/* =====================================================
   Moteurs.com — Feuille de style globale
   Design : clair, professionnel, accessible
   ===================================================== */

:root {
  --color-bg: #ffffff;
  --color-bg-alt: #f5f8fc;
  --color-bg-dark: #0f2540;
  --color-primary: #0a4f9c;
  --color-primary-dark: #073a73;
  --color-accent: #00a37a;
  --color-warning: #d97706;
  --color-text: #1c2a3a;
  --color-text-soft: #4a5b70;
  --color-border: #e1e7f0;
  --color-success: #16a34a;
  --color-danger: #dc2626;

  --shadow-sm: 0 1px 2px rgba(15, 37, 64, 0.05);
  --shadow-md: 0 4px 12px rgba(15, 37, 64, 0.08);
  --shadow-lg: 0 12px 32px rgba(15, 37, 64, 0.12);

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", Monaco, Menlo, Consolas, monospace;

  --container: 1200px;
  --header-h: 72px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--color-primary-dark);
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Header ===== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-h);
  display: flex;
  align-items: center;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: 24px;
}

.logo {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--color-bg-dark);
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo-dot {
  width: 10px;
  height: 10px;
  background: var(--color-accent);
  border-radius: 50%;
  display: inline-block;
}

.main-nav {
  display: flex;
  gap: 28px;
  align-items: center;
}

.main-nav a {
  color: var(--color-text);
  font-weight: 500;
  font-size: 0.95rem;
  position: relative;
}

.main-nav a.active,
.main-nav a:hover {
  color: var(--color-primary);
}

.main-nav a.active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -24px;
  height: 2px;
  background: var(--color-primary);
}

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

.country-select {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  font-size: 0.85rem;
  background: white;
  color: var(--color-text);
  cursor: pointer;
}

/* ===== Buttons ===== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-primary);
  color: white;
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  color: white;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: white;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
}

.btn-secondary:hover {
  background: var(--color-bg-alt);
  color: var(--color-primary-dark);
}

.btn-accent {
  background: var(--color-accent);
  color: white;
}

.btn-accent:hover {
  background: #008a66;
  color: white;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 16px 32px;
  font-size: 1.05rem;
}

/* ===== Hero ===== */

.hero {
  padding: 80px 0 64px;
  background: linear-gradient(180deg, var(--color-bg-alt) 0%, white 100%);
  position: relative;
  overflow: hidden;
}

.hero h1 {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-bg-dark);
  margin-bottom: 20px;
  max-width: 800px;
}

.hero h1 .accent {
  color: var(--color-primary);
}

.hero p.lead {
  font-size: 1.2rem;
  color: var(--color-text-soft);
  max-width: 680px;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

/* ===== Profile Selector ===== */

.profile-selector {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 32px;
  max-width: 720px;
}

.profile-card {
  background: white;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  cursor: pointer;
  transition: all 0.25s ease;
  text-decoration: none;
  color: inherit;
  display: block;
}

.profile-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  color: inherit;
}

.profile-card .icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.profile-card h3 {
  font-size: 1.2rem;
  margin-bottom: 6px;
  color: var(--color-bg-dark);
}

.profile-card p {
  font-size: 0.9rem;
  color: var(--color-text-soft);
}

.profile-card .arrow {
  margin-top: 14px;
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.9rem;
}

/* ===== Sections ===== */

section {
  padding: 64px 0;
}

.section-title {
  font-size: 2.1rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--color-bg-dark);
  margin-bottom: 12px;
  text-align: center;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--color-text-soft);
  text-align: center;
  margin-bottom: 48px;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

.section-alt {
  background: var(--color-bg-alt);
}

/* ===== Cards Grid ===== */

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.card {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: all 0.25s ease;
}

.card:hover {
  box-shadow: var(--shadow-md);
  border-color: #c8d4e6;
}

.card .tag {
  display: inline-block;
  background: var(--color-bg-alt);
  color: var(--color-primary);
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 12px;
}

.card .tag.tag-particulier {
  background: #e6f7f1;
  color: var(--color-accent);
}

.card .tag.tag-urgent {
  background: #fee2e2;
  color: var(--color-danger);
}

.card h3 {
  font-size: 1.15rem;
  margin-bottom: 10px;
  color: var(--color-bg-dark);
  line-height: 1.35;
}

.card p {
  color: var(--color-text-soft);
  font-size: 0.95rem;
  margin-bottom: 14px;
}

.card .meta {
  display: flex;
  gap: 12px;
  font-size: 0.8rem;
  color: var(--color-text-soft);
  border-top: 1px solid var(--color-border);
  padding-top: 12px;
  margin-top: auto;
}

/* ===== Article List ===== */

.article-row {
  display: grid;
  grid-template-columns: 200px 1fr auto;
  gap: 24px;
  padding: 24px 0;
  border-bottom: 1px solid var(--color-border);
  align-items: center;
}

.article-row:last-child {
  border-bottom: none;
}

.article-row .thumb {
  width: 200px;
  height: 130px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-bg-dark) 100%);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 2.5rem;
  font-weight: 800;
}

