/* ==========================================================================
   Officéo-Notaires — Maître Edouard NOEL
   Palette « image d'Épinal » : encre, vermillon, papier, or
   ========================================================================== */

:root {
  --encre: #1B3A5B;
  --encre-soft: #2a4d73;
  --vermillon: #C0392B;
  --vermillon-soft: #d45244;
  --papier: #F7F3E9;
  --papier-dark: #ebe5d6;
  --or: #B8943F;
  --or-light: #d4b56a;
  --texte: #3a4550;
  --texte-clair: rgba(247, 243, 233, 0.92);
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--papier);
  color: var(--texte);
  overflow-x: hidden;
}

/* Grain papier subtil (CSS pur, pas d'image) */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9998;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.site-container {
  width: 100%;
  max-width: 1180px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

@media (min-width: 1024px) {
  .site-container {
    padding-left: 2rem;
    padding-right: 2rem;
  }
}

section[id] {
  scroll-margin-top: 92px;
}

@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;
  }
  [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
  }
}

/* --------------------------------------------------------------------------
   Header sticky
   -------------------------------------------------------------------------- */
#site-header {
  background: rgba(27, 58, 91, 0.96);
  border-bottom: 1px solid rgba(184, 148, 63, 0.25);
  box-shadow: 0 2px 20px rgba(27, 58, 91, 0.12);
}

#site-header.scrolled {
  background: rgba(247, 243, 233, 0.98);
  backdrop-filter: blur(12px);
  border-bottom-color: rgba(27, 58, 91, 0.12);
  box-shadow: 0 4px 24px rgba(27, 58, 91, 0.08);
}

.nav-brand {
  color: var(--papier);
  transition: color 0.25s ease;
}

#site-header.scrolled .nav-brand,
#site-header.scrolled .nav-brand span {
  color: var(--encre);
}

.nav-brand-sub {
  color: var(--or-light);
  font-size: 0.65rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

#site-header.scrolled .nav-brand-sub {
  color: var(--or);
}

.nav-link {
  color: rgba(247, 243, 233, 0.88);
  position: relative;
  transition: color 0.25s ease;
}

#site-header.scrolled .nav-link {
  color: var(--encre);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  height: 1px;
  width: 0;
  background: var(--vermillon);
  transition: width 0.3s ease;
}

.nav-link:hover {
  color: var(--papier);
}

#site-header.scrolled .nav-link:hover {
  color: var(--vermillon);
}

.nav-link:hover::after {
  width: 100%;
}

.btn-cta-header {
  background: var(--vermillon);
  color: var(--papier);
  border: 1px solid var(--vermillon);
  transition: background 0.25s, color 0.25s, border-color 0.25s;
}

.btn-cta-header:hover {
  background: transparent;
  color: var(--papier);
  border-color: var(--or);
}

#site-header.scrolled .btn-cta-header {
  background: var(--encre);
  border-color: var(--encre);
  color: var(--papier);
}

#site-header.scrolled .btn-cta-header:hover {
  background: var(--vermillon);
  border-color: var(--vermillon);
}

/* Burger — visible uniquement en dessous de lg (1024px) */
#burger {
  width: 44px;
  height: 44px;
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 6px;
  border: 1px solid rgba(184, 148, 63, 0.4);
  border-radius: 4px;
  background: transparent;
  cursor: pointer;
}

@media (max-width: 1023px) {
  #burger {
    display: flex;
  }
}

#burger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--papier);
  transition: transform 0.3s ease, opacity 0.3s ease, background 0.3s;
}

#site-header.scrolled #burger span {
  background: var(--encre);
}

#burger.open span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

#burger.open span:nth-child(2) {
  opacity: 0;
}

#burger.open span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

#mobile-menu {
  position: fixed;
  inset: 0;
  top: 0;
  z-index: 40;
  background: rgba(27, 58, 91, 0.98);
  padding: 6rem 1.5rem 2rem;
  transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  overflow-y: auto;
}

@media (min-width: 1024px) {
  #mobile-menu {
    display: none !important;
  }
}

#mobile-menu.open {
  transform: translateX(0);
}

.mobile-link {
  display: block;
  padding: 0.85rem 0;
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 1.5rem;
  color: var(--papier);
  border-bottom: 1px solid rgba(184, 148, 63, 0.2);
}

.mobile-link:hover {
  color: var(--or-light);
}

/* --------------------------------------------------------------------------
   Cadre estampe (réutilisable)
   -------------------------------------------------------------------------- */
.estampe-frame {
  position: relative;
  background: var(--papier);
  border: 2px solid var(--encre);
  box-shadow:
    inset 0 0 0 4px var(--papier),
    inset 0 0 0 5px var(--or),
    8px 12px 32px rgba(27, 58, 91, 0.12);
}

.estampe-frame::before,
.estampe-frame::after {
  content: "";
  position: absolute;
  width: 12px;
  height: 12px;
  border: 1px solid var(--or);
  pointer-events: none;
}

