/* ============================================================
   GPRF — Régie publicitaire de médias
   Palette : noir profond · ivoire crème · accent ambré
   Esprit : éditorial, premium, presse haut de gamme
   ============================================================ */

:root {
  --black:    #0d0d0f;
  --ink:      #1a1a1d;
  --graphite: #2a2a2e;
  --grey-800: #3a3a40;
  --grey-500: #7a7a7f;
  --grey-300: #b8b3a8;
  --grey-200: #d9d3c5;

  --cream:    #f5f1e8;        /* fond crème principal */
  --cream-dark:#ede7d8;        /* hover / alt */
  --paper:    #faf7f0;         /* blanc cassé */
  --white:    #ffffff;

  --amber:    #c8761d;         /* accent ambré principal */
  --amber-dark:#a35e12;
  --amber-light:#e8b87a;
  --amber-bg: #f7ead5;

  --accent:   var(--amber);

  --radius:    6px;
  --radius-lg: 14px;
  --shadow-sm: 0 1px 3px rgba(13,13,15,.08);
  --shadow:    0 8px 30px rgba(13,13,15,.12);
  --shadow-lg: 0 30px 60px rgba(13,13,15,.18);

  --container: 1200px;
  --font-serif: 'Fraunces', Georgia, 'Times New Roman', serif;
  --font-sans:  'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  color: var(--ink);
  background: var(--cream);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--ink); text-decoration: none; transition: color .2s, opacity .2s; }
a:hover { color: var(--amber); }

/* Titres — Fraunces serif */
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 .6em;
  color: var(--black);
}
h1 { font-size: clamp(2.2rem, 5vw, 4rem); font-weight: 500; letter-spacing: -0.035em; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); font-weight: 500; letter-spacing: -0.028em; }
h3 { font-size: 1.35rem; }
h4 { font-size: 1.05rem; font-family: var(--font-sans); font-weight: 600; letter-spacing: 0; }
p  { margin: 0 0 1em; color: var(--grey-800); }
ul { margin: 0 0 1em; padding-left: 1.2em; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 28px; }

/* Eyebrow / tag éditorial */
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-sans);
  font-size: 11px; font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: var(--amber);
}
.eyebrow::before {
  content: ''; width: 24px; height: 1px; background: var(--amber);
}

/* ---------- Boutons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 28px; border-radius: 999px;
  font-family: var(--font-sans);
  font-weight: 500; font-size: 15px; cursor: pointer;
  border: 1px solid transparent; transition: all .25s ease;
  text-decoration: none; line-height: 1;
}
.btn-primary { background: var(--black); color: var(--cream); border-color: var(--black); }
.btn-primary:hover { background: var(--amber); border-color: var(--amber); color: var(--white); transform: translateY(-1px); box-shadow: var(--shadow); }
.btn-outline { background: transparent; color: var(--black); border-color: var(--black); }
.btn-outline:hover { background: var(--black); color: var(--cream); }
.btn-ghost { background: transparent; color: var(--amber); border-color: var(--amber); }
.btn-ghost:hover { background: var(--amber); color: var(--white); }
.btn-sm { padding: 10px 20px; font-size: 13px; }
.btn-lg { padding: 18px 36px; font-size: 16px; }
.btn-block { width: 100%; justify-content: center; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(245,241,232,.88);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid rgba(13,13,15,.08);
}
.nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 80px; }
.brand { display: flex; align-items: baseline; gap: 10px; font-weight: 700; color: var(--black); font-size: 20px; }
.brand-mark {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--black); color: var(--amber);
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--font-serif); font-weight: 600; font-size: 20px;
  align-self: center;
}
.brand-text { font-family: var(--font-serif); font-weight: 600; letter-spacing: 0.02em; }
.brand-sub { font-family: var(--font-sans); font-size: 12px; color: var(--grey-500); font-weight: 500; letter-spacing: 0; }
.main-nav { display: flex; align-items: center; gap: 32px; }
.main-nav a { color: var(--ink); font-weight: 500; font-size: 14px; position: relative; }
.main-nav a:not(.btn)::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: -4px;
  height: 1px; background: var(--amber); transform: scaleX(0);
  transform-origin: left; transition: transform .25s;
}
.main-nav a:not(.btn):hover::after,
.main-nav a.active::after { transform: scaleX(1); }
.main-nav a.active { color: var(--amber); }
.main-nav a.btn-primary { color: var(--cream); }
.main-nav a.btn-primary:hover { color: var(--white); }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 24px; height: 1.5px; background: var(--black); }

