/* ==========================================================================
   FABRIKA BLOCKOV - Main Stylesheet
   Dark Minimal Design with Light Blue Accents
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Variables - Design Tokens
   -------------------------------------------------------------------------- */
:root {
  /* Colors - Dark Theme */
  --color-bg: #0F0F0F;
  --color-bg-white: #1A1A1A;
  --color-text: #E0E0E0;
  --color-text-muted: #B0B0B0;
  --color-text-light: #888888;
  
  /* Light Blue Palette */
  --color-primary: #172b86;
  --color-primary-hover: #1a1b72;
  --color-primary-light: #5c5eca;
  --color-primary-pale: rgba(96, 79, 247, 0.1);
  --color-primary-dark: #0210d1;
  
  /* Neutral */
  --color-border: #2A2A2A;
  --color-border-light: #333333;
  --color-shadow: rgba(0, 0, 0, 0.3);
  
  /* Status */
  --color-success: #4CAF50;
  --color-error: #F44336;
  --color-warning: #FF9800;
  
  /* Typography */
  --font-primary: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Unbounded', var(--font-primary);
  
  /* Font Sizes */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  
  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px var(--color-shadow);
  --shadow-md: 0 4px 6px var(--color-shadow);
  --shadow-lg: 0 10px 15px var(--color-shadow);
  --shadow-xl: 0 20px 25px var(--color-shadow);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;
  
  /* Layout */
  --container-max: 1280px;
  --header-height: 72px;
}

/* --------------------------------------------------------------------------
   Base Styles
   -------------------------------------------------------------------------- */
html {
  font-family: var(--font-primary);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  max-width: 100vw;
  overflow-x: hidden;
}

main {
  flex: 1;
  padding-top: var(--header-height);
  max-width: 100vw;
  overflow-x: hidden;
}

/* --------------------------------------------------------------------------
   Typography
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

h1 { font-size: var(--text-4xl); letter-spacing: -2px; word-break: break-word;}
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-base); }

p {
  margin-bottom: var(--space-4);
  color: var(--color-text-muted);
}

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

a:hover {
  color: var(--color-primary-dark);
}

strong { font-weight: 600; }
small { font-size: var(--text-sm); }

/* --------------------------------------------------------------------------
   Container
   -------------------------------------------------------------------------- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
}

@media (min-width: 768px) {
  .container {
    padding: 0 var(--space-4);
    width: calc(100% - (var(--space-6) * 2));
    padding: 0 var(--space-6);
  }
}

/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  display: flex;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--color-bg-white);
  border-bottom: 1px solid var(--color-border-light);
  z-index: 1000;
  box-shadow: var(--shadow-sm);
}
.site-header > .container{
  width: calc(100vw - 2rem);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: var(--space-6);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--color-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.logo-icon img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.logo:hover {
  opacity: 1;
}

/* Navigation */
.main-nav {
  display: none;
}

@media (min-width: 768px) {
  .main-nav {
    display: flex;
    align-items: center;
    gap: var(--space-6);
  }
}

.main-nav a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  padding: var(--space-2) 0;
  position: relative;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width var(--transition-base);
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--color-text);
}

.main-nav a:hover::after,
.main-nav a.active::after {
  width: 100%;
}

/* Search */
.search-form {
  display: none;
  flex: 1;
  max-width: 400px;
}

@media (min-width: 1024px) {
  .search-form {
    display: flex;
  }
}

.search-input-wrap {
  position: relative;
  width: 100%;
}

.search-input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  padding-left: var(--space-10);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  transition: all var(--transition-fast);
}

.search-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-pale);
}

.search-icon {
  position: absolute;
  left: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-light);
  pointer-events: none;
}

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.header-phone {
  display: none;
  align-items: center;
  gap: var(--space-2);
  font-weight: 600;
  color: var(--color-text);
}

@media (min-width: 1024px) {
  .header-phone {
    display: flex;
  }
}

.mobile-menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--color-text-muted);
}

@media (min-width: 768px) {
  .mobile-menu-btn {
    display: none;
  }
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-primary);
  font-size: var(--text-sm);
  font-weight: 600;
  line-height: 1.4;
  text-align: center;
  white-space: nowrap;
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn:hover {
  opacity: 1;
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

