/* ==========================================================================
   LAPAKTOTO — NETWORK STATUS & OPEN DATA HUB
   main.css · Pure CSS3 · BEM · no framework, no build step
   Theme: "Dark Data Center" — pitch black, hairline borders, tabular data
   ========================================================================== */

/* --------------------------------------------------------------------------
   01 · TOKENS
   -------------------------------------------------------------------------- */
:root {
  /* surface */
  --c-void:        #08080a;
  --c-panel:       #0b0b0e;
  --c-panel-alt:   #101014;
  --c-panel-deep:  #050506;

  /* hairlines */
  --c-line:        #1b1b20;
  --c-line-hi:     #2c2c34;

  /* ink */
  --c-ink:         #e8e8ec;
  --c-ink-mid:     #96969f;
  --c-ink-low:     #5a5a64;

  /* signal */
  --c-gold:        #ffc800;
  --c-gold-deep:   #6f5700;
  --c-gold-ghost:  rgba(255, 200, 0, .09);
  --c-amber:       #ff9300;
  --c-amber-ghost: rgba(255, 147, 0, .10);
  --c-crimson:     #ff2f40;
  --c-crimson-ghost: rgba(255, 47, 64, .10);

  /* type */
  --f-mono: ui-monospace, SFMono-Regular, "SF Mono", "JetBrains Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --f-sans: "Inter", "Helvetica Neue", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;

  /* metrics */
  --s-1: 4px;  --s-2: 8px;  --s-3: 12px; --s-4: 16px;
  --s-5: 24px; --s-6: 32px; --s-7: 48px; --s-8: 64px;
  --aside-w: 252px;
  --hair: 1px solid var(--c-line);
  --topbar-h: 56px;
}

/* --------------------------------------------------------------------------
   02 · RESET / BASE
   -------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--c-void);
  /* technical reference grid — not decoration, an alignment lattice */
  background-image:
    linear-gradient(to right,  rgba(255,255,255,.020) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,.020) 1px, transparent 1px);
  background-size: 56px 56px;
  color: var(--c-ink);
  font-family: var(--f-sans);
  font-size: 14px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, p, ul, ol, dl, dd, figure, pre { margin: 0; }
ul, ol { padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
table { border-collapse: collapse; border-spacing: 0; }
img, svg { display: block; max-width: 100%; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

::selection { background: var(--c-gold); color: #000; }

:focus-visible {
  outline: 2px solid var(--c-gold);
  outline-offset: 2px;
}

/* thin, colorless scrollbars — the chrome must not compete with the data */
* { scrollbar-width: thin; scrollbar-color: var(--c-line-hi) transparent; }
*::-webkit-scrollbar { width: 8px; height: 8px; }
*::-webkit-scrollbar-track { background: transparent; }
*::-webkit-scrollbar-thumb { background: var(--c-line-hi); }
*::-webkit-scrollbar-thumb:hover { background: #3b3b45; }

/* --------------------------------------------------------------------------
   03 · UTILITY PRIMITIVES
   -------------------------------------------------------------------------- */
.mono { font-family: var(--f-mono); font-variant-numeric: tabular-nums; }

.u-num {
  font-family: var(--f-mono);
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1, "zero" 1;
}

.u-label {
  font-family: var(--f-mono);
  font-size: 10px;
  line-height: 1.2;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--c-ink-low);
}

.u-hide { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.skip {
  position: absolute; top: -100px; left: 0; z-index: 99;
  padding: 10px 16px;
  background: var(--c-gold); color: #000;
  font-family: var(--f-mono); font-size: 11px; letter-spacing: .1em; text-transform: uppercase;
}
.skip:focus { top: 0; }

/* --------------------------------------------------------------------------
   04 · SHELL — sidebar + main
   -------------------------------------------------------------------------- */
.shell {
  display: grid;
  grid-template-columns: var(--aside-w) minmax(0, 1fr);
  min-height: 100vh;
}

.shell__aside {
  position: sticky;
  top: 0;
  align-self: start;
  height: 100vh;
  display: flex;
  flex-direction: column;
  border-right: var(--hair);
  background: var(--c-panel-deep);
}

