/* ==========================================================================
   Plombier 31 Dias — feuille de style principale
   ========================================================================== */

:root {
  --color-primary: #0e4d78;
  --color-primary-dark: #093552;
  --color-primary-light: #eaf3fa;
  --color-accent: #ff7a1a;
  --color-accent-dark: #e0660a;
  --color-text: #1c2530;
  --color-text-muted: #5b6674;
  --color-bg: #ffffff;
  --color-bg-alt: #f5f8fb;
  --color-border: #e3e8ee;
  --color-success: #1f9d55;
  --color-star: #ffb400;

  --radius-sm: 6px;
  --radius-md: 14px;
  --radius-lg: 24px;

  --shadow-sm: 0 1px 3px rgba(15, 32, 55, 0.08);
  --shadow-md: 0 10px 28px rgba(15, 32, 55, 0.1);
  --shadow-lg: 0 20px 48px rgba(15, 32, 55, 0.16);

  --container: 1180px;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-8: 3rem;
  --space-10: 4rem;
  --space-12: 6rem;

  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --transition: 0.25s ease;
  --header-h: 76px;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body, h1, h2, h3, h4, p, figure, blockquote { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
img, picture, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
input, textarea, select { font: inherit; }
html:focus-within { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

html, body { overflow-x: hidden; }

body {
  font-family: var(--font);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  width: 100%;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-5);
}

section { padding-block: var(--space-10); }

h1, h2, h3, h4 { line-height: 1.2; font-weight: 700; }
h1 { font-size: clamp(2rem, 5vw, 3rem); }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.2rem); }
h3 { font-size: 1.2rem; }
p { color: var(--color-text-muted); }

.icon { width: 1em; height: 1em; fill: currentColor; flex-shrink: 0; }

/* ---------- Skip link (a11y) ---------- */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-primary);
  color: #fff;
  padding: var(--space-3) var(--space-5);
  z-index: 1000;
  border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus { left: 0; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.85rem 1.6rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.98rem;
  border: 2px solid transparent;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition);
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--color-accent);
  color: #fff;
  box-shadow: var(--shadow-md);
}
.btn-primary:hover { background: var(--color-accent-dark); }
.btn-outline {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.6);
  color: #fff;
}
.btn-outline:hover { background: rgba(255, 255, 255, 0.15); }
.btn-ghost {
  background: var(--color-primary-light);
  color: var(--color-primary);
}
.btn-ghost:hover { background: #dcecf9; }
.btn-block { width: 100%; }
.btn-sm { padding: 0.6rem 1.1rem; font-size: 0.9rem; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 500;
  border-bottom: 1px solid var(--color-border);
  height: var(--header-h);
  display: flex;
  align-items: center;
}
/* Le flou est posé sur un pseudo-élément plutôt que sur .site-header
   directement : backdrop-filter crée un containing block pour les
   descendants en position:fixed (le menu mobile), ce qui casserait
   son plein écran si le filtre était sur le header lui-même. */
.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(10px);
  -webkit-backdrop-filter: saturate(180%) blur(10px);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}
.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--color-primary);
}
.brand .brand-badge {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--color-primary);
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 1.3rem;
}
.brand small {
  display: block;
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--color-text-muted);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}
.main-nav .header-actions { display: none; }
.main-nav ul {
  display: flex;
  gap: var(--space-5);
  font-weight: 600;
  font-size: 0.95rem;
}
.main-nav a {
  padding: var(--space-2) 0;
  position: relative;
  color: var(--color-text);
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  height: 2px;
  width: 0;
  background: var(--color-accent);
  transition: width var(--transition);
}
.main-nav a:hover::after,
.main-nav a[aria-current="page"]::after { width: 100%; }

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.call-pill {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--color-primary-light);
  color: var(--color-primary);
  padding: 0.55rem 1rem;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
}
.call-pill .icon { color: var(--color-accent); }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  padding: var(--space-2);
  color: var(--color-primary);
}
.nav-toggle .icon { width: 28px; height: 28px; }

