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

:root {
  --bg: #161725;
  --bg2: #1c1d2e;
  --bg3: #22233a;
  --accent: #ffef95;
  --accent2: #fff5b8;
  --text: #e8e8e8;
  --text-muted: #888;
  --border: #2e2f47;
  --btn: #ffef95;
  --btn-hover: #fff5b8;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
  max-width: 100vw;
}

.btn-cta { color: #161725 !important; }

/* ── NAV ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 40px;
  background: rgba(22,23,37,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-login {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-muted);
  text-decoration: none;
  border: 1px solid var(--border);
  padding: 8px 18px;
  transition: color 0.2s, border-color 0.2s;
}

.nav-login:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}

.logo-box {
  display: flex;
  align-items: center;
}

.logo-box img {
  height: 44px;
  width: auto;
  display: block;
}

.logo-text {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 2px;
  text-transform: uppercase;
}

/* ── HERO ── */
.hero {
  padding: 120px 40px 80px;
  text-align: center;
  background: linear-gradient(180deg, #161725 0%, #1c1d2e 100%);
}

.hero-badge {
  display: inline-block;
  background: rgba(255,239,149,0.12);
  border: 1px solid rgba(255,239,149,0.35);
  color: var(--accent);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 2px;
  margin-bottom: 28px;
}

.hero h1 {
  font-size: clamp(28px, 4vw, 52px);
  font-weight: 800;
  line-height: 1.15;
  max-width: 780px;
  margin: 0 auto 16px;
  letter-spacing: -0.5px;
}

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

.hero-sub {
  font-size: 16px;
  color: var(--text-muted);
  max-width: 540px;
  margin: 0 auto 48px;
}

.stats-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 40px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.stat {
  text-align: center;
}

.stat-num {
  font-size: 32px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
}

.stat-label {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-top: 4px;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}

/* ── VIDEO ── */
.video-wrap {
  max-width: 1100px;
  margin: 0 auto;
  border-radius: 4px;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: 0 40px 100px rgba(0,0,0,0.6);
  position: relative;
}

.video-wrap iframe {
  display: block;
  width: 100%;
  aspect-ratio: 16/9;
  border: none;
}

/* ── SECTION WRAPPER ── */
section {
  padding: 100px 40px;
  max-width: 1200px;
  margin: 0 auto;
}

.section-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(24px, 3vw, 40px);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 15px;
  color: var(--text-muted);
  max-width: 560px;
  margin-bottom: 60px;
}

/* ── AVANT/APRÈS HORIZONTAL ── */
.avap-section {
  background: var(--bg2);
  padding: 100px 0;
}

.avap-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
}

.avap-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 60px;
}

.avap-card {
  border-radius: 4px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg3);
  position: relative;
}

.avap-card img {
  width: 100%;
  display: block;
  object-fit: cover;
}

/* ── SYSTÈME FUSIONNÉ ── */
.systeme-section {
  background: var(--bg);
  padding: 100px 0;
}

.systeme-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
}

.steps-row {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: stretch;
  gap: 0;
  margin-top: 60px;
}

.step-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 32px 28px;
  position: relative;
}

.step-num {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 20px;
  flex-shrink: 0;
}

.step-card h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 12px;
}

.step-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.75;
}

.step-connector {
  display: flex;
  align-items: center;
  padding: 0 4px;
  margin-top: 22px;
}

.step-connector-line {
  width: 32px;
  height: 2px;
  background: var(--accent);
  opacity: 0.4;
  position: relative;
}

.step-connector-line::after {
  content: '';
  position: absolute;
  right: -6px;
  top: 50%;
  transform: translateY(-50%);
  width: 0;
  height: 0;
  border-left: 7px solid var(--accent);
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
  opacity: 1;
}

.systeme-images {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 40px;
}

.sys-img-col {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.sys-img-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
}

.sys-img-card img {
  width: 100%;
  display: block;
  object-fit: cover;
}

/* ── LEZIG AVANT/APRÈS ── */
.lezig-section {
  background: var(--bg);
  padding: 100px 0;
}

.lezig-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
}

.lezig-img {
  margin-top: 48px;
  border-radius: 4px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.lezig-img img {
  width: 100%;
  display: block;
}

/* ── FAQ ── */
.faq-section {
  background: var(--bg2);
  padding: 100px 0;
}

.faq-inner {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 40px;
}

.faq-item {
  border-bottom: 1px solid var(--border);
}

.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 0;
  cursor: pointer;
  font-size: 15px;
  font-weight: 500;
  gap: 16px;
  user-select: none;
}

.faq-q:hover { color: var(--accent); }

.faq-icon {
  width: 24px;
  height: 24px;
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 16px;
  color: var(--accent);
  transition: transform 0.25s;
}

.faq-item.open .faq-icon { transform: rotate(45deg); }

.faq-a {
  display: none;
  padding: 0 0 20px;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
}

.faq-item.open .faq-a { display: block; }

/* ── CTA BUTTON ── */
.btn-cta {
  display: inline-block;
  background: var(--btn);
  color: #0d0d0d;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 16px 40px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  clip-path: polygon(0 0, 95% 0, 100% 20%, 100% 100%, 5% 100%, 0 80%);
  transition: background 0.2s, transform 0.2s;
}

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

.cta-wrap {
  text-align: center;
  padding: 60px 40px;
  background: var(--bg);
}

.cta-wrap .btn-cta { font-size: 14px; padding: 18px 52px; }

.cta-label {
  display: block;
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 14px;
  letter-spacing: 1px;
}

/* ── FOOTER ── */
footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 32px 40px;
  text-align: center;
  font-size: 12px;
  color: var(--text-muted);
}

/* ── DIVIDER ── */
.full-divider {
  width: 100%;
  height: 1px;
  background: var(--border);
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  nav { padding: 14px 20px; }
  section, .avap-inner, .systeme-inner, .lezig-inner, .faq-inner { padding-left: 20px; padding-right: 20px; }
  .avap-grid { grid-template-columns: 1fr; }
  .steps-row { grid-template-columns: 1fr; }
  .step-connector { display: none; }
  .step-card { margin-bottom: 16px; }
  .systeme-images { grid-template-columns: 1fr; }
  .stats-row { gap: 20px; }
  .cta-wrap { padding: 40px 20px; }
}