/* ---------- Hero ---------- */
.hero {
  position: relative; padding: 100px 0 120px; overflow: hidden;
  background: var(--cream);
  border-bottom: 1px solid rgba(13,13,15,.08);
}
.hero-inner { position: relative; max-width: 900px; }
.hero h1 { margin: 28px 0 28px; }
.hero h1 em { font-style: italic; color: var(--amber); font-weight: 400; }
.hero .lead { font-size: clamp(1.1rem, 1.6vw, 1.35rem); color: var(--grey-800); max-width: 680px; margin-bottom: 40px; font-weight: 400; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-meta {
  position: absolute; right: 28px; top: 130px;
  font-family: var(--font-serif); font-style: italic;
  color: var(--grey-500); font-size: 13px;
  writing-mode: vertical-rl; text-orientation: mixed;
}

/* Bande de stats */
.stats-bar {
  background: var(--black); color: var(--cream);
  padding: 50px 0;
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px; text-align: center; }
.stat-num {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 3rem); font-weight: 500;
  color: var(--amber); line-height: 1; letter-spacing: -0.02em;
}
.stat-label {
  font-size: 12px; color: var(--grey-300);
  text-transform: uppercase; letter-spacing: 0.15em;
  margin-top: 10px;
}

/* ---------- Sections ---------- */
section { padding: 100px 0; }
.section-title { text-align: center; margin-bottom: 70px; }
.section-title h2 { margin-top: 14px; }
.section-title p { max-width: 640px; margin: 16px auto 0; font-size: 1.05rem; }

/* ---------- Services / valeurs (home) ---------- */
.values-grid {
  display: grid; gap: 0;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  border-top: 1px solid rgba(13,13,15,.12);
}
.value {
  padding: 40px 30px;
  border-right: 1px solid rgba(13,13,15,.12);
  border-bottom: 1px solid rgba(13,13,15,.12);
  transition: background .3s;
}
.value:hover { background: var(--paper); }
.value:last-child { border-right: 0; }
.value .num {
  font-family: var(--font-serif); font-style: italic;
  color: var(--amber); font-size: 14px;
  margin-bottom: 20px; letter-spacing: 0.05em;
}
.value h3 { font-size: 1.2rem; margin-bottom: 10px; }
.value p { font-size: 14.5px; margin: 0; }

/* ---------- Produits / formats ---------- */
.bg-paper  { background: var(--paper); }
.bg-black  { background: var(--black); color: var(--cream); }
.bg-black h2, .bg-black h3 { color: var(--white); }
.bg-black p { color: var(--grey-300); }

.products-grid {
  display: grid; gap: 0;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  border: 1px solid rgba(13,13,15,.12);
  background: var(--white);
}
.product-card {
  position: relative; display: flex; flex-direction: column;
  padding: 40px 34px;
  background: var(--white);
  border-right: 1px solid rgba(13,13,15,.12);
  border-bottom: 1px solid rgba(13,13,15,.12);
  transition: background .3s;
}
.product-card:hover { background: var(--paper); }
.product-card.featured {
  background: var(--black); color: var(--cream);
}
.product-card.featured h3 { color: var(--white); }
.product-card.featured p, .product-card.featured .product-features li { color: var(--grey-300); }
.product-card.featured .product-tagline { color: var(--amber-light); }
.product-card.featured .product-price { color: var(--amber); }
.product-card.featured .product-price small { color: var(--grey-300); }
.product-card.featured .product-features li { border-color: rgba(255,255,255,.08); }
.product-card.featured .btn-primary { background: var(--amber); border-color: var(--amber); color: var(--white); }
.product-card.featured .btn-primary:hover { background: var(--white); color: var(--black); border-color: var(--white); }

