/* ============================================================
   GROUPE VANTIS — styles.css
   Design: Premium dark · Gold · IA immobilier
   ============================================================ */

/* === VARIABLES === */
:root {
  --bg:        #07070e;
  --bg2:       #0f0f1a;
  --bg3:       #141428;
  --card:      #16162a;
  --gold:      #c9a84c;
  --gold-lt:   #e8c96a;
  --gold-dim:  rgba(201,168,76,0.15);
  --teal:      #00d4b4;
  --teal-dim:  rgba(0,212,180,0.12);
  --text:      #f0f0f5;
  --muted:     #7070a0;
  --border:    rgba(201,168,76,0.18);
  --border2:   rgba(255,255,255,0.06);
  --r:         12px;
  --r-lg:      20px;
  --r-xl:      32px;
  --shadow:    0 8px 40px rgba(0,0,0,0.5);
  --glow-g:    0 0 30px rgba(201,168,76,0.25);
  --glow-t:    0 0 30px rgba(0,212,180,0.2);
  --t:         0.3s ease;
  --font:      'Inter','Segoe UI',system-ui,sans-serif;
}

/* === RESET === */
*,*::before,*::after { box-sizing:border-box; margin:0; padding:0; }
html { scroll-behavior:smooth; font-size:16px; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}
img { max-width:100%; display:block; }
a { color:inherit; text-decoration:none; }
button { cursor:pointer; border:none; background:none; font-family:inherit; }
ul { list-style:none; }

/* === SCROLLBAR === */
::-webkit-scrollbar { width:6px; }
::-webkit-scrollbar-track { background:var(--bg2); }
::-webkit-scrollbar-thumb { background:var(--gold-dim); border-radius:3px; }

/* === UTILITIES === */
.container { max-width:1160px; margin:0 auto; padding:0 24px; }
.section { padding:96px 0; }
.section-sm { padding:64px 0; }
.text-gold { color:var(--gold); }
.text-teal { color:var(--teal); }
.text-muted { color:var(--muted); }
.text-center { text-align:center; }
.hidden { display:none !important; }

/* === TYPOGRAPHY === */
h1 { font-size:clamp(2rem,5vw,3.5rem); font-weight:800; line-height:1.15; letter-spacing:-0.02em; }
h2 { font-size:clamp(1.6rem,3.5vw,2.5rem); font-weight:700; line-height:1.2; letter-spacing:-0.015em; }
h3 { font-size:1.25rem; font-weight:600; }
h4 { font-size:1rem; font-weight:600; }
p { font-size:1rem; line-height:1.75; }

.section-title {
  font-size:clamp(1.6rem,3.5vw,2.5rem);
  font-weight:700;
  margin-bottom:16px;
}
.section-sub {
  color:var(--muted);
  font-size:1.05rem;
  max-width:600px;
  margin:0 auto 56px;
}

/* === LOI 25 BANNER === */
#loi25-banner {
  background: linear-gradient(90deg, rgba(201,168,76,0.1), rgba(0,212,180,0.08));
  border-bottom:1px solid var(--border);
  text-align:center;
  padding:10px 24px;
  font-size:0.8rem;
  color:var(--muted);
  position:sticky;
  top:0;
  z-index:200;
  backdrop-filter:blur(12px);
}
#loi25-banner a { color:var(--gold); text-decoration:underline; }
#loi25-banner .close-banner {
  position:absolute; right:16px; top:50%; transform:translateY(-50%);
  color:var(--muted); font-size:1rem; padding:4px; opacity:0.6;
}
#loi25-banner .close-banner:hover { opacity:1; }

