/* ─────────────────────────────────────────────
   AVICI — instrument panel at night
   ───────────────────────────────────────────── */

:root {
  --bg:        #0b0d10;
  --bg-elev:  #14171c;
  --bg-soft:  #11141a;
  --border:    #232830;
  --border-soft: #1a1e25;
  --text:      #d8dde4;
  --text-dim:  #98a1ae;
  --text-mute: #6a7280;
  --accent:    #ffb84d;   /* amber instrument glow */
  --accent-dim: #b8843a;
  --link:      #8ab4f8;
  --link-hover: #b3cdfc;

  --u-high:   #ff6b6b;
  --u-med:    #ffb84d;
  --u-low:    #6aa3ff;

  --seg-ga:   #6aa3ff;
  --seg-ba:   #c39bff;
  --seg-ca:   #5fd9b9;
  --seg-ma:   #ff9f6a;
  --seg-edu:   #ffe07a;

  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --radius: 4px;
  --maxw: 1100px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

/* faint grid background so it feels like a panel, not a void */
body {
  background-image:
    linear-gradient(var(--border-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--border-soft) 1px, transparent 1px);
  background-size: 48px 48px;
  background-position: -1px -1px;
  background-attachment: fixed;
}

a { color: var(--link); text-decoration: none; }
a:hover { color: var(--link-hover); text-decoration: underline; text-underline-offset: 3px; }

/* ─── ticker ─── */
.ticker {
  background: var(--accent);
  color: var(--bg);
  overflow: hidden;
  height: 30px;
  display: flex;
  align-items: center;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
}
.ticker-track {
  display: inline-flex;
  flex-shrink: 0;
  gap: 40px;
  padding-left: 40px;
  white-space: nowrap;
  animation: ticker-scroll 90s linear infinite;
  will-change: transform;
}
.ticker:hover .ticker-track { animation-play-state: paused; }
.ticker-item { display: inline-flex; align-items: center; gap: 8px; color: var(--bg); }
.ticker-item a { color: var(--bg); text-decoration: underline; text-underline-offset: 3px; }
.ticker-item.ticker-clock strong { font-weight: 700; letter-spacing: 0.06em; }
@keyframes ticker-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce) {
  .ticker-track { animation: none; }
}

/* ─── topbar ─── */
.topbar {
  border-bottom: 1px solid var(--border);
  background: rgba(11, 13, 16, 0.92);
  backdrop-filter: blur(6px);
  position: sticky;
  top: 0;
  z-index: 50;
}
.topbar-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 22px 32px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  flex-wrap: wrap;
}
.topbar-right {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-left: auto;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--text);
}
.brand .mark {
  display: inline-block;
  width: 22px;
  height: 22px;
  position: relative;
}
.brand .mark::before {
  /* upward delta = climb */
  content: "";
  position: absolute; inset: 0;
  background: var(--accent);
  clip-path: polygon(50% 5%, 100% 95%, 50% 70%, 0% 95%);
}
.brand small {
  color: var(--text-mute);
  font-weight: 400;
  letter-spacing: 0.08em;
}

/* ─── tabs ─── */
.tabs {
  display: flex;
  gap: 0;
  list-style: none;
  margin: 0;
  padding: 0;
}
.tabs a {
  display: inline-block;
  padding: 8px 16px;
  color: var(--text-dim);
  border-bottom: 2px solid transparent;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-size: 12px;
}
.tabs a:hover { color: var(--text); text-decoration: none; }
.tabs a.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ─── topic filter pills ─── */
.topics-bar {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 14px 24px 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.topic-pill {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 6px 12px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-dim);
  cursor: pointer;
  border-radius: 999px;
  transition: color .15s, border-color .15s, background .15s;
}
.topic-pill:hover { color: var(--accent); border-color: var(--accent); }
.topic-pill.active {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}
.segment.hidden { display: none; }

/* ─── runway stripe ─── */
.stripe {
  height: 2px;
  background: repeating-linear-gradient(
    90deg,
    var(--accent) 0 24px,
    transparent 24px 40px
  );
  opacity: 0.55;
}

