/* ============================================================
   PRECISION ELECTRONIC COMPONENTS MANUFACTURER
   Design System & Core Styles
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* --- CSS Variables / Design Tokens --- */
:root {
  --clr-primary: #0A1629;
  --clr-primary-light: #132440;
  --clr-accent-blue: #00B4D8;
  --clr-accent-blue-dark: #0096B4;
  --clr-accent-blue-glow: rgba(0, 180, 216, 0.35);
  --clr-accent-gold: #FFB703;
  --clr-accent-gold-dark: #E6A500;
  --clr-accent-gold-glow: rgba(255, 183, 3, 0.35);
  --clr-dark: #1F2937;
  --clr-mid: #64748B;
  --clr-light: #F8FAFC;
  --clr-white: #FFFFFF;
  --clr-border: rgba(100, 116, 139, 0.18);
  --clr-border-light: rgba(100, 116, 139, 0.08);
  --clr-glass: rgba(255, 255, 255, 0.04);
  --clr-glass-border: rgba(255, 255, 255, 0.06);

  --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  --shadow-sm: 0 1px 3px rgba(10, 22, 41, 0.06), 0 1px 2px rgba(10, 22, 41, 0.04);
  --shadow-md: 0 4px 16px rgba(10, 22, 41, 0.07), 0 2px 6px rgba(10, 22, 41, 0.05);
  --shadow-lg: 0 12px 40px rgba(10, 22, 41, 0.10), 0 4px 12px rgba(10, 22, 41, 0.06);
  --shadow-xl: 0 24px 64px rgba(10, 22, 41, 0.14), 0 8px 24px rgba(10, 22, 41, 0.08);
  --shadow-glow-blue: 0 0 24px rgba(0, 180, 216, 0.25);
  --shadow-glow-gold: 0 0 24px rgba(255, 183, 3, 0.25);

  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 6px;

  --transition-fast: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 280ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--clr-dark);
  background: var(--clr-white);
  overflow-x: hidden;
}

::selection {
  background: var(--clr-accent-blue);
  color: var(--clr-white);
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.5px;
  color: var(--clr-primary);
}

h1 { font-size: clamp(2.25rem, 5vw, 3rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.5rem); }
h4 { font-size: 1.125rem; }

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--clr-primary);
  margin-bottom: 0.5rem;
}

.section-subtitle {
  font-size: 1rem;
  color: var(--clr-mid);
  font-weight: 400;
  max-width: 600px;
  margin: 0 auto;
}

.section-label {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--clr-accent-blue);
  margin-bottom: 0.75rem;
}

.text-gradient {
  background: linear-gradient(135deg, var(--clr-accent-blue), var(--clr-accent-gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* --- Layout Utilities --- */
.container-main {
  max-width: 1280px;
  margin: 0 auto;
  padding-left: 1rem;
  padding-right: 1rem;
}
@media (min-width: 768px) {
  .container-main { padding-left: 2rem; padding-right: 2rem; }
}

.section-padding {
  padding-top: 3rem;
  padding-bottom: 3rem;
}
@media (min-width: 768px) {
  .section-padding { padding-top: 5rem; padding-bottom: 5rem; }
}

/* --- Header / Navigation --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(10, 22, 41, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: background var(--transition-base), box-shadow var(--transition-base);
}

.site-header.scrolled {
  background: rgba(10, 22, 41, 0.97);
  box-shadow: 0 1px 20px rgba(0, 0, 0, 0.25);
}

.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
@media (min-width: 768px) {
  .header-inner { padding: 0 2rem; }
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  text-decoration: none;
  color: var(--clr-white);
  font-weight: 800;
  font-size: 1rem;
  letter-spacing: -0.3px;
  white-space: nowrap;
}

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--clr-accent-blue), var(--clr-accent-gold));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 900;
  color: var(--clr-primary);
  flex-shrink: 0;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}
.logo-text .brand {
  font-size: 0.9375rem;
  font-weight: 800;
}
.logo-text .tagline {
  font-size: 0.625rem;
  font-weight: 400;
  color: var(--clr-mid);
  letter-spacing: 0.5px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.125rem;
  list-style: none;
}

.nav-links a {
  display: block;
  padding: 0.5rem 0.875rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.78);
  text-decoration: none;
  letter-spacing: 0.2px;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
  white-space: nowrap;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--clr-white);
  background: rgba(255, 255, 255, 0.06);
}

.nav-cta {
  margin-left: 0.5rem;
}

/* Mobile Menu */
.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 1001;
}

.mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--clr-white);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.mobile-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.mobile-toggle.active span:nth-child(2) {
  opacity: 0;
}
.mobile-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 1023px) {
  .mobile-toggle { display: flex; }
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 88px 1.5rem 2rem;
    background: rgba(10, 22, 41, 0.98);
    backdrop-filter: blur(20px);
    transition: right var(--transition-base);
    overflow-y: auto;
  }
  .nav-links.active { right: 0; }
  .nav-links a {
    width: 100%;
    padding: 0.75rem 0;
    font-size: 0.9375rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 0;
  }
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.2px;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity var(--transition-fast);
  pointer-events: none;
}

