/* =============================================================
   SOS Numérique — Feuille de style
   Police "Atkinson Hyperlegible" : conçue pour la lisibilité,
   cohérente avec un public senior. Titres en "Fraunces" (chaleureux,
   premium, jamais "startup froide").
   ============================================================= */

:root {
  /* Couleurs */
  --color-ink: #1E2A32;
  --color-ink-soft: #4B5B63;
  --color-bg: #FBFAF7;
  --color-bg-alt: #EFF5F7;
  --color-surface: #FFFFFF;
  --color-primary: #0E4C67;
  --color-primary-dark: #093347;
  --color-accent: #C2410C;
  --color-accent-dark: #9A3410;
  --color-accent-soft: #FDECE3;
  --color-success: #2F7D5A;
  --color-border: #E2E8ED;
  --color-focus: #1D6FA5;

  /* Typographie */
  --font-body: 'Atkinson Hyperlegible', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
  --font-display: 'Fraunces', Georgia, 'Times New Roman', serif;

  /* Échelle */
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --shadow-card: 0 12px 30px -12px rgba(14, 76, 103, 0.18);
  --shadow-modal: 0 24px 60px -16px rgba(9, 51, 71, 0.35);
  --container-width: 1180px;
}

/* -------------------- Reset -------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.125rem; /* 18px de base : lisible */
  line-height: 1.65;
  color: var(--color-ink);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, p { margin: 0; }
button { font: inherit; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

/* -------------------- Accessibilité -------------------- */
.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -100px;
  background: var(--color-primary);
  color: #fff;
  padding: 0.9rem 1.3rem;
  border-radius: var(--radius-sm);
  font-weight: 700;
  z-index: 1000;
  transition: top 0.2s ease;
}
.skip-link:focus {
  top: 1rem;
}

:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
  border-radius: 4px;
}

/* -------------------- Layout -------------------- */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}
.container--narrow { max-width: 760px; }

.section {
  padding: 4.5rem 0;
}
.section--alt {
  background: var(--color-bg-alt);
}
.section__title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 1.4rem + 1.5vw, 2.4rem);
  font-weight: 700;
  text-align: center;
  color: var(--color-primary-dark);
  max-width: 780px;
  margin: 0 auto;
}
.section__lead {
  text-align: center;
  color: var(--color-ink-soft);
  max-width: 620px;
  margin: 0.9rem auto 0;
  font-size: 1.15rem;
}

/* -------------------- Boutons -------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  text-decoration: none;
  font-weight: 700;
  font-family: var(--font-body);
  border-radius: 999px;
  border: 2px solid transparent;
  padding: 0.85rem 1.6rem;
  font-size: 1.05rem;
  line-height: 1.2;
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease, background-color 0.12s ease, border-color 0.12s ease;
  min-height: 52px;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  background: var(--color-accent);
  color: #fff;
  box-shadow: 0 10px 22px -10px rgba(194, 65, 12, 0.55);
}
.btn--primary:hover { background: var(--color-accent-dark); }

.btn--ghost {
  background: transparent;
  color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
}
.btn--ghost:hover { background: rgba(14, 76, 103, 0.08); }

.btn--outline {
  background: #fff;
  color: var(--color-primary-dark);
  border-color: var(--color-border);
}
.btn--outline:hover { border-color: var(--color-primary-dark); }

.btn--large {
  padding: 1.05rem 2rem;
  font-size: 1.15rem;
  min-height: 60px;
}
.btn--full { width: 100%; }
.btn--nav { display: none; }

/* -------------------- Header -------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(251, 250, 247, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.9rem;
  padding-bottom: 0.9rem;
  gap: 1rem;
}
.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--color-primary-dark);
}
.logo__icon { width: 40px; height: 40px; flex-shrink: 0; }
.logo__text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.3rem;
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: transparent;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
}
.nav-toggle__box {
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.nav-toggle__bar {
  width: 22px;
  height: 2.5px;
  background: var(--color-primary-dark);
  border-radius: 2px;
}

.site-nav {
  display: none;
}
.site-nav__list {
  display: flex;
  align-items: center;
  gap: 1.8rem;
}
.site-nav__list a {
  text-decoration: none;
  font-weight: 700;
  color: var(--color-ink);
}
.site-nav__list a:hover { color: var(--color-primary); }

@media (min-width: 900px) {
  .nav-toggle { display: none; }
  .site-nav {
    display: flex;
    align-items: center;
    gap: 2.2rem;
  }
  .btn--nav { display: inline-flex; }
}

/* Menu mobile ouvert */
@media (max-width: 899px) {
  .site-nav {
    position: absolute;
    left: 0; right: 0; top: 100%;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 1.5rem;
    flex-direction: column;
    align-items: stretch;
    gap: 1.2rem;
  }
  .site-nav[hidden] { display: none; }
  .site-nav__list {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
  .site-nav .btn--nav { display: inline-flex; width: 100%; }
}

