/* ============================================
   CHIC CHOC CAKE — Luxe Pâtisserie
   Palette: dark + accents dorés/cuivre
   Fonts: Instrument Serif (display) + Plus Jakarta Sans (body)
   Esthétique: glassmorphism, espace négatif généreux
   ============================================ */

/* ---------- Reset & Base ---------- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --color-bg: #0e0c0b;
  --color-bg-soft: #1a1715;
  --color-bg-card: rgba(255, 255, 255, 0.04);
  --color-surface: #221f1b;
  --color-gold: #c9a96e;
  --color-gold-light: #dfc391;
  --color-copper: #b87a4b;
  --color-text: #f0ece6;
  --color-text-muted: #a09889;
  --color-text-dim: #6b6157;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-gold: rgba(201, 169, 110, 0.25);
  --color-glass: rgba(255, 255, 255, 0.03);
  --color-glass-border: rgba(255, 255, 255, 0.06);
  --font-display: 'Instrument Serif', Georgia, serif;
  --font-body: 'Plus Jakarta Sans', system-ui, sans-serif;
  --max-width: 1280px;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  --spacing-2xl: 10rem;
  --radius: 12px;
  --radius-lg: 20px;
  --transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  font-weight: 300;
  letter-spacing: 0.01em;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

ul, ol {
  list-style: none;
}

/* ---------- Typography ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.4rem, 5vw, 4rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.8rem); }
h4 { font-size: clamp(1.1rem, 2vw, 1.4rem); }

p {
  max-width: 70ch;
  margin-bottom: 1em;
}

.text-gold { color: var(--color-gold); }
.text-muted { color: var(--color-text-muted); }
.text-dim { color: var(--color-text-dim); }

/* ---------- Utility ---------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* ---------- Glassmorphism ---------- */
.glass {
  background: var(--color-glass);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius);
}

.glass-card {
  background: var(--color-bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.glass-card:hover {
  border-color: var(--color-border-gold);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3), 0 0 40px rgba(201, 169, 110, 0.05);
}

/* ---------- Decorative Line ---------- */
.gold-line {
  width: 48px;
  height: 1px;
  background: linear-gradient(90deg, var(--color-gold), transparent);
  margin: var(--spacing-sm) 0;
}

.gold-line--center {
  margin: var(--spacing-sm) auto;
}

/* ---------- Header / Navigation ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: var(--spacing-sm) 0;
  transition: background var(--transition), backdrop-filter var(--transition), padding var(--transition);
}

.site-header.scrolled {
  background: rgba(14, 12, 11, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  padding: 0.6rem 0;
}

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

.logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--color-text);
  letter-spacing: 0.05em;
}

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

.nav-links {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
}

.nav-links a {
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  position: relative;
  padding-bottom: 2px;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-gold);
  transition: width var(--transition);
}

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

.nav-links a:hover::after {
  width: 100%;
}

/* Mobile menu */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 1px;
  background: var(--color-text);
  margin: 6px 0;
  transition: transform var(--transition), opacity var(--transition);
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ---------- Hero / Accroche ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: flex-end;
  padding-bottom: var(--spacing-xl);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(14, 12, 11, 0.2) 0%,
    rgba(14, 12, 11, 0.5) 50%,
    rgba(14, 12, 11, 0.95) 85%,
    var(--color-bg) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.hero-label {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: var(--spacing-sm);
}

.hero h1 {
  margin-bottom: var(--spacing-md);
}

.hero p {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  font-weight: 300;
}

/* ---------- Section Spacing ---------- */
.section {
  padding: var(--spacing-xl) 0;
}

.section--large {
  padding: var(--spacing-2xl) 0;
}

.section-header {
  margin-bottom: var(--spacing-lg);
}

.section-header h2 {
  margin-bottom: var(--spacing-xs);
}

.section-label {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 0.75rem;
}

/* ---------- Introduction / About ---------- */
.intro {
  border-top: 1px solid var(--color-border);
}

.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  align-items: start;
}

.intro-grid h2 {
  position: sticky;
  top: 120px;
}

.intro-text p {
  color: var(--color-text-muted);
  font-size: 1.05rem;
}

.intro-text p:first-child::first-letter {
  font-family: var(--font-display);
  font-size: 3.5rem;
  float: left;
  line-height: 0.8;
  margin-right: 0.15em;
  color: var(--color-gold);
}

/* ---------- Featured Article ---------- */
.featured-article {
  border-top: 1px solid var(--color-border);
}

.featured-card {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 0;
  overflow: hidden;
  min-height: 500px;
}

.featured-card .card-image {
  position: relative;
  overflow: hidden;
}

.featured-card .card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.featured-card:hover .card-image img {
  transform: scale(1.03);
}

.featured-card .card-body {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--spacing-lg);
}

.card-number {
  font-family: var(--font-display);
  font-size: 4rem;
  color: var(--color-gold);
  opacity: 0.2;
  line-height: 1;
  margin-bottom: var(--spacing-sm);
}

.card-category {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-copper);
  margin-bottom: var(--spacing-sm);
}

.card-title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.5vw, 2.2rem);
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
  transition: color var(--transition);
}

.card-title a:hover {
  color: var(--color-gold-light);
}

.card-excerpt {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: var(--spacing-md);
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-gold);
  transition: gap var(--transition);
}

.card-link:hover {
  gap: 0.8rem;
}

.card-link svg {
  width: 16px;
  height: 16px;
}

/* ---------- Articles Grid ---------- */
.articles-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
}

.article-card {
  overflow: hidden;
}

.article-card .card-image {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.article-card .card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.article-card:hover .card-image img {
  transform: scale(1.05);
}

.article-card .card-body {
  padding: var(--spacing-md);
}

.article-card .card-title {
  font-size: clamp(1.15rem, 2vw, 1.5rem);
  margin-bottom: 0.5rem;
}