/* === HEADER === */
header {
  position:sticky;
  top:37px;
  z-index:100;
  background: rgba(7,7,14,0.85);
  backdrop-filter:blur(20px);
  border-bottom:1px solid var(--border2);
  transition:box-shadow var(--t);
}
header.scrolled { box-shadow:0 4px 24px rgba(0,0,0,0.6); }
nav {
  display:flex;
  align-items:center;
  gap:32px;
  padding:16px 24px;
  max-width:1160px;
  margin:0 auto;
}
.logo {
  display:flex;
  align-items:center;
  gap:10px;
  font-size:1.2rem;
  font-weight:800;
  letter-spacing:-0.02em;
  color:var(--text);
  flex-shrink:0;
}
.logo-icon {
  width:36px; height:36px;
  background: linear-gradient(135deg, var(--gold), var(--teal));
  border-radius:8px;
  display:flex; align-items:center; justify-content:center;
  font-size:1rem;
  flex-shrink:0;
}
.logo span { color:var(--gold); }
.nav-links {
  display:flex;
  gap:28px;
  margin-left:auto;
}
.nav-links a {
  font-size:0.9rem;
  color:var(--muted);
  font-weight:500;
  transition:color var(--t);
}
.nav-links a:hover { color:var(--text); }
.nav-right {
  display:flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.lang-toggle {
  background: var(--bg3);
  border:1px solid var(--border);
  color:var(--gold);
  font-size:0.8rem;
  font-weight:700;
  padding:6px 14px;
  border-radius:99px;
  transition: all var(--t);
  letter-spacing:0.05em;
}
.lang-toggle:hover { background:var(--gold-dim); }
.btn-primary {
  background: linear-gradient(135deg, var(--gold), #a07830);
  color:#07070e;
  font-weight:700;
  font-size:0.9rem;
  padding:10px 24px;
  border-radius:99px;
  transition: all var(--t);
  display:inline-flex; align-items:center; gap:8px;
}
.btn-primary:hover { transform:translateY(-2px); box-shadow:var(--glow-g); }
.btn-secondary {
  background: transparent;
  border:1px solid var(--border);
  color:var(--text);
  font-weight:600;
  font-size:0.9rem;
  padding:10px 24px;
  border-radius:99px;
  transition: all var(--t);
  display:inline-flex; align-items:center; gap:8px;
}
.btn-secondary:hover { border-color:var(--gold); color:var(--gold); }
.btn-teal {
  background: linear-gradient(135deg, var(--teal), #008c78);
  color:#07070e;
  font-weight:700;
  font-size:0.9rem;
  padding:10px 24px;
  border-radius:99px;
  transition: all var(--t);
  display:inline-flex; align-items:center; gap:8px;
}
.btn-teal:hover { transform:translateY(-2px); box-shadow:var(--glow-t); }
.hamburger { display:none; flex-direction:column; gap:5px; padding:4px; }
.hamburger span { display:block; width:22px; height:2px; background:var(--text); border-radius:2px; transition:var(--t); }
.mobile-menu {
  display:none;
  flex-direction:column;
  gap:0;
  padding:0 24px 20px;
  border-top:1px solid var(--border2);
}
.mobile-menu a {
  display:block;
  padding:14px 0;
  color:var(--muted);
  font-weight:500;
  border-bottom:1px solid var(--border2);
}
.mobile-menu a:last-child { border-bottom:none; }
.mobile-menu .mobile-cta { margin-top:12px; text-align:center; }

/* === AI BADGE === */
.ai-badge {
  display:inline-flex;
  align-items:center;
  gap:8px;
  background: linear-gradient(135deg, rgba(0,212,180,0.12), rgba(201,168,76,0.1));
  border:1px solid rgba(0,212,180,0.3);
  border-radius:99px;
  padding:6px 16px;
  font-size:0.8rem;
  font-weight:600;
  color:var(--teal);
  letter-spacing:0.03em;
  margin-bottom:24px;
}
.ai-badge::before { content:'⚡'; }

