/* ══ RESET & BASE ═══════════════════════════════════════════════ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --black: #0a0a0a;
  --white: #ffffff;
  --gray-50: #f9f9f9;
  --gray-100: #f0f0f0;
  --gray-300: #d0d0d0;
  --gray-500: #888888;
  --gray-700: #444444;
  --accent: #1A1A2E;
  --ink: #111111;

  /* Per-tier colors */
  --starter: #1A56FF;
  --premium: #FF5C5C;
  --elite: #9B59FF;

  --font-display: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;

  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 4px 24px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 48px rgba(0,0,0,0.14);
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ══ NAV ════════════════════════════════════════════════════════ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-100);
}
.nav-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--ink);
}
.logo-icon {
  font-size: 22px;
  color: var(--starter);
}
.logo-text {
  font-family: var(--font-display);
  font-size: 15px;
  letter-spacing: 0.08em;
  color: var(--ink);
}
.logo-text strong { font-weight: 800; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-links a {
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--gray-700);
  text-decoration: none;
  transition: color .2s;
}
.nav-links a:hover { color: var(--ink); }
.btn-nav {
  background: var(--ink) !important;
  color: var(--white) !important;
  padding: 8px 20px;
  border-radius: 100px;
  font-weight: 500 !important;
  transition: opacity .2s !important;
}
.btn-nav:hover { opacity: 0.8 !important; }

.nav-burger {
  display: none;
  background: none;
  border: none;
  font-size: 22px;
  cursor: pointer;
  color: var(--ink);
}
.nav-mobile {
  display: none;
  flex-direction: column;
  padding: 16px 24px;
  border-top: 1px solid var(--gray-100);
  gap: 16px;
}
.nav-mobile.open { display: flex; }
.nav-mobile a {
  font-size: 16px;
  color: var(--gray-700);
  text-decoration: none;
}
.btn-mobile {
  background: var(--ink);
  color: var(--white) !important;
  padding: 12px 20px;
  border-radius: 100px;
  text-align: center;
  font-weight: 500;
}

/* ══ HERO ═══════════════════════════════════════════════════════ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 100px 0 60px;
  overflow: hidden;
}
.hero-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(26,86,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(26,86,255,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 0%, black 30%, transparent 80%);
}
.hero::before {
  content: '';
  position: absolute;
  top: -200px; right: -200px;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(26,86,255,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -100px; left: -100px;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(155,89,255,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--gray-50);
  border: 1px solid var(--gray-100);
  border-radius: 100px;
  padding: 6px 16px;
  font-size: 13px;
  color: var(--gray-700);
  margin-bottom: 32px;
  animation: fadeUp .6s ease both;
}
.badge-dot {
  width: 7px; height: 7px;
  background: #22c55e;
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(44px, 7vw, 88px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--ink);
  margin-bottom: 24px;
  animation: fadeUp .6s .1s ease both;
}
.hero-title em {
  font-style: normal;
  color: var(--starter);
  position: relative;
}
.hero-title em::after {
  content: '';
  position: absolute;
  bottom: 4px; left: 0; right: 0;
  height: 4px;
  background: var(--starter);
  opacity: 0.25;
  border-radius: 2px;
}

.hero-sub {
  font-size: 18px;
  color: var(--gray-700);
  max-width: 560px;
  margin: 0 auto 40px;
  line-height: 1.65;
  animation: fadeUp .6s .2s ease both;
}
.hero-sub strong { color: var(--ink); }

.hero-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 56px;
  animation: fadeUp .6s .3s ease both;
}

.btn-primary {
  background: var(--ink);
  color: var(--white);
  padding: 15px 32px;
  border-radius: 100px;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: transform .2s, box-shadow .2s;
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(0,0,0,0.28);
}
.btn-ghost {
  color: var(--gray-700);
  font-size: 15px;
  text-decoration: none;
  padding: 15px 20px;
  border-radius: 100px;
  transition: color .2s;
}
.btn-ghost:hover { color: var(--ink); }

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  animation: fadeUp .6s .4s ease both;
  background: var(--gray-50);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-lg);
  padding: 20px 32px;
  max-width: 640px;
  margin: 0 auto;
}
.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0 28px;
}
.stat strong {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 800;
  color: var(--ink);
  line-height: 1;
}
.stat span {
  font-size: 12px;
  color: var(--gray-500);
  margin-top: 4px;
  white-space: nowrap;
}
.stat-sep {
  width: 1px;
  height: 40px;
  background: var(--gray-300);
}

.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 20px;
  color: var(--gray-500);
  animation: bounce 2s infinite;
}
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}

