/* ================================================================
   SDLV Invest — feuille de style
   Direction : éditorial patrimonial. Ivoire, encre, bronze.
   ================================================================ */

:root {
  --ivory: #f6f2ea;
  --ivory-deep: #efe9dd;
  --ink: #1c1a17;
  --ink-soft: #4a463f;
  --bronze: #9a6b3f;
  --bronze-light: #c89b6d;
  --line: rgba(28, 26, 23, 0.14);
  --line-dark: rgba(246, 242, 234, 0.16);
  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Instrument Sans", "Helvetica Neue", sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--ivory);
  color: var(--ink);
  line-height: 1.65;
  font-size: 1.0625rem;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 2.5rem);
}

/* ---------------- Header ---------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--ivory) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.25rem;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--ink);
  text-decoration: none;
}

.logo span {
  font-weight: 300;
  font-style: italic;
  color: var(--bronze);
}

.site-nav {
  display: flex;
  gap: 1.75rem;
  align-items: center;
}

.site-nav a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  transition: color 0.2s;
}

.site-nav a:hover { color: var(--bronze); }

.nav-cta {
  border: 1px solid var(--ink);
  padding: 0.45rem 1.1rem;
  border-radius: 999px;
  color: var(--ink) !important;
  transition: background 0.2s, color 0.2s !important;
}

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

@media (max-width: 720px) {
  .site-nav a:not(.nav-cta) { display: none; }
}

/* ---------------- Hero ---------------- */

.hero {
  position: relative;
  padding: clamp(5rem, 12vh, 9rem) 0 clamp(4rem, 9vh, 7rem);
  overflow: hidden;
  background:
    radial-gradient(ellipse 70% 60% at 85% 15%, rgba(200, 155, 109, 0.18), transparent 60%),
    var(--ivory);
}

.eyebrow {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--bronze);
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 6.5vw, 4.75rem);
  font-weight: 400;
  line-height: 1.08;
  letter-spacing: -0.015em;
  margin-bottom: 1.75rem;
}

.hero h1 em {
  font-style: italic;
  font-weight: 300;
  color: var(--bronze);
}

.hero-sub {
  max-width: 34rem;
  font-size: 1.125rem;
  color: var(--ink-soft);
  margin-bottom: 3rem;
}

.hero-meta {
  display: flex;
  gap: clamp(2rem, 6vw, 4.5rem);
  border-top: 1px solid var(--line);
  padding-top: 1.75rem;
  flex-wrap: wrap;
}

.hero-meta > div { display: flex; flex-direction: column; gap: 0.2rem; }

.meta-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-soft);
  opacity: 0.7;
}

.meta-value {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 500;
}

.hero-ornament {
  position: absolute;
  right: -6rem;
  top: 50%;
  transform: translateY(-50%);
  width: 30rem;
  height: 30rem;
  border: 1px solid rgba(154, 107, 63, 0.25);
  border-radius: 50%;
  pointer-events: none;
}

.hero-ornament::before {
  content: "";
  position: absolute;
  inset: 3.5rem;
  border: 1px solid rgba(154, 107, 63, 0.18);
  border-radius: 50%;
}

.hero-ornament::after {
  content: "";
  position: absolute;
  inset: 7rem;
  border: 1px dashed rgba(154, 107, 63, 0.22);
  border-radius: 50%;
}

@media (max-width: 900px) { .hero-ornament { display: none; } }

/* Révélation à l'arrivée */
.reveal {
  animation: rise 0.9s cubic-bezier(0.16, 1, 0.3, 1) both;
}
.d1 { animation-delay: 0.12s; }
.d2 { animation-delay: 0.24s; }
.d3 { animation-delay: 0.36s; }

@keyframes rise {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  .reveal { animation: none; }
}

/* ---------------- Sections ---------------- */

.section { padding: clamp(4rem, 10vh, 7.5rem) 0; }

.grid-2 {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(2.5rem, 6vw, 5.5rem);
  align-items: start;
}

