/* ── Reset & Base ─────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:         #0a0a0c;
  --bg-2:       #111116;
  --bg-3:       #16161d;
  --bg-card:    #13131a;
  --border:     rgba(255,255,255,0.07);
  --border-h:   rgba(255,255,255,0.14);
  --accent:     #e8ff47;
  --accent-dim: rgba(232,255,71,0.12);
  --accent-glow:rgba(232,255,71,0.25);
  --red:        #ff4757;
  --blue:       #4fc3f7;
  --purple:     #b39ddb;
  --orange:     #ffb74d;
  --text:       #e8e8f0;
  --text-2:     #9090a8;
  --text-3:     #555568;
  --mono:       'JetBrains Mono', monospace;
  --sans:       'Syne', sans-serif;
  --radius:     12px;
  --radius-lg:  20px;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
}

/* ── Noise overlay ────────────────────────────────────────────────────────── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
  opacity: 0.4;
}

/* ── Header ───────────────────────────────────────────────────────────────── */
.header {
  padding: 28px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  position: relative;
  z-index: 10;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-mark {
  width: 38px;
  height: 38px;
  background: var(--accent);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-mark svg { color: #0a0a0c; }

.logo-text {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text);
}

.logo-text span { color: var(--accent); }

.nav-btn {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--text-2);
  text-decoration: none;
  padding: 6px 14px;
  border-radius: 20px;
  border: 1px solid var(--border);
  letter-spacing: 0.05em;
  transition: all 0.2s;
}

.nav-btn.active {
  color: var(--accent);
  background: var(--accent-dim);
  border-color: var(--accent);
}

/* ── Hero ─────────────────────────────────────────────────────────────────── */
.hero {
  position: relative;
  padding: 80px 40px 60px;
  text-align: center;
  overflow: hidden;
  z-index: 2;
}

.hero-glow {
  position: absolute;
  width: 600px;
  height: 300px;
  background: radial-gradient(ellipse, rgba(232,255,71,0.06) 0%, transparent 70%);
  top: 0; left: 50%;
  transform: translateX(-50%);
  pointer-events: none;
}

.hero-eyebrow {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
  opacity: 0;
  animation: fadeUp 0.6s ease 0.1s forwards;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
  opacity: 0;
  animation: fadeUp 0.6s ease 0.2s forwards;
}

.hero h1 em {
  font-style: normal;
  color: var(--accent);
  position: relative;
}

.hero-sub {
  font-size: 1rem;
  color: var(--text-2);
  max-width: 480px;
  margin: 0 auto;
  line-height: 1.6;
  opacity: 0;
  animation: fadeUp 0.6s ease 0.3s forwards;
}

/* ── Main Layout ──────────────────────────────────────────────────────────── */
.main {
  max-width: 1600px;
  margin: 0 auto;
  padding: 0 20px 80px;
  position: relative;
  z-index: 2;
}

/* ── Grille page (contenu + bandeaux pub) ─────────────────────────────────── */
.page-grid {
  display: grid;
  grid-template-columns: 160px 1fr 160px;
  gap: 20px;
  align-items: start;
}

/* ── Publicité ────────────────────────────────────────────────────────────── */
.ad-col   { position: sticky; top: 20px; }

.ad-slot  {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  align-items: center;
  overflow: hidden;
}

.ad-label {
  font-family: var(--mono);
  font-size: 0.56rem;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  padding: 5px 0;
  width: 100%;
  text-align: center;
  border-bottom: 1px solid var(--border);
}

.ad-sidebar { min-height: 600px; width: 160px; }

/* ── Content area ─────────────────────────────────────────────────────────── */
.content {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* ── Two-column grid ──────────────────────────────────────────────────────── */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

/* ── Usage grid (sliders côte à côte) ────────────────────────────────────── */
.usage-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

/* ── Vehicle badge ────────────────────────────────────────────────────────── */
.vbadge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 700;
  flex-shrink: 0;
}

.vbadge-a { background: rgba(79,195,247,0.15); color: var(--blue); }
.vbadge-b { background: rgba(255,183,77,0.15); color: var(--orange); }

/* Masquer le dot par défaut si un badge est présent */
.card-title:has(.vbadge)::before { display: none; }

/* ── Card ─────────────────────────────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: border-color 0.2s;
}

.card:hover { border-color: var(--border-h); }

.card-title {
  font-size: 0.72rem;
  font-family: var(--mono);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 22px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-title::before {
  content: '';
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
  flex-shrink: 0;
}

/* ── Section separator ───────────────────────────────────────────────────── */
.section-sep {
  height: 1px;
  background: var(--border);
  margin: 24px 0;
}

/* ── Form Elements ────────────────────────────────────────────────────────── */
.form-group { margin-bottom: 18px; }

.form-label {
  display: block;
  font-size: 0.8rem;
  color: var(--text-2);
  margin-bottom: 8px;
  font-weight: 500;
}

