/* ============================================================
   SONEYA SERVICES — style.css  v2
   Charte : Bleu profond #0A2463 · Électrique #1E90FF
            Noir #0D0D0D · Blanc #FFFFFF · Gris #F4F6FA
   Fonts  : Syne (titres) · DM Sans (corps)
   Mobile-first · Animations scroll via IntersectionObserver
   ============================================================ */


/* ===================== VARIABLES ===================== */
:root {
  --blue:    #0A2463;   /* bleu profond — marque */
  --elec:    #1E90FF;   /* bleu électrique — accents */
  --black:   #0D0D0D;   /* sections sombres */
  --white:   #FFFFFF;
  --grey:    #F4F6FA;   /* fond section services */
  --muted:   #8A93A8;   /* texte secondaire */
  --wa:      #25D366;   /* vert WhatsApp */

  --elec-bg: #EBF4FF;   /* fond badge bleu pâle */
  --border:  #DDE3EF;   /* bordures légères */

  /* Typographie */
  --font-head: 'Syne',    sans-serif;
  --font-body: 'DM Sans', sans-serif;

  /* Navigation */
  --nav-h: 64px;

  /* Transitions */
  --t: 0.22s ease;
}


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

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

body {
  font-family: var(--font-body);
  background: var(--white);
  color: var(--black);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a   { text-decoration: none; color: inherit; }
ul  { list-style: none; }
img { max-width: 100%; display: block; }

/* Conteneur centré */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 6%;
}

/* Saut de ligne masqué sur mobile, visible ≥ 768px */
.br-md { display: none; }

/* Tags de section */
.section-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--elec);
  background: var(--elec-bg);
  padding: 5px 14px;
  border-radius: 100px;
  margin-bottom: 1rem;
}
/* Variante sur fond sombre */
.section-tag--dim {
  color: rgba(30, 144, 255, 0.85);
  background: rgba(30, 144, 255, 0.1);
}

/* Titres de section */
.section-title {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  letter-spacing: -0.025em;
  line-height: 1.15;
  color: var(--black);
}
.section-title--white { color: var(--white); }


/* ===================== ANIMATIONS SCROLL ===================== */
/* État initial (avant l'animation) */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
/* Classe ajoutée par JS quand l'élément est visible */
.reveal.visible {
  opacity: 1;
  transform: none;
}

/* Délais en cascade — stagger pour les grilles */
.d1 { transition-delay: 0.08s; }
.d2 { transition-delay: 0.18s; }
.d3 { transition-delay: 0.28s; }
.d4 { transition-delay: 0.38s; }


/* ===================== BOUTONS ===================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 0.85rem 1.75rem;
  border-radius: 10px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--t), transform var(--t),
              border-color var(--t), color var(--t), box-shadow var(--t);
  white-space: nowrap;
}

/* Bleu profond — bouton principal */
.btn--main {
  background: var(--blue);
  color: var(--white);
}
.btn--main:hover {
  background: #0d2e7a;
  transform: translateY(-2px);
}

/* Ghost — contour neutre */
.btn--ghost {
  background: transparent;
  color: var(--black);
  border: 1px solid var(--border);
}
.btn--ghost:hover {
  border-color: var(--blue);
  color: var(--blue);
}

/* WhatsApp vert */
.btn--wa {
  background: var(--wa);
  color: var(--white);
  font-size: 1rem;
  font-weight: 600;
  padding: 1rem 2.25rem;
  border-radius: 12px;
  box-shadow: 0 4px 24px rgba(37, 211, 102, 0.25);
}
.btn--wa:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(37, 211, 102, 0.4);
}


/* ===================== NAVIGATION ===================== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  background: var(--white);
  border-bottom: 1px solid #EAEEF5;
  transition: box-shadow var(--t);
}
/* Légère ombre au scroll (ajoutée par JS) */
.nav.scrolled {
  box-shadow: 0 2px 16px rgba(10, 36, 99, 0.08);
}

.nav__inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 6%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

/* Logo */
.nav__logo {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--blue);
  letter-spacing: -0.02em;
  flex-shrink: 0;
}
.nav__logo span { color: var(--elec); } /* Le point bleu électrique */

/* Liens desktop */
.nav__links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav__link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--muted);
  transition: color var(--t);
}
.nav__link:hover { color: var(--black); }

