/* =========================================================
   ECONSTRUTEC — Rénovation de Salle de Bain
   Feuille de styles principale
   Design : minéral, minimaliste, inspiré du cimento queimado
   ========================================================= */

:root {
  /* Palette — tons "cimento queimado" (béton ciré chaud), blanc et jaune du logo */
  --c-cream: #F7F1E6;       /* ivoire chaud, proche d'un enduit clair */
  --c-white: #FFFFFF;
  --c-stone-100: #ECE1CC;   /* sable / béton ciré clair */
  --c-stone-200: #DCC9A8;   /* béton ciré taupe clair */
  --c-graphite: #7A6A54;    /* taupe chaud pour le texte secondaire */
  --c-charcoal: #3B3024;    /* béton ciré foncé / terre brûlée */
  --c-charcoal-2: #241B12;  /* cimento queimado profond, quasi noir chaud */
  --c-gold: #F3B63F;        /* jaune du logo */
  --c-gold-dark: #D89A1F;
  --c-gold-light: #FBDA9A;

  /* Typographie */
  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Inter', -apple-system, Segoe UI, sans-serif;

  /* Rythme / arrondis / ombres */
  --radius-lg: 1.5rem;
  --radius-md: 1rem;
  --radius-sm: 0.6rem;
  --shadow-soft: 0 10px 40px -12px rgba(43, 43, 48, 0.18);
  --shadow-card: 0 6px 24px -8px rgba(43, 43, 48, 0.12);
  --ease: cubic-bezier(.22,.61,.36,1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
  font-family: var(--font-body);
  color: var(--c-charcoal);
  background-color: var(--c-cream);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, .font-display {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--c-charcoal-2);
}

.icon-badge{
  font-family: var(--font-body);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.75rem;
  color: var(--c-gold-dark);
}

.icon-badge-b{
  font-family: var(--font-body);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.75rem;
  color: var(--c-white);
}

/* Respecte la préférence de mouvement réduit */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

/* =========================================================
   Élément signature — texture "cimento queimado"
   Bande minérale utilisée comme fond de section et séparateur,
   générée en CSS pur pour évoquer le grain du béton ciré.
   ========================================================= */
.cimento-texture {
  position: relative;
  background-color: var(--c-charcoal-2);
  background-image:
    radial-gradient(120% 140% at 10% 0%, rgba(243,182,63,0.16), transparent 55%),
    radial-gradient(90% 120% at 90% 100%, rgba(243,182,63,0.10), transparent 50%),
    repeating-linear-gradient(115deg, rgba(255,255,255,0.028) 0px, rgba(255,255,255,0.028) 1px, transparent 1px, transparent 3px),
    repeating-linear-gradient(25deg, rgba(0,0,0,0.14) 0px, rgba(0,0,0,0.14) 1px, transparent 1px, transparent 4px),
    linear-gradient(160deg, #3d3122 0%, #2b2117 55%, #1c1610 100%);
  background-blend-mode: normal, normal, overlay, overlay, normal;
}

.cimento-divider {
  height: 6px;
  width: 100%;
  background: linear-gradient(90deg, var(--c-charcoal-2) 0%, var(--c-gold) 50%, var(--c-charcoal-2) 100%);
  background-size: 220% 100%;
  animation: cimento-shift 9s ease-in-out infinite;
  opacity: 0.9;
}
@keyframes cimento-shift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

/* =========================================================
   Header
   ========================================================= */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(250, 248, 244, 0.86);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(46,35,24,0.06);
  transition: box-shadow .3s var(--ease);
}
.site-header.is-scrolled { box-shadow: var(--shadow-card); }

.nav-link {
  position: relative;
  color: var(--c-graphite);
  font-weight: 500;
  font-size: 0.92rem;
  transition: color .25s var(--ease);
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0; bottom: -4px;
  width: 0%; height: 2px;
  background: var(--c-gold);
  transition: width .3s var(--ease);
}
.nav-link:hover { color: var(--c-charcoal-2); }
.nav-link:hover::after { width: 100%; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 600;
  border-radius: 999px;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background-color .25s var(--ease);
  white-space: nowrap;
}
.btn:active { transform: scale(0.97); }

.btn-gold {
  background: var(--c-gold);
  color: var(--c-charcoal-2);
  box-shadow: 0 8px 22px -8px rgba(243,182,63,0.55);
}
.btn-gold:hover {
  background: var(--c-gold-dark);
  transform: translateY(-2px);
  box-shadow: 0 12px 26px -8px rgba(216,154,31,0.55);
}

.btn-outline {
  border: 1.5px solid rgba(46,35,24,0.18);
  color: var(--c-charcoal-2);
  background: transparent;
}
.btn-outline:hover {
  border-color: var(--c-charcoal-2);
  transform: translateY(-2px);
}

