/* ---------------------------------------------------------------------
   Design tokens
   A quiet, technical "deal-screening" tool: dense tables, aligned figures,
   restrained colour used only to carry meaning (good/caution/bad), not to
   decorate. System font stacks throughout -- no external font requests,
   since this is meant to sit behind a locked-down homelab proxy.
--------------------------------------------------------------------- */
:root {
  --bg: #0f1115;
  --panel: #171a21;
  --panel-raised: #1d212a;
  --border: #262b36;
  --border-soft: #1e222b;
  --ink: #e7e5de;
  --muted: #8b93a3;
  --faint: #565d6b;

  --teal: #4fb8a6;
  --teal-ink: #0f1115;
  --amber: #d8a44c;
  --red: #e1595f;

  --font-display: -apple-system, "Segoe UI", ui-sans-serif, Arial, sans-serif;
  --font-body: -apple-system, "Segoe UI", ui-sans-serif, system-ui, sans-serif;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Mono", "JetBrains Mono", Consolas, monospace;

  --radius: 8px;
  --radius-sm: 5px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px 64px;
}

/* ---------------------------------------------------------------------
   Top bar
--------------------------------------------------------------------- */
.topbar {
  border-bottom: 1px solid var(--border);
  margin-bottom: 28px;
}
.topbar-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: baseline;
  gap: 20px;
}
.brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.01em;
  text-decoration: none;
  color: var(--ink);
}
.brand-mark {
  color: var(--teal);
}
.topbar-nav { display: flex; gap: 4px; margin-left: auto; }
.topbar-nav a {
  font-size: 13px;
  color: var(--muted);
  text-decoration: none;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
}
.topbar-nav a:hover { color: var(--ink); background: var(--panel); }

.eyebrow {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 6px;
}

h1 {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.015em;
  margin: 0 0 4px;
}
h2 {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.005em;
  margin: 0;
}
.subtitle { color: var(--muted); font-size: 14px; margin: 0 0 28px; }

/* ---------------------------------------------------------------------
   Buttons
--------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-body);
  font-size: 13.5px;
  font-weight: 600;
  padding: 9px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--ink);
  cursor: pointer;
  text-decoration: none;
  transition: background 0.12s ease, border-color 0.12s ease;
}
.btn:hover { background: var(--panel-raised); border-color: #333a48; }
.btn-primary { background: var(--teal); border-color: var(--teal); color: var(--teal-ink); }
.btn-primary:hover { background: #5fc9b7; border-color: #5fc9b7; }
.btn-danger { color: var(--red); }
.btn-danger:hover { border-color: var(--red); }
.btn-ghost { background: transparent; border-color: transparent; color: var(--muted); }
.btn-ghost:hover { background: var(--panel); color: var(--ink); }
.btn-sm { padding: 5px 10px; font-size: 12.5px; }

/* ---------------------------------------------------------------------
   Dashboard table
--------------------------------------------------------------------- */
.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
  gap: 12px;
  flex-wrap: wrap;
}
.sort-links { display: flex; gap: 2px; font-size: 12.5px; }
.sort-links a {
  color: var(--muted);
  text-decoration: none;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
}
.sort-links a.active { color: var(--teal-ink); background: var(--teal); font-weight: 700; }
.sort-links a:not(.active):hover { background: var(--panel); color: var(--ink); }

table.deals {
  width: 100%;
  border-collapse: collapse;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
table.deals th {
  text-align: left;
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--faint);
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
table.deals td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border-soft);
  vertical-align: middle;
  font-size: 13.5px;
}
table.deals tr:last-child td { border-bottom: none; }
table.deals tbody tr { transition: background 0.1s ease; }
table.deals tbody tr:hover { background: var(--panel-raised); }
table.deals .num { font-family: var(--font-mono); text-align: right; font-variant-numeric: tabular-nums; }
table.deals a.row-link { text-decoration: none; color: var(--ink); font-weight: 600; }
table.deals a.row-link:hover { color: var(--teal); }
.scenario-label { color: var(--muted); font-size: 12px; display: block; margin-top: 1px; }

.roi-cell { display: flex; align-items: center; gap: 8px; justify-content: flex-end; }
.roi-figure { font-family: var(--font-mono); font-variant-numeric: tabular-nums; min-width: 52px; text-align: right; }
.heat-strip {
  width: 54px;
  height: 6px;
  border-radius: 3px;
  background: var(--border);
  overflow: hidden;
  flex-shrink: 0;
}
.heat-strip > span { display: block; height: 100%; border-radius: 3px; }

.pos { color: var(--teal); }
.neg { color: var(--red); }
.warn { color: var(--amber); }

input[type="checkbox"].compare-check { width: 15px; height: 15px; accent-color: var(--teal); }

.empty-state {
  text-align: center;
  padding: 64px 24px;
  color: var(--muted);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
}
.empty-state h2 { color: var(--ink); margin-bottom: 8px; }

