linear-gradient(145deg, var(--wa-edge-a), var(--wa-edge-b));
  background-origin: padding-box, padding-box, border-box;
  background-clip: padding-box, padding-box, border-box;
  background-repeat: repeat, no-repeat, no-repeat;
  background-size: var(--dither-size, 3px 3px), auto, auto;
  box-shadow:
    inset 0 1px 0 var(--white-glint),
    inset 0 -14px 26px -20px color-mix(in srgb, var(--black-shadow) 85%, transparent),
    0 10px 30px -12px color-mix(in srgb, var(--signal) 14%, var(--black-shadow));
  backdrop-filter: blur(var(--wa-blur)) saturate(var(--wa-sat)) brightness(var(--wa-bright));
  -webkit-backdrop-filter: blur(var(--wa-blur)) saturate(var(--wa-sat)) brightness(var(--wa-bright));
}

/* Tier 1 — cards. */
.glass-1 {
  --wa-blur: var(--wa-blur-1);
  --wa-sat: 145%;
  --wa-bright: 1.03;
  --wa-fill-a: color-mix(in srgb, var(--surface-high) 72%, transparent);
  --wa-fill-b: color-mix(in srgb, var(--surface-low) 84%, transparent);
  --wa-edge-a: color-mix(in srgb, var(--white-glint) 92%, transparent);
  --wa-edge-b: color-mix(in srgb, var(--line-strong) 82%, color-mix(in srgb, var(--signal) 26%, transparent));
  --grain-opacity: 0.05;
  --sheen-opacity: 0.28;
  border-radius: var(--wa-radius-1);
  padding: var(--wa-pad-1, clamp(14px, 1.6vw, 24px));
}

/* Tier 2 — panels and modals. */
.glass-2 {
  --wa-blur: var(--wa-blur-2);
  --wa-sat: 165%;
  --wa-bright: 1.05;
  --wa-fill-a: color-mix(in srgb, var(--surface-high) 82%, transparent);
  --wa-fill-b: color-mix(in srgb, var(--surface-low) 76%, transparent);
  --wa-edge-a: color-mix(in srgb, var(--white-glint) 96%, transparent);
  --wa-edge-b: color-mix(in srgb, var(--line-strong) 74%, color-mix(in srgb, var(--signal) 40%, transparent));
  --grain-opacity: 0.065;
  --sheen-opacity: 0.34;
  border-radius: var(--wa-radius-2);
  padding: var(--wa-pad-2, clamp(18px, 2.1vw, 32px));
  box-shadow:
    inset 0 1px 0 var(--white-glint),
    inset 0 -18px 34px -24px color-mix(in srgb, var(--black-shadow) 92%, transparent),
    0 22px 60px -26px color-mix(in srgb, var(--signal) 20%, var(--black-shadow)),
    inset 0 2px 0 0 color-mix(in srgb, var(--white-glint) 55%, transparent);
}

/* Tier 3 — hero / command surfaces. Heaviest glass, dither on by default. */
.glass-3 {
  --wa-blur: var(--wa-blur-3);
  --wa-sat: 180%;
  --wa-bright: 1.07;
  --wa-fill-a: color-mix(in srgb, var(--surface-high) 70%, transparent);
  --wa-fill-b: color-mix(in srgb, var(--surface-low) 66%, transparent);
  --wa-edge-a: color-mix(in srgb, var(--white-glint) 100%, transparent);
  --wa-edge-b: color-mix(in srgb, var(--line-strong) 60%, color-mix(in srgb, var(--signal) 58%, transparent));
  --grain-opacity: 0.08;
  --sheen-opacity: 0.42;
  --dither-layer: repeating-linear-gradient(0deg, color-mix(in srgb, var(--text) 4%, transparent) 0 1px, transparent 1px 3px);
  border-radius: var(--wa-radius-3);
  padding: var(--wa-pad-3, clamp(20px, 2.6vw, 42px));
  box-shadow:
    inset 0 1px 0 var(--white-glint),
    inset 0 -26px 48px -32px color-mix(in srgb, var(--black-shadow) 90%, transparent),
    0 34px 96px -34px color-mix(in srgb, var(--signal) 30%, var(--black-shadow));
}

/* Specular sheen — tracks the pointer, parallaxes on --pointer-shift-*. */
.glass-1::before, .glass-2::before, .glass-3::before, .wa-sheen::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  background-image: var(--wa-sheen);
  opacity: var(--sheen-opacity, 0.3);
  transform: translate3d(calc(var(--wa-sheen-x) * 0.28), calc(var(--wa-sheen-y) * 0.28), 0);
}

/* Focused glass leans very slightly toward the pointer. */
.glass-2:hover, .glass-3:hover { --sheen-opacity: 0.5; }

/* ==========================================================================
   4. GRANULATED — film grain, dither, and the opt-in switches
   ========================================================================== */