.form-label span {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--text-3);
  margin-left: 6px;
}

.form-control {
  width: 100%;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--sans);
  font-size: 0.9rem;
  padding: 11px 14px;
  transition: border-color 0.2s, box-shadow 0.2s;
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
}

.form-control:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.form-control:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

select.form-control {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%239090a8' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}

.input-with-unit {
  position: relative;
}

.input-unit {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-3);
  pointer-events: none;
}

.input-with-unit .form-control { padding-right: 52px; }

/* ── Fuel type selector ───────────────────────────────────────────────────── */
.fuel-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.fuel-btn {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-2);
  font-family: var(--sans);
  font-size: 0.82rem;
  font-weight: 500;
  padding: 10px 12px;
  cursor: pointer;
  transition: all 0.15s;
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}

.fuel-btn:hover {
  border-color: var(--border-h);
  color: var(--text);
}

.fuel-btn.active {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent);
}

.fuel-icon { font-size: 1.1rem; }

/* ── Range slider ─────────────────────────────────────────────────────────── */
.slider-wrapper { position: relative; }

input[type="range"] {
  -webkit-appearance: none;
  width: 100%;
  height: 4px;
  border-radius: 2px;
  background: var(--bg-3);
  outline: none;
  margin-top: 8px;
  border: 1px solid var(--border);
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: 3px solid var(--bg);
  box-shadow: 0 0 8px var(--accent-glow);
  transition: box-shadow 0.2s;
}

input[type="range"]::-webkit-slider-thumb:hover {
  box-shadow: 0 0 16px var(--accent-glow);
}

.slider-value {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--accent);
  text-align: right;
  margin-bottom: 4px;
  font-weight: 500;
}

/* ── CTA Button ───────────────────────────────────────────────────────────── */
.btn-calculate {
  width: 100%;
  padding: 14px;
  background: var(--accent);
  border: none;
  border-radius: var(--radius);
  color: #0a0a0c;
  font-family: var(--sans);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: all 0.2s;
  position: relative;
  overflow: hidden;
  margin-top: 8px;
}

.btn-calculate::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.1);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.btn-calculate:hover::before { transform: scaleX(1); }
.btn-calculate:hover { box-shadow: 0 4px 24px var(--accent-glow); }
.btn-calculate:active { transform: scale(0.98); }

.btn-calculate.loading {
  pointer-events: none;
  opacity: 0.7;
}

/* ── Results Panel ────────────────────────────────────────────────────────── */
.results-panel {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.results-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 400px;
  text-align: center;
  color: var(--text-3);
  gap: 16px;
}

.results-empty-icon {
  font-size: 3rem;
  opacity: 0.3;
}

.results-empty p {
  font-size: 0.85rem;
  font-family: var(--mono);
  letter-spacing: 0.05em;
}

/* ── KPI Cards ────────────────────────────────────────────────────────────── */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.kpi-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px 20px;
  position: relative;
  overflow: hidden;
  transition: border-color 0.2s, transform 0.2s;
}

.kpi-card:hover {
  border-color: var(--border-h);
  transform: translateY(-2px);
}

.kpi-card.primary {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, rgba(232,255,71,0.08) 0%, transparent 60%);
  border-color: rgba(232,255,71,0.2);
}

.kpi-card.primary:hover { border-color: rgba(232,255,71,0.35); }

.kpi-label {
  font-family: var(--mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-3);
  margin-bottom: 8px;
}

.kpi-value {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text);
  line-height: 1;
}

.kpi-card.primary .kpi-value {
  font-size: 2.6rem;
  color: var(--accent);
}

.kpi-unit {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--text-3);
  margin-top: 4px;
}

/* ── Breakdown Chart ──────────────────────────────────────────────────────── */
.breakdown-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 24px; }

.breakdown-bar {
  height: 10px;
  border-radius: 5px;
  background: var(--bg-3);
  overflow: hidden;
  display: flex;
  margin: 16px 0;
  gap: 2px;
}

.bar-segment {
  height: 100%;
  border-radius: 3px;
  transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.bar-segment.depreciation { background: var(--accent); }
.bar-segment.fuel         { background: var(--blue); }
.bar-segment.insurance    { background: var(--purple); }
.bar-segment.maintenance  { background: var(--orange); }
.bar-segment.registration { background: #26c6da; }
.bar-segment.ct           { background: #66bb6a; }

.breakdown-legend {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 16px;
}

.legend-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.legend-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.legend-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.legend-dot.depreciation { background: var(--accent); }
.legend-dot.fuel         { background: var(--blue); }
.legend-dot.insurance    { background: var(--purple); }
.legend-dot.maintenance  { background: var(--orange); }
.legend-dot.registration { background: #26c6da; }
.legend-dot.ct           { background: #66bb6a; }

