/* ==========================================================================
   BONGSHAI STEEL - ULTRA FAST DESIGN SYSTEM & STYLESHEET
   ========================================================================== */

:root {
  --primary: #0b4ecb;
  --primary-hover: #083c9e;
  --primary-light: #eef4ff;
  --accent: #0ea5e9;
  --dark-bg: #0f172a;
  --dark-surface: #1e293b;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --text-light: #f8fafc;
  --border-color: #e2e8f0;
  --card-bg: #ffffff;
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 24px rgba(0,0,0,0.12);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-heading: 'Outfit', 'Inter', system-ui, sans-serif;
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  text-size-adjust: 100%;
  overflow-x: hidden;
}

body {
  font-family: var(--font-sans);
  color: var(--text-main);
  background-color: #f8fafc;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
  text-decoration: none;
}

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

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

/* ==========================================================================
   TOP BAR & NAVIGATION (MATCHING SCREENSHOT)
   ========================================================================== */

/* Top Utility Header */
.top-header {
  background-color: #ffffff;
  border-bottom: 1px solid var(--border-color);
  padding: 12px 0;
  font-size: 0.95rem;
}

.top-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 15px;
}

.brand-wrapper {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  color: #6366f1; /* Matching blue/purple shade from screenshot */
  letter-spacing: 0.5px;
  line-height: 1.1;
}

.brand-subtitle {
  font-size: 0.9rem;
  color: #6366f1;
  font-weight: 500;
  margin-top: 2px;
}

.top-contact-info {
  display: flex;
  align-items: center;
  gap: 30px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #1e293b;
  font-weight: 600;
}

.contact-item svg {
  width: 22px;
  height: 22px;
  color: #16a34a; /* Vibrant green icon matching screenshot */
  flex-shrink: 0;
}

/* Main Navigation Bar - Matching Vibrant Blue Bar */
.main-navbar {
  background-color: #0466c8; /* Deep vivid blue from screenshot */
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 4px 12px rgba(4, 102, 200, 0.25);
  will-change: transform;
}

.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-menu {
  display: flex;
  list-style: none;
  align-items: center;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 16px 20px;
  color: #ffffff;
  font-weight: 700;
  font-size: 1.05rem;
  transition: background-color var(--transition-fast);
  cursor: pointer;
  white-space: nowrap;
}

.nav-link:hover, .nav-link.active {
  background-color: rgba(255, 255, 255, 0.15);
}

.arrow-icon {
  width: 14px;
  height: 14px;
  transition: transform var(--transition-fast);
}

.nav-item:hover .arrow-icon {
  transform: rotate(180deg);
}

/* Mega Dropdown Menu for Products */
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background-color: #ffffff;
  min-width: 320px;
  box-shadow: var(--shadow-lg);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  border: 1px solid var(--border-color);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
  z-index: 1100;
  overflow: hidden;
}

.nav-item:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  color: #1e293b;
  font-weight: 600;
  font-size: 0.95rem;
  border-bottom: 1px solid #f1f5f9;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.dropdown-link:last-child {
  border-bottom: none;
}

.dropdown-link:hover {
  background-color: var(--primary-light);
  color: var(--primary);
}

.dropdown-icon-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--primary);
}

/* Header Actions */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 15px;
}

.btn-quote {
  background-color: #10b981; /* Green CTA */
  color: #ffffff;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.95rem;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
  cursor: pointer;
  border: none;
}

.btn-quote:hover {
  background-color: #059669;
  transform: translateY(-1px);
}

/* Hamburger for Mobile */
.hamburger {
  display: none;
  background: none;
  border: none;
  color: #ffffff;
  font-size: 1.5rem;
  cursor: pointer;
  padding: 10px;
}

/* Mobile Navigation Drawer */
.mobile-drawer {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(15, 23, 42, 0.8);
  backdrop-filter: blur(4px);
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-fast), visibility var(--transition-fast);
}

.mobile-drawer.active {
  opacity: 1;
  visibility: visible;
}

.drawer-content {
  width: 300px;
  height: 100%;
  background-color: #ffffff;
  padding: 24px;
  overflow-y: auto;
  transform: translateX(-100%);
  transition: transform var(--transition-normal);
}

.mobile-drawer.active .drawer-content {
  transform: translateX(0);
}

.drawer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-color);
}

.drawer-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-main);
}

.mobile-menu {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.mobile-link {
  display: block;
  padding: 10px 0;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
}