/* Primary Button */
.btn-primary {
  background: var(--color-primary);
  color: var(--color-text);
  border-color: var(--color-primary);
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  color: var(--color-text);
}

/* Secondary Button */
.btn-secondary {
  background: var(--color-bg-white);
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn-secondary:hover {
  background: var(--color-bg);
  border-color: var(--color-primary);
  color: var(--color-text);
}

/* Outline Button */
.btn-outline {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-primary);
  color: var(--color-text);
}

/* Button Sizes */
.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
  border-radius: var(--radius-lg);
}

/* --------------------------------------------------------------------------
   Cards
   -------------------------------------------------------------------------- */
.card {
  background: var(--color-bg-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.card-image {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
  background: var(--color-bg);
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform var(--transition-slow);
}

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

.card-body {
  padding: var(--space-4);
}

.card-title {
  font-size: var(--text-sm);
  font-weight: 500;
  margin-bottom: var(--space-2);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.4;
}

.card-price {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
}

.card-price-old {
  font-size: var(--text-sm);
  color: var(--color-text-light);
  text-decoration: line-through;
  margin-left: var(--space-2);
  font-weight: 400;
}

.card-articul {
  font-size: var(--text-xs);
  color: var(--color-text-light);
  margin-top: var(--space-1);
}

.card-badge {
  position: absolute;
  top: var(--space-3);
  left: var(--space-3);
  padding: var(--space-1) var(--space-3);
  background: var(--color-primary);
  color: var(--color-text);
  font-size: var(--text-xs);
  font-weight: 600;
  border-radius: var(--radius-sm);
}

/* --------------------------------------------------------------------------
   Product Grid
   -------------------------------------------------------------------------- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-2);
}

@media (min-width: 640px) {
  .product-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
  }
}

@media (min-width: 1024px) {
  .product-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
  }
}

/* --------------------------------------------------------------------------
   Category Cards
   -------------------------------------------------------------------------- */
.category-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

@media (min-width: 768px) {
  .category-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px) {
  .category-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.category-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--space-6);
  background: var(--color-bg-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: all var(--transition-base);
}

.category-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.category-icon {
  width: 64px;
  height: 64px;
  margin-bottom: var(--space-4);
  background: var(--color-primary-pale);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.category-card:hover .category-icon {
  background: var(--color-primary);
}

.category-name {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
}

.category-count {
  font-size: var(--text-xs);
  color: var(--color-text-light);
  margin-top: var(--space-1);
}

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero {
  padding: var(--space-12) 0;
  background: linear-gradient(135deg, var(--color-primary-pale) 0%, var(--color-bg) 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--color-primary) 0%, transparent 70%);
  opacity: 0.15;
  border-radius: 50%;
}

.hero-inner {
  display: grid;
  gap: var(--space-8);
  align-items: center;
}

@media (min-width: 1024px) {
  .hero-inner {
    grid-template-columns: 1fr 1fr;
  }
}

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

.hero-title {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-4);
}

@media (min-width: 768px) {
  .hero-title {
    font-size: var(--text-5xl);
  }
}

.hero-title span {
  color: var(--color-primary-dark);
}

.hero-text {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.hero-image {
  display: none;
}

@media (min-width: 1024px) {
  .hero-image {
    display: block;
    position: relative;
    z-index: 1;
  }
}

/* --------------------------------------------------------------------------
   Section
   -------------------------------------------------------------------------- */
.section {
  padding: var(--space-12) 0;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-8);
  flex-wrap: wrap;
  gap: var(--space-4);
}

.section-title {
  margin-top: 0.25rem;
  margin-bottom: 0.75rem;
}

.section-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
}

.section-link:hover {
  color: var(--color-primary-dark);
}

/* --------------------------------------------------------------------------
   Forms
   -------------------------------------------------------------------------- */
.form-group {
  margin-bottom: var(--space-4);
}

.form-label {
  display: block;
  margin-bottom: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
}

.form-label span {
  color: var(--color-error);
}

.form-input,
.form-textarea,
.form-select {
  width: calc(100% - (var(--space-4) * 2));
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  color: var(--color-text);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-pale);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-light);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-hint {
  font-size: var(--text-xs);
  color: var(--color-text-light);
  margin-top: var(--space-1);
}

