/* ============================================================
   PierreVive – Maçonnerie en Pierre Naturelle
   Feuille de style principale
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,600;1,300;1,400&family=Crimson+Pro:wght@300;400;500&family=Josefin+Sans:wght@300;400;500&display=swap');

/* ── VARIABLES ── */
:root {
  --stone-50:  #faf8f4;
  --stone-100: #f3ede2;
  --stone-200: #e6d9c5;
  --stone-300: #d4be9e;
  --stone-400: #b89a72;
  --stone-500: #9a7a55;
  --stone-600: #7d6040;
  --stone-700: #5e4730;
  --stone-800: #3d2e1e;
  --stone-900: #1e1610;
  --moss:      #4a5e3a;
  --moss-light:#6b7f5a;
  --terracotta:#c0622a;
  --terracotta-light:#d4845a;
  --cream:     #f7f3ec;
  --ink:       #1a1510;

  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body:    'Crimson Pro', Georgia, serif;
  --font-ui:      'Josefin Sans', sans-serif;

  --transition: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* ── RESET ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--cream);
  color: var(--ink);
  font-size: 18px;
  line-height: 1.7;
  overflow-x: hidden;
}

/* ── HEADER ── */
header {
  position: sticky;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(247, 243, 236, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--stone-200);
  padding: 0 40px;
}

.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--stone-800);
  text-decoration: none;
  letter-spacing: 0.02em;
}
.logo span { color: var(--terracotta); }

nav { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }

nav a {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--stone-600);
  text-decoration: none;
  padding: 6px 12px;
  border-radius: 2px;
  transition: var(--transition);
}
nav a:hover, nav a.active {
  color: var(--terracotta);
  background: rgba(192, 98, 42, 0.07);
}
.nav-cta {
  background: var(--stone-800) !important;
  color: var(--cream) !important;
  padding: 8px 18px !important;
}
.nav-cta:hover { background: var(--terracotta) !important; }

/* ── HAMBURGER ── */
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; }
.hamburger span { width: 26px; height: 1.5px; background: var(--stone-700); transition: var(--transition); }

/* ── NAV MOBILE ── */
.nav-mobile {
  display: none;
  position: fixed;
  top: 70px; left: 0; right: 0;
  background: var(--cream);
  border-bottom: 1px solid var(--stone-200);
  padding: 20px;
  z-index: 99;
  flex-direction: column;
  gap: 4px;
}
.nav-mobile.open { display: flex; }
.nav-mobile a {
  font-family: var(--font-ui);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--stone-600);
  text-decoration: none;
  padding: 12px 16px;
  border-bottom: 1px solid var(--stone-100);
  transition: color 0.2s;
}
.nav-mobile a:last-child { border-bottom: none; }
.nav-mobile a:hover { color: var(--terracotta); }

/* ── HERO (accueil) ── */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  position: relative;
  overflow: hidden;
}
.hero-left {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 80px 60px 80px 80px;
  position: relative;
  z-index: 2;
}
.hero-eyebrow {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--terracotta);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.hero-eyebrow::before { content: ''; width: 32px; height: 1px; background: var(--terracotta); }

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(3rem, 5vw, 5.5rem);
  font-weight: 300;
  line-height: 1.05;
  color: var(--stone-900);
  margin-bottom: 28px;
}
.hero h1 em { font-style: italic; color: var(--terracotta); }

.hero-lead { font-size: 1.15rem; color: var(--stone-600); max-width: 480px; line-height: 1.8; margin-bottom: 40px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