/* === HERO === */
#hero {
  min-height:92vh;
  display:flex;
  align-items:center;
  position:relative;
  overflow:hidden;
  padding:100px 0 80px;
}
.hero-bg {
  position:absolute; inset:0; z-index:0;
  background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(201,168,76,0.08) 0%, transparent 70%),
              radial-gradient(ellipse 60% 50% at 80% 60%, rgba(0,212,180,0.05) 0%, transparent 60%);
}
.hero-grid {
  position:absolute; inset:0; z-index:0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size:60px 60px;
  mask-image:radial-gradient(ellipse 70% 70% at center, black 20%, transparent 100%);
}
.hero-inner {
  position:relative; z-index:1;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:64px;
  align-items:center;
  width:100%;
}
.hero-content {}
.hero-title { margin-bottom:20px; }
.hero-title em { color:var(--gold); font-style:normal; }
.hero-desc { color:var(--muted); font-size:1.1rem; margin-bottom:36px; max-width:500px; }
.hero-cta { display:flex; gap:16px; flex-wrap:wrap; }
.hero-stats {
  display:flex;
  gap:32px;
  margin-top:48px;
  padding-top:32px;
  border-top:1px solid var(--border2);
}
.hero-stat-num {
  font-size:1.8rem;
  font-weight:800;
  color:var(--gold);
  letter-spacing:-0.02em;
}
.hero-stat-label { font-size:0.8rem; color:var(--muted); }
.hero-visual {
  display:flex;
  flex-direction:column;
  gap:16px;
}
.hero-card {
  background: var(--card);
  border:1px solid var(--border2);
  border-radius:var(--r-lg);
  padding:24px;
  position:relative;
  overflow:hidden;
  transition: transform var(--t), border-color var(--t);
}
.hero-card:hover { transform:translateY(-4px); border-color:var(--border); }
.hero-card::before {
  content:''; position:absolute; inset:0;
  background:linear-gradient(135deg, rgba(201,168,76,0.04), transparent);
}
.hero-card-icon { font-size:1.5rem; margin-bottom:12px; }
.hero-card-title { font-weight:700; margin-bottom:6px; font-size:0.95rem; }
.hero-card-desc { font-size:0.85rem; color:var(--muted); }
.hero-card-badge {
  position:absolute; top:16px; right:16px;
  background:var(--teal-dim);
  border:1px solid rgba(0,212,180,0.3);
  color:var(--teal);
  font-size:0.7rem;
  font-weight:700;
  padding:3px 10px;
  border-radius:99px;
}
.hero-cards-row { display:grid; grid-template-columns:1fr 1fr; gap:16px; }

/* === TRUST BAR === */
#trust-bar {
  border-top:1px solid var(--border2);
  border-bottom:1px solid var(--border2);
  padding:28px 0;
  background:var(--bg2);
}
.trust-inner {
  display:flex;
  align-items:center;
  gap:40px;
  flex-wrap:wrap;
  justify-content:center;
}
.trust-item {
  display:flex;
  align-items:center;
  gap:10px;
  color:var(--muted);
  font-size:0.85rem;
  font-weight:500;
}
.trust-item-icon { font-size:1.1rem; }
.trust-divider { width:1px; height:20px; background:var(--border2); }

/* === HOW IT WORKS === */
#comment-ca-marche { background:var(--bg2); }
.steps-grid {
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  position:relative;
}
.steps-grid::before {
  content:'';
  position:absolute;
  top:32px; left:10%; right:10%;
  height:1px;
  background:linear-gradient(90deg, transparent, var(--border), transparent);
  z-index:0;
}
.step-card {
  background:var(--card);
  border:1px solid var(--border2);
  border-radius:var(--r-lg);
  padding:32px 24px;
  text-align:center;
  position:relative;
  z-index:1;
  transition: all var(--t);
}
.step-card:hover { border-color:var(--border); transform:translateY(-4px); box-shadow:var(--shadow); }
.step-num {
  width:52px; height:52px;
  background: linear-gradient(135deg, var(--gold), #a07830);
  border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  font-weight:800; font-size:1.1rem;
  color:#07070e;
  margin:0 auto 20px;
}
.step-icon { font-size:1.5rem; margin-bottom:12px; }
.step-title { font-weight:700; margin-bottom:8px; }
.step-desc { font-size:0.85rem; color:var(--muted); line-height:1.6; }