.btn-primary {
  background: var(--clr-accent-blue);
  color: var(--clr-white);
  border-color: var(--clr-accent-blue);
}

.btn-primary:hover {
  background: var(--clr-accent-blue-dark);
  border-color: var(--clr-accent-blue-dark);
  box-shadow: var(--shadow-glow-blue);
  transform: translateY(-1px);
}

.btn-secondary {
  background: transparent;
  color: var(--clr-white);
  border-color: rgba(255, 255, 255, 0.25);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.45);
  box-shadow: 0 0 20px rgba(255, 255, 255, 0.08);
  transform: translateY(-1px);
}

.btn-gold {
  background: var(--clr-accent-gold);
  color: var(--clr-primary);
  border-color: var(--clr-accent-gold);
}

.btn-gold:hover {
  background: var(--clr-accent-gold-dark);
  border-color: var(--clr-accent-gold-dark);
  box-shadow: var(--shadow-glow-gold);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--clr-primary);
  border-color: var(--clr-border);
}

.btn-outline:hover {
  background: var(--clr-primary);
  color: var(--clr-white);
  border-color: var(--clr-primary);
  transform: translateY(-1px);
}

.btn-lg {
  padding: 0.875rem 2.25rem;
  font-size: 0.9375rem;
}

.btn-sm {
  padding: 0.5rem 1.25rem;
  font-size: 0.8125rem;
}

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

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
  border-color: var(--clr-border);
}

.card-body {
  padding: 1.5rem;
}

.card-line {
  background: var(--clr-white);
  border: 1px solid var(--clr-border-light);
  border-radius: var(--radius-sm);
  padding: 1.5rem;
  transition: all var(--transition-base);
}

.card-line:hover {
  border-color: var(--clr-accent-blue);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

/* --- Badge / Tag --- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  border-radius: var(--radius-sm);
}

.badge-blue {
  background: rgba(0, 180, 216, 0.1);
  color: var(--clr-accent-blue);
}

.badge-gold {
  background: rgba(255, 183, 3, 0.1);
  color: var(--clr-accent-gold-dark);
}

/* --- Form Elements --- */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--clr-dark);
  margin-bottom: 0.375rem;
  letter-spacing: 0.2px;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--clr-dark);
  background: var(--clr-light);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  outline: none;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--clr-accent-blue);
  box-shadow: 0 0 0 3px rgba(0, 180, 216, 0.1);
  background: var(--clr-white);
}

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

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--clr-mid);
  opacity: 0.7;
}

/* --- Hero / Banner --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--clr-primary);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 30% 50%, rgba(0, 180, 216, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 70% 30%, rgba(255, 183, 3, 0.05) 0%, transparent 50%);
  pointer-events: none;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.hero-particle {
  position: absolute;
  width: 2px;
  height: 2px;
  background: var(--clr-accent-blue);
  border-radius: 50%;
  animation: float-particle 8s ease-in-out infinite;
  opacity: 0.5;
  pointer-events: none;
}

/* Page Hero (inner pages) */
.page-hero {
  position: relative;
  padding: 120px 0 64px;
  background: var(--clr-primary);
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 50% 50% at 50% 50%, rgba(0, 180, 216, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.page-hero-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 0.75rem;
}

.page-hero-breadcrumb a {
  color: rgba(255, 255, 255, 0.55);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.page-hero-breadcrumb a:hover {
  color: var(--clr-accent-blue);
}

.page-hero-breadcrumb .sep {
  color: rgba(255, 255, 255, 0.3);
}

.page-hero-title {
  font-size: clamp(2rem, 5vw, 2.75rem);
  font-weight: 800;
  color: var(--clr-white);
  letter-spacing: -0.5px;
  margin-bottom: 0.75rem;
}

.page-hero-desc {
  font-size: 1.0625rem;
  color: rgba(255, 255, 255, 0.6);
  max-width: 560px;
  line-height: 1.7;
}

/* --- Section Headers --- */
.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

@media (min-width: 768px) {
  .section-header { margin-bottom: 4rem; }
}

.section-header-left {
  text-align: left;
  margin-bottom: 2.5rem;
}

/* --- Stats / Numbers --- */
.stat-number {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--clr-accent-blue);
  line-height: 1;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--clr-mid);
  margin-top: 0.5rem;
}

/* --- Footer --- */
.site-footer {
  background: var(--clr-primary);
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.875rem;
  line-height: 1.7;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}
@media (min-width: 640px) {
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .footer-grid { grid-template-columns: 1.5fr 1fr 1fr 1fr; }
}

.footer-heading {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--clr-white);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.55);
  text-decoration: none;
  transition: color var(--transition-fast);
  font-size: 0.875rem;
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 1.5rem 0;
  margin-top: 3rem;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.4);
}

