:root {
  --color-bg: #f7f7f5;
  --color-surface: #ffffff;
  --color-text: #1a1614;
  --color-text-muted: #6b625c;
  --color-border: #e8e3de;

  --color-ink: #161616;
  --color-ink-alt: #201c1a;
  --color-ink-text: #f4f1ee;
  --color-ink-muted: #b3aaa3;

  --color-accent: #c9401f;
  --color-accent-dark: #9c3018;
  --color-gold: #c9971f;
  --color-gold-dark: #8a651a;

  --font-heading: 'Oswald', 'Arial Narrow', 'Helvetica Neue', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --transition-base: 0.3s ease;
  --max-width: 1200px;
}

*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; }

h1, h2, h3 {
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin: 0 0 0.5em;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section { padding: 5rem 0; }

.btn {
  display: inline-block;
  padding: 0.85rem 1.75rem;
  border-radius: 999px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform var(--transition-base), background var(--transition-base), border-color var(--transition-base);
}

.btn-primary { background: var(--color-accent); color: #fff; }
.btn-primary:hover { background: var(--color-accent-dark); transform: translateY(-2px); }

.btn-secondary { background: transparent; border-color: var(--color-ink); color: var(--color-ink); }
.btn-secondary:hover { border-color: var(--color-accent); color: var(--color-accent); transform: translateY(-2px); }

#hero .btn-secondary,
#site-footer .btn-secondary,
#contact-hero .btn-secondary {
  border-color: var(--color-ink-muted);
  color: var(--color-ink-text);
}

#hero .btn-secondary:hover,
#site-footer .btn-secondary:hover,
#contact-hero .btn-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-ink-text);
}

.btn-whatsapp {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  transition: transform var(--transition-base);
}

.btn-whatsapp img { width: 100%; height: 100%; object-fit: contain; }
.btn-whatsapp:hover { transform: scale(1.08); }

/* Header */
#site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-surface);
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition-base);
}

#site-header.is-scrolled { box-shadow: 0 2px 16px rgba(20, 22, 26, 0.1); }

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 84px;
  padding: 0 1.5rem;
  transition: min-height var(--transition-base);
}
#site-header.is-scrolled .nav-inner { min-height: 72px; }

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-heading);
  font-weight: 700;
  text-decoration: none;
  color: inherit;
}

.nav-logo img { width: 64px; height: 64px; border-radius: 8px; }

.nav-menu { display: flex; align-items: center; gap: 2rem; }
.nav-links { display: flex; gap: 2rem; }
.nav-bar-actions { display: flex; align-items: center; gap: 1rem; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  color: inherit;
  cursor: pointer;
  padding: 0;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 0 auto;
  background: currentColor;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

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

.nav-links a { text-decoration: none; font-weight: 500; position: relative; padding-bottom: 0.25rem; }
.nav-links a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition-base);
}
.nav-links a:hover::after, .nav-links a.is-active::after { width: 100%; }

.nav-actions { display: flex; align-items: center; gap: 1rem; }

#lang-toggle {
  background: none;
  border: 1px solid var(--color-border);
  color: inherit;
  border-radius: 999px;
  padding: 0.4rem 0.9rem;
  font-size: 0.85rem;
  cursor: pointer;
}

/* Hero */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  text-align: center;
  background: var(--color-ink);
  color: var(--color-ink-text);
}

.hero-bg { position: absolute; inset: 0; z-index: 0; overflow: hidden; }
.hero-bg-zoom {
  position: absolute;
  inset: -5%;
  background: url('images/shop/hero.jpg') center / cover no-repeat;
  animation: hero-bg-zoom 20s ease-in-out infinite alternate;
}
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.35), rgba(0, 0, 0, 0.7));
}
@keyframes hero-bg-zoom { from { transform: scale(1); } to { transform: scale(1.12); } }

.hero-content { position: relative; z-index: 1; }
.hero-title { font-size: clamp(2.5rem, 8vw, 5rem); margin-bottom: 0.3em; opacity: 0; animation: hero-fade-up 0.8s ease-out 0.6s forwards; }
.hero-tagline {
  color: var(--color-gold);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0;
  animation: hero-fade-up 0.8s ease-out 0.9s forwards;
}
.hero-subtitle { max-width: 560px; margin: 0.5em auto 1em; color: var(--color-ink-muted); opacity: 0; animation: hero-fade-up 0.8s ease-out 1.1s forwards; }