/* -------------------- Hero -------------------- */
.hero {
  padding: 3.5rem 0 4rem;
}
.hero__inner {
  display: grid;
  gap: 2.5rem;
  align-items: center;
}
.eyebrow {
  display: inline-block;
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  margin-bottom: 1.2rem;
}
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 1.6rem + 2.2vw, 3.2rem);
  line-height: 1.15;
  color: var(--color-primary-dark);
  font-weight: 700;
}
.hero__subtitle {
  margin-top: 1.3rem;
  font-size: 1.2rem;
  color: var(--color-ink-soft);
  max-width: 46ch;
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}
.reassurance {
  margin-top: 1.6rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  color: var(--color-success);
}
.reassurance__icon { width: 22px; height: 22px; flex-shrink: 0; }

.hero__visual { justify-self: center; width: 100%; max-width: 380px; }

@media (min-width: 960px) {
  .hero__inner {
    grid-template-columns: 1.1fr 0.9fr;
  }
  .hero__visual { justify-self: end; max-width: 420px; }
}

/* -------------------- Cartes exemples -------------------- */
.cards-grid {
  margin-top: 2.5rem;
  display: grid;
  gap: 1.1rem;
  grid-template-columns: 1fr;
}
@media (min-width: 640px) {
  .cards-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 960px) {
  .cards-grid { grid-template-columns: repeat(3, 1fr); }
}

.example-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.4rem 1.5rem;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}
.example-card__icon {
  flex-shrink: 0;
  width: 44px; height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-alt);
  color: var(--color-primary);
  border-radius: 12px;
}
.example-card__icon svg { width: 24px; height: 24px; }
.example-card p {
  font-weight: 700;
  color: var(--color-ink);
  font-size: 1.05rem;
}

/* -------------------- Étapes -------------------- */
.steps {
  margin-top: 2.5rem;
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 1fr;
  counter-reset: step;
}
@media (min-width: 720px) {
  .steps { grid-template-columns: repeat(3, 1fr); }
  .step--bonus { grid-column: 1 / -1; max-width: 480px; margin: 0 auto; }
}
@media (min-width: 1024px) {
  .step--bonus { grid-column: auto; max-width: none; margin: 0; }
  .steps { grid-template-columns: repeat(4, 1fr); }
}

.step {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: 2rem 1.6rem;
  text-align: center;
  border: 1px solid var(--color-border);
}
.step--bonus {
  background: var(--color-accent-soft);
  border-color: transparent;
}
.step__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.3rem;
  margin-bottom: 1.1rem;
}
.step__number--bonus { background: var(--color-accent); }
.step h3 {
  font-size: 1.25rem;
  margin-bottom: 0.6rem;
  color: var(--color-primary-dark);
}
.step p { color: var(--color-ink-soft); }

/* -------------------- Section parents -------------------- */
.parents {
  background: var(--color-primary-dark);
  color: #fff;
}
.parents__inner {
  display: grid;
  gap: 2.5rem;
  align-items: center;
}
.parents h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 1.4rem + 1.4vw, 2.3rem);
  margin-bottom: 1.2rem;
}
.parents p {
  color: rgba(255,255,255,0.88);
  font-size: 1.1rem;
  max-width: 50ch;
}
.parents__highlight {
  font-weight: 700;
  color: #fff;
  font-size: 1.2rem;
  margin-top: 1rem;
}
.parents .btn { margin-top: 1.8rem; }
.parents__visual { justify-self: center; width: 100%; max-width: 340px; }

@media (min-width: 900px) {
  .parents__inner { grid-template-columns: 0.85fr 1.15fr; }
  .parents__visual { order: 2; justify-self: end; }
  .parents__text { order: 1; }
}

/* -------------------- Pricing -------------------- */
.pricing-grid {
  margin-top: 2.8rem;
  display: grid;
  gap: 1.8rem;
  grid-template-columns: 1fr;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}
@media (min-width: 760px) {
  .pricing-grid { grid-template-columns: repeat(2, 1fr); }
}

.price-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.4rem 2rem;
  position: relative;
  display: flex;
  flex-direction: column;
}
.price-card--featured {
  border: 2px solid var(--color-accent);
  box-shadow: var(--shadow-card);
}
.price-card__badge {
  position: absolute;
  top: -0.9rem;
  left: 2rem;
  background: var(--color-accent);
  color: #fff;
  font-weight: 700;
  font-size: 0.85rem;
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
}
.price-card__name {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--color-primary-dark);
}
.price-card__price {
  margin-top: 0.8rem;
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
}
.price-card__amount {
  font-family: var(--font-display);
  font-size: 2.6rem;
  font-weight: 700;
  color: var(--color-ink);
}
.price-card__period { color: var(--color-ink-soft); }
.price-card__desc {
  margin-top: 0.7rem;
  color: var(--color-ink-soft);
}
.price-card__list {
  margin: 1.6rem 0 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  flex-grow: 1;
}
.price-card__list li {
  padding-left: 1.8rem;
  position: relative;
}
.price-card__list li::before {
  content: '';
  position: absolute;
  left: 0; top: 0.35rem;
  width: 18px; height: 18px;
  background: var(--color-success);
  border-radius: 50%;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M4 12l5 5L20 6' stroke='black' stroke-width='3' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/70% no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M4 12l5 5L20 6' stroke='black' stroke-width='3' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/70% no-repeat;
}

