/* ============================================================
   PORTESIA — Feuille de style globale
   ============================================================ */

/* ── Google Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ── Variables ── */
:root {
  --color-primary:       #0a4c86;
  --color-primary-dark:  #073a68;
  --color-primary-light: #1a6abf;
  --color-accent:        #e8f2ff;
  --color-white:         #ffffff;
  --color-bg:            #f8fafc;
  --color-text:          #1a2640;
  --color-text-mid:      #4a5c74;
  --color-text-light:    #7a8fa6;
  --color-border:        #dce6f0;
  --color-success:       #0f9d6e;

  --font:      'Inter', system-ui, -apple-system, sans-serif;

  --radius-sm: 6px;
  --radius:    12px;
  --radius-lg: 20px;

  --shadow-sm: 0 1px 3px rgba(10,76,134,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow:    0 4px 16px rgba(10,76,134,.10), 0 2px 6px rgba(0,0,0,.06);
  --shadow-lg: 0 12px 40px rgba(10,76,134,.14), 0 4px 12px rgba(0,0,0,.06);

  --max-w: 1200px;
  --gap:   clamp(1rem, 4vw, 2rem);
}

/* ── Reset & base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a  { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; font-family: var(--font); }

/* ── Utilitaires ── */
.container {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: clamp(1rem, 5vw, 2.5rem);
}

.section {
  padding-block: clamp(3.5rem, 8vw, 6rem);
}

.section--bg {
  background: var(--color-bg);
}

.section--blue {
  background: var(--color-primary);
  color: var(--color-white);
}

.section-label {
  display: inline-block;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--color-primary-light);
  margin-bottom: .75rem;
}

.section--blue .section-label {
  color: rgba(255,255,255,.65);
}

.section-title {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--color-text);
  margin-bottom: 1rem;
}

.section--blue .section-title {
  color: var(--color-white);
}

.section-subtitle {
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  color: var(--color-text-mid);
  max-width: 580px;
  line-height: 1.7;
}

.section--blue .section-subtitle {
  color: rgba(255,255,255,.8);
}

.text-center { text-align: center; }
.text-center .section-subtitle { margin-inline: auto; }

/* ── Boutons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 1.75rem;
  border-radius: var(--radius);
  font-size: .95rem;
  font-weight: 600;
  transition: all .2s ease;
  border: 2px solid transparent;
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-white);
}
.btn--primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}

.btn--outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn--outline:hover {
  background: var(--color-accent);
  transform: translateY(-1px);
}

.btn--white {
  background: var(--color-white);
  color: var(--color-primary);
}
.btn--white:hover {
  background: var(--color-accent);
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}

.btn--outline-white {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255,255,255,.5);
}
.btn--outline-white:hover {
  border-color: var(--color-white);
  background: rgba(255,255,255,.1);
}

.btn--lg {
  padding: .9rem 2.25rem;
  font-size: 1rem;
}

/* ── Header ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 1.5rem;
}

.header-logo img {
  height: 44px;
  width: auto;
}

/* Navigation principale */
.site-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.site-nav__links {
  display: flex;
  align-items: center;
  gap: .25rem;
}

.site-nav__links a {
  font-size: .9rem;
  font-weight: 500;
  color: var(--color-text-mid);
  padding: .5rem .75rem;
  border-radius: var(--radius-sm);
  transition: color .15s, background .15s;
}

.site-nav__links a:hover,
.site-nav__links a.active {
  color: var(--color-primary);
  background: var(--color-accent);
}

.site-nav__cta {
  display: flex;
  align-items: center;
  gap: .75rem;
}

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: .5rem;
  background: none;
  border: none;
  border-radius: var(--radius-sm);
  transition: background .15s;
}
.nav-toggle:hover { background: var(--color-accent); }

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform .3s, opacity .3s;
}

/* Menu ouvert */
.nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Footer ── */
.site-footer {
  background: var(--color-primary-dark);
  color: rgba(255,255,255,.75);
  padding-block: clamp(2.5rem, 5vw, 4rem) 1.5rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  margin-bottom: 3rem;
}

.footer-brand__logo {
  height: 36px;
  width: auto;
  display: block;
  margin-bottom: 1rem;
  background: white;
  padding: 6px 10px;
  border-radius: 6px;
}

.footer-brand p {
  font-size: .875rem;
  line-height: 1.7;
  max-width: 280px;
}

.footer-col h4 {
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--color-white);
  margin-bottom: 1rem;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: .5rem;
}

.footer-col a {
  font-size: .875rem;
  color: rgba(255,255,255,.65);
  transition: color .15s;
}
.footer-col a:hover { color: var(--color-white); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding-top: 1.5rem;
  text-align: center;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: .8rem;
}

.footer-legal {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.footer-legal a { color: rgba(255,255,255,.5); }
.footer-legal a:hover { color: var(--color-white); }

/* ── Cards générique ── */
.card {
  background: var(--color-white);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: box-shadow .2s, transform .2s;
}
.card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.card__icon {
  width: 52px;
  height: 52px;
  background: var(--color-accent);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.card__icon svg {
  width: 26px;
  height: 26px;
  color: var(--color-primary);
}

.card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: .5rem;
  color: var(--color-text);
}

.card p {
  font-size: .9rem;
  color: var(--color-text-mid);
  line-height: 1.65;
}

/* Grilles réutilisables */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--gap); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--gap); }