.hero-right { position: relative; overflow: hidden; }
.hero-stone-texture {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(180,155,115,0.15) 0%, transparent 50%);
}
.hero-visual {
  position: absolute; inset: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr 1fr;
  gap: 4px;
  padding: 70px 40px 40px 20px;
}
.stone-tile { border-radius: 1px; position: relative; overflow: hidden; transition: transform 0.6s ease; }
.stone-tile:hover { transform: scale(1.02); }
.stone-tile-1 { background: linear-gradient(135deg, #c4a882, #9a7a55, #7d6040); grid-row: 1 / 3; }
.stone-tile-2 { background: linear-gradient(160deg, #d4b896, #b89a72, #8a6a48); }
.stone-tile-3 { background: linear-gradient(140deg, #7d6b52, #5e4730, #3d2e1e); }
.stone-tile-4 { background: linear-gradient(115deg, #e6d9c5, #c4a882, #9a7a55); grid-column: 1 / 3; }
.stone-tile-5 { background: linear-gradient(150deg, #b8c4a8, #8a9a7a, #6b7f5a); }
.tile-label { position: absolute; bottom: 14px; left: 14px; font-family: var(--font-ui); font-size: 0.6rem; letter-spacing: 0.18em; text-transform: uppercase; color: rgba(255,255,255,0.7); z-index: 2; }
.hero-stats { position: absolute; bottom: 40px; left: 80px; display: flex; gap: 40px; }
.stat-number { font-family: var(--font-display); font-size: 2.2rem; font-weight: 300; color: var(--stone-800); line-height: 1; }
.stat-label { font-family: var(--font-ui); font-size: 0.65rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--stone-400); margin-top: 4px; }

/* ── BUTTONS ── */
.btn-primary {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  background: var(--stone-800);
  color: var(--cream);
  padding: 16px 36px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  display: inline-block;
}
.btn-primary:hover { background: var(--terracotta); }
.btn-secondary {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  background: transparent;
  color: var(--stone-700);
  padding: 16px 36px;
  border: 1px solid var(--stone-300);
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  display: inline-block;
}
.btn-secondary:hover { border-color: var(--stone-600); color: var(--stone-900); }

/* ── SECTIONS ── */
section { padding: 90px 40px; }
.container { max-width: 1280px; margin: 0 auto; }

.section-eyebrow {
  font-family: var(--font-ui);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--terracotta);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.section-eyebrow::after { content: ''; flex: 1; height: 1px; background: var(--stone-200); max-width: 80px; }

h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.5vw, 3.2rem);
  font-weight: 300;
  line-height: 1.15;
  color: var(--stone-900);
  margin-bottom: 20px;
}
h3 { font-family: var(--font-display); font-size: 1.6rem; font-weight: 400; color: var(--stone-800); margin-bottom: 12px; }
h4 { font-family: var(--font-ui); font-size: 0.78rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--stone-600); margin-bottom: 10px; }
p { color: var(--stone-600); line-height: 1.85; margin-bottom: 16px; }
p:last-child { margin-bottom: 0; }

/* ── USAGES GRID ── */
.usages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  margin-top: 60px;
}
.usage-card { position: relative; overflow: hidden; aspect-ratio: 4/3; background: var(--stone-300); }
.usage-card-bg { position: absolute; inset: 0; transition: transform 0.7s ease; }
.usage-card:hover .usage-card-bg { transform: scale(1.06); }
.uc-terrasse .usage-card-bg { background: linear-gradient(160deg, #c4a882 0%, #8a6848 40%, #5e4730 100%); }
.uc-muret    .usage-card-bg { background: linear-gradient(140deg, #9aaa8a 0%, #6b7a5a 40%, #3a4a2e 100%); }
.uc-jardin   .usage-card-bg { background: linear-gradient(145deg, #b8d4b0 0%, #7a9a70 40%, #4a6a3a 100%); }
.uc-interieur .usage-card-bg { background: linear-gradient(155deg, #e0d4c0 0%, #b4a080 40%, #7a6040 100%); }
.uc-allee    .usage-card-bg { background: linear-gradient(135deg, #d4c4a4 0%, #a48a60 40%, #6a5030 100%); }
.uc-piscine  .usage-card-bg { background: linear-gradient(150deg, #a0c4c4 0%, #608080 40%, #304a4a 100%); }
.usage-card::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to top, rgba(20,14,8,0.75) 0%, transparent 55%); }
.usage-card-content { position: absolute; bottom: 0; left: 0; right: 0; padding: 28px 28px 24px; z-index: 2; transform: translateY(4px); transition: transform 0.4s ease; }
.usage-card:hover .usage-card-content { transform: translateY(0); }
.usage-card-tag { font-family: var(--font-ui); font-size: 0.6rem; letter-spacing: 0.18em; text-transform: uppercase; color: rgba(255,255,255,0.55); margin-bottom: 6px; }
.usage-card h3 { font-size: 1.55rem; color: white; margin-bottom: 6px; font-weight: 400; }
.usage-card p { font-size: 0.9rem; color: rgba(255,255,255,0.65); line-height: 1.5; margin-bottom: 14px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.card-link { font-family: var(--font-ui); font-size: 0.65rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--terracotta-light); display: flex; align-items: center; gap: 8px; opacity: 0; transition: opacity 0.3s ease; }
.usage-card:hover .card-link { opacity: 1; }
.card-link::after { content: '→'; font-size: 0.8rem; }

