/* =========================================================
   ScanDZ — Landing page
   Design tokens conformes au brief docs/CADRAGE-landing-page-scandz-fyi.md
   ========================================================= */

:root {
  /* Palette */
  --color-primary: #1FA971;
  --color-primary-strong: #148056;
  --color-primary-hover: #0F6B47;
  --color-primary-soft: #E9F6EE;
  --color-accent-watermelon: #EF5B5B;
  --color-text-primary: #0F172A;
  --color-text-secondary: #334155;
  --color-text-muted: #64748B;
  --color-border: #E2E8F0;
  --color-surface: #FFFFFF;
  --color-bg: #FAFAF9;
  --color-bg-alt: #E9F6EE;
  --color-success: #15803D;
  --color-warning: #B45309;
  --color-error: #B91C1C;
  --color-neutral-dark: #0F172A;

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-pill: 999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, .06);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, .08);
  --shadow-lg: 0 12px 32px rgba(15, 23, 42, .12);

  /* Motion */
  --ease-out: cubic-bezier(.16, 1, .3, 1);
  --dur-fast: 200ms;
  --dur-med: 320ms;

  /* Container */
  --container-max: 1200px;
  --container-gutter: 20px;

  /* Type */
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

@media (min-width: 768px) {
  :root { --container-gutter: 32px; }
}

/* =========================================================
   Reset & base
   ========================================================= */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text-primary);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg { display: block; max-width: 100%; height: auto; }

a { color: var(--color-primary-strong); text-decoration: none; transition: color var(--dur-fast) var(--ease-out); }
a:hover { color: var(--color-primary-hover); text-decoration: underline; }

/* Focus visible unifié */
a:focus-visible, button:focus-visible, input:focus-visible, summary:focus-visible {
  outline: 2px solid var(--color-primary-strong);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* Titres */
h1, h2, h3 { margin: 0 0 .5em; font-weight: 700; line-height: 1.15; color: var(--color-text-primary); }
h1 { font-size: 34px; line-height: 1.05; }
h2 { font-size: 26px; }
h3 { font-size: 20px; font-weight: 600; line-height: 1.3; }
p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

@media (min-width: 768px) {
  h1 { font-size: 56px; }
  h2 { font-size: 40px; }
  h3 { font-size: 24px; }
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-gutter);
}

/* Sections */
.section { padding: 64px 0; }
@media (min-width: 768px) { .section { padding: 96px 0; } }
.section--soft { background: var(--color-primary-soft); }
.section--dark { background: var(--color-neutral-dark); color: #E2E8F0; }
.section--emerald { background: var(--color-primary); color: #FFFFFF; }
.section--emerald h2, .section--emerald p { color: #FFFFFF; }

/* Skip link (a11y) */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 8px;
  background: var(--color-primary-strong);
  color: #FFF;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  z-index: 1000;
}
.skip-link:focus { left: 8px; }

/* =========================================================
   Boutons
   ========================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 24px;
  font-size: 16px;
  font-weight: 600;
  font-family: inherit;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  cursor: pointer;
  min-height: 48px;
  transition: background var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out);
  text-decoration: none;
  white-space: nowrap;
}
.btn:hover { text-decoration: none; }

.btn--primary { background: var(--color-primary-strong); color: #FFF; }
.btn--primary:hover { background: var(--color-primary-hover); color: #FFF; }

.btn--secondary { background: transparent; color: var(--color-primary-strong); border-color: var(--color-primary-strong); }
.btn--secondary:hover { background: var(--color-primary-soft); color: var(--color-primary-strong); }

.btn--on-emerald { background: #FFF; color: var(--color-primary-strong); }
.btn--on-emerald:hover { background: var(--color-primary-soft); color: var(--color-primary-hover); }

.btn--link { background: transparent; color: var(--color-primary-strong); padding: 12px 8px; min-height: 44px; }
.btn--link:hover { color: var(--color-primary-hover); text-decoration: underline; }

/* =========================================================
   Nav
   ========================================================= */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid transparent;
  transition: background var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
}
.nav.is-scrolled {
  background: rgba(255, 255, 255, .96);
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
  gap: 16px;
}
@media (min-width: 768px) { .nav__inner { height: 64px; } }

