/* ─── Variables & Reset ─── */
:root {
  --bg:       #F2EDE6;
  --dark:     #0C0C0B;
  --light:    #FAFAF8;
  --accent:   #C8A96E;
  --gray:     #7A7A72;
  --border:   #E0DAD0;
  --nav-h:    5rem;

  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body:    'DM Sans', system-ui, sans-serif;

  --space-xs:  0.5rem;
  --space-sm:  1rem;
  --space-md:  2rem;
  --space-lg:  4rem;
  --space-xl:  8rem;
  --space-2xl: 14rem;

  --ease:      cubic-bezier(0.16, 1, 0.3, 1);
  --ease-back: cubic-bezier(0.34, 1.56, 0.64, 1);
  --dur:       0.45s;
}

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

html {
  font-size: clamp(15px, 1.1vw, 17px);
  scroll-behavior: auto;
  -webkit-font-smoothing: antialiased;
  cursor: none;
}

/* Masquer le curseur système sur tous les éléments interactifs */
*, a, button, [role="button"], input, select, textarea, label {
  cursor: none !important;
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--dark);
  overflow-x: hidden;
  min-height: 100vh;
}

img, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
address { font-style: normal; }

/* ─── Skip Nav ─── */
.skip-to-content {
  position: absolute;
  top: -100%;
  left: 1rem;
  background: var(--dark);
  color: var(--light);
  padding: 0.5rem 1rem;
  z-index: 9999;
  font-size: 0.875rem;
  border-radius: 0 0 4px 4px;
}
.skip-to-content:focus { top: 0; }

/* ─── Focus ─── */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ─── Loader ─── */
.loader {
  position: fixed;
  inset: 0;
  background: var(--dark);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  clip-path: inset(0 0 0% 0);
}

.loader-inner {
  display: flex;
  align-items: baseline;
  gap: var(--space-sm);
}

.loader-counter {
  font-family: var(--font-display);
  font-size: clamp(5rem, 15vw, 12rem);
  font-weight: 300;
  color: var(--light);
  line-height: 1;
  letter-spacing: -0.04em;
  min-width: 3ch;
  display: inline-block;
}

.loader-label {
  font-family: var(--font-display);
  font-size: clamp(1rem, 2vw, 1.5rem);
  font-weight: 300;
  color: var(--accent);
  letter-spacing: 0.3em;
  text-transform: uppercase;
}

.loader-bar {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 2px;
  background: var(--accent);
  width: 0%;
  transition: width 2s linear;
}

/* ─── Scroll Progress ─── */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--accent);
  z-index: 8999;
  transform-origin: left;
  pointer-events: none;
}

/* ─── Custom Cursor ─── */
.cursor {
  width: 10px;
  height: 10px;
  background: var(--accent);
  border-radius: 50%;
  position: fixed;
  top: -5px;
  left: -5px;
  pointer-events: none;
  z-index: 9998;
  mix-blend-mode: multiply;
  transition: transform 0.15s var(--ease), width 0.3s var(--ease), height 0.3s var(--ease);
}
.cursor.is-active {
  width: 48px;
  height: 48px;
  top: -24px;
  left: -24px;
  background: transparent;
  border: 1.5px solid var(--accent);
}
@media (hover: none) { .cursor { display: none; } }

/* ─── Navigation ─── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  z-index: 9000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-lg);
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
  border-bottom: 1px solid transparent;
  background: rgba(242, 237, 230, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  /* Force GPU compositing layer pour éviter les glitches avec backdrop-filter */
  transform: translateZ(0);
  will-change: background;
}

.nav.is-scrolled {
  background: rgba(242, 237, 230, 0.97);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-color: var(--border);
  box-shadow: 0 1px 0 var(--border);
}

.nav-logo {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
}

.nav-logo-text {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.nav-logo-sub {
  font-size: 0.7rem;
  font-weight: 300;
  color: var(--gray);
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav-link {
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--dark);
  position: relative;
  padding-bottom: 2px;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width var(--dur) var(--ease);
}

