/* ============================================
   PARSA GROUP CO. - IMPROVED DESIGN SYSTEM
   Modern, professional industrial aesthetic
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;1,9..40,400&family=Outfit:wght@400;500;600;700;800&display=swap');

:root {
  /* Industrial palette - deep & trustworthy */
  --color-primary: #0ea5e9;
  --color-primary-dark: #0284c7;
  --color-primary-light: #38bdf8;
  --color-accent: #f59e0b;
  --color-accent-soft: #fbbf24;
  
  --color-bg: #fafbfc;
  --color-bg-elevated: #ffffff;
  --color-bg-muted: #f1f5f9;
  --color-bg-dark: #0f172a;
  --color-bg-dark-soft: #1e293b;
  
  --color-text: #0f172a;
  --color-text-secondary: #475569;
  --color-text-muted: #64748b;
  --color-text-inverse: #ffffff;
  
  --color-border: #e2e8f0;
  --color-border-strong: #cbd5e1;
  
  /* Typography */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'DM Sans', -apple-system, sans-serif;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  
  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 12px 40px rgba(15, 23, 42, 0.12);
  --shadow-glow: 0 0 40px rgba(14, 165, 233, 0.2);
  
  /* Transitions */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --transition-fast: 0.15s var(--ease-out);
  --transition-base: 0.25s var(--ease-out);
  --transition-slow: 0.4s var(--ease-out);
  
  /* Layout */
  --container-max: 1200px;
  --header-height: 72px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--color-primary-dark); }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  color: var(--color-text);
}

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

/* ========== HEADER ========== */
.main-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition-base);
}

.main-header.scrolled { box-shadow: var(--shadow-md); }

.main-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo img { height: 42px; width: auto; }

.main-nav { display: flex; align-items: center; gap: var(--space-xl); }

.nav-list {
  display: flex;
  list-style: none;
  gap: var(--space-sm);
}

.nav-list a {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-md);
  font-weight: 500;
  color: var(--color-text-secondary);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.nav-list a:hover, .nav-list a.active { color: var(--color-primary); background: rgba(14, 165, 233, 0.08); }

.nav-list a i { opacity: 0.7; font-size: 0.9em; }

/* Dropdown */
.dropdown { position: relative; }

.mega-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 280px;
  padding: var(--space-md);
  background: var(--color-bg-elevated);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--transition-base);
  z-index: 50;
}

.dropdown:hover .mega-menu { opacity: 1; visibility: visible; transform: translateY(4px); }

.mega-column { margin-bottom: var(--space-sm); }
.mega-column:last-child { margin-bottom: 0; }
.mega-column h4 {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
  display: flex; align-items: center; gap: var(--space-xs);
}
.mega-column a {
  display: block;
  padding: var(--space-xs) 0;
  font-size: 0.95rem;
  color: var(--color-text);
}
.mega-column a:hover { color: var(--color-primary); }

/* Lang Switcher - Compact */
.header-lang-switcher { position: relative; }

.lang-switcher-toggle {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px 8px;
  min-width: 40px;
  height: 36px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.lang-switcher-toggle:hover {
  background: var(--color-bg-muted);
  border-color: var(--color-border-strong);
}
.lang-switcher-toggle img {
  width: 20px;
  height: 14px;
  object-fit: cover;
  border-radius: 2px;
}
.lang-switcher-toggle .chevron {
  font-size: 0.5rem;
  color: var(--color-text-muted);
  transition: transform var(--transition-fast);
}
.header-lang-switcher.active .chevron { transform: rotate(180deg); }

.lang-dropdown-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 140px;
  max-height: 280px;
  overflow-y: auto;
  padding: 6px;
  background: var(--color-bg-elevated);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: all var(--transition-base);
  z-index: 60;
}

.header-lang-switcher.active .lang-dropdown-menu { opacity: 1; visibility: visible; transform: translateY(0); }

.lang-menu-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 8px 10px;
  background: none;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  cursor: pointer;
  transition: background var(--transition-fast);
  text-align: left;
}
.lang-menu-item:hover { background: var(--color-bg-muted); }
.lang-menu-item-flag { width: 20px; height: 14px; object-fit: cover; border-radius: 2px; flex-shrink: 0; }
.lang-menu-item-info { flex: 1; min-width: 0; }
.lang-menu-item-name { font-weight: 500; font-size: 0.85rem; }
.lang-menu-item-native { font-size: 0.75rem; color: var(--color-text-muted); display: none; }
.lang-menu-item-checkmark { color: var(--color-primary); font-size: 0.75rem; opacity: 0; flex-shrink: 0; }
.lang-menu-item.active .lang-menu-item-checkmark { opacity: 1; }
.lang-menu-divider { height: 1px; background: var(--color-border); margin: 4px 0; }