.price-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 999px;
  padding: 0.5rem 1.1rem;
  font-size: 0.9rem;
  color: var(--color-ink-text);
  margin-bottom: 1.5rem;
  opacity: 0;
  animation: hero-fade-up 0.8s ease-out 1.2s forwards;
}
.price-tag strong { color: var(--color-gold); }

.hero-ctas { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; opacity: 0; animation: hero-fade-up 0.8s ease-out 1.3s forwards; }

@keyframes hero-fade-up { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }

@media (prefers-reduced-motion: reduce) {
  .hero-title, .hero-tagline, .hero-subtitle, .hero-ctas, .price-tag, .hero-bg-zoom, #hero-bg {
    animation: none !important; opacity: 1 !important; transform: none !important;
  }
  #back-to-top { transition: none; }
  html { scroll-behavior: auto; }
}

/* Reveal on scroll */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px) rotateX(6deg);
  transition: opacity 0.6s ease, transform 0.6s ease;
  transition-delay: calc(var(--reveal-index, 0) * 80ms);
}
[data-reveal].is-revealed { opacity: 1; transform: translateY(0) rotateX(0deg); }
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { transition: none; transform: none; opacity: 1; }
}

.section-subtitle { color: var(--color-text-muted); max-width: 560px; margin-bottom: 2.5rem; }

/* Services */
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1.5rem; }

.service-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 1.75rem;
  box-shadow: 0 1px 3px rgba(20, 22, 26, 0.06);
  transition: transform 0.15s ease, border-color var(--transition-base), box-shadow 0.2s ease;
  position: relative;
  overflow: hidden;
}
.service-card:hover { border-color: var(--color-accent); box-shadow: 0 12px 30px -12px rgba(201, 64, 31, 0.35); }
.service-card h3 { font-size: 1.15rem; color: var(--color-ink); }
.service-card p { color: var(--color-text-muted); font-size: 0.95rem; }

.service-card-image, .about-image {
  border-radius: 10px;
  background-color: var(--color-border);
  background-size: cover;
  background-position: center;
}
.service-card-image { aspect-ratio: 16 / 10; margin: -1.75rem -1.75rem 1.25rem; border-radius: 12px 12px 0 0; }
.about-image { aspect-ratio: 4 / 3; min-height: 260px; background-image: url('images/shop/about.jpg'); }

.service-card-image--seats { background-image: url('images/shop/service-seats.jpg'); }
.service-card-image--roof { background-image: url('images/shop/service-roof.jpg'); }
.service-card-image--materials { background-image: url('images/shop/service-materials.jpg'); }

/* About */
.about-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 2.5rem; align-items: center; }
.about-inner { max-width: 760px; }
.about-body { color: var(--color-text-muted); font-size: 1.05rem; margin-bottom: 1.5rem; }
.about-bullets { list-style: none; padding: 0; display: grid; gap: 0.75rem; }
.about-bullets li { position: relative; padding-left: 1.5rem; }
.about-bullets li::before {
  content: ''; position: absolute; left: 0; top: 0.5em; width: 8px; height: 8px;
  background: var(--color-accent); border-radius: 50%;
}

/* Core beliefs / commitments */
.beliefs-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 1.25rem; margin-top: 2rem; }
.belief-tile {
  display: flex; flex-direction: column; align-items: center; gap: 0.6rem; text-align: center;
  padding: 1.25rem 1rem; background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: 12px; box-shadow: 0 1px 3px rgba(20, 22, 26, 0.06); font-size: 0.9rem; color: var(--color-text);
}
.belief-icon { width: 32px; height: 32px; color: var(--color-accent); }

/* Gallery / before-after */
.gallery-filters { display: flex; gap: 0.75rem; margin-bottom: 2rem; flex-wrap: wrap; }
.filter-btn {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 0.55rem 1.3rem;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  transition: background var(--transition-base), color var(--transition-base), border-color var(--transition-base);
}
.filter-btn.is-active { background: var(--color-accent); color: #fff; border-color: var(--color-accent); }
.filter-btn:hover:not(.is-active) { border-color: var(--color-accent); color: var(--color-accent); }