.form-error {
  font-size: var(--text-xs);
  color: var(--color-error);
  margin-top: var(--space-1);
}

/* --------------------------------------------------------------------------
   Breadcrumbs
   -------------------------------------------------------------------------- */
.breadcrumbs {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
  padding: var(--space-4) 0;
  font-size: var(--text-sm);
}

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

.breadcrumbs a:hover {
  color: var(--color-primary-dark);
}

.breadcrumbs span {
  color: var(--color-text-light);
}

.breadcrumbs-current {
  color: var(--color-text);
  font-weight: 500;
}

/* --------------------------------------------------------------------------
   Pagination
   -------------------------------------------------------------------------- */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-8);
}

@media screen and (max-width : 651px) {
  .pagination{
    max-width: 100vw;
    overflow-x: auto;
  }
}

.pagination-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 var(--space-3);
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
  transition: all var(--transition-fast);
}

.pagination-btn:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-pale);
}

.pagination-btn.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-text);
}

.pagination-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* --------------------------------------------------------------------------
   Product Detail
   -------------------------------------------------------------------------- */
.product-detail {
  display: grid;
  gap: var(--space-8);
  padding: var(--space-8) 0;
}

@media (min-width: 1024px) {
  .product-detail {
    grid-template-columns: 1fr 1fr;
  }
}

.product-gallery {
  position: relative;
}

.product-main-image {
  aspect-ratio: 1;
  background: var(--color-bg-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  width: calc(100vw - 1rem);
}

.product-main-image img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.product-info {
  display: flex;
  flex-direction: column;
  width: calc(100vw - 1rem);
}

.product-articul {
  font-size: var(--text-sm);
  color: var(--color-text-light);
  margin-bottom: var(--space-2);
}

.product-title {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-4);
}

@media (min-width: 768px) {
  .product-title {
    font-size: var(--text-3xl);
  }
}

.product-price-block {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--color-border-light);
}

.product-price {
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-text);
}

.product-availability {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-success);
}

.product-availability.out-of-stock {
  color: var(--color-text-light);
}

.product-description {
  margin-bottom: var(--space-6);
  color: var(--color-text-muted);
  line-height: 1.7;
}

.product-specs {
  margin-bottom: var(--space-6);
}

.product-specs-title {
  font-size: var(--text-lg);
  margin-bottom: var(--space-4);
}

.product-specs-list {
  display: grid;
  gap: var(--space-2);
}

.product-spec-row {
  display: flex;
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-border-light);
  font-size: var(--text-sm);
}

.product-spec-name {
  flex: 1;
  color: var(--color-text-muted);
}

.product-spec-value {
  flex: 1;
  font-weight: 500;
}

/* Scrollable Specs Table for Mobile */
.specs-table-wrapper {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin-bottom: var(--space-4);
}

.specs-table {
  width: 100%;
  min-width: 320px;
  border-collapse: collapse;
  font-size: var(--text-sm);
}

.specs-table td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border-light);
  vertical-align: top;
}

.specs-table td.spec-name {
  color: var(--color-text-muted);
  width: 40%;
  white-space: nowrap;
}

.specs-table td.spec-value {
  font-weight: 500;
  color: var(--color-text);
}

.specs-table tr:last-child td {
  border-bottom: none;
}

@media (max-width: 640px) {
  .specs-table-wrapper {
    margin: 0 calc(-1 * var(--space-4));
    padding: 0 var(--space-4);
    width: calc(100% + (var(--space-4) * 2));
  }
  
  .specs-table td.spec-name {
    width: 45%;
  }
}

/* --------------------------------------------------------------------------
   Order Form
   -------------------------------------------------------------------------- */
.order-form {
  background: var(--color-primary-pale);
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  margin-top: auto;
}

.order-form-title {
  font-size: var(--text-lg);
  margin-bottom: var(--space-4);
}

.order-form .form-input {
  background: var(--color-bg-white);
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background: var(--color-bg-white);
  color: var(--color-text);
  padding: var(--space-12) 0 var(--space-6);
  border-top: 1px solid var(--color-border);
}

.footer-inner {
  display: grid;
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .footer-inner {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

