/*
 * RIBITS Credit Ledger — editorial dark theme
 * Palette: warm slate background, cream text, amber accent (mitigation/wetland feel)
 * Typography: Instrument Serif display, IBM Plex Sans body, JetBrains Mono numbers
 */

:root {
  --bg:           #14130f;
  --bg-elev:     #1c1b16;
  --bg-elev-2:   #232118;
  --line:        #2e2b22;
  --line-soft:   #25231c;
  --ink:         #e9e3d3;
  --ink-soft:    #b9b1a0;
  --ink-dim:     #75705f;
  --accent:      #d8a24c;     /* warm amber */
  --accent-deep: #a87827;
  --good:        #8fa66b;     /* moss */
  --bad:         #c46b5a;     /* terracotta */
  --neutral:     #6e8499;
  --shadow:      0 1px 0 rgba(255,255,255,0.02), 0 24px 48px -24px rgba(0,0,0,0.6);
  --rad:         6px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: 'IBM Plex Sans', system-ui, sans-serif;
  font-size: 14.5px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  position: relative;
}

/* Subtle film-grain overlay */
.grain {
  position: fixed; inset: 0; pointer-events: none; z-index: 1;
  opacity: 0.06;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='180' height='180'><filter id='n'><feTurbulence baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--ink); }

/* ----- Top bar ----- */
.topbar {
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255,255,255,0.012), rgba(0,0,0,0));
  position: sticky; top: 0; z-index: 10;
  backdrop-filter: blur(8px);
}
.topbar-inner {
  max-width: 1400px; margin: 0 auto;
  padding: 14px 28px;
  display: flex; align-items: center; gap: 32px;
}
.brand {
  display: flex; align-items: center; gap: 12px;
  color: var(--ink); font-family: 'Instrument Serif', serif;
  font-size: 22px; letter-spacing: 0.01em;
}
.brand-mark {
  font-family: 'JetBrains Mono', monospace;
  color: var(--accent);
  font-size: 14px;
  letter-spacing: -2px;
}
.brand-text-light { color: var(--ink-soft); font-style: italic; }

.nav { display: flex; gap: 4px; flex: 1; }
.nav-link {
  padding: 7px 14px; color: var(--ink-soft);
  font-size: 13.5px; letter-spacing: 0.01em;
  border: 1px solid transparent; border-radius: 4px;
  transition: all 120ms ease;
}
.nav-link:hover { color: var(--ink); background: var(--bg-elev); }
.nav-link.is-active {
  color: var(--ink);
  border-color: var(--line);
  background: var(--bg-elev);
}

.topbar-action { display: flex; align-items: center; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 16px;
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 13px; font-weight: 500;
  letter-spacing: 0.02em;
  border-radius: 4px;
  cursor: pointer;
  transition: all 120ms ease;
  border: 1px solid var(--line);
  background: var(--bg-elev);
  color: var(--ink);
}
.btn:hover { background: var(--bg-elev-2); border-color: var(--accent-deep); }
.btn-primary {
  background: var(--accent);
  color: #1d1810; border-color: var(--accent);
  font-weight: 600;
}
.btn-primary:hover { background: #e7b057; border-color: #e7b057; }
.btn .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: #1d1810;
  box-shadow: 0 0 0 2px rgba(29,24,16,0.3);
}

.btn-ghost {
  background: transparent; border: 1px solid var(--line);
  color: var(--ink-soft);
}
.btn-ghost:hover { color: var(--ink); border-color: var(--ink-dim); }

/* ----- Page layout ----- */
.page {
  max-width: 1400px; margin: 0 auto;
  padding: 32px 28px 80px;
  position: relative; z-index: 2;
}

.page-header { margin-bottom: 32px; display: flex; align-items: baseline; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.page-title {
  font-family: 'Instrument Serif', serif;
  font-size: 44px; font-weight: 400;
  margin: 0 0 6px 0; letter-spacing: -0.01em;
  color: var(--ink);
}
.page-subtitle {
  font-size: 13.5px; color: var(--ink-soft);
  margin: 0; max-width: 720px;
}
.page-eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px; letter-spacing: 0.16em;
  color: var(--accent); text-transform: uppercase;
  margin-bottom: 8px;
}
.page-meta {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11.5px; color: var(--ink-dim);
  letter-spacing: 0.04em; text-align: right;
}

/* ----- Stat cards (KPI strip) ----- */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--rad);
  overflow: hidden;
  margin-bottom: 32px;
  box-shadow: var(--shadow);
}
.stat {
  background: var(--bg-elev);
  padding: 22px 24px;
  display: flex; flex-direction: column; gap: 6px;
  position: relative;
}
.stat-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px; letter-spacing: 0.14em;
  color: var(--ink-dim); text-transform: uppercase;
}
.stat-value {
  font-family: 'Instrument Serif', serif;
  font-size: 38px; font-weight: 400; color: var(--ink);
  line-height: 1; letter-spacing: -0.01em;
}
.stat-meta {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11.5px; color: var(--ink-soft);
}
.stat-accent { color: var(--accent); }

