/* ============================================================
   AVEL SABLAGE — Feuille de style principale
   Palette : Noir #131313 · Or sablé #B8943F · Crème #E8E0D0
   ============================================================ */

/* === Variables === */
:root {
  --noir:       #131313;
  --noir-alt:   #1C1C1C;
  --noir-deep:  #0A0A0A;
  --or:         #B8943F;
  --or-hover:   #D4AF60;
  --or-sombre:  #3A2E14;
  --or-border:  #5A4820;
  --texte:      #E8E0D0;
  --texte-2:    #A89880;
  --max-w:      1200px;
  --nav-h:      72px;
}

/* === Reset === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--noir);
  color: var(--texte);
  font-family: 'Montserrat', sans-serif;
  font-size: 17.5px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--or); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--or-hover); }
ul { list-style: none; }

/* === Typographie === */
h1, h2, h3, h4 {
  font-family: 'Bebas Neue', sans-serif;
  letter-spacing: 0.05em;
  line-height: 1.1;
  color: var(--or);
}
h1 { font-size: clamp(2.8rem, 7vw, 5.5rem); }
h2 { font-size: clamp(2rem, 4.5vw, 3.2rem); }
h3 { font-size: clamp(1.4rem, 2.5vw, 1.9rem); }
h4 { font-size: 1.3rem; }

.label {
  font-family: 'Oswald', sans-serif;
  font-weight: 500;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  font-size: 0.8rem;
  color: var(--texte-2);
  display: block;
}

/* === Layout === */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 1.5rem; }
section { padding: 6rem 0; }
.section-alt { background: var(--noir-alt); }

/* === Séparateur ornement === */
.sep {
  display: flex; align-items: center; gap: 1rem;
  margin: 1.5rem auto;
  max-width: 300px;
}
.sep::before, .sep::after {
  content: ''; flex: 1; height: 1px; background: var(--or-border);
}
.sep__diamond {
  width: 8px; height: 8px;
  background: var(--or);
  transform: rotate(45deg);
  flex-shrink: 0;
}

/* === Navigation === */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h);
  background: rgba(20, 20, 20, 0.97);
  border-bottom: 1px solid var(--or-border);
  backdrop-filter: blur(10px);
}
.nav__inner {
  height: 100%;
  display: flex; align-items: center; justify-content: space-between;
}
.nav__logo img { height: 46px; width: auto; mix-blend-mode: lighten; }
.nav__links {
  display: flex; align-items: center; gap: 2.5rem;
}
.nav__links a {
  font-family: 'Oswald', sans-serif;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 0.88rem;
  color: var(--texte);
}
.nav__links a:hover,
.nav__links a.active { color: var(--or); }
.nav__links .btn-nav {
  color: var(--noir);
  background: var(--or);
  padding: 0.55rem 1.5rem;
  font-family: 'Oswald', sans-serif;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 0.85rem;
}
.nav__links .btn-nav:hover { background: var(--or-hover); color: var(--noir); }

/* Hamburger */
.nav__burger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 4px;
}
.nav__burger span {
  display: block; width: 26px; height: 2px;
  background: var(--or); transition: all 0.3s;
}
.nav__burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__burger.open span:nth-child(2) { opacity: 0; }
.nav__burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Menu mobile */
.nav__mobile {
  display: none; position: fixed;
  top: var(--nav-h); left: 0; right: 0; bottom: 0;
  background: var(--noir); z-index: 99;
  flex-direction: column; align-items: center; justify-content: center; gap: 2.5rem;
}
.nav__mobile.open { display: flex; }
.nav__mobile a {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 2.8rem; letter-spacing: 0.08em;
  color: var(--texte);
}
.nav__mobile a:hover { color: var(--or); }
.nav__mobile .btn-nav-m {
  font-family: 'Oswald', sans-serif;
  font-size: 1rem; letter-spacing: 0.2em; text-transform: uppercase;
  background: var(--or); color: var(--noir);
  padding: 0.85rem 2.5rem;
}