.footer-brand {
  max-width: 300px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: var(--space-4);
}

.footer-logo:hover {
  color: var(--color-bg-white);
}

.footer-desc {
  font-size: var(--text-sm);
  color: var(--color-text-light);
  line-height: 1.6;
}

.footer-title {
  font-size: var(--text-sm);
  font-weight: 600;
  margin-bottom: var(--space-4);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-links a {
  font-size: var(--text-sm);
  color: var(--color-text-light);
  transition: color var(--transition-fast);
}

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

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-light);
  margin-bottom: var(--space-3);
}

.footer-contact-item svg,
.footer-contact-item img {
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--color-primary);
}

.footer-bottom {
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  align-items: center;
  text-align: center;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer-copyright {
  font-size: var(--text-sm);
  color: var(--color-text-light);
}

.footer-legal {
  display: flex;
  gap: var(--space-6);
}

.footer-legal a {
  font-size: var(--text-sm);
  color: var(--color-text-light);
}

.footer-legal a:hover {
  color: var(--color-primary);
}

/* --------------------------------------------------------------------------
   Utilities
   -------------------------------------------------------------------------- */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-muted { color: var(--color-text-muted); }
.text-light { color: var(--color-text-light); }
.text-primary { color: var(--color-primary-dark); }

.bg-white { background: var(--color-bg-white); }
.bg-light { background: var(--color-bg); }
.bg-primary-pale { background: var(--color-primary-pale); }

.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mb-4 { margin-bottom: var(--space-4); }
.mb-8 { margin-bottom: var(--space-8); }

.hidden { display: none !important; }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* --------------------------------------------------------------------------
   Loading States
   -------------------------------------------------------------------------- */
.loading {
  position: relative;
  pointer-events: none;
}

.loading::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
}

.spinner {
  width: 24px;
  height: 24px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* --------------------------------------------------------------------------
   Alerts
   -------------------------------------------------------------------------- */
.alert {
  padding: var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  margin-bottom: var(--space-4);
}

.alert-success {
  background: #E8F5E9;
  color: var(--color-success);
  border: 1px solid var(--color-success);
}

.alert-error {
  background: #FFEBEE;
  color: var(--color-error);
  border: 1px solid var(--color-error);
}

.alert-warning {
  background: #FFF3E0;
  color: var(--color-warning);
  border: 1px solid var(--color-warning);
}

/* --------------------------------------------------------------------------
   Sidebar / Filters
   -------------------------------------------------------------------------- */
.page-with-sidebar {
  display: grid;
  gap: var(--space-6);
  max-width: 100%;
  overflow-x: hidden;
}

@media (min-width: 1024px) {
  .page-with-sidebar {
    grid-template-columns: 280px 1fr;
  }
}

/* Category content mobile fix */
.category-content {
  max-width: 100%;
  min-width: 0;
  overflow-x: hidden;
}

@media (max-width: 1023px) {
  .page-with-sidebar {
    display: block;
  }
  
  .category-content {
    width: 100%;
    max-width: 100vw;
  }
}

.sidebar {
  display: none;
}

@media (min-width: 1024px) {
  .sidebar {
    display: block;
  }
}
@media (max-width: 1023px) {
  .section{
    padding-top: 1rem;
  }
  .sidebar{
    display: block;
  }
  .sidebar #categoryList{
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
  }
  .sidebar-list a.active{
    background: var(--color-bg-white);
  }
  .sidebar-list a{
    width: max-content;
    background: #f0f0f0;
    padding-left: 0.75rem !important;
    padding-right: 0.75rem !important;
    border-radius: 0.5rem;
  }
  .sidebar-list a .sidebar-count{
    margin-left: 0.5rem;
  }
}

.sidebar-section {
  background: var(--color-bg-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  margin-bottom: var(--space-4);
}

.sidebar-title {
  font-size: var(--text-sm);
  font-weight: 600;
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border-light);
}

.sidebar-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.sidebar-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-2) 0;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.sidebar-list a:hover {
  color: var(--color-text);
}

.sidebar-list a.active {
  color: var(--color-primary-dark);
  font-weight: 500;
}

.sidebar-count {
  font-size: var(--text-xs);
  color: var(--color-text-light);
}

