/* tier-drift — dark theme, vanilla CSS, no framework */

:root {
  --bg: #0e0f13;
  --bg-elev: #16181d;
  --bg-elev-2: #1d2027;
  --bg-row-alt: #14161b;
  --fg: #e7e9ee;
  --fg-dim: #9aa0ab;
  --fg-mut: #6e7380;
  --border: #2a2e38;
  --accent: #ff8a5b;
  --accent-dim: #b35a35;
  --good: #3aaa6a;
  --warn: #c9a23c;
  --bad: #d05a4f;
  --info: #6da4ff;
  --pill-bg: #1f232b;
  --link: #ffae87;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--fg); }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 14px;
  line-height: 1.45;
  min-height: 100vh;
}

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

button { font-family: inherit; }

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 28px 14px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, #14161b 0%, #0e0f13 100%);
}
.brand { display: flex; gap: 12px; align-items: center; }
.brand h1 {
  margin: 0;
  font-size: 22px;
  letter-spacing: -0.02em;
  color: var(--fg);
}
.brand .tagline {
  margin: 2px 0 0;
  color: var(--fg-dim);
  font-size: 12.5px;
}

.meta { display: flex; align-items: center; gap: 8px; }
.pill {
  background: var(--pill-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 4px 10px;
  font-size: 12px;
  color: var(--fg-dim);
}
.pill.subtle { color: var(--fg-mut); }
.btn {
  background: var(--accent);
  color: #1a1208;
  border: none;
  border-radius: 6px;
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease;
}
.btn:hover { background: var(--accent-dim); color: #fff; }
.btn:disabled { opacity: 0.6; cursor: progress; }

.tabs {
  display: flex;
  gap: 4px;
  padding: 12px 28px 0;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}
.tab {
  background: transparent;
  color: var(--fg-dim);
  border: 1px solid transparent;
  border-bottom: none;
  border-radius: 6px 6px 0 0;
  padding: 7px 16px;
  font-size: 13px;
  cursor: pointer;
}
.tab:hover { color: var(--fg); }
.tab.active {
  background: var(--bg-elev);
  border-color: var(--border);
  color: var(--fg);
  position: relative;
  z-index: 1;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  padding: 14px 28px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}
.filters label {
  font-size: 12px;
  color: var(--fg-dim);
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.filters select {
  background: var(--bg-elev-2);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 5px 8px;
  font-size: 13px;
}
.filters .count {
  margin-left: auto;
  color: var(--fg-mut);
  font-size: 12.5px;
}

main { padding: 18px 28px 50px; }

.tab-pane { display: none; }
.tab-pane.active { display: block; }

.table-wrap {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}
table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
table.data th,
table.data td {
  text-align: left;
  padding: 9px 14px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
  vertical-align: top;
}
table.data th {
  background: var(--bg-elev-2);
  color: var(--fg-dim);
  font-weight: 500;
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  position: sticky;
  top: 0;
  z-index: 1;
}
table.data tr:last-child td { border-bottom: none; }
table.data tr:nth-child(even) td { background: var(--bg-row-alt); }
table.data tr.click:hover td { background: #1c1f27; cursor: pointer; }

.col-when { width: 150px; color: var(--fg-dim); font-variant-numeric: tabular-nums; }
.col-prov { width: 145px; }
.col-kind { width: 130px; color: var(--fg-dim); }
.col-cat { width: 110px; }
.col-sev { width: 80px; }
.col-mag { width: 60px; text-align: right; color: var(--fg-dim); font-variant-numeric: tabular-nums; }
.col-sum { white-space: normal; max-width: 520px; color: var(--fg); }
.col-act { width: 60px; }
.num { text-align: right; font-variant-numeric: tabular-nums; }

.badge {
  display: inline-block;
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 10px;
  font-weight: 600;
}
.sev-major { background: rgba(208,90,79,0.18); color: #f08778; border: 1px solid rgba(208,90,79,0.5); }
.sev-minor { background: rgba(201,162,60,0.16); color: #e6c068; border: 1px solid rgba(201,162,60,0.45); }
.sev-cosmetic { background: rgba(110,115,128,0.16); color: var(--fg-dim); border: 1px solid var(--border); }

.cat-price { color: #ffb070; }
.cat-quota { color: #a3d5ff; }
.cat-model-access { color: #d0b4ff; }
.cat-rate-limit { color: #ffd07a; }
.cat-wording { color: var(--fg-dim); }

