/* ==========================================================================
   Chemcool Electronics - Modern Production Design System
   Autonomous Production Architecture
   ========================================================================== */

:root {
  --color-primary: #0284c7;       /* Tech Cyan / Blue */
  --color-primary-hover: #0369a1;
  --color-primary-glow: rgba(2, 132, 199, 0.35);
  --color-secondary: #059669;     /* Circuit Green */
  --color-secondary-hover: #047857;
  --color-accent: #f59e0b;        /* Solar Amber */
  --color-accent-hover: #d97706;
  
  /* Dark Mode Default (High-Tech Electronics Theme) */
  --color-bg: #0b0f19;
  --color-surface: #111827;
  --color-surface-elevated: #1f2937;
  --color-border: #374151;
  --color-border-glow: rgba(2, 132, 199, 0.4);
  --color-text: #f3f4f6;
  --color-text-muted: #9ca3af;
  --color-text-dim: #6b7280;
  
  --font-main: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-mono: 'Fira Code', 'Cascadia Code', Consolas, Monaco, monospace;
  
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  
  --container-max: 1280px;
  --header-height: 76px;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.25);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -2px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 10px 25px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -4px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 20px rgba(2, 132, 199, 0.35);
  
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 400ms cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="light"] {
  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-surface-elevated: #f1f5f9;
  --color-border: #e2e8f0;
  --color-border-glow: rgba(2, 132, 199, 0.2);
  --color-text: #0f172a;
  --color-text-muted: #475569;
  --color-text-dim: #94a3b8;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px -3px rgba(0, 0, 0, 0.1);
}

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

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

body {
  font-family: var(--font-main);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Fluid Typography */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-text);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2rem, 5vw, 3.25rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.75rem); }
h4 { font-size: clamp(1.1rem, 2vw, 1.35rem); }

p {
  margin-bottom: 1rem;
  color: var(--color-text-muted);
}

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

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

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

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: clamp(1rem, 3vw, 2rem);
  padding-right: clamp(1rem, 3vw, 2rem);
}

/* Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(11, 15, 25, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  transition: background var(--transition-normal), border var(--transition-normal);
}

[data-theme="light"] .site-header {
  background: rgba(255, 255, 255, 0.92);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.brand-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  box-shadow: 0 0 12px var(--color-primary-glow);
}

.brand-logo span.accent {
  color: var(--color-primary);
}

.desktop-nav {
  display: none;
  align-items: center;
  gap: 1.75rem;
}

@media (min-width: 900px) {
  .desktop-nav {
    display: flex;
  }
}

.nav-link {
  color: var(--color-text-muted);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.4rem 0.6rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
  color: var(--color-text);
  background: var(--color-surface-elevated);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), #0274b3);
  color: #ffffff;
  box-shadow: 0 4px 14px var(--color-primary-glow);
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px var(--color-primary-glow);
}

.btn-secondary {
  background: var(--color-surface-elevated);
  color: var(--color-text);
  border-color: var(--color-border);
}

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

.btn-accent {
  background: linear-gradient(135deg, var(--color-accent), #d97706);
  color: #ffffff;
}

.btn-sm {
  padding: 0.45rem 0.85rem;
  font-size: 0.85rem;
}

/* Theme Toggle Button */
.theme-toggle-btn {
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

/* Language Selector Dropdown */
.lang-selector-wrapper {
  position: relative;
}

.lang-btn {
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  padding: 0.45rem 0.75rem;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
}

.lang-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 0.5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 0.5rem;
  min-width: 150px;
  display: none;
  flex-direction: column;
  gap: 0.25rem;
  z-index: 1001;
}

.lang-dropdown.active {
  display: flex;
}

.lang-option {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  font-size: 0.85rem;
  cursor: pointer;
  border: none;
  background: transparent;
  width: 100%;
  text-align: left;
}

.lang-option:hover, .lang-option.active {
  background: var(--color-surface-elevated);
  color: var(--color-text);
}