/* === Boutons === */
.btn {
  display: inline-block;
  font-family: 'Oswald', sans-serif;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-size: 0.9rem;
  padding: 0.95rem 2.5rem;
  background: var(--or);
  color: var(--noir);
  border: 2px solid var(--or);
  cursor: pointer;
  transition: background 0.2s, color 0.2s, transform 0.15s;
  line-height: 1;
}
.btn:hover { background: var(--or-hover); border-color: var(--or-hover); color: var(--noir); transform: translateY(-2px); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }
.btn--outline {
  background: transparent;
  color: var(--or);
}
.btn--outline:hover { background: var(--or); color: var(--noir); }
.btn--dark {
  background: var(--noir);
  color: var(--or);
  border-color: var(--noir);
}
.btn--dark:hover { background: var(--noir-alt); border-color: var(--noir-alt); color: var(--or-hover); }

/* === En-tête de page (hors accueil) === */
.page-header {
  padding: calc(var(--nav-h) + 5rem) 0 4rem;
  text-align: center;
  background: var(--noir-alt);
  border-bottom: 1px solid var(--or-border);
}
.page-header .label { margin-bottom: 0.75rem; }
.page-header p {
  color: var(--texte-2);
  max-width: 600px;
  margin: 1rem auto 0;
  font-size: 1rem;
}

/* === En-tête de section === */
.section-header { text-align: center; margin-bottom: 4rem; }
.section-header .label { margin-bottom: 0.75rem; }
.section-header .sep { margin: 1.25rem auto 0; }

/* === Hero === */
.hero {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  text-align: center;
  padding-top: var(--nav-h);
  position: relative; overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse at center, rgba(184,148,63,0.07) 0%, transparent 65%);
  pointer-events: none;
}
.hero__content { position: relative; z-index: 1; padding: 0 1.5rem; }
.hero__logo {
  max-width: min(560px, 78vw);
  margin: 0 auto 2.5rem;
}
.hero__tagline {
  font-family: 'Oswald', sans-serif;
  font-size: clamp(0.9rem, 2.2vw, 1.15rem);
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--texte-2);
  margin-bottom: 2.5rem;
}
.hero__ctas { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.hero__scroll {
  position: absolute; bottom: 2.5rem; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 0.75rem;
}
.hero__scroll span {
  font-family: 'Oswald', sans-serif;
  font-size: 0.7rem; letter-spacing: 0.25em; text-transform: uppercase;
  color: var(--texte-2);
}
.hero__scroll::after {
  content: ''; display: block; width: 1px; height: 50px;
  background: linear-gradient(to bottom, var(--or-border), transparent);
}

/* === Cards services (accueil) === */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px; }
.card {
  background: var(--noir-alt);
  padding: 3rem 2.5rem;
  border-top: 3px solid var(--or-border);
  transition: border-top-color 0.25s, transform 0.25s;
}
.card:hover { border-top-color: var(--or); transform: translateY(-5px); }
.card__icon { width: 48px; height: 48px; margin-bottom: 1.5rem; color: var(--or); }
.card__icon svg { width: 100%; height: 100%; }
.card__title { margin-bottom: 0.75rem; }
.card__text { color: var(--texte-2); font-size: 0.95rem; margin-bottom: 2rem; line-height: 1.65; }
.card__link {
  font-family: 'Oswald', sans-serif;
  font-size: 0.82rem; letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--or); border-bottom: 1px solid var(--or-border); padding-bottom: 2px;
  transition: border-color 0.2s;
}
.card__link:hover { color: var(--or-hover); border-color: var(--or); }

/* === Atouts === */
.atouts { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2px; }
.atout { padding: 3rem 2rem; text-align: center; border-top: 1px solid var(--or-border); }
.atout__val {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 3.5rem; color: var(--or); line-height: 1; margin-bottom: 0.25rem;
}
.atout__label {
  font-family: 'Oswald', sans-serif;
  letter-spacing: 0.15em; text-transform: uppercase;
  font-size: 0.8rem; color: var(--texte);
  margin-bottom: 0.75rem; display: block;
}
.atout p { font-size: 0.88rem; color: var(--texte-2); line-height: 1.6; }