/* Bouton "Nous contacter" dans la nav */
.nav__cta {
  background: var(--blue);
  color: var(--white) !important;
  padding: 0.5rem 1.25rem;
  border-radius: 8px;
  font-weight: 500 !important;
  transition: background var(--t), transform var(--t);
}
.nav__cta:hover {
  background: #0d2e7a;
  color: var(--white) !important;
  transform: translateY(-1px);
}

/* Burger mobile — caché par défaut */
.nav__burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  border-radius: 8px;
  transition: background var(--t);
}
.nav__burger:hover { background: var(--grey); }

.nav__burger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--black);
  border-radius: 2px;
  transition: transform var(--t), opacity var(--t);
}
/* Animation burger → croix */
.nav__burger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav__burger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav__burger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }


/* ===================== HERO ===================== */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: calc(var(--nav-h) + 60px) 6% 80px;
  background: var(--white);
}

/* Badge catégorie */
.hero__eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--elec);
  background: var(--elec-bg);
  padding: 5px 16px;
  border-radius: 100px;
  margin-bottom: 2rem;
}

/* Titre */
.hero__title {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(2rem, 3.6vw, 3.2rem);
  color: var(--black);
  line-height: 1.12;
  letter-spacing: -0.03em;
  max-width: 960px;
}
/* "simple et efficace" — bloc distinct, soulignement décoratif */
.hero__title-accent {
  display: block;
  color: var(--blue);
  position: relative;
  width: fit-content;
  margin: 0 auto;
}
/* Trait bleu électrique sous la ligne */
.hero__title-accent::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--elec);
  border-radius: 2px;
}

/* Sous-titre */
.hero__sub {
  margin: 1.75rem auto 0;
  font-size: 1.05rem;
  font-weight: 300;
  color: var(--muted);
  line-height: 1.75;
  max-width: 480px;
}

/* Groupe de boutons */
.hero__actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 2.5rem;
}


/* ===================== SERVICES (fond gris) ===================== */
.services {
  padding: 100px 0;
  background: var(--grey);
}

.services__header {
  margin-bottom: 3.5rem;
}

/* Grille 4 cartes — 1 col mobile → 2 → 4 desktop */
.services__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

/* Carte */
.card {
  background: var(--white);
  border-radius: 14px;
  padding: 2rem 1.75rem;
  border: 1px solid transparent;
  transition: border-color 0.25s, transform 0.25s, box-shadow 0.25s;
  cursor: default;
}
.card:hover {
  border-color: var(--elec);
  transform: translateY(-3px);
  box-shadow: 0 8px 28px rgba(30, 144, 255, 0.1);
}

.card__icon {
  font-size: 1.6rem;
  margin-bottom: 1.25rem;
  line-height: 1;
}

.card__title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1rem;
  color: var(--blue);
  margin-bottom: 0.5rem;
}

.card__desc {
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.7;
}


/* ===================== MÉTHODE (fond noir) ===================== */
.methode {
  padding: 100px 0;
  background: var(--black);
}

.methode__header {
  margin-bottom: 3.5rem;
}

/* Grille 4 étapes */
.methode__steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

/* Étape individuelle */
.step {
  border-top: 2px solid rgba(255, 255, 255, 0.08);
  padding-top: 1.5rem;
  transition: border-color 0.25s;
}
.step:hover {
  border-top-color: var(--elec);
}

/* Numéro en bleu électrique */
.step__num {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 0.85rem;
  color: var(--elec);
  margin-bottom: 0.75rem;
  letter-spacing: 0.05em;
}

.step__title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--white);
  margin-bottom: 0.5rem;
}

.step__desc {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.4);
  line-height: 1.65;
}


/* ===================== CONTACT (fond blanc) ===================== */
.contact {
  padding: 120px 6%;
  background: var(--white);
  text-align: center;
}

.contact__inner {
  max-width: 580px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}

/* ── Formulaire de contact ── */
.contact__form {
  width: 100%;
  margin-top: 2rem;
  text-align: left;
}

/* Ligne 2 colonnes (nom + email) */
.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}

.form__group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 1rem;
}
.form__row .form__group { margin-bottom: 0; }

.form__group label {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--black);
  letter-spacing: 0.02em;
}