/* === SERVICES === */
#services {}
.services-grid {
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.service-card {
  background:var(--card);
  border:1px solid var(--border2);
  border-radius:var(--r-lg);
  padding:36px 28px;
  transition: all var(--t);
  position:relative;
  overflow:hidden;
}
.service-card::after {
  content:''; position:absolute;
  bottom:0; left:0; right:0; height:2px;
  background:linear-gradient(90deg, var(--gold), var(--teal));
  transform:scaleX(0); transform-origin:left;
  transition: transform var(--t);
}
.service-card:hover { border-color:var(--border); box-shadow:var(--shadow); }
.service-card:hover::after { transform:scaleX(1); }
.service-icon {
  width:56px; height:56px;
  background:var(--gold-dim);
  border:1px solid var(--border);
  border-radius:var(--r);
  display:flex; align-items:center; justify-content:center;
  font-size:1.5rem;
  margin-bottom:20px;
}
.service-title { font-weight:700; margin-bottom:10px; }
.service-desc { font-size:0.9rem; color:var(--muted); margin-bottom:20px; }
.service-features { display:flex; flex-direction:column; gap:8px; }
.feature-item {
  display:flex; align-items:center; gap:10px;
  font-size:0.85rem; color:var(--muted);
}
.feature-item::before { content:'✓'; color:var(--teal); font-weight:700; flex-shrink:0; }

/* === PRICING === */
#tarifs { background:var(--bg2); }
.pricing-grid {
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  align-items:start;
}
.pricing-card {
  background:var(--card);
  border:1px solid var(--border2);
  border-radius:var(--r-lg);
  padding:36px 28px;
  transition: all var(--t);
  position:relative;
  overflow:hidden;
}
.pricing-card.featured {
  border-color:var(--gold);
  background: linear-gradient(180deg, rgba(201,168,76,0.06), var(--card));
  box-shadow: var(--glow-g);
  transform:scale(1.04);
}
.pricing-badge {
  position:absolute; top:0; left:50%; transform:translateX(-50%);
  background:linear-gradient(135deg, var(--gold), #a07830);
  color:#07070e;
  font-size:0.7rem; font-weight:800;
  padding:5px 18px;
  border-radius:0 0 10px 10px;
  letter-spacing:0.08em;
  white-space:nowrap;
}
.pricing-type {
  font-size:0.8rem; font-weight:700;
  color:var(--muted);
  letter-spacing:0.08em;
  text-transform:uppercase;
  margin-bottom:12px;
}
.pricing-price {
  display:flex; align-items:baseline; gap:4px;
  margin-bottom:8px;
}
.price-amount { font-size:3rem; font-weight:800; color:var(--text); letter-spacing:-0.03em; }
.price-currency { font-size:1.2rem; font-weight:700; color:var(--gold); margin-top:12px; }
.price-period { font-size:0.9rem; color:var(--muted); margin-left:4px; }
.pricing-note { font-size:0.8rem; color:var(--muted); margin-bottom:28px; }
.pricing-divider { border:none; border-top:1px solid var(--border2); margin:24px 0; }
.pricing-features { display:flex; flex-direction:column; gap:12px; margin-bottom:32px; }
.pricing-feature {
  display:flex; align-items:flex-start; gap:10px;
  font-size:0.88rem; color:var(--muted);
}
.pricing-feature .check { color:var(--teal); font-weight:700; flex-shrink:0; margin-top:1px; }
.pricing-cta { display:block; width:100%; text-align:center; padding:14px; }