/* --------------------------------------------------------------------------
   Mobile Sidebar Collapsible
   -------------------------------------------------------------------------- */
@media (max-width: 1023px) {
  .sidebar-section.collapsible {
    max-height: 200px;
    overflow: hidden;
    position: relative;
    transition: max-height var(--transition-base);
  }
  
  .sidebar-section.collapsible::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: linear-gradient(to bottom, transparent, var(--color-bg-white));
    pointer-events: none;
    transition: opacity var(--transition-base);
  }
  
  .sidebar-section.collapsible.expanded {
    max-height: 2000px;
  }
  
  .sidebar-section.collapsible.expanded::after {
    opacity: 0;
  }
  
  .sidebar-toggle-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    width: 100%;
    padding: var(--space-3);
    margin-top: var(--space-2);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
  }
  
  .sidebar-toggle-btn:hover {
    background: var(--color-primary-pale);
    border-color: var(--color-primary);
    color: var(--color-text);
  }
  
  .sidebar-toggle-btn svg {
    transition: transform var(--transition-fast);
  }
  
  .sidebar-section.expanded .sidebar-toggle-btn svg {
    transform: rotate(180deg);
  }
}

@media (min-width: 1024px) {
  .sidebar-toggle-btn {
    display: none;
  }
}

/* --------------------------------------------------------------------------
   Product Filters
   -------------------------------------------------------------------------- */
.filter-section {
  background: var(--color-bg-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  margin-bottom: var(--space-4);
}

.filter-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border-light);
}

.filter-title {
  font-size: var(--text-sm);
  font-weight: 600;
  margin: 0;
}

.filter-reset-btn {
  font-size: var(--text-xs);
  color: var(--color-text-light);
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.filter-reset-btn:hover {
  background: var(--color-bg);
  color: var(--color-text);
}

.filter-group {
  margin-bottom: var(--space-4);
}

.filter-group:last-child {
  margin-bottom: 0;
}

.filter-group-title {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-2);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.filter-options {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  max-height: 180px;
  overflow-y: auto;
}

.filter-checkbox {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.filter-checkbox:hover {
  color: var(--color-text);
}

.filter-checkbox input[type="checkbox"] {
  width: 16px;
  height: 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  accent-color: var(--color-primary);
}

.filter-checkbox-count {
  font-size: var(--text-xs);
  color: var(--color-text-light);
  margin-left: auto;
}

/* Mobile Filter Toggle Button */
.mobile-filter-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  width: 100%;
  padding: var(--space-3) var(--space-4);
  margin-bottom: var(--space-4);
  background: var(--color-primary);
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.mobile-filter-toggle:hover {
  background: var(--color-primary-hover);
}

@media (max-width: 1023px) {
  .mobile-filter-toggle {
    display: flex;
  }
  
  /* Hide filter-section in desktop sidebar on mobile */
  .sidebar .filter-section {
    display: none;
  }
  
  .filter-section.mobile-visible {
    display: block;
    margin-bottom: var(--space-4);
  }
  
  .filter-section.collapsible {
    max-height: 200px;
    overflow: hidden;
    position: relative;
  }
  
  .filter-section.collapsible.expanded {
    max-height: 2000px;
  }
  
  /* Always show filter-section inside mobile modal */
  .mobile-filter-modal .filter-section {
    display: block !important;
  }
}

.active-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.active-filter-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  background: var(--color-primary-pale);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  color: var(--color-text);
}

.active-filter-tag button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.active-filter-tag button:hover {
  color: var(--color-error);
}

/* --------------------------------------------------------------------------
   Mobile Menu
   -------------------------------------------------------------------------- */
.mobile-menu {
  position: fixed;
  inset: 0;
  background: var(--color-bg-white);
  z-index: 1001;
  transform: translateX(-100%);
  transition: transform var(--transition-base);
  padding: var(--space-6);
  overflow-y: auto;
}

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

.mobile-menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-8);
}

.mobile-menu-close {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  cursor: pointer;
}

.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.mobile-nav a {
  font-size: var(--text-lg);
  font-weight: 500;
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-border-light);
}