.flag-icon {
  width: 20px;
  height: 14px;
  border-radius: 2px;
  object-fit: cover;
  box-shadow: 0 0 2px rgba(0,0,0,0.3);
}

/* Mobile Menu Toggle Button (3 Bars Animated) */
.menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 8px;
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  z-index: 1100;
}

@media (min-width: 900px) {
  .menu-toggle {
    display: none;
  }
}

.menu-bar {
  width: 22px;
  height: 2px;
  background-color: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition-normal), opacity var(--transition-normal);
}

.menu-toggle[aria-expanded="true"] .menu-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-bar:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] .menu-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Drawer Overlay */
.mobile-nav-drawer {
  position: fixed;
  inset: 0;
  top: var(--header-height);
  background: var(--color-surface);
  z-index: 1050;
  display: flex;
  flex-direction: column;
  padding: 2rem;
  gap: 1.5rem;
  transform: translateX(100%);
  transition: transform var(--transition-slow);
  overflow-y: auto;
  border-top: 1px solid var(--color-border);
}

.mobile-nav-drawer.open {
  transform: translateX(0);
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.mobile-nav-link {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text);
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--color-border);
}

/* 3D Video Hero Section */
.hero-section {
  position: relative;
  min-height: calc(90vh - var(--header-height));
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 4rem 0;
  background: var(--color-bg);
}

.hero-video-wrapper {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: 1;
}

.hero-video-element {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.45;
  filter: contrast(1.1) brightness(0.9);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 50%, rgba(11, 15, 25, 0.4) 0%, rgba(11, 15, 25, 0.95) 100%),
              linear-gradient(to bottom, rgba(11, 15, 25, 0.2) 0%, var(--color-bg) 100%);
  z-index: 2;
}

[data-theme="light"] .hero-overlay {
  background: radial-gradient(circle at 50% 50%, rgba(248, 250, 252, 0.5) 0%, rgba(248, 250, 252, 0.95) 100%),
              linear-gradient(to bottom, rgba(248, 250, 252, 0.3) 0%, var(--color-bg) 100%);
}

.hero-content {
  position: relative;
  z-index: 10;
  max-width: 820px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  background: rgba(2, 132, 199, 0.15);
  border: 1px solid rgba(2, 132, 199, 0.3);
  border-radius: var(--radius-full);
  color: var(--color-primary);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.hero-badge .pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-secondary);
  box-shadow: 0 0 8px var(--color-secondary);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.2); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.8; }
}

.hero-title {
  margin-bottom: 1.25rem;
  color: var(--color-text);
  line-height: 1.15;
}

.hero-title .highlight {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  color: var(--color-text-muted);
  margin-bottom: 2rem;
  line-height: 1.5;
}

.hero-cta-cluster {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  margin-bottom: 1.25rem;
}

.hero-microcopy {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-size: 0.85rem;
  color: var(--color-text-dim);
}

.hero-microcopy span {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

/* Sections Common */
.section {
  padding: clamp(3.5rem, 6vw, 6rem) 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 3.5rem auto;
}

.section-subtitle {
  color: var(--color-primary);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
}

.section-title {
  margin-bottom: 1rem;
}

.section-desc {
  font-size: 1.1rem;
  color: var(--color-text-muted);
}

/* Feature Grid */
.grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 2.5rem;
}

.feature-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-icon-wrapper {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-md);
  background: rgba(2, 132, 199, 0.1);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  border: 1px solid rgba(2, 132, 199, 0.2);
}

.feature-card h3 {
  margin-bottom: 0.75rem;
}

/* Blog Cards */
.blog-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  height: 100%;
}

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

.blog-card-media {
  position: relative;
  height: 200px;
  overflow: hidden;
  background: var(--color-surface-elevated);
}

