/* =====================
   MEAS PROD — Design System
   ===================== */

:root {
  --black:      #0A0A0A;
  --black-soft: #1A1A1A;
  --gold:       #C8A96E;
  --gold-light: #E2C896;
  --white:      #F5F0E8;
  --grey:       #6B6B6B;
  --grey-light: #2A2A2A;

  --font-display: 'Playfair Display', Georgia, serif;
  --font-body:    'Inter', system-ui, sans-serif;

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

  --radius:    4px;
  --transition: 0.3s ease;
}

/* RESET */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  background: var(--black);
  color: var(--white);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* CONTAINER */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* =====================
   NAVIGATION
   ===================== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 2rem;
  background: rgba(10, 10, 10, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(200, 169, 110, 0.1);
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.05em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--grey);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: color var(--transition);
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--white);
}

.nav-cta {
  color: var(--gold) !important;
  border: 1px solid var(--gold);
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius);
  transition: background var(--transition) !important;
}

.nav-cta:hover {
  background: var(--gold);
  color: var(--black) !important;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  transition: var(--transition);
}

/* =====================
   HERO
   ===================== */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  padding: 8rem 2rem 4rem;
  max-width: 1200px;
  margin: 0 auto;
  gap: 4rem;
}

.hero-eyebrow {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.5rem;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 400;
  line-height: 1.1;
  color: var(--white);
  margin-bottom: 1.5rem;
}

.hero-title em {
  font-style: italic;
  color: var(--gold);
}

.hero-sub {
  font-size: 1rem;
  color: var(--grey);
  line-height: 1.8;
  margin-bottom: 2.5rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Signature : Lens animation */
.hero-lens {
  position: relative;
  width: 400px;
  height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  justify-self: center;
}

.lens-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(200, 169, 110, 0.3);
  animation: pulse 3s ease-in-out infinite;
}

.lens-1 { width: 100%; height: 100%; animation-delay: 0s; }
.lens-2 { width: 70%; height: 70%; animation-delay: 0.5s; border-color: rgba(200, 169, 110, 0.5); }
.lens-3 { width: 45%; height: 45%; animation-delay: 1s; border-color: rgba(200, 169, 110, 0.7); }

.lens-dot {
  width: 12px;
  height: 12px;
  background: var(--gold);
  border-radius: 50%;
  box-shadow: 0 0 20px var(--gold), 0 0 40px rgba(200, 169, 110, 0.4);
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.6; }
  50% { transform: scale(1.03); opacity: 1; }
}

/* =====================
   BUTTONS
   ===================== */
.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: all var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--gold);
  color: var(--black);
}

.btn-primary:hover {
  background: var(--gold-light);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(245, 240, 232, 0.3);
}

.btn-ghost:hover {
  border-color: var(--white);
  background: rgba(245, 240, 232, 0.05);
}

.btn-large {
  padding: 1.125rem 3rem;
  font-size: 1rem;
}

/* =====================
   SECTIONS COMMUNES
   ===================== */
.section-eyebrow {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 400;
  line-height: 1.15;
  color: var(--white);
  margin-bottom: 1.5rem;
}

.section-sub {
  font-size: 1.0625rem;
  color: var(--grey);
  max-width: 500px;
}

/* =====================
   SERVICES
   ===================== */
.services {
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--grey-light);
}

.services .container > .section-sub {
  margin-bottom: var(--space-lg);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: var(--space-lg);
}

.service-card {
  background: var(--black-soft);
  border: 1px solid var(--grey-light);
  border-radius: var(--radius);
  padding: 2.5rem 2rem;
  transition: border-color var(--transition), transform var(--transition);
}

.service-card:hover {
  border-color: var(--gold);
  transform: translateY(-4px);
}

.service-card--featured {
  border-color: rgba(200, 169, 110, 0.4);
  background: rgba(200, 169, 110, 0.04);
}