/* === Galerie aperçu accueil === */
.galerie-preview {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px; margin-bottom: 2.5rem;
}
.galerie-preview__item {
  aspect-ratio: 4/3;
  background: var(--noir-alt);
  border: 1px solid var(--or-border);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 0.75rem;
  opacity: 0.45;
}
.galerie-preview__item span {
  font-family: 'Oswald', sans-serif;
  letter-spacing: 0.15em; text-transform: uppercase;
  font-size: 0.78rem; color: var(--texte-2);
}
.galerie-preview__item svg { width: 36px; height: 36px; color: var(--or-border); }

/* === CTA Bandeau === */
.cta-bandeau { background: var(--or); text-align: center; padding: 5rem 0; }
.cta-bandeau h2 { color: var(--noir); margin-bottom: 1rem; }
.cta-bandeau p { color: var(--noir); opacity: 0.8; font-size: 1rem; margin-bottom: 2rem; max-width: 550px; margin-left: auto; margin-right: auto; }
.cta-bandeau .ctas { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* === Page Services === */
.service-block { padding: 5rem 0; border-bottom: 1px solid var(--or-border); }
.service-block:last-child { border-bottom: none; }
.service-block__anchor { display: block; position: relative; top: calc(-1 * var(--nav-h) - 2rem); }
.service-block__head {
  display: flex; align-items: center; gap: 1.5rem; margin-bottom: 1.5rem;
}
.service-block__head svg { width: 56px; height: 56px; color: var(--or); flex-shrink: 0; }
.service-block__desc { color: var(--texte-2); margin-bottom: 2.5rem; max-width: 760px; }
.service-examples {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 1.5rem;
  margin-bottom: 2.5rem;
}
.service-example {
  background: var(--noir-alt); padding: 1.5rem;
  border-left: 3px solid var(--or);
}
.service-example strong {
  display: block;
  font-family: 'Oswald', sans-serif;
  letter-spacing: 0.12em; text-transform: uppercase;
  font-size: 0.82rem; color: var(--or); margin-bottom: 0.4rem;
}
.service-example p { font-size: 0.88rem; color: var(--texte-2); line-height: 1.55; }
.service-technique {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: 'Oswald', sans-serif;
  font-size: 0.82rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--or); border: 1px solid var(--or-border); padding: 0.4rem 1rem;
  margin-right: 0.5rem; margin-bottom: 0.5rem;
}

/* Tableau comparatif */
.table-wrap { overflow-x: auto; margin-top: 3rem; }
.table-compare { width: 100%; border-collapse: collapse; }
.table-compare thead th {
  background: var(--or); color: var(--noir);
  font-family: 'Oswald', sans-serif;
  letter-spacing: 0.12em; text-transform: uppercase;
  padding: 1rem 1.25rem; text-align: left;
  font-size: 0.85rem;
}
.table-compare tbody td {
  padding: 0.85rem 1.25rem;
  border-bottom: 1px solid var(--or-border);
  font-size: 0.88rem; color: var(--texte-2);
}
.table-compare tbody tr:hover td { background: rgba(184,148,63,0.04); color: var(--texte); }
.table-compare td:first-child { font-weight: 500; color: var(--texte); }

/* === Galerie réalisations === */
.filters {
  display: flex; gap: 0.5rem; flex-wrap: wrap; margin-bottom: 2.5rem;
}
.filter-btn {
  background: none; border: 1px solid var(--or-border);
  color: var(--texte-2);
  font-family: 'Oswald', sans-serif;
  letter-spacing: 0.15em; text-transform: uppercase; font-size: 0.8rem;
  padding: 0.5rem 1.25rem; cursor: pointer; transition: all 0.2s;
}
.filter-btn:hover, .filter-btn.active {
  background: var(--or); border-color: var(--or); color: var(--noir);
}
.galerie {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 2px;
}
.galerie__item {
  aspect-ratio: 4/3;
  background: var(--noir-alt); border: 1px solid var(--or-border);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 0.75rem;
  position: relative; overflow: hidden; opacity: 0.4;
  transition: opacity 0.2s;
}
.galerie__item:hover { opacity: 0.6; }
.galerie__item svg { width: 40px; height: 40px; color: var(--or-border); }
.galerie__item span {
  font-family: 'Oswald', sans-serif;
  letter-spacing: 0.15em; text-transform: uppercase;
  font-size: 0.78rem; color: var(--texte-2);
}
.galerie__item[data-category] { cursor: pointer; }