.mobile-sub-menu {
  list-style: none;
  padding-left: 16px;
  margin-top: 8px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.mobile-sub-link {
  display: block;
  padding: 6px 0;
  font-size: 0.95rem;
  color: var(--primary);
  font-weight: 600;
}

/* ==========================================================================
   MAIN HERO BANNER
   ========================================================================== */

.hero-section {
  position: relative;
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  color: #ffffff;
  padding: 80px 20px;
  overflow: hidden;
}

.hero-container {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.hero-tag {
  display: inline-block;
  background-color: rgba(14, 165, 233, 0.2);
  color: #38bdf8;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
}

.hero-title span {
  color: #38bdf8;
}

.hero-description {
  font-size: 1.15rem;
  color: #94a3b8;
  margin-bottom: 30px;
  max-width: 540px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-primary-hero {
  background-color: var(--primary);
  color: #ffffff;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 1.05rem;
  transition: transform var(--transition-fast), background-color var(--transition-fast);
}

.btn-primary-hero:hover {
  background-color: var(--primary-hover);
  transform: translateY(-2px);
}

.btn-secondary-hero {
  background-color: transparent;
  border: 2px solid rgba(255, 255, 255, 0.2);
  color: #ffffff;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 1.05rem;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.btn-secondary-hero:hover {
  border-color: #ffffff;
  background-color: rgba(255, 255, 255, 0.05);
}

.hero-image-wrap {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.hero-image-wrap img {
  width: 100%;
  height: 420px;
  object-fit: cover;
}

/* Quick Stats Bar */
.stats-banner {
  background-color: #ffffff;
  border-bottom: 1px solid var(--border-color);
  padding: 30px 0;
  box-shadow: var(--shadow-sm);
}

.stats-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  text-align: center;
}

.stat-item h3 {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--primary);
}

.stat-item p {
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.95rem;
}

/* ==========================================================================
   PRODUCTS SECTION (MAIN CATALOG)
   ========================================================================== */

.section {
  padding: 70px 20px;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 45px;
}

.section-subtitle {
  color: var(--primary);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.85rem;
  margin-bottom: 8px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--dark-bg);
}

/* Product Filter Buttons */
.product-filters {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 40px;
}

.filter-btn {
  background-color: #ffffff;
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 10px 22px;
  border-radius: 30px;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

.filter-btn:hover, .filter-btn.active {
  background-color: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  box-shadow: 0 4px 12px rgba(11, 78, 203, 0.25);
}

/* Products Grid */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 30px;
  will-change: transform, opacity;
}

.product-card {
  background-color: var(--card-bg);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.product-thumb {
  position: relative;
  height: 240px;
  overflow: hidden;
  background-color: #f1f5f9;
}

.product-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.product-card:hover .product-thumb img {
  transform: scale(1.05);
}

.product-badge {
  position: absolute;
  top: 15px;
  right: 15px;
  background-color: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(4px);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 12px;
  letter-spacing: 0.5px;
}

.product-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.product-category {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
}

.product-name {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--dark-bg);
  margin-bottom: 10px;
  line-height: 1.3;
}

.product-desc {
  font-size: 0.92rem;
  color: var(--text-muted);
  margin-bottom: 18px;
  line-height: 1.5;
}

.product-specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 20px;
  padding: 12px;
  background-color: #f8fafc;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
}

.spec-item {
  display: flex;
  flex-direction: column;
}

.spec-label {
  color: var(--text-muted);
  font-size: 0.75rem;
}

.spec-val {
  font-weight: 700;
  color: var(--dark-bg);
}

.product-footer {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 15px;
  border-top: 1px solid var(--border-color);
}

.product-price {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--primary);
}

.btn-detail {
  background-color: var(--primary-light);
  color: var(--primary);
  border: none;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.85rem;
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.btn-detail:hover {
  background-color: var(--primary);
  color: #ffffff;
}

/* ==========================================================================
   INTERACTIVE ESTIMATOR TOOL
   ========================================================================== */

.estimator-section {
  background-color: var(--dark-bg);
  color: #ffffff;
  padding: 80px 20px;
}

.estimator-card {
  background-color: var(--dark-surface);
  border-radius: var(--radius-lg);
  padding: 40px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.estimator-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: #cbd5e1;
}

.form-select, .form-input {
  width: 100%;
  padding: 12px 16px;
  background-color: #0f172a;
  border: 1px solid #334155;
  border-radius: var(--radius-sm);
  color: #ffffff;
  font-size: 0.95rem;
  outline: none;
  transition: border-color var(--transition-fast);
}

