:root{
  --bg-1: #0f172a; /* bleu nocturne */
  --bg-2: #1b102a; /* mauve profond */
  --accent: #cdb7ff; /* accent clair */
  --muted: #bfb6d9;
  --card-bg: rgba(255,255,255,0.03);
  --glass: rgba(0,0,0,0.45);
  --max-width: 1100px;
  --radius: 8px;
}

* { box-sizing: border-box; }
html,body { height:100%; }
body {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  background: linear-gradient(180deg, var(--bg-2) 0%, var(--bg-1) 100%);
  color: #eae6f7;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  line-height:1.5;
}

.container {
  width: calc(100% - 2rem);
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem 0;
}

/* Header / Nav */
.site-header {
  background: linear-gradient(180deg, rgba(10,8,12,0.25), rgba(0,0,0,0.25));
  border-bottom: 1px solid rgba(255,255,255,0.03);
  position: sticky;
  top: 0;
  z-index: 30;
}
.header-inner {
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.brand {
  margin:0;
  font-size:1.25rem;
  color:var(--accent);
  padding:0.5rem 0;
  font-weight:600;
  letter-spacing:0.02em;
}
nav a {
  margin-left:1.25rem;
  color: var(--accent);
  text-decoration:none;
  font-size:0.98rem;
}
nav a[aria-current="page"] {
  text-decoration:underline;
  text-underline-offset:4px;
}

/* Hero */
.hero{
  min-height: 56vh;
  display:flex;
  align-items:center;
  justify-content:center;
  background-image: url('images/hero.jpg');
  background-size: cover;
  background-position: center;
  position: relative;
}
.hero::after{
  /* subtle pattern fallback if no image */
  content:"";
  position:absolute;
  inset:0;
  background: linear-gradient(180deg, rgba(11,6,17,0.45), rgba(3,6,16,0.6));
}
.hero-overlay{
  position:relative;
  z-index:2;
  width:100%;
}
.hero-content{
  max-width:900px;
  margin: 6vh auto;
  padding:3rem;
  background: linear-gradient(180deg, rgba(17,9,25,0.35), rgba(6,8,14,0.35));
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.03);
}
.hero-title{
  margin:0 0 0.25rem 0;
  font-size:2.1rem;
  color: #fff;
  letter-spacing:0.02em;
}
.hero-subtitle{
  margin:0 0 1rem 0;
  color: var(--muted);
  font-size:1.05rem;
}
.lead{
  margin:0 0 1.25rem 0;
  color:#e6e1f8;
}

/* Cards and codex */
.cards {
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(240px, 1fr));
  gap:1rem;
  margin-top:1rem;
}
.book-card, .codex-item {
  background: var(--card-bg);
  padding:1rem;
  border-radius:8px;
  border:1px solid rgba(255,255,255,0.02);
}
.codex-list {
  display:grid;
  gap:1rem;
  margin-top:1rem;
}

/* Two column */
.two-column{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap:2rem;
}
.col { background: var(--card-bg); padding:1.25rem; border-radius:8px; border:1px solid rgba(255,255,255,0.02); }

/* Contact form */
.contact-form{
  display:grid;
  gap:0.75rem;
  max-width:700px;
  margin-top:1rem;
}
.contact-form input[type="text"],
.contact-form input[type="email"],
.contact-form textarea {
  background: rgba(255,255,255,0.02);
  border:1px solid rgba(255,255,255,0.04);
  color:var(--accent);
  padding:0.6rem;
  border-radius:6px;
  font-family: inherit;
}
.contact-form label { font-size:0.9rem; color:var(--muted); }
.small { font-size:0.875rem; }

/* Buttons */
.btn {
  display:inline-block;
  background: linear-gradient(180deg, rgba(205,183,255,0.18), rgba(205,183,255,0.12));
  color: #fff;
  padding:0.6rem 1rem;
  border-radius:6px;
  text-decoration:none;
  border:1px solid rgba(205,183,255,0.12);
  transition: transform 120ms ease;
}
.btn:hover { transform: translateY(-2px); }
.btn.small { padding:0.4rem 0.7rem; font-size:0.95rem; }

/* Footer */
.site-footer {
  background: var(--glass);
  border-top:1px solid rgba(255,255,255,0.03);
  padding:1rem 0;
  color:var(--muted);
}
.muted { color:var(--muted); }

/* Responsive */
@media (max-width: 800px){
  .two-column { grid-template-columns: 1fr; }
  .header-inner { flex-direction: column; align-items:flex-start; gap:0.75rem; }
  nav { display:flex; flex-wrap:wrap; gap:0.5rem; }
  .hero-content{ margin: 4vh 1rem; padding:1.25rem; }
  .hero-title { font-size:1.6rem; }
}