/* ============================================
   Coopérative Agricole Mbanza Kongo
   Palette : terre, ocre, sauge — Angola
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,500;9..144,700;9..144,900&family=Outfit:wght@300;400;500;600&display=swap');

:root {
  --terre: #8B4513;
  --terre-claire: #C8916B;
  --ocre: #D4A574;
  --ocre-pale: #EDD9B8;
  --sauge: #6B8E5A;
  --sauge-foncee: #4A6B3E;
  --creme: #FAF3E7;
  --creme-doux: #F5EBD8;
  --noir: #2B1810;
  --rouge-kongo: #A0341B;

  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Outfit', sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background: var(--creme);
  color: var(--noir);
  line-height: 1.65;
  font-weight: 400;
  overflow-x: hidden;
}

/* Texture papier en fond */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(139, 69, 19, 0.04) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(107, 142, 90, 0.04) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

/* ============ NAVIGATION ============ */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--creme);
  border-bottom: 1px solid rgba(139, 69, 19, 0.15);
  backdrop-filter: blur(10px);
}

.nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 1.2rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.4rem;
  color: var(--terre);
  text-decoration: none;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.logo-img {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-text span {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--sauge-foncee);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-top: 2px;
}

/* Cacher l'ancien <span> inline qui était dans le logo */
.logo > span {
  display: block;
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--sauge-foncee);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-top: 2px;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

.nav-links a {
  color: var(--noir);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s;
  position: relative;
}

.nav-links a:hover {
  color: var(--rouge-kongo);
}

.nav-links a.active {
  color: var(--rouge-kongo);
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 100%;
  height: 2px;
  background: var(--rouge-kongo);
}

.lang-switch {
  display: flex;
  gap: 0.4rem;
  align-items: center;
  padding-left: 1.2rem;
  border-left: 1px solid rgba(139, 69, 19, 0.2);
}

.lang-switch a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  text-decoration: none;
  font-size: 1.3rem;
  line-height: 1;
  transition: all 0.2s;
  border: 2px solid transparent;
  filter: grayscale(50%);
  opacity: 0.6;
}

.lang-switch a:hover {
  filter: grayscale(0%);
  opacity: 1;
  transform: scale(1.1);
}

.lang-switch a.active {
  filter: grayscale(0%);
  opacity: 1;
  border-color: var(--terre);
  background: var(--creme-doux);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--terre);
}

/* ============ HERO ============ */
.hero {
  position: relative;
  padding: 0;
  overflow: hidden;
  min-height: 85vh;
  display: flex;
  align-items: center;
  background-image: url('hero.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

/* Voile dégradé pour la lisibilité du texte */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(105deg,
      rgba(20, 12, 8, 0.85) 0%,
      rgba(43, 24, 16, 0.65) 35%,
      rgba(43, 24, 16, 0.25) 65%,
      rgba(43, 24, 16, 0.1) 100%);
  z-index: 1;
}

/* Texture grain subtile pour de la profondeur */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 30% 50%, rgba(212, 165, 116, 0.15) 0%, transparent 50%);
  z-index: 1;
  pointer-events: none;
}

.hero-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 6rem 2rem;
  width: 100%;
  position: relative;
  z-index: 2;
}

.hero-text {
  max-width: 680px;
}

.hero-text h1 {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6.5vw, 5.5rem);
  font-weight: 900;
  line-height: 0.95;
  letter-spacing: -0.03em;
  color: var(--creme);
  margin-bottom: 1.5rem;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.hero-text h1 em {
  font-style: italic;
  color: var(--ocre);
  font-weight: 400;
}

.hero-text .lede {
  font-size: 1.2rem;
  color: var(--creme);
  opacity: 0.95;
  margin-bottom: 2.5rem;
  max-width: 560px;
  text-shadow: 0 1px 10px rgba(0, 0, 0, 0.3);
}

.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--sauge-foncee);
  margin-bottom: 1.5rem;
  padding-left: 50px;
  position: relative;
}

.eyebrow::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 40px;
  height: 1px;
  background: var(--sauge-foncee);
}

/* Eyebrow sur le hero (fond sombre) — ocre pour ressortir */
.hero .eyebrow { color: var(--ocre); }
.hero .eyebrow::before { background: var(--ocre); }

/* Boutons sur hero sombre */
.hero .btn {
  background: var(--creme);
  color: var(--noir);
}
.hero .btn:hover {
  background: var(--ocre);
  color: var(--noir);
}
.hero .btn-outline {
  background: transparent;
  color: var(--creme);
  border-color: var(--creme);
}
.hero .btn-outline:hover {
  background: var(--creme);
  color: var(--noir);
}

.btn {
  display: inline-block;
  padding: 1rem 2rem;
  background: var(--terre);
  color: var(--creme);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  border-radius: 2px;
  transition: all 0.3s;
  letter-spacing: 0.02em;
  border: none;
  cursor: pointer;
}

.btn:hover {
  background: var(--noir);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--terre);
  border: 1px solid var(--terre);
  margin-left: 1rem;
}