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px;
}
.mobile-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  border-radius: var(--radius-full);
  transition: var(--transition-fast);
}
.mobile-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.mobile-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile Nav */
.mobile-lang-switcher { display: none; }

/* ========== HERO ========== */
.hero {
  position: relative;
  padding: clamp(3rem, 8vw, 5rem) 0;
  background: linear-gradient(160deg, #0c1929 0%, #132f4c 40%, #1a3a5c 100%);
  color: var(--color-text-inverse);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -15%;
  width: 60%;
  height: 140%;
  background: radial-gradient(ellipse, rgba(14, 165, 233, 0.12) 0%, transparent 60%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -20%;
  left: -10%;
  width: 40%;
  height: 60%;
  background: radial-gradient(ellipse, rgba(14, 165, 233, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content { position: relative; z-index: 1; }

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

.hero-title {
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: var(--space-lg);
  letter-spacing: -0.02em;
  color: #fff;
}

.hero-title .title-line { display: block; }

.hero-subtitle {
  font-size: 1.1rem;
  line-height: 1.65;
  opacity: 0.92;
  margin-bottom: var(--space-2xl);
  max-width: 440px;
}

.hero-cta { display: flex; gap: var(--space-md); flex-wrap: wrap; }

.hero-image-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-product-img {
  max-width: 400px;
  filter: drop-shadow(0 24px 48px rgba(0, 0, 0, 0.3));
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.hero-glow {
  position: absolute;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(14, 165, 233, 0.3) 0%, transparent 70%);
  border-radius: 50%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-primary {
  background: var(--color-primary);
  color: white;
  box-shadow: 0 4px 14px rgba(14, 165, 233, 0.4);
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(14, 165, 233, 0.45);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.12);
  color: white;
  border: 2px solid rgba(255, 255, 255, 0.4);
}
.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.6);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}
.btn-outline:hover { background: rgba(14, 165, 233, 0.08); }
.btn-sm { padding: var(--space-sm) var(--space-md); font-size: 0.9rem; }

/* ========== SECTIONS ========== */

/* Features */
.features { padding: clamp(3rem, 6vw, 4.5rem) 0; }

/* Section labels (eyebrow) and leads for standard B2B hierarchy */
.section-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
}
.section-label.center { text-align: center; }

.section-lead {
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--color-text-secondary);
  max-width: 640px;
  margin-bottom: var(--space-2xl);
}
.section-title.center + .section-lead,
.edu-section .section-title.center { margin-left: auto; margin-right: auto; }
.edu-section .section-lead { margin-left: auto; margin-right: auto; text-align: center; }

.section-title {
  font-size: clamp(1.4rem, 2.5vw, 1.85rem);
  font-weight: 600;
  margin-bottom: var(--space-lg);
  color: var(--color-text);
}
.section-title:not(.center) + .section-lead { margin-top: -0.5rem; }
.features .section-title,
.product-showcase .section-title { margin-bottom: var(--space-sm); }
.features .section-lead,
.product-showcase .section-lead { margin-bottom: var(--space-2xl); }
.product-showcase .section-label,
.product-showcase .section-title,
.product-showcase .section-lead { text-align: center; }
.product-showcase .section-lead { margin-left: auto; margin-right: auto; }

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

.feature-card {
  padding: var(--space-xl);
  background: var(--color-bg-elevated);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
}
.feature-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.feature-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.12) 0%, rgba(14, 165, 233, 0.06) 100%);
  color: var(--color-primary);
  border-radius: var(--radius-md);
  font-size: 1.2rem;
  margin-bottom: var(--space-lg);
}

.feature-title { font-size: 1.1rem; font-weight: 600; margin-bottom: var(--space-sm); }
.feature-description { font-size: 0.925rem; color: var(--color-text-secondary); line-height: 1.55; flex: 1; }

/* Product Showcase - Cards */
.product-showcase {
  padding: clamp(3rem, 6vw, 4.5rem) 0;
  background: linear-gradient(180deg, var(--color-bg-muted) 0%, var(--color-bg) 100%);
}