.form-select:focus, .form-input:focus {
  border-color: var(--accent);
}

.estimator-result {
  background-color: #0f172a;
  border-radius: var(--radius-md);
  padding: 30px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  border: 1px solid #334155;
}

.result-val {
  font-family: var(--font-heading);
  font-size: 2.8rem;
  font-weight: 800;
  color: #38bdf8;
  margin: 15px 0 5px 0;
}

.result-weight {
  font-size: 1.1rem;
  color: #94a3b8;
  margin-bottom: 25px;
}

/* ==========================================================================
   PAGE SECTIONS (OTHER MENU TABS)
   ========================================================================== */

.page-view {
  display: none;
}

.page-view.active-view {
  display: block;
}

/* Company / About View */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}

.about-content h2 {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 20px;
  color: var(--dark-bg);
}

.about-content p {
  color: var(--text-muted);
  margin-bottom: 16px;
}

/* Services View */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.service-card {
  background: #ffffff;
  padding: 30px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.service-card h3 {
  font-size: 1.4rem;
  font-weight: 800;
  margin-bottom: 12px;
  color: var(--primary);
}

/* Contact View */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.contact-card {
  background: #ffffff;
  padding: 35px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.contact-card .form-input {
  background-color: #ffffff;
  border: 1px solid var(--border-color);
  color: var(--text-main);
}

.contact-card .form-input:focus {
  border-color: var(--accent);
}

:root[data-theme="dark"] .contact-card .form-input {
  background-color: #0f172a;
  border-color: #334155;
}

/* ==========================================================================
   MODAL POPUP
   ========================================================================== */

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(4px);
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-fast), visibility var(--transition-fast);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-box {
  background-color: #ffffff;
  width: 100%;
  max-width: 650px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.25);
  transform: translateY(20px);
  transition: transform var(--transition-fast);
}

.modal-overlay.active .modal-box {
  transform: translateY(0);
}

.modal-header {
  background-color: var(--primary);
  color: #ffffff;
  padding: 20px 25px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-title {
  font-size: 1.3rem;
  font-weight: 800;
}

.modal-close {
  background: none;
  border: none;
  color: #ffffff;
  font-size: 1.5rem;
  cursor: pointer;
}

.modal-body {
  padding: 25px;
  max-height: 80vh;
  overflow-y: auto;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */

.footer {
  background-color: var(--dark-bg);
  color: #cbd5e1;
  padding: 60px 20px 30px 20px;
}

.footer-container {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-col h4 {
  color: #ffffff;
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: 20px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a:hover {
  color: var(--accent);
}

.footer-bottom {
  max-width: 1280px;
  margin: 0 auto;
  padding-top: 25px;
  border-top: 1px solid #334155;
  text-align: center;
  font-size: 0.85rem;
  color: #64748b;
}

/* ==========================================================================
   DARK / LIGHT THEME
   ========================================================================== */

:root[data-theme="dark"] {
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --border-color: #334155;
  --card-bg: #1e293b;
  --primary-light: rgba(56, 189, 248, 0.12);
}

:root[data-theme="dark"] body {
  background-color: var(--dark-bg);
}

:root[data-theme="dark"] .top-header {
  background-color: var(--dark-surface);
  border-bottom-color: #334155;
}

:root[data-theme="dark"] .contact-item {
  color: var(--text-light);
}

:root[data-theme="dark"] .stats-banner,
:root[data-theme="dark"] .service-card,
:root[data-theme="dark"] .contact-card,
:root[data-theme="dark"] .filter-btn,
:root[data-theme="dark"] .modal-box,
:root[data-theme="dark"] .drawer-content {
  background-color: var(--dark-surface);
  border-color: #334155;
}

:root[data-theme="dark"] .product-thumb {
  background-color: #0f172a;
}

:root[data-theme="dark"] .product-specs {
  background-color: #0f172a;
}

:root[data-theme="dark"] .section-title,
:root[data-theme="dark"] .about-content h2,
:root[data-theme="dark"] .stat-item h3,
:root[data-theme="dark"] .product-name {
  color: var(--text-light);
}

:root[data-theme="dark"] .dropdown-menu {
  background-color: var(--dark-surface);
  border-color: #334155;
}

:root[data-theme="dark"] .dropdown-link {
  color: var(--text-light);
  border-bottom-color: #334155;
}

:root[data-theme="dark"] .mobile-link {
  color: var(--text-light);
}

.theme-toggle {
  background: rgba(255, 255, 255, 0.15);
  border: none;
  color: #ffffff;
  font-size: 1.1rem;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.theme-toggle:hover {
  background: rgba(255, 255, 255, 0.28);
  transform: rotate(15deg);
}