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

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

.blog-category-tag {
  position: absolute;
  top: 1rem;
  left: 1rem;
  padding: 0.25rem 0.65rem;
  background: rgba(11, 15, 25, 0.85);
  backdrop-filter: blur(4px);
  border-radius: var(--radius-sm);
  color: var(--color-primary);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  border: 1px solid rgba(2, 132, 199, 0.3);
}

.blog-card-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.blog-card-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.8rem;
  color: var(--color-text-dim);
  margin-bottom: 0.75rem;
}

.blog-card-meta span {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.blog-card-title {
  font-size: 1.15rem;
  margin-bottom: 0.75rem;
  line-height: 1.35;
}

.blog-card-title a {
  color: var(--color-text);
}

.blog-card-title a:hover {
  color: var(--color-primary);
}

.blog-card-excerpt {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
  flex: 1;
}

.blog-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
  font-size: 0.85rem;
  font-weight: 600;
}

/* Social Proof & Testimonial Cards */
.testimonial-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.testimonial-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.star-rating {
  display: flex;
  gap: 0.25rem;
  color: var(--color-accent);
  margin-bottom: 1rem;
}

.testimonial-quote {
  font-style: italic;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.testimonial-avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--color-primary);
}

.author-name {
  font-weight: 700;
  color: var(--color-text);
  font-size: 0.95rem;
}

.author-role {
  font-size: 0.8rem;
  color: var(--color-text-dim);
}

/* Hardened Contact Form & Inputs */
.contact-form-container {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 4vw, 3rem);
  box-shadow: var(--shadow-md);
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.4rem;
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-family: inherit;
  font-size: 0.95rem;
  transition: all var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-glow);
}

textarea.form-control {
  min-height: 130px;
  resize: vertical;
}

/* Honeypot field - visually hidden to trap bots */
.hp-field {
  opacity: 0;
  position: absolute;
  top: 0;
  left: 0;
  height: 0;
  width: 0;
  z-index: -1;
  pointer-events: none;
}

.form-status {
  margin-top: 1rem;
  padding: 0.85rem;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  display: none;
}

.form-status.success {
  display: block;
  background: rgba(5, 150, 105, 0.15);
  border: 1px solid var(--color-secondary);
  color: var(--color-secondary);
}

.form-status.error {
  display: block;
  background: rgba(220, 38, 38, 0.15);
  border: 1px solid #dc2626;
  color: #ef4444;
}

/* Single Blog Article Layout */
.article-header {
  padding: 3.5rem 0 2rem 0;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 2.5rem;
}

.article-hero-img-wrap {
  margin: 2rem 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  max-height: 520px;
}

.article-hero-img-wrap img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.article-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

@media (min-width: 992px) {
  .article-layout {
    grid-template-columns: 1fr 340px;
  }
}

.article-content {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--color-text);
}

.article-content h2, .article-content h3, .article-content h4 {
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  color: var(--color-text);
}

.article-content p {
  margin-bottom: 1.5rem;
  color: var(--color-text-muted);
}

.article-content ul, .article-content ol {
  margin: 1rem 0 1.5rem 1.75rem;
  color: var(--color-text-muted);
}

.article-content li {
  margin-bottom: 0.5rem;
}

.article-content blockquote {
  border-left: 4px solid var(--color-primary);
  padding: 1rem 1.5rem;
  margin: 1.5rem 0;
  background: var(--color-surface-elevated);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-style: italic;
  color: var(--color-text);
}

/* Syntax Highlighted Code Blocks */
.code-block-wrapper {
  position: relative;
  margin: 1.75rem 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: #0f172a;
}

.code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 1rem;
  background: #1e293b;
  border-bottom: 1px solid #334155;
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: #94a3b8;
}

.copy-code-btn {
  background: transparent;
  border: 1px solid #475569;
  border-radius: var(--radius-sm);
  color: #cbd5e1;
  font-size: 0.75rem;
  padding: 0.25rem 0.5rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.copy-code-btn:hover {
  background: #334155;
  color: #ffffff;
}

pre.code-block {
  padding: 1.25rem;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.5;
  color: #e2e8f0;
}