.shell__main { min-width: 0; display: flex; flex-direction: column; }

.shell__content {
  flex: 1 1 auto;
  padding: var(--s-6);
  display: flex;
  flex-direction: column;
  gap: var(--s-6);
}

/* --------------------------------------------------------------------------
   05 · BRAND
   -------------------------------------------------------------------------- */
.brand {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  padding: var(--s-4);
  border-bottom: var(--hair);
  min-height: var(--topbar-h);
}

.brand__mark {
  flex: 0 0 auto;
  width: 30px; height: 30px;
  display: grid; place-items: center;
  background: var(--c-gold);
  color: #000;
  font-family: var(--f-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .04em;
}

.brand__meta { display: flex; flex-direction: column; min-width: 0; }

.brand__name {
  font-family: var(--f-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .18em;
  color: var(--c-ink);
}

.brand__desc {
  font-family: var(--f-mono);
  font-size: 9px;
  letter-spacing: .10em;
  color: var(--c-ink-low);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* --------------------------------------------------------------------------
   06 · NAV
   -------------------------------------------------------------------------- */
.nav { flex: 1 1 auto; overflow-y: auto; padding: var(--s-4) 0; }

.nav__group {
  padding: var(--s-4) var(--s-4) var(--s-2);
  font-family: var(--f-mono);
  font-size: 9px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--c-ink-low);
}
.nav__group:first-child { padding-top: 0; }

.nav__list { border-top: var(--hair); }

.nav__link {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  padding: 10px var(--s-4);
  border-bottom: var(--hair);
  border-left: 2px solid transparent;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--c-ink-mid);
  transition: background-color .12s linear, color .12s linear, border-color .12s linear;
}

.nav__link:hover { background: var(--c-panel-alt); color: var(--c-ink); }

.nav__link--active {
  background: var(--c-gold-ghost);
  border-left-color: var(--c-gold);
  color: var(--c-ink);
}

.nav__link--locked { cursor: not-allowed; color: var(--c-ink-low); }
.nav__link--locked:hover { background: transparent; color: var(--c-ink-low); }

.nav__idx { color: var(--c-ink-low); font-size: 10px; }
.nav__link--active .nav__idx { color: var(--c-gold); }

.nav__label { flex: 1 1 auto; }

.nav__tag {
  font-size: 8px;
  letter-spacing: .12em;
  padding: 2px 5px;
  border: 1px solid var(--c-gold-deep);
  color: var(--c-gold);
}
.nav__tag--muted { border-color: var(--c-line-hi); color: var(--c-ink-low); }

/* --------------------------------------------------------------------------
   07 · ASIDE FOOTER (build stamp)
   -------------------------------------------------------------------------- */
.stamp { border-top: var(--hair); padding: var(--s-4); display: grid; gap: 6px; }

.stamp__row { display: flex; justify-content: space-between; gap: var(--s-2); }

.stamp__key {
  font-family: var(--f-mono); font-size: 9px; letter-spacing: .12em;
  text-transform: uppercase; color: var(--c-ink-low);
}
.stamp__val { font-family: var(--f-mono); font-size: 10px; color: var(--c-ink-mid); }
.stamp__val--gold { color: var(--c-gold); }

/* --------------------------------------------------------------------------
   08 · TOPBAR
   -------------------------------------------------------------------------- */
.topbar {
  position: sticky; top: 0; z-index: 20;
  min-height: var(--topbar-h);
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--s-4);
  padding: 0 var(--s-6);
  border-bottom: var(--hair);
  background: rgba(8, 8, 10, .92);
}

.topbar__path {
  display: flex; align-items: center; gap: var(--s-2);
  font-family: var(--f-mono); font-size: 11px; letter-spacing: .14em;
  text-transform: uppercase; color: var(--c-ink-low);
}
.topbar__path b { color: var(--c-ink); font-weight: 500; }
.topbar__sep { color: var(--c-line-hi); }

.crumb { display: flex; align-items: center; gap: var(--s-2); }
.crumb__item { display: flex; align-items: center; gap: var(--s-2); }
.crumb__link { color: var(--c-ink-low); transition: color .12s linear; }
.crumb__link:hover { color: var(--c-gold); }
.crumb__sep { color: var(--c-line-hi); }