.btn-ghost-light {
  border: 1.5px solid rgba(255,255,255,0.35);
  color: #fff;
}
.btn-ghost-light:hover {
  border-color: #fff;
  background: rgba(255,255,255,0.08);
  transform: translateY(-2px);
}

/* =========================================================
   Hero
   ========================================================= */
.hero-shape {
  position: absolute;
  border-radius: 999px;
  filter: blur(70px);
  opacity: 0.5;
  pointer-events: none;
}

.hero-card-float {
  animation: float-soft 6s ease-in-out infinite;
}
@keyframes float-soft {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
}

/* =========================================================
   Cartes
   ========================================================= */
.card-premium {
  background: var(--c-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease);
}
.card-premium:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-soft);
}

.img-zoom { overflow: hidden; }
.img-zoom img { transition: transform .6s var(--ease); }
.img-zoom:hover img { transform: scale(1.07); }

.icon-badge {
  width: 3rem; height: 3rem;
  border-radius: 999px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(243,182,63,0.14);
  color: var(--c-gold-dark);
  flex-shrink: 0;
}

/* =========================================================
   Carrousel Galerie
   ========================================================= */
.carousel-viewport {
  overflow: hidden;
  border-radius: var(--radius-lg);
}
.carousel-track {
  display: flex;
  transition: transform .6s var(--ease);
  will-change: transform;
}
.carousel-slide {
  flex: 0 0 100%;
  position: relative;
}
@media (min-width: 768px) {
  .carousel-slide { flex: 0 0 50%; }
}
@media (min-width: 1100px) {
  .carousel-slide { flex: 0 0 33.3333%; }
}
.carousel-slide .slide-inner {
  margin: 0 10px;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4/5;
  position: relative;
  box-shadow: var(--shadow-card);
}
.carousel-slide img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .5s var(--ease);
}
.carousel-slide:hover img { transform: scale(1.05); }

.carousel-nav-btn {
  width: 3rem; height: 3rem;
  border-radius: 999px;
  background: var(--c-white);
  box-shadow: var(--shadow-card);
  display: flex; align-items: center; justify-content: center;
  color: var(--c-charcoal-2);
  transition: background-color .25s var(--ease), transform .2s var(--ease);
}
.carousel-nav-btn:hover { background: var(--c-gold); transform: scale(1.06); }

.carousel-dot {
  width: 8px; height: 8px;
  border-radius: 999px;
  background: rgba(46,35,24,0.22);
  transition: background-color .3s var(--ease), width .3s var(--ease);
  cursor: pointer;
}
.carousel-dot.is-active {
  background: var(--c-gold-dark);
  width: 22px;
}

/* =========================================================
   Témoignages
   ========================================================= */
.stars { color: var(--c-gold); letter-spacing: 2px; }

/* =========================================================
   Formulaire
   ========================================================= */
.form-field {
  width: 100%;
  padding: 0.85rem 1.1rem;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--c-stone-200);
  background: var(--c-white);
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--c-charcoal-2);
  transition: border-color .25s var(--ease), box-shadow .25s var(--ease);
}
.form-field:focus {
  outline: none;
  border-color: var(--c-gold);
  box-shadow: 0 0 0 4px rgba(243,182,63,0.18);
}
.form-field.field-error { border-color: #D8543F; }
.field-error-msg {
  color: #C0402C;
  font-size: 0.8rem;
  margin-top: 0.3rem;
  display: none;
}
.form-field.field-error + .field-error-msg,
.form-field.field-error ~ .field-error-msg { display: block; }

label.form-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--c-gold-light);
  margin-bottom: 0.4rem;
  display: inline-block;
}

/* Focus visible clair pour l'accessibilité clavier */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--c-gold);
  outline-offset: 2px;
}

/* =========================================================
   Reveal au scroll
   ========================================================= */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* =========================================================
   Bouton WhatsApp flottant
   ========================================================= */
.whatsapp-float {
  position: fixed;
  bottom: 1.4rem;
  right: 1.4rem;
  z-index: 90;
  width: 3.4rem;
  height: 3.4rem;
  border-radius: 999px;
  background: #25D366;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 10px 26px -6px rgba(37,211,102,0.55);
  transition: transform .25s var(--ease);
}
.whatsapp-float:hover { transform: scale(1.08); }

/* =========================================================
   Loader léger pour le bouton du formulaire
   ========================================================= */
.spinner {
  width: 1.1rem; height: 1.1rem;
  border: 2px solid rgba(46,35,24,0.25);
  border-top-color: var(--c-charcoal-2);
  border-radius: 999px;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Texte dégradé doré (usage ponctuel, ex : mot-clé du H1) */
.text-gold-gradient {
  background: linear-gradient(100deg, var(--c-gold-dark), var(--c-gold) 60%, var(--c-gold-light));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}