/* =============================================
   AXESAONE-INSPIRED AUTOMAD V2 THEME
   Architecture · Paysage · Urbanisme
   ============================================= */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,600;1,300;1,400&family=DM+Sans:wght@300;400;500&display=swap');

/* --- VARIABLES --- */
:root {
  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body: 'DM Sans', Helvetica, sans-serif;

  --c-black:   #1a1a18;
  --c-dark:    #2c2c29;
  --c-mid:     #6b6b65;
  --c-muted:   #9e9e97;
  --c-light:   #e8e8e2;
  --c-pale:    #f4f4f0;
  --c-white:   #fafaf8;
  --c-accent:  #c8b89a;

  --nav-h: 72px;
  --max-w: 1280px;
  --gap:   clamp(1rem, 3vw, 2rem);
}

/* --- RESET & BASE --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-weight: 300;
  color: var(--c-black);
  background: var(--c-white);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { display: block; width: 100%; height: 100%; object-fit: cover; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; background: none; border: none; font: inherit; }

/* --- TYPOGRAPHY --- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 300;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.8rem, 6vw, 5.5rem); }
h2 { font-size: clamp(1.8rem, 3vw, 2.6rem); }
h3 { font-size: clamp(1.1rem, 1.8vw, 1.5rem); }

p {
  font-size: clamp(0.9rem, 1.1vw, 1rem);
  line-height: 1.75;
  color: var(--c-mid);
}

/* =============================================
   NAVIGATION
   ============================================= */
#site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  padding: 0 clamp(1.5rem, 5vw, 4rem);
  transition: background 0.4s ease, box-shadow 0.4s ease;
}

#site-header.scrolled {
  background: rgba(250, 250, 248, 0.96);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 1px 0 var(--c-light);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
}

/* Logo */
.site-logo {
  display: flex;
  flex-direction: column;
  line-height: 1;
  transition: opacity 0.2s;
}
.site-logo:hover { opacity: 0.65; }

.logo-name {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--c-black);
}

.logo-tagline {
  font-size: 0.68rem;
  font-weight: 400;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-mid);
  margin-top: 2px;
}

/* Main nav */
.main-nav {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.main-nav a {
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--c-dark);
  position: relative;
  padding-bottom: 2px;
  transition: color 0.2s;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0;
  width: 0; height: 1px;
  background: var(--c-black);
  transition: width 0.3s ease;
}

.main-nav a:hover { color: var(--c-black); }
.main-nav a:hover::after,
.main-nav a.active::after { width: 100%; }
.main-nav a.active { color: var(--c-black); }

/* Hamburger (mobile) */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 4px 0;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  height: 1px;
  background: var(--c-black);
  transition: all 0.3s ease;
}

/* Mobile menu overlay */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 99;
  background: var(--c-white);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2.5rem;
  opacity: 0;
  transition: opacity 0.3s ease;
}
.mobile-menu.open {
  display: flex;
  opacity: 1;
}
.mobile-menu a {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 300;
  color: var(--c-black);
  letter-spacing: -0.01em;
  transition: color 0.2s;
}
.mobile-menu a:hover { color: var(--c-muted); }

/* =============================================
   HERO — PAGE D'ACCUEIL
   ============================================= */
#hero {
  min-height: 50vh;
  display: flex;
  align-items: flex-end;
  padding: calc(var(--nav-h) + 4rem) clamp(1.5rem, 5vw, 4rem) 3rem;
}

.hero-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  width: 100%;
}

.hero-statement {
  font-family: var(--font-display);
  font-size: clamp(3rem, 7vw, 6.5rem);
  font-weight: 300;
  line-height: 1.05;
  font-style: italic;
  color: var(--c-black);
  max-width: 14ch;
  letter-spacing: -0.02em;
}

/* =============================================
   GRILLE PROJETS (MASONRY STYLE) — ACCUEIL
   ============================================= */
#featured-projects {
  padding: 3rem clamp(1.5rem, 5vw, 4rem) 5rem;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1.25rem;
  max-width: var(--max-w);
  margin: 0 auto;
}

/* Disposition asymétrique comme sur axesaone */
.project-card:nth-child(1) { grid-column: 1 / 6; grid-row: 1; }
.project-card:nth-child(2) { grid-column: 6 / 10; grid-row: 1; }
.project-card:nth-child(3) { grid-column: 10 / 13; grid-row: 1 / 3; }
.project-card:nth-child(4) { grid-column: 1 / 4;  grid-row: 2 / 4; }
.project-card:nth-child(5) { grid-column: 4 / 8;  grid-row: 2; }
.project-card:nth-child(6) { grid-column: 8 / 10; grid-row: 2; }

.project-card {
  position: relative;
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: auto;
  min-height: 260px;
  background: var(--c-pale);
}

.project-card:nth-child(1) { min-height: 420px; }
.project-card:nth-child(3) { min-height: 540px; }
.project-card:nth-child(4) { min-height: 380px; }

.project-img {
  position: absolute;
  inset: 0;
  transition: transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.project-card:hover .project-img { transform: scale(1.04); }