.btn-outline:hover {
  background: var(--terre);
  color: var(--creme);
}

/* ============ SECTIONS ============ */
.section {
  padding: 6rem 2rem;
  position: relative;
  z-index: 1;
}

.section-inner {
  max-width: 1280px;
  margin: 0 auto;
}

.section-header {
  margin-bottom: 4rem;
  max-width: 700px;
}

.section-header h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.section-header h2 em {
  font-style: italic;
  color: var(--rouge-kongo);
}

.section-header p {
  font-size: 1.1rem;
  opacity: 0.75;
}

.section-dark {
  background: var(--noir);
  color: var(--creme);
}

.section-dark h2, .section-dark h3 {
  color: var(--creme);
}

.section-cream {
  background: var(--creme-doux);
}

/* ============ CARDS ============ */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.card {
  background: var(--creme);
  padding: 2.5rem;
  border-radius: 4px;
  border: 1px solid rgba(139, 69, 19, 0.1);
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--terre);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(139, 69, 19, 0.08);
}

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

.card-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  display: inline-block;
}

.card h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.8rem;
  color: var(--terre);
}

.card p {
  font-size: 0.95rem;
  opacity: 0.8;
}

/* ============ TEXTE LONG ============ */
.prose {
  max-width: 720px;
  font-size: 1.1rem;
  line-height: 1.8;
}

.prose p {
  margin-bottom: 1.5rem;
}

.prose h3 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  margin-top: 3rem;
  margin-bottom: 1rem;
  color: var(--terre);
}

.prose strong {
  color: var(--rouge-kongo);
  font-weight: 600;
}

.prose ul {
  margin-bottom: 1.5rem;
  padding-left: 1.5rem;
}

.prose li {
  margin-bottom: 0.5rem;
}

/* ============ STATS ============ */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 3rem;
  padding: 4rem 0;
  border-top: 1px solid rgba(245, 235, 216, 0.2);
  border-bottom: 1px solid rgba(245, 235, 216, 0.2);
}

.stat-number {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 900;
  color: var(--ocre);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.9rem;
  opacity: 0.8;
  letter-spacing: 0.05em;
}

/* ============ FAQ ============ */
.faq-item {
  border-bottom: 1px solid rgba(139, 69, 19, 0.15);
  padding: 1.5rem 0;
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--noir);
  list-style: none;
  padding-right: 1rem;
}

.faq-question::-webkit-details-marker { display: none; }

.faq-question::after {
  content: '+';
  font-size: 2rem;
  font-weight: 300;
  color: var(--terre);
  transition: transform 0.3s;
}

.faq-item[open] .faq-question::after {
  content: '−';
}

.faq-answer {
  padding: 1rem 0 0.5rem;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--noir);
  opacity: 0.85;
}

/* ============ FORMULAIRE ============ */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  max-width: 720px;
}

.form-group {
  display: flex;
  flex-direction: column;
}

.form-group.full {
  grid-column: 1 / -1;
}

.form-group label {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--terre);
  margin-bottom: 0.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 0.9rem 1rem;
  border: 1px solid rgba(139, 69, 19, 0.2);
  background: var(--creme);
  color: var(--noir);
  border-radius: 2px;
  transition: all 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--terre);
  background: white;
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
  font-family: var(--font-body);
}

.form-message {
  display: none;
  padding: 1rem 1.25rem;
  margin-top: 1.5rem;
  background: var(--sauge);
  color: var(--creme);
  border-radius: 2px;
  grid-column: 1 / -1;
}

.form-message.show { display: block; }
.form-message.error { background: var(--rouge-kongo); }

/* ============ CONTACT INFO ============ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.contact-info-item {
  margin-bottom: 2rem;
  padding-left: 1.5rem;
  border-left: 2px solid var(--ocre);
}

.contact-info-item h4 {
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--sauge-foncee);
  margin-bottom: 0.5rem;
}

.contact-info-item p {
  font-size: 1.05rem;
}

/* ============ GALERIE ============ */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.gallery-item {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: 4px;
  background: var(--ocre-pale);
  cursor: pointer;
  transition: transform 0.3s;
}

.gallery-item:hover {
  transform: translateY(-4px);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s;
}

.gallery-item:hover img {
  transform: scale(1.05);
}

.gallery-item .gallery-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1rem 1.25rem;
  background: linear-gradient(to top, rgba(20, 12, 8, 0.85), transparent);
  color: var(--creme);
  font-size: 0.9rem;
  font-weight: 500;
  opacity: 0;
  transition: opacity 0.3s;
}

.gallery-item:hover .gallery-caption {
  opacity: 1;
}

.gallery-item.placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--creme-doux);
  border: 1px dashed rgba(139, 69, 19, 0.3);
  color: var(--terre);
  font-family: var(--font-display);
  font-style: italic;
  text-align: center;
  padding: 1rem;
  cursor: default;
}

.gallery-item.placeholder:hover { transform: none; }

.gallery-category {
  margin-bottom: 4rem;
}

.gallery-category h3 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--terre);
  margin-bottom: 0.5rem;
}

