/* Large PHEV Comparator
   Design direction: automotive editorial. Light default with a warm amber
   accent; optional dark theme via [data-theme="dark"] on <html>.
*/

:root {
  /* Light theme (default) — subtle cream */
  --bg: #f5efe1;
  --surface: #fbf7ec;
  --elev: #efe8d7;
  --border: #e0d8c3;
  --border-strong: #c4b995;
  --text: #2a2620;
  --muted: #6b6252;
  --brass: #a8752a;         /* deeper amber; AA on cream */
  --brass-soft: #a8752a1a;
  --cyan: #1a7a95;
  --green: #147a48;
  --green-soft: #147a4814;
  --red: #b03a3a;
  --shadow: 0 8px 30px rgba(60, 45, 25, 0.08);
  --bg-gradient-a: #f0e4c8;
  --bg-gradient-b: #ece2ce;

  --radius: 14px;
  --radius-sm: 8px;

  --font-sans: 'Inter', system-ui, sans-serif;
  --font-display: 'Space Grotesk', 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;

  color-scheme: light;
}

[data-theme="dark"] {
  --bg: #0b0f14;
  --surface: #131922;
  --elev: #1a222d;
  --border: #26313f;
  --border-strong: #38475a;
  --text: #e8ecf1;
  --muted: #93a0b0;
  --brass: #f2c14e;
  --brass-soft: #f2c14e22;
  --cyan: #7ad7f0;
  --green: #6ee7a3;
  --green-soft: #6ee7a322;
  --red: #ff8a8a;
  --shadow: 0 20px 60px rgba(0,0,0,0.45);
  --bg-gradient-a: #1b2a3d;
  --bg-gradient-b: #201a2a;

  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background:
    radial-gradient(1200px 600px at 80% -10%, var(--bg-gradient-a) 0%, transparent 60%),
    radial-gradient(900px 500px at -10% 20%, var(--bg-gradient-b) 0%, transparent 55%),
    var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.55;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  transition: background-color .3s, color .3s;
}
a { color: var(--brass); text-decoration: none; border-bottom: 1px solid transparent; transition: border-color .15s; }
a:hover { border-bottom-color: var(--brass); }

h1, h2, h3 { font-family: var(--font-display); font-weight: 600; letter-spacing: -0.01em; margin: 0; }
h1 { font-size: clamp(1.8rem, 3.4vw, 2.8rem); line-height: 1.1; }
h2 { font-size: 1.25rem; }
p { margin: 0; }
.muted { color: var(--muted); font-size: 0.9rem; }

/* ---------- Header ---------- */
.top {
  display: flex; justify-content: space-between; align-items: center;
  padding: 20px 32px;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(12px);
  position: sticky; top: 0; z-index: 20;
}
.brand { display: flex; align-items: center; gap: 12px; color: var(--brass); }
.brand-title { font-family: var(--font-display); font-weight: 600; font-size: 1rem; color: var(--text); letter-spacing: 0.02em; }
.brand-sub { font-size: 0.78rem; color: var(--muted); }
.topmeta { display: flex; gap: 8px; flex-wrap: wrap; }
.pill {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 0.75rem;
  color: var(--muted);
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}
.theme-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  width: 32px; height: 32px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  transition: border-color .15s, color .15s, background .15s, transform .1s;
  padding: 0;
}
.theme-toggle:hover { border-color: var(--brass); color: var(--brass); }
.theme-toggle:active { transform: scale(0.94); }
.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: block; }
[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

/* ---------- Layout ---------- */
.wrap { max-width: 1240px; margin: 0 auto; padding: 40px 32px 80px; display: flex; flex-direction: column; gap: 32px; }

/* ---------- Hero ---------- */
.hero { max-width: 780px; }
.lede { color: var(--muted); font-size: 1.02rem; margin-top: 12px; }

/* ---------- Panel ---------- */
.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
}
.panel-head {
  display: flex; justify-content: space-between; align-items: flex-start; gap: 20px;
  margin-bottom: 20px;
}
.panel-head h2 { margin-bottom: 4px; }

.ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 0.82rem;
  cursor: pointer;
  font-family: var(--font-sans);
  transition: all .15s;
}
.ghost:hover { color: var(--text); border-color: var(--brass); }