/* === Formulaire contact === */
.contact-layout {
  display: grid; grid-template-columns: 1fr 380px; gap: 5rem;
  align-items: start;
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-group--full { grid-column: 1 / -1; }
.form-group--honeypot { display: none; }
.form-group label {
  font-family: 'Oswald', sans-serif;
  letter-spacing: 0.15em; text-transform: uppercase;
  font-size: 0.75rem; color: var(--texte-2);
}
.form-group label .req { color: var(--or); margin-left: 2px; }
.form-group input:not([type="checkbox"]),
.form-group select,
.form-group textarea {
  background: var(--noir-alt);
  border: 1px solid var(--or-border);
  color: var(--texte);
  font-family: 'Montserrat', sans-serif;
  font-size: 0.95rem;
  padding: 0.85rem 1rem;
  outline: none;
  transition: border-color 0.2s;
  width: 100%;
  appearance: none;
}
.form-group input:not([type="checkbox"]):focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--or); }
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--texte-2); opacity: 0.5; }
.form-group select { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23B8943F' stroke-width='1.5' fill='none'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 1rem center; padding-right: 2.5rem; }
.form-group select option { background: var(--noir-alt); color: var(--texte); }
.form-group textarea { min-height: 150px; resize: vertical; line-height: 1.6; }
.checkbox-group { display: flex; align-items: flex-start; gap: 0.75rem; }
.checkbox-group input[type="checkbox"] {
  flex-shrink: 0; width: 18px; height: 18px;
  margin-top: 3px; accent-color: var(--or); cursor: pointer;
  appearance: auto; -webkit-appearance: checkbox;
}
.checkbox-group label { font-size: 0.83rem; color: var(--texte-2); letter-spacing: 0; text-transform: none; cursor: pointer; }
.checkbox-group label a { color: var(--or); }
.form-actions { margin-top: 0.5rem; }
.form-msg {
  margin-top: 1.25rem; padding: 1rem 1.25rem; display: none;
  font-family: 'Oswald', sans-serif;
  letter-spacing: 0.1em; text-transform: uppercase; font-size: 0.82rem;
}
.form-msg--success { display: block; background: rgba(184,148,63,0.1); border-left: 3px solid var(--or); color: var(--or); }
.form-msg--error   { display: block; background: rgba(180,60,60,0.1); border-left: 3px solid #b43c3c; color: #e08080; }

/* Info contact (page contact) */
.contact-info { display: flex; flex-direction: column; gap: 2rem; }
.contact-item { display: flex; gap: 1rem; align-items: flex-start; }
.contact-item svg { width: 22px; height: 22px; color: var(--or); flex-shrink: 0; margin-top: 3px; }
.contact-item__body .contact-item__label {
  font-family: 'Oswald', sans-serif;
  letter-spacing: 0.15em; text-transform: uppercase;
  font-size: 0.73rem; color: var(--texte-2); margin-bottom: 0.25rem;
}
.contact-item__body a, .contact-item__body p { font-size: 0.95rem; color: var(--texte); }
.contact-item__body a:hover { color: var(--or); }

