/* ============================================================
   FluviAtlas — Styles spécifiques (palette bleu électrique)
   ============================================================ */

/* ── Page body ────────────────────────────────────────────── */
.page-fluviatlas {
  background: var(--fa-bg);
  color: var(--fa-text);
}
.page-fluviatlas .navbar {
  background: rgba(7, 11, 20, 0.9);
  border-bottom-color: var(--fa-border);
}
.page-fluviatlas .nav-back { border-color: var(--fa-border); color: var(--fa-muted); }
.page-fluviatlas .nav-back:hover { color: var(--fa-text); border-color: var(--fa-primary); }
.page-fluviatlas .nav-links a { color: var(--fa-muted); }
.page-fluviatlas .nav-links a:hover { color: var(--fa-text); }
.page-fluviatlas .nav-cta {
  padding: 8px 18px;
  border-radius: var(--r-full);
  font-size: 0.85rem;
  font-weight: 600;
  background: var(--fa-gradient);
  color: #fff;
  transition: opacity var(--t-fast), transform var(--t-fast);
}
.page-fluviatlas .nav-cta:hover { opacity: 0.88; transform: translateY(-1px); }
.page-fluviatlas .footer {
  background: #040810;
  border-top-color: var(--fa-border);
}
.page-fluviatlas .footer-links a:hover { color: var(--fa-cyan); }

/* Gradient text */
.fa-gradient-text {
  background: var(--fa-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Section tag */
.page-fluviatlas .section-tag {
  background: var(--fa-surface);
  border: 1px solid var(--fa-border-l);
  color: var(--fa-cyan);
}
.page-fluviatlas .section-desc { color: var(--fa-muted); }
.page-fluviatlas .faq-item { border-bottom-color: var(--fa-border); }

/* ── Hero ─────────────────────────────────────────────────── */
.fa-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 120px 0 80px;
}
/* Les divs absolus du fond peindraient par-dessus le flow normal — on élève le container */
.fa-hero > .container {
  position: relative;
  z-index: 1;
}

/* Fond : silhouette de bassin versant + nuit océanique */
.fa-hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 60% 80% at 70% 50%, rgba(0,102,255,0.09) 0%, transparent 60%),
    radial-gradient(ellipse 40% 40% at 20% 80%, rgba(0,212,255,0.06) 0%, transparent 60%),
    linear-gradient(180deg, #070B14 0%, #06101e 60%, #04090f 100%);
}
.fa-hero-topo {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 55%;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 400' preserveAspectRatio='none'%3E%3Cpath d='M0,320 C80,280 160,200 240,240 C320,280 380,160 460,120 C540,80 600,160 680,120 C760,80 820,200 900,180 C980,160 1040,240 1120,200 C1200,160 1280,120 1360,160 L1440,180 L1440,400 L0,400 Z' fill='rgba(0,102,255,0.04)'/%3E%3Cpath d='M0,360 C100,320 200,260 300,280 C400,300 450,200 550,180 C650,160 700,240 800,220 C900,200 950,260 1050,240 C1150,220 1250,200 1360,220 L1440,240 L1440,400 L0,400 Z' fill='rgba(0,102,255,0.06)'/%3E%3C/svg%3E") no-repeat bottom center / cover;
  opacity: 0.6;
}
.fa-hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,102,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,102,255,0.05) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 40% 40%, black 0%, transparent 100%);
}
.fa-hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s8);
  align-items: center;
}
.fa-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: var(--r-full);
  background: var(--fa-surface);
  border: 1px solid var(--fa-border-l);
  color: var(--fa-cyan);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  margin-bottom: var(--s3);
}
.fa-hero-badge-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--fa-cyan);
  animation: pulse-blue 2s ease-in-out infinite;
}
@keyframes pulse-blue {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.55; transform: scale(0.8); }
}
.fa-hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.04em;
  margin-bottom: var(--s3);
}
.fa-hero-subtitle {
  font-size: 1.05rem;
  color: var(--fa-muted);
  line-height: 1.75;
  max-width: 500px;
  margin-bottom: var(--s5);
}
.fa-hero-actions { display: flex; gap: var(--s2); flex-wrap: wrap; margin-bottom: var(--s6); }
.fa-hero-stats {
  display: flex;
  gap: var(--s4);
  padding-top: var(--s4);
  border-top: 1px solid var(--fa-border);
}
.fa-stat-number {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--fa-primary);
  display: block;
}
.fa-stat-label { font-size: 0.78rem; color: var(--fa-muted); letter-spacing: 0.3px; }

/* BV preview (carte DEM stylisée) */
.fa-preview {
  background: rgba(0,102,255,0.05);
  border: 1px solid var(--fa-border);
  border-radius: var(--r-xl);
  overflow: hidden;
  box-shadow: 0 32px 80px rgba(0,0,0,0.5), 0 0 0 1px var(--fa-border);
}
.fa-preview-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--fa-border);
  background: rgba(0,102,255,0.07);
}
.fa-preview-dots { display: flex; gap: 6px; }
.fa-preview-dots span { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,0.1); }
.fa-preview-title { font-size: 0.8rem; font-weight: 600; color: var(--fa-muted); flex: 1; text-align: center; font-family: var(--font-mono); letter-spacing: 0.3px; }
.fa-preview-body { height: 340px; position: relative; overflow: hidden; background: #040c1e; }

