/* ============================================================
   SNOWTRACK MARKETING SITE — Styles partagés
   ============================================================ */

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

:root {
  --bg: #0d1117;
  --bg-gradient: linear-gradient(135deg, #0d1117 0%, #1f2630 100%);
  --panel: #161b22;
  --panel-hi: #1f2630;
  --border: #30363d;
  --text: #e6edf3;
  --text-dim: #8b949e;
  --text-bright: #ffffff;
  --accent: #ffb020;
  --accent-dim: rgba(255, 176, 32, 0.1);
  --accent-border: rgba(255, 176, 32, 0.3);
  --success: #3fb950;
  --danger: #f85149;
  --blue: #58a6ff;
}

html, body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

/* ====== NAVBAR ====== */
.mk-nav {
  position: sticky;
  top: 0;
  background: rgba(22, 27, 34, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  z-index: 100;
}

.mk-nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.mk-logo {
  font-size: 22px;
  font-weight: 900;
  letter-spacing: -0.5px;
  color: var(--text);
  flex-shrink: 0;
}
.mk-logo span { color: var(--accent); }

.mk-nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 14px;
}

.mk-nav-link {
  color: var(--text-dim);
  font-weight: 500;
  transition: color 0.15s;
}
.mk-nav-link:hover { color: var(--text); }
.mk-nav-link.active { color: var(--accent); }

.mk-btn {
  display: inline-block;
  padding: 10px 18px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.15s;
  border: 1px solid transparent;
  font-family: inherit;
}

.mk-btn-primary {
  background: var(--accent);
  color: #0d1117;
}
.mk-btn-primary:hover {
  background: #ffc14d;
  transform: translateY(-1px);
}

.mk-btn-secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.mk-btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.mk-btn-large {
  padding: 14px 28px;
  font-size: 15px;
}

.mk-mobile-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 18px;
}

/* ====== BOUTON LANGUE FR/EN ====== */
.lang-toggle {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.15s;
  white-space: nowrap;
  letter-spacing: 1px;
  min-width: 44px;
}
.lang-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(255, 176, 32, 0.05);
}

/* ====== SECTIONS ====== */
.mk-section {
  padding: 80px 32px;
}

.mk-section-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.mk-section-narrow {
  max-width: 800px;
  margin: 0 auto;
}

.mk-section-tight {
  padding: 48px 32px;
}

/* ====== HERO ====== */
.mk-hero {
  background: var(--bg-gradient);
  padding: 80px 32px 100px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.mk-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 1200px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-border), transparent);
}

.mk-badge {
  display: inline-block;
  background: var(--accent-dim);
  border: 1px solid var(--accent-border);
  color: var(--accent);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 12px;
  letter-spacing: 1px;
  font-weight: 600;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.mk-h1 {
  font-size: 56px;
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -2px;
  margin-bottom: 20px;
  color: var(--text-bright);
}
.mk-h1 .accent { color: var(--accent); }

.mk-h2 {
  font-size: 36px;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -1px;
  margin-bottom: 16px;
  color: var(--text-bright);
}

.mk-h3 {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 12px;
  color: var(--text-bright);
}

.mk-lead {
  font-size: 18px;
  color: var(--text-dim);
  max-width: 600px;
  margin: 0 auto 32px;
  line-height: 1.6;
}

.mk-text { font-size: 16px; color: var(--text-dim); line-height: 1.7; }

.mk-cta-row {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.mk-section-header {
  text-align: center;
  margin-bottom: 56px;
}

.mk-section-header .mk-h2 { margin-bottom: 12px; }
.mk-section-header .mk-text { max-width: 600px; margin: 0 auto; font-size: 17px; }

/* ====== STATS ROW ====== */
.mk-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  padding: 48px 32px;
  background: var(--panel);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.mk-stat { text-align: center; }
.mk-stat-value {
  font-size: 32px;
  font-weight: 900;
  color: var(--accent);
  letter-spacing: -1px;
}
.mk-stat-label {
  font-size: 13px;
  color: var(--text-dim);
  margin-top: 4px;
  letter-spacing: 0.5px;
}

/* ====== FEATURES GRID ====== */
.mk-features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.mk-feature {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  transition: all 0.2s;
}
.mk-feature:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.mk-feature-icon {
  width: 48px;
  height: 48px;
  background: var(--accent-dim);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 16px;
}

.mk-feature h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-bright);
}

.mk-feature p {
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.6;
}

/* ====== BIG FEATURE BLOCKS ====== */
.mk-big-feature {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  margin-bottom: 100px;
}

.mk-big-feature.reverse { direction: rtl; }
.mk-big-feature.reverse > * { direction: ltr; }

