/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }
ul { list-style: none; }

/* ===== Design Tokens ===== */
:root {
  /* Brand colors (extraits du logo) */
  --blue-deep: #1E3A8A;
  --blue: #2E66E5;
  --cyan: #2BB7E0;
  --green: #7AC541;
  --yellow: #FFD93D;
  --coral: #FB923C;

  /* Neutrals */
  --bg: #FAFBFC;
  --surface: #FFFFFF;
  --surface-soft: #F1F5F9;
  --text: #0F172A;
  --text-soft: #475569;
  --text-muted: #94A3B8;
  --border: #E2E8F0;
  --border-soft: #F1F5F9;

  /* Gradients */
  --gradient-brand: linear-gradient(135deg, #1E3A8A 0%, #2E66E5 35%, #2BB7E0 70%, #7AC541 100%);
  --gradient-soft: linear-gradient(135deg, #EFF6FF 0%, #F0FDF4 100%);
  --gradient-hero: radial-gradient(circle at 20% 20%, rgba(46,102,229,0.08), transparent 50%),
                   radial-gradient(circle at 80% 60%, rgba(122,197,65,0.10), transparent 50%),
                   radial-gradient(circle at 50% 100%, rgba(43,183,224,0.08), transparent 50%);

  /* Spacing */
  --container: 1200px;
  --gutter: clamp(1rem, 4vw, 2rem);

  /* Radius */
  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 20px;
  --r-xl: 28px;
  --r-full: 999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(15,23,42,0.04), 0 1px 2px rgba(15,23,42,0.06);
  --shadow-md: 0 4px 12px rgba(15,23,42,0.06), 0 2px 4px rgba(15,23,42,0.04);
  --shadow-lg: 0 20px 40px -10px rgba(30,58,138,0.12), 0 10px 20px -10px rgba(15,23,42,0.08);
  --shadow-glow: 0 30px 80px -20px rgba(46,102,229,0.35);

  /* Transitions */
  --t-fast: 150ms ease;
  --t-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== Typography ===== */
h1, h2, h3, h4 { font-weight: 700; letter-spacing: -0.02em; line-height: 1.15; color: var(--text); }
h1 { font-size: clamp(2.25rem, 5.5vw, 3.75rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); letter-spacing: -0.025em; }
h3 { font-size: 1.25rem; }
p { color: var(--text-soft); }

.gradient-text {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* ===== Layout ===== */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

section {
  padding: clamp(4rem, 10vw, 7rem) 0;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto clamp(2.5rem, 6vw, 4rem);
}
.section-header .eyebrow {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--blue);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 1rem;
  padding: 0.375rem 0.875rem;
  background: rgba(46,102,229,0.08);
  border-radius: var(--r-full);
}
.section-header h2 { margin-bottom: 1rem; }
.section-header p { font-size: 1.125rem; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.5rem;
  border-radius: var(--r-full);
  font-weight: 600;
  font-size: 1rem;
  transition: transform var(--t-fast), box-shadow var(--t-base), background var(--t-base);
  white-space: nowrap;
}
.btn-primary {
  background: var(--gradient-brand);
  color: #fff;
  box-shadow: var(--shadow-md);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}
.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-secondary:hover {
  border-color: var(--blue);
  color: var(--blue);
}
.btn-store {
  display: inline-flex;
  align-items: center;
  gap: 0.875rem;
  padding: 0.75rem 1.5rem 0.75rem 1.25rem;
  background: #0F172A;
  color: #fff;
  border-radius: var(--r-md);
  transition: transform var(--t-fast), background var(--t-base);
}
.btn-store:hover { background: #1E293B; transform: translateY(-2px); }
.btn-store svg { width: 28px; height: 28px; flex-shrink: 0; }
.btn-store .store-text { display: flex; flex-direction: column; align-items: flex-start; line-height: 1.1; text-align: left; }
.btn-store .store-text small { font-size: 0.7rem; opacity: 0.85; }
.btn-store .store-text strong { font-size: 1.125rem; font-weight: 600; }

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250,251,252,0.85);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--t-base);
}
.site-header.scrolled { border-bottom-color: var(--border); }
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.brand { display: flex; align-items: center; gap: 0.625rem; font-weight: 700; font-size: 1.125rem; }
.brand img { width: 36px; height: 36px; border-radius: 10px; }
.brand-name {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav { display: flex; align-items: center; gap: 2rem; }
.nav-list { display: flex; align-items: center; gap: 2rem; }
.nav a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-soft);
  transition: color var(--t-fast);
}
.nav a:hover { color: var(--text); }

.nav-toggle { display: none; }

@media (max-width: 860px) {
  .nav-list { display: none !important; }
  .nav.open .nav-list {
    display: flex !important;
    flex-direction: column;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--surface);
    padding: 1.25rem var(--gutter) 1.5rem;
    gap: 1.25rem;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
  }
  .nav-toggle {
    display: inline-flex;
    width: 40px; height: 40px;
    align-items: center; justify-content: center;
    border-radius: var(--r-sm);
    color: var(--text);
  }
  .nav-toggle:hover { background: var(--surface-soft); }
  .header-cta { display: none; }
}