.glass-1::after, .glass-2::after, .glass-3::after, .wa-grain::after {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  background-image: var(--grain-url);
  background-repeat: repeat;
  background-size: var(--grain-size);
  opacity: var(--grain-opacity, 0.05);
  mix-blend-mode: soft-light;
}

/* Opt-in dither for any large gradient surface (e.g. a legacy .cta-band). */
.wa-dither {
  --dither-layer: repeating-linear-gradient(0deg, color-mix(in srgb, var(--text) 4%, transparent) 0 1px, transparent 1px 3px);
}
.wa-grain { position: relative; isolation: isolate; }
.wa-grain-strong { --grain-opacity: 0.11; }
.wa-grain-off { --grain-opacity: 0; }

/* ==========================================================================
   5. PULSATING — ambient breath, severity heartbeat, alarm double-beat
   All of it inside @media (prefers-reduced-motion: no-preference).
   ========================================================================== */

@keyframes wa-breathe {
  from { transform: scale(1); opacity: 0.97; }
  to { transform: scale(1.012); opacity: 1; }
}
@keyframes wa-pulse {
  0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 var(--sev-glow); }
  50% { transform: scale(calc(1 + 0.1 * var(--sev-strength, 0))); box-shadow: 0 0 0 calc(4px + 10px * var(--sev-strength, 0)) transparent; }
}
@keyframes wa-alarm {
  0%, 100% { opacity: 1; transform: scale(1); }
  12% { opacity: 0.55; transform: scale(0.94); }
  24% { opacity: 1; transform: scale(1.06); }
  38% { opacity: 0.68; transform: scale(0.97); }
  52% { opacity: 1; transform: scale(1); }
}
@keyframes wa-alarm-extreme {
  0%, 100% { opacity: 1; transform: scale(1) translate3d(0, 0, 0); }
  10% { opacity: 0.4; transform: scale(0.9) translate3d(-1px, 0, 0); }
  22% { opacity: 1; transform: scale(1.12) translate3d(1px, 0, 0); }
  34% { opacity: 0.5; transform: scale(0.92) translate3d(-1px, 0, 0); }
  46% { opacity: 1; transform: scale(1.08) translate3d(1px, 0, 0); }
  62% { opacity: 0.85; transform: scale(0.99) translate3d(0, 0, 0); }
}
@keyframes wa-ring-sweep {
  from { transform: rotate(0turn); }
  to { transform: rotate(1turn); }
}
@keyframes wa-scan {
  from { transform: translate3d(0, -140%, 0); }
  to { transform: translate3d(0, 340%, 0); }
}

@media (prefers-reduced-motion: no-preference) {
  /* wa-breathe — very slow ambient life on hero glass. */
  .glass-3, .wa-breathe {
    animation: wa-breathe calc(11s - var(--sev-strength, 0) * 3s) var(--ease-out) infinite alternate;
    will-change: transform;
  }

  /* wa-pulse — a severity heartbeat whose tempo/size follow --sev-strength. */
  .wa-pulse, .wa-sev-dot.wa-pulse, .live-dot.wa-pulse {
    animation: wa-pulse calc(2.6s - var(--sev-strength, 0) * 1.5s) var(--ease-out) infinite;
  }

  /* wa-alarm — reserved for severity >= high (sharp double-beat). */
  .wa-alarm, .sev-3.wa-alarm, .sev-4.wa-alarm {
    animation: wa-alarm 1.5s var(--ease-out) infinite;
  }
  /* …and the stronger variant for extreme. */
  .sev-4 .wa-alarm, .sev-4.wa-alarm, [data-sev='4'].wa-alarm, .wa-alarm-extreme {
    animation: wa-alarm-extreme 1.15s steps(1, end) infinite;
  }

  /* List ripple instead of unison throb: --i is set per item. */
  .wa-stagger > * { animation-delay: calc(var(--i, 0) * 90ms); }
  .wa-stagger-soft > * { animation-delay: calc(var(--i, 0) * 45ms); }

  /* Specular + tactile feedback. */
  .glass-1::before, .glass-2::before, .glass-3::before, .wa-sheen::before {
    transition: opacity 0.45s var(--ease-out), transform 0.5s var(--ease-out);
  }
  .glass-1, .glass-2, .glass-3 {
    transition: transform 0.32s var(--ease-spring), box-shadow 0.34s var(--ease-out), border-color 0.3s var(--ease-out);
  }
  .wa-lift {
    transition: transform 0.3s var(--ease-spring), box-shadow 0.3s var(--ease-out);
    will-change: transform;
  }
  .wa-lift:hover { transform: translate3d(0, -3px, 0); }
  .wa-lift:active { transform: translate3d(0, 0, 0) scale(0.988); transition-duration: 0.08s; }
  .wa-press:active { transform: scale(0.97); transition: transform 0.08s var(--ease-out); }