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

.nav-link--cta {
  border: 1px solid var(--dark);
  padding: 0.5rem 1.2rem;
  border-radius: 0;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
.nav-link--cta::after { display: none; }
.nav-link--cta:hover { background: var(--dark); color: var(--light); }

.nav-toggle { display: none; }

/* ─── Buttons ─── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.9rem 2rem;
  border: 1.5px solid currentColor;
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), transform var(--dur) var(--ease);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--dark);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur) var(--ease);
  z-index: -1;
}

.btn:hover::before { transform: scaleX(1); }
.btn:hover { color: var(--light); }

.btn--outline { color: var(--dark); }
.btn--dark { background: var(--dark); color: var(--light); border-color: var(--dark); }
.btn--dark::before { background: var(--accent); }
.btn--accent { background: var(--accent); color: var(--dark); border-color: var(--accent); }
.btn--accent::before { background: var(--dark); }
.btn--accent:hover { color: var(--light); }
.btn--large { padding: 1.1rem 2.5rem; font-size: 0.9rem; }

/* ─── Section base ─── */
.section { padding: var(--space-xl) var(--space-lg); }
.section-tag {
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray);
  display: block;
  margin-bottom: var(--space-sm);
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 300;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

/* ─── Hero ─── */
.hero {
  min-height: 100vh;
  padding-top: var(--nav-h);
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr auto;
  gap: 0;
  overflow: hidden;
  position: relative;
}

.hero-content {
  padding: var(--space-xl) var(--space-lg);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: var(--space-md);
  grid-row: 1;
  grid-column: 1;
}

/* Éléments cachés jusqu'à l'animation (js les révèle après le loader) */
.hero-eyebrow,
.hero-desc,
.hero-content .btn {
  opacity: 0;
}

.hero-eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray);
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 7vw, 6.5rem);
  font-weight: 300;
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.hero-title-line {
  display: block;
  overflow: hidden;
  padding-bottom: 0.08em; /* évite que les descendantes soient clippées */
}

.hero-title-line--italic {
  font-style: italic;
  color: var(--accent);
}

.line-inner {
  display: block;
  transform: translateY(105%);
}

.hero-desc {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--gray);
  max-width: 38ch;
  opacity: 0;
}

.hero-visual {
  grid-column: 2;
  grid-row: 1;
  position: relative;
  overflow: hidden;
}

.hero-image {
  position: absolute;
  border-radius: 0;
}

.hero-image--1 {
  inset: 0;
  background-image: url('../images/hero.webp');
  background-size: cover;
  background-position: center;
  clip-path: inset(0 0 0 0);
}

.hero-image--2 {
  bottom: var(--space-lg);
  left: -var(--space-lg);
  width: 45%;
  height: 35%;
  background-image: url('../images/hero-accent.webp');
  background-size: cover;
  background-position: center;
  transform: translateX(-40%);
  opacity: 0;
}

.hero-scroll-hint {
  position: absolute;
  bottom: var(--space-md);
  right: var(--space-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.6);
  writing-mode: vertical-rl;
}

.hero-scroll-line {
  width: 1px;
  height: 3rem;
  background: linear-gradient(to bottom, transparent, rgba(255,255,255,0.6));
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { height: 1rem; opacity: 0.3; }
  50% { height: 3rem; opacity: 1; }
}

.hero-numbers {
  grid-column: 1 / -1;
  grid-row: 2;
  display: flex;
  border-top: 1px solid var(--border);
  background: var(--light);
}

.hero-stat {
  flex: 1;
  padding: var(--space-md) var(--space-lg);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}
.hero-stat:last-child { border-right: none; }

.hero-stat-num {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 300;
  letter-spacing: -0.03em;
}