.nav__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  color: var(--color-text-primary);
  text-decoration: none;
}
.nav__brand:hover { color: var(--color-text-primary); text-decoration: none; }
.nav__brand-mark { width: 32px; height: 32px; border-radius: 8px; }
.nav__brand-name { font-size: 18px; }

.nav__links { display: none; align-items: center; gap: 24px; }
@media (min-width: 900px) { .nav__links { display: flex; } }
.nav__link {
  color: var(--color-text-secondary);
  font-weight: 500;
  font-size: 15px;
  padding: 8px 4px;
}
.nav__link:hover { color: var(--color-primary-strong); text-decoration: none; }

.nav__cta { display: none; }
@media (min-width: 640px) { .nav__cta { display: inline-flex; } }

/* Menu mobile */
.nav__toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--color-text-primary);
}
@media (min-width: 900px) { .nav__toggle { display: none; } }
.nav__toggle svg { width: 24px; height: 24px; }

.nav__drawer {
  display: none;
  padding: 16px var(--container-gutter) 24px;
  border-top: 1px solid var(--color-border);
  background: #FFF;
}
.nav__drawer.is-open { display: block; }
.nav__drawer .nav__link { display: block; padding: 12px 0; font-size: 16px; border-bottom: 1px solid var(--color-border); }
.nav__drawer .btn { margin-top: 16px; width: 100%; }

/* =========================================================
   Hero
   ========================================================= */
.hero {
  padding: 40px 0 64px;
  background: linear-gradient(180deg, var(--color-primary-soft) 0%, var(--color-bg) 100%);
}
@media (min-width: 768px) { .hero { padding: 64px 0 96px; } }

.hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
}
@media (min-width: 900px) {
  .hero__grid { grid-template-columns: 3fr 2fr; gap: 64px; }
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: rgba(31, 169, 113, .12);
  color: var(--color-primary-strong);
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius-pill);
  margin-bottom: 20px;
}
.hero__badge::before { content: '🍉'; }

.hero__title { max-width: 640px; }
.hero__subtitle {
  font-size: 18px;
  color: var(--color-text-secondary);
  max-width: 560px;
  margin-bottom: 32px;
}
@media (min-width: 768px) { .hero__subtitle { font-size: 20px; } }

.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }

/* Mockup */
.mockup { justify-self: center; position: relative; }
@media (min-width: 900px) { .mockup { justify-self: end; } }

.phone {
  position: relative;
  width: 260px;
  aspect-ratio: 9 / 19.5;
  background: #0F172A;
  border-radius: 40px;
  padding: 10px;
  box-shadow: var(--shadow-lg);
  transform: rotate(-4deg);
  transition: transform var(--dur-med) var(--ease-out);
}
@media (min-width: 768px) { .phone { width: 300px; } }
.phone::before {
  content: '';
  position: absolute;
  top: 12px; left: 50%;
  transform: translateX(-50%);
  width: 84px; height: 22px;
  background: #0F172A;
  border-radius: 12px;
  z-index: 2;
}
.phone__screen {
  width: 100%; height: 100%;
  border-radius: 30px;
  background: #FFF;
  overflow: hidden;
  display: block;
  object-fit: cover;
}

/* =========================================================
   Bandeau confiance
   ========================================================= */
.trust {
  padding: 40px 0;
  background: var(--color-primary-soft);
  border-top: 1px solid rgba(31, 169, 113, .12);
  border-bottom: 1px solid rgba(31, 169, 113, .12);
}
.trust__grid {
  display: grid;
  gap: 32px;
  grid-template-columns: 1fr;
}
@media (min-width: 640px) { .trust__grid { grid-template-columns: repeat(3, 1fr); gap: 24px; } }
.trust__item h3 { font-size: 16px; margin: 12px 0 6px; color: var(--color-primary-strong); }
.trust__item p { font-size: 14px; color: var(--color-text-secondary); }
.trust__icon {
  width: 40px; height: 40px;
  color: var(--color-primary-strong);
}

/* =========================================================
   Titres de section
   ========================================================= */
.section__eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--color-primary-strong);
  margin-bottom: 12px;
}
.section__lede {
  font-size: 18px;
  color: var(--color-text-secondary);
  max-width: 720px;
  margin: 0 auto 48px;
}
.section__head { text-align: center; margin-bottom: 48px; }
.section__head--left { text-align: left; margin-bottom: 32px; }