/* ===== Hero ===== */
.hero {
  position: relative;
  background: var(--gradient-hero), var(--bg);
  overflow: hidden;
  padding-top: clamp(3rem, 8vw, 5rem);
  padding-bottom: clamp(4rem, 10vw, 6rem);
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 1px 1px, rgba(15,23,42,0.04) 1px, transparent 0);
  background-size: 32px 32px;
  mask-image: radial-gradient(circle at 50% 40%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(circle at 50% 40%, #000 30%, transparent 75%);
  pointer-events: none;
}
.hero .container {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(3rem, 6vw, 4rem);
  align-items: center;
}
@media (min-width: 960px) { .hero .container { grid-template-columns: 1.1fr 1fr; } }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 0.875rem 0.375rem 0.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-full);
  font-size: 0.85rem;
  color: var(--text-soft);
  font-weight: 500;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-sm);
}
.hero-badge .dot {
  width: 18px; height: 18px;
  background: linear-gradient(135deg, var(--green), var(--cyan));
  border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  color: #fff;
  font-size: 0.7rem;
}

.hero h1 { margin-bottom: 1.25rem; }
.hero p.lead { font-size: 1.2rem; color: var(--text-soft); max-width: 540px; margin-bottom: 2rem; }

.hero-cta { display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; }

.hero-trust {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-top: 2rem;
  flex-wrap: wrap;
  font-size: 0.875rem;
  color: var(--text-muted);
}
.hero-trust span {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}
.hero-trust svg { width: 16px; height: 16px; color: var(--green); }

/* Phone mockup */
.phone-frame {
  position: relative;
  margin: 0 auto;
  max-width: 320px;
  aspect-ratio: 9 / 19.5;
  background: #0F172A;
  border-radius: 44px;
  padding: 12px;
  box-shadow: var(--shadow-glow), 0 0 0 1px rgba(15,23,42,0.08);
  transform: rotate(-2deg);
  transition: transform var(--t-base);
}
.phone-frame:hover { transform: rotate(0deg) translateY(-6px); }
.phone-frame::before {
  content: '';
  position: absolute;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  width: 110px;
  height: 22px;
  background: #0F172A;
  border-radius: 14px;
  z-index: 2;
}
.phone-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 32px;
  background: #fff;
}
.phone-frame.float-shape::after {
  content: '';
  position: absolute;
  inset: -32px;
  background: var(--gradient-brand);
  border-radius: 60px;
  opacity: 0.1;
  z-index: -1;
  filter: blur(40px);
}

/* ===== Trusted/badges row ===== */
.trust-bar {
  border-top: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--border-soft);
  padding: 2rem 0;
  background: var(--surface);
}
.trust-bar .container {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 2rem 3rem;
  text-align: center;
}
.trust-item { display: flex; flex-direction: column; align-items: center; gap: 0.25rem; }
.trust-item strong { font-size: 1.5rem; font-weight: 700; color: var(--text); letter-spacing: -0.02em; }
.trust-item span { font-size: 0.85rem; color: var(--text-muted); }
.trust-item .gradient-text { font-size: 1.5rem; font-weight: 800; }

/* ===== Features ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}
.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 2rem;
  transition: transform var(--t-base), box-shadow var(--t-base), border-color var(--t-base);
  position: relative;
  overflow: hidden;
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--gradient-brand);
  opacity: 0;
  transition: opacity var(--t-base);
}
.feature-card:hover::before { opacity: 1; }

.feature-icon {
  width: 48px; height: 48px;
  border-radius: var(--r-md);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  color: #fff;
}
.feature-icon svg { width: 24px; height: 24px; }
.icon-blue   { background: linear-gradient(135deg, #2E66E5, #1E3A8A); }
.icon-cyan   { background: linear-gradient(135deg, #2BB7E0, #2E66E5); }
.icon-green  { background: linear-gradient(135deg, #7AC541, #2BB7E0); }
.icon-coral  { background: linear-gradient(135deg, #FB923C, #F59E0B); }
.icon-purple { background: linear-gradient(135deg, #8B5CF6, #2E66E5); }
.icon-pink   { background: linear-gradient(135deg, #EC4899, #FB923C); }

.feature-card h3 { margin-bottom: 0.5rem; }
.feature-card p { font-size: 0.95rem; }

