/* ============================================================
   PortTrafic — Feuille de style principale
   Charte : bleu #288CB4 (cyan maritime de Main3.py BGR→RGB) / fond sombre
   ============================================================ */

:root {
  --gold:       #288CB4;
  --gold-light: #3aadd4;
  --cyan:       #288CB4;
  --bg:         #0a0e1a;
  --bg-card:    #131826;
  --bg-nav:     #0d1120;
  --text:       #e2e8f0;
  --text-muted: #8896a5;
  --border:     rgba(40,140,180,0.30);
  --radius:     10px;
  --shadow:     0 4px 24px rgba(0,0,0,0.45);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--gold); border-radius: 3px; }

/* ============================================================
   NAVIGATION
   ============================================================ */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-nav);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(8px);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo ancre SVG + texte */
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.logo-anchor {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.logo-port {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--gold);
  letter-spacing: 2px;
}

.logo-trafic {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 4px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color .2s;
}

.nav-links a:hover, .nav-links a.active { color: var(--gold); }

.btn-contact {
  background: var(--gold);
  color: #0a0e1a !important;
  padding: 8px 20px;
  border-radius: 6px;
  font-weight: 700 !important;
  transition: background .2s, transform .1s !important;
}

.btn-contact:hover {
  background: var(--gold-light) !important;
  transform: translateY(-1px);
}

/* Hamburger (mobile) */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: .3s;
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 80px 24px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 60% at 60% 40%, rgba(0,180,216,0.08) 0%, transparent 70%),
    radial-gradient(ellipse 50% 50% at 20% 80%, rgba(40,140,180,0.07) 0%, transparent 60%),
    var(--bg);
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(40,140,180,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(40,140,180,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero-inner {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(40,140,180,0.12);
  border: 1px solid var(--border);
  color: var(--gold);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 20px;
  margin-bottom: 20px;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.hero-badge span { width: 6px; height: 6px; background: var(--gold); border-radius: 50%; animation: pulse 2s infinite; }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero h1 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
}

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

.hero-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin-bottom: 36px;
  max-width: 480px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-primary {
  background: var(--gold);
  color: #0a0e1a;
  padding: 14px 32px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 0.95rem;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: background .2s, transform .15s;
}

.btn-primary:hover { background: var(--gold-light); transform: translateY(-2px); }

.btn-outline {
  border: 1px solid var(--border);
  color: var(--text);
  padding: 14px 32px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: border-color .2s, color .2s;
}

.btn-outline:hover { border-color: var(--gold); color: var(--gold); }

/* Stats rapides */
.hero-stats {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: transform .2s, border-color .2s;
}

.stat-card:hover { transform: translateX(6px); border-color: var(--gold); }

.stat-icon {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background: rgba(40,140,180,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.stat-card h3 { font-size: 1rem; font-weight: 700; color: var(--text); }
.stat-card p  { font-size: 0.82rem; color: var(--text-muted); }

/* ============================================================
   SECTIONS COMMUNES
   ============================================================ */
section { padding: 80px 24px; }

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

.section-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 10px;
}

.section-title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 800;
  margin-bottom: 16px;
}

.section-sub {
  color: var(--text-muted);
  font-size: 1rem;
  max-width: 560px;
  margin-bottom: 48px;
}

/* ============================================================
   FONCTIONNALITÉS
   ============================================================ */
.features { background: var(--bg-card); }

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

.feature-card {
  background: var(--bg);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color .25s, transform .25s;
}

.feature-card:hover { border-color: var(--gold); transform: translateY(-4px); }

.feature-icon {
  font-size: 2rem;
  margin-bottom: 14px;
  display: block;
}

.feature-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
}

.feature-card p { font-size: 0.88rem; color: var(--text-muted); line-height: 1.65; }

/* ============================================================
   VIDEO DEMO
   ============================================================ */
.video-section { background: var(--bg); }

.video-tabs {
  display: flex;
  gap: 12px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.tab-btn {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 8px 20px;
  border-radius: 6px;
  font-size: 0.87rem;
  font-weight: 600;
  cursor: pointer;
  transition: .2s;
}

.tab-btn.active, .tab-btn:hover {
  background: rgba(40,140,180,0.15);
  border-color: var(--gold);
  color: var(--gold);
}

.video-wrapper {
  position: relative;
  background: #000;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.video-wrapper video {
  width: 100%;
  height: auto;
  max-height: 540px;
  object-fit: contain;
  display: block;
}

.video-caption {
  padding: 14px 20px;
  background: var(--bg-card);
  font-size: 0.83rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
}

.video-caption::before {
  content: '';
  width: 8px; height: 8px;
  background: var(--cyan);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

/* ============================================================
   COMMENT CA MARCHE
   ============================================================ */
.how { background: var(--bg-card); }

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 32px;
  position: relative;
}

.step {
  text-align: center;
  padding: 32px 20px;
}

.step-num {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 2px solid var(--gold);
  color: var(--gold);
  font-size: 1.3rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}

.step h3 { font-size: 0.98rem; font-weight: 700; margin-bottom: 8px; }
.step p  { font-size: 0.85rem; color: var(--text-muted); }