/* ---------- Sliders ---------- */
.sliders {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px 28px;
  margin-bottom: 24px;
}
.slider-row { display: flex; flex-direction: column; gap: 6px; }
.slider-row label {
  display: flex; justify-content: space-between; align-items: baseline;
  font-size: 0.85rem;
}
.slider-row .lbl-name { color: var(--text); font-weight: 500; }
.slider-row .lbl-value {
  font-family: var(--font-mono);
  color: var(--brass);
  font-size: 0.9rem;
  background: var(--brass-soft);
  border-radius: 4px;
  padding: 1px 8px;
  min-width: 32px;
  text-align: center;
}
.slider-row input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  height: 6px;
  background: linear-gradient(to right, var(--brass) var(--pct, 50%), var(--elev) var(--pct, 50%));
  border-radius: 999px;
  outline: none;
  cursor: pointer;
}
.slider-row input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px; height: 18px;
  background: var(--text);
  border: 2px solid var(--brass);
  border-radius: 50%;
  cursor: grab;
  transition: transform .1s;
}
.slider-row input[type="range"]::-webkit-slider-thumb:active { cursor: grabbing; transform: scale(1.12); }
.slider-row input[type="range"]::-moz-range-thumb {
  width: 18px; height: 18px;
  background: var(--text);
  border: 2px solid var(--brass);
  border-radius: 50%;
  cursor: grab;
}
.slider-hint { font-size: 0.72rem; color: var(--muted); }

/* ---------- Recommendation ---------- */
.recommendation {
  border-top: 1px dashed var(--border);
  padding-top: 22px;
  display: flex; flex-direction: column; gap: 16px;
}
.rec-headline { display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; }
.rec-label {
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-family: var(--font-mono);
}
.rec-car {
  font-family: var(--font-display);
  font-size: 1.6rem;
  color: var(--brass);
  font-weight: 600;
}
.rec-scores { display: grid; grid-template-columns: 1fr; gap: 10px; }
.score-row { display: grid; grid-template-columns: 28px 180px 1fr 50px; align-items: center; gap: 10px; padding: 3px 0; }
.score-row.top { padding: 6px 8px; margin: 2px -8px; border-radius: 8px; background: linear-gradient(90deg, var(--green-soft), transparent 60%); }
.score-rank { font-family: var(--font-mono); color: var(--muted); font-size: 0.8rem; text-align: center; }
.score-row.top .score-rank { color: var(--green); font-weight: 600; }
.score-name { font-size: 0.88rem; }
.score-track { background: var(--elev); border-radius: 999px; height: 7px; overflow: hidden; position: relative; }
.score-fill { height: 100%; border-radius: 999px; transition: width .5s cubic-bezier(.2,.7,.2,1); background: var(--brass); }
.score-fill.winner { background: linear-gradient(90deg, var(--green), var(--cyan)); }
.score-value { font-family: var(--font-mono); text-align: right; color: var(--muted); font-size: 0.85rem; }
@media (max-width: 620px) {
  .score-row { grid-template-columns: 22px 100px 1fr 42px; gap: 6px; }
  .score-name { font-size: 0.8rem; }
}

/* ---------- Cards ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 14px;
}
.car-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  display: flex; flex-direction: column; gap: 12px;
  position: relative;
  overflow: hidden;
  transition: opacity .3s, transform .15s;
  min-width: 0;
}
.car-card::before {
  content: '';
  position: absolute; inset: 0 0 auto 0; height: 3px;
  background: var(--accent-color, var(--brass));
}
.car-card.dimmed { opacity: 0.35; }
.car-card .card-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 8px; }
.card-title { min-width: 0; flex: 1; }
.car-name { font-family: var(--font-display); font-size: 1.05rem; font-weight: 600; line-height: 1.2; }
.car-tag { font-size: 0.66rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.12em; font-family: var(--font-mono); margin-top: 4px; }
.car-trim { font-size: 0.72rem; color: var(--text); opacity: 0.7; margin-top: 3px; }
.car-price { text-align: right; flex-shrink: 0; }
.price-value { font-family: var(--font-display); font-size: 1.15rem; font-weight: 600; color: var(--brass); white-space: nowrap; }
.price-label { font-size: 0.7rem; color: var(--muted); font-family: var(--font-mono); }
.stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  border-top: 1px solid var(--border);
  padding-top: 12px;
}
.stat { display: flex; flex-direction: column; gap: 1px; min-width: 0; }
.stat-label { font-size: 0.62rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.06em; }
.stat-value { font-family: var(--font-mono); font-size: 0.88rem; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.stat-value .u { color: var(--muted); font-size: 0.75em; margin-left: 2px; }
.win-badge {
  display: inline-block;
  font-size: 0.55rem;
  color: var(--green);
  background: var(--green-soft);
  border-radius: 3px;
  padding: 0 4px;
  margin-left: 3px;
  font-family: var(--font-mono);
  vertical-align: middle;
  letter-spacing: 0.02em;
}

