/* ===== Reset & base ===== */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --accent: #b5533a;
  --accent-light: #d2785e;
  --accent-bg: #f7f0ec;
  --text: #1a1a1a;
  --text-muted: #777;
  --border: #e8e4e1;
  --white: #ffffff;
  --radius: 6px;
  --max-width: 1100px;
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--accent);
}

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

/* ===== Header / Navigation ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.nav {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__brand {
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
}

.nav__brand span {
  color: var(--accent);
}

.nav__links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav__links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  position: relative;
  padding-bottom: 4px;
}

.nav__links a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.25s ease;
}

.nav__links a:hover,
.nav__links a.active {
  color: var(--text);
}

.nav__links a:hover::after,
.nav__links a.active::after {
  width: 100%;
}

/* ===== Hero (Accueil) ===== */
.hero {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 5rem 2rem 3rem;
  text-align: center;
}

.hero__eyebrow {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.2rem;
}

.hero__title {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 1.2rem;
}

.hero__subtitle {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 540px;
  margin: 0 auto 2rem;
}

.hero__cta {
  display: inline-block;
  padding: 0.7rem 2rem;
  background: var(--accent);
  color: var(--white);
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: var(--radius);
  transition: background 0.2s ease, transform 0.15s ease;
}

.hero__cta:hover {
  background: #a04830;
  color: var(--white);
  transform: translateY(-1px);
}

/* ===== Section headings ===== */
.section-title {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
  margin-bottom: 2rem;
  text-align: center;
}

.section-title h2 {
  font-size: 1.8rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 0.4rem;
}

.section-title p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* ===== Photo grid ===== */
.grid {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1rem 2rem 4rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.grid__item {
  overflow: hidden;
  border-radius: var(--radius);
  position: relative;
  cursor: pointer;
  aspect-ratio: 4 / 3;
  background: var(--accent-bg);
}

.grid__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease, filter 0.3s ease;
}

.grid__item:hover img {
  transform: scale(1.05);
  filter: brightness(0.92);
}

.grid__item__label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1.5rem 1rem 0.8rem;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.6), transparent);
  color: var(--white);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.grid__item:hover .grid__item__label {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Page links section (Accueil) ===== */
.page-links {
  max-width: var(--max-width);
  margin: 0 auto 4rem;
  padding: 0 2rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.page-link {
  display: block;
  padding: 2.5rem 2rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-align: center;
  transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.15s ease;
}

.page-link:hover {
  border-color: var(--accent);
  box-shadow: 0 6px 20px rgba(181, 83, 58, 0.1);
  transform: translateY(-2px);
}

.page-link h3 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.page-link p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.page-link__arrow {
  display: inline-block;
  margin-top: 0.8rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent);
}

/* ===== Filters (Galerie) ===== */
.filters {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem 2rem;
  display: flex;
  justify-content: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.5rem 1.4rem;
  border: 1px solid var(--border);
  border-radius: 100px;
  background: var(--white);
  color: var(--text-muted);
  font-family: var(--font);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.filter-btn:hover {
  border-color: var(--accent);
  color: var(--text);
}

.filter-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--white);
}

.grid__item.hidden {
  display: none;
}

.grid__item.fade-in {
  animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== Contact form ===== */
.contact-section {
  max-width: 600px;
  margin: 0 auto;
  padding: 3rem 2rem 5rem;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text);
}

.form-group input,
.form-group textarea {
  padding: 0.75rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font);
  font-size: 0.95rem;
  color: var(--text);
  background: var(--white);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(181, 83, 58, 0.12);
}

.form-group textarea {
  resize: vertical;
  min-height: 140px;
}

.form-group.error input,
.form-group.error textarea {
  border-color: var(--accent);
}

.form-group .error-msg {
  font-size: 0.8rem;
  color: var(--accent);
  min-height: 1em;
}

.form-submit {
  align-self: flex-start;
  padding: 0.75rem 2.2rem;
  background: var(--accent);
  color: var(--white);
  border: none;
  border-radius: var(--radius);
  font-family: var(--font);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.15s ease;
}

.form-submit:hover {
  background: #a04830;
  transform: translateY(-1px);
}

.form-submit:active {
  transform: translateY(0);
}

.form-confirmation {
  display: none;
  padding: 1.2rem 1.5rem;
  background: var(--accent-bg);
  border: 1px solid var(--accent-light);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 0.9rem;
  line-height: 1.5;
  margin-bottom: 1rem;
}

.form-confirmation.show {
  display: block;
  animation: fadeIn 0.35s ease;
}

.form-confirmation strong {
  color: var(--accent);
}

/* ===== Contact info ===== */
.contact-info {
  max-width: 600px;
  margin: 0 auto;
  padding: 0 2rem 3rem;
  text-align: center;
}

.contact-info p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 0.3rem;
}

.contact-info a {
  color: var(--accent);
  font-weight: 500;
}

/* ===== Footer ===== */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 2rem;
  text-align: center;
}

.site-footer p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.site-footer p span {
  color: var(--accent);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .nav {
    padding: 1rem 1.25rem;
  }

  .nav__links {
    gap: 1.2rem;
  }

  .hero {
    padding: 3rem 1.25rem 2rem;
  }

  .grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    padding: 1rem 1.25rem 3rem;
  }

  .page-links {
    grid-template-columns: 1fr;
    gap: 1rem;
    padding: 0 1.25rem;
  }

  .contact-section,
  .contact-info {
    padding-left: 1.25rem;
    padding-right: 1.25rem;
  }
}

@media (max-width: 480px) {
  .grid {
    grid-template-columns: 1fr;
  }

  .nav__brand {
    font-size: 1.05rem;
  }

  .nav__links {
    gap: 0.9rem;
  }

  .nav__links a {
    font-size: 0.82rem;
  }
}