.mk-big-feature-text h2 { margin-bottom: 16px; }
.mk-big-feature-text p { font-size: 16px; color: var(--text-dim); margin-bottom: 16px; }
.mk-big-feature-text ul { list-style: none; padding: 0; }
.mk-big-feature-text li {
  padding: 8px 0 8px 28px;
  position: relative;
  color: var(--text);
  font-size: 15px;
}
.mk-big-feature-text li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
  font-size: 18px;
}

.mk-big-feature-visual {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  min-height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.mk-feature-emoji {
  font-size: 96px;
  filter: grayscale(0.2);
}

/* ====== CTA SECTION ====== */
.mk-cta-banner {
  background: linear-gradient(135deg, #1f2630 0%, #161b22 100%);
  border: 1px solid var(--accent-border);
  border-radius: 16px;
  padding: 56px 40px;
  text-align: center;
  margin: 0 32px;
  max-width: 1136px;
  margin: 0 auto;
}

.mk-cta-banner .mk-h2 { color: var(--text-bright); }
.mk-cta-banner .mk-h2 .accent { color: var(--accent); }

/* ====== FOOTER ====== */
.mk-footer {
  background: var(--panel);
  border-top: 1px solid var(--border);
  padding: 48px 32px 24px;
  margin-top: 80px;
}

.mk-footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 32px;
}

.mk-footer-brand .mk-logo { display: block; margin-bottom: 12px; }
.mk-footer-brand p { font-size: 14px; color: var(--text-dim); line-height: 1.6; }

.mk-footer-col h4 {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-dim);
  margin-bottom: 16px;
  font-weight: 700;
}

.mk-footer-col ul { list-style: none; padding: 0; }
.mk-footer-col li { margin-bottom: 10px; }
.mk-footer-col a {
  font-size: 14px;
  color: var(--text);
  transition: color 0.15s;
}
.mk-footer-col a:hover { color: var(--accent); }

.mk-footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--text-dim);
  flex-wrap: wrap;
  gap: 16px;
}

/* ====== FORM ====== */
.mk-form {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 40px;
}

.mk-form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}

.mk-form-group { margin-bottom: 16px; }

.mk-form-label {
  display: block;
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
}

.mk-form-input, .mk-form-textarea, .mk-form-select {
  width: 100%;
  padding: 12px 14px;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 15px;
  font-family: inherit;
  transition: border-color 0.15s;
}

.mk-form-input:focus, .mk-form-textarea:focus, .mk-form-select:focus {
  outline: none;
  border-color: var(--accent);
}

.mk-form-textarea {
  min-height: 120px;
  resize: vertical;
}

.mk-form-success, .mk-form-error {
  padding: 14px;
  border-radius: 6px;
  margin-bottom: 16px;
  font-size: 14px;
  display: none;
}

.mk-form-success {
  background: rgba(63, 185, 80, 0.1);
  border: 1px solid rgba(63, 185, 80, 0.3);
  color: var(--success);
}

.mk-form-error {
  background: rgba(248, 81, 73, 0.1);
  border: 1px solid rgba(248, 81, 73, 0.3);
  color: var(--danger);
}

.mk-form-success.show, .mk-form-error.show { display: block; }

/* ====== ABOUT PAGE ====== */
.mk-about-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 40px;
  margin-bottom: 24px;
}

.mk-about-card h2 { font-size: 28px; margin-bottom: 16px; }
.mk-about-card p {
  font-size: 16px;
  color: var(--text-dim);
  line-height: 1.7;
  margin-bottom: 14px;
}
.mk-about-card p:last-child { margin-bottom: 0; }
.mk-about-card strong { color: var(--text); }

.mk-values-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 32px;
}

.mk-value-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px;
}

.mk-value-card h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 8px;
}

.mk-value-card p {
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.6;
}

/* ====== RESPONSIVE ====== */
@media (max-width: 900px) {
  .mk-nav-links { gap: 16px; }
  .mk-nav-link { display: none; }
  .mk-nav-link.mk-btn { display: inline-block; }
  .mk-mobile-toggle { display: block; }
  .mk-nav-links.open .mk-nav-link { display: block; }
  .mk-nav-links.open {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--panel);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 16px 32px;
    gap: 12px;
  }
  .mk-h1 { font-size: 36px; letter-spacing: -1px; }
  .mk-h2 { font-size: 28px; }
  .mk-features-grid { grid-template-columns: 1fr; }
  .mk-big-feature {
    grid-template-columns: 1fr;
    gap: 32px;
    margin-bottom: 64px;
  }
  .mk-big-feature.reverse { direction: ltr; }
  .mk-stats { grid-template-columns: 1fr; gap: 24px; }
  .mk-section { padding: 56px 24px; }
  .mk-hero { padding: 56px 24px 72px; }
  .mk-form-row { grid-template-columns: 1fr; }
  .mk-form { padding: 24px; }
  .mk-footer-inner { grid-template-columns: 1fr; gap: 32px; }
  .mk-values-grid { grid-template-columns: 1fr; }
}