/* =========================================================
   BiblioTech — feuille de style pédagogique
   Tu peux modifier les couleurs ici si tu veux personnaliser
   ========================================================= */

:root {
  --bg: #fafaf7;
  --ink: #1a1a1a;
  --muted: #6b6b6b;
  --accent: #d64933;
  --border: #e5e5e0;
  --card: #ffffff;
}

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

html, body {
  background: var(--bg);
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  line-height: 1.6;
}

main {
  max-width: 980px;
  margin: 0 auto;
  padding: 3rem 1.5rem;
}

/* --- Header --- */
.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border);
  background: var(--card);
}

.logo {
  font-weight: bold;
  font-size: 1.25rem;
  text-decoration: none;
  color: var(--ink);
  letter-spacing: -0.02em;
}

.nav {
  display: flex;
  gap: 1.5rem;
}

.nav a {
  text-decoration: none;
  color: var(--muted);
  font-size: 0.95rem;
}

.nav a:hover,
.nav a.active {
  color: var(--accent);
}

/* --- Typographie --- */
h1 {
  font-size: 2.5rem;
  line-height: 1.15;
  margin-bottom: 1rem;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.75rem;
  color: var(--accent);
  margin-bottom: 1rem;
  font-family: Arial, sans-serif;
}

.lede {
  font-size: 1.15rem;
  color: var(--muted);
  margin-bottom: 2rem;
  max-width: 60ch;
}

.muted {
  color: var(--muted);
  font-size: 0.9rem;
}

/* --- Boutons --- */
.btn {
  display: inline-block;
  padding: 0.9rem 1.5rem;
  border: none;
  border-radius: 4px;
  font-family: inherit;
  font-size: 1rem;
  cursor: pointer;
  text-decoration: none;
  margin-right: 0.75rem;
  margin-top: 0.5rem;
}

.btn-primary {
  background: var(--accent);
  color: white;
}

.btn-primary:hover {
  background: #b53d2a;
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--ink);
}

/* --- Hero --- */
.hero {
  padding: 2rem 0 3rem;
}

/* --- Features --- */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
  padding-top: 3rem;
  border-top: 1px solid var(--border);
}

.feature {
  padding: 1rem 0;
}

.feature p {
  color: var(--muted);
  font-size: 0.95rem;
}

/* --- Page produit --- */
.product {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

@media (max-width: 720px) {
  .product { grid-template-columns: 1fr; }
}

.book-cover {
  background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
  color: white;
  aspect-ratio: 3/4;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: Georgia, serif;
  font-size: 2rem;
  text-align: center;
  border-radius: 4px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.15);
}

.price {
  font-size: 1.75rem;
  font-weight: bold;
  color: var(--accent);
  margin: 1rem 0;
}

/* --- Panier --- */
.cart-item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 1.5rem;
  align-items: center;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--border);
}

.cart-item-cover {
  width: 60px;
  height: 80px;
  background: #1a1a1a;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 3px;
  font-weight: bold;
}

.cart-item-price {
  font-weight: bold;
}

.cart-summary {
  margin-top: 2rem;
  padding: 1.5rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 4px;
}

.cart-summary .line {
  display: flex;
  justify-content: space-between;
  padding: 0.5rem 0;
}

.cart-summary .total {
  font-size: 1.25rem;
  font-weight: bold;
  border-top: 1px solid var(--border);
  margin-top: 0.5rem;
  padding-top: 1rem;
}

/* --- Confirmation --- */
.confirmation {
  text-align: center;
  padding: 2rem 0;
}

.check {
  width: 80px;
  height: 80px;
  background: var(--accent);
  color: white;
  border-radius: 50%;
  font-size: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 2rem;
}

/* --- Formulaire --- */
.form {
  display: grid;
  gap: 1rem;
  max-width: 500px;
}

.form label {
  display: grid;
  gap: 0.4rem;
}

.form label span {
  font-size: 0.9rem;
  color: var(--muted);
  font-family: Arial, sans-serif;
}

.form input,
.form select,
.form textarea {
  font-family: inherit;
  font-size: 1rem;
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--card);
}

.form input:focus,
.form select:focus,
.form textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
}

.form-success {
  padding: 1rem;
  background: #e8f5e9;
  color: #2e7d32;
  border-radius: 4px;
  margin-top: 1rem;
}

/* --- Footer --- */
.site-footer {
  text-align: center;
  padding: 2rem 1.5rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.85rem;
  margin-top: 4rem;
}