.estampe-frame::before {
  top: 8px;
  left: 8px;
  border-right: none;
  border-bottom: none;
}

.estampe-frame::after {
  bottom: 8px;
  right: 8px;
  border-left: none;
  border-top: none;
}

/* Séparateur ornemental */
.ornament {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 2rem auto;
  max-width: 280px;
  color: var(--or);
}

.ornament::before,
.ornament::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--or), transparent);
}

.ornament-diamond {
  width: 6px;
  height: 6px;
  background: var(--vermillon);
  transform: rotate(45deg);
  flex-shrink: 0;
}

/* Boutons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  background: var(--vermillon);
  color: var(--papier);
  border: 1px solid var(--vermillon);
  transition: background 0.25s, color 0.25s, transform 0.2s;
}

.btn-primary:hover {
  background: var(--encre);
  border-color: var(--encre);
  transform: translateY(-1px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.75rem;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--encre);
  border: 1px solid var(--encre);
  background: transparent;
  transition: background 0.25s, color 0.25s;
}

.btn-secondary:hover {
  background: var(--encre);
  color: var(--papier);
}

/* Cartes expertises */
.card-expertise {
  background: var(--papier);
  border: 1px solid rgba(27, 58, 91, 0.15);
  position: relative;
  transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s;
}

.card-expertise::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--encre), var(--vermillon));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s ease;
}

.card-expertise:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(27, 58, 91, 0.1);
  border-color: var(--or);
}

.card-expertise:hover::before {
  transform: scaleX(1);
}

.card-expertise svg {
  stroke: var(--encre);
  transition: stroke 0.3s;
}

.card-expertise:hover svg {
  stroke: var(--vermillon);
}

/* Étapes démarches — planche d'images */
.step-panel {
  position: relative;
  padding: 1.5rem;
  background: var(--papier);
  border: 1px solid rgba(27, 58, 91, 0.2);
  text-align: center;
}

.step-panel .step-num {
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--vermillon);
  line-height: 1;
}

.step-connector {
  display: none;
}

@media (min-width: 768px) {
  .step-connector {
    display: block;
    position: absolute;
    top: 50%;
    right: -1.5rem;
    width: 3rem;
    height: 1px;
    background: repeating-linear-gradient(
      90deg,
      var(--or) 0,
      var(--or) 4px,
      transparent 4px,
      transparent 8px
    );
    transform: translateY(-50%);
    z-index: 1;
  }

  .steps-grid .step-panel:last-child .step-connector {
    display: none;
  }
}

/* Actualités */
.card-actu {
  border: 1px solid rgba(27, 58, 91, 0.12);
  background: #fff;
  transition: box-shadow 0.3s, border-color 0.3s;
}

.card-actu:hover {
  border-color: var(--or);
  box-shadow: 0 8px 24px rgba(27, 58, 91, 0.08);
}

.card-actu .actu-date {
  color: var(--vermillon);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* Formulaire */
.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid rgba(27, 58, 91, 0.25);
  background: #fff;
  color: var(--texte);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-input:focus {
  outline: none;
  border-color: var(--encre);
  box-shadow: 0 0 0 3px rgba(27, 58, 91, 0.12);
}

.form-input.error {
  border-color: var(--vermillon);
}

.form-error {
  font-size: 0.8rem;
  color: var(--vermillon);
  margin-top: 0.25rem;
}

.form-success {
  display: none;
  padding: 1rem 1.25rem;
  background: rgba(27, 58, 91, 0.08);
  border-left: 3px solid var(--or);
  color: var(--encre);
}

.form-success.visible {
  display: block;
}

/* Sections alternées */
.section-encre {
  background: var(--encre);
  color: var(--texte-clair);
}

.section-encre .text-muted {
  color: rgba(247, 243, 233, 0.75);
}

/* Reveal animations */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

[data-reveal="left"] {
  transform: translateX(-24px);
}

[data-reveal="left"].is-visible {
  transform: translateX(0);
}

[data-reveal="right"] {
  transform: translateX(24px);
}

[data-reveal="right"].is-visible {
  transform: translateX(0);
}

/* Cookie banner */
#cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 9999;
  background: var(--encre);
  color: var(--papier);
  padding: 1rem 1.25rem;
  border-top: 2px solid var(--or);
  transform: translateY(100%);
  transition: transform 0.4s ease;
}

#cookie-banner.visible {
  transform: translateY(0);
}

#cookie-banner.hidden-permanent {
  display: none;
}

/* Back to top */
#back-to-top {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 30;
  width: 44px;
  height: 44px;
  background: var(--encre);
  color: var(--papier);
  border: 1px solid var(--or);
  border-radius: 4px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s, transform 0.2s;
}

#back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

#back-to-top:hover {
  background: var(--vermillon);
  transform: translateY(-2px);
}

/* Mentions légales modal/section */
#mentions-legales {
  background: var(--papier-dark);
}