.hero-stat-num::after {
  content: '+';
  font-size: 0.6em;
  color: var(--accent);
  margin-left: 2px;
}

.hero-stat-label {
  font-size: 0.75rem;
  color: var(--gray);
  letter-spacing: 0.05em;
}

/* ─── Marquee ─── */
.marquee {
  background: var(--dark);
  color: var(--light);
  padding: 0.8rem 0;
  overflow: hidden;
  white-space: nowrap;
}

.marquee-track {
  display: inline-flex;
  gap: var(--space-md);
  animation: marqueeScroll 20s linear infinite;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.marquee-dot { color: var(--accent); }

.marquee:hover .marquee-track { animation-play-state: paused; }

@keyframes marqueeScroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ─── Projects ─── */
.section--projects { padding-top: var(--space-xl); padding-bottom: var(--space-xl); }

.section-header {
  margin-bottom: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.projects-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  grid-template-rows: 55vh 35vh;
  gap: var(--space-xs);
  perspective: 1200px;
}

.project-card {
  position: relative;
  overflow: hidden;
  background: var(--dark);
  transform-style: preserve-3d;
  will-change: transform;
  transition: box-shadow 0.4s var(--ease);
}

.project-card:hover {
  box-shadow: 0 30px 80px rgba(0,0,0,0.25);
  z-index: 2;
}

.project-card--large {
  grid-row: 1 / 3;
  grid-column: 1;
}

.project-card--wide {
  grid-column: 2 / 4;
}

.project-card-image {
  position: absolute;
  inset: 0;
  transition: transform 0.8s var(--ease);
}

.project-card:hover .project-card-image { transform: scale(1.08); }

.project-card-image--1 {
  background-image: url('../images/project-maison-k.webp');
  background-size: cover;
  background-position: center;
}
.project-card-image--2 {
  background-image: url('../images/project-bureau-horizon.webp');
  background-size: cover;
  background-position: center;
}
.project-card-image--3 {
  background-image: url('../images/project-galerie-verre.webp');
  background-size: cover;
  background-position: center;
}
.project-card-image--4 {
  background-image: url('../images/project-villa-soleil.webp');
  background-size: cover;
  background-position: center;
}

.project-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, transparent 60%);
}

.project-card-info {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-md);
  color: var(--light);
  z-index: 2;
  transform: translateY(1rem);
  transition: transform var(--dur) var(--ease);
}

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

.project-card-type {
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  display: block;
  margin-bottom: 0.4rem;
}

.project-card-title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 300;
  line-height: 1.1;
}

.project-card-loc {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.6);
  margin-top: 0.25rem;
}

/* ─── Expertise ─── */
.section--expertise {
  background: var(--light);
}

.expertise-inner {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--space-2xl);
  align-items: start;
}

.expertise-left {
  position: sticky;
  top: calc(var(--nav-h) + var(--space-md));
}

.expertise-desc {
  margin-top: var(--space-md);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--gray);
  max-width: 36ch;
}

.expertise-services {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.service-item {
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: var(--space-sm);
  padding: var(--space-md) 0;
  border-top: 1px solid var(--border);
  transition: background var(--dur) var(--ease);
  position: relative;
}

.service-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: -var(--space-lg);
  right: -var(--space-lg);
  bottom: 0;
  background: var(--bg);
  opacity: 0;
  transition: opacity var(--dur) var(--ease);
  pointer-events: none;
}

.service-item:hover::before { opacity: 1; }

.service-num {
  font-size: 0.7rem;
  color: var(--gray);
  letter-spacing: 0.1em;
  padding-top: 0.2rem;
}

.service-title {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 300;
  letter-spacing: -0.01em;
  margin-bottom: 0.5rem;
}

.service-desc {
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--gray);
}

/* ─── Studio ─── */
.section--studio {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
  padding: var(--space-xl) 0 var(--space-xl) var(--space-lg);
  overflow: hidden;
}