.product-cards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
}

.product-card {
  background: var(--color-bg-elevated);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  height: 100%;
  display: flex;
  flex-direction: column;
}
.product-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-6px);
}

.product-card .card-image {
  aspect-ratio: 4/3;
  overflow: hidden;
  background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
  position: relative;
}
.product-card .card-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: var(--space-xl);
  transition: transform var(--transition-slow);
}
.product-card:hover .card-image img { transform: scale(1.08); }

.product-badge {
  position: absolute;
  top: var(--space-md);
  left: var(--space-md);
  padding: 4px 12px;
  background: var(--color-primary);
  color: white;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-radius: var(--radius-full);
}

.product-card .card-content {
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  flex: 1;
}

.product-card .product-title { font-size: 1.125rem; font-weight: 600; margin-bottom: var(--space-sm); line-height: 1.3; }
.product-card .product-specs {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
}
.product-card .product-specs i { margin-right: 4px; color: var(--color-primary); font-size: 0.8em; }
.product-card .product-desc {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-lg);
  line-height: 1.55;
  flex: 1;
}

.card-actions { display: flex; gap: var(--space-sm); flex-wrap: wrap; }
.card-actions .btn { padding: var(--space-sm) var(--space-md); font-size: 0.85rem; }
.card-actions .btn-primary { flex: 1; min-width: 80px; }
.card-actions .btn-catalog { flex-shrink: 0; }

/* Educational Content */
.educational-content {
  padding: var(--space-4xl) 0;
  background: var(--color-bg-elevated);
  border-top: 1px solid var(--color-border);
}

.content-section { margin-bottom: var(--space-4xl); }
.content-section:last-child { margin-bottom: 0; }

.content-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: start;
}

.content-section-intro .content-text { max-width: 52ch; }
.content-lead,
.content-body {
  margin-bottom: var(--space-lg);
  color: var(--color-text-secondary);
  line-height: 1.7;
  font-size: 1rem;
}
.content-lead { font-size: 1.025rem; }
.content-text p { margin-bottom: var(--space-md); color: var(--color-text-secondary); line-height: 1.7; }
.subsection-title { font-size: 1.2rem; font-weight: 600; margin-top: var(--space-2xl); margin-bottom: var(--space-md); color: var(--color-text); }

.content-image-wrapper {
  position: sticky;
  top: calc(var(--header-height) + var(--space-xl));
}
.content-image { border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); }

/* Standard educational sections (Why Use, Benefits, Applications, Materials) */
.edu-section { padding: var(--space-2xl) 0; }
.edu-section .section-label { margin-bottom: var(--space-sm); }
.edu-section .section-title { margin-bottom: var(--space-md); }

/* ---- Advantages: clean two-column list with checkmarks ---- */
.advantages-section .advantages-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm) var(--space-2xl);
  max-width: 720px;
  margin: 0 auto;
  padding: 0;
}

.advantage-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}
.advantages-section .advantages-list .advantage-item:last-child,
.advantages-section .advantage-item:nth-last-child(-n+2) { border-bottom: none; }

.advantage-item i {
  flex-shrink: 0;
  margin-top: 0.2em;
  color: var(--color-primary);
  font-size: 1rem;
}

.advantage-item span { flex: 1; }

/* ---- Benefits: larger cards with full paragraph text ---- */
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
  max-width: 900px;
  margin: 0 auto;
}

.benefit-card {
  display: flex;
  gap: var(--space-lg);
  align-items: flex-start;
  text-align: left;
  padding: var(--space-xl);
  background: var(--color-bg-elevated);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.benefit-card:hover { border-color: var(--color-primary); box-shadow: var(--shadow-sm); }

.benefit-card-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(14, 165, 233, 0.1);
  color: var(--color-primary);
  border-radius: var(--radius-md);
  font-size: 1.25rem;
}

.benefit-card-text {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--color-text-secondary);
}
.benefit-card-text::first-line { font-weight: 600; color: var(--color-text); }

/* ---- Applications: same card style as benefits ---- */
.applications-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
  max-width: 900px;
  margin: 0 auto;
}

.application-card {
  display: flex;
  gap: var(--space-lg);
  align-items: flex-start;
  text-align: left;
  padding: var(--space-xl);
  background: var(--color-bg-elevated);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.application-card:hover { border-color: var(--color-primary); box-shadow: var(--shadow-sm); }

.application-card-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(14, 165, 233, 0.1);
  color: var(--color-primary);
  border-radius: var(--radius-md);
  font-size: 1.25rem;
}