/* ── INTRO STRIP ── */
.intro-strip { background: var(--stone-800); color: var(--cream); padding: 70px 80px; }
.intro-strip-inner { max-width: 1280px; margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr; gap: 80px; align-items: center; }
.intro-strip h2 { color: var(--cream); }
.intro-strip p { color: rgba(247,243,236,0.7); }
.intro-strip .section-eyebrow { color: var(--terracotta-light); }
.intro-strip .section-eyebrow::after { background: rgba(247,243,236,0.15); }
.strip-features { display: flex; flex-direction: column; gap: 20px; }
.strip-feature { display: flex; gap: 16px; align-items: flex-start; }
.strip-feature-icon { width: 36px; height: 36px; border: 1px solid rgba(247,243,236,0.2); flex-shrink: 0; display: flex; align-items: center; justify-content: center; font-size: 1rem; }
.strip-feature-text { font-size: 0.9rem; color: rgba(247,243,236,0.65); line-height: 1.6; }
.strip-feature-title { font-family: var(--font-ui); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--cream); margin-bottom: 3px; }

/* ── TYPES DE PIERRE ── */
.types-section { background: var(--stone-50); }
.types-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 50px; }
.type-card { padding: 30px 24px; border: 1px solid var(--stone-200); background: white; transition: var(--transition); }
.type-card:hover { border-color: var(--stone-400); transform: translateY(-4px); box-shadow: 0 20px 40px rgba(0,0,0,0.07); }
.type-swatch { width: 100%; height: 80px; margin-bottom: 20px; border-radius: 1px; }
.ts-calcaire { background: linear-gradient(135deg, #e8d8bc, #c4a882, #a08060); }
.ts-granit   { background: linear-gradient(135deg, #888880, #606058, #404040); }
.ts-schiste  { background: linear-gradient(135deg, #8080a0, #606080, #404060); }
.ts-gres     { background: linear-gradient(135deg, #d4b880, #b09060, #8a7050); }
.type-card h3 { font-size: 1.25rem; margin-bottom: 8px; }
.type-card p  { font-size: 0.9rem; color: var(--stone-500); line-height: 1.6; }