/* === QR CODE GENERATOR === */
#qr-generator {}
.qr-inner {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:64px;
  align-items:center;
}
.qr-content {}
.qr-tool {
  background:var(--card);
  border:1px solid var(--border2);
  border-radius:var(--r-xl);
  padding:40px;
}
.qr-tool h3 { margin-bottom:24px; }
.qr-input-group { display:flex; gap:12px; margin-bottom:24px; flex-wrap:wrap; }
.qr-input {
  flex:1;
  background:var(--bg3);
  border:1px solid var(--border2);
  border-radius:var(--r);
  padding:12px 18px;
  color:var(--text);
  font-size:0.9rem;
  font-family:inherit;
  min-width:200px;
  transition: border-color var(--t);
}
.qr-input:focus { outline:none; border-color:var(--gold); }
.qr-input::placeholder { color:var(--muted); }
.qr-output {
  background:var(--bg3);
  border:1px solid var(--border2);
  border-radius:var(--r-lg);
  padding:32px;
  text-align:center;
  min-height:200px;
  display:flex; align-items:center; justify-content:center;
  flex-direction:column; gap:16px;
}
.qr-placeholder {
  display:flex; flex-direction:column; align-items:center; gap:12px;
  color:var(--muted);
}
.qr-placeholder-icon { font-size:3rem; opacity:0.3; }
.qr-placeholder-text { font-size:0.85rem; }
#qr-code canvas, #qr-code img { border-radius:8px; }
.qr-download {
  display:none;
  gap:12px;
  justify-content:center;
  margin-top:16px;
}
.qr-download.visible { display:flex; }
.qr-note { font-size:0.75rem; color:var(--muted); text-align:center; margin-top:12px; }

/* === DEMO CTA === */
#demo-cta {
  background: linear-gradient(135deg, rgba(201,168,76,0.08), rgba(0,212,180,0.05));
  border-top:1px solid var(--border2);
  border-bottom:1px solid var(--border2);
}
.demo-cta-inner {
  text-align:center;
  max-width:700px;
  margin:0 auto;
}
.demo-cta-inner h2 { margin-bottom:16px; }
.demo-cta-inner p { color:var(--muted); margin-bottom:36px; }
.demo-cta-btns { display:flex; gap:16px; justify-content:center; flex-wrap:wrap; }

/* === CONTACT === */
#contact { background:var(--bg2); }
.contact-inner {
  display:grid;
  grid-template-columns:1fr 1.4fr;
  gap:64px;
  align-items:start;
}
.contact-info {}
.contact-info h2 { margin-bottom:16px; }
.contact-info p { color:var(--muted); margin-bottom:36px; }
.contact-details { display:flex; flex-direction:column; gap:20px; }
.contact-detail {
  display:flex; align-items:center; gap:14px;
}
.contact-detail-icon {
  width:44px; height:44px;
  background:var(--gold-dim);
  border:1px solid var(--border);
  border-radius:10px;
  display:flex; align-items:center; justify-content:center;
  font-size:1.1rem;
  flex-shrink:0;
}
.contact-detail-label { font-size:0.8rem; color:var(--muted); }
.contact-detail-value { font-weight:600; font-size:0.95rem; }
.contact-form {
  background:var(--card);
  border:1px solid var(--border2);
  border-radius:var(--r-xl);
  padding:40px;
}
.form-row { display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.form-group { display:flex; flex-direction:column; gap:8px; margin-bottom:20px; }
.form-group label {
  font-size:0.82rem;
  font-weight:600;
  color:var(--muted);
  text-transform:uppercase;
  letter-spacing:0.05em;
}
.form-group input,
.form-group select,
.form-group textarea {
  background:var(--bg3);
  border:1px solid var(--border2);
  border-radius:var(--r);
  padding:13px 16px;
  color:var(--text);
  font-size:0.9rem;
  font-family:inherit;
  transition: border-color var(--t);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline:none;
  border-color:var(--gold);
}
.form-group select { appearance:none; cursor:pointer; }
.form-group textarea { resize:vertical; min-height:120px; }
.form-consent {
  display:flex; align-items:flex-start; gap:12px;
  margin-bottom:24px;
  font-size:0.82rem;
  color:var(--muted);
  cursor:pointer;
}
.form-consent input[type=checkbox] { flex-shrink:0; margin-top:2px; accent-color:var(--gold); }
.form-consent a { color:var(--gold); }
.form-submit { width:100%; padding:15px; font-size:1rem; font-weight:700; border-radius:var(--r); }
.form-success {
  display:none;
  background:var(--teal-dim);
  border:1px solid rgba(0,212,180,0.3);
  border-radius:var(--r);
  padding:20px;
  text-align:center;
  color:var(--teal);
  font-weight:600;
  margin-top:20px;
}