.application-card-text {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--color-text-secondary);
}
.application-card-text::first-line { font-weight: 600; color: var(--color-text); }

/* ---- Materials: definition list with code badge + description ---- */
.materials-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: 640px;
  margin: 0 auto;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-bg-elevated);
}

.material-item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: var(--space-lg);
  align-items: start;
  padding: var(--space-lg) var(--space-xl);
  border-bottom: 1px solid var(--color-border);
}
.material-item:last-child { border-bottom: none; }

.material-code {
  margin: 0;
  font-size: 0.85rem;
  font-weight: 700;
  font-family: var(--font-heading);
  color: var(--color-primary);
  background: rgba(14, 165, 233, 0.1);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-sm);
  width: fit-content;
}

.material-desc {
  margin: 0;
  font-size: 0.925rem;
  line-height: 1.55;
  color: var(--color-text-secondary);
}

/* Legacy edu-grid/edu-card kept for any other pages that might use them */
.edu-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: var(--space-md);
}
.edu-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--space-lg);
  background: var(--color-bg-elevated);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}
.edu-card-icon { width: 48px; height: 48px; margin: 0 auto var(--space-md); display: flex; align-items: center; justify-content: center; background: rgba(14, 165, 233, 0.1); color: var(--color-primary); border-radius: var(--radius-md); font-size: 1.2rem; }
.edu-card span { font-size: 0.9rem; color: var(--color-text); line-height: 1.3; }

.future-section .future-box {
  padding: var(--space-2xl) var(--space-xl);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: white;
  border-radius: var(--radius-lg);
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}
.future-box-text {
  font-size: 1.05rem;
  line-height: 1.7;
  opacity: 0.98;
  margin: 0;
}

.content-section.bg-light { background: var(--color-bg-muted); padding: var(--space-2xl); border-radius: var(--radius-lg); }
.section-title.center { text-align: center; }

/* About */
.about { padding: var(--space-4xl) 0; background: var(--color-bg-muted); }
.about-content {
  text-align: center;
  max-width: 560px;
  margin: 0 auto;
}
.about-content .section-label { margin-bottom: var(--space-sm); }
.about-content .section-title { margin-bottom: var(--space-md); }
.about-lead {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: var(--space-md);
}
.about-extra {
  font-size: 0.975rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-xl);
}
.about-content .btn { margin-top: 0; }

/* Newsletter */
.newsletter-section {
  padding: var(--space-3xl) 0;
  background: linear-gradient(135deg, var(--color-bg-dark) 0%, var(--color-bg-dark-soft) 100%);
  color: white;
}

.newsletter-content { text-align: center; max-width: 480px; margin: 0 auto; }
.newsletter-title { margin-bottom: var(--space-sm); font-size: 1.5rem; font-weight: 600; }
.newsletter-lead {
  font-size: 0.95rem;
  opacity: 0.9;
  line-height: 1.5;
  margin-bottom: var(--space-lg);
}

.newsletter-form .input-group {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}
.newsletter-form input {
  flex: 1;
  padding: var(--space-md) var(--space-lg);
  border: none;
  border-radius: var(--radius-md);
  font-size: 1rem;
}
.btn-subscribe {
  padding: var(--space-md) var(--space-xl);
  background: var(--color-primary);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition-fast);
}
.btn-subscribe:hover { background: var(--color-primary-dark); }

/* ========== PAGE HEADER ========== */
.page-header {
  padding: var(--space-3xl) 0 var(--space-xl);
  text-align: center;
  background: var(--color-bg-muted);
}
.page-title { font-size: clamp(1.75rem, 4vw, 2.5rem); margin-bottom: var(--space-sm); }
.page-subtitle { color: var(--color-text-secondary); font-size: 1.1rem; }

/* ========== CONTACT ========== */
.contact-section { padding: var(--space-4xl) 0; }

.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--space-3xl);
  max-width: 900px;
  margin: 0 auto;
}

.contact-info h2 { margin-bottom: var(--space-lg); }
.contact-item {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}
.contact-item i { font-size: 1.25rem; color: var(--color-primary); margin-top: 2px; }
.contact-item h3 { font-size: 0.9rem; color: var(--color-text-muted); margin-bottom: 2px; }

.contact-form .form-group { margin-bottom: var(--space-lg); }
.contact-form label {
  display: block;
  font-weight: 500;
  margin-bottom: var(--space-xs);
}
.contact-form input, .contact-form textarea {
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color var(--transition-fast);
}
.contact-form input:focus, .contact-form textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.15);
}
.contact-form textarea { min-height: 140px; resize: vertical; }