/* -------------------- Confiance -------------------- */
.trust-grid {
  margin-top: 2.6rem;
  display: grid;
  gap: 1.6rem;
  grid-template-columns: 1fr;
}
@media (min-width: 640px) {
  .trust-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .trust-grid { grid-template-columns: repeat(4, 1fr); }
}
.trust-item {
  text-align: center;
  padding: 1.4rem;
}
.trust-item__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 60px; height: 60px;
  border-radius: 50%;
  background: var(--color-surface);
  color: var(--color-primary);
  margin-bottom: 1.1rem;
  box-shadow: 0 6px 16px -8px rgba(14,76,103,0.3);
}
.trust-item__icon svg { width: 30px; height: 30px; }
.trust-item h3 {
  font-size: 1.15rem;
  color: var(--color-primary-dark);
  margin-bottom: 0.4rem;
}
.trust-item p { color: var(--color-ink-soft); font-size: 1rem; }

.security-note {
  margin: 3rem auto 0;
  max-width: 640px;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.7rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.2rem 1.5rem;
}
.security-note svg { width: 26px; height: 26px; flex-shrink: 0; color: var(--color-accent); }

/* -------------------- FAQ -------------------- */
.faq-list {
  margin-top: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}
.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0.3rem 1.5rem;
}
.faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: 1.15rem 2rem 1.15rem 0;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-primary-dark);
  position: relative;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.6rem;
  color: var(--color-accent);
  font-weight: 700;
}
.faq-item[open] summary::after { content: '−'; }
.faq-item p {
  padding: 0 0 1.4rem;
  color: var(--color-ink-soft);
}

/* -------------------- CTA final -------------------- */
.cta-final {
  background: var(--color-accent-soft);
}
.cta-final__inner {
  text-align: center;
  max-width: 640px;
}
.cta-final h2 {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 1.4rem + 1.2vw, 2.2rem);
  color: var(--color-primary-dark);
  margin-bottom: 0.8rem;
}
.cta-final p {
  color: var(--color-ink-soft);
  font-size: 1.15rem;
  margin-bottom: 1.8rem;
}

/* -------------------- Footer -------------------- */
.site-footer {
  background: var(--color-primary-dark);
  color: rgba(255,255,255,0.85);
  padding: 3rem 0;
}
.site-footer__inner {
  display: grid;
  gap: 2rem;
}
.logo__text--footer { color: #fff; }
.site-footer__brand p { margin-top: 0.6rem; max-width: 40ch; color: rgba(255,255,255,0.7); }
.site-footer__nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem 1.8rem;
}
.site-footer__nav a { text-decoration: none; font-weight: 700; }
.site-footer__nav a:hover { text-decoration: underline; }
.site-footer__legal {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.55);
  border-top: 1px solid rgba(255,255,255,0.15);
  padding-top: 1.5rem;
}

@media (min-width: 760px) {
  .site-footer__inner { grid-template-columns: 1.2fr 1fr; }
  .site-footer__legal { grid-column: 1 / -1; }
}

/* -------------------- Modal de préinscription -------------------- */
.modal {
  border: none;
  border-radius: var(--radius-lg);
  padding: 2.2rem;
  width: min(480px, 92vw);
  box-shadow: var(--shadow-modal);
  background: var(--color-surface);
  color: var(--color-ink);
}
.modal::backdrop {
  background: rgba(15, 30, 40, 0.55);
  backdrop-filter: blur(2px);
}
.modal h2 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  color: var(--color-primary-dark);
}
.modal__intro { margin-top: 0.6rem; color: var(--color-ink-soft); }
.modal__close-form { display: flex; justify-content: flex-end; margin-bottom: -0.5rem; }
.modal__close {
  background: transparent;
  border: none;
  font-size: 1.3rem;
  width: 40px; height: 40px;
  border-radius: 50%;
  cursor: pointer;
  color: var(--color-ink-soft);
}
.modal__close:hover { background: var(--color-bg-alt); }

.form-field { margin-top: 1.3rem; display: flex; flex-direction: column; gap: 0.5rem; }
.form-field label, .form-field legend { font-weight: 700; padding: 0; }
.form-field input[type="text"],
.form-field input[type="email"],
.form-field select {
  font: inherit;
  font-size: 1.05rem;
  padding: 0.85rem 1rem;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
}
.form-field input:focus, .form-field select:focus {
  border-color: var(--color-focus);
}
.radio-label { display: flex; align-items: center; gap: 0.6rem; font-weight: 400; margin-top: 0.3rem; }
.radio-label input { width: 20px; height: 20px; }

#signupForm .btn { margin-top: 1.8rem; }
.modal__privacy { margin-top: 0.9rem; font-size: 0.88rem; color: var(--color-ink-soft); text-align: center; }

.modal__success-icon { width: 64px; margin: 0 auto 1rem; }
#signupSuccessView { text-align: center; }
#signupSuccessView p { margin-top: 0.6rem; color: var(--color-ink-soft); }
#signupSuccessView .btn { margin-top: 1.6rem; }