/* ============================================================
   Provence Drone Expert — Feuille de style principale
   Design : Clair · Professionnel · Cinématique
   ============================================================ */

/* ---- Variables ---- */
:root {
  --primary:      #0A1628;
  --accent:       #2563EB;
  --accent-dark:  #1D4ED8;
  --accent-light: #EFF6FF;
  --text:         #1E293B;
  --text-muted:   #64748B;
  --border:       #E2E8F0;
  --bg:           #FFFFFF;
  --bg-alt:       #F8FAFC;
  --bg-dark:      #0A1628;
  --success:      #059669;
  --danger:       #DC2626;

  --radius:       12px;
  --radius-lg:    20px;
  --shadow:       0 2px 16px rgba(10,22,40,.08);
  --shadow-lg:    0 8px 40px rgba(10,22,40,.14);
  --shadow-xl:    0 20px 60px rgba(10,22,40,.18);

  --gap-xs:       8px;
  --gap-sm:       16px;
  --gap-md:       24px;
  --gap-lg:       40px;
  --gap-xl:       64px;
  --gap-2xl:      96px;

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

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; overflow-x: hidden; -webkit-text-size-adjust: 100%; }
body { font-family: 'Inter', system-ui, -apple-system, sans-serif; color: var(--text); background: var(--bg); line-height: 1.6; overflow-x: hidden; }
img, video { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea, select { font-family: inherit; font-size: 16px; }

/* ---- Typographie ---- */
h1, h2, h3, h4, h5 { font-weight: 700; line-height: 1.2; color: var(--primary); }
h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.4rem); }
p  { color: var(--text-muted); line-height: 1.7; }

/* ---- Utilitaires ---- */
.container { max-width: var(--container); margin: 0 auto; padding: 0 var(--gap-md); }
.section { padding: var(--gap-2xl) 0; }
.section-alt { background: var(--bg-alt); }
.section-dark { background: var(--bg-dark); color: #fff; }
.section-dark h2, .section-dark h3 { color: #fff; }
.section-dark p { color: rgba(255,255,255,.7); }
.section-label { font-size: .8rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--accent); margin-bottom: var(--gap-sm); display: block; }
.section-title { margin-bottom: var(--gap-md); }
.section-intro { font-size: 1.1rem; max-width: 620px; margin-bottom: var(--gap-lg); }
.text-center { text-align: center; }
.text-center .section-intro { margin-left: auto; margin-right: auto; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 28px; border-radius: 8px; font-weight: 600; font-size: .95rem;
  transition: all .2s; white-space: nowrap;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); transform: translateY(-1px); box-shadow: 0 6px 20px rgba(37,99,235,.35); }
.btn-secondary { background: #fff; color: var(--accent); border: 2px solid var(--accent); }
.btn-secondary:hover { background: var(--accent-light); }
.btn-white { background: #fff; color: var(--primary); }
.btn-white:hover { background: var(--bg-alt); }
.btn-lg { padding: 16px 36px; font-size: 1rem; border-radius: 10px; }

/* ---- Reveal animation ---- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity: 1; transform: none; }

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--header-h);
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s, box-shadow .3s;
}
.site-header.scrolled { border-color: var(--border); box-shadow: var(--shadow); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); gap: var(--gap-md); }

.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.25rem; color: var(--primary); flex-shrink: 0; }
.logo-icon { font-size: 1.5rem; color: var(--accent); }

.nav-links { display: flex; align-items: center; gap: var(--gap-sm); }
.nav-links a { font-size: .9rem; font-weight: 500; color: var(--text-muted); padding: 8px 4px; border-bottom: 2px solid transparent; transition: color .2s, border-color .2s; }
.nav-links a:hover, .nav-links a.active { color: var(--primary); border-color: var(--accent); }
.nav-links .nav-cta {
  background: var(--accent); color: #fff !important; padding: 10px 20px;
  border-radius: 8px; border: none !important; font-weight: 600;
  transition: background .2s, transform .2s !important;
}
.nav-links .nav-cta:hover { background: var(--accent-dark) !important; transform: translateY(-1px); }

