/* S.V.E.N. Inc. System Update Ledger — mechanical control interface */

:root {
  --ul-engine-black: #09090b;
  --ul-charcoal-steel: #202126;
  --ul-deep-red: #7f171d;
  --ul-signal-red: #b82b32;
  --ul-aged-gold: #c6983d;
  --ul-bright-brass: #e1bb62;
  --ul-warm-text: #eee3ce;
  --ul-muted-steel: #aaa7a0;
  --ul-line: rgba(193, 152, 61, 0.28);
  --ul-panel: rgba(32, 33, 38, 0.94);
  --ul-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --ul-sans: "Avenir Next", "Segoe UI", Candara, Calibri, sans-serif;
  --ul-display: "Avenir Next Condensed", "Avenir Next", "Segoe UI", sans-serif;
}

.ul-page {
  color: var(--ul-warm-text);
  background-color: var(--ul-engine-black);
  background-image:
    linear-gradient(rgba(126, 23, 29, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(193, 152, 61, 0.05) 1px, transparent 1px),
    radial-gradient(ellipse 70% 45% at 50% -10%, rgba(184, 43, 50, 0.18), transparent 55%),
    linear-gradient(180deg, #0c0c0f 0%, var(--ul-engine-black) 40%, #070708 100%);
  background-size: 48px 48px, 48px 48px, auto, auto;
  font-family: var(--ul-sans);
}

.ul-page .wrap {
  position: relative;
  max-width: 980px;
  margin: 0 auto;
  padding: 0 18px 48px;
}

.ul-page .main {
  position: relative;
  z-index: 1;
}

.ul-hero {
  position: relative;
  padding: 42px 0 28px;
  border-bottom: 1px solid var(--ul-line);
}

.ul-hero-emblem {
  width: 64px;
  height: 64px;
  margin-bottom: 18px;
  color: var(--ul-bright-brass);
}

.ul-eyebrow {
  margin: 0 0 12px;
  font-family: var(--ul-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ul-signal-red);
}

.ul-title {
  margin: 0;
  max-width: 16ch;
  font-family: var(--ul-display);
  font-size: clamp(2.2rem, 6vw, 3.4rem);
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.05;
  color: var(--ul-warm-text);
}

.ul-lead {
  margin: 16px 0 0;
  max-width: 54ch;
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--ul-muted-steel);
}

.ul-status-panel {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin: 28px 0;
  padding: 18px;
  border: 1px solid var(--ul-line);
  background:
    linear-gradient(145deg, rgba(127, 23, 29, 0.22), transparent 42%),
    var(--ul-panel);
  box-shadow: inset 0 0 0 1px rgba(225, 187, 98, 0.08);
}

.ul-bolt {
  position: absolute;
  width: 10px;
  height: 10px;
  border: 1px solid var(--ul-aged-gold);
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 35%, var(--ul-bright-brass), var(--ul-aged-gold) 55%, #6d5320 100%);
  box-shadow: inset 0 0 0 2px rgba(9, 9, 11, 0.35);
}

.ul-bolt--tl { top: 8px; left: 8px; }
.ul-bolt--tr { top: 8px; right: 8px; }
.ul-bolt--bl { bottom: 8px; left: 8px; }
.ul-bolt--br { bottom: 8px; right: 8px; }

.ul-meter {
  min-width: 0;
  padding: 10px 12px;
  border: 1px solid color-mix(in srgb, var(--ul-deep-red) 55%, transparent);
  background: rgba(9, 9, 11, 0.55);
}

.ul-meter-label {
  margin: 0;
  font-family: var(--ul-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ul-muted-steel);
}

.ul-meter-value {
  margin: 8px 0 0;
  font-family: var(--ul-mono);
  font-size: clamp(1rem, 2.4vw, 1.2rem);
  font-weight: 700;
  color: var(--ul-bright-brass);
}

.ul-meter-value--status {
  color: var(--ul-warm-text);
}

.ul-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 8px 0 18px;
}

.ul-filter {
  min-height: 42px;
  padding: 8px 14px;
  border: 1px solid var(--ul-line);
  background: var(--ul-charcoal-steel);
  color: var(--ul-muted-steel);
  font-family: var(--ul-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
}

.ul-filter:hover,
.ul-filter:focus-visible {
  border-color: var(--ul-bright-brass);
  color: var(--ul-warm-text);
  outline: none;
}

.ul-filter:focus-visible {
  outline: 2px solid var(--ul-bright-brass);
  outline-offset: 2px;
}