/* Google AdSense Responsive Ad Containers */
.adsense-wrapper {
  margin: 1.5rem auto;
  text-align: center;
  overflow: hidden;
  max-width: 100%;
  clear: both;
}

.adsense-wrapper:empty,
.adsense-wrapper ins[data-ad-status="unfilled"],
.adsense-wrapper:has(ins[data-ad-status="unfilled"]) {
  display: none !important;
  margin: 0 !important;
  padding: 0 !important;
  height: 0 !important;
}

ins.adsbygoogle {
  background: transparent !important;
}

/* Sidebar Widgets */
.sidebar-widget {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.sidebar-widget h4 {
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--color-border);
}

/* Footer Area */
.site-footer {
  margin-top: auto;
  background: #070a12;
  border-top: 1px solid var(--color-border);
  padding: 4rem 0 2rem 0;
  color: var(--color-text-muted);
}

[data-theme="light"] .site-footer {
  background: #0f172a;
  color: #94a3b8;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2.5rem;
  margin-bottom: 3.5rem;
}

.footer-col h4 {
  color: #ffffff;
  font-size: 1.1rem;
  margin-bottom: 1.25rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer-links a {
  color: inherit;
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.85rem;
  gap: 1rem;
}

.footer-legal-links {
  display: flex;
  gap: 1.5rem;
}

/* Floating WhatsApp Widget */
.floating-whatsapp {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 990;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: #25d366;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.4);
  transition: all var(--transition-fast);
}

.floating-whatsapp:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 22px rgba(37, 211, 102, 0.6);
  color: #ffffff;
}

/* Scroll to Top Button */
.scroll-top-btn {
  position: fixed;
  bottom: 92px;
  right: 28px;
  z-index: 980;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: all var(--transition-fast);
}

.scroll-top-btn.visible {
  opacity: 1;
  pointer-events: auto;
}

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

/* Cookie Consent Banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 10000;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
  padding: 1.25rem;
  display: none;
}

.cookie-banner.active {
  display: block;
}

.cookie-content {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.cookie-text {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  max-width: 800px;
}

.cookie-actions {
  display: flex;
  gap: 0.75rem;
}

/* AI Chatbot Simulated Drawer */
.chatbot-launcher {
  position: fixed;
  bottom: 24px;
  left: 24px;
  z-index: 990;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: white;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 0.9rem;
  box-shadow: 0 4px 16px var(--color-primary-glow);
  cursor: pointer;
  border: none;
  transition: all var(--transition-fast);
}

.chatbot-launcher:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--color-primary-glow);
}

.chatbot-modal {
  position: fixed;
  bottom: 84px;
  left: 24px;
  width: 360px;
  max-width: calc(100vw - 48px);
  height: 480px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  z-index: 1000;
  display: none;
  flex-direction: column;
  overflow: hidden;
}

.chatbot-modal.open {
  display: flex;
}

.chatbot-header {
  padding: 1rem;
  background: #1e293b;
  color: white;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--color-border);
}

.chatbot-messages {
  flex: 1;
  padding: 1rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.chat-bubble {
  padding: 0.65rem 0.9rem;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  line-height: 1.4;
  max-width: 85%;
}

.chat-bubble.bot {
  background: var(--color-surface-elevated);
  align-self: flex-start;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.chat-bubble.user {
  background: var(--color-primary);
  color: white;
  align-self: flex-end;
}

.chatbot-input-row {
  display: flex;
  padding: 0.75rem;
  border-top: 1px solid var(--color-border);
  gap: 0.5rem;
  background: var(--color-surface);
}

.chatbot-input {
  flex: 1;
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.75rem;
  font-size: 0.85rem;
  color: var(--color-text);
}

/* Accessibility & Print */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .hero-video-element {
    display: none;
  }
}