/* ══ ANIMATIONS ════════════════════════════════════════════════ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ══ SECTION BASE ══════════════════════════════════════════════ */
.section-label {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gray-500);
  margin-bottom: 12px;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin-bottom: 48px;
}

/* ══ CONCEPT ═══════════════════════════════════════════════════ */
.concept {
  padding: 100px 0;
  background: var(--gray-50);
  border-top: 1px solid var(--gray-100);
  border-bottom: 1px solid var(--gray-100);
}
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}
.step {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.step-num {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 800;
  color: var(--gray-100);
  line-height: 1;
}
.step-content h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--ink);
}
.step-content p {
  font-size: 15px;
  color: var(--gray-700);
  line-height: 1.65;
}

/* ══ PREUVES ════════════════════════════════════════════════════ */
.preuves {
  padding: 100px 0;
}
.preuves-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}
.preuve-card {
  background: var(--gray-50);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
  transition: transform .3s, box-shadow .3s;
}
.preuve-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.preuve-featured {
  background: var(--ink);
  border-color: var(--ink);
}
.preuve-featured .preuve-amount,
.preuve-featured .preuve-label,
.preuve-featured .preuve-badge { color: var(--white) !important; }
.preuve-featured .preuve-badge { background: rgba(255,255,255,0.15) !important; }

.preuve-icon { font-size: 32px; }
.preuve-amount {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 800;
  color: var(--ink);
}
.preuve-label {
  font-size: 13px;
  color: var(--gray-500);
}
.preuve-badge {
  background: rgba(34,197,94,0.1);
  color: #16a34a;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 100px;
}
.preuves-note {
  text-align: center;
  font-size: 13px;
  color: var(--gray-500);
}

/* ══ PRODUITS ═══════════════════════════════════════════════════ */
.produits {
  padding: 100px 0;
  background: var(--gray-50);
  border-top: 1px solid var(--gray-100);
}
.produits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 32px;
  align-items: start;
}
.produit-card {
  background: var(--white);
  border: 1.5px solid var(--gray-100);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  position: relative;
  transition: transform .3s, box-shadow .3s, border-color .3s;
}
.produit-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.produit-popular {
  border-color: var(--premium);
  box-shadow: 0 0 0 3px rgba(255,92,92,0.1);
}
.popular-badge {
  position: absolute;
  top: -14px; left: 50%;
  transform: translateX(-50%);
  background: var(--premium);
  color: var(--white);
  font-size: 12px;
  font-weight: 700;
  font-family: var(--font-display);
  padding: 5px 16px;
  border-radius: 100px;
  white-space: nowrap;
}

.produit-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}
.produit-tag {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
[data-tier="starter"] .produit-tag { color: var(--starter); }
[data-tier="premium"] .produit-tag { color: var(--premium); }
[data-tier="elite"] .produit-tag { color: var(--elite); }

.produit-niche {
  font-size: 12px;
  color: var(--gray-500);
  background: var(--gray-50);
  padding: 4px 10px;
  border-radius: 100px;
}

.produit-price {
  margin-bottom: 24px;
}
.price-main {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 800;
  color: var(--ink);
  line-height: 1;
}

.produit-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 24px;
  font-size: 14px;
  color: var(--gray-700);
}
.produit-features li { display: flex; align-items: flex-start; gap: 8px; }
.check {
  color: #22c55e;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}

.produit-margin {
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.margin-bar {
  flex: 1;
  height: 5px;
  background: var(--gray-100);
  border-radius: 3px;
  overflow: hidden;
}
.margin-fill {
  height: 100%;
  border-radius: 3px;
  background: var(--ink);
  transition: width .8s ease;
}
[data-tier="starter"] .margin-fill { background: var(--starter); }
[data-tier="premium"] .margin-fill { background: var(--premium); }
[data-tier="elite"] .margin-fill { background: var(--elite); }

.produit-margin span {
  font-size: 12px;
  color: var(--gray-500);
  white-space: nowrap;
}

.btn-buy {
  display: block;
  text-align: center;
  background: var(--ink);
  color: var(--white);
  padding: 14px;
  border-radius: var(--radius);
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: opacity .2s, transform .2s;
}
.btn-buy:hover { opacity: 0.85; transform: translateY(-1px); }
.btn-buy-featured {
  background: var(--premium);
}