  /* Addictive: live signal ring with a sweeping highlight. */
  .wa-ring::after { animation: wa-ring-sweep calc(7s - var(--sev-strength, 0) * 4.4s) linear infinite; }
  /* Addictive: scanline over live data. */
  .wa-scan::after { animation: wa-scan calc(4.4s - var(--sev-strength, 0) * 2.6s) linear infinite; }
}

/* The reduce belt to the no-preference suspenders: every motion declaration
   that exists above is switched off here by name, so a reader who asked for
   no motion gets identical, fully readable, static glass. */
@media (prefers-reduced-motion: reduce) {
  .glass-1, .glass-2, .glass-3, .wa-breathe, .wa-pulse, .wa-sev-dot.wa-pulse,
  .wa-alarm, .wa-alarm-extreme, .wa-stagger > *, .wa-stagger-soft > *,
  .wa-ring::after, .wa-scan::after, .wa-lift, .wa-press {
    animation: none;
    transition: none;
  }
  .glass-1::before, .glass-2::before, .glass-3::before, .wa-sheen::before {
    transition: none;
    transform: none;
  }
  .wa-lift:hover, .wa-lift:active, .wa-press:active, .glass-2:hover, .glass-3:hover {
    transform: none;
    --sheen-opacity: 0.3;
  }
}

/* wa-ring — a live "signal" ring; the ::after is the sweeping highlight. */
.wa-ring {
  position: relative;
  display: inline-grid;
  place-items: center;
  inline-size: clamp(40px, 4.6vw, 60px);
  block-size: clamp(40px, 4.6vw, 60px);
  border-radius: 50%;
  isolation: isolate;
}
.wa-ring::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: conic-gradient(from calc(var(--sev-hue, 205) * 1deg), transparent 0 54%, var(--sev) 76%, transparent 90% 100%);
  opacity: 0.85;
  -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 4px), #000 calc(100% - 3px));
  mask: radial-gradient(farthest-side, transparent calc(100% - 4px), #000 calc(100% - 3px));
}
.wa-ring::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  pointer-events: none;
  background: conic-gradient(from 0deg, transparent 0 78%, color-mix(in srgb, var(--white-glint) 85%, transparent) 88%, transparent 96% 100%);
  -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 4px), #000 calc(100% - 3px));
  mask: radial-gradient(farthest-side, transparent calc(100% - 4px), #000 calc(100% - 3px));
}
.wa-ring > * { position: relative; z-index: 1; }

/* wa-scan — subtle scanline over live data. */
.wa-scan { position: relative; overflow: hidden; }
.wa-scan::after {
  content: "";
  position: absolute;
  z-index: 0;
  inset: 0 0 auto;
  block-size: 32%;
  pointer-events: none;
  background: linear-gradient(180deg, transparent, color-mix(in srgb, var(--signal) 12%, transparent) 55%, transparent);
}
/* Under reduce the affordance is a static top edge, never a moving bar. */
.wa-scan::after { transform: none; }

/* wa-num — count-up-ready numerals: tabular mono, no width jitter. */
.wa-num, .wa-count {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums lining-nums;
  font-feature-settings: "tnum" 1, "lnum" 1;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.wa-count { font-size: clamp(26px, 3.6vw, 46px); line-height: 1; }

/* wa-tint — shell-level ambient tint that already tracks --signal. */
.wa-tint { position: relative; isolation: isolate; }
.wa-tint::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  background:
    radial-gradient(120% 92% at 10% 0%, color-mix(in srgb, var(--signal) calc(9% + var(--signal-strength, 0) * 17%), transparent), transparent 62%),
    radial-gradient(92% 84% at 92% 6%, color-mix(in srgb, var(--signal-2) 9%, transparent), transparent 60%);
}
.wa-livechip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 4px 10px;
  border: 1px solid color-mix(in srgb, var(--sev) 40%, var(--line));
  border-radius: var(--radius-pill);
  color: color-mix(in srgb, var(--sev) 72%, var(--text));
  background: color-mix(in srgb, var(--sev) 10%, transparent);
  font: 800 10px var(--mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ==========================================================================
   6. Responsive — phone / tablet / desktop, containers, safe areas
   ========================================================================== */

/* Phone */
@media (max-width: 600px) {
  :root {
    --wa-pad-1: 14px;
    --wa-pad-2: 16px;
    --wa-pad-3: 18px;
    --wa-sheen-r: clamp(110px, 46vw, 220px);
    --grain-opacity: 0.04;
  }
  .wa-grid { grid-template-columns: 1fr; }
  .wa-row-wrap { flex-wrap: wrap; }
}

