/* ============================================
   SYNORMA — Design System (Light edition)
   ============================================ */

:root {
  /* Palette — light/cream primary */
  --bg: #F4EFE6;            /* warm cream primary */
  --bg-2: #ECE7DC;          /* slightly deeper cream */
  --paper: #FFFFFF;          /* pure white for cards/surfaces */
  --paper-2: #FBF7F0;        /* soft tinted paper */
  --night: #101D32;          /* navy from logo */
  --night-2: #0C1626;        /* deeper navy */
  --slate: #475569;
  --muted: #6B7B8A;
  --muted-2: #5A6B7D;

  --text: #101D32;           /* default text — navy */
  --text-soft: #2A3445;
  --text-light: #F4EFE6;     /* text on dark surfaces */
  --text-light-muted: rgba(244, 239, 230, 0.72);

  --bronze: #BD9551;
  --bronze-2: #d4ae6c;
  --bronze-3: #A87E3B;
  --bronze-soft: rgba(189, 149, 81, 0.10);

  --line: rgba(16, 29, 50, 0.10);
  --line-soft: rgba(16, 29, 50, 0.07);
  --line-strong: rgba(16, 29, 50, 0.18);

  /* Dark-section overrides */
  --line-d: rgba(244, 239, 230, 0.12);
  --line-d-soft: rgba(244, 239, 230, 0.08);

  /* Type */
  --font-sans: "Roboto", "Inter", system-ui, -apple-system, sans-serif;
  --font-display: "Manrope", "Roboto", system-ui, sans-serif;

  /* Spacing scale */
  --gutter: clamp(20px, 4vw, 56px);
  --section-y: clamp(72px, 9vw, 140px);

  /* Radii */
  --r-sm: 6px;
  --r-md: 12px;
  --r-lg: 18px;
  --r-xl: 24px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-weight: 300;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

/* ====== Layout ====== */
.container {
  width: 100%;
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.container-wide { max-width: 1480px; }

.section {
  position: relative;
  padding: var(--section-y) 0;
}

/* Dark section helper */
.section-dark {
  background: var(--night);
  color: var(--text-light);
}
.section-dark h1, .section-dark h2, .section-dark h3, .section-dark h4 { color: var(--text-light); }
.section-dark p { color: var(--text-light-muted); }
.section-dark .lead { color: rgba(244, 239, 230, 0.88); }
.section-dark .muted { color: var(--text-light-muted); }
.section-dark .eyebrow { color: var(--bronze-2); }
.section-dark .kicker { color: rgba(244, 239, 230, 0.55); }

/* ====== Type ====== */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.08;
  margin: 0;
  color: var(--text);
}
h1 { font-size: clamp(36px, 5.2vw, 72px); font-weight: 300; }
h2 { font-size: clamp(28px, 3.6vw, 48px); font-weight: 400; }
h3 { font-size: clamp(20px, 1.9vw, 26px); font-weight: 500; letter-spacing: -0.01em; }
h4 { font-size: clamp(17px, 1.3vw, 19px); font-weight: 500; letter-spacing: 0; }

p { margin: 0; color: var(--muted-2); }
.lead {
  font-size: clamp(16px, 1.3vw, 19px);
  line-height: 1.65;
  color: var(--text-soft);
  font-weight: 300;
  max-width: 62ch;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--bronze-3);
}
.eyebrow::before {
  content: "";
  display: inline-block;
  width: 24px;
  height: 1px;
  background: var(--bronze);
  opacity: 0.7;
}

.kicker {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

.title-xl {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(32px, 4.4vw, 60px);
  line-height: 1.06;
  letter-spacing: -0.025em;
  color: var(--text);
}