/* === FOOTER === */
footer {
  background:var(--bg2);
  border-top:1px solid var(--border2);
  padding:64px 0 32px;
}
.footer-grid {
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr;
  gap:48px;
  margin-bottom:56px;
}
.footer-brand .logo { margin-bottom:16px; }
.footer-brand p { font-size:0.88rem; color:var(--muted); max-width:280px; line-height:1.7; }
.footer-col h4 {
  font-size:0.8rem;
  font-weight:700;
  text-transform:uppercase;
  letter-spacing:0.08em;
  color:var(--muted);
  margin-bottom:20px;
}
.footer-col ul { display:flex; flex-direction:column; gap:12px; }
.footer-col ul a { font-size:0.88rem; color:var(--muted); transition:color var(--t); }
.footer-col ul a:hover { color:var(--text); }
.footer-bottom {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding-top:32px;
  border-top:1px solid var(--border2);
}
.footer-bottom-left p { font-size:0.82rem; color:var(--muted); }
.footer-ai-mention {
  display:inline-flex; align-items:center; gap:8px;
  background:var(--teal-dim);
  border:1px solid rgba(0,212,180,0.2);
  border-radius:99px;
  padding:5px 14px;
  font-size:0.75rem;
  color:var(--teal);
  font-weight:600;
}
.footer-ai-mention::before { content:'🤖'; }
.footer-links-bottom { display:flex; gap:20px; }
.footer-links-bottom a { font-size:0.82rem; color:var(--muted); transition:color var(--t); }
.footer-links-bottom a:hover { color:var(--gold); }

/* === SCROLL ANIMATIONS === */
.fade-up {
  opacity:0;
  transform:translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-up.visible {
  opacity:1;
  transform:translateY(0);
}
.fade-up.delay-1 { transition-delay:0.1s; }
.fade-up.delay-2 { transition-delay:0.2s; }
.fade-up.delay-3 { transition-delay:0.3s; }
.fade-up.delay-4 { transition-delay:0.4s; }

/* === FLOATING PARTICLES (CSS only) === */
@keyframes float {
  0%,100% { transform:translateY(0); }
  50% { transform:translateY(-12px); }
}
.float { animation:float 4s ease-in-out infinite; }
.float-delay { animation:float 4s ease-in-out 1.5s infinite; }

/* === TOAST === */
#toast {
  position:fixed; bottom:32px; right:32px; z-index:9999;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--r);
  padding:16px 24px;
  font-size:0.9rem;
  font-weight:600;
  box-shadow:var(--shadow);
  transform:translateY(100px);
  opacity:0;
  transition: all var(--t);
  pointer-events:none;
}
#toast.show { transform:translateY(0); opacity:1; }
#toast.success { border-color:rgba(0,212,180,0.5); color:var(--teal); }
#toast.error { border-color:rgba(255,80,80,0.4); color:#ff6060; }

/* === RESPONSIVE === */
@media (max-width:1024px) {
  .hero-inner { grid-template-columns:1fr; gap:48px; }
  .hero-visual { order:-1; }
  .steps-grid { grid-template-columns:repeat(2,1fr); }
  .steps-grid::before { display:none; }
  .services-grid { grid-template-columns:repeat(2,1fr); }
  .pricing-grid { grid-template-columns:1fr; max-width:480px; margin:0 auto; }
  .pricing-card.featured { transform:scale(1); }
  .qr-inner { grid-template-columns:1fr; }
  .contact-inner { grid-template-columns:1fr; }
  .footer-grid { grid-template-columns:1fr 1fr; }
}