/* =========================================================
   Pourquoi ScanDZ (3 preuves)
   ========================================================= */
.reasons { display: grid; gap: 20px; grid-template-columns: 1fr; }
@media (min-width: 768px) { .reasons { grid-template-columns: repeat(3, 1fr); gap: 24px; } }
.reason {
  padding: 28px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
.reason__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  background: var(--color-primary-soft);
  color: var(--color-primary-strong);
  border-radius: 12px;
  font-weight: 700;
  font-size: 18px;
  margin-bottom: 16px;
}
.reason h3 { font-size: 18px; margin-bottom: 8px; }
.reason p { font-size: 15px; color: var(--color-text-secondary); }

/* =========================================================
   Fonctionnalités (grille 6)
   ========================================================= */
.features {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
}
@media (min-width: 640px) { .features { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 900px) { .features { grid-template-columns: repeat(3, 1fr); gap: 24px; } }

.feature {
  padding: 28px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out);
}
.feature:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.feature__icon {
  width: 40px; height: 40px;
  color: var(--color-primary-strong);
  margin-bottom: 16px;
}
.feature h3 { font-size: 18px; margin-bottom: 8px; }
.feature p { font-size: 15px; color: var(--color-text-secondary); }

/* =========================================================
   Comment ça marche (3 étapes)
   ========================================================= */
.steps {
  display: grid;
  gap: 40px;
  grid-template-columns: 1fr;
  counter-reset: step;
}
@media (min-width: 900px) { .steps { grid-template-columns: repeat(3, 1fr); gap: 32px; position: relative; } }

.step { text-align: center; padding: 0 12px; }
.step__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px; height: 64px;
  border-radius: 50%;
  background: #FFF;
  color: var(--color-primary-strong);
  font-size: 24px;
  font-weight: 700;
  border: 2px solid var(--color-primary-strong);
  margin-bottom: 20px;
}
.step h3 { font-size: 20px; margin-bottom: 8px; }
.step p { color: var(--color-text-secondary); font-size: 15px; }

/* =========================================================
   Galerie mockups
   ========================================================= */
.gallery {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: 20px 0 32px;
  margin: 0 calc(var(--container-gutter) * -1);
  padding-left: var(--container-gutter);
  padding-right: var(--container-gutter);
  scrollbar-width: thin;
}
@media (min-width: 900px) {
  .gallery {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    overflow: visible;
    padding: 0;
    margin: 0;
    gap: 24px;
  }
}
.gallery .phone { flex: 0 0 auto; width: 220px; transform: rotate(0); scroll-snap-align: center; }
@media (min-width: 900px) { .gallery .phone { width: 100%; max-width: 260px; margin: 0 auto; } }
.gallery .phone:nth-child(odd) { transform: rotate(-2deg); }
.gallery .phone:nth-child(even) { transform: rotate(2deg); }

.gallery__caption {
  text-align: center;
  font-size: 13px;
  color: var(--color-text-muted);
  margin-top: 12px;
}

/* =========================================================
   Contribution
   ========================================================= */
.contrib__grid {
  display: grid;
  gap: 40px;
  grid-template-columns: 1fr;
  align-items: center;
}
@media (min-width: 900px) { .contrib__grid { grid-template-columns: 1fr 1fr; gap: 64px; } }

.contrib__visual {
  background: var(--color-primary-soft);
  border-radius: var(--radius-lg);
  padding: 40px;
  text-align: center;
  min-height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.contrib__visual svg { width: 100%; max-width: 240px; height: auto; color: var(--color-primary-strong); }

/* =========================================================
   Tarifs (deux formules côte à côte)
   ========================================================= */
.pricing {
  display: grid;
  gap: 20px;
  grid-template-columns: 1fr;
  max-width: 880px;
  margin: 0 auto;
}
@media (min-width: 768px) { .pricing { grid-template-columns: repeat(2, 1fr); gap: 24px; } }