/* ── Hero ── */
.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, #1558a0 60%, #1e6fc0 100%);
  color: var(--color-white);
  padding-block: clamp(4rem, 10vw, 8rem);
  position: relative;
  overflow: hidden;
}

/* Motif décoratif */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 70% 50%, rgba(255,255,255,.05) 0%, transparent 50%),
    radial-gradient(circle at 20% 80%, rgba(255,255,255,.04) 0%, transparent 40%);
  pointer-events: none;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  position: relative;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 50px;
  padding: .35rem 1rem;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .05em;
  margin-bottom: 1.5rem;
  backdrop-filter: blur(4px);
}

.hero__badge-dot {
  width: 7px;
  height: 7px;
  background: #4ade80;
  border-radius: 50%;
  flex-shrink: 0;
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: .7; transform: scale(1.3); }
}

.hero h1 {
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1.25rem;
  color: var(--color-white);
}

.hero h1 em {
  font-style: normal;
  background: linear-gradient(90deg, #7dd3fc, #bfdbfe);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  color: rgba(255,255,255,.85);
  line-height: 1.7;
  margin-bottom: 2.25rem;
  max-width: 480px;
}

.hero__actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Carte flottante hero */
.hero__visual {
  position: relative;
}

.hero__card {
  background: rgba(255,255,255,.1);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,.2);
  border-radius: var(--radius-lg);
  padding: 2rem;
  color: var(--color-white);
}

.hero__card-title {
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: rgba(255,255,255,.6);
  margin-bottom: 1.25rem;
}

.hero__stat-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.hero__stat {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .9rem 1.1rem;
  background: rgba(255,255,255,.08);
  border-radius: var(--radius);
  gap: 1rem;
}

.hero__stat-label {
  font-size: .875rem;
  color: rgba(255,255,255,.75);
}

.hero__stat-value {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-white);
  white-space: nowrap;
}

/* ── Section avantages ── */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

/* ── Section CTA bandeau ── */
.cta-banner {
  background: linear-gradient(135deg, var(--color-primary) 0%, #1558a0 100%);
  border-radius: var(--radius-lg);
  padding: clamp(2.5rem, 5vw, 4rem) clamp(2rem, 5vw, 4rem);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}

.cta-banner__text h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  margin-bottom: .5rem;
}

.cta-banner__text p {
  color: rgba(255,255,255,.8);
  font-size: .95rem;
}

.cta-banner__actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  flex-shrink: 0;
}

/* ── Section chiffres clés ── */
.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  text-align: center;
}

.stat-item__number {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: .35rem;
}

.stat-item__label {
  font-size: .9rem;
  color: var(--color-text-mid);
}

/* Séparateur */
.stat-item + .stat-item {
  border-left: 1px solid var(--color-border);
}

/* ── Section comment ça marche (steps) ── */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  position: relative;
}

/* Ligne de connexion entre étapes */
.steps-grid::before {
  content: '';
  position: absolute;
  top: 26px;
  left: calc(12.5% + 1rem);
  right: calc(12.5% + 1rem);
  height: 2px;
  background: var(--color-border);
  z-index: 0;
}

.step-card {
  text-align: center;
  position: relative;
  z-index: 1;
}

.step-card__number {
  width: 52px;
  height: 52px;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 800;
  margin: 0 auto 1.25rem;
  position: relative;
  z-index: 1;
  box-shadow: 0 0 0 6px var(--color-white), 0 0 0 8px var(--color-border);
}

.step-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: .5rem;
}

.step-card p {
  font-size: .875rem;
  color: var(--color-text-mid);
  line-height: 1.6;
}

/* ── Responsive ── */

@media (max-width: 1024px) {
  .advantages-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  /* Navigation mobile */
  .nav-toggle { display: flex; }

  .site-nav {
    position: fixed;
    inset: 72px 0 0 0;
    background: var(--color-white);
    flex-direction: column;
    align-items: flex-start;
    padding: 1.5rem;
    gap: 1.5rem;
    border-top: 1px solid var(--color-border);
    transform: translateX(100%);
    transition: transform .3s ease;
    overflow-y: auto;
  }

  .site-nav.is-open {
    transform: translateX(0);
  }

  .site-nav__links {
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
    gap: .25rem;
  }

  .site-nav__links a {
    width: 100%;
    padding: .75rem 1rem;
    font-size: 1rem;
  }

  .site-nav__cta {
    flex-direction: column;
    width: 100%;
  }

  .site-nav__cta .btn {
    width: 100%;
    justify-content: center;
  }

  /* Hero */
  .hero__inner {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .hero__visual { order: -1; }

  /* Grilles */
  .grid-2,
  .grid-3,
  .grid-4,
  .advantages-grid,
  .steps-grid { grid-template-columns: 1fr; }

  .steps-grid::before { display: none; }

  .stats-row { grid-template-columns: 1fr; gap: 1.5rem; }
  .stat-item + .stat-item { border-left: none; border-top: 1px solid var(--color-border); padding-top: 1.5rem; }

  /* Footer */
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { text-align: center; }
}

@media (max-width: 480px) {
  .hero__actions { flex-direction: column; }
  .hero__actions .btn { width: 100%; justify-content: center; }
  .cta-banner { text-align: center; justify-content: center; }
  .cta-banner__actions { width: 100%; flex-direction: column; }
  .cta-banner__actions .btn { width: 100%; justify-content: center; }
}