/* ========== GROUP / ABOUT ========== */
.group-mission-vision { padding: var(--space-4xl) 0; }

.glass-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
}

.glass-card {
  padding: var(--space-2xl);
  background: var(--color-bg-elevated);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
}
.glass-card:hover { border-color: var(--color-primary); box-shadow: var(--shadow-md); }
.glass-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(14, 165, 233, 0.1);
  color: var(--color-primary);
  border-radius: var(--radius-md);
  font-size: 1.5rem;
  margin-bottom: var(--space-lg);
}
.glass-card h2 { font-size: 1.25rem; margin-bottom: var(--space-md); }
.glass-card p { color: var(--color-text-secondary); }

.core-values { padding: var(--space-4xl) 0; background: var(--color-bg-muted); }

.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
}

.value-item {
  padding: var(--space-xl);
  background: var(--color-bg-elevated);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  text-align: center;
}
.value-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(14, 165, 233, 0.1);
  color: var(--color-primary);
  border-radius: 50%;
  font-size: 1.5rem;
}
.value-item h3 { margin-bottom: var(--space-sm); }
.value-item p { color: var(--color-text-secondary); font-size: 0.95rem; }

.group-content { padding: var(--space-4xl) 0; }

.group-article {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}
.article-badge {
  display: inline-block;
  padding: var(--space-xs) var(--space-md);
  background: var(--color-primary);
  color: white;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-md);
}
.article-title { font-size: 1.75rem; margin-bottom: var(--space-lg); }
.group-article p { color: var(--color-text-secondary); }

.team-section { padding: var(--space-4xl) 0; background: var(--color-bg-muted); }

.team-title { text-align: center; margin-bottom: var(--space-sm); }
.team-subtitle { text-align: center; color: var(--color-text-secondary); margin-bottom: var(--space-2xl); }

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-xl);
}

.team-card {
  background: var(--color-bg-elevated);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
}
.team-card:hover { box-shadow: var(--shadow-md); border-color: var(--color-primary); }

.team-image-wrapper {
  aspect-ratio: 1;
  overflow: hidden;
  background: var(--color-bg-muted);
}
.team-image { width: 100%; height: 100%; object-fit: cover; }
.team-info { padding: var(--space-lg); }
.team-name { font-size: 1.15rem; margin-bottom: var(--space-xs); }
.team-position { font-size: 0.9rem; color: var(--color-primary); font-weight: 500; margin-bottom: var(--space-sm); }
.team-description { font-size: 0.95rem; color: var(--color-text-secondary); }

/* ========== PRODUCTS PAGE ========== */
.products { padding: var(--space-4xl) 0; }

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
}

.products .product-card { margin: 0; }
.products .product-card .product-image { aspect-ratio: 4/3; background: var(--color-bg-muted); overflow: hidden; }
.products .product-card .product-image img { width: 100%; height: 100%; object-fit: contain; padding: var(--space-lg); }
.products .product-content { padding: var(--space-lg); }
.product-actions { display: flex; gap: var(--space-sm); margin-top: var(--space-md); flex-wrap: wrap; }

/* Product Gallery / Catalog */
.product-gallery { padding: var(--space-4xl) 0; background: var(--color-bg-muted); }
.product-gallery-large { padding: 8rem 0; }
.product-gallery-large .section-title-large { font-size: clamp(1.5rem, 3vw, 2.25rem); margin-bottom: var(--space-sm); }
.product-gallery-lead { color: var(--color-text-secondary); margin-bottom: var(--space-2xl); max-width: 56ch; margin-left: auto; margin-right: auto; }
.container-wide { max-width: 1400px; margin-left: auto; margin-right: auto; padding-left: var(--space-lg); padding-right: var(--space-lg); }
.gallery-grid-large { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: var(--space-xl); }
.gallery-load-more-wrap { text-align: center; margin-top: var(--space-2xl); }
.gallery-load-more-wrap .btn { min-width: 160px; }

.filter-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-2xl);
}

.filter-btn {
  padding: var(--space-sm) var(--space-lg);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-family: inherit;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}
.filter-btn:hover, .filter-btn.active {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: var(--space-lg);
}

.gallery-item {
  background: var(--color-bg-elevated);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
}
.gallery-item:hover { border-color: var(--color-primary); box-shadow: var(--shadow-md); }

