/* ============================================================
   SIGNUS TECH — Feuille de style partagée
   Cormorant Garamond + DM Sans | Noir/Or | v2.0
   ============================================================ */

:root {
  --noir:        #080808;
  --noir-doux:   #111111;
  --noir-card:   #141414;
  --bordure:     #1e1e1e;
  --or:          #c9a84c;
  --or-clair:    #e8c97a;
  --or-sombre:   #8a6f32;
  --blanc:       #f5f2ec;
  --gris-clair:  #9a9590;
  --gris-doux:   #4a4642;
  --accent:      rgba(201,168,76,0.07);
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--noir);
  color: var(--blanc);
  font-family: 'DM Sans', sans-serif;
  font-weight: 300;
  line-height: 1.7;
  overflow-x: hidden;
}

/* Grain overlay discret */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 1000;
  opacity: 0.35;
}

/* ── TYPOGRAPHIE ── */
h1, h2, h3, h4 {
  font-family: 'Cormorant Garamond', serif;
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.or  { color: var(--or); }
.dim { color: var(--gris-clair); }

/* ── NAVIGATION ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  padding: 1.4rem 4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(8,8,8,0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(201,168,76,0.1);
  transition: padding 0.3s ease;
}

nav.scrolled { padding-top: 0.9rem; padding-bottom: 0.9rem; }

.logo {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: 0.06em;  /* réduit — c'était 0.14em, trop large */
  text-transform: uppercase;
  color: var(--blanc);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.0rem;  /* réduit — c'était 0.5rem */
}

.logo-s {
  width: 32px;
  height: 32px;
  background: var(--noir);
  color: var(--or);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.15rem;
  font-weight: 600;
  border-radius: 2px;
  flex-shrink: 0;
}

.logo-text {
  letter-spacing: 0.12em;
}

.logo span { color: var(--gris-clair); }

.logo .s-marque {
  color: var(--or);
  font-size: 1.4em;
  font-style: italic;
  font-weight: bold;
  line-height: 1;
}

.nav-links {
  display: flex;
  gap: 2.5rem;
  list-style: none;
  align-items: center;
}

.nav-links a {
  color: var(--gris-clair);
  text-decoration: none;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color 0.2s;
}

.nav-links a:hover { color: var(--or); }

.nav-cta {
  background: transparent;
  border: 1px solid var(--or) !important;
  color: var(--or) !important;
  padding: 0.5rem 1.4rem !important;
  border-radius: 2px;
  transition: all 0.2s !important;
}

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

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

.nav-toggle span {
  width: 24px;
  height: 1.5px;
  background: var(--or);
  display: block;
  transition: all 0.3s;
}

/* ── SECTIONS ── */
section {
  padding: 7rem 4rem;
  max-width: 1200px;
  margin: 0 auto;
}

.section-full {
  max-width: 100%;
  background: var(--noir-doux);
  padding: 7rem 0;
}

.section-full-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 4rem;
}

.section-tag {
  font-size: 0.7rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--or);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.section-tag::before {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--or);
  flex-shrink: 0;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 300;
  margin-bottom: 1.2rem;
}

.section-intro {
  font-size: 1rem;
  color: var(--gris-clair);
  max-width: 560px;
  margin-bottom: 4rem;
  line-height: 1.85;
}

/* ── BOUTONS ── */
.btn-primary {
  display: inline-block;
  background: var(--or);
  color: var(--noir);
  padding: 0.9rem 2.2rem;
  border: none;
  border-radius: 2px;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.25s;
}

.btn-primary:hover {
  background: var(--or-clair);
  transform: translateY(-1px);
  box-shadow: 0 8px 30px rgba(201,168,76,0.25);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--blanc);
  text-decoration: none;
  font-size: 0.82rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  transition: color 0.2s;
  border: none;
  background: none;
  cursor: pointer;
}

.btn-ghost::after { content: '→'; transition: transform 0.2s; }
.btn-ghost:hover { color: var(--or); }
.btn-ghost:hover::after { transform: translateX(4px); }

/* ── DIVIDER ── */
.divider {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--bordure), transparent);
}

/* ── ANIMATIONS ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.75s ease, transform 0.75s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── FOOTER ── */
footer {
  border-top: 1px solid var(--bordure);
  padding: 2.5rem 4rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.78rem;
  color: var(--gris-doux);
}

footer a {
  color: var(--gris-doux);
  text-decoration: none;
  transition: color 0.2s;
}

footer a:hover { color: var(--or); }

/* ── FORMULAIRE ── */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group.full { grid-column: 1 / -1; }

label {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gris-clair);
}

input, textarea, select {
  background: var(--noir-card);
  border: 1px solid var(--bordure);
  border-radius: 2px;
  padding: 0.85rem 1rem;
  color: var(--blanc);
  font-family: 'DM Sans', sans-serif;
  font-size: 0.9rem;
  font-weight: 300;
  transition: border-color 0.2s;
  outline: none;
  width: 100%;
  appearance: none;
  -webkit-appearance: none;
}

input:focus, textarea:focus, select:focus {
  border-color: var(--or-sombre);
  box-shadow: 0 0 0 2px rgba(201,168,76,0.08);
}

textarea { resize: vertical; min-height: 130px; }

select {
  padding: 0.85rem 2.5rem 0.85rem 1rem;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23c9a84c' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  cursor: pointer;
}

select option { background: var(--noir-card); color: var(--blanc); }

.form-submit {
  margin-top: 1rem;
  background: var(--or);
  color: var(--noir);
  border: none;
  padding: 1rem 2.5rem;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  border-radius: 2px;
  transition: all 0.25s;
  width: 100%;
}

.form-submit:hover {
  background: var(--or-clair);
  transform: translateY(-1px);
  box-shadow: 0 8px 30px rgba(201,168,76,0.2);
}

.form-submit:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  nav { padding: 1.1rem 1.5rem; }
  .nav-links { display: none; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0; background: rgba(8,8,8,0.97); padding: 2rem 1.5rem; gap: 1.5rem; border-bottom: 1px solid var(--bordure); }
  .nav-links.open { display: flex; }
  .nav-toggle { display: flex; }
  section { padding-left: 1.5rem; padding-right: 1.5rem; padding-top: 5rem; padding-bottom: 5rem; }
  .section-full-inner { padding: 0 1.5rem; }
  footer { padding: 2rem 1.5rem; flex-direction: column; text-align: center; }
  .form-grid { grid-template-columns: 1fr; }
}