/* ===== Privacy highlight ===== */
.privacy-block {
  position: relative;
  background: var(--gradient-brand);
  border-radius: var(--r-xl);
  padding: clamp(2.5rem, 6vw, 4rem);
  color: #fff;
  overflow: hidden;
}
.privacy-block::before,
.privacy-block::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.4;
  pointer-events: none;
}
.privacy-block::before {
  width: 360px; height: 360px;
  background: var(--green);
  top: -120px; right: -80px;
}
.privacy-block::after {
  width: 280px; height: 280px;
  background: var(--cyan);
  bottom: -80px; left: -60px;
}
.privacy-block .inner {
  position: relative;
  display: grid;
  gap: 2.5rem;
  align-items: center;
}
@media (min-width: 768px) { .privacy-block .inner { grid-template-columns: 1.3fr 1fr; } }

.privacy-block h2 { color: #fff; margin-bottom: 1rem; }
.privacy-block p { color: rgba(255,255,255,0.9); font-size: 1.05rem; margin-bottom: 1.5rem; }
.privacy-block ul { display: grid; gap: 0.75rem; }
.privacy-block li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  color: rgba(255,255,255,0.95);
  font-size: 0.95rem;
}
.privacy-block li svg {
  width: 22px; height: 22px;
  flex-shrink: 0;
  background: rgba(255,255,255,0.18);
  padding: 4px;
  border-radius: 50%;
}
.privacy-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}
.privacy-stat {
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--r-md);
  padding: 1.25rem;
  text-align: center;
}
.privacy-stat strong { display: block; font-size: 1.75rem; font-weight: 800; }
.privacy-stat span { font-size: 0.8rem; color: rgba(255,255,255,0.85); }

/* ===== Screenshots gallery ===== */
.screenshots {
  background: var(--surface);
}
.shots-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: clamp(1.5rem, 4vw, 2.5rem);
  align-items: end;
  max-width: 1100px;
  margin: 0 auto;
}
.shot {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.shot .phone-frame {
  transform: rotate(0deg);
  max-width: 240px;
}
.shot .phone-frame:hover { transform: translateY(-8px); }
.shot:nth-child(odd) .phone-frame { transform: rotate(-3deg); }
.shot:nth-child(odd) .phone-frame:hover { transform: rotate(0deg) translateY(-8px); }
.shot:nth-child(even) .phone-frame { transform: rotate(3deg); }
.shot:nth-child(even) .phone-frame:hover { transform: rotate(0deg) translateY(-8px); }

.shot-caption {
  margin-top: 1.5rem;
  font-weight: 600;
  color: var(--text);
}
.shot-caption + p { font-size: 0.9rem; color: var(--text-muted); margin-top: 0.25rem; }

/* ===== FAQ ===== */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: grid;
  gap: 0.875rem;
}
.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  transition: border-color var(--t-base), box-shadow var(--t-base);
  overflow: hidden;
}
.faq-item[open] { border-color: var(--blue); box-shadow: var(--shadow-sm); }
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 1.25rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  font-weight: 600;
  color: var(--text);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '';
  width: 12px; height: 12px;
  border-right: 2px solid var(--text-muted);
  border-bottom: 2px solid var(--text-muted);
  transform: rotate(45deg);
  transition: transform var(--t-base);
  flex-shrink: 0;
}
.faq-item[open] summary::after { transform: rotate(-135deg); border-color: var(--blue); }
.faq-item .faq-body {
  padding: 0 1.5rem 1.25rem;
  color: var(--text-soft);
  font-size: 0.95rem;
}

/* ===== Final CTA ===== */
.final-cta {
  text-align: center;
  background: var(--gradient-soft);
  border-radius: var(--r-xl);
  padding: clamp(3rem, 7vw, 5rem) clamp(1.5rem, 4vw, 3rem);
  margin: 0 var(--gutter) 4rem;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border-soft);
}
.final-cta h2 { margin-bottom: 1rem; }
.final-cta p { font-size: 1.1rem; max-width: 580px; margin: 0 auto 2rem; }
.final-cta .btn-store { margin: 0 auto; }

/* ===== Footer ===== */
.site-footer {
  background: #0F172A;
  color: #94A3B8;
  padding: 4rem 0 2rem;
}
.site-footer a { color: #CBD5E1; transition: color var(--t-fast); }
.site-footer a:hover { color: #fff; }
.footer-grid {
  display: grid;
  gap: 2.5rem;
  grid-template-columns: 1fr;
  margin-bottom: 3rem;
}
@media (min-width: 720px) {
  .footer-grid { grid-template-columns: 1.5fr 1fr 1fr 1fr; }
}
.footer-brand p { color: #94A3B8; font-size: 0.9rem; margin-top: 0.875rem; max-width: 320px; }
.footer-brand .brand-name { background-image: linear-gradient(135deg, #60A5FA, #22D3EE, #A3E635); }
.footer-col h4 { font-size: 0.85rem; font-weight: 600; color: #fff; text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 1rem; }
.footer-col ul { display: grid; gap: 0.625rem; font-size: 0.9rem; }

.footer-bottom {
  border-top: 1px solid #1E293B;
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.85rem;
}

/* ===== Animations on scroll ===== */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 600ms ease, transform 600ms ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
}