.studio-visual {
  position: relative;
  height: 80vh;
}

.studio-image {
  width: 100%;
  height: 100%;
  background-image: url('../images/studio.webp');
  background-size: cover;
  background-position: center;
}

.studio-tag-floating {
  position: absolute;
  top: var(--space-md);
  right: -var(--space-sm);
  background: var(--accent);
  color: var(--dark);
  padding: 0.5rem 1.2rem;
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.studio-content {
  padding-right: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.studio-quote {
  border-left: 2px solid var(--accent);
  padding-left: var(--space-md);
  margin: var(--space-xs) 0;
}

.studio-quote p {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  font-weight: 300;
  font-style: italic;
  line-height: 1.5;
  letter-spacing: -0.01em;
}

.studio-quote cite {
  display: block;
  margin-top: 0.75rem;
  font-size: 0.75rem;
  color: var(--gray);
  letter-spacing: 0.05em;
  font-style: normal;
}

.studio-desc {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--gray);
}

/* ─── Contact ─── */
.section--contact {
  background: var(--dark);
  color: var(--light);
  --border: rgba(255,255,255,0.1);
}

.contact-header {
  margin-bottom: var(--space-xl);
}

.section--contact .section-tag {
  color: var(--accent);
}

.contact-title {
  color: var(--light);
}

.contact-sub {
  margin-top: var(--space-sm);
  font-size: 1rem;
  color: rgba(255,255,255,0.5);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
  border-top: 1px solid rgba(255,255,255,0.1);
  border-bottom: 1px solid rgba(255,255,255,0.1);
  padding: var(--space-lg) 0;
}

.contact-block {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.contact-label {
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
}

.contact-value {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--light);
  transition: color var(--dur) var(--ease);
}

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

.contact-cta {
  display: flex;
  justify-content: flex-start;
}

/* ─── Footer ─── */
.footer {
  background: var(--dark);
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: var(--space-md) var(--space-lg);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 300;
  color: var(--light);
  letter-spacing: 0.1em;
  display: block;
}

.footer-tagline {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.35);
  margin-top: 0.2rem;
}

.footer-nav {
  display: flex;
  gap: var(--space-md);
}

.footer-link {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
  transition: color var(--dur) var(--ease);
}

.footer-link:hover { color: var(--accent); }

.footer-legal {
  display: flex;
  gap: var(--space-sm);
  font-size: 0.7rem;
  color: rgba(255,255,255,0.25);
  align-items: center;
}

/* ─── Utility: clip reveal ─── */
.clip-hidden { clip-path: inset(0 0 100% 0); }

/* ─── Responsive ─── */
@media (max-width: 1024px) {
  :root { --space-lg: 2rem; --space-xl: 5rem; }

  .hero {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
  }
  .hero-content {
    padding: calc(var(--nav-h) + var(--space-lg)) var(--space-md) var(--space-md);
    grid-column: 1;
    grid-row: 1;
  }
  .hero-visual {
    grid-column: 1;
    grid-row: 2;
    height: 50vw;
  }
  .hero-scroll-hint { display: none; }
  .hero-numbers { grid-row: 3; }

  .projects-grid {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 50vw 35vw 35vw;
  }
  .project-card--large { grid-row: 1; grid-column: 1 / -1; }
  .project-card--wide { grid-column: 1 / -1; }

  .expertise-inner { grid-template-columns: 1fr; gap: var(--space-lg); }
  .expertise-left { position: static; }

  .section--studio {
    grid-template-columns: 1fr;
    padding: var(--space-xl) var(--space-md);
  }
  .studio-visual { height: 60vw; }

  .contact-grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; flex-direction: column; gap: 6px; background: none; border: none; cursor: pointer; padding: 4px; }
  .nav-toggle span { width: 24px; height: 1px; background: var(--dark); transition: transform var(--dur) var(--ease); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .marquee-track { animation: none; }
}