/* === Page À propos === */
.valeurs { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2px; }
.valeur {
  background: var(--noir-alt); padding: 2.5rem;
  border-top: 2px solid var(--or);
}
.valeur h3 { font-size: 1.4rem; margin-bottom: 0.75rem; }
.valeur p { font-size: 0.92rem; color: var(--texte-2); line-height: 1.65; }
.zones { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 1.5rem; }
.zone-tag {
  border: 1px solid var(--or-border); color: var(--texte-2);
  font-family: 'Oswald', sans-serif;
  letter-spacing: 0.12em; text-transform: uppercase;
  font-size: 0.75rem; padding: 0.35rem 0.9rem;
}
.rcpro-box {
  background: var(--noir-alt); border: 1px solid var(--or-border);
  border-left: 3px solid var(--or);
  padding: 2rem 2.5rem; margin-top: 3rem;
}
.rcpro-box h3 { margin-bottom: 0.75rem; }
.rcpro-box p { font-size: 0.9rem; color: var(--texte-2); }

/* === Pages légales === */
.legal { padding-top: calc(var(--nav-h) + 4rem); padding-bottom: 5rem; }
.legal__body { max-width: 820px; }
.legal__body h2 {
  font-size: 1.6rem; margin: 2.5rem 0 0.75rem; padding-top: 1rem;
  border-top: 1px solid var(--or-border);
}
.legal__body h2:first-child { border-top: none; margin-top: 0; }
.legal__body h3 { font-size: 1.2rem; color: var(--texte); margin: 1.5rem 0 0.5rem; }
.legal__body p, .legal__body li { font-size: 0.92rem; color: var(--texte-2); line-height: 1.75; margin-bottom: 0.6rem; }
.legal__body ul { padding-left: 1.25rem; list-style: disc; }
.legal__body a { color: var(--or); }

/* === Footer === */
.footer {
  background: var(--noir-deep);
  border-top: 1px solid var(--or-border);
  padding: 4.5rem 0 2.5rem;
}
.footer__grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 3rem;
  margin-bottom: 3rem;
}
.footer__logo img { height: 80px; width: auto; margin-bottom: 1.25rem; mix-blend-mode: lighten; }
.footer__tagline { font-size: 0.85rem; color: var(--texte-2); line-height: 1.7; }
.footer__heading {
  font-family: 'Oswald', sans-serif;
  letter-spacing: 0.22em; text-transform: uppercase;
  font-size: 0.75rem; color: var(--or); margin-bottom: 1.25rem;
}
.footer__links { display: flex; flex-direction: column; gap: 0.65rem; }
.footer__links a { font-size: 0.88rem; color: var(--texte-2); transition: color 0.2s; }
.footer__links a:hover { color: var(--or); }
.footer__contact p, .footer__contact a { font-size: 0.88rem; color: var(--texte-2); line-height: 1.9; }
.footer__contact a:hover { color: var(--or); }
.footer__bottom {
  border-top: 1px solid var(--or-border); padding-top: 1.75rem;
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem;
}
.footer__bottom p, .footer__bottom a { font-size: 0.78rem; color: var(--texte-2); }
.footer__bottom a:hover { color: var(--or); }
.footer__legal-links { display: flex; gap: 1.5rem; }

/* === Animations scroll === */
.fade-in { opacity: 0; transform: translateY(24px); transition: opacity 0.65s ease, transform 0.65s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }
.fade-in:nth-child(2) { transition-delay: 0.1s; }
.fade-in:nth-child(3) { transition-delay: 0.2s; }
.fade-in:nth-child(4) { transition-delay: 0.3s; }

/* === Responsive === */
@media (max-width: 1024px) {
  .atouts { grid-template-columns: repeat(2, 1fr); }
  .contact-layout { grid-template-columns: 1fr; gap: 3rem; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  section { padding: 4rem 0; }
  .nav__links { display: none; }
  .nav__burger { display: flex; }
  .cards { grid-template-columns: 1fr; gap: 2px; }
  .atouts { grid-template-columns: 1fr 1fr; gap: 2px; }
  .galerie-preview { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .valeurs { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer__bottom { flex-direction: column; align-items: flex-start; }
  .hero__logo { max-width: 90vw; }
  h1 { font-size: 2.4rem; }
  h2 { font-size: 1.8rem; }
}

@media (max-width: 480px) {
  .atouts { grid-template-columns: 1fr; }
  .hero__ctas { flex-direction: column; align-items: center; }
  .cta-bandeau .ctas { flex-direction: column; align-items: center; }
}