.burger { display: none; flex-direction: column; gap: 5px; padding: 6px; }
.burger span { display: block; width: 22px; height: 2px; background: var(--primary); border-radius: 2px; transition: all .3s; }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative; min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden; color: #fff;
  padding-top: var(--header-h);
}
.hero-bg {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, #0A1628 0%, #0F2A52 50%, #1a1a2e 100%);
  z-index: 0;
}
.hero-video {
  position: absolute; inset: 0; z-index: 1;
  object-fit: cover; width: 100%; height: 100%;
  opacity: .5;
}
.hero-overlay {
  position: absolute; inset: 0; z-index: 2;
  background: linear-gradient(to bottom, rgba(10,22,40,.4) 0%, rgba(10,22,40,.7) 100%);
}
.hero-content {
  position: relative; z-index: 3;
  text-align: center; padding: var(--gap-xl) var(--gap-md);
  max-width: 820px;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(37,99,235,.25); border: 1px solid rgba(37,99,235,.5);
  color: #93C5FD; font-size: .82rem; font-weight: 600; letter-spacing: .08em;
  padding: 6px 16px; border-radius: 100px; margin-bottom: var(--gap-md);
  backdrop-filter: blur(8px);
}
.hero h1 { color: #fff; margin-bottom: var(--gap-sm); text-shadow: 0 2px 20px rgba(0,0,0,.4); }
.hero h1 span { color: #93C5FD; }
.hero-sub { font-size: 1.15rem; color: rgba(255,255,255,.8); margin-bottom: var(--gap-lg); max-width: 560px; margin-left: auto; margin-right: auto; }
.hero-actions { display: flex; gap: var(--gap-sm); justify-content: center; flex-wrap: wrap; }
.hero-scroll {
  position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%); z-index: 3;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: rgba(255,255,255,.5); font-size: .75rem; letter-spacing: .1em; animation: bounce 2s infinite;
}
.hero-scroll::after { content: '↓'; font-size: 1.2rem; }
@keyframes bounce { 0%,100%{transform:translateX(-50%) translateY(0)} 50%{transform:translateX(-50%) translateY(8px)} }

/* ---- Stats bar ---- */
.stats-bar {
  background: var(--primary); color: #fff;
  padding: var(--gap-md) 0;
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--gap-md); text-align: center; }
.stat-item strong { display: block; font-size: 2rem; font-weight: 800; color: #93C5FD; }
.stat-item span { font-size: .82rem; color: rgba(255,255,255,.6); }

/* ============================================================
   CERTIFICATIONS
   ============================================================ */
.cert-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--gap-md); }
.cert-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: var(--gap-md) var(--gap-sm); text-align: center;
  box-shadow: var(--shadow); transition: transform .25s, box-shadow .25s;
}
.cert-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.cert-icon { font-size: 2.2rem; margin-bottom: var(--gap-sm); }
.cert-card h3 { font-size: 1rem; margin-bottom: var(--gap-xs); }
.cert-card p { font-size: .85rem; }

/* ============================================================
   SERVICES (cards)
   ============================================================ */
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap-md); }
.service-card {
  background: #fff; border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow); border: 1px solid var(--border);
  display: flex; flex-direction: column;
  transition: transform .25s, box-shadow .25s;
}
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.service-card-top { padding: var(--gap-md); }
.service-icon { font-size: 2rem; margin-bottom: var(--gap-sm); }
.service-card h3 { margin-bottom: var(--gap-xs); font-size: 1.1rem; }
.service-card p { font-size: .9rem; }
.service-card-footer {
  margin-top: auto; padding: var(--gap-md);
  border-top: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.service-price .price-base { font-size: .8rem; color: var(--text-muted); text-decoration: line-through; }
.service-price .price-promo { font-size: 1.3rem; font-weight: 800; color: var(--accent); }
.service-badge {
  font-size: .72rem; font-weight: 700; letter-spacing: .06em;
  background: var(--accent); color: #fff;
  padding: 3px 10px; border-radius: 100px;
}

/* ============================================================
   PRICING TABLE
   ============================================================ */
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap-md); }
.pricing-card {
  background: #fff; border: 2px solid var(--border); border-radius: var(--radius-lg);
  padding: var(--gap-lg) var(--gap-md); display: flex; flex-direction: column;
  position: relative; overflow: hidden;
  transition: transform .25s, box-shadow .25s;
}
.pricing-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.pricing-card.featured { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(37,99,235,.15); }
.pricing-card-badge {
  position: absolute; top: 16px; right: -28px;
  background: var(--accent); color: #fff;
  font-size: .72rem; font-weight: 700; letter-spacing: .08em;
  padding: 4px 40px; transform: rotate(45deg);
}
.pricing-icon { font-size: 2.5rem; margin-bottom: var(--gap-sm); }
.pricing-card h3 { font-size: 1.15rem; margin-bottom: var(--gap-xs); }
.pricing-card > p { font-size: .88rem; margin-bottom: var(--gap-md); }
.pricing-price { margin-bottom: var(--gap-md); }
.pricing-price .price-strike { font-size: .9rem; color: var(--text-muted); text-decoration: line-through; }
.pricing-price .price-main { font-size: 2.8rem; font-weight: 800; color: var(--primary); line-height: 1; }
.pricing-price .price-label { font-size: .8rem; color: var(--text-muted); }
.pricing-promo { display: inline-block; font-size: .72rem; font-weight: 700; background: #FEF3C7; color: #92400E; padding: 2px 10px; border-radius: 100px; margin-bottom: var(--gap-md); }
.pricing-includes { margin-bottom: var(--gap-lg); flex: 1; }
.pricing-includes li { display: flex; align-items: flex-start; gap: 8px; font-size: .88rem; color: var(--text); padding: 6px 0; border-bottom: 1px solid var(--border); }
.pricing-includes li::before { content: '✓'; color: var(--success); font-weight: 700; flex-shrink: 0; }
.pricing-card .btn { width: 100%; justify-content: center; }