/* ─── layout ─── */
.shell {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 32px 24px 80px;
  display: grid;
  grid-template-columns: 1fr 240px;
  gap: 40px;
}
@media (max-width: 880px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar { order: 2; }
}

main { min-width: 0; }

/* ─── header block ─── */
.head {
  border: 1px solid var(--border);
  background: var(--bg-elev);
  border-radius: var(--radius);
  padding: 22px 24px;
  margin-bottom: 28px;
  position: relative;
  overflow: hidden;
}
.head::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.6;
}
.head h1 {
  margin: 0 0 6px;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.02em;
}
.head .meta {
  color: var(--text-mute);
  font-size: 12px;
  letter-spacing: 0.05em;
}
.head .meta span + span::before { content: " · "; color: var(--border); }
.head .headline {
  margin-top: 14px;
  padding: 12px 14px;
  border-left: 2px solid var(--accent);
  background: rgba(255, 184, 77, 0.05);
  color: var(--text);
  font-size: 15px;
}
.head .tldr {
  margin-top: 14px;
  color: var(--text-dim);
  font-size: 13.5px;
}

/* ─── action buttons ─── */
.actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 18px;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}
.btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.btn.copied {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(255, 184, 77, 0.08);
}
.btn .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--text-mute);
  transition: background 0.15s;
}
.btn:hover .dot { background: var(--accent); }

/* ─── segment block ─── */
.segment {
  margin: 32px 0 0;
}
.segment h2 {
  display: flex; align-items: center; gap: 12px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin: 0 0 14px;
  padding-bottom: 8px;
  border-bottom: 1px dashed var(--border);
}
.segment h2 .seg-code {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 2px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  color: var(--text);
  letter-spacing: 0.1em;
}
.segment.code-GA h2 .seg-code { color: var(--seg-ga); border-color: var(--seg-ga); }
.segment.code-BA h2 .seg-code { color: var(--seg-ba); border-color: var(--seg-ba); }
.segment.code-CA h2 .seg-code { color: var(--seg-ca); border-color: var(--seg-ca); }
.segment.code-MA h2 .seg-code { color: var(--seg-ma); border-color: var(--seg-ma); }
.segment.code-EDU h2 .seg-code { color: var(--seg-edu); border-color: var(--seg-edu); }
.segment.code-XS h2 .seg-code { color: var(--accent); border-color: var(--accent); }
.segment .empty {
  color: var(--text-mute);
  font-style: italic;
  padding-left: 4px;
}

/* ─── item ─── */
.item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  margin-bottom: 10px;
  background: var(--bg-elev);
  display: flex;
  gap: 12px;
}
.item .urg {
  flex: 0 0 auto;
  width: 4px;
  border-radius: 2px;
  background: var(--text-mute);
}
.item.high .urg { background: var(--u-high); box-shadow: 0 0 8px rgba(255, 107, 107, 0.4); }
.item.medium .urg { background: var(--u-med); }
.item.low .urg { background: var(--u-low); }

.item .body { flex: 1; min-width: 0; }
.item .title {
  font-size: 14.5px;
  font-weight: 600;
  margin: 0 0 4px;
}
.item .title a { color: var(--text); }
.item .title a:hover { color: var(--accent); }

.item .row {
  font-size: 11.5px;
  color: var(--text-mute);
  letter-spacing: 0.04em;
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 6px;
}
.item .row .sep { color: var(--border); }

.item .why {
  color: var(--text-dim);
  font-size: 13px;
  margin: 6px 0 0;
}

.tag {
  display: inline-block;
  padding: 1px 7px;
  border: 1px solid var(--border);
  border-radius: 2px;
  font-size: 10.5px;
  color: var(--text-dim);
  letter-spacing: 0.04em;
}
.urg-tag {
  font-size: 10.5px;
  padding: 2px 7px;
  border-radius: 2px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 600;
}
.urg-tag.high   { background: rgba(255,107,107,0.12); color: var(--u-high); border: 1px solid rgba(255,107,107,0.4); }
.urg-tag.medium { background: rgba(255,184,77,0.10); color: var(--u-med); border: 1px solid rgba(255,184,77,0.4); }
.urg-tag.low    { background: rgba(106,163,255,0.10); color: var(--u-low); border: 1px solid rgba(106,163,255,0.4); }