.article-row h3 {
  font-size: 1.25rem;
  margin-bottom: 8px;
  color: var(--color-bg-dark);
}

.article-row h3 a {
  color: inherit;
}

.article-row p {
  color: var(--color-text-soft);
  font-size: 0.95rem;
  margin-bottom: 10px;
}

.article-row .meta {
  font-size: 0.85rem;
  color: var(--color-text-soft);
  display: flex;
  gap: 14px;
}

/* ===== Filters ===== */

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 32px;
  padding: 14px;
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
}

.filter-btn {
  padding: 8px 16px;
  border: 1px solid transparent;
  background: white;
  color: var(--color-text);
  border-radius: 20px;
  font-size: 0.85rem;
  cursor: pointer;
  font-weight: 500;
  transition: all 0.15s ease;
}

.filter-btn:hover {
  border-color: var(--color-primary);
}

.filter-btn.active {
  background: var(--color-primary);
  color: white;
}

/* ===== Tables ===== */

.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  margin: 24px 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: white;
}

th {
  background: var(--color-bg-alt);
  text-align: left;
  padding: 14px 16px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-bg-dark);
  border-bottom: 2px solid var(--color-border);
}

td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.95rem;
}

tr:last-child td {
  border-bottom: none;
}

tr:hover td {
  background: #fafcff;
}

.cell-positive {
  color: var(--color-success);
  font-weight: 600;
}

.cell-negative {
  color: var(--color-danger);
  font-weight: 600;
}

/* ===== Simulateur ===== */

.simulator-grid {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 32px;
  margin-top: 32px;
}

.simulator-controls {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  position: sticky;
  top: calc(var(--header-h) + 16px);
  align-self: start;
}

.simulator-controls h3 {
  font-size: 1.05rem;
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.form-group input[type="number"],
.form-group input[type="text"],
.form-group select {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: inherit;
  background: white;
  transition: border-color 0.15s ease;
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(10, 79, 156, 0.12);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.toggle-group {
  display: flex;
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
  padding: 3px;
  gap: 2px;
}

.toggle-group button {
  flex: 1;
  padding: 8px 6px;
  border: none;
  background: transparent;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  border-radius: calc(var(--radius-sm) - 1px);
  color: var(--color-text-soft);
  transition: all 0.15s ease;
}

.toggle-group button.active {
  background: white;
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.simulator-results {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  min-height: 500px;
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}

.kpi {
  background: var(--color-bg-alt);
  padding: 18px;
  border-radius: var(--radius-md);
  border-left: 4px solid var(--color-primary);
}

.kpi-label {
  font-size: 0.78rem;
  color: var(--color-text-soft);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 600;
  margin-bottom: 6px;
}

.kpi-value {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--color-bg-dark);
  letter-spacing: -0.02em;
}

.kpi-value.positive {
  color: var(--color-success);
}

.kpi-value.negative {
  color: var(--color-danger);
}

.kpi-sub {
  font-size: 0.78rem;
  color: var(--color-text-soft);
  margin-top: 4px;
}

.chart-container {
  margin: 28px 0;
  padding: 18px;
  background: white;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.chart-bars {
  display: grid;
  grid-template-columns: 100px 1fr 90px;
  gap: 12px;
  margin-bottom: 12px;
  align-items: center;
}

.chart-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
}

.chart-bar-track {
  height: 22px;
  background: var(--color-bg-alt);
  border-radius: 11px;
  overflow: hidden;
  position: relative;
}

.chart-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), #2670c2);
  border-radius: 11px;
  transition: width 0.8s ease;
}

.chart-bar-fill.diesel {
  background: linear-gradient(90deg, #6b7280, #9ca3af);
}

.chart-bar-fill.elec {
  background: linear-gradient(90deg, var(--color-accent), #38bb96);
}

.chart-bar-fill.phev {
  background: linear-gradient(90deg, #d97706, #f59e0b);
}

.chart-value {
  font-size: 0.9rem;
  font-weight: 700;
  text-align: right;
  color: var(--color-bg-dark);
}

.hypotheses {
  margin-top: 24px;
  padding: 16px;
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--color-warning);
}

.hypotheses h4 {
  font-size: 0.9rem;
  margin-bottom: 8px;
  color: var(--color-bg-dark);
}

.hypotheses ul {
  list-style: none;
  font-size: 0.85rem;
  color: var(--color-text-soft);
}

.hypotheses li {
  padding: 3px 0;
}

.hypotheses li::before {
  content: "→ ";
  color: var(--color-warning);
  font-weight: 700;
}

/* ===== Article ===== */

.article-content {
  max-width: 760px;
  margin: 0 auto;
}

.article-content .breadcrumb {
  font-size: 0.85rem;
  color: var(--color-text-soft);
  margin-bottom: 14px;
}

.article-content h1 {
  font-size: 2.4rem;
  line-height: 1.18;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
  color: var(--color-bg-dark);
}