.ul-filter[aria-pressed="true"] {
  border-color: var(--ul-signal-red);
  background: rgba(127, 23, 29, 0.35);
  color: var(--ul-warm-text);
  box-shadow: inset 0 0 0 1px rgba(225, 187, 98, 0.2);
}

.ul-result-count {
  margin: 0 0 18px;
  min-height: 1.4em;
  font-family: var(--ul-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ul-muted-steel);
}

.ul-timeline {
  position: relative;
  margin: 0;
  padding: 0 0 0 22px;
  list-style: none;
  counter-reset: ul-release;
}

.ul-timeline::before {
  content: "";
  position: absolute;
  top: 8px;
  bottom: 8px;
  left: 5px;
  width: 3px;
  background:
    linear-gradient(180deg, var(--ul-signal-red), var(--ul-aged-gold) 45%, rgba(184, 43, 50, 0.25));
  box-shadow: 0 0 12px rgba(184, 43, 50, 0.35);
}

.ul-entry {
  position: relative;
  margin: 0 0 16px;
  padding: 18px 18px 16px;
  border: 1px solid var(--ul-line);
  background:
    linear-gradient(160deg, rgba(127, 23, 29, 0.14), transparent 40%),
    var(--ul-panel);
}

.ul-entry::before {
  content: "";
  position: absolute;
  top: 26px;
  left: -21px;
  width: 13px;
  height: 13px;
  border: 2px solid var(--ul-bright-brass);
  border-radius: 50%;
  background: var(--ul-engine-black);
  box-shadow: 0 0 0 3px rgba(184, 43, 50, 0.25);
}

.ul-entry[hidden] {
  display: none;
}

.ul-entry-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-bottom: 10px;
}

.ul-version {
  font-family: var(--ul-mono);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--ul-bright-brass);
}

.ul-date {
  font-family: var(--ul-mono);
  font-size: 0.82rem;
  color: var(--ul-muted-steel);
}

.ul-plate {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 2px 8px;
  border: 1px solid currentColor;
  font-family: var(--ul-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.ul-plate--major {
  color: var(--ul-signal-red);
  background: rgba(127, 23, 29, 0.25);
}

.ul-plate--feature {
  color: var(--ul-aged-gold);
  background: rgba(198, 152, 61, 0.12);
}

.ul-plate--patch {
  color: var(--ul-muted-steel);
  background: rgba(170, 167, 160, 0.08);
}

.ul-entry-title {
  margin: 0;
  font-family: var(--ul-display);
  font-size: clamp(1.15rem, 2.5vw, 1.45rem);
  font-weight: 700;
  line-height: 1.25;
  color: var(--ul-warm-text);
}

.ul-entry-summary {
  margin: 10px 0 0;
  font-size: 1rem;
  line-height: 1.65;
  color: var(--ul-muted-steel);
}

.ul-areas {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.ul-area {
  padding: 4px 8px;
  border: 1px solid rgba(170, 167, 160, 0.28);
  font-family: var(--ul-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--ul-warm-text);
}

.ul-details {
  margin-top: 12px;
}

.ul-details summary {
  cursor: pointer;
  font-family: var(--ul-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ul-aged-gold);
}

.ul-details summary:focus-visible {
  outline: 2px solid var(--ul-bright-brass);
  outline-offset: 2px;
}

.ul-details-list {
  margin: 10px 0 0;
  padding-left: 1.15rem;
  color: var(--ul-muted-steel);
  line-height: 1.55;
}

.ul-history-note {
  margin: 28px 0 8px;
  padding: 14px 16px;
  border-left: 3px solid var(--ul-aged-gold);
  background: rgba(32, 33, 38, 0.7);
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--ul-muted-steel);
}

.ul-page .footer {
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid var(--ul-line);
}

.ul-page .site-legal-links a {
  color: var(--ul-muted-steel);
}

.ul-page .site-legal-links a:hover,
.ul-page .site-legal-links a:focus-visible {
  color: var(--ul-bright-brass);
}

@media (max-width: 800px) {
  .ul-status-panel {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 560px) {
  .ul-status-panel {
    grid-template-columns: 1fr;
  }

  .ul-timeline {
    padding-left: 18px;
  }

  .ul-entry {
    padding: 16px 14px;
  }

  .ul-entry::before {
    left: -18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .ul-filter,
  .ul-page .site-legal-links a {
    transition: none;
  }
}

@media (forced-colors: active) {
  .ul-status-panel,
  .ul-entry,
  .ul-filter,
  .ul-plate,
  .ul-area {
    border: 1px solid CanvasText;
  }

  .ul-timeline::before,
  .ul-entry::before,
  .ul-bolt {
    forced-color-adjust: none;
  }
}

.ul-page .visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}