@media (max-width: 820px) { .grid-2 { grid-template-columns: 1fr; } }

.section h2 {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 3.6vw, 2.7rem);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.section-heading .eyebrow { margin-bottom: 1rem; }

.heading-note {
  margin-top: 1rem;
  font-size: 0.92rem;
  color: var(--ink-soft);
}

.section-body p + p { margin-top: 1.15rem; }
.section-body { color: var(--ink-soft); }
.section-body p::first-letter { }

/* ---------------- Activités (fond sombre) ---------------- */

.section-dark {
  background: var(--ink);
  color: var(--ivory);
}

.section-dark .eyebrow { color: var(--bronze-light); }

.centered { text-align: center; margin-bottom: clamp(2.5rem, 6vh, 4rem); }

.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line-dark);
  border: 1px solid var(--line-dark);
}

@media (max-width: 820px) { .cards { grid-template-columns: 1fr; } }

.card {
  background: var(--ink);
  padding: clamp(1.75rem, 3.5vw, 2.75rem);
  transition: background 0.25s;
}

.card:hover { background: #26231f; }

.card-index {
  display: block;
  font-family: var(--font-display);
  font-size: 1.6rem;
  color: var(--bronze-light);
  margin-bottom: 1.4rem;
}

.card h3 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 500;
  margin-bottom: 0.85rem;
}

.card p {
  font-size: 0.97rem;
  color: rgba(246, 242, 234, 0.72);
}

/* ---------------- Faits légaux ---------------- */

.facts { border-top: 1px solid var(--line); }

.facts > div {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 3fr);
  gap: 1rem;
  padding: 0.8rem 0;
  border-bottom: 1px solid var(--line);
}

.facts dt {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
  align-self: center;
}

.facts dd { font-size: 1rem; color: var(--ink); }

/* ---------------- Contact ---------------- */

.section-contact {
  background: var(--ivory-deep);
  border-top: 1px solid var(--line);
}

.contact-inner {
  display: grid;
  grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: start;
}

@media (max-width: 820px) { .contact-inner { grid-template-columns: 1fr; } }

.contact-note {
  margin-top: 1.25rem;
  color: var(--ink-soft);
  max-width: 28rem;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  border-left: 1px solid var(--line);
  padding-left: clamp(1.5rem, 3vw, 2.5rem);
}

@media (max-width: 820px) {
  .contact-details { border-left: none; padding-left: 0; }
}

.contact-block p { margin-top: 0.4rem; }

.contact-block a {
  color: var(--bronze);
  text-decoration: none;
  border-bottom: 1px solid rgba(154, 107, 63, 0.35);
  transition: border-color 0.2s;
}

.contact-block a:hover { border-color: var(--bronze); }

/* ---------------- Footer ---------------- */

.site-footer {
  background: var(--ink);
  color: rgba(246, 242, 234, 0.65);
  font-size: 0.88rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  padding-top: 1.5rem;
  padding-bottom: 1.5rem;
}

.site-footer a {
  color: var(--bronze-light);
  text-decoration: none;
}

.site-footer a:hover { text-decoration: underline; }

/* ---------------- Page mentions légales ---------------- */

.legal-page { padding: clamp(3.5rem, 8vh, 6rem) 0; }

.legal-page .container { max-width: 780px; }

.legal-page h1 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  font-weight: 400;
  margin-bottom: 2.5rem;
}

.legal-page h2 {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 500;
  margin: 2.25rem 0 0.75rem;
}

.legal-page p { color: var(--ink-soft); margin-bottom: 0.9rem; }

.legal-page a { color: var(--bronze); }

.back-link {
  display: inline-block;
  margin-bottom: 2rem;
  font-size: 0.9rem;
  color: var(--bronze);
  text-decoration: none;
}

.back-link:hover { text-decoration: underline; }