.legend-name {
  font-size: 0.85rem;
  color: var(--text-2);
}

.legend-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.legend-amount {
  font-family: var(--mono);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
}

.legend-pct {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--text-3);
  min-width: 36px;
  text-align: right;
}

/* ── Depreciation chart ───────────────────────────────────────────────────── */
.depr-chart-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 24px; }

.depr-chart {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  height: 120px;
  margin-top: 16px;
}

.depr-bar-wrap {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  height: 100%;
  justify-content: flex-end;
}

.depr-bar {
  width: 100%;
  border-radius: 4px 4px 0 0;
  background: linear-gradient(180deg, var(--accent) 0%, rgba(232,255,71,0.3) 100%);
  min-height: 4px;
  transition: height 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.depr-bar-val {
  font-family: var(--mono);
  font-size: 0.6rem;
  color: var(--text-3);
  white-space: nowrap;
}

.depr-bar-label {
  font-family: var(--mono);
  font-size: 0.62rem;
  color: var(--text-3);
}

/* ── Loader ───────────────────────────────────────────────────────────────── */
.loader {
  display: none;
  width: 20px; height: 20px;
  border: 2px solid transparent;
  border-top-color: #0a0a0c;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  margin: 0 auto;
}

.loading .btn-text { display: none; }
.loading .loader { display: block; }

/* ── Alert ────────────────────────────────────────────────────────────────── */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 0.82rem;
  border: 1px solid;
  display: none;
}

.alert.error {
  background: rgba(255,71,87,0.08);
  border-color: rgba(255,71,87,0.25);
  color: var(--red);
  display: block;
}

.alert.info {
  background: rgba(79,195,247,0.08);
  border-color: rgba(79,195,247,0.25);
  color: var(--blue);
  display: block;
}

/* ── Animations ───────────────────────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.fade-in {
  animation: fadeUp 0.4s ease forwards;
}

/* ── Comparison VS header ─────────────────────────────────────────────────── */
.comp-vs {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 16px;
  align-items: center;
  margin-bottom: 20px;
}

.comp-vehicle {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 20px 16px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  transition: border-color 0.2s;
}

.comp-vehicle.winner {
  border-color: rgba(232,255,71,0.3);
  background: rgba(232,255,71,0.04);
}

.comp-badge {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 1.1rem;
  font-weight: 700;
}

.comp-badge.badge-a { background: rgba(79,195,247,0.15); color: var(--blue); }
.comp-badge.badge-b { background: rgba(255,183,77,0.15); color: var(--orange); }

.comp-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-2);
  text-align: center;
  max-width: 200px;
}

.comp-total {
  font-size: 1.9rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text);
  line-height: 1;
}

.comp-vehicle.winner .comp-total { color: var(--accent); }

.comp-sub {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--text-3);
}

.winner-label {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--accent);
  letter-spacing: 0.05em;
}

.vs-divider {
  font-family: var(--mono);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-3);
  letter-spacing: 0.15em;
  text-align: center;
}

.comp-diff {
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-2);
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.comp-diff strong { color: var(--accent); font-weight: 700; }

/* ── Comparison table ─────────────────────────────────────────────────────── */
.comp-table {
  display: flex;
  flex-direction: column;
  margin-top: 4px;
}

.comp-table-header {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 8px;
  padding: 8px 12px;
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  border-bottom: 1px solid var(--border);
}

.comp-table-header > div:nth-child(2),
.comp-table-header > div:nth-child(3) { text-align: right; }

.comp-table-section {
  font-family: var(--mono);
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-3);
  padding: 14px 12px 4px;
}

.comp-table-row {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 8px;
  padding: 9px 12px;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  transition: background 0.15s;
}

.comp-table-row:last-child { border-bottom: none; }
.comp-table-row:hover { background: rgba(255,255,255,0.02); }

.comp-row-label {
  font-size: 0.82rem;
  color: var(--text-2);
}

.comp-row-val {
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--text);
  text-align: right;
}

.comp-row-val.better {
  color: var(--accent);
  font-weight: 600;
}

/* ── Comparison breakdowns (2 cartes côte à côte) ────────────────────────── */
.comp-breakdowns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

/* ── Responsive ───────────────────────────────────────────────────────────── */
@media (max-width: 1440px) {
  .page-grid { grid-template-columns: 1fr; }
  .ad-col    { display: none; }
}

@media (max-width: 900px) {
  .two-col          { grid-template-columns: 1fr; }
  .usage-grid       { grid-template-columns: 1fr; }
  .comp-breakdowns  { grid-template-columns: 1fr; }
  .hero   { padding: 50px 20px 40px; }
  .main   { padding: 0 20px 60px; }
  .header { padding: 20px; }
}

@media (max-width: 600px) {
  .comp-vs { grid-template-columns: 1fr; }
  .vs-divider { display: none; }
  .kpi-grid { grid-template-columns: 1fr; }
  .kpi-card.primary { grid-column: 1; }
}