.empty, .note {
  color: var(--fg-mut);
  font-size: 13px;
  margin: 18px 0;
  padding: 18px;
  background: var(--bg-elev);
  border: 1px dashed var(--border);
  border-radius: 8px;
}
.note { font-size: 12px; padding: 10px 14px; }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px;
}
.card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 16px 16px;
  position: relative;
  overflow: hidden;
}
.card .accent-bar {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 3px;
  background: var(--accent);
}
.card h3 {
  margin: 0 0 4px;
  font-size: 15px;
  color: var(--fg);
}
.card .prov {
  color: var(--fg-dim);
  font-size: 12px;
  margin-bottom: 10px;
}
.card .row {
  display: flex;
  justify-content: space-between;
  font-size: 12.5px;
  padding: 4px 0;
}
.card .row .k { color: var(--fg-dim); }
.card .row .v { color: var(--fg); font-variant-numeric: tabular-nums; }
.card .quota {
  margin-top: 8px;
  padding: 8px 10px;
  background: var(--bg-elev-2);
  border-radius: 6px;
  font-size: 12px;
  color: var(--fg-dim);
  line-height: 1.4;
}
.card .stability-bar {
  margin-top: 12px;
  height: 8px;
  background: var(--bg-elev-2);
  border-radius: 4px;
  overflow: hidden;
  position: relative;
}
.card .stability-bar .fill {
  height: 100%;
  background: linear-gradient(90deg, var(--bad), var(--warn), var(--good));
}
.card .footer-row {
  margin-top: 10px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 11.5px;
  color: var(--fg-mut);
}
.card .footer-row a { font-size: 12px; }

.provider-picker {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}
.provider-picker .chip {
  border: 1px solid var(--border);
  background: var(--bg-elev);
  color: var(--fg-dim);
  padding: 6px 12px;
  border-radius: 14px;
  font-size: 12.5px;
  cursor: pointer;
}
.provider-picker .chip.active {
  background: var(--accent);
  color: #1a1208;
  border-color: var(--accent);
}

.provider-detail h2 {
  font-size: 18px;
  margin: 6px 0 2px;
}
.provider-detail .sub { color: var(--fg-dim); font-size: 12.5px; margin-bottom: 14px; }
.provider-detail .panel {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 16px;
  margin-bottom: 12px;
}
.provider-detail .panel h4 {
  margin: 0 0 8px;
  font-size: 13px;
  color: var(--fg-dim);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.provider-detail .url-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
  font-size: 12.5px;
}
.provider-detail .url-row:last-child { border-bottom: none; }

.bar-cell {
  display: inline-block;
  width: 120px;
  height: 8px;
  background: var(--bg-elev-2);
  border-radius: 4px;
  position: relative;
  vertical-align: middle;
}
.bar-cell .fill {
  position: absolute;
  left: 0; top: 0; height: 100%;
  background: linear-gradient(90deg, var(--bad), var(--warn), var(--good));
  border-radius: 4px;
}

.foot {
  display: flex;
  justify-content: space-between;
  padding: 14px 28px;
  border-top: 1px solid var(--border);
  color: var(--fg-mut);
  font-size: 12px;
  background: var(--bg-elev);
}

.modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
  padding: 24px;
}
.modal-card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 10px;
  max-width: 880px;
  width: 100%;
  max-height: calc(100vh - 48px);
  overflow: auto;
  padding: 24px 28px;
  position: relative;
}
.modal-close {
  position: absolute;
  top: 10px; right: 12px;
  background: transparent;
  color: var(--fg-dim);
  border: none;
  font-size: 24px;
  cursor: pointer;
  line-height: 1;
}
.modal-close:hover { color: var(--fg); }
.modal h2 { font-size: 16px; margin: 0 0 6px; color: var(--fg); }
.modal .modal-meta {
  font-size: 12px;
  color: var(--fg-dim);
  margin-bottom: 16px;
}
.modal .diff {
  background: var(--bg-elev-2);
  border-radius: 6px;
  border: 1px solid var(--border);
  padding: 12px 14px;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 12.5px;
  line-height: 1.5;
  max-height: 60vh;
  overflow: auto;
}
.modal .diff .add { color: #84d39a; }
.modal .diff .del { color: #ee8d82; text-decoration: line-through; opacity: 0.85; }
.modal .diff .line { padding: 2px 0; white-space: pre-wrap; word-break: break-word; }

.links-row {
  display: flex;
  gap: 12px;
  margin-top: 12px;
  font-size: 12.5px;
}

@media (max-width: 720px) {
  .topbar { flex-wrap: wrap; gap: 10px; }
  .filters { padding: 10px 14px; }
  main { padding: 12px 14px 40px; }
  table.data th, table.data td { padding: 7px 8px; font-size: 12px; }
  .col-sum { max-width: 220px; }
}