/* ---------------------------------------------------------------------
   Compare bar (floating)
--------------------------------------------------------------------- */
.compare-bar {
  position: fixed;
  left: 50%;
  bottom: 20px;
  transform: translate(-50%, 0);
  background: var(--panel-raised);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 10px 10px 10px 18px;
  display: none;
  align-items: center;
  gap: 14px;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.45);
  z-index: 40;
}
.compare-bar.visible { display: flex; }
.compare-bar span { font-size: 13px; color: var(--muted); }

/* ---------------------------------------------------------------------
   Detail page — two-column layout
--------------------------------------------------------------------- */
.detail-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 20px;
  margin-bottom: 18px;
}
.postcode-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 2px 9px;
  margin-left: 8px;
}

.tabs { display: flex; gap: 4px; flex-wrap: wrap; margin-bottom: 18px; border-bottom: 1px solid var(--border); }
.tabs a {
  font-size: 13px;
  color: var(--muted);
  text-decoration: none;
  padding: 9px 14px;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}
.tabs a.active { color: var(--ink); border-bottom-color: var(--teal); font-weight: 600; }
.tabs a:hover:not(.active) { color: var(--ink); }
.tabs .add-tab { color: var(--faint); }

.detail-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 22px;
  align-items: start;
}
@media (max-width: 860px) {
  .detail-grid { grid-template-columns: 1fr; }
  .results-panel { position: static !important; }
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
}
.panel + .panel { margin-top: 16px; }

.field-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px 16px;
}
.field { display: flex; flex-direction: column; gap: 5px; }
.field.span-2 { grid-column: span 2; }
.field label {
  font-size: 12px;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
}
.field .hint { color: var(--faint); font-weight: 400; }
.field input[type="text"],
.field input[type="number"] {
  font-family: var(--font-mono);
  font-size: 13.5px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--ink);
  padding: 8px 10px;
  width: 100%;
}
.field input:focus {
  outline: 2px solid var(--teal);
  outline-offset: -1px;
  border-color: var(--teal);
}
.field-with-btn { display: flex; gap: 6px; }
.field-with-btn input { flex: 1; }
.checkbox-row { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--ink); }
.checkbox-row input { width: 15px; height: 15px; accent-color: var(--teal); }

.section-title { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 14px; }

/* Results (sticky sidebar) */
.results-panel { position: sticky; top: 20px; }
.result-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 7px 0;
  border-bottom: 1px solid var(--border-soft);
  font-size: 13px;
}
.result-row:last-child { border-bottom: none; }
.result-row .label { color: var(--muted); }
.result-row .value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  transition: background 0.4s ease;
  border-radius: 3px;
  padding: 1px 4px;
}
.result-row .value.flash { background: rgba(79, 184, 166, 0.28); }
.result-hero {
  text-align: center;
  padding: 6px 0 18px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 8px;
}
.result-hero .big {
  font-family: var(--font-mono);
  font-size: 34px;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.result-hero .big-label { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em; margin-top: 2px; }

.stress-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  margin-top: 12px;
  width: 100%;
}
.stress-badge.pass { background: rgba(79, 184, 166, 0.14); color: var(--teal); }
.stress-badge.fail { background: rgba(225, 89, 95, 0.14); color: var(--red); }
.stress-badge .dot { width: 7px; height: 7px; border-radius: 50%; background: currentColor; }

.form-actions { display: flex; gap: 10px; margin-top: 20px; }

.notes-field textarea {
  width: 100%;
  min-height: 70px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 13.5px;
  padding: 8px 10px;
  resize: vertical;
}

/* ---------------------------------------------------------------------
   Compare page
--------------------------------------------------------------------- */
table.compare-table { width: 100%; border-collapse: collapse; background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
table.compare-table th, table.compare-table td { padding: 11px 16px; border-bottom: 1px solid var(--border-soft); font-size: 13.5px; }
table.compare-table th:first-child, table.compare-table td:first-child { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0.04em; white-space: nowrap; }
table.compare-table td:not(:first-child) { font-family: var(--font-mono); text-align: right; font-variant-numeric: tabular-nums; }
table.compare-table th:not(:first-child) { text-align: right; }
table.compare-table tr:last-child td { border-bottom: none; }
table.compare-table tr.metric-row td:not(:first-child) { font-weight: 700; }

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}

@media (max-width: 720px) {
  .field-grid { grid-template-columns: 1fr; }
  .field.span-2 { grid-column: span 1; }
  table.deals thead { display: none; }
  table.deals, table.deals tbody, table.deals tr, table.deals td { display: block; width: 100%; }
  table.deals tr { border-bottom: 1px solid var(--border); padding: 10px 0; }
  table.deals td { border: none; padding: 4px 14px; }
  .roi-cell { justify-content: flex-start; }
}