.product-badge {
  position: absolute; top: 24px; right: 24px;
  font-family: var(--font-sans);
  font-size: 10px; font-weight: 600;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--amber);
  padding: 5px 10px;
  border: 1px solid var(--amber);
  border-radius: 999px;
}
.product-card.featured .product-badge { background: var(--amber); color: var(--black); border-color: var(--amber); }

.product-tagline {
  font-family: var(--font-sans);
  font-size: 11px; font-weight: 700;
  letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 18px;
}
.product-card h3 {
  font-family: var(--font-serif);
  font-size: 1.7rem; font-weight: 500;
  margin-bottom: 10px; letter-spacing: -0.02em;
}
.product-short {
  color: var(--grey-500); font-size: 14.5px;
  margin-bottom: 30px; min-height: 42px;
}
.product-price {
  font-family: var(--font-serif);
  font-size: 2.6rem; font-weight: 500;
  color: var(--black); letter-spacing: -0.03em;
  line-height: 1; margin-bottom: 6px;
}
.product-price small {
  display: block; margin-top: 8px;
  font-size: 12px; color: var(--grey-500);
  font-family: var(--font-sans); font-weight: 400;
  letter-spacing: 0.04em; text-transform: uppercase;
}
.product-features {
  list-style: none; padding: 0; margin: 26px 0 30px;
  flex: 1;
  border-top: 1px solid rgba(13,13,15,.08);
}
.product-features li {
  position: relative;
  padding: 11px 0 11px 22px;
  font-size: 14px;
  color: var(--grey-800);
  border-bottom: 1px solid rgba(13,13,15,.08);
}
.product-features li::before {
  content: '—';
  position: absolute; left: 0; top: 11px;
  color: var(--amber); font-weight: 600;
}

/* ---------- Quote éditoriale ---------- */
.quote-section {
  background: var(--cream);
  padding: 120px 0;
  text-align: center;
}
.quote {
  max-width: 820px; margin: 0 auto;
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 3.2vw, 2.4rem);
  font-weight: 400; font-style: italic;
  line-height: 1.3; color: var(--black);
  letter-spacing: -0.02em;
}
.quote::before, .quote::after {
  color: var(--amber); font-weight: 600;
}
.quote::before { content: '« '; }
.quote::after { content: ' »'; }
.quote-author {
  margin-top: 32px;
  font-family: var(--font-sans);
  font-size: 13px; font-weight: 500;
  text-transform: uppercase; letter-spacing: 0.18em;
  color: var(--grey-500);
}

/* ---------- CTA éditorial ---------- */
.cta-banner {
  background: var(--black); color: var(--cream);
  padding: 90px 60px; margin: 60px 0;
  text-align: center;
  position: relative; overflow: hidden;
}
.cta-banner::before {
  content: ''; position: absolute; top: -100px; right: -100px;
  width: 400px; height: 400px; border-radius: 50%;
  background: radial-gradient(circle, rgba(200,118,29,.3), transparent 60%);
}
.cta-banner .eyebrow { color: var(--amber); }
.cta-banner h2 { color: var(--white); margin: 20px 0 16px; max-width: 620px; margin-left: auto; margin-right: auto; }
.cta-banner p { color: var(--grey-300); max-width: 560px; margin: 0 auto 36px; }
.cta-banner .btn-primary { background: var(--amber); border-color: var(--amber); color: var(--white); }
.cta-banner .btn-primary:hover { background: var(--white); color: var(--black); border-color: var(--white); }