.project-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(26,26,24,0.72) 0%, transparent 55%);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.project-card:hover .project-overlay { opacity: 1; }

.project-info {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 1.5rem;
  transform: translateY(6px);
  transition: transform 0.4s ease;
}

.project-card:hover .project-info { transform: translateY(0); }

.project-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 400;
  color: #fff;
  line-height: 1.25;
  margin-bottom: 0.2rem;
}

.project-location {
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.75);
}

/* =============================================
   SECTION INTRO / PHILOSOPHIE
   ============================================= */
#intro {
  padding: 5rem clamp(1.5rem, 5vw, 4rem);
  border-top: 1px solid var(--c-light);
  border-bottom: 1px solid var(--c-light);
}

.intro-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  align-items: center;
}

.intro-text p {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 1.6vw, 1.4rem);
  font-weight: 300;
  line-height: 1.65;
  color: var(--c-dark);
}

.intro-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.stat-item {
  border-top: 1px solid var(--c-light);
  padding-top: 1rem;
}

.stat-number {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3vw, 3rem);
  font-weight: 300;
  color: var(--c-black);
  letter-spacing: -0.02em;
  display: block;
  margin-bottom: 0.3rem;
}

.stat-label {
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-muted);
}

/* =============================================
   PAGE PROJETS
   ============================================= */
#page-projects {
  padding-top: calc(var(--nav-h) + 3rem);
}

.page-header {
  padding: 0 clamp(1.5rem, 5vw, 4rem) 2.5rem;
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}

.page-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 300;
  color: var(--c-black);
}

/* Filtres */
.filter-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  padding: 0 clamp(1.5rem, 5vw, 4rem);
  max-width: var(--max-w);
  margin: 0 auto 3rem;
}

.filter-btn {
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-muted);
  padding: 0.45rem 1rem;
  border: 1px solid transparent;
  transition: all 0.2s;
}

.filter-btn:hover {
  color: var(--c-black);
  border-color: var(--c-light);
}

.filter-btn.active {
  color: var(--c-black);
  border-color: var(--c-black);
}

/* Grille projets (page liste) */
.all-projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--c-light);
  max-width: var(--max-w);
  margin: 0 auto;
}

.project-list-item {
  position: relative;
  overflow: hidden;
  background: var(--c-white);
  aspect-ratio: 4/3;
  cursor: pointer;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.project-list-item.visible {
  opacity: 1;
  transform: translateY(0);
}

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

/* Sans image (placeholder) */
.project-no-img {
  background: var(--c-pale);
  display: flex;
  align-items: flex-end;
  padding: 1.5rem;
}

.project-list-meta {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 1rem 1.25rem;
  background: linear-gradient(to top, rgba(26,26,24,0.8) 0%, transparent 100%);
  opacity: 0;
  transition: opacity 0.35s ease;
}

.project-list-item:hover .project-list-meta { opacity: 1; }

.project-list-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 400;
  color: #fff;
  margin-bottom: 0.15rem;
}

.project-list-cat {
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.65);
}

/* =============================================
   PAGE PROJET DÉTAIL
   ============================================= */
#page-project {
  padding-top: var(--nav-h);
}

.project-hero-img {
  height: 70vh;
  position: relative;
  overflow: hidden;
}

.project-content {
  max-width: 860px;
  margin: 0 auto;
  padding: 4rem clamp(1.5rem, 5vw, 4rem);
}

.project-content-header {
  margin-bottom: 3rem;
  border-bottom: 1px solid var(--c-light);
  padding-bottom: 2rem;
}

.project-content-cat {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-muted);
  margin-bottom: 1rem;
}

.project-content-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 300;
  color: var(--c-black);
  margin-bottom: 0.5rem;
}

.project-content-location {
  font-size: 0.85rem;
  color: var(--c-muted);
  letter-spacing: 0.05em;
}

.project-body p {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--c-dark);
  margin-bottom: 1.5rem;
}

.project-gallery {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 3rem;
}

.project-gallery img {
  aspect-ratio: 4/3;
}

/* =============================================
   PAGE AGENCE
   ============================================= */
#page-agence {
  padding-top: calc(var(--nav-h) + 2rem);
}

.agence-intro {
  padding: 3rem clamp(1.5rem, 5vw, 4rem) 5rem;
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 8rem;
  align-items: start;
}

.agence-intro-aside {
  position: sticky;
  top: calc(var(--nav-h) + 2rem);
}

.agence-section-label {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-muted);
  margin-bottom: 1.5rem;
}

.agence-quote {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 2.5vw, 2.2rem);
  font-weight: 300;
  line-height: 1.4;
  font-style: italic;
  color: var(--c-black);
}

.agence-blocks { display: flex; flex-direction: column; gap: 4rem; }

.agence-block h3 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--c-black);
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--c-light);
}

.agence-block p {
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--c-mid);
}

/* Stats agence */
.agence-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--c-light);
  margin: 5rem 0;
}

.agence-stat {
  background: var(--c-white);
  padding: 2.5rem 2rem;
  text-align: center;
}

.agence-stat .stat-number {
  font-size: clamp(2.5rem, 4vw, 4rem);
  color: var(--c-black);
}