/* ---------- Hero ---------- */
.hero {
  padding-block: var(--space-10) var(--space-8);
  background: linear-gradient(180deg, var(--color-primary-light) 0%, var(--color-bg) 100%);
}
.hero .container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-8);
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: #fff;
  border: 1px solid var(--color-border);
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
  box-shadow: var(--shadow-sm);
}
.hero-badge .icon { color: var(--color-accent); }
.hero h1 { color: var(--color-primary-dark); margin-bottom: var(--space-4); }
.hero h1 span { color: var(--color-accent); }
.hero-lead { font-size: 1.1rem; margin-bottom: var(--space-6); max-width: 46ch; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-bottom: var(--space-6); }
.hero-ctas .btn-primary { color: #fff; }
.hero-ctas .btn-ghost { border: 2px solid var(--color-primary-light); }

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-5);
}
.hero-trust li {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-text);
}
.hero-trust .icon { color: var(--color-success); }

.hero-media { position: relative; }
.hero-media img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  object-position: left center;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}
.hero-float {
  position: absolute;
  bottom: -1.25rem;
  left: -1.25rem;
  background: #fff;
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.hero-float .stars { color: var(--color-star); font-size: 1rem; letter-spacing: 1px; }
.hero-float strong { display: block; font-size: 1.1rem; }
.hero-float span { font-size: 0.8rem; color: var(--color-text-muted); }

/* ---------- Section heading ---------- */
.section-head { text-align: center; max-width: 640px; margin-inline: auto; margin-bottom: var(--space-8); }
.eyebrow {
  display: inline-block;
  color: var(--color-accent);
  font-weight: 800;
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-2);
}
.section-head h2 { color: var(--color-primary-dark); margin-bottom: var(--space-3); }

/* ---------- Services ---------- */
.services { background: var(--color-bg-alt); }
.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-5);
}
.service-card {
  background: #fff;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
  display: flex;
  flex-direction: column;
}
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.service-card img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.service-card-body { padding: var(--space-5); display: flex; flex-direction: column; gap: var(--space-2); flex: 1; }
.service-card-body p { flex: 1; font-size: 0.92rem; }
.service-card-body .link { font-weight: 700; color: var(--color-primary); display: inline-flex; align-items: center; gap: var(--space-1); }
.service-card-body .link .icon { width: 0.85em; height: 0.85em; transition: transform var(--transition); }
.service-card-body .link:hover .icon { transform: translateX(3px); }

/* ---------- Why us ---------- */
.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-6);
}
.why-item { display: flex; gap: var(--space-4); }
.why-item .why-icon {
  width: 52px;
  height: 52px;
  flex-shrink: 0;
  border-radius: 14px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: grid;
  place-items: center;
}
.why-item .why-icon .icon { width: 26px; height: 26px; }
.why-item h3 { margin-bottom: var(--space-1); font-size: 1.05rem; }
.why-item p { font-size: 0.9rem; }

/* ---------- Gallery preview / page ---------- */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  gap: var(--space-3);
}
.gallery-grid .gallery-item {
  display: block;
  padding: 0;
  border: none;
  background: none;
  border-radius: var(--radius-sm);
  overflow: hidden;
  aspect-ratio: 1 / 1;
  position: relative;
  box-shadow: var(--shadow-sm);
  cursor: pointer;
}
.gallery-grid img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}
.gallery-grid .gallery-item:hover img { transform: scale(1.07); }
.gallery-grid .gallery-item::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(9,53,82,0.55) 100%);
  opacity: 0;
  transition: opacity var(--transition);
}
.gallery-grid .gallery-item:hover::after { opacity: 1; }
.section-cta-center { text-align: center; margin-top: var(--space-8); }

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(9, 15, 22, 0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-5);
}
.lightbox[hidden] { display: none; }
.lightbox figure { max-width: min(90vw, 900px); text-align: center; }
.lightbox img { max-height: 80vh; margin-inline: auto; border-radius: var(--radius-sm); }
.lightbox figcaption { color: #fff; margin-top: var(--space-3); font-size: 0.9rem; opacity: 0.8; }
.lightbox-close, .lightbox-prev, .lightbox-next {
  position: absolute;
  background: rgba(255,255,255,0.12);
  border: none;
  color: #fff;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  transition: background var(--transition);
}
.lightbox-close:hover, .lightbox-prev:hover, .lightbox-next:hover { background: rgba(255,255,255,0.28); }
.lightbox-close { top: var(--space-5); right: var(--space-5); }
.lightbox-prev { left: var(--space-5); top: 50%; transform: translateY(-50%); }
.lightbox-next { right: var(--space-5); top: 50%; transform: translateY(-50%); }
.lightbox-close .icon, .lightbox-prev .icon, .lightbox-next .icon { width: 22px; height: 22px; }