.gold, .bronze { color: var(--bronze-3); }
.muted { color: var(--muted-2); }

/* ====== Buttons ====== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 14px 24px;
  border-radius: 999px;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.02em;
  border: 1px solid transparent;
  transition: transform .35s cubic-bezier(.2,.7,.2,1), background .25s, border-color .25s, color .25s;
}
.btn .arrow {
  width: 14px; height: 14px;
  transition: transform .35s cubic-bezier(.2,.7,.2,1);
}
.btn:hover .arrow { transform: translateX(4px); }
.btn-primary {
  background: var(--night);
  color: var(--text-light);
  border-color: var(--night);
}
.btn-primary:hover { background: var(--night-2); border-color: var(--night-2); }
.btn-bronze {
  background: var(--bronze);
  color: #1a1407;
  border-color: var(--bronze);
}
.btn-bronze:hover { background: var(--bronze-2); border-color: var(--bronze-2); }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--line-strong);
}
.btn-ghost:hover { border-color: var(--night); }

/* Dark-section button overrides */
.section-dark .btn-primary {
  background: var(--bronze);
  color: #1a1407;
  border-color: var(--bronze);
}
.section-dark .btn-primary:hover { background: var(--bronze-2); border-color: var(--bronze-2); }
.section-dark .btn-ghost {
  color: var(--text-light);
  border-color: rgba(244,239,230,0.25);
}
.section-dark .btn-ghost:hover { border-color: var(--bronze); color: var(--bronze-2); }

/* ====== Navigation ====== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  padding: 14px 0;
  background: linear-gradient(to bottom, rgba(244, 239, 230, 0.85), rgba(244, 239, 230, 0));
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: background .3s, border-color .3s, padding .3s;
}
.nav.scrolled {
  background: rgba(244, 239, 230, 0.92);
  border-bottom-color: var(--line-soft);
  padding: 10px 0;
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.brand-logo {
  height: 44px;
  width: auto;
  display: block;
}
.brand-logo-light { display: none; }
.brand-logo-dark  { display: block; }
.page-dark-hero .brand-logo-light { display: block; }
.page-dark-hero .brand-logo-dark  { display: none; }
.page-dark-hero .nav.scrolled .brand-logo-light { display: none; }
.page-dark-hero .nav.scrolled .brand-logo-dark  { display: block; }
.footer .brand-logo { height: 72px; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-links a {
  position: relative;
  padding: 10px 16px;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--text-soft);
  transition: color .2s;
}
.nav-links a:hover, .nav-links a.active { color: var(--bronze-3); }
.nav-links a.active::after {
  content: "";
  position: absolute;
  left: 16px; right: 16px; bottom: 4px;
  height: 1px;
  background: var(--bronze);
}
.nav-cta {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  transition: border-color .2s, color .2s, background .2s;
}
.nav-cta:hover { border-color: var(--night); background: var(--night); color: var(--text-light); }
.nav-toggle {
  display: none;
  width: 42px; height: 42px;
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--text);
  align-items: center;
  justify-content: center;
}

/* Nav theming over dark hero (home only) */
.page-dark-hero .nav:not(.scrolled) {
  background: linear-gradient(to bottom, rgba(12,22,38,0.55), rgba(12,22,38,0));
}
.page-dark-hero .nav:not(.scrolled) .nav-links a { color: rgba(244, 239, 230, 0.85); }
.page-dark-hero .nav:not(.scrolled) .nav-links a:hover,
.page-dark-hero .nav:not(.scrolled) .nav-links a.active { color: var(--bronze-2); }
.page-dark-hero .nav:not(.scrolled) .nav-cta {
  color: var(--text-light);
  border-color: rgba(244, 239, 230, 0.28);
}
.page-dark-hero .nav:not(.scrolled) .nav-cta:hover {
  background: var(--text-light);
  color: var(--text);
  border-color: var(--text-light);
}
.page-dark-hero .nav:not(.scrolled) .nav-toggle {
  border-color: rgba(244,239,230,0.3);
  color: var(--text-light);
}