.gallery-item a { display: block; }
.gallery-item img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: contain;
  padding: var(--space-md);
  background: var(--color-bg-muted);
}
.gallery-item .gallery-item-info { padding: var(--space-md); }
.gallery-item .gallery-item-title { font-size: 0.95rem; margin-bottom: 2px; }
.gallery-item .gallery-item-meta { font-size: 0.85rem; color: var(--color-text-muted); }

/* Product gallery JS output (product-item) */
.gallery-grid .product-item,
.gallery-grid .gallery-item {
  background: var(--color-bg-elevated);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
}
.gallery-grid .product-item:hover,
.gallery-grid .gallery-item:hover { border-color: var(--color-primary); box-shadow: var(--shadow-md); }
.gallery-grid .item-image { position: relative; aspect-ratio: 1; background: var(--color-bg-muted); overflow: hidden; }
.gallery-grid .item-image img { width: 100%; height: 100%; object-fit: contain; padding: var(--space-md); }
.gallery-grid .item-info { padding: var(--space-md); }
.gallery-grid .item-title { font-size: 1rem; margin-bottom: 2px; }
.gallery-grid .item-subtitle { font-size: 0.85rem; color: var(--color-text-muted); margin-bottom: var(--space-sm); }
.gallery-grid .item-specs { display: flex; flex-wrap: wrap; gap: var(--space-sm); font-size: 0.8rem; color: var(--color-text-secondary); margin-bottom: var(--space-sm); }
.gallery-grid .item-desc { font-size: 0.9rem; color: var(--color-text-secondary); margin-bottom: var(--space-md); line-height: 1.4; }
.gallery-grid .item-actions { display: flex; flex-wrap: wrap; gap: var(--space-sm); align-items: center; }
.gallery-grid .item-actions a,
.gallery-grid .item-actions button { padding: var(--space-xs) var(--space-sm); font-size: 0.85rem; border-radius: var(--radius-sm); }
.gallery-grid .btn-details-link { color: var(--color-primary); }
.gallery-grid .btn-quote, .gallery-grid .btn-compare, .gallery-grid .btn-pdf { background: var(--color-bg-muted); border: 1px solid var(--color-border); cursor: pointer; }

/* ========== FOOTER ========== */
.main-footer {
  background: var(--color-bg-dark);
  color: var(--color-text-inverse);
  padding: var(--space-4xl) 0 var(--space-xl);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
  padding-bottom: var(--space-2xl);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo { height: 40px; margin-bottom: var(--space-md); filter: brightness(0) invert(1); opacity: 0.9; }

.footer-brand p {
  font-size: 0.95rem;
  opacity: 0.85;
  line-height: 1.6;
  max-width: 300px;
}

.footer-heading {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-md);
  opacity: 0.9;
}

.footer-contact { list-style: none; }
.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
  font-size: 0.9rem;
  opacity: 0.85;
}
.footer-contact i { color: var(--color-primary-light); flex-shrink: 0; margin-top: 2px; }
.footer-link { color: inherit; opacity: 0.9; }
.footer-link:hover { opacity: 1; color: var(--color-primary-light); }

.footer-bottom { text-align: center; font-size: 0.9rem; opacity: 0.7; }

/* ========== ORDER PAGE ========== */
.page-container { padding: var(--space-2xl) var(--space-lg) var(--space-4xl); max-width: 800px; margin: 0 auto; }

.form-card {
  background: var(--color-bg-elevated);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.form-step {
  display: none;
  animation: fadeIn 0.3s var(--ease-out);
}
.form-step.active { display: block; }

.step-title { font-size: 1.25rem; margin-bottom: var(--space-xl); color: var(--color-text); }

.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-lg);
}

.cat-option { cursor: pointer; }
.cat-option input { display: none; }

.cat-card {
  padding: var(--space-xl);
  background: var(--color-bg-muted);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: all var(--transition-fast);
}
.cat-option input:checked + .cat-card {
  border-color: var(--color-primary);
  background: rgba(14, 165, 233, 0.08);
}
.cat-card:hover { border-color: var(--color-primary); }
.cat-card i { font-size: 2rem; color: var(--color-primary); margin-bottom: var(--space-md); display: block; }
.cat-card h4 { font-size: 1rem; margin-bottom: var(--space-xs); }
.cat-card p { font-size: 0.9rem; color: var(--color-text-secondary); }