/* ---------- Reviews ---------- */
.reviews { background: var(--color-bg-alt); }
.review-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-5);
}
.review-card {
  background: #fff;
  border-radius: var(--radius-md);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.review-card .stars { color: var(--color-star); letter-spacing: 2px; }
.review-card p { color: var(--color-text); font-style: italic; }
.review-author { display: flex; align-items: center; gap: var(--space-3); margin-top: auto; }
.review-avatar {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  display: grid; place-items: center;
  font-weight: 700;
  flex-shrink: 0;
}
.review-author strong { font-size: 0.9rem; }
.review-author span { font-size: 0.78rem; color: var(--color-text-muted); }

/* ---------- Zone / map ---------- */
.zone .container { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-8); align-items: center; }
.zone-map { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-md); border: 1px solid var(--color-border); }
.zone-map iframe { width: 100%; height: 380px; border: 0; display: block; }
.zone-cities { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-top: var(--space-5); }
.zone-cities li {
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.85rem;
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
}

/* ---------- FAQ ---------- */
.faq-list { max-width: 760px; margin-inline: auto; display: flex; flex-direction: column; gap: var(--space-3); }
.faq-item { border: 1px solid var(--color-border); border-radius: var(--radius-md); overflow: hidden; background: #fff; }
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: var(--space-4) var(--space-5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 700;
  gap: var(--space-4);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .icon { flex-shrink: 0; transition: transform var(--transition); color: var(--color-accent); }
.faq-item[open] summary .icon { transform: rotate(45deg); }
.faq-item .faq-body { padding: 0 var(--space-5) var(--space-5); font-size: 0.92rem; color: var(--color-text-muted); }

/* ---------- CTA banner ---------- */
.cta-banner {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: var(--space-8) var(--space-6);
  text-align: center;
  margin-inline: var(--space-5);
}
.cta-banner h2 { color: #fff; margin-bottom: var(--space-3); }
.cta-banner p { color: rgba(255,255,255,0.85); max-width: 50ch; margin-inline: auto; margin-bottom: var(--space-6); }
.cta-banner .hero-ctas { justify-content: center; }

/* ---------- Forms ---------- */
.form-card {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--space-6);
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
.form-grid .full { grid-column: 1 / -1; }
.field { display: flex; flex-direction: column; gap: var(--space-2); margin-bottom: var(--space-4); }
.field label { font-weight: 600; font-size: 0.88rem; }
.field input, .field textarea, .field select {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.75rem 0.9rem;
  font-size: 0.95rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  background: #fff;
  color: var(--color-text);
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}
.field textarea { resize: vertical; min-height: 120px; }
.field-hint { font-size: 0.78rem; color: var(--color-text-muted); }
.honeypot { position: absolute; left: -9999px; top: -9999px; }
.form-status {
  margin-top: var(--space-4);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
}
.form-status[hidden] { display: none; }
.form-status.success { background: #e7f8ee; color: var(--color-success); }
.form-status.error { background: #fdecec; color: #c0392b; }
.star-rating { display: flex; gap: var(--space-1); font-size: 1.6rem; }
.star-rating button { background: none; border: none; color: var(--color-border); transition: color var(--transition); }
.star-rating button.active, .star-rating button:hover { color: var(--color-star); }

/* ---------- Contact page layout ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: var(--space-8); align-items: start; }
.contact-info-list { display: flex; flex-direction: column; gap: var(--space-5); margin-top: var(--space-6); }
.contact-info-item { display: flex; gap: var(--space-4); align-items: flex-start; }
.contact-info-item .why-icon { width: 46px; height: 46px; }
.contact-info-item h3 { font-size: 0.95rem; margin-bottom: 0.2rem; }
.contact-info-item p, .contact-info-item a { font-size: 0.9rem; }
.contact-info-item a:hover { color: var(--color-primary); text-decoration: underline; }