/* ====== Hero ====== */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  padding-top: 140px;
  padding-bottom: 80px;
  overflow: hidden;
  color: var(--text-light);
}
.hero-photo {
  position: absolute; inset: 0;
  z-index: 0;
}
.hero-photo img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: brightness(0.55) saturate(0.85);
}
.hero-photo::after {
  content: "";
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(12, 22, 38, 0.35) 0%, rgba(12, 22, 38, 0.05) 35%, rgba(12, 22, 38, 0.78) 100%),
    linear-gradient(90deg, rgba(12, 22, 38, 0.55) 0%, rgba(12, 22, 38, 0.15) 60%, rgba(12, 22, 38, 0.05) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
}
.hero h1 { color: var(--text-light); }
.hero h1 .accent { color: var(--bronze-2); font-style: italic; font-weight: 300; }
.hero p { color: rgba(244, 239, 230, 0.85); }
.hero .eyebrow { color: var(--bronze-2); }
.hero .lead { color: rgba(244, 239, 230, 0.92); }

.hero-scroll {
  position: absolute;
  bottom: 28px;
  left: var(--gutter);
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(244, 239, 230, 0.6);
  z-index: 3;
}
.hero-scroll .line { width: 56px; height: 1px; background: rgba(244,239,230,0.4); position: relative; overflow: hidden; }
.hero-scroll .line::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(to right, transparent, var(--bronze-2), transparent);
  animation: scan 2.8s ease-in-out infinite;
}
@keyframes scan {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

/* ====== Section header ====== */
.section-head {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 60px;
  align-items: end;
  margin-bottom: 64px;
}
.section-head .title { max-width: 16ch; }
.section-head .desc { color: var(--muted-2); font-size: clamp(16px, 1.15vw, 18px); max-width: 56ch; line-height: 1.65; }
.section-dark .section-head .desc { color: var(--text-light-muted); }
.section-head-solo { grid-template-columns: 1fr; margin-bottom: 48px; }
.section-head-solo .section-head-spacer { display: none; }

/* ====== Cards ====== */
.card {
  position: relative;
  background: var(--paper);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
  padding: 32px;
  overflow: hidden;
  transition: border-color .35s, transform .35s, background .35s, box-shadow .35s;
}
.card:hover {
  border-color: var(--line-strong);
  transform: translateY(-2px);
  box-shadow: 0 18px 40px -24px rgba(16, 29, 50, 0.18);
}
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 28px;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--bronze-3);
}
.card-link::after {
  content: "→";
  transition: transform .3s;
}
.card:hover .card-link::after { transform: translateX(4px); }

/* ====== Reveal animations ====== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .9s cubic-bezier(.2,.7,.2,1), transform .9s cubic-bezier(.2,.7,.2,1);
}
.reveal.in { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: .08s; }
.reveal-delay-2 { transition-delay: .16s; }
.reveal-delay-3 { transition-delay: .24s; }
.reveal-delay-4 { transition-delay: .32s; }

/* ====== Footer ====== */
.footer {
  position: relative;
  padding: 90px 0 36px;
  background: var(--night);
  color: var(--text-light);
}
.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 64px;
}
.footer h4 {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(244, 239, 230, 0.55);
  margin-bottom: 20px;
}
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer li { margin-bottom: 10px; }
.footer li a {
  font-size: 14px;
  color: rgba(244, 239, 230, 0.82);
  transition: color .2s;
}
.footer li a:hover { color: var(--bronze-2); }
.footer-tag {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 300;
  line-height: 1.4;
  color: var(--text-light);
  max-width: 28ch;
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 28px;
  border-top: 1px solid rgba(244, 239, 230, 0.1);
  font-size: 12px;
  color: rgba(244, 239, 230, 0.5);
  letter-spacing: 0.04em;
}

/* ====== Tag / Pill ====== */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--bronze-soft);
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--bronze-3);
}
.tag .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--bronze);
}

/* ====== Page hero (sub pages) ====== */
.page-hero {
  position: relative;
  padding: 180px 0 80px;
  overflow: hidden;
  background: var(--bg);
  border-bottom: 1px solid var(--line-soft);
}
.page-hero-photo {
  position: absolute;
  top: 0; right: 0; bottom: 0;
  width: 42%;
  z-index: 0;
  border-bottom-left-radius: 0;
}
.page-hero-photo img {
  width: 100%; height: 100%;
  object-fit: cover;
}
.page-hero-photo::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(90deg, var(--bg) 0%, rgba(244, 239, 230, 0.1) 35%, rgba(244, 239, 230, 0) 100%);
}
.page-hero h1 { font-size: clamp(32px, 4.4vw, 60px); max-width: 18ch; }
.page-hero .breadcrumb {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 28px;
}
.page-hero .breadcrumb .gold { color: var(--bronze-3); }