.topbar__right { display: flex; align-items: center; gap: var(--s-5); }

.topbar__item {
  font-family: var(--f-mono); font-size: 11px; letter-spacing: .08em;
  color: var(--c-ink-low);
  display: flex; align-items: center; gap: var(--s-2);
}
.topbar__item b { color: var(--c-ink); font-weight: 500; font-variant-numeric: tabular-nums; }

/* sync blip */
.sync { width: 6px; height: 6px; background: var(--c-line-hi); transition: background-color .18s linear; }
.sync.is-flash { background: var(--c-gold); }

/* --------------------------------------------------------------------------
   09 · PILL / STATUS
   -------------------------------------------------------------------------- */
.pill {
  display: inline-flex; align-items: center; gap: var(--s-2);
  padding: 4px 10px;
  border: 1px solid var(--c-line-hi);
  font-family: var(--f-mono); font-size: 10px; letter-spacing: .12em;
  text-transform: uppercase; color: var(--c-ink-mid);
  white-space: nowrap;
}
.pill__dot { width: 6px; height: 6px; background: currentColor; }

.pill--live { border-color: var(--c-gold-deep); background: var(--c-gold-ghost); color: var(--c-gold); }
.pill--warn { border-color: rgba(255,147,0,.4);  background: var(--c-amber-ghost);   color: var(--c-amber); }
.pill--down { border-color: rgba(255,47,64,.4);  background: var(--c-crimson-ghost); color: var(--c-crimson); }

.pill--live .pill__dot { animation: blip 1.6s steps(1, end) infinite; }

@keyframes blip { 0%, 60% { opacity: 1; } 61%, 100% { opacity: .18; } }

/* --------------------------------------------------------------------------
   10 · TICKER
   -------------------------------------------------------------------------- */
.ticker {
  position: relative;
  overflow: hidden;
  border-top: var(--hair);
  border-bottom: var(--hair);
  background: var(--c-panel-deep);
}

.ticker__track { display: flex; width: max-content; animation: slide 46s linear infinite; }

.ticker__group { display: flex; flex: 0 0 auto; }

.ticker__item {
  display: flex; align-items: center; gap: var(--s-2);
  padding: 9px var(--s-5);
  border-right: var(--hair);
  font-family: var(--f-mono); font-size: 11px; letter-spacing: .06em;
  white-space: nowrap;
}
.ticker__key { color: var(--c-ink-low); }
.ticker__val { color: var(--c-gold); font-variant-numeric: tabular-nums; font-style: normal; }
.ticker__val--down { color: var(--c-crimson); }

@keyframes slide { from { transform: translate3d(0,0,0); } to { transform: translate3d(-50%,0,0); } }

.ticker:hover .ticker__track { animation-play-state: paused; }

/* --------------------------------------------------------------------------
   11 · SECTION HEAD
   -------------------------------------------------------------------------- */
.head { display: flex; align-items: flex-end; justify-content: space-between; gap: var(--s-4); flex-wrap: wrap; }

.head__title {
  font-family: var(--f-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--c-ink);
}
.head__title::before { content: "▚ "; color: var(--c-gold); }

.head__note {
  font-family: var(--f-mono); font-size: 10px; letter-spacing: .1em;
  text-transform: uppercase; color: var(--c-ink-low);
}

/* --------------------------------------------------------------------------
   12 · METRICS GRID (hairline collapse trick)
   -------------------------------------------------------------------------- */
.metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--c-line);
  border: var(--hair);
}

.metric { background: var(--c-panel); padding: var(--s-5); display: flex; flex-direction: column; gap: var(--s-3); }

.metric__label {
  font-family: var(--f-mono); font-size: 10px; letter-spacing: .14em;
  text-transform: uppercase; color: var(--c-ink-low);
}

.metric__value {
  font-family: var(--f-mono);
  font-size: clamp(28px, 3.4vw, 40px);
  line-height: 1;
  font-weight: 600;
  letter-spacing: -.02em;
  font-variant-numeric: tabular-nums;
  color: var(--c-ink);
}

.metric__unit { font-size: .44em; color: var(--c-ink-low); margin-left: 3px; letter-spacing: 0; }