.gallery-category p {
  opacity: 0.75;
  margin-bottom: 1rem;
}

/* ============ ANIMATIONS ============ */

/* Préférence d'accessibilité : si l'utilisateur veut moins d'animations, on les désactive */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Éléments qui apparaissent au scroll : état initial invisible + décalé */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 1.2s cubic-bezier(0.16, 1, 0.3, 1),
              transform 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Délais en cascade pour les éléments groupés (cartes, etc.) */
.reveal-delay-1 { transition-delay: 0.15s; }
.reveal-delay-2 { transition-delay: 0.3s; }
.reveal-delay-3 { transition-delay: 0.45s; }
.reveal-delay-4 { transition-delay: 0.6s; }
.reveal-delay-5 { transition-delay: 0.75s; }

/* Animation des cartes au survol — l'icône bouge légèrement */
.card .card-icon {
  transition: transform 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.card:hover .card-icon {
  transform: scale(1.15) rotate(-5deg);
}

/* Compteur de stats : transition douce lors de l'incrémentation */
.stat-number {
  transition: color 0.3s;
}

/* Effet parallax sur le hero — l'image se déplace plus lentement que le texte */
.hero {
  background-attachment: fixed;
}

/* Sur mobile, on désactive le parallax (problèmes de performance et de UX) */
@media (max-width: 900px) {
  .hero {
    background-attachment: scroll;
  }
}

/* ============ FOOTER ============ */
.footer {
  background: var(--noir);
  color: var(--creme);
  padding: 4rem 2rem 2rem;
  position: relative;
  z-index: 1;
}

.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(245, 235, 216, 0.15);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 900;
  margin-bottom: 0.5rem;
}

.footer-brand-img {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  filter: brightness(1.1);
}

.footer-brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.footer-brand-text span {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ocre);
  margin-top: 4px;
}

/* Logo dans section histoire (page accueil) */
.section-with-logo {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 4rem;
  align-items: center;
}

.section-logo-img {
  width: 100%;
  max-width: 280px;
  height: auto;
  justify-self: center;
}

@media (max-width: 800px) {
  .section-with-logo {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .section-logo-img { max-width: 200px; }
}

.footer-desc {
  font-size: 0.9rem;
  opacity: 0.7;
  margin-top: 1rem;
  max-width: 320px;
}

.footer h5 {
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ocre);
  margin-bottom: 1rem;
}

.footer ul {
  list-style: none;
}

.footer ul li {
  margin-bottom: 0.6rem;
}

.footer a {
  color: var(--creme);
  text-decoration: none;
  opacity: 0.8;
  font-size: 0.9rem;
  transition: opacity 0.2s;
}

.footer a:hover {
  opacity: 1;
}

.footer-bottom {
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  opacity: 0.6;
}

/* ============ PAGE HEADER (pages internes) ============ */
.page-header {
  padding: 5rem 2rem 4rem;
  background: linear-gradient(180deg, var(--ocre-pale) 0%, var(--creme) 100%);
  position: relative;
  z-index: 1;
}

.page-header-inner {
  max-width: 1280px;
  margin: 0 auto;
}

.page-header h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 1rem;
}

.page-header h1 em {
  font-style: italic;
  color: var(--rouge-kongo);
}

.page-header p {
  font-size: 1.15rem;
  max-width: 600px;
  opacity: 0.8;
}

.breadcrumb {
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--sauge-foncee);
  margin-bottom: 2rem;
}

.breadcrumb a {
  color: var(--sauge-foncee);
  text-decoration: none;
}

/* ============ ANIMATIONS ============ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* L'animation initiale du hero text est immédiate au chargement (pas via scroll) */
.hero-text.reveal {
  /* on annule le système .reveal pour le hero qui a sa propre animation */
  opacity: 1;
  transform: none;
  transition: none;
}

.hero-text > * {
  animation: fadeUp 1.2s cubic-bezier(0.16, 1, 0.3, 1) backwards;
}

.hero-text .eyebrow { animation-delay: 0.2s; }
.hero-text h1 { animation-delay: 0.4s; }
.hero-text .lede { animation-delay: 0.7s; }
.hero-text .hero-cta { animation-delay: 1s; }

/* ============ RESPONSIVE ============ */
@media (max-width: 900px) {
  .menu-toggle { display: block; }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--creme);
    padding: 1.5rem 2rem;
    gap: 1rem;
    border-bottom: 1px solid rgba(139, 69, 19, 0.15);
  }

  .nav-links.open { display: flex; }

  .lang-switch {
    padding-left: 0;
    border-left: none;
    border-top: 1px solid rgba(139, 69, 19, 0.15);
    padding-top: 1rem;
    margin-top: 0.5rem;
  }

  .hero-inner,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .hero { min-height: 75vh; }
  .hero-inner { padding: 4rem 1.5rem; }

  .form-grid { grid-template-columns: 1fr; }

  .footer-top { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .footer-bottom { flex-direction: column; gap: 0.5rem; }

  .section { padding: 4rem 1.5rem; }
}

@media (max-width: 500px) {
  .footer-top { grid-template-columns: 1fr; }
  .btn-outline { margin-left: 0; margin-top: 1rem; display: block; text-align: center; }
}