.form-group { margin-bottom: var(--space-lg); }
.form-group label { display: block; font-weight: 500; margin-bottom: var(--space-sm); }
.form-control {
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 1rem;
}
.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.15);
}

.series-tabs { display: flex; gap: var(--space-sm); margin-bottom: var(--space-lg); }
.tab-btn {
  padding: var(--space-sm) var(--space-lg);
  background: var(--color-bg-muted);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: inherit;
  cursor: pointer;
  transition: all var(--transition-fast);
}
.tab-btn.active, .tab-btn:hover { background: var(--color-primary); color: white; border-color: var(--color-primary); }

.tech-box {
  padding: var(--space-lg);
  background: var(--color-bg-muted);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-lg);
}
.tech-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-md); }
.tech-item { display: flex; justify-content: space-between; padding: var(--space-sm) 0; border-bottom: 1px solid var(--color-border); }
.tech-item:last-child { border-bottom: none; }

.nav-buttons { display: flex; gap: var(--space-md); margin-top: var(--space-xl); }
.btn-prev, .btn-next { padding: var(--space-md) var(--space-xl); border-radius: var(--radius-md); font-weight: 600; cursor: pointer; transition: all var(--transition-fast); }
.btn-prev { background: var(--color-bg-muted); border: 1px solid var(--color-border); }
.btn-next { background: var(--color-primary); color: white; border: none; }
.btn-next:hover { background: var(--color-primary-dark); }

/* Order page extras */
.product-display-section { margin-top: var(--space-xl); }
.product-image-top-section { margin-bottom: var(--space-lg); }
.image-container-centered { text-align: center; }
.product-preview-image-large { max-width: 280px; margin: 0 auto; }
.product-details-bottom-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-xl); }
.pdf-viewer { border: 1px solid var(--color-border); border-radius: var(--radius-md); overflow: hidden; }
.pdf-header { display: flex; justify-content: space-between; padding: var(--space-sm) var(--space-md); background: var(--color-bg-muted); }
.pdf-frame { width: 100%; height: 300px; border: none; }
.price-display { display: flex; justify-content: space-between; align-items: center; margin: var(--space-xl) 0; padding: var(--space-lg); background: var(--color-bg-muted); border-radius: var(--radius-md); }
.price-tag { font-size: 1.5rem; font-weight: 700; color: var(--color-primary); }
.action-grid { display: flex; gap: var(--space-md); flex-wrap: wrap; }
.btn-wa { background: #25d366; color: white; padding: var(--space-md) var(--space-xl); border: none; border-radius: var(--radius-md); font-weight: 600; cursor: pointer; display: inline-flex; align-items: center; gap: var(--space-sm); }
.btn-email { background: var(--color-primary); color: white; padding: var(--space-md) var(--space-xl); border: none; border-radius: var(--radius-md); font-weight: 600; cursor: pointer; display: inline-flex; align-items: center; gap: var(--space-sm); }
.tech-box.warning { background: rgba(245, 158, 11, 0.1); border-left: 4px solid #f59e0b; }
.tech-box.success { background: rgba(16, 185, 129, 0.08); border: 1px solid rgba(16, 185, 129, 0.3); }
.summary-card { padding: var(--space-md); }
.summary-header { display: flex; align-items: center; gap: var(--space-sm); margin-bottom: var(--space-md); font-weight: 600; }
.summary-row { display: flex; justify-content: space-between; padding: var(--space-xs) 0; }
.divider-dashed { border: none; border-top: 1px dashed var(--color-border); margin: var(--space-lg) 0; }
@media (max-width: 640px) { .product-details-bottom-grid { grid-template-columns: 1fr; } }

/* ========== PRODUCT DETAIL ========== */
.product-detail-page { padding: var(--space-2xl) 0 var(--space-4xl); }

.breadcrumb {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-xl);
}
.breadcrumb a { color: var(--color-text-muted); }
.breadcrumb a:hover { color: var(--color-primary); }

.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: start;
}

.detail-visuals .main-image-glass {
  background: var(--color-bg-elevated);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  border: 1px solid var(--color-border);
}
.detail-visuals img { width: 100%; height: auto; }

.detail-title { font-size: 2rem; margin-bottom: var(--space-sm); }
.detail-subtitle { color: var(--color-text-secondary); margin-bottom: var(--space-xl); }