/* Équipe */
#team {
  padding: 5rem clamp(1.5rem, 5vw, 4rem);
  border-top: 1px solid var(--c-light);
  background: var(--c-pale);
}

.team-title {
  max-width: var(--max-w);
  margin: 0 auto 3rem;
}

.team-title h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  font-weight: 300;
  color: var(--c-black);
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1.5rem;
  max-width: var(--max-w);
  margin: 0 auto;
}

.team-member {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.75rem;
}

.team-avatar {
  width: 100%;
  aspect-ratio: 1;
  background: var(--c-light);
  overflow: hidden;
  position: relative;
}

.team-name {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 400;
  color: var(--c-black);
}

.team-role {
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--c-muted);
}

/* Clients */
#clients {
  padding: 5rem clamp(1.5rem, 5vw, 4rem);
  max-width: var(--max-w);
  margin: 0 auto;
}

.clients-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  font-weight: 300;
  color: var(--c-black);
  margin-bottom: 2.5rem;
}

.clients-list {
  font-size: 0.9rem;
  line-height: 2.2;
  color: var(--c-mid);
}

.clients-list strong {
  color: var(--c-dark);
  font-weight: 500;
}

/* =============================================
   PAGE CONTACT
   ============================================= */
#page-contact {
  padding-top: calc(var(--nav-h) + 4rem);
  min-height: 80vh;
}

.contact-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 5vw, 4rem) 6rem;
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 8rem;
  align-items: start;
}

.contact-aside h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 300;
  color: var(--c-black);
  line-height: 1.1;
  margin-bottom: 2rem;
}

.contact-details { margin-top: 3rem; }

.contact-detail-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin-bottom: 1.5rem;
}

.contact-detail-label {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-muted);
}

.contact-detail-value {
  font-size: 0.95rem;
  color: var(--c-dark);
}

/* Formulaire */
.contact-form { display: flex; flex-direction: column; gap: 1.5rem; }

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

.form-label {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--c-muted);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 0.85rem 0;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--c-light);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 300;
  color: var(--c-black);
  outline: none;
  transition: border-color 0.2s;
  resize: none;
}

.form-input:focus,
.form-textarea:focus { border-bottom-color: var(--c-black); }

.form-textarea { min-height: 120px; }

.btn-submit {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-black);
  padding: 1rem 2rem;
  border: 1px solid var(--c-black);
  transition: all 0.25s ease;
  margin-top: 0.5rem;
}

.btn-submit:hover {
  background: var(--c-black);
  color: var(--c-white);
}

.btn-submit svg {
  width: 14px; height: 14px;
  transition: transform 0.25s ease;
}

.btn-submit:hover svg { transform: translateX(4px); }

/* =============================================
   FOOTER
   ============================================= */
#site-footer {
  padding: 2.5rem clamp(1.5rem, 5vw, 4rem);
  border-top: 1px solid var(--c-light);
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.footer-nav a {
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-muted);
  transition: color 0.2s;
}
.footer-nav a:hover { color: var(--c-black); }

.footer-social {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.footer-social a {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--c-muted);
  transition: color 0.2s;
}
.footer-social a:hover { color: var(--c-black); }

.footer-copy {
  font-size: 0.7rem;
  color: var(--c-muted);
}

/* =============================================
   ANIMATIONS
   ============================================= */
.fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-up.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* stagger children */
.fade-up:nth-child(2) { transition-delay: 0.1s; }
.fade-up:nth-child(3) { transition-delay: 0.2s; }
.fade-up:nth-child(4) { transition-delay: 0.3s; }

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 1024px) {
  .intro-inner { grid-template-columns: 1fr; gap: 3rem; }
  .agence-intro { grid-template-columns: 1fr; gap: 3rem; }
  .agence-intro-aside { position: static; }
  .contact-inner { grid-template-columns: 1fr; gap: 3rem; }
  .all-projects-grid { grid-template-columns: repeat(2, 1fr); }

  .project-card:nth-child(1) { grid-column: 1 / 7; }
  .project-card:nth-child(2) { grid-column: 7 / 13; }
  .project-card:nth-child(3) { grid-column: 1 / 5; grid-row: 2; min-height: 280px; }
  .project-card:nth-child(4) { grid-column: 5 / 9; grid-row: 2; }
  .project-card:nth-child(5) { grid-column: 9 / 13; grid-row: 2; }
  .project-card:nth-child(6) { display: none; }
}

@media (max-width: 768px) {
  .main-nav { display: none; }
  .nav-toggle { display: flex; }

  .projects-grid { display: flex; flex-direction: column; gap: 1rem; }
  .project-card { min-height: 250px !important; }
  .project-overlay { opacity: 1; }
  .project-info { transform: none; }

  .all-projects-grid { grid-template-columns: 1fr; }

  .intro-stats { grid-template-columns: 1fr 1fr; }
  .agence-stats { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: repeat(2, 1fr); }

  .project-gallery { grid-template-columns: 1fr; }

  .footer-inner { flex-direction: column; gap: 1.5rem; }
  .footer-nav, .footer-social { flex-wrap: wrap; gap: 1rem; }
}