/* ---------- Form ---------- */
.form-wrap { max-width: 720px; margin: 0 auto; }
.form-row { display: grid; gap: 18px; grid-template-columns: 1fr 1fr; margin-bottom: 18px; }
.form-group { margin-bottom: 18px; }
.form-group label {
  display: block; font-weight: 500; font-size: 13px;
  margin-bottom: 8px; color: var(--ink);
  text-transform: uppercase; letter-spacing: 0.08em;
}
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 14px 16px;
  border: 1px solid var(--grey-200);
  border-radius: var(--radius);
  font-size: 15px;
  font-family: inherit;
  background: var(--white);
  color: var(--ink);
  transition: border-color .15s, box-shadow .15s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: 0; border-color: var(--black);
  box-shadow: 0 0 0 3px rgba(200,118,29,.15);
}
.form-group textarea { min-height: 140px; resize: vertical; }
.form-note { font-size: 13px; color: var(--grey-500); }

/* ---------- Alerts ---------- */
.alert {
  padding: 16px 20px; border-radius: var(--radius);
  margin-bottom: 24px; font-size: 14.5px; border-left: 3px solid;
  background: var(--paper);
}
.alert-success { border-color: #2d6a4f; color: #1b4332; background: #f0f8f3; }
.alert-error   { border-color: #bc4b4b; color: #7d1f1f; background: #fbf1f1; }
.alert-info    { border-color: var(--amber); color: var(--amber-dark); background: var(--amber-bg); }

/* ---------- Pages légales & intérieures ---------- */
.page-hero {
  background: var(--cream);
  padding: 100px 0 70px;
  border-bottom: 1px solid rgba(13,13,15,.1);
}
.page-hero h1 { margin-bottom: 14px; }
.page-hero p { color: var(--grey-500); margin: 0; font-size: 1.05rem; }
.page-hero .eyebrow { margin-bottom: 20px; }

.legal-content {
  max-width: 800px; margin: 0 auto; padding: 70px 0;
}
.legal-content h2 {
  margin-top: 50px; font-size: 1.5rem; color: var(--black);
  padding-bottom: 12px; border-bottom: 1px solid rgba(13,13,15,.12);
}
.legal-content h3 { margin-top: 28px; font-size: 1.15rem; font-family: var(--font-sans); font-weight: 600; }
.legal-content p, .legal-content li { font-size: 15.5px; color: var(--grey-800); line-height: 1.75; }

/* ---------- Produit détail ---------- */
.product-detail { display: grid; grid-template-columns: 1.5fr 1fr; gap: 70px; align-items: start; }
.product-detail-info .tagline-big {
  font-family: var(--font-sans); font-size: 12px;
  letter-spacing: 0.25em; text-transform: uppercase;
  color: var(--amber); font-weight: 700;
  margin-bottom: 18px;
}
.product-detail-info .price-big {
  font-family: var(--font-serif);
  font-size: 3.5rem; font-weight: 500;
  color: var(--black); margin: 30px 0 6px; letter-spacing: -0.03em;
  line-height: 1;
}
.product-detail-info .price-note { color: var(--grey-500); font-size: 13px; margin-bottom: 40px; text-transform: uppercase; letter-spacing: 0.1em; }
.order-card {
  position: sticky; top: 100px;
  padding: 40px 36px;
  background: var(--black); color: var(--cream);
  border-radius: var(--radius);
}
.order-card h3 { color: var(--white); margin-bottom: 8px; }
.order-card .price {
  font-family: var(--font-serif);
  font-size: 2.4rem; font-weight: 500;
  color: var(--amber); margin: 18px 0 8px;
  letter-spacing: -0.02em; line-height: 1;
}
.order-card .price-label { font-size: 12px; color: var(--grey-300); letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 28px; }
.order-card p { color: var(--grey-300); font-size: 14px; margin-bottom: 18px; }
.order-card .btn-primary { background: var(--amber); border-color: var(--amber); color: var(--white); }
.order-card .btn-primary:hover { background: var(--white); color: var(--black); border-color: var(--white); }
.order-card .btn-ghost { border-color: var(--grey-500); color: var(--grey-300); }
.order-card .btn-ghost:hover { background: var(--cream); color: var(--black); border-color: var(--cream); }

