/* ===== Design tokens ===== */
:root {
  --bg: #0c0e12;
  --bg-raised: #14171d;
  --bg-inset: #0a0c10;
  --line: #262b34;
  --line-soft: #1c2028;
  --text: #edeff3;
  --text-dim: #9aa2b1;
  --text-faint: #5b6373;

  --accent: #ffb545;
  --accent-soft: rgba(255, 181, 69, 0.14);
  --accent-strong: #ffcd7a;

  --ok: #4fd8a4;
  --ok-soft: rgba(79, 216, 164, 0.14);
  --warn: #ff8a5b;
  --warn-soft: rgba(255, 138, 91, 0.16);
  --bad: #ff6b7a;
  --bad-soft: rgba(255, 107, 122, 0.16);

  --font-display: "Bricolage Grotesque", ui-sans-serif, serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;

  --radius: 14px;
  --radius-sm: 9px;
  --shadow-panel: 0 1px 0 rgba(255, 255, 255, 0.03) inset, 0 12px 32px -16px rgba(0, 0, 0, 0.6);
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f3f1ec;
    --bg-raised: #ffffff;
    --bg-inset: #eae7df;
    --line: #ddd8cc;
    --line-soft: #e6e2d7;
    --text: #1b1c1e;
    --text-dim: #5a5c63;
    --text-faint: #94969c;

    --accent: #c97a1f;
    --accent-soft: rgba(201, 122, 31, 0.12);
    --accent-strong: #a8630f;

    --ok: #1f9d6b;
    --ok-soft: rgba(31, 157, 107, 0.12);
    --warn: #d9662f;
    --warn-soft: rgba(217, 102, 47, 0.12);
    --bad: #d13a4b;
    --bad-soft: rgba(209, 58, 75, 0.12);

    --shadow-panel: 0 1px 0 rgba(255, 255, 255, 0.6) inset, 0 12px 28px -18px rgba(30, 25, 10, 0.35);
  }
}

* { box-sizing: border-box; }
html, body { height: 100%; }

body {
  margin: 0;
  background: var(--bg);
  background-image:
    radial-gradient(circle at 12% -10%, var(--accent-soft), transparent 45%),
    radial-gradient(circle at 100% 0%, rgba(79, 216, 164, 0.08), transparent 40%);
  color: var(--text);
  font-family: var(--font-mono);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  overflow-x: hidden;
}

@media (prefers-reduced-motion: no-preference) {
  .scanlines {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 50;
    background: repeating-linear-gradient(
      to bottom,
      rgba(255, 255, 255, 0.012) 0px,
      rgba(255, 255, 255, 0.012) 1px,
      transparent 1px,
      transparent 3px
    );
    mix-blend-mode: overlay;
  }
}

a { color: inherit; }
code {
  font-family: var(--font-mono);
  background: var(--bg-inset);
  border: 1px solid var(--line-soft);
  border-radius: 5px;
  padding: 0.1em 0.4em;
  font-size: 0.9em;
  color: var(--text-dim);
}

/* ===== Topbar ===== */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px clamp(18px, 4vw, 48px);
  border-bottom: 1px solid var(--line-soft);
  position: sticky;
  top: 0;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  z-index: 10;
}

.topbar__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.02em;
  font-size: 15px;
}

.topbar__mark {
  color: var(--accent);
  font-size: 14px;
}

.topbar__name-dim {
  color: var(--text-faint);
  font-weight: 500;
}

.topbar__status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  text-transform: uppercase;
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-faint);
  flex-shrink: 0;
}

.dot--live { background: var(--ok); box-shadow: 0 0 0 3px var(--ok-soft); }
.dot--warn { background: var(--warn); box-shadow: 0 0 0 3px var(--warn-soft); }
.dot--bad { background: var(--bad); box-shadow: 0 0 0 3px var(--bad-soft); }

@media (prefers-reduced-motion: no-preference) {
  .dot--live { animation: dot-breathe 2.4s ease-in-out infinite; }
}
@keyframes dot-breathe {
  0%, 100% { box-shadow: 0 0 0 2px var(--ok-soft); }
  50% { box-shadow: 0 0 0 6px var(--ok-soft); }
}

/* ===== Deck / layout ===== */
.deck {
  max-width: 1080px;
  margin: 0 auto;
  padding: clamp(28px, 5vw, 56px) clamp(18px, 4vw, 48px) 80px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.hero__kicker {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
}

.hero__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(34px, 6vw, 54px);
  letter-spacing: -0.02em;
  line-height: 1;
}