/* ── PAGE HERO (pages internes) ── */
.page-hero {
  min-height: 380px;
  display: flex;
  align-items: flex-end;
  position: relative;
  overflow: hidden;
}
.page-hero-bg  { position: absolute; inset: 0; }
.ph-terrasse   { background: linear-gradient(160deg, #c4a882 0%, #8a6848 40%, #5e4730 100%); }
.ph-muret      { background: linear-gradient(140deg, #9aaa8a 0%, #6b7a5a 40%, #3a4a2e 100%); }
.ph-jardin     { background: linear-gradient(145deg, #b8d4b0 0%, #7a9a70 40%, #4a6a3a 100%); }
.ph-interieur  { background: linear-gradient(155deg, #e0d4c0 0%, #b4a080 40%, #7a6040 100%); }
.ph-allee      { background: linear-gradient(135deg, #d4c4a4 0%, #a48a60 40%, #6a5030 100%); }
.ph-piscine    { background: linear-gradient(150deg, #a0c4c4 0%, #608080 40%, #304a4a 100%); }
.ph-guides     { background: linear-gradient(140deg, #b0b8a0 0%, #788060 40%, #405030 100%); }
.page-hero-overlay { position: absolute; inset: 0; background: linear-gradient(to top, rgba(20,14,8,0.65) 0%, rgba(20,14,8,0.1) 100%); }
.page-hero-content { position: relative; z-index: 2; padding: 50px 80px; max-width: 1280px; width: 100%; margin: 0 auto; }
.page-hero-content .section-eyebrow { color: rgba(255,255,255,0.6); }
.page-hero-content .section-eyebrow::after { background: rgba(255,255,255,0.2); }
.page-hero-content h1 { font-family: var(--font-display); font-size: clamp(2.5rem, 4vw, 4rem); font-weight: 300; color: white; line-height: 1.1; max-width: 700px; }
.page-hero-content .hero-lead { color: rgba(255,255,255,0.7); max-width: 600px; margin-top: 16px; }

/* ── BREADCRUMB ── */
.breadcrumb {
  background: var(--stone-100);
  padding: 14px 80px;
  font-family: var(--font-ui);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--stone-400);
}
.breadcrumb a { color: var(--stone-500); text-decoration: none; transition: color 0.2s; }
.breadcrumb a:hover { color: var(--terracotta); }
.breadcrumb span { margin: 0 8px; }

/* ── CONTENT LAYOUT ── */
.content-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 60px;
  max-width: 1280px;
  margin: 0 auto;
  padding: 70px 40px;
}
.content-main article { max-width: 760px; }
article h2 { font-size: 2rem; margin-top: 50px; margin-bottom: 16px; padding-top: 50px; border-top: 1px solid var(--stone-200); }
article h2:first-child { margin-top: 0; padding-top: 0; border-top: none; }
article h3 { font-size: 1.35rem; margin-top: 30px; margin-bottom: 10px; }
article ul, article ol { padding-left: 24px; margin-bottom: 20px; }
article li { font-family: var(--font-body); color: var(--stone-600); line-height: 1.75; margin-bottom: 6px; font-size: 1rem; }
article a { color: var(--terracotta); text-decoration: underline; }
article a:hover { color: var(--stone-800); }

/* ── CALLOUT BOXES ── */
.callout { padding: 24px 28px; border-left: 3px solid var(--terracotta); background: rgba(192,98,42,0.05); margin: 30px 0; border-radius: 0 4px 4px 0; }
.callout-info { border-left-color: var(--moss); background: rgba(74,94,58,0.05); }
.callout-title { font-family: var(--font-ui); font-size: 0.7rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--terracotta); margin-bottom: 8px; }
.callout-info .callout-title { color: var(--moss); }
.callout p { font-size: 0.95rem; color: var(--stone-700); margin-bottom: 0; }

/* ── DATA TABLE ── */
.data-table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: 0.92rem; overflow-x: auto; display: block; }
.data-table th { font-family: var(--font-ui); font-size: 0.65rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--stone-500); text-align: left; padding: 10px 16px; border-bottom: 2px solid var(--stone-200); }
.data-table td { padding: 12px 16px; border-bottom: 1px solid var(--stone-100); color: var(--stone-700); vertical-align: top; }
.data-table tr:hover td { background: var(--stone-50); }