@media (max-width:768px) {
  .section { padding:64px 0; }

  /* Navigation mobile */
  .nav-links { display:none; }
  .nav-right .btn-primary { display:none; }
  .hamburger { display:flex; margin-left:auto; }
  .mobile-menu { display:none; }
  .mobile-menu.open { display:flex; }

  /* Grilles */
  .hero-cards-row { grid-template-columns:1fr; }
  .services-grid { grid-template-columns:1fr; }
  .steps-grid { grid-template-columns:1fr; }
  .form-row { grid-template-columns:1fr; }
  .footer-grid { grid-template-columns:1fr; }
  .footer-bottom { flex-direction:column; text-align:center; }
  .footer-links-bottom { justify-content:center; }

  /* Hero */
  .hero-stats { gap:20px; flex-wrap:wrap; }
  .trust-divider { display:none; }

  /* Touch targets — minimum 44px pour tous les éléments interactifs */
  .btn-primary,
  .btn-secondary,
  .btn-teal { min-height:48px; padding:12px 24px; font-size:1rem; }
  .lang-toggle { min-height:40px; padding:8px 16px; }

  /* Formulaire */
  .form-group input,
  .form-group select,
  .form-group textarea { min-height:48px; font-size:1rem; padding:13px 16px; }
  .form-group select { padding-right:32px; }

  /* QR */
  .qr-input { min-height:48px; font-size:1rem; }
  #qr-btn { min-height:48px; }

  /* Pricing — une colonne bien lisible */
  .pricing-card { padding:28px 20px; }
  .price-amount { font-size:2.5rem; }
}

@media (max-width:480px) {
  /* Typographie */
  h1 { font-size:1.85rem; }
  h2 { font-size:1.5rem; }
  p { font-size:0.95rem; }

  /* Layout */
  .container { padding:0 16px; }
  nav { padding:14px 16px; gap:12px; }
  .section { padding:48px 0; }
  .section-sm { padding:40px 0; }

  /* Boutons empilés */
  .hero-cta { flex-direction:column; align-items:stretch; }
  .hero-cta .btn-primary,
  .hero-cta .btn-secondary { justify-content:center; }
  .demo-cta-btns { flex-direction:column; align-items:center; }

  /* QR generator */
  .qr-input-group { flex-direction:column; }
  .qr-tool { padding:24px 16px; }
  .qr-output { padding:24px 16px; }

  /* Contact form */
  .contact-form { padding:24px 16px; }

  /* Footer */
  .footer-ai-mention { margin:8px auto; }

  /* Trust bar — défilement horizontal si trop long */
  .trust-inner { justify-content:flex-start; overflow-x:auto; padding:0 16px; flex-wrap:nowrap; }
  .trust-inner { scrollbar-width:none; }
  .trust-inner::-webkit-scrollbar { display:none; }

  /* Step cards */
  .step-card { padding:24px 16px; }

  /* Hero stat — compact */
  .hero-stat-num { font-size:1.5rem; }

  /* Loi 25 banner */
  #loi25-banner { font-size:0.72rem; padding:8px 40px 8px 16px; }
}

/* === TOUCH OPTIMISATIONS GLOBALES === */
@media (hover:none) and (pointer:coarse) {
  /* Appareils tactiles — augmenter les zones de clic */
  a, button { -webkit-tap-highlight-color: rgba(201,168,76,0.15); }
  .nav-links a { padding:8px 4px; }
  .mobile-menu a { min-height:52px; display:flex; align-items:center; }
  .quick-reply { min-height:40px; }
  .chat-send { width:48px; height:48px; }

  /* Désactiver les effets hover coûteux sur mobile */
  .hero-card:hover { transform:none; }
  .step-card:hover { transform:none; }
  .btn-primary:hover { transform:none; }
  .btn-teal:hover { transform:none; }
}

/* === OPTIMISATION VITESSE CHARGEMENT === */
@media (prefers-reduced-motion:reduce) {
  .fade-up { opacity:1; transform:none; transition:none; }
  .float, .float-delay { animation:none; }
  .typing-dots span { animation:none; opacity:0.6; }
  .avatar-label::before { animation:none; }
}