.article-content .article-meta {
  display: flex;
  gap: 16px;
  font-size: 0.9rem;
  color: var(--color-text-soft);
  padding-bottom: 18px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 28px;
}

.article-summary {
  background: var(--color-bg-alt);
  padding: 18px 22px;
  border-radius: var(--radius-md);
  border-left: 4px solid var(--color-primary);
  margin-bottom: 32px;
  font-size: 1.05rem;
}

.article-content h2 {
  font-size: 1.6rem;
  margin: 36px 0 14px;
  color: var(--color-bg-dark);
  letter-spacing: -0.01em;
}

.article-content h3 {
  font-size: 1.2rem;
  margin: 24px 0 10px;
  color: var(--color-bg-dark);
}

.article-content p {
  margin-bottom: 14px;
  font-size: 1.02rem;
  line-height: 1.7;
}

.article-content ul,
.article-content ol {
  margin: 12px 0 16px 24px;
}

.article-content li {
  margin-bottom: 6px;
}

.article-content blockquote {
  border-left: 3px solid var(--color-accent);
  padding: 12px 18px;
  margin: 22px 0;
  background: #f0fbf6;
  font-style: italic;
  color: var(--color-text);
}

.disclaimer {
  margin-top: 40px;
  padding: 18px;
  background: #fffbeb;
  border: 1px solid #fde68a;
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  color: #78350f;
}

.disclaimer strong {
  color: #78350f;
}

.cta-block {
  background: linear-gradient(135deg, var(--color-primary), var(--color-bg-dark));
  color: white;
  padding: 36px;
  border-radius: var(--radius-md);
  text-align: center;
  margin: 40px 0;
}

.cta-block h3 {
  font-size: 1.4rem;
  margin-bottom: 8px;
  color: white;
}

.cta-block p {
  margin-bottom: 18px;
  opacity: 0.92;
}

.cta-block .btn {
  background: white;
  color: var(--color-primary);
}

.cta-block .btn:hover {
  background: var(--color-bg-alt);
  color: var(--color-primary-dark);
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  margin-bottom: 12px;
  background: white;
}

.faq-item h3 {
  font-size: 1.05rem;
  margin: 0 0 6px 0;
  color: var(--color-bg-dark);
}

.faq-item p {
  font-size: 0.95rem;
  color: var(--color-text-soft);
  margin: 0;
}

/* ===== Confidence Badge ===== */

.confidence {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
}

.confidence.high {
  background: #dcfce7;
  color: #166534;
}

.confidence.medium {
  background: #fef3c7;
  color: #92400e;
}

.confidence.low {
  background: #fee2e2;
  color: #991b1b;
}

.confidence::before {
  content: "●";
  font-size: 0.6rem;
}

/* ===== Stats Strip ===== */

.stats-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 24px;
  padding: 32px;
  background: white;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  margin: 24px 0;
}

.stat {
  text-align: center;
}

.stat-value {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--color-text-soft);
  margin-top: 4px;
}

/* ===== Newsletter ===== */

.newsletter {
  background: var(--color-bg-dark);
  color: white;
  padding: 56px 0;
}

.newsletter h2 {
  color: white;
  text-align: center;
  margin-bottom: 8px;
}

.newsletter p {
  text-align: center;
  opacity: 0.85;
  margin-bottom: 24px;
}

.newsletter-form {
  display: flex;
  gap: 8px;
  max-width: 480px;
  margin: 0 auto;
}

.newsletter-form input {
  flex: 1;
  padding: 12px 16px;
  border: none;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-family: inherit;
}

.newsletter-form button {
  padding: 12px 22px;
  background: var(--color-accent);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s ease;
}

.newsletter-form button:hover {
  background: #008a66;
}

/* ===== Footer ===== */

.site-footer {
  background: var(--color-bg-dark);
  color: #b8c5d6;
  padding: 56px 0 24px;
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 36px;
}

.footer-grid h4 {
  color: white;
  font-size: 0.95rem;
  margin-bottom: 14px;
  font-weight: 700;
}

.footer-grid ul {
  list-style: none;
}

.footer-grid li {
  margin-bottom: 8px;
}

.footer-grid a {
  color: #b8c5d6;
  font-size: 0.88rem;
}

.footer-grid a:hover {
  color: white;
}

.footer-bottom {
  border-top: 1px solid #1f3855;
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.82rem;
  color: #8da4c1;
}

/* ===== Responsive ===== */

@media (max-width: 900px) {
  .simulator-grid {
    grid-template-columns: 1fr;
  }

  .simulator-controls {
    position: relative;
    top: 0;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .article-row {
    grid-template-columns: 1fr;
  }

  .article-row .thumb {
    width: 100%;
    height: 160px;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  .profile-selector {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .main-nav {
    display: none;
  }

  .hero {
    padding: 48px 0 36px;
  }

  .hero h1 {
    font-size: 1.8rem;
  }

  section {
    padding: 40px 0;
  }

  .section-title {
    font-size: 1.6rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .newsletter-form {
    flex-direction: column;
  }

  .chart-bars {
    grid-template-columns: 80px 1fr 70px;
  }
}