.metric__foot {
  font-family: var(--f-mono); font-size: 10px; letter-spacing: .06em;
  color: var(--c-ink-low);
  display: flex; align-items: center; gap: var(--s-2);
  margin-top: auto;
}

.metric--signal .metric__value { color: var(--c-gold); }
.metric--fault  .metric__value { color: var(--c-crimson); }

.delta { font-family: var(--f-mono); font-size: 10px; padding: 1px 4px; border: 1px solid currentColor; }
.delta--up   { color: var(--c-gold); }
.delta--down { color: var(--c-crimson); }
.delta--flat { color: var(--c-ink-low); }

/* --------------------------------------------------------------------------
   13 · PANEL
   -------------------------------------------------------------------------- */
.panel { border: var(--hair); background: var(--c-panel); display: flex; flex-direction: column; }

.panel__head {
  display: flex; align-items: center; justify-content: space-between; gap: var(--s-3);
  padding: var(--s-3) var(--s-4);
  border-bottom: var(--hair);
  background: var(--c-panel-alt);
}

.panel__title {
  font-family: var(--f-mono); font-size: 11px; font-weight: 600;
  letter-spacing: .16em; text-transform: uppercase; color: var(--c-ink);
}

.panel__meta {
  font-family: var(--f-mono); font-size: 10px; letter-spacing: .08em; color: var(--c-ink-low);
}

.panel__body { padding: var(--s-4); flex: 1 1 auto; }
.panel__body--flush { padding: 0; }
.panel__body--chart { display: flex; flex-direction: column; }

.split { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); gap: var(--s-5); }

/* --------------------------------------------------------------------------
   14 · SPARK (throughput histogram)
   -------------------------------------------------------------------------- */
.spark { display: flex; align-items: flex-end; gap: 2px; flex: 1 1 auto; min-height: 132px; }

.spark__bar {
  flex: 1 1 0;
  min-height: 2px;
  background: var(--c-gold);
  opacity: .3;
  transition: height .45s cubic-bezier(.22,.61,.36,1), opacity .45s linear;
}
.spark__bar--peak { background: var(--c-crimson); opacity: 1; }

.spark-axis {
  display: flex; justify-content: space-between;
  flex: 0 0 auto;
  margin-top: var(--s-3); padding-top: var(--s-2);
  border-top: var(--hair);
  font-family: var(--f-mono); font-size: 9px; letter-spacing: .1em; color: var(--c-ink-low);
}

/* --------------------------------------------------------------------------
   15 · LOG
   -------------------------------------------------------------------------- */
.log__item { display: grid; gap: 2px; padding: var(--s-3) var(--s-4); border-bottom: var(--hair); }
.log__item:last-child { border-bottom: 0; }

.log__time { font-family: var(--f-mono); font-size: 10px; letter-spacing: .08em; color: var(--c-ink-low); }

.log__text { font-family: var(--f-mono); font-size: 11.5px; line-height: 1.5; color: var(--c-ink-mid); }
.log__text b { color: var(--c-ink); font-weight: 500; }

.log__code { color: var(--c-gold); }
.log__code--err { color: var(--c-crimson); }

/* --------------------------------------------------------------------------
   16 · DATA GRID (table)
   -------------------------------------------------------------------------- */
.table-wrap { overflow-x: auto; }

.grid { width: 100%; min-width: 880px; font-family: var(--f-mono); font-size: 12px; }

.grid__caption { text-align: left; padding: 0 0 var(--s-3); font-size: 10px; letter-spacing: .12em; text-transform: uppercase; color: var(--c-ink-low); }

.grid__th {
  position: sticky; top: 0;
  text-align: left;
  padding: 10px var(--s-4);
  border-bottom: 1px solid var(--c-line-hi);
  background: var(--c-panel-alt);
  font-size: 9.5px; font-weight: 600; letter-spacing: .16em; text-transform: uppercase;
  color: var(--c-ink-low);
  white-space: nowrap;
}
.grid__th--num { text-align: right; }

.grid__row { border-bottom: var(--hair); transition: background-color .12s linear; }
.grid__row:hover { background: var(--c-panel-alt); }
.grid__row:last-child { border-bottom: 0; }
.grid__row--down { background: var(--c-crimson-ghost); }
.grid__row--down:hover { background: rgba(255,47,64,.14); }