.service-icon {
  font-size: 2rem;
  display: block;
  margin-bottom: 1.5rem;
}

.service-name {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--white);
  margin-bottom: 1rem;
}

.service-desc {
  font-size: 0.9375rem;
  color: var(--grey);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.service-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gold);
  letter-spacing: 0.03em;
  transition: opacity var(--transition);
}

.service-link:hover { opacity: 0.7; }

/* =====================
   PROJETS
   ===================== */
.projets {
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--grey-light);
}

.projets-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-top: var(--space-lg);
}

.projet-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4/3;
  cursor: pointer;
}

.projet-card:hover .projet-info {
  opacity: 1;
  transform: translateY(0);
}

.projet-visuel {
  width: 100%;
  height: 100%;
  background: var(--black-soft);
  transition: transform 0.5s ease;
}

.projet-card:hover .projet-visuel {
  transform: scale(1.05);
}

/* Couleurs placeholder par projet */
.projet-visuel--promenade { background: linear-gradient(135deg, #3D2B1F 0%, #8B6B4F 100%); }
.projet-visuel--bagout     { background: linear-gradient(135deg, #1A1A2E 0%, #16213E 50%, #0F3460 100%); }
.projet-visuel--crousty    { background: linear-gradient(135deg, #2D0057 0%, #8B00FF 50%, #FF69B4 100%); }
.projet-visuel--tartines   { background: linear-gradient(135deg, #3E2723 0%, #8D6E63 100%); }

.projet-info {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 1.5rem;
  background: linear-gradient(transparent, rgba(10,10,10,0.9));
  opacity: 0;
  transform: translateY(8px);
  transition: all var(--transition);
}

.projet-tag {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold);
  display: block;
  margin-bottom: 0.25rem;
}

.projet-name {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--white);
}

.projet-lieu {
  font-size: 0.8125rem;
  color: var(--grey);
  margin-top: 0.25rem;
}

/* =====================
   CTA SECTION
   ===================== */
.cta-section {
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--grey-light);
  text-align: center;
}

.cta-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 400;
  line-height: 1.15;
  color: var(--white);
  margin-bottom: 2.5rem;
}

/* =====================
   FOOTER
   ===================== */
.footer {
  border-top: 1px solid var(--grey-light);
  padding-top: var(--space-lg);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 2rem;
  padding-bottom: var(--space-lg);
  align-items: start;
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--gold);
  margin-bottom: 0.75rem;
}

.footer-tagline {
  font-size: 0.875rem;
  color: var(--grey);
  line-height: 1.7;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-nav a {
  font-size: 0.875rem;
  color: var(--grey);
  transition: color var(--transition);
}

.footer-nav a:hover { color: var(--white); }

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-contact a {
  font-size: 0.875rem;
  color: var(--grey);
  transition: color var(--transition);
}

.footer-contact a:hover { color: var(--gold); }

.footer-bottom {
  border-top: 1px solid var(--grey-light);
  padding: 1.5rem 2rem;
  text-align: center;
}

.footer-bottom p {
  font-size: 0.8125rem;
  color: var(--grey);
}

/* =====================
   PAGES INTÉRIEURES
   ===================== */
.page-hero {
  padding: 10rem 0 5rem;
  border-bottom: 1px solid var(--grey-light);
}

.page-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  padding: var(--space-xl) 0;
}

.page-grid--full {
  grid-template-columns: 1fr;
}

/* =====================
   RESPONSIVE
   ===================== */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: 1fr 1fr; }
  .hero { grid-template-columns: 1fr; }
  .hero-lens { display: none; }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: var(--black);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    z-index: 99;
  }

  .nav-links.open { display: flex; }
  .nav-links a { font-size: 1.25rem; }
  .nav-toggle { display: flex; z-index: 101; }

  .services-grid { grid-template-columns: 1fr; }
  .projets-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .page-grid { grid-template-columns: 1fr; }
}

/* REDUCED MOTION */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}