/* ---------- Filters ---------- */
.filters {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px 24px;
}
.filter-row { display: flex; flex-direction: column; gap: 4px; }
.filter-row label { display: flex; justify-content: space-between; font-size: 0.82rem; }
.filter-row .fval { font-family: var(--font-mono); color: var(--cyan); font-size: 0.82rem; }
.filter-row input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  background: linear-gradient(to right, var(--cyan) var(--pct, 0%), var(--elev) var(--pct, 0%));
  border-radius: 999px;
}
.filter-row input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px; height: 14px;
  background: var(--text);
  border: 2px solid var(--cyan);
  border-radius: 50%;
  cursor: grab;
}
.filter-row input[type="range"]::-moz-range-thumb {
  width: 14px; height: 14px;
  background: var(--text);
  border: 2px solid var(--cyan);
  border-radius: 50%;
  cursor: grab;
}
.filter-row.select-row select {
  background: var(--elev);
  color: var(--text);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  cursor: pointer;
}

/* ---------- Table ---------- */
.table-scroll { overflow-x: auto; border-radius: 8px; border: 1px solid var(--border); }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  min-width: 900px;
}
th, td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
th {
  font-family: var(--font-display);
  font-weight: 500;
  color: var(--text);
  font-size: 0.82rem;
  cursor: pointer;
  user-select: none;
  background: var(--elev);
  white-space: nowrap;
  transition: background .15s;
  border-bottom: 1px solid var(--border-strong);
}
th.spec-col { cursor: default; color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em; font-size: 0.72rem; }
th:hover:not(.spec-col) { background: var(--surface); }
.th-car { display: flex; align-items: center; gap: 6px; font-weight: 600; }
.th-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.th-trim { font-size: 0.66rem; color: var(--muted); font-family: var(--font-mono); margin-top: 3px; font-weight: 400; letter-spacing: 0; text-transform: none; }
tbody tr { transition: background .15s; }
tbody tr:hover { background: var(--elev); }
td.spec-name {
  color: var(--muted);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-family: var(--font-display);
  background: var(--surface);
  position: sticky; left: 0; z-index: 1;
  border-right: 1px solid var(--border);
  white-space: nowrap;
}
tbody tr:hover td.spec-name { background: var(--elev); }
td.value { font-family: var(--font-mono); font-size: 0.88rem; white-space: nowrap; }
td.value.best {
  color: var(--green);
  background: linear-gradient(90deg, var(--green-soft), transparent);
  font-weight: 600;
}
td.value .u { color: var(--muted); font-size: 0.78em; margin-left: 2px; }
.fine { font-size: 0.75rem; color: var(--muted); margin-top: 12px; }

.unit-toggle { display: inline-flex; border: 1px solid var(--border-strong); border-radius: 999px; overflow: hidden; }
.unit-toggle button {
  background: transparent; color: var(--muted);
  border: none; padding: 6px 14px;
  font-family: var(--font-sans); font-size: 0.82rem;
  cursor: pointer; transition: all .15s;
}
.unit-toggle button.active { background: var(--brass); color: var(--surface); font-weight: 600; }

/* ---------- Practical differences ---------- */
.practicals {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
}
.practical-card {
  background: var(--elev);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 18px;
}
.practical-card h3 {
  font-size: 0.95rem; margin-bottom: 8px;
  color: var(--brass); font-family: var(--font-display);
}
.practical-card p { font-size: 0.88rem; color: var(--text); line-height: 1.55; }

/* ---------- Sources & foot ---------- */
.sources ul { padding-left: 20px; margin: 8px 0 0; }
.sources li { color: var(--muted); font-size: 0.85rem; margin-bottom: 8px; line-height: 1.5; }
.foot { border-top: 1px solid var(--border); padding-top: 20px; color: var(--muted); font-size: 0.8rem; }

/* ---------- Responsive ---------- */
@media (max-width: 640px) {
  .top { padding: 14px 18px; flex-direction: column; align-items: flex-start; gap: 10px; }
  .wrap { padding: 24px 18px 60px; gap: 24px; }
  .panel { padding: 20px; }
  .panel-head { flex-direction: column; gap: 10px; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
}