.article-card .card-excerpt {
  font-size: 0.88rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ---------- Section Divider ---------- */
.divider {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-border), transparent);
  margin: var(--spacing-lg) 0;
}

/* ---------- SEO Text Section ---------- */
.seo-section {
  border-top: 1px solid var(--color-border);
}

.seo-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.seo-content h2 {
  margin-bottom: var(--spacing-md);
}

.seo-content p {
  color: var(--color-text-muted);
  font-size: 1.05rem;
  margin: 0 auto var(--spacing-sm);
  max-width: 65ch;
}

/* ---------- FAQ Section ---------- */
.faq-section {
  border-top: 1px solid var(--color-border);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-md) 0;
}

.faq-item summary {
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--color-text);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-sm);
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: '+';
  font-family: var(--font-body);
  font-size: 1.5rem;
  font-weight: 200;
  color: var(--color-gold);
  transition: transform var(--transition);
  flex-shrink: 0;
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-answer {
  padding-top: var(--spacing-sm);
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.8;
  max-width: 65ch;
}

/* ---------- Newsletter CTA ---------- */
.newsletter-section {
  border-top: 1px solid var(--color-border);
}

.newsletter-inner {
  text-align: center;
  padding: var(--spacing-lg);
  max-width: 600px;
  margin: 0 auto;
}

.newsletter-inner h2 {
  margin-bottom: var(--spacing-xs);
}

.newsletter-inner p {
  color: var(--color-text-muted);
  margin: 0 auto var(--spacing-md);
}

.newsletter-form {
  display: flex;
  gap: 0.75rem;
  max-width: 440px;
  margin: 0 auto;
}

.newsletter-form input {
  flex: 1;
  padding: 0.85rem 1.2rem;
  background: var(--color-glass);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 0.9rem;
  outline: none;
  transition: border-color var(--transition);
}

.newsletter-form input::placeholder {
  color: var(--color-text-dim);
}

.newsletter-form input:focus {
  border-color: var(--color-gold);
}

.newsletter-form button {
  padding: 0.85rem 1.8rem;
  background: linear-gradient(135deg, var(--color-gold), var(--color-copper));
  border: none;
  border-radius: var(--radius);
  color: var(--color-bg);
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: opacity var(--transition), transform var(--transition);
  white-space: nowrap;
}

.newsletter-form button:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-bg-soft);
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer-brand p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-top: var(--spacing-sm);
}

.footer-col h4 {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: var(--spacing-sm);
  font-family: var(--font-body);
}

.footer-col ul li {
  margin-bottom: 0.5rem;
}

.footer-col ul a {
  font-size: 0.88rem;
  color: var(--color-text-muted);
}

.footer-col ul a:hover {
  color: var(--color-text);
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--color-text-dim);
}

/* ---------- Article Page (for future pages) ---------- */
.article-header {
  padding-top: 8rem;
  padding-bottom: var(--spacing-lg);
  text-align: center;
  border-bottom: 1px solid var(--color-border);
}

.article-header .card-category {
  margin-bottom: var(--spacing-sm);
}

.article-header h1 {
  max-width: 800px;
  margin: 0 auto var(--spacing-sm);
}

.article-header .article-meta {
  color: var(--color-text-dim);
  font-size: 0.85rem;
}

.article-cover {
  max-width: 960px;
  margin: var(--spacing-lg) auto;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.article-cover img {
  width: 100%;
  aspect-ratio: 21 / 9;
  object-fit: cover;
}

.article-body {
  max-width: 720px;
  margin: 0 auto;
  padding: var(--spacing-lg) var(--spacing-md);
}

.article-body h2 {
  margin: var(--spacing-lg) 0 var(--spacing-sm);
}

.article-body h3 {
  margin: var(--spacing-md) 0 var(--spacing-sm);
}

.article-body p {
  color: var(--color-text-muted);
  font-size: 1.05rem;
}

.article-body ul,
.article-body ol {
  margin: var(--spacing-sm) 0 var(--spacing-sm) var(--spacing-md);
  color: var(--color-text-muted);
}

.article-body li {
  margin-bottom: 0.5rem;
  list-style: disc;
}

.article-body ol li {
  list-style: decimal;
}

.article-body blockquote {
  border-left: 2px solid var(--color-gold);
  padding-left: var(--spacing-md);
  margin: var(--spacing-md) 0;
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--color-text);
  line-height: 1.5;
}

.article-body a {
  color: var(--color-gold);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.article-body a:hover {
  color: var(--color-gold-light);
}

/* Breadcrumb */
.breadcrumb {
  padding: 6rem 0 var(--spacing-sm);
  font-size: 0.8rem;
  color: var(--color-text-dim);
}

.breadcrumb a {
  color: var(--color-text-muted);
}

.breadcrumb a:hover {
  color: var(--color-gold);
}

.breadcrumb span {
  margin: 0 0.5rem;
  color: var(--color-text-dim);
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .intro-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  .intro-grid h2 {
    position: static;
  }

  .featured-card {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .featured-card .card-image {
    aspect-ratio: 16 / 9;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
  }
}

@media (max-width: 768px) {
  :root {
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --spacing-2xl: 6rem;
  }

  .nav-links {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(14, 12, 11, 0.97);
    backdrop-filter: blur(30px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    z-index: 99;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    font-size: 1.1rem;
  }

  .menu-toggle {
    display: block;
    z-index: 101;
  }

  .articles-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--spacing-sm);
    text-align: center;
  }

  .newsletter-form {
    flex-direction: column;
  }

  .featured-card .card-body {
    padding: var(--spacing-md);
  }
}

@media (max-width: 480px) {
  :root {
    --spacing-md: 1.25rem;
  }
}