/* ─── sidebar ─── */
.sidebar {
  border-left: 1px solid var(--border);
  padding-left: 24px;
}
@media (max-width: 880px) {
  .sidebar { border-left: none; padding-left: 0; border-top: 1px solid var(--border); padding-top: 24px; margin-top: 16px; }
}
.sidebar h3 {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-mute);
  margin: 0 0 12px;
}
.sidebar ul { list-style: none; padding: 0; margin: 0; }
.sidebar li { margin: 0 0 4px; font-size: 12.5px; }
.sidebar li a {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  padding: 4px 0;
  color: var(--text-dim);
  border-bottom: 1px dotted var(--border-soft);
}
.sidebar li a:hover { color: var(--accent); text-decoration: none; }
.sidebar li .h {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text-mute);
  font-size: 11.5px;
}

/* ─── raw table ─── */
.raw-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12.5px;
}
.raw-table th, .raw-table td {
  text-align: left;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border-soft);
  vertical-align: top;
}
.raw-table th {
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-mute);
  font-weight: 600;
  border-bottom: 1px solid var(--border);
}
.raw-table tr:hover td { background: var(--bg-soft); }
.raw-table .kind {
  display: inline-block;
  font-size: 10px;
  padding: 1px 6px;
  border-radius: 2px;
  border: 1px solid var(--border);
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.raw-table .kind.diff { color: var(--accent); border-color: var(--accent-dim); }
.raw-table .src { color: var(--text-mute); white-space: nowrap; }
.raw-table .when { color: var(--text-mute); white-space: nowrap; font-variant-numeric: tabular-nums; }

/* ─── footer ─── */
.foot {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 24px;
  color: var(--text-mute);
  font-size: 11px;
  letter-spacing: 0.06em;
  border-top: 1px solid var(--border-soft);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

/* ─── empty state / tools page ─── */
.placeholder {
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: 40px;
  text-align: center;
  color: var(--text-mute);
}
.placeholder h2 { color: var(--text); margin-top: 0; letter-spacing: 0.05em; }
.placeholder code {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  padding: 2px 6px;
  border-radius: 2px;
  color: var(--accent);
}

/* ─── theme toggle button ─── */
.theme-toggle {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  line-height: 1;
  transition: color .15s, border-color .15s;
  margin-left: 8px;
}
.theme-toggle:hover { color: var(--accent); border-color: var(--accent); }

.item.hidden { display: none; }

/* ─── empty-segment fallback ─── */
.segment .fallback-note {
  color: var(--text-mute);
  font-size: 12.5px;
  font-style: italic;
  margin: 0 0 12px;
  padding: 6px 10px;
  border-left: 2px solid var(--border);
  background: rgba(255, 184, 77, 0.05);
}
.segment .fallback-bucket {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-mute);
  margin: 18px 0 4px;
  padding-bottom: 4px;
  border-bottom: 1px dotted var(--border);
}
.segment .fallback-item .urg-tag.low {
  background: rgba(255, 184, 77, 0.10);
  color: var(--accent);
  border-color: rgba(255, 184, 77, 0.4);
}

/* ─── dark / light variants ─── */
html.dark { /* default tokens already match a dark instrument-panel theme */ }
html:not(.dark) {
  --bg:        #f3ecdb;
  --bg-elev:   #ebe2cb;
  --bg-soft:   #efe7d2;
  --border:    #c9bd9c;
  --border-soft: #ddd2b3;
  --text:      #2a2418;
  --text-dim:  #5b513f;
  --text-mute: #8a7e63;
  --link:      #1c3f6b;
  --link-hover: #2d5a96;
}

/* hide the textareas used as clipboard sources */
.copy-src { position: absolute; left: -9999px; top: -9999px; }