/* --------------------------------------------------------------------------
   Contact Section
   -------------------------------------------------------------------------- */
.contact-section {
  background: var(--color-primary-pale);
  padding: var(--space-12) 0;
}

.contact-grid {
  display: grid;
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.contact-info h3 {
  margin-bottom: var(--space-6);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.contact-icon {
  width: 48px;
  height: 48px;
  background: var(--color-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: brightness(0) invert(1);
}

.footer-contact-item img {
  width: 20px;
  height: 20px;
  object-fit: contain;
  filter: brightness(0) invert(1);
  opacity: 0.9;
}

.footer-contact-item span img {
  width: 16px;
  height: 16px;
  filter: brightness(0) invert(1);
  opacity: 0.8;
}

.header-phone img {
  width: 20px;
  height: 20px;
  object-fit: contain;
  filter: brightness(0) invert(1);
  opacity: 0.9;
}

.mobile-menu-close img {
  filter: brightness(0) invert(1);
  opacity: 0.9;
}

.section-link img {
  filter: brightness(0) invert(1);
  opacity: 0.8;
}

/* General icon inversion for dark theme - applies to all icons from asset/icon/ */
img[src*="asset/icon/"] {
  filter: brightness(0) invert(1);
  opacity: 0.9;
}

/* Contact icons in colored backgrounds need full opacity */
.contact-icon img {
  filter: brightness(0) invert(1);
  opacity: 1;
}

.contact-text strong {
  display: block;
  margin-bottom: var(--space-1);
}

.contact-text span {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.contact-form-wrap {
  background: var(--color-bg-white);
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}
/* colorLab */
@media screen and (max-width:768px){
  .calculator-view,
  .calculator-block{
    max-width: calc(100vw - 1rem);
  }
  .calculator-block .card{
    padding-left: 0.5rem !important;
    padding-right: 0.5rem !important;
  }
}

/* Mobile Filter Button */
.mobile-filter-btn {
  display: none;
}

@media (max-width: 768px) {
  .mobile-filter-btn {
    display: flex !important;
  }
  
  .sidebar {
    display: none !important;
  }
}

/* Mobile Filter Modal */
.mobile-filter-modal {
  display: none;
}

.mobile-filter-content {
  animation: slideIn 0.3s ease-out;
  position: relative;
  z-index: 1;
  color: var(--color-text);
}

/* Ensure filter content is visible in mobile modal */
.mobile-filter-modal .filter-section {
  display: block !important;
  background: var(--color-bg-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  margin-bottom: var(--space-4);
}

.mobile-filter-modal .filter-group {
  margin-bottom: var(--space-4);
}

.mobile-filter-modal .filter-group:last-child {
  margin-bottom: 0;
}

.mobile-filter-modal .filter-group-title {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-2);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.mobile-filter-modal .filter-options {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  max-height: none;
  overflow-y: visible;
}

.mobile-filter-modal .filter-checkbox {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.mobile-filter-modal .filter-checkbox:hover {
  color: var(--color-text);
}

.mobile-filter-modal .filter-checkbox input[type="radio"],
.mobile-filter-modal .filter-checkbox input[type="checkbox"] {
  width: 18px;
  height: 18px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  accent-color: var(--color-primary);
  flex-shrink: 0;
}

.mobile-filter-modal .filter-checkbox input[type="radio"] {
  border-radius: 50%;
}

.mobile-filter-modal .filter-checkbox span {
  flex: 1;
}

.mobile-filter-modal .form-input {
  width: 100%;
  padding: var(--space-3);
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-size: var(--text-sm);
}

.mobile-filter-modal .form-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-pale);
}

.mobile-filter-modal .btn {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
}

.mobile-filter-modal .btn-primary {
  background: var(--color-primary);
  color: white;
}

.mobile-filter-modal .btn-primary:hover {
  background: var(--color-primary-hover);
}

.mobile-filter-modal .btn-outline {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.mobile-filter-modal .btn-outline:hover {
  background: var(--color-bg-white);
  border-color: var(--color-primary);
}

@keyframes slideIn {
  from {
    transform: translateY(-20px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@media (min-width: 769px) {
  .mobile-filter-modal {
    display: none !important;
  }
  
  .mobile-filter-btn {
    display: none !important;
  }
}