.hero__canonical {
  display: inline-block;
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(11px, 1.6vw, 13px);
  letter-spacing: 0.04em;
  color: var(--text-dim);
  background: var(--bg-raised);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 16px;
}

/* ===== Rail (pulse + ping) ===== */
.rail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

@media (max-width: 720px) {
  .rail { grid-template-columns: 1fr; }
}

.panel {
  background: var(--bg-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow-panel);
}

.panel--wide { padding-bottom: 10px; }

.panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.panel__head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: -0.01em;
}

.panel__tag {
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--ok-soft);
  color: var(--ok);
}

.panel__tag--muted {
  background: var(--bg-inset);
  color: var(--text-faint);
  border: 1px solid var(--line-soft);
}

.panel__tag--warn { background: var(--warn-soft); color: var(--warn); }
.panel__tag--bad { background: var(--bad-soft); color: var(--bad); }

.panel__foot {
  margin: 14px 0 0;
  font-size: 12px;
  color: var(--text-faint);
}

/* Pulse visualization */
.panel--pulse { display: flex; flex-direction: column; align-items: center; text-align: center; }

.pulse {
  position: relative;
  width: 108px;
  height: 108px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 6px 0 14px;
}

.pulse__ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid var(--ok);
  opacity: 0.35;
}

@media (prefers-reduced-motion: no-preference) {
  .pulse__ring { animation: ring-expand 2.6s ease-out infinite; }
}
@keyframes ring-expand {
  0% { transform: scale(0.7); opacity: 0.5; }
  100% { transform: scale(1.35); opacity: 0; }
}

.pulse__core {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, var(--accent-strong), var(--ok) 75%);
  box-shadow: 0 0 26px -4px var(--ok);
}

.pulse__caption {
  margin: 0;
  font-size: 12.5px;
  color: var(--text-dim);
  max-width: 30ch;
}

/* Ping / counter */
.counter-label {
  margin: 0 0 4px;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.counter {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 46px;
  line-height: 1;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}

.btn {
  appearance: none;
  border: 1px solid var(--accent);
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.02em;
  padding: 11px 20px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: transform 0.12s ease, background 0.15s ease, box-shadow 0.15s ease;
}

.btn:hover { background: var(--accent); color: #201400; }
.btn:active { transform: scale(0.97); }
.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.btn__glyph {
  display: inline-block;
}
@media (prefers-reduced-motion: no-preference) {
  .btn.is-spinning .btn__glyph { animation: spin 0.5s linear; }
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== Stat grid ===== */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 14px;
}

.stat {
  background: var(--bg-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  box-shadow: var(--shadow-panel);
}

.stat__label {
  margin: 0 0 8px;
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.stat__value {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 22px;
  letter-spacing: -0.01em;
  font-variant-numeric: tabular-nums;
}

.stat__value--sm { font-size: 15px; font-family: var(--font-mono); font-weight: 500; }

/* ===== Subsystems ===== */
.subsystems {
  display: flex;
  flex-direction: column;
}

.subrow {
  display: grid;
  grid-template-columns: 1.4fr 100px 90px 1fr;
  align-items: center;
  gap: 14px;
  padding: 12px 4px;
  border-top: 1px solid var(--line-soft);
  font-size: 13px;
}

.subrow:first-child { border-top: none; }

@media (max-width: 640px) {
  .subrow { grid-template-columns: 1fr auto; row-gap: 8px; }
  .subrow__bar { grid-column: 1 / -1; }
}

.subrow__name { font-weight: 600; }

.subrow__status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ok);
}

.subrow__status.is-degraded { color: var(--warn); }

.subrow__latency {
  color: var(--text-dim);
  font-variant-numeric: tabular-nums;
}

.subrow__bar {
  height: 6px;
  border-radius: 999px;
  background: var(--bg-inset);
  overflow: hidden;
  border: 1px solid var(--line-soft);
}

.subrow__bar-fill {
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--ok), var(--accent));
  transition: width 0.5s ease;
}

.subrow__bar-fill.is-degraded {
  background: linear-gradient(90deg, var(--warn), var(--bad));
}

/* ===== Footer ===== */
.footer {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  justify-content: center;
  padding: 22px;
  color: var(--text-faint);
  font-size: 11.5px;
  letter-spacing: 0.02em;
  border-top: 1px solid var(--line-soft);
}

.footer__sep { color: var(--line); }

/* ===== Utility states ===== */
.is-loading { opacity: 0.5; }

@media (max-width: 420px) {
  .hero__title { font-size: 30px; }
  .counter { font-size: 38px; }
}