/* Tablet */
@media (min-width: 601px) and (max-width: 1024px) {
  :root { --wa-sheen-r: clamp(160px, 30vmax, 340px); }
  .wa-grid { grid-template-columns: repeat(auto-fit, minmax(min(280px, 100%), 1fr)); }
}

/* Desktop */
@media (min-width: 1025px) {
  :root { --wa-pad-3: clamp(28px, 2.6vw, 46px); }
  .wa-grid { grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr)); }
  .wa-lift:hover { transform: translate3d(0, -4px, 0); }
}

/* Cards adapt to their own width, not the viewport. */
@container (max-width: 420px) {
  .wa-count { font-size: clamp(22px, 9cqw, 34px); }
  .wa-kpi { font-size: 12px; }
  .wa-sev-fill { border-radius: var(--radius-sm); }
}
@container (min-width: 421px) and (max-width: 720px) {
  .wa-count { font-size: clamp(26px, 7cqw, 40px); }
}
@container (min-width: 721px) {
  .wa-kpi-lg { font-size: 15px; }
}

/* Opt-in responsive grid for widget cards. */
.wa-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(280px, 100%), 1fr));
  gap: var(--wa-gap);
  align-items: start;
}

/* Notched phones. */
body {
  padding-left: env(safe-area-inset-left);
  padding-right: env(safe-area-inset-right);
}
.app-rail { left: max(16px, env(safe-area-inset-left)); }
.app-topbar { margin-right: max(18px, env(safe-area-inset-right)); }
.wa-safe {
  padding-left: max(var(--wa-bp-pad), env(safe-area-inset-left));
  padding-right: max(var(--wa-bp-pad), env(safe-area-inset-right));
  padding-bottom: max(var(--wa-bp-pad), env(safe-area-inset-bottom));
}

/* Touch targets: >= 44 x 44 px on coarse pointers. */
@media (pointer: coarse) {
  .btn, .icon-btn, .loc-pill, .signal-chip, .wa-tap,
  button, summary, [role='button'], input, select, textarea {
    min-block-size: var(--wa-tap);
  }
  .icon-btn, .loc-pill, .signal-chip, .wa-tap, .chip.wa-tap {
    min-inline-size: var(--wa-tap);
  }
  .rail-link { min-height: 52px; }
}

/* Zero horizontal overflow at any width >= 320px. */
html, body { max-width: 100%; }
.glass-1 img, .glass-2 img, .glass-3 img, .wa-grid img { max-width: 100%; height: auto; }
.wa-grid > *, .glass-1, .glass-2, .glass-3 { min-width: 0; }

/* ==========================================================================
   7. High contrast, forced colors, print
   ========================================================================== */

@media (prefers-contrast: more) {
  /* [override] tokens: raise edge contrast, drop the decorative layers. */
  :root {
    --line: color-mix(in srgb, var(--text) 42%, transparent);
    --line-strong: color-mix(in srgb, var(--text) 62%, transparent);
    --grain-opacity: 0;
    --sheen-opacity: 0.12;
  }
  .glass-1, .glass-2, .glass-3 {
    background-image: linear-gradient(var(--surface-solid), var(--surface-solid)) padding-box, linear-gradient(var(--text), var(--text)) border-box;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
  .wa-sev-surface { border-color: color-mix(in srgb, var(--sev) 70%, var(--text)); }
  .wa-sev-text { color: var(--text); }
}

@media (forced-colors: active) {
  .glass-1, .glass-2, .glass-3 {
    background-image: none;
    background-color: Canvas;
    border-color: CanvasText;
    box-shadow: none;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    color: CanvasText;
  }
  .glass-1::before, .glass-2::before, .glass-3::before,
  .glass-1::after, .glass-2::after, .glass-3::after,
  .wa-grain::after, .wa-tint::before, .wa-scan::after {
    display: none;
  }
  .wa-sev-surface, .wa-sev-rail, .wa-livechip { border-color: CanvasText; color: CanvasText; }
  .wa-sev-dot { background: Highlight; forced-color-adjust: none; }
  .wa-ring::before, .wa-ring::after { background: none; border: 2px solid CanvasText; }
}

@media print {
  /* [override] no glass, no grain, black on white. */
  :root { --grain-opacity: 0; --sheen-opacity: 0; --dither-layer: none; }
  html, body {
    background: #fff;
    color: #000;
  }
  .glass-1, .glass-2, .glass-3 {
    background-image: none;
    background-color: #fff;
    border: 1px solid #000;
    box-shadow: none;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    color: #000;
  }
  .glass-1::before, .glass-2::before, .glass-3::before,
  .glass-1::after, .glass-2::after, .glass-3::after,
  .wa-grain::after, .wa-ring::before, .wa-ring::after,
  .wa-scan::after, .wa-tint::before,
  .ambient-scene, body::before {
    display: none;
  }
  .wa-breathe, .wa-lift, .wa-lift:hover { transform: none; }
}