/* ---------- Checkout ---------- */
.checkout-wrap { display: grid; grid-template-columns: 1.4fr 1fr; gap: 50px; align-items: start; }
.checkout-summary {
  position: sticky; top: 100px;
  padding: 40px 34px;
  background: var(--paper);
  border: 1px solid rgba(13,13,15,.1);
  border-radius: var(--radius);
}
.summary-row {
  display: flex; justify-content: space-between;
  padding: 14px 0;
  border-bottom: 1px solid rgba(13,13,15,.08);
  font-size: 15px;
}
.summary-row:last-child { border-bottom: 0; }
.summary-total {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 500;
  color: var(--black);
  padding-top: 20px;
  letter-spacing: -0.02em;
}
.summary-total .amount { color: var(--amber); }

/* ---------- À propos ---------- */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: center; }
.about-text p { font-size: 1.05rem; line-height: 1.75; }
.about-image {
  aspect-ratio: 4/5;
  background: linear-gradient(135deg, var(--black) 0%, var(--graphite) 100%);
  border-radius: var(--radius);
  position: relative; overflow: hidden;
}
.about-image::before {
  content: 'GPRF';
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-serif); font-size: 8rem;
  color: var(--amber); opacity: 0.15; font-style: italic;
}
.about-image::after {
  content: ''; position: absolute; inset: 24px;
  border: 1px solid rgba(232,184,122,.2);
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--black); color: var(--grey-300);
  padding: 80px 0 28px; margin-top: 0;
}
.site-footer a { color: var(--grey-300); }
.site-footer a:hover { color: var(--amber); }
.footer-grid {
  display: grid; gap: 50px;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  padding-bottom: 50px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.footer-grid h4 {
  color: var(--amber); font-size: 11px;
  text-transform: uppercase; letter-spacing: 0.22em;
  margin-bottom: 22px; font-weight: 600;
}
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { padding: 6px 0; font-size: 14px; }
.footer-brand {
  display: flex; align-items: baseline; gap: 10px;
  color: var(--cream); font-size: 22px; margin-bottom: 16px;
}
.footer-brand .brand-mark { background: var(--amber); color: var(--black); }
.footer-brand .brand-text { font-family: var(--font-serif); font-weight: 500; }
.footer-tagline {
  font-family: var(--font-serif); font-style: italic;
  color: var(--amber-light); font-size: 15px; margin-bottom: 18px;
}
.footer-address { color: var(--grey-500); font-size: 13px; }
.footer-bottom {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px;
  padding-top: 28px; color: var(--grey-500); font-size: 12px;
}

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .product-detail { grid-template-columns: 1fr; gap: 40px; }
  .order-card { position: static; }
  .checkout-wrap { grid-template-columns: 1fr; }
  .checkout-summary { position: static; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 30px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-meta { display: none; }
}
@media (max-width: 720px) {
  .nav-toggle { display: flex; }
  .brand-sub { display: none; }
  .main-nav {
    display: none; position: absolute; top: 80px; left: 0; right: 0;
    flex-direction: column; gap: 0; background: var(--cream);
    padding: 20px 28px;
    border-bottom: 1px solid rgba(13,13,15,.1);
    box-shadow: var(--shadow);
  }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 14px 0; width: 100%; border-bottom: 1px solid rgba(13,13,15,.06); }
  .main-nav a.btn-primary { margin-top: 12px; border: 0; background: var(--black); border-radius: 999px; text-align: center; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  section { padding: 70px 0; }
  .hero { padding: 70px 0 80px; }
  .cta-banner { padding: 60px 30px; }
  .product-card { padding: 34px 28px; }
  .order-card { padding: 32px 26px; }
}