/* ---- Frais déplacement ---- */
.deplacement-box {
  background: var(--primary); color: #fff;
  border-radius: var(--radius-lg); padding: var(--gap-lg);
  display: grid; grid-template-columns: 1fr 1fr; gap: var(--gap-lg);
  align-items: center; margin-top: var(--gap-xl);
}
.deplacement-box h3 { color: #fff; font-size: 1.4rem; margin-bottom: var(--gap-sm); }
.deplacement-box p { color: rgba(255,255,255,.7); }
.deplacement-details { display: flex; flex-direction: column; gap: var(--gap-sm); }
.dep-item { background: rgba(255,255,255,.1); border-radius: var(--radius); padding: var(--gap-md); }
.dep-item strong { display: block; color: #93C5FD; font-size: 1.1rem; }
.dep-item span { font-size: .85rem; color: rgba(255,255,255,.7); }

/* ============================================================
   GALERIE
   ============================================================ */
.gallery-filters { display: flex; gap: var(--gap-sm); flex-wrap: wrap; margin-bottom: var(--gap-lg); }
.filter-btn {
  padding: 8px 20px; border-radius: 100px; font-size: .88rem; font-weight: 500;
  background: var(--bg-alt); color: var(--text-muted); border: 1px solid var(--border);
  transition: all .2s;
}
.filter-btn.active, .filter-btn:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
.gallery-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap-sm); }
.gallery-item { position: relative; overflow: hidden; border-radius: var(--radius); aspect-ratio: 4/3; cursor: pointer; }
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.gallery-item:hover img { transform: scale(1.05); }
.gallery-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(10,22,40,.8) 0%, transparent 60%);
  opacity: 0; transition: opacity .3s;
  display: flex; align-items: flex-end; padding: var(--gap-md);
}
.gallery-item:hover .gallery-overlay { opacity: 1; }
.gallery-overlay span { color: #fff; font-size: .88rem; font-weight: 600; }

/* ============================================================
   FAQ
   ============================================================ */
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: var(--gap-sm); }
.faq-item { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.faq-question {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--gap-md); cursor: pointer; font-weight: 600;
  color: var(--primary); gap: var(--gap-sm);
  transition: background .2s;
}
.faq-question:hover { background: var(--bg-alt); }
.faq-question .faq-icon { font-size: 1.2rem; flex-shrink: 0; transition: transform .3s; color: var(--accent); }
.faq-item.open .faq-question .faq-icon { transform: rotate(45deg); }
.faq-answer { padding: 0 var(--gap-md); max-height: 0; overflow: hidden; transition: max-height .35s ease, padding .35s; }
.faq-item.open .faq-answer { max-height: 300px; padding: 0 var(--gap-md) var(--gap-md); }
.faq-answer p { font-size: .9rem; }

/* ============================================================
   CONTACT FORM
   ============================================================ */
.contact-grid { display: grid; grid-template-columns: 1fr 380px; gap: var(--gap-xl); align-items: start; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--gap-md); }
.form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: var(--gap-md); }
.form-group label { font-size: .85rem; font-weight: 600; color: var(--primary); }
.form-group input,
.form-group textarea,
.form-group select {
  padding: 12px 16px; border-radius: var(--radius); border: 1.5px solid var(--border);
  font-size: 16px; color: var(--text); background: #fff;
  transition: border-color .2s, box-shadow .2s; outline: none;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(37,99,235,.12); }
.form-group textarea { resize: vertical; min-height: 120px; }
.form-submit { width: 100%; justify-content: center; }