.plan {
  position: relative;
  padding: 32px 28px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}
.plan--featured {
  border: 2px solid var(--color-primary-strong);
  box-shadow: var(--shadow-md);
  background: linear-gradient(180deg, #F5FBF7 0%, var(--color-surface) 100%);
}
.plan__badge {
  position: absolute;
  top: -14px;
  left: 24px;
  background: var(--color-primary-strong);
  color: #FFFFFF;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .02em;
  text-transform: uppercase;
  padding: 6px 12px;
  border-radius: var(--radius-pill);
}
.plan__head {
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 20px;
  margin-bottom: 20px;
}
.plan__name {
  font-size: 20px;
  font-weight: 700;
  margin: 0 0 12px;
  color: var(--color-text-primary);
}
.plan__price {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 8px;
}
.plan__price-amount {
  font-size: 40px;
  font-weight: 700;
  line-height: 1;
  color: var(--color-primary-strong);
}
.plan__price-unit {
  font-size: 15px;
  color: var(--color-text-secondary);
  font-weight: 500;
}
.plan__tagline {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin: 4px 0 0;
}
.plan__features {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}
.plan__features li {
  position: relative;
  padding-left: 28px;
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.5;
}
.plan__features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  width: 18px;
  height: 18px;
  background: var(--color-primary-soft);
  border-radius: 50%;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23148056' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
  background-size: 12px;
  background-repeat: no-repeat;
  background-position: center;
}

.pricing__note {
  max-width: 720px;
  margin: 32px auto 0;
  text-align: center;
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* =========================================================
   FAQ
   ========================================================= */
.faq {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr;
  max-width: 800px;
  margin: 0 auto;
}
@media (min-width: 900px) { .faq { grid-template-columns: repeat(2, 1fr); gap: 16px; max-width: none; } }

.faq__item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.faq__item summary {
  padding: 20px 24px;
  cursor: pointer;
  font-weight: 600;
  font-size: 16px;
  color: var(--color-text-primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  list-style: none;
  min-height: 60px;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after {
  content: '';
  width: 12px; height: 12px;
  border-right: 2px solid var(--color-primary-strong);
  border-bottom: 2px solid var(--color-primary-strong);
  transform: rotate(45deg);
  transition: transform var(--dur-fast) var(--ease-out);
  flex-shrink: 0;
  margin-top: -4px;
}
.faq__item[open] summary::after { transform: rotate(-135deg); margin-top: 4px; }
.faq__item[open] summary { border-bottom: 1px solid var(--color-border); }
.faq__answer { padding: 20px 24px; color: var(--color-text-secondary); font-size: 15px; }

/* =========================================================
   CTA final (informationnel)
   ========================================================= */
.cta-final { text-align: center; }
.cta-final h2 { color: #FFF; }
.cta-final p { color: rgba(255, 255, 255, .92); max-width: 560px; margin: 0 auto; font-size: 18px; }

/* Badge "Bientôt sur Google Play" placeholder */
.play-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px 10px 16px;
  background: var(--color-text-primary);
  color: #FFF;
  border-radius: var(--radius-sm);
  font-size: 14px;
  cursor: not-allowed;
  opacity: .85;
}
.play-badge__icon {
  width: 24px; height: 24px;
  color: var(--color-primary);
}
.play-badge__label { display: flex; flex-direction: column; line-height: 1.2; }
.play-badge__label small { font-size: 10px; opacity: .8; }

/* =========================================================
   Footer
   ========================================================= */
.footer {
  background: var(--color-neutral-dark);
  color: #CBD5E1;
  padding: 64px 0 32px;
}
.footer__grid {
  display: grid;
  gap: 40px;
  grid-template-columns: 1fr;
  margin-bottom: 48px;
}
@media (min-width: 768px) { .footer__grid { grid-template-columns: 2fr 1fr 1fr; } }
.footer__brand {
  display: flex; align-items: center; gap: 12px; margin-bottom: 16px;
  color: #FFF; font-weight: 700; font-size: 18px;
}
.footer__brand-mark { width: 32px; height: 32px; border-radius: 8px; }
.footer__tagline { font-size: 14px; color: #94A3B8; max-width: 320px; }
.footer h4 { color: #FFF; font-size: 14px; text-transform: uppercase; letter-spacing: .06em; margin-bottom: 16px; }
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer li { margin-bottom: 12px; }
.footer a { color: #CBD5E1; font-size: 14px; }
.footer a:hover { color: #FFF; }
.footer__legal {
  border-top: 1px solid rgba(255, 255, 255, .12);
  padding-top: 24px;
  font-size: 13px;
  color: #94A3B8;
  line-height: 1.6;
}
.footer__legal p { margin-bottom: 12px; }

/* =========================================================
   Utilitaires
   ========================================================= */
.text-center { text-align: center; }
.hidden { display: none !important; }
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}