.form__group input,
.form__group textarea {
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--black);
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  outline: none;
  transition: border-color var(--t), box-shadow var(--t);
  resize: vertical;
  width: 100%;
}
.form__group input::placeholder,
.form__group textarea::placeholder { color: var(--muted); }

.form__group input:focus,
.form__group textarea:focus {
  border-color: var(--elec);
  box-shadow: 0 0 0 3px rgba(30, 144, 255, 0.12);
}

/* Bouton submit — pleine largeur */
.form__submit {
  width: 100%;
  justify-content: center;
  margin-top: 0.5rem;
}
.form__submit:disabled {
  opacity: 0.65;
  cursor: not-allowed;
  transform: none;
}

/* Message de retour */
.form__feedback {
  display: none;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 1rem;
  text-align: center;
}
.form__feedback.success {
  display: block;
  background: #e8f8f0;
  color: #1a7a46;
  border: 1px solid #b3e8ce;
}
.form__feedback.error {
  display: block;
  background: #fef2f2;
  color: #b91c1c;
  border: 1px solid #fecaca;
}

/* Séparateur "ou" */
.contact__or {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  margin: 1.75rem 0 1.25rem;
  color: var(--muted);
  font-size: 0.82rem;
}
.contact__or::before,
.contact__or::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* Mobile : formulaire en 1 colonne */
@media (max-width: 480px) {
  .form__row { grid-template-columns: 1fr; }
}

.contact__inner .section-title {
  margin: 0.5rem 0 0;
}

.contact__sub {
  font-size: 1rem;
  color: var(--muted);
  margin: 1.25rem 0 2.5rem;
  max-width: 380px;
  line-height: 1.7;
  font-weight: 300;
}

/* Numéro de téléphone */
.contact__phone {
  margin-top: 1.25rem;
  font-size: 0.875rem;
  color: var(--muted);
}


/* ===================== FOOTER (fond bleu profond) ===================== */
.footer {
  background: var(--blue);
  padding: 2rem 6%;
}

.footer__inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer__logo {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1rem;
  color: var(--white);
  letter-spacing: -0.01em;
}
.footer__logo span { color: var(--elec); }

.footer__nav ul {
  display: flex;
  gap: 1.5rem;
}
.footer__nav a {
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.45);
  transition: color var(--t);
}
.footer__nav a:hover { color: var(--white); }

.footer__copy {
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.3);
}


/* ===================== RESPONSIVE — TABLETTE (≥ 640px) ===================== */
@media (min-width: 640px) {
  .services__grid     { grid-template-columns: repeat(2, 1fr); }
  .methode__steps     { grid-template-columns: repeat(2, 1fr); }
}


/* ===================== RESPONSIVE — DESKTOP (≥ 900px) ===================== */
@media (min-width: 900px) {
  .services__grid { grid-template-columns: repeat(4, 1fr); }
  .methode__steps { grid-template-columns: repeat(4, 1fr); }
  .br-md          { display: block; }
}


/* ===================== MOBILE NAV (< 768px) ===================== */
@media (max-width: 767px) {

  /* Affiche le burger */
  .nav__burger { display: flex; }

  /* Liens en panneau déroulant sous la nav */
  .nav__links {
    position: fixed;
    top: var(--nav-h);
    left: 0; right: 0;
    background: var(--white);
    flex-direction: column;
    align-items: stretch;
    padding: 16px 6% 24px;
    gap: 4px;
    border-bottom: 1px solid #EAEEF5;
    box-shadow: 0 8px 24px rgba(10, 36, 99, 0.08);
    /* Caché par défaut */
    transform: translateY(-110%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s ease, opacity 0.25s ease;
  }

  /* Classe .open ajoutée par JS */
  .nav__links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .nav__link {
    padding: 13px 0;
    font-size: 1rem;
    border-bottom: 1px solid #EAEEF5;
    color: var(--black);
  }
  .nav__link:last-child { border-bottom: none; }

  /* CTA dans le menu mobile */
  .nav__cta {
    display: inline-flex;
    align-self: flex-start;
    margin-top: 8px;
    padding: 0.65rem 1.4rem;
    font-size: 0.95rem;
  }

  /* Footer en colonne sur mobile */
  .footer__inner { flex-direction: column; text-align: center; }
  .footer__nav ul { justify-content: center; }
}