.gallery-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(380px, 1fr)); gap: 1.75rem; margin-bottom: 2rem; }

.ba-tile {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(20, 22, 26, 0.06);
  transition: border-color var(--transition-base), box-shadow 0.2s ease;
  cursor: pointer;
}
.ba-tile:hover, .ba-tile:active { border-color: var(--color-accent); box-shadow: 0 12px 26px -14px rgba(0, 0, 0, 0.4); }

.ba-images { display: flex; gap: 2px; }
.ba-half { position: relative; flex: 1 1 50%; aspect-ratio: 3 / 4; overflow: hidden; }
.ba-img { display: block; width: 100%; height: 100%; object-fit: cover; }

.ba-badge {
  position: absolute;
  top: 0.6rem;
  left: 0.6rem;
  background: rgba(22, 22, 22, 0.75);
  color: #fff;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  pointer-events: none;
}

.ba-caption { padding: 0.75rem 1rem; font-size: 0.85rem; color: var(--color-text-muted); border-top: 1px solid var(--color-border); }

.gallery-instagram-cta { display: flex; justify-content: center; margin-top: 0.5rem; }

/* Lightbox */
.lightbox { position: fixed; inset: 0; background: rgba(0, 0, 0, 0.85); display: flex; align-items: center; justify-content: center; z-index: 200; }
.lightbox[hidden] { display: none; }
.lightbox-content { width: min(90vw, 560px); }
.lightbox-tile { width: 100%; cursor: default; }
.lightbox-close { position: absolute; top: 1.5rem; right: 1.5rem; background: none; border: none; color: #fff; font-size: 2rem; cursor: pointer; }

/* FAQ */
.faq-list { display: grid; gap: 0.75rem; }
.faq-item { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: 10px; padding: 1rem 1.25rem; }
.faq-item summary { cursor: pointer; font-weight: 600; color: var(--color-ink); list-style: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '+'; float: right; color: var(--color-accent); font-weight: 700; }
.faq-item[open] summary::after { content: '\2212'; }
.faq-item p { color: var(--color-text-muted); margin: 0.75rem 0 0; font-size: 0.95rem; }

/* Contact block (no map coordinates available) */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2.5rem; align-items: center; }
.contact-info h2 { margin-bottom: 0.75rem; }
.contact-info p { color: var(--color-text-muted); margin-bottom: 1.5rem; }
.contact-link {
  display: flex; align-items: center; gap: 0.6rem; text-decoration: none; color: var(--color-text);
  padding: 0.75rem 0; border-bottom: 1px solid var(--color-border); font-weight: 600;
}
.contact-link:hover { color: var(--color-accent); }
.contact-actions { display: flex; gap: 1rem; flex-wrap: wrap; margin-top: 1.5rem; }
.contact-visual {
  aspect-ratio: 4 / 3;
  border-radius: 12px;
  background: url('images/shop/about.jpg') center / cover no-repeat;
}

@media (max-width: 800px) {
  .contact-grid { grid-template-columns: 1fr; }
}

/* Map */
.map-block {
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  margin-bottom: 1.5rem;
}
.map-block iframe { width: 100%; height: 360px; border: 0; display: block; }

/* Contact page hero */
#contact-hero {
  position: relative;
  min-height: 45vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  text-align: center;
  background: var(--color-ink);
  color: var(--color-ink-text);
}
.contact-hero-bg { position: absolute; inset: 0; background: url('images/shop/contact-hero.svg') center / cover no-repeat; }
.contact-hero-bg::after {
  content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(19, 16, 14, 0.75), rgba(19, 16, 14, 0.55));
}
.contact-hero-content { position: relative; z-index: 1; }
.contact-hero-content h1 { font-size: clamp(2rem, 6vw, 3.25rem); margin-bottom: 0.4em; }
.contact-hero-content p { max-width: 520px; margin: 0 auto 1.5em; color: var(--color-ink-muted); }