/* --- Floating Customer Service --- */
.float-chat {
  position: fixed;
  right: 20px;
  bottom: 120px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.float-chat-btn {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: var(--clr-white);
  border: 1px solid var(--clr-border);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  box-shadow: var(--shadow-md);
}

.float-chat-btn:hover {
  background: var(--clr-primary);
  border-color: var(--clr-primary);
  box-shadow: var(--shadow-lg);
}

.float-chat-btn:hover svg {
  stroke: var(--clr-white);
}

.float-chat-btn svg {
  width: 20px;
  height: 20px;
  stroke: var(--clr-dark);
  fill: none;
  stroke-width: 2;
  transition: stroke var(--transition-fast);
}

.float-chat-tooltip {
  position: absolute;
  right: 58px;
  background: var(--clr-primary);
  color: var(--clr-white);
  padding: 0.5rem 0.875rem;
  font-size: 0.8125rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
  transform: translateX(6px);
}

.float-chat-btn:hover .float-chat-tooltip {
  opacity: 1;
  transform: translateX(0);
}

.float-chat-qr {
  position: absolute;
  right: 58px;
  bottom: 0;
  width: 160px;
  height: 160px;
  background: var(--clr-white);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 12px;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
  transform: translateX(6px);
}

.float-chat-qr.show {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(0);
}

.float-chat-qr-placeholder {
  width: 100%;
  height: 100%;
  background: var(--clr-light);
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.float-chat-qr-placeholder svg {
  width: 48px;
  height: 48px;
  color: var(--clr-mid);
}

.float-chat-qr-placeholder span {
  font-size: 0.625rem;
  color: var(--clr-mid);
  text-align: center;
}

.float-back-top {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: var(--clr-primary);
  border: 1px solid var(--clr-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-md);
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
}

.float-back-top.show {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.float-back-top:hover {
  background: var(--clr-accent-blue);
  border-color: var(--clr-accent-blue);
  box-shadow: var(--shadow-glow-blue);
}

.float-back-top svg {
  width: 18px;
  height: 18px;
  stroke: var(--clr-white);
  fill: none;
  stroke-width: 2.5;
}

/* --- Animations --- */
@keyframes float-particle {
  0%, 100% { transform: translateY(0) scale(1); opacity: 0.5; }
  33% { transform: translateY(-30px) scale(1.5); opacity: 0.8; }
  66% { transform: translateY(-15px) scale(0.8); opacity: 0.3; }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.animate-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.animate-in-delay-1 { transition-delay: 0.1s; }
.animate-in-delay-2 { transition-delay: 0.2s; }
.animate-in-delay-3 { transition-delay: 0.3s; }
.animate-in-delay-4 { transition-delay: 0.4s; }
.animate-in-delay-5 { transition-delay: 0.5s; }

/* Stagger children */
.stagger-children > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.stagger-children.visible > *:nth-child(1) { transition-delay: 0.05s; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(2) { transition-delay: 0.12s; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(3) { transition-delay: 0.19s; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(4) { transition-delay: 0.26s; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(5) { transition-delay: 0.33s; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(6) { transition-delay: 0.40s; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(7) { transition-delay: 0.47s; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(8) { transition-delay: 0.54s; opacity: 1; transform: translateY(0); }

/* --- Page-specific Styles --- */

/* Products Grid */
.products-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
@media (min-width: 640px) {
  .products-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .products-grid { grid-template-columns: repeat(3, 1fr); }
}

.product-card-img {
  aspect-ratio: 4/3;
  background: var(--clr-light);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.product-card-img svg {
  width: 64px;
  height: 64px;
  color: var(--clr-mid);
  opacity: 0.3;
  transition: all var(--transition-base);
}

.product-card:hover .product-card-img svg {
  opacity: 0.5;
  transform: scale(1.05);
}

.product-card-overlay {
  position: absolute;
  inset: 0;
  background: rgba(10, 22, 41, 0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.product-card:hover .product-card-overlay {
  opacity: 1;
}

/* Certificates Grid */
.cert-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
@media (min-width: 640px) {
  .cert-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .cert-grid { grid-template-columns: repeat(3, 1fr); }
}

/* Cases Grid */
.cases-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
@media (min-width: 768px) {
  .cases-grid { grid-template-columns: repeat(2, 1fr); }
}

/* News Grid */
.news-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
@media (min-width: 640px) {
  .news-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .news-grid { grid-template-columns: repeat(3, 1fr); }
}

.news-card-img {
  aspect-ratio: 16/10;
  background: var(--clr-light);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.news-card-img svg {
  width: 48px;
  height: 48px;
  color: var(--clr-mid);
  opacity: 0.25;
}

/* Article content typography */
.article-content {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--clr-dark);
}

.article-content p {
  margin-bottom: 1.25rem;
}

.article-content h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--