/* ---------- Page hero (sous-pages) ---------- */
.page-hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #fff;
  padding-block: var(--space-8);
  text-align: center;
}
.page-hero h1 { color: #fff; }
.page-hero p { color: rgba(255,255,255,0.85); max-width: 50ch; margin-inline: auto; margin-top: var(--space-3); }
.breadcrumb { font-size: 0.82rem; color: rgba(255,255,255,0.7); margin-bottom: var(--space-3); }
.breadcrumb a { text-decoration: underline; }

/* ---------- Footer ---------- */
.site-footer { background: var(--color-primary-dark); color: rgba(255,255,255,0.8); padding-block: var(--space-10) var(--space-6); }
.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr 1.2fr;
  gap: var(--space-8);
  padding-bottom: var(--space-8);
  border-bottom: 1px solid rgba(255,255,255,0.12);
}
.footer-brand .brand { color: #fff; }
.footer-brand p { color: rgba(255,255,255,0.7); margin-top: var(--space-3); font-size: 0.9rem; max-width: 32ch; }
.site-footer h4 { color: #fff; font-size: 0.95rem; margin-bottom: var(--space-4); }
.site-footer ul { display: flex; flex-direction: column; gap: var(--space-2); font-size: 0.88rem; }
.site-footer a:hover { color: #fff; }
.footer-bottom {
  padding-top: var(--space-5);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: space-between;
  font-size: 0.8rem;
}

/* ---------- Floating buttons ---------- */
.float-actions {
  position: fixed;
  right: var(--space-5);
  bottom: var(--space-5);
  z-index: 400;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.float-btn {
  width: 56px; height: 56px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  box-shadow: var(--shadow-lg);
  color: #fff;
  transition: transform var(--transition);
}
.float-btn:hover { transform: scale(1.08); }
.float-btn.whatsapp { background: #25d366; }
.float-btn.top { background: var(--color-primary); opacity: 0; pointer-events: none; transition: opacity var(--transition), transform var(--transition); }
.float-btn.top.visible { opacity: 1; pointer-events: auto; }
.float-btn .icon { width: 26px; height: 26px; }

.mobile-call-bar {
  display: none;
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 400;
  background: var(--color-primary-dark);
  padding: var(--space-3) var(--space-4);
  padding-bottom: max(var(--space-3), env(safe-area-inset-bottom));
  gap: var(--space-3);
}
.mobile-call-bar a { flex: 1; }

/* ---------- Reveal on scroll ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
[data-reveal].is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; }
}

/* ---------- Utilities ---------- */
.text-center { text-align: center; }
.mt-8 { margin-top: var(--space-8); }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .hero .container { grid-template-columns: 1fr; }
  .hero-media { order: -1; }
  .zone .container { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  :root { --header-h: 64px; }
  .main-nav { position: fixed; inset: var(--header-h) 0 0 0; background: #fff; flex-direction: column; align-items: stretch; padding: var(--space-6) var(--space-5); transform: translateX(100%); transition: transform var(--transition); overflow-y: auto; }
  .main-nav.open { transform: translateX(0); }
  .main-nav ul { flex-direction: column; gap: var(--space-1); font-size: 1.1rem; }
  .main-nav ul a { display: block; padding: var(--space-3) 0; border-bottom: 1px solid var(--color-border); }
  .main-nav .header-actions { display: flex; margin-top: var(--space-6); flex-direction: column; align-items: stretch; }
  .call-pill { justify-content: center; }
  .nav-toggle { display: inline-flex; }
  .site-header .header-actions.desktop-only { display: none; }
  .hero-float { position: static; margin-top: var(--space-4); }
  .form-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: var(--space-6); }
  .footer-bottom { flex-direction: column; text-align: center; }
  .mobile-call-bar { display: flex; }
  body { padding-bottom: 76px; }
  .float-actions { bottom: 96px; }
  section { padding-block: var(--space-8); }
}

@media (max-width: 480px) {
  .hero-trust { flex-direction: column; gap: var(--space-3); }
}