.devis-container { max-width: 700px; }
#devis-form { display: grid; gap: 1rem; }
#devis-form label { display: grid; gap: 0.4rem; font-size: 0.9rem; color: var(--color-text-muted); }
#devis-form input, #devis-form select, #devis-form textarea {
  background: var(--color-surface); border: 1px solid var(--color-border); border-radius: 8px;
  padding: 0.7rem 0.9rem; color: var(--color-text); font-family: var(--font-body); font-size: 1rem;
}
#devis-form input:focus, #devis-form select:focus, #devis-form textarea:focus { outline: none; border-color: var(--color-accent); }
.form-errors { color: var(--color-accent); font-size: 0.9rem; min-height: 1.2em; }
.form-note { color: var(--color-text-muted); font-size: 0.85rem; margin-top: -0.5rem; }

/* Footer */
#site-footer { background: var(--color-ink); color: var(--color-ink-text); padding: 3rem 0 5.5rem; margin-top: 4rem; }
.footer-inner { display: grid; gap: 2rem; }
.footer-columns { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 2rem; }
.footer-brand { display: flex; gap: 1rem; align-items: flex-start; }
.footer-brand img { border-radius: 8px; }
.footer-brand p { color: var(--color-ink-muted); font-size: 0.9rem; margin: 0.25rem 0 0; }
.footer-col h4 { font-family: var(--font-heading); text-transform: uppercase; letter-spacing: 0.03em; font-size: 0.9rem; margin: 0 0 0.75rem; color: var(--color-ink-text); }
.footer-links { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.footer-col .footer-links { flex-direction: column; gap: 0.6rem; }
.footer-links a { text-decoration: none; color: var(--color-ink-muted); }
.footer-links a:hover { color: var(--color-accent); }
.footer-legal { border-top: 1px solid rgba(244, 241, 238, 0.12); margin-top: 1rem; padding-top: 1.5rem; text-align: center; }
.footer-copyright { color: var(--color-ink-muted); font-size: 0.85rem; margin: 0; }

/* Floating buttons */
#back-to-top {
  position: fixed; right: 1.5rem; bottom: 1.5rem; width: 44px; height: 44px; border-radius: 50%;
  border: none; background: var(--color-ink); color: var(--color-ink-text); display: flex; align-items: center;
  justify-content: center; cursor: pointer; opacity: 0; pointer-events: none; transform: translateY(10px);
  transition: opacity var(--transition-base), transform var(--transition-base), background var(--transition-base);
  z-index: 90;
}
#back-to-top.is-visible { opacity: 1; pointer-events: auto; transform: translateY(0); }
#back-to-top svg { width: 20px; height: 20px; }
#back-to-top:hover { background: var(--color-accent); }

#whatsapp-float { position: fixed; left: 1.5rem; bottom: 1.5rem; width: 56px; height: 56px; box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3); z-index: 90; }
#whatsapp-float svg { width: 26px; height: 26px; }

.btn:active { transform: translateY(0) scale(0.97); }

/* Responsive */
@media (max-width: 900px) {
  .nav-menu {
    position: fixed; inset: 0; flex-direction: column; justify-content: center; align-items: center;
    gap: 2.5rem; background: var(--color-bg); color: var(--color-text); transform: translateX(100%);
    transition: transform 0.35s ease; z-index: 150;
  }
  .nav-menu.is-open { transform: translateX(0); }
  .nav-links { flex-direction: column; align-items: center; gap: 1.75rem; font-size: 1.4rem; }
  .nav-actions { flex-direction: column; gap: 1.25rem; }
  .nav-toggle { display: flex; }
  body.nav-open { overflow: hidden; }
  .hero-title { font-size: clamp(2.2rem, 10vw, 3.5rem); }
  .about-grid { grid-template-columns: 1fr; }
  .about-image { min-height: 200px; }
  .footer-columns { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 560px) {
  .section { padding: 3.5rem 0; }
  #hero { min-height: 100vh; min-height: 100svh; }
  .services-grid, .gallery-grid { grid-template-columns: 1fr; }
  .beliefs-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-columns { grid-template-columns: 1fr; }
  .nav-logo span { font-size: 0.85rem; }
  #devis-form input, #devis-form select, #devis-form textarea { font-size: 16px; }
}