/* ============================================================
   ARGUMENTS / POURQUOI
   ============================================================ */
.arguments { background: var(--bg); }

.args-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.arg-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 20px;
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.05);
  transition: border-color .2s;
}

.arg-item:hover { border-color: var(--border); }

.arg-check {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(40,140,180,0.15);
  color: var(--gold);
  font-size: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}

.arg-item h4 { font-size: 0.92rem; font-weight: 700; margin-bottom: 4px; }
.arg-item p  { font-size: 0.83rem; color: var(--text-muted); }

/* ============================================================
   CTA BANDE
   ============================================================ */
.cta-band {
  background: linear-gradient(135deg, rgba(40,140,180,0.15) 0%, rgba(0,180,216,0.08) 100%);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 60px 24px;
  text-align: center;
}

.cta-band h2 { font-size: clamp(1.4rem, 3vw, 2rem); font-weight: 800; margin-bottom: 12px; }
.cta-band p  { color: var(--text-muted); margin-bottom: 28px; }

/* ============================================================
   PAGE CONTACT
   ============================================================ */
.contact-hero {
  padding: 80px 24px 40px;
  text-align: center;
}

.contact-hero h1 { font-size: clamp(1.8rem, 4vw, 3rem); font-weight: 800; margin-bottom: 12px; }
.contact-hero p  { color: var(--text-muted); font-size: 1rem; max-width: 480px; margin: 0 auto; }

.contact-grid {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px 80px;
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 48px;
  align-items: start;
}

/* Infos contact */
.contact-info h2 { font-size: 1.2rem; font-weight: 700; margin-bottom: 24px; color: var(--gold); }

.contact-info-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  margin-bottom: 24px;
}

.contact-info-icon {
  width: 42px;
  height: 42px;
  border-radius: 8px;
  background: rgba(40,140,180,0.12);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

.contact-info-item h4 { font-size: 0.85rem; font-weight: 700; margin-bottom: 2px; }
.contact-info-item p, .contact-info-item a {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-decoration: none;
}

.contact-info-item a:hover { color: var(--gold); }

.contact-hours {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-top: 28px;
}

.contact-hours h4 { font-size: 0.88rem; font-weight: 700; color: var(--gold); margin-bottom: 10px; }
.contact-hours p  { font-size: 0.82rem; color: var(--text-muted); margin-bottom: 4px; }

/* Formulaire */
.contact-form-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 36px;
  box-shadow: var(--shadow);
}

.contact-form-card h2 { font-size: 1.1rem; font-weight: 700; margin-bottom: 24px; }

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

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

.form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 7px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 7px;
  color: var(--text);
  padding: 11px 14px;
  font-size: 0.92rem;
  font-family: inherit;
  transition: border-color .2s;
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(40,140,180,0.1);
}

.form-group textarea { resize: vertical; min-height: 130px; }

.form-group select option { background: var(--bg-card); }

.form-submit {
  width: 100%;
  background: var(--gold);
  color: #0a0e1a;
  border: none;
  padding: 14px;
  border-radius: 8px;
  font-size: 0.97rem;
  font-weight: 700;
  cursor: pointer;
  transition: background .2s, transform .15s;
  font-family: inherit;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.form-submit:hover { background: var(--gold-light); transform: translateY(-1px); }

.form-note {
  font-size: 0.76rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: 12px;
}

.form-success {
  display: none;
  text-align: center;
  padding: 24px;
  color: #4ade80;
  font-weight: 600;
}

/* ============================================================
   FOOTER
   ============================================================ */
footer {
  background: var(--bg-nav);
  border-top: 1px solid var(--border);
  padding: 48px 24px 0;
}

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

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.footer-brand p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 12px;
  line-height: 1.65;
  max-width: 280px;
}

.footer-col h4 {
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-bottom: 14px;
}

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

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

.footer-col ul li a {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: color .2s;
}

.footer-col ul li a:hover { color: var(--gold); }

.footer-bottom {
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-bottom a { color: var(--gold); text-decoration: none; }
.footer-bottom a:hover { text-decoration: underline; }

.footer-legal {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-legal a {
  font-size: 0.78rem;
  color: var(--text-muted);
  text-decoration: none;
}

.footer-legal a:hover { color: var(--text); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .hero-inner     { grid-template-columns: 1fr; }
  .hero-stats     { display: grid; grid-template-columns: 1fr 1fr; }
  .args-grid      { grid-template-columns: 1fr; }
  .footer-grid    { grid-template-columns: 1fr 1fr; }
  .contact-grid   { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .nav-links      { display: none; flex-direction: column; position: absolute; top: 64px; left: 0; right: 0; background: var(--bg-nav); padding: 16px 24px; border-bottom: 1px solid var(--border); }
  .nav-links.open { display: flex; }
  .hamburger      { display: flex; }
  .hero           { padding: 50px 16px; }
  .hero-stats     { grid-template-columns: 1fr; }
  .form-row       { grid-template-columns: 1fr; }
  .footer-grid    { grid-template-columns: 1fr; }
  .footer-bottom  { flex-direction: column; text-align: center; }
  .contact-form-card { padding: 24px 16px; }
}