/* ----- Generic panel ----- */
.panel {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--rad);
  padding: 24px 26px;
  box-shadow: var(--shadow);
  margin-bottom: 24px;
}
.panel-head {
  display: flex; align-items: baseline; justify-content: space-between;
  margin-bottom: 18px; padding-bottom: 14px;
  border-bottom: 1px solid var(--line-soft);
}
.panel-title {
  font-family: 'Instrument Serif', serif;
  font-size: 22px; font-weight: 400; color: var(--ink); margin: 0;
}
.panel-eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px; letter-spacing: 0.14em;
  color: var(--ink-dim); text-transform: uppercase;
}

.grid-2 { display: grid; grid-template-columns: 2fr 1fr; gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

/* ----- Tables ----- */
.tbl {
  width: 100%; border-collapse: collapse; font-size: 13px;
}
.tbl th, .tbl td {
  text-align: left; padding: 10px 12px;
  border-bottom: 1px solid var(--line-soft);
}
.tbl th {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px; letter-spacing: 0.12em;
  color: var(--ink-dim); text-transform: uppercase;
  font-weight: 500;
}
.tbl td { color: var(--ink); }
.tbl td.num, .tbl th.num { font-family: 'JetBrains Mono', monospace; text-align: right; font-variant-numeric: tabular-nums; }
.tbl tbody tr:hover { background: rgba(216, 162, 76, 0.04); }
.tbl tbody tr:last-child td { border-bottom: 0; }

.mono { font-family: 'JetBrains Mono', monospace; font-variant-numeric: tabular-nums; }
.dim { color: var(--ink-soft); }
.dimmer { color: var(--ink-dim); }
.tag {
  display: inline-block; padding: 2px 8px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px; letter-spacing: 0.06em;
  border: 1px solid var(--line); border-radius: 3px;
  color: var(--ink-soft); background: var(--bg);
}
.tag-wdr { color: var(--bad); border-color: rgba(196,107,90,0.3); background: rgba(196,107,90,0.06); }
.tag-rel { color: var(--good); border-color: rgba(143,166,107,0.3); background: rgba(143,166,107,0.06); }
.tag-init { color: var(--neutral); border-color: rgba(110,132,153,0.3); }
.tag-pwdr { color: var(--bad); border-color: rgba(196,107,90,0.3); background: rgba(196,107,90,0.06); opacity: 0.7; }
.tag-prel { color: var(--good); border-color: rgba(143,166,107,0.3); background: rgba(143,166,107,0.06); opacity: 0.7; }

/* ----- Filters bar ----- */
.filters {
  display: flex; gap: 10px; flex-wrap: wrap;
  align-items: center; margin-bottom: 18px;
  padding: 14px 18px;
  background: var(--bg-elev); border: 1px solid var(--line); border-radius: var(--rad);
}
.filters input, .filters select {
  background: var(--bg); color: var(--ink);
  border: 1px solid var(--line);
  padding: 7px 10px; font-family: 'IBM Plex Sans'; font-size: 13px;
  border-radius: 4px;
}
.filters input:focus, .filters select:focus { outline: 1px solid var(--accent); border-color: var(--accent); }
.filters input { min-width: 220px; }

.pagination {
  display: flex; gap: 6px; justify-content: center;
  margin-top: 24px; font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
}
.pagination a, .pagination span {
  padding: 6px 12px; border: 1px solid var(--line); border-radius: 3px;
  color: var(--ink-soft);
}
.pagination .current { background: var(--accent); color: #1d1810; border-color: var(--accent); }

/* ----- Flash messages ----- */
.flash-stack {
  max-width: 1400px; margin: 16px auto 0; padding: 0 28px;
  display: flex; flex-direction: column; gap: 8px;
}
.flash {
  padding: 12px 18px; border-radius: var(--rad);
  font-size: 13px; border: 1px solid var(--line);
  background: var(--bg-elev);
}
.flash-success { border-color: rgba(143,166,107,0.4); color: var(--good); }
.flash-error { border-color: rgba(196,107,90,0.4); color: var(--bad); }

/* ----- Footer ----- */
.footer {
  border-top: 1px solid var(--line);
  padding: 24px 28px; margin-top: 80px;
}
.footer-inner {
  max-width: 1400px; margin: 0 auto;
  display: flex; justify-content: space-between;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px; letter-spacing: 0.12em;
  color: var(--ink-dim); text-transform: uppercase;
}