/* DEM terrain viz */
.fa-dem-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 50% 60% at 55% 45%, rgba(0,102,255,0.18) 0%, transparent 60%),
    radial-gradient(ellipse 30% 30% at 30% 60%, rgba(0,212,255,0.08) 0%, transparent 50%);
}
.fa-dem-contours {
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 400 340'%3E%3Cg fill='none' stroke='rgba(0,102,255,0.2)' stroke-width='1'%3E%3Cellipse cx='200' cy='160' rx='180' ry='120'/%3E%3Cellipse cx='200' cy='160' rx='140' ry='90'/%3E%3Cellipse cx='200' cy='155' rx='100' ry='65'/%3E%3Cellipse cx='200' cy='150' rx='65' ry='42'/%3E%3Cellipse cx='200' cy='148' rx='35' ry='24'/%3E%3C/g%3E%3Cpath d='M60,200 Q100,140 140,120 Q180,100 210,90 Q240,80 260,110 Q280,140 260,180 Q240,200 200,210 Q160,220 120,210 Q80,200 60,200Z' fill='rgba(0,102,255,0.07)' stroke='rgba(0,102,255,0.3)' stroke-width='1.5'/%3E%3Cpath d='M55,195 C90,155 130,130 170,115 C210,100 250,108 270,135 C290,162 280,195 255,215 C230,235 190,240 155,230 C120,220 85,205 55,195Z' fill='none' stroke='rgba(0,212,255,0.35)' stroke-width='2' stroke-dasharray='6,3'/%3E%3Ccircle cx='220' cy='105' r='4' fill='%2300D4FF' opacity='0.8'/%3E%3Ccircle cx='220' cy='105' r='12' fill='none' stroke='%2300D4FF' stroke-width='1' opacity='0.4'/%3E%3Cpath d='M220,105 Q200,140 180,160 Q160,180 130,195' stroke='%2300D4FF' stroke-width='1.5' fill='none' stroke-linecap='round' opacity='0.5'/%3E%3C/svg%3E");
  background-size: cover;
}
.fa-dem-label {
  position: absolute;
  bottom: 12px; right: 12px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--fa-cyan);
  background: rgba(0,102,255,0.15);
  border: 1px solid var(--fa-border-l);
  padding: 4px 10px;
  border-radius: var(--r-sm);
  letter-spacing: 0.5px;
}

/* ── Features ─────────────────────────────────────────────── */
.fa-features { padding: var(--s16) 0; }
.fa-features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--s3);
}
.fa-feature-card {
  padding: var(--s4);
  border-radius: var(--r-lg);
  background: var(--fa-glass);
  border: 1px solid var(--fa-border);
  transition: transform var(--t-normal), border-color var(--t-normal), box-shadow var(--t-normal);
}
.fa-feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0,102,255,0.35);
  box-shadow: 0 12px 40px rgba(0,102,255,0.1);
}
.fa-feature-icon {
  width: 44px; height: 44px;
  border-radius: var(--r-md);
  background: var(--fa-surface);
  border: 1px solid var(--fa-border-l);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--fa-cyan);
  margin-bottom: var(--s3);
}
.fa-feature-card h3 { font-family: var(--font-display); font-size: 1rem; font-weight: 700; margin-bottom: 6px; color: var(--fa-text); }
.fa-feature-card p  { font-size: 0.87rem; color: var(--fa-muted); line-height: 1.65; }
.fa-feature-data {
  margin-top: var(--s2);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--fa-cyan);
  background: rgba(0,212,255,0.06);
  border: 1px solid rgba(0,212,255,0.12);
  padding: 3px 10px;
  border-radius: var(--r-full);
  display: inline-block;
}

/* ── Pricing ──────────────────────────────────────────────── */
.fa-pricing { padding: var(--s16) 0; background: rgba(0,102,255,0.02); }
.fa-pricing .pricing-card {
  background: var(--fa-glass);
  border-color: var(--fa-border);
}
.fa-pricing .pricing-card.featured {
  background: rgba(0,102,255,0.1);
  border-color: rgba(0,102,255,0.35);
  box-shadow: 0 0 40px rgba(0,102,255,0.12);
}
.fa-pricing .pricing-card:hover { box-shadow: 0 16px 48px rgba(0,102,255,0.12); }
.fa-pricing .pricing-badge { background: var(--fa-gradient); color: #fff; }
.fa-pricing .pricing-header h3 { color: var(--fa-text); }
.fa-pricing .price-amount { color: var(--fa-text); }
.fa-pricing .price-suffix { color: var(--fa-primary); font-size: 1.1rem; }
.fa-pricing .pricing-features li { color: var(--fa-text); }
.fa-pricing .pricing-features li svg { color: var(--fa-cyan); }
.fa-pricing .pricing-features li.off { color: var(--fa-muted); }
.fa-pricing .feature-tag { background: rgba(0,102,255,0.12); color: var(--fa-cyan); }
.fa-pricing-note {
  text-align: center;
  margin-top: var(--s6);
  font-size: 0.88rem;
  color: var(--fa-muted);
  padding: var(--s3) var(--s4);
  border-radius: var(--r-md);
  background: var(--fa-surface);
  border: 1px solid var(--fa-border-l);
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