/* ── SIDEBAR ── */
.sidebar { position: sticky; top: 90px; align-self: flex-start; }
.sidebar-widget { background: white; border: 1px solid var(--stone-200); padding: 24px; margin-bottom: 24px; }
.sidebar-widget h4 { margin-bottom: 16px; }
.sidebar-links { list-style: none; }
.sidebar-links li { border-bottom: 1px solid var(--stone-100); }
.sidebar-links li:last-child { border-bottom: none; }
.sidebar-links a { display: flex; align-items: center; justify-content: space-between; padding: 10px 0; font-family: var(--font-body); font-size: 0.95rem; color: var(--stone-600); text-decoration: none; transition: color 0.2s; }
.sidebar-links a:hover { color: var(--terracotta); }
.sidebar-links a::after { content: '→'; font-size: 0.8rem; opacity: 0.5; }
.sidebar-dark { background: var(--stone-800) !important; border-color: var(--stone-800) !important; }
.sidebar-dark h4 { color: var(--cream) !important; }
.sidebar-dark .sidebar-links a { color: rgba(247,243,236,0.6); }
.sidebar-dark .sidebar-links a:hover { color: var(--terracotta-light); }
.toc-list { list-style: none; }
.toc-list a { font-size: 0.88rem; color: var(--stone-500); text-decoration: none; transition: color 0.2s; display: flex; align-items: center; gap: 8px; padding: 4px 0; }
.toc-list a::before { content: ''; width: 16px; height: 1px; background: var(--stone-300); flex-shrink: 0; }
.toc-list a:hover { color: var(--terracotta); }

/* ── GUIDES GRID ── */
.guides-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 50px; }
.guide-card { border: 1px solid var(--stone-200); overflow: hidden; transition: var(--transition); }
.guide-card:hover { border-color: var(--stone-400); transform: translateY(-4px); box-shadow: 0 20px 40px rgba(0,0,0,0.07); }
.guide-card-top { height: 120px; position: relative; overflow: hidden; }
.gc-1 { background: linear-gradient(135deg, #c4a882, #8a6848); }
.gc-2 { background: linear-gradient(135deg, #9aaa8a, #4a6a3a); }
.gc-3 { background: linear-gradient(135deg, #d4c4a4, #6a5030); }
.gc-4 { background: linear-gradient(135deg, #e0d4c0, #7a6040); }
.gc-5 { background: linear-gradient(135deg, #a0c4c4, #304a4a); }
.gc-6 { background: linear-gradient(135deg, #b0b8a0, #405030); }
.guide-card-tag { position: absolute; top: 14px; left: 14px; font-family: var(--font-ui); font-size: 0.58rem; letter-spacing: 0.18em; text-transform: uppercase; color: rgba(255,255,255,0.75); background: rgba(0,0,0,0.2); padding: 4px 10px; }
.guide-card-body { padding: 22px; }
.guide-card-body h3 { font-size: 1.15rem; margin-bottom: 8px; }
.guide-card-body p { font-size: 0.88rem; color: var(--stone-500); line-height: 1.6; }
.guide-card-footer { padding: 14px 22px; border-top: 1px solid var(--stone-100); font-family: var(--font-ui); font-size: 0.62rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--stone-400); display: flex; justify-content: space-between; align-items: center; }

/* ── STEPS ── */
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2px; margin: 40px 0; }
.step-card { padding: 30px 24px; background: var(--stone-50); }
.step-number { font-family: var(--font-display); font-size: 3.5rem; font-weight: 300; color: var(--stone-200); line-height: 1; margin-bottom: 12px; }
.step-card h4 { font-size: 0.8rem; color: var(--stone-700); margin-bottom: 8px; }
.step-card p { font-size: 0.88rem; line-height: 1.6; }

/* ── RELATED ── */
.related-section { background: var(--stone-50); padding: 70px 40px; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 40px; }
.related-card { background: white; border: 1px solid var(--stone-200); overflow: hidden; transition: var(--transition); }
.related-card:hover { transform: translateY(-3px); box-shadow: 0 12px 30px rgba(0,0,0,0.07); }
.related-card-top { height: 100px; }
.related-card-body { padding: 20px; }
.related-card-body h3 { font-size: 1.1rem; margin-bottom: 6px; }
.related-card-body p { font-size: 0.85rem; color: var(--stone-500); }