/* ----- Chat (NL query) ----- */
.chat-shell {
  display: grid; grid-template-columns: 280px 1fr; gap: 24px;
}
.chat-sidebar { display: flex; flex-direction: column; gap: 24px; }
.suggestion {
  display: block; width: 100%; text-align: left;
  background: var(--bg-elev); border: 1px solid var(--line);
  color: var(--ink-soft); padding: 10px 14px;
  font-size: 12.5px; line-height: 1.4; cursor: pointer;
  border-radius: var(--rad); margin-bottom: 6px;
  transition: all 100ms ease; font-family: inherit;
}
.suggestion:hover { color: var(--ink); border-color: var(--accent-deep); }

.chat-main {
  background: var(--bg-elev); border: 1px solid var(--line);
  border-radius: var(--rad); display: flex; flex-direction: column;
  min-height: 580px;
}
.chat-stream { flex: 1; padding: 28px; overflow-y: auto; min-height: 420px; }
.chat-input-row {
  border-top: 1px solid var(--line); padding: 16px 20px;
  display: flex; gap: 12px;
}
.chat-input-row textarea {
  flex: 1; resize: none;
  background: var(--bg); color: var(--ink);
  border: 1px solid var(--line); border-radius: 4px;
  padding: 10px 14px; font-family: inherit; font-size: 14px;
  min-height: 44px;
}
.chat-input-row textarea:focus { outline: 1px solid var(--accent); border-color: var(--accent); }

.qa { margin-bottom: 32px; }
.qa-question {
  font-family: 'Instrument Serif', serif;
  font-size: 22px; font-style: italic;
  color: var(--ink); margin-bottom: 14px;
  padding-left: 14px; border-left: 2px solid var(--accent);
}
.qa-answer {
  color: var(--ink); font-size: 14.5px;
  margin-bottom: 14px; line-height: 1.6;
}
.qa-meta {
  display: flex; gap: 16px; flex-wrap: wrap;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px; color: var(--ink-dim);
  letter-spacing: 0.04em; margin-bottom: 12px;
  text-transform: uppercase;
}
.qa-sql {
  background: #0e0d0a; border: 1px solid var(--line);
  border-radius: 4px; padding: 12px 14px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px; color: #c9b88a;
  white-space: pre-wrap; overflow-x: auto;
  margin-bottom: 12px;
}
.qa-rows {
  border: 1px solid var(--line); border-radius: 4px;
  overflow: hidden; max-height: 400px; overflow-y: auto;
}
.qa-rows table { width: 100%; border-collapse: collapse; font-size: 12.5px; }
.qa-rows th, .qa-rows td {
  padding: 7px 10px; text-align: left;
  border-bottom: 1px solid var(--line-soft);
}
.qa-rows th {
  font-family: 'JetBrains Mono', monospace; font-size: 10.5px;
  text-transform: uppercase; color: var(--ink-dim);
  letter-spacing: 0.1em; background: var(--bg);
  position: sticky; top: 0;
}
.qa-error {
  background: rgba(196,107,90,0.08); border: 1px solid rgba(196,107,90,0.3);
  color: var(--bad); padding: 12px 14px; border-radius: 4px;
}

.thinking {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: 'JetBrains Mono', monospace; font-size: 12px;
  color: var(--ink-soft); letter-spacing: 0.06em;
}
.thinking::before {
  content: ""; width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent); animation: pulse 1s infinite ease-in-out;
}
@keyframes pulse { 0%,100% { opacity: 0.3; } 50% { opacity: 1; } }

/* ----- Bar chart (SVG) ----- */
.chart-wrap { position: relative; width: 100%; }
.chart-svg { width: 100%; height: auto; display: block; }
.chart-bar-rel { fill: var(--good); }
.chart-bar-wdr { fill: var(--bad); }
.chart-axis { stroke: var(--line); stroke-width: 1; }
.chart-tick {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px; fill: var(--ink-dim);
}
.chart-legend {
  display: flex; gap: 18px; justify-content: flex-end;
  font-family: 'JetBrains Mono', monospace; font-size: 11px;
  color: var(--ink-soft); margin-bottom: 8px;
}
.chart-legend .dot-rel { display: inline-block; width: 10px; height: 10px; background: var(--good); margin-right: 6px; vertical-align: middle; }
.chart-legend .dot-wdr { display: inline-block; width: 10px; height: 10px; background: var(--bad); margin-right: 6px; vertical-align: middle; }

/* ----- Decorative quote / divider ----- */
.divider-quote {
  font-family: 'Instrument Serif', serif;
  font-style: italic; font-size: 18px;
  color: var(--ink-soft);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 24px 0; margin: 32px 0;
  text-align: center;
}

/* ----- Responsive ----- */
@media (max-width: 1100px) {
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .chat-shell { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .topbar-inner { gap: 12px; flex-wrap: wrap; }
  .nav { order: 3; flex-basis: 100%; overflow-x: auto; }
  .stat-grid { grid-template-columns: 1fr; }
  .page-title { font-size: 32px; }
}