/* ── Download ─────────────────────────────────────────────── */
.fa-download { padding: var(--s16) 0; }
.fa-download-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s8);
  align-items: center;
  padding: var(--s8);
  border-radius: var(--r-2xl);
  background: var(--fa-glass);
  border: 1px solid var(--fa-border);
}
.fa-download-info h2 { font-family: var(--font-display); font-size: 2rem; font-weight: 800; line-height: 1.2; margin-bottom: var(--s2); }
.fa-download-info p { font-size: 0.95rem; color: var(--fa-muted); line-height: 1.7; margin-bottom: var(--s4); }
.fa-download-specs { display: flex; flex-wrap: wrap; gap: var(--s3); margin-bottom: var(--s4); }
.fa-spec { display: flex; align-items: center; gap: 6px; font-size: 0.82rem; color: var(--fa-muted); }
.fa-spec svg { color: var(--fa-cyan); }
.fa-download-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}
.fa-download-visual img,
.fa-download-visual .fa-logo-svg {
  max-height: 160px;
  width: auto;
  filter: drop-shadow(0 0 40px rgba(0,102,255,0.4));
}

/* ── Steps (achat) ────────────────────────────────────────── */
.fa-activation { padding: var(--s16) 0; background: rgba(0,102,255,0.02); }
.fa-activation .step-number {
  background: var(--fa-surface);
  border: 1px solid var(--fa-border-l);
  color: var(--fa-cyan);
}
.fa-activation .step-card h3 { color: var(--fa-text); }

/* ── Contact ──────────────────────────────────────────────── */
.fa-contact { padding: var(--s16) 0; }
.fa-contact .contact-method svg { color: var(--fa-primary); }
.fa-contact .contact-method a  { color: var(--fa-cyan); }
.fa-contact .contact-form-wrapper { border-color: var(--fa-border); background: var(--fa-glass); }
.fa-contact .form-group input:focus,
.fa-contact .form-group select:focus,
.fa-contact .form-group textarea:focus {
  border-color: rgba(0,102,255,0.4);
  box-shadow: 0 0 0 3px rgba(0,102,255,0.08);
}
.fa-contact .form-group input,
.fa-contact .form-group select,
.fa-contact .form-group textarea {
  border-color: var(--fa-border);
  background: rgba(0,0,0,0.2);
  color: var(--fa-text);
}

/* ── FAQ ──────────────────────────────────────────────────── */
.fa-faq { padding: var(--s16) 0; background: rgba(0,102,255,0.02); }
.fa-faq .faq-question:hover { color: var(--fa-cyan); }

/* ── Buttons ──────────────────────────────────────────────── */
.btn-fa-primary {
  background: var(--fa-gradient);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 20px rgba(0,102,255,0.3);
}
.btn-fa-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0,102,255,0.45);
}
.btn-fa-outline {
  background: transparent;
  color: var(--fa-primary);
  border-color: var(--fa-border);
}
.btn-fa-outline:hover {
  background: var(--fa-surface);
  border-color: var(--fa-primary);
  color: var(--fa-cyan);
}
.btn-fa-ghost {
  background: transparent;
  color: var(--fa-muted);
  border-color: transparent;
}
.btn-fa-ghost:hover { color: var(--fa-text); background: var(--fa-surface); }

/* Modal FluviAtlas overrides */
.page-fluviatlas .modal { background: #060c1a; border-color: var(--fa-border); }
.page-fluviatlas .modal-recap { background: rgba(0,102,255,0.05); border-color: var(--fa-border-l); }
.page-fluviatlas .modal-recap-total .modal-total-amount { color: var(--fa-cyan); }
.page-fluviatlas .modal-close:hover { color: var(--fa-cyan); }

/* Responsive */
@media (max-width: 1024px) {
  .fa-features-grid { grid-template-columns: 1fr 1fr; }
  .fa-hero-inner { grid-template-columns: 1fr; gap: var(--s6); }
  .fa-preview { display: none; }
}
@media (max-width: 768px) {
  .fa-features-grid { grid-template-columns: 1fr; }
  .fa-download-card { grid-template-columns: 1fr; }
  .fa-download-visual { display: none; }
  .fa-hero-stats { flex-wrap: wrap; gap: var(--s3); }
  .fa-hero-actions { flex-direction: column; }
  .fa-hero-actions .btn { width: 100%; justify-content: center; }
}