.specs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}
.spec-item {
  padding: var(--space-md);
  background: var(--color-bg-muted);
  border-radius: var(--radius-md);
}
.spec-label { display: block; font-size: 0.8rem; color: var(--color-text-muted); margin-bottom: 2px; }
.spec-value { font-weight: 600; }

.detail-actions { display: flex; gap: var(--space-md); }

.tabs { display: flex; gap: var(--space-sm); margin-bottom: var(--space-lg); }
.tab-content { display: none; }
.tab-content.active { display: block; }
.tab-content p, .tab-content ul { color: var(--color-text-secondary); }
.feature-tag { display: flex; align-items: center; gap: var(--space-sm); padding: var(--space-xs) var(--space-md); background: rgba(14, 165, 233, 0.1); border-radius: var(--radius-sm); font-size: 0.9rem; }
.feature-tag i { color: var(--color-primary); }

/* ========== UTILITIES ========== */
.hidden { display: none !important; }
.text-center { text-align: center; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .product-cards-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-grid { grid-template-columns: 1fr; text-align: center; }
  .hero-subtitle { margin-left: auto; margin-right: auto; }
  .hero-cta { justify-content: center; }
  .hero-image { order: -1; }
  .hero-product-img { max-width: 280px; margin: 0 auto; }
  
  .content-row { grid-template-columns: 1fr; }
  .content-image-wrapper { position: static; }
  
  .contact-wrapper { grid-template-columns: 1fr; }
  
  .footer-content { grid-template-columns: 1fr 1fr; }
  
  .detail-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .features-grid { grid-template-columns: 1fr; }
  .product-cards-grid { grid-template-columns: 1fr; }
  .main-nav .nav-list { display: none; }
  .main-nav.active .nav-list {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    padding: var(--space-lg);
    box-shadow: var(--shadow-lg);
    border-bottom: 1px solid var(--color-border);
  }
  .mobile-toggle { display: flex; }
  
  .hero { padding: var(--space-3xl) 0; }
  .hero-title { font-size: 1.75rem; }
  
  .product-cards-grid { grid-template-columns: 1fr; }
  
  .advantages-list { grid-template-columns: 1fr; }
  .advantages-section .advantage-item:nth-last-child(-n+2) { border-bottom: 1px solid var(--color-border); }
  .advantages-section .advantage-item:last-child { border-bottom: none; }
  .benefits-grid { grid-template-columns: 1fr; }
  .applications-grid { grid-template-columns: 1fr; }
  .material-item { grid-template-columns: 1fr; }

  .footer-content { grid-template-columns: 1fr; text-align: center; }
  .footer-brand p { max-width: none; }
  .footer-logo { margin-left: auto; margin-right: auto; }
  
  .specs-grid { grid-template-columns: 1fr; }
}

/* Blog listing & single post */
.blog-listing { padding: var(--space-xl) 0; }
.blog-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: var(--space-xl); }
.blog-card { background: var(--color-bg-elevated); border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--color-border); }
.blog-card-image { display: block; aspect-ratio: 16/10; overflow: hidden; }
.blog-card-image img { width: 100%; height: 100%; object-fit: cover; }
.blog-card-body { padding: var(--space-lg); }
.blog-card-title { font-size: 1.2rem; margin-bottom: var(--space-sm); }
.blog-card-title a { color: inherit; text-decoration: none; }
.blog-card-title a:hover { color: var(--color-primary); }
.blog-card-excerpt { color: var(--color-text-secondary); font-size: 0.95rem; margin-bottom: var(--space-md); line-height: 1.5; }
.single-post { padding: var(--space-xl) 0; }
.post-back { margin-bottom: var(--space-lg); }
.post-back a { color: var(--color-text-secondary); }
.post-header { margin-bottom: var(--space-lg); }
.post-title { font-size: 1.75rem; margin-bottom: var(--space-sm); }
.post-excerpt { font-size: 1.1rem; color: var(--color-text-secondary); }
.post-featured-image { margin-bottom: var(--space-xl); border-radius: var(--radius-md); overflow: hidden; }
.post-featured-image img { width: 100%; max-height: 400px; object-fit: cover; display: block; }
.post-content { max-width: 720px; line-height: 1.7; }
.post-content p { margin-bottom: var(--space-md); }
.post-content h2 { font-size: 1.35rem; margin: var(--space-xl) 0 var(--space-sm); }
.post-content ul, .post-content ol { margin-bottom: var(--space-md); padding-left: var(--space-lg); }
.post-content img { max-width: 100%; height: auto; border-radius: var(--radius-sm); }