/* ==========================================================================
   CATEGORY OVERVIEW CARDS (GLASSMORPHISM) — HOME
   ========================================================================== */

.category-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 26px;
}

.glass-card {
  display: block;
  cursor: pointer;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.5);
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  will-change: transform;
}

.glass-card:hover {
  transform: translateY(-8px) translateZ(0);
  box-shadow: var(--shadow-lg);
}

.cat-home-thumb {
  height: 170px;
  overflow: hidden;
}

.cat-home-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.glass-card:hover .cat-home-thumb img {
  transform: scale(1.08);
}

.cat-home-body {
  padding: 22px;
}

.cat-home-icon {
  font-size: 1.6rem;
}

.cat-home-body h3 {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--dark-bg);
  margin: 8px 0 6px;
}

.cat-home-body p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  min-height: 40px;
}

.cat-home-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px solid rgba(148, 163, 184, 0.3);
  font-size: 0.85rem;
}

.cat-home-price {
  font-weight: 800;
  color: var(--primary);
}

.cat-home-count {
  font-weight: 700;
  color: var(--text-muted);
}

:root[data-theme="dark"] .glass-card {
  background: rgba(30, 41, 59, 0.55);
  border-color: rgba(255, 255, 255, 0.08);
}

:root[data-theme="dark"] .cat-home-body h3 {
  color: var(--text-light);
}

/* ==========================================================================
   FULL CATALOG GROUPING (PRODUCTS VIEW)
   ========================================================================== */

.catalog-group {
  margin-bottom: 55px;
}

.catalog-group-header {
  margin-bottom: 22px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--border-color);
}

.catalog-group-header h3 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--dark-bg);
}

:root[data-theme="dark"] .catalog-group-header h3 {
  color: var(--text-light);
}

.catalog-group-header h3 span {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-left: 8px;
}

/* ==========================================================================
   MODAL FORM FIELDS
   ========================================================================== */

.modal-spec-grid {
  background: #f8fafc;
  padding: 20px;
  border-radius: 8px;
  margin-bottom: 20px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  color: var(--text-main);
}

:root[data-theme="dark"] .modal-spec-grid {
  background: #0f172a;
}

.form-field {
  margin-bottom: 15px;
}

.form-field label {
  display: block;
  font-weight: 600;
  margin-bottom: 5px;
  color: var(--text-main);
}

.form-field input,
.form-field textarea {
  width: 100%;
  padding: 10px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: #ffffff;
  color: var(--text-main);
}

:root[data-theme="dark"] .form-field input,
:root[data-theme="dark"] .form-field textarea {
  background: #0f172a;
}

.btn-modal-cta {
  width: 100%;
  background: var(--primary);
  color: #fff;
  padding: 14px;
  border: none;
  border-radius: 8px;
  font-weight: 700;
  font-size: 1.05rem;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.btn-modal-cta:hover {
  background: var(--primary-hover);
}

.btn-modal-submit {
  width: 100%;
  background: #10b981;
  color: #fff;
  padding: 14px;
  border: none;
  border-radius: 8px;
  font-weight: 700;
  font-size: 1.05rem;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.btn-modal-submit:hover {
  background: #059669;
}

/* ==========================================================================
   MEDIA GALLERY
   ========================================================================== */

.media-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.media-item {
  position: relative;
  border-radius: 10px;
  overflow: hidden;
  height: 220px;
  box-shadow: var(--shadow-sm);
}

.media-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.media-item:hover img {
  transform: scale(1.08);
}

.media-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 10px 14px;
  background: linear-gradient(to top, rgba(15, 23, 42, 0.85), transparent);
  color: #ffffff;
  font-size: 0.8rem;
  font-weight: 700;
}

/* Responsive Rules */
@media (max-width: 1024px) {
  .top-container {
    flex-direction: column;
    align-items: flex-start;
  }
  .hero-container, .estimator-grid, .about-grid, .contact-grid {
    grid-template-columns: 1fr;
  }
  .nav-menu {
    display: none;
  }
  .hamburger {
    display: block;
  }
}

@media (max-width: 640px) {
  .hero-title {
    font-size: 2.2rem;
  }
  .section-title {
    font-size: 1.8rem;
  }
  .products-grid,
  .category-cards-grid,
  .media-grid {
    grid-template-columns: 1fr;
  }
  .modal-spec-grid {
    grid-template-columns: 1fr;
  }
}