.grid__cell { padding: 11px var(--s-4); color: var(--c-ink-mid); white-space: nowrap; font-variant-numeric: tabular-nums; }
.grid__cell--num { text-align: right; }
.grid__cell--id { color: var(--c-ink); letter-spacing: .04em; }
.grid__cell--load { width: 128px; }

.status { display: inline-flex; align-items: center; gap: 6px; font-size: 10px; letter-spacing: .12em; text-transform: uppercase; }
.status__dot { width: 6px; height: 6px; background: currentColor; }
.status--up   { color: var(--c-gold); }
.status--warn { color: var(--c-amber); }
.status--down { color: var(--c-crimson); }

.bar { display: block; height: 6px; background: var(--c-line); }
.bar__fill { display: block; height: 100%; background: var(--c-gold); transition: width .45s cubic-bezier(.22,.61,.36,1); }
.bar__fill--warn { background: var(--c-amber); }
.bar__fill--down { background: var(--c-crimson); }

/* --------------------------------------------------------------------------
   17 · DOC (about page typography)
   -------------------------------------------------------------------------- */
.doc { max-width: 78ch; display: flex; flex-direction: column; gap: var(--s-5); }

.doc__eyebrow { font-family: var(--f-mono); font-size: 10px; letter-spacing: .2em; text-transform: uppercase; color: var(--c-gold); }

.doc__title {
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.12;
  font-weight: 650;
  letter-spacing: -.02em;
  color: var(--c-ink);
}

.doc__lead { font-size: 15px; line-height: 1.7; color: var(--c-ink-mid); }

.doc__h { font-family: var(--f-mono); font-size: 12px; font-weight: 600; letter-spacing: .18em; text-transform: uppercase; color: var(--c-ink); }
.doc__h::before { content: "// "; color: var(--c-gold); }

.doc__p { font-size: 14px; line-height: 1.75; color: var(--c-ink-mid); }
.doc__p code { font-family: var(--f-mono); font-size: 12.5px; color: var(--c-gold); background: var(--c-gold-ghost); padding: 1px 5px; }

.doc__list { display: grid; gap: var(--s-2); }
.doc__list li {
  display: grid; grid-template-columns: 28px minmax(0,1fr); gap: var(--s-3);
  font-family: var(--f-mono); font-size: 12px; line-height: 1.65; color: var(--c-ink-mid);
  padding: var(--s-2) 0; border-bottom: var(--hair);
}
.doc__list li b { color: var(--c-gold); font-weight: 500; }

.section { display: flex; flex-direction: column; gap: var(--s-4); }

/* --------------------------------------------------------------------------
   18 · STACK DIAGRAM (layers)
   -------------------------------------------------------------------------- */
.layers { display: grid; gap: 1px; background: var(--c-line); border: var(--hair); }

.layer {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr) 132px;
  gap: var(--s-4);
  align-items: center;
  padding: var(--s-4);
  background: var(--c-panel);
}

.layer__idx { font-family: var(--f-mono); font-size: 11px; letter-spacing: .1em; color: var(--c-gold); }
.layer__name { display: block; font-family: var(--f-mono); font-size: 12.5px; color: var(--c-ink); letter-spacing: .04em; }
.layer__desc { display: block; font-size: 12px; color: var(--c-ink-low); margin-top: 3px; }
.layer__state { font-family: var(--f-mono); font-size: 10px; letter-spacing: .12em; text-transform: uppercase; text-align: right; color: var(--c-ink-mid); }

/* --------------------------------------------------------------------------
   19 · API ENDPOINTS
   -------------------------------------------------------------------------- */
.api { display: grid; gap: 1px; background: var(--c-line); border: var(--hair); }

.endpoint { background: var(--c-panel); padding: var(--s-4); display: grid; gap: var(--s-3); }

.endpoint__sig { display: flex; align-items: center; gap: var(--s-3); flex-wrap: wrap; }

.endpoint__method {
  font-family: var(--f-mono); font-size: 10px; font-weight: 700; letter-spacing: .12em;
  padding: 3px 8px; border: 1px solid var(--c-gold-deep); color: var(--c-gold);
}
.endpoint__method--post { border-color: var(--c-line-hi); color: var(--c-ink); }