/* ── FAQ ── */
.faq-list { margin-top: 30px; }
.faq-item { border-bottom: 1px solid var(--stone-200); }
.faq-question { padding: 20px 0; cursor: pointer; display: flex; align-items: center; justify-content: space-between; font-family: var(--font-display); font-size: 1.15rem; color: var(--stone-800); transition: color 0.2s; }
.faq-question:hover { color: var(--terracotta); }
.faq-icon { width: 24px; height: 24px; flex-shrink: 0; position: relative; }
.faq-icon::before, .faq-icon::after { content: ''; position: absolute; background: var(--stone-400); transition: transform 0.3s ease, opacity 0.3s ease; }
.faq-icon::before { width: 12px; height: 1.5px; top: 50%; left: 50%; transform: translate(-50%, -50%); }
.faq-icon::after  { width: 1.5px; height: 12px; top: 50%; left: 50%; transform: translate(-50%, -50%); }
.faq-item.open .faq-icon::after { transform: translate(-50%, -50%) rotate(90deg); opacity: 0; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; }
.faq-item.open .faq-answer { max-height: 500px; }
.faq-answer-inner { padding: 0 0 24px; font-size: 0.95rem; color: var(--stone-600); line-height: 1.8; }

/* ── FOOTER ── */
footer { background: var(--stone-900); color: rgba(247,243,236,0.6); padding: 70px 80px 40px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 50px; max-width: 1280px; margin: 0 auto; padding-bottom: 50px; border-bottom: 1px solid rgba(247,243,236,0.1); }
.footer-brand .logo { font-size: 1.3rem; color: var(--cream); }
.footer-brand p { font-size: 0.88rem; line-height: 1.7; margin-top: 14px; }
.footer-col h4 { font-family: var(--font-ui); font-size: 0.65rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--cream); margin-bottom: 18px; }
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { font-size: 0.9rem; color: rgba(247,243,236,0.55); text-decoration: none; transition: color 0.2s; }
.footer-links a:hover { color: var(--terracotta-light); }
.footer-bottom { max-width: 1280px; margin: 0 auto; padding-top: 30px; display: flex; justify-content: space-between; align-items: center; font-family: var(--font-ui); font-size: 0.65rem; letter-spacing: 0.08em; text-transform: uppercase; }

/* ── TEXTURE ── */
.texture-overlay {
  position: absolute; inset: 0; pointer-events: none; opacity: 0.4;
  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");
}

/* ── RESPONSIVE ── */
@media (max-width: 1100px) {
  .usages-grid { grid-template-columns: repeat(2, 1fr); }
  .types-grid  { grid-template-columns: repeat(2, 1fr); }
  .content-layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  header { padding: 0 20px; }
  nav { display: none; }
  .hamburger { display: flex; }
  .hero { grid-template-columns: 1fr; min-height: auto; }
  .hero-right { height: 320px; }
  .hero-left  { padding: 60px 24px 40px; }
  .hero-stats { left: 24px; gap: 24px; bottom: 20px; }
  section { padding: 60px 20px; }
  .intro-strip { padding: 50px 24px; }
  .intro-strip-inner { grid-template-columns: 1fr; gap: 40px; }
  .usages-grid  { grid-template-columns: 1fr; }
  .guides-grid  { grid-template-columns: 1fr; }
  .steps-grid   { grid-template-columns: 1fr 1fr; }
  .related-grid { grid-template-columns: 1fr; }
  .breadcrumb   { padding: 12px 24px; }
  .page-hero-content { padding: 40px 24px; }
  .content-layout { padding: 40px 20px; }
  .footer-grid  { grid-template-columns: 1fr; gap: 30px; }
  footer { padding: 50px 24px 30px; }
  .related-section { padding: 50px 20px; }
}