.contact-info { display: flex; flex-direction: column; gap: var(--gap-md); }
.contact-card {
  background: var(--bg-alt); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: var(--gap-md);
}
.contact-card h4 { font-size: .95rem; margin-bottom: var(--gap-xs); color: var(--primary); }
.contact-card p, .contact-card a { font-size: .9rem; }
.contact-card a:hover { color: var(--accent); }
.zone-card {
  background: var(--primary); color: #fff; border-radius: var(--radius-lg);
  padding: var(--gap-md);
}
.zone-card h4 { color: #93C5FD; margin-bottom: var(--gap-sm); }
.zone-card p { color: rgba(255,255,255,.75); font-size: .88rem; }
.zone-detail { display: flex; align-items: center; gap: 10px; margin-top: var(--gap-sm); }
.zone-badge { background: rgba(255,255,255,.15); padding: 6px 14px; border-radius: 8px; font-size: .82rem; color: #fff; }

/* ============================================================
   CTA SECTION
   ============================================================ */
.cta-section {
  background: linear-gradient(135deg, var(--accent) 0%, #1D4ED8 100%);
  color: #fff; text-align: center; padding: var(--gap-2xl) 0;
}
.cta-section h2 { color: #fff; margin-bottom: var(--gap-sm); }
.cta-section p { color: rgba(255,255,255,.85); font-size: 1.1rem; margin-bottom: var(--gap-lg); max-width: 560px; margin-left: auto; margin-right: auto; }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer { background: var(--bg-dark); color: #fff; padding: var(--gap-2xl) 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: var(--gap-xl); margin-bottom: var(--gap-xl); }
.footer-brand .logo { margin-bottom: var(--gap-sm); }
.footer-brand .logo-text { color: #fff; }
.footer-brand p { color: rgba(255,255,255,.5); font-size: .88rem; margin-bottom: var(--gap-sm); }
.footer-badges { display: flex; gap: var(--gap-xs); flex-wrap: wrap; }
.badge-cert { font-size: .75rem; padding: 4px 10px; border-radius: 100px; background: rgba(255,255,255,.1); color: rgba(255,255,255,.7); }
.footer-col h4 { color: rgba(255,255,255,.5); font-size: .75rem; letter-spacing: .1em; text-transform: uppercase; margin-bottom: var(--gap-md); }
.footer-col li { margin-bottom: 10px; }
.footer-col a { color: rgba(255,255,255,.6); font-size: .88rem; transition: color .2s; }
.footer-col a:hover { color: #fff; }
.footer-col li[style] { font-size: .88rem; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1); padding: var(--gap-md) 0;
  display: flex; align-items: center; justify-content: space-between;
  font-size: .82rem; color: rgba(255,255,255,.4);
}
.footer-socials { display: flex; gap: var(--gap-sm); }
.footer-socials a { color: rgba(255,255,255,.4); transition: color .2s; }
.footer-socials a:hover { color: #fff; }

/* ============================================================
   RESPONSIVE MOBILE
   ============================================================ */
@media (max-width: 1024px) {
  .pricing-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  :root { --gap-2xl: 60px; --gap-xl: 40px; }

  /* Header mobile */
  .burger { display: flex; }
  .nav-links {
    display: none; flex-direction: column; align-items: flex-start;
    position: fixed; top: var(--header-h); left: 0; right: 0; bottom: 0;
    background: rgba(255,255,255,.98); backdrop-filter: blur(16px);
    padding: var(--gap-lg) var(--gap-md); gap: var(--gap-md); overflow-y: auto;
    z-index: 99;
  }
  .nav-links.open { display: flex; }
  .nav-links a { font-size: 1.2rem; width: 100%; padding: var(--gap-sm) 0; border-bottom: 1px solid var(--border); }
  .nav-links .nav-cta { width: 100%; justify-content: center; text-align: center; margin-top: var(--gap-sm); }

  /* Hero */
  .hero { min-height: 100svh; }
  .hero-actions { flex-direction: column; align-items: center; }
  .hero-actions .btn { width: 100%; max-width: 320px; justify-content: center; }

  /* Stats */
  .stats-grid { grid-template-columns: repeat(2, 1fr); }

  /* Grilles */
  .cert-grid { grid-template-columns: repeat(2, 1fr); }
  .services-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }

  /* Contact */
  .contact-grid { grid-template-columns: 1fr; }
  .contact-info { order: -1; }
  .form-row { grid-template-columns: 1fr; }

  /* Déplacement */
  .deplacement-box { grid-template-columns: 1fr; }

  /* Footer */
  .footer-grid { grid-template-columns: 1fr; gap: var(--gap-lg); }
  .footer-bottom { flex-direction: column; gap: var(--gap-sm); text-align: center; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .cert-grid { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: 1fr; }
  .gallery-filters { gap: 6px; }
  .filter-btn { font-size: .8rem; padding: 6px 14px; }
}