.endpoint__path { font-family: var(--f-mono); font-size: 13px; color: var(--c-ink); letter-spacing: .02em; }
.endpoint__path em { color: var(--c-gold); font-style: normal; }

.endpoint__desc { font-size: 12.5px; color: var(--c-ink-low); line-height: 1.6; }

.code {
  overflow-x: auto;
  padding: var(--s-4);
  border: var(--hair);
  background: var(--c-panel-deep);
  font-family: var(--f-mono);
  font-size: 12px;
  line-height: 1.65;
  color: var(--c-ink-mid);
  white-space: pre;
}
.code b { color: var(--c-gold); font-weight: 400; }
.code i { color: var(--c-ink-low); font-style: normal; }

/* --------------------------------------------------------------------------
   20 · KEY/VALUE REGISTRY
   -------------------------------------------------------------------------- */
.kv { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 1px; background: var(--c-line); border: var(--hair); }
.kv__cell { background: var(--c-panel); padding: var(--s-4); display: grid; gap: 6px; }
.kv__key { font-family: var(--f-mono); font-size: 9.5px; letter-spacing: .14em; text-transform: uppercase; color: var(--c-ink-low); }
.kv__val { font-family: var(--f-mono); font-size: 13px; color: var(--c-ink); word-break: break-all; }
.kv__val--gold { color: var(--c-gold); }

/* --------------------------------------------------------------------------
   21 · FOOTER
   -------------------------------------------------------------------------- */
.foot {
  border-top: var(--hair);
  padding: var(--s-5) var(--s-6);
  display: flex; align-items: center; justify-content: space-between; gap: var(--s-4); flex-wrap: wrap;
  font-family: var(--f-mono); font-size: 10px; letter-spacing: .1em; text-transform: uppercase;
  color: var(--c-ink-low);
}
.foot__nav { display: flex; gap: var(--s-5); flex-wrap: wrap; }
.foot__link { color: var(--c-ink-mid); }
.foot__link:hover { color: var(--c-gold); }

/* --------------------------------------------------------------------------
   22 · REVEAL (IntersectionObserver hook)
   -------------------------------------------------------------------------- */
.js-reveal { opacity: 0; transform: translate3d(0, 10px, 0); }

.js-reveal.is-visible {
  opacity: 1;
  transform: none;
  transition: opacity .45s linear, transform .45s cubic-bezier(.22,.61,.36,1);
}

/* --------------------------------------------------------------------------
   23 · RESPONSIVE
   -------------------------------------------------------------------------- */
@media (max-width: 1180px) {
  .metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .split { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 900px) {
  .shell { grid-template-columns: minmax(0, 1fr); }

  .shell__aside { position: static; height: auto; border-right: 0; border-bottom: var(--hair); }
  .nav { padding: 0; overflow-x: auto; }
  .nav__group { display: none; }
  .nav__list { display: flex; border-top: 0; }
  .nav__link { border-bottom: 0; border-left: 0; border-top: 2px solid transparent; border-right: var(--hair); white-space: nowrap; }
  .nav__link--active { border-left-color: transparent; border-top-color: var(--c-gold); }
  .nav__tag { display: none; }
  .stamp { display: flex; flex-wrap: wrap; gap: var(--s-2) var(--s-5); }
  .stamp__row { justify-content: flex-start; gap: 6px; }

  .shell__content { padding: var(--s-4); gap: var(--s-5); }
  .topbar { padding: 0 var(--s-4); }
  .foot { padding: var(--s-4); }
  .layer { grid-template-columns: 40px minmax(0,1fr); }
  .layer__state { grid-column: 2; text-align: left; }
}

@media (max-width: 560px) {
  .metrics { grid-template-columns: minmax(0, 1fr); }
  .kv { grid-template-columns: minmax(0, 1fr); }
  .topbar__right { gap: var(--s-3); }
  .topbar__item--clock { display: none; }
}

/* --------------------------------------------------------------------------
   24 · MOTION PREFERENCES
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  .ticker__track { animation: none; }
  .pill--live .pill__dot { animation: none; }
  .js-reveal { opacity: 1; transform: none; transition: none; }
  .spark__bar, .bar__fill { transition: none; }
}