/* ====== Media frames (photography) ====== */
.media {
  position: relative;
  overflow: hidden;
  border-radius: var(--r-xl);
  border: 1px solid var(--line);
  background: var(--paper-2);
}
.media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: saturate(0.95);
  transition: transform 1.4s cubic-bezier(.2,.7,.2,1);
}
.media:hover img { transform: scale(1.03); }
.media-tag {
  position: absolute;
  left: 24px; bottom: 24px;
  display: inline-flex; align-items: center; gap: 10px;
  padding: 8px 14px;
  background: rgba(16, 29, 50, 0.78);
  backdrop-filter: blur(6px);
  border-radius: 999px;
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--bronze-2);
  z-index: 2;
}
.media-tag .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--bronze-2);
  box-shadow: 0 0 12px rgba(189,149,81,0.6);
}
.media-fullbleed {
  position: relative;
  width: 100%;
  height: clamp(420px, 56vh, 560px);
  overflow: hidden;
}
.media-fullbleed img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: brightness(0.65) saturate(0.85);
}
.media-fullbleed::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(12,22,38,0.4) 0%, rgba(12,22,38,0.2) 40%, rgba(12,22,38,0.8) 100%);
}
.media-fullbleed .container {
  position: absolute; inset: 0;
  display: flex; align-items: flex-end;
  padding-bottom: 64px;
  z-index: 2;
}
.media-fullbleed .quote-line {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(22px, 2.4vw, 34px);
  color: var(--text-light);
  letter-spacing: -0.01em;
  line-height: 1.35;
  max-width: 32ch;
}
.media-fullbleed .quote-line .gold {
  color: var(--bronze-2);
  font-size: 1.3em;
  line-height: 0;
  vertical-align: middle;
}

/* ====== Generic utilities ====== */
.flex { display: flex; }
.flex-between { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.col { display: flex; flex-direction: column; }
.gap-sm { gap: 12px; }
.gap-md { gap: 20px; }
.gap-lg { gap: 32px; }
.center { text-align: center; }

/* ====== Responsive ====== */
@media (max-width: 980px) {
  .hero { padding-top: 120px; min-height: auto; padding-bottom: 60px; }
  .section-head { grid-template-columns: 1fr; gap: 24px; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .nav-links { display: none; }
  .nav-toggle { display: inline-flex; }
  .nav-cta { display: none; }
  .page-hero-photo { display: none; }

  /* ── Menu mobile ouvert ── */
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(244, 239, 230, 0.97);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line-soft);
    padding: 8px var(--gutter) 20px;
    box-shadow: 0 8px 24px -8px rgba(16,29,50,0.15);
    z-index: 49;
  }
  .nav-links.open a {
    padding: 14px 0;
    font-size: 15px;
    font-weight: 500;
    letter-spacing: 0;
    border-bottom: 1px solid var(--line-soft);
    color: var(--text-soft);
  }
  .nav-links.open a:last-child { border-bottom: none; }
  .nav-links.open a.active,
  .nav-links.open a:hover { color: var(--bronze-3); }
  .nav-links.open a.active::after { display: none; }

  /* Forcer texte lisible sur fond crème quand menu ouvert sur hero sombre */
  .page-dark-hero .nav:not(.scrolled) .nav-links.open a { color: var(--text-soft); }
  .page-dark-hero .nav:not(.scrolled) .nav-links.open a.active,
  .page-dark-hero .nav:not(.scrolled) .nav-links.open a:hover { color: var(--bronze-3); }
}
@media (max-width: 560px) {
  .footer-top { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 12px; align-items: flex-start; }
  .card { padding: 24px; }
}