/* ══ PACK TOTAL ════════════════════════════════════════════════ */
.pack-total {
  background: var(--ink);
  border-radius: var(--radius-lg);
  padding: 40px 40px;
  position: relative;
  overflow: hidden;
}
.pack-total::before {
  content: '';
  position: absolute;
  top: -80px; right: -80px;
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(255,255,255,0.05) 0%, transparent 70%);
}
.pack-badge {
  display: inline-block;
  background: rgba(255,255,255,0.12);
  color: var(--white);
  font-size: 12px;
  font-weight: 700;
  font-family: var(--font-display);
  padding: 5px 14px;
  border-radius: 100px;
  margin-bottom: 20px;
  letter-spacing: 0.05em;
}
.pack-content {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 40px;
}
.pack-left { flex: 1; }
.pack-title {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 8px;
}
.pack-sub {
  font-size: 15px;
  color: rgba(255,255,255,0.65);
  margin-bottom: 20px;
  line-height: 1.6;
}
.pack-sub strong { color: rgba(255,255,255,0.9); }
.pack-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 14px;
  color: rgba(255,255,255,0.75);
}
.pack-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
  flex-shrink: 0;
}
.pack-old-price {
  font-size: 15px;
  color: rgba(255,255,255,0.4);
  text-decoration: line-through;
}
.pack-price {
  font-family: var(--font-display);
  font-size: 56px;
  font-weight: 800;
  color: var(--white);
  line-height: 1;
}
.pack-economy {
  font-size: 13px;
  color: #4ade80;
  font-weight: 600;
}
.btn-pack {
  background: var(--white);
  color: var(--ink);
  padding: 15px 28px;
  border-radius: var(--radius);
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  transition: opacity .2s, transform .2s;
  white-space: nowrap;
  margin-top: 8px;
}
.btn-pack:hover { opacity: 0.9; transform: translateY(-2px); }

/* ══ GARANTIE ══════════════════════════════════════════════════ */
.garantie {
  padding: 60px 0;
  border-top: 1px solid var(--gray-100);
}
.garantie-inner {
  display: flex;
  align-items: center;
  gap: 32px;
  background: var(--gray-50);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-lg);
  padding: 28px 36px;
}
.garantie-icon { font-size: 36px; flex-shrink: 0; }
.garantie-text { flex: 1; }
.garantie-text h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 6px;
}
.garantie-text p { font-size: 14px; color: var(--gray-700); }
.garantie-badges {
  display: flex;
  gap: 10px;
  flex-shrink: 0;
}
.g-badge {
  background: var(--white);
  border: 1px solid var(--gray-100);
  padding: 8px 14px;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  white-space: nowrap;
}

/* ══ FAQ ════════════════════════════════════════════════════════ */
.faq {
  padding: 100px 0;
  background: var(--gray-50);
  border-top: 1px solid var(--gray-100);
}
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.faq-item {
  background: var(--white);
  border-bottom: 1px solid var(--gray-100);
  cursor: pointer;
  transition: background .2s;
}
.faq-item:last-child { border-bottom: none; }
.faq-item:hover { background: var(--gray-50); }
.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 28px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  gap: 16px;
}
.faq-arrow {
  flex-shrink: 0;
  font-size: 18px;
  color: var(--gray-500);
  transition: transform .3s;
}
.faq-item.open .faq-arrow { transform: rotate(180deg); }
.faq-a {
  display: none;
  padding: 0 28px 22px;
  font-size: 15px;
  color: var(--gray-700);
  line-height: 1.65;
}
.faq-item.open .faq-a { display: block; }

/* ══ FOOTER ════════════════════════════════════════════════════ */
.footer {
  padding: 48px 0;
  border-top: 1px solid var(--gray-100);
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.footer-links {
  display: flex;
  gap: 24px;
}
.footer-links a {
  font-size: 13px;
  color: var(--gray-500);
  text-decoration: none;
  transition: color .2s;
}
.footer-links a:hover { color: var(--ink); }
.footer-copy {
  font-size: 13px;
  color: var(--gray-500);
}

/* ══ RESPONSIVE ════════════════════════════════════════════════ */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-burger { display: block; }
  .steps { grid-template-columns: 1fr; }
  .preuves-grid { grid-template-columns: repeat(2, 1fr); }
  .produits-grid { grid-template-columns: 1fr; }
  .pack-content { flex-direction: column; }
  .pack-right { align-items: flex-start; }
  .garantie-inner { flex-direction: column; text-align: center; }
  .garantie-badges { justify-content: center; }
  .footer-inner { flex-direction: column; text-align: center; }
  .footer-links { justify-content: center; }
  .hero-stats { flex-wrap: wrap; gap: 20px; padding: 20px; }
  .stat-sep { display: none; }
  .hero-cta { flex-direction: column; }
}
@media (max-width: 600px) {
  .preuves-grid { grid-template-columns: 1fr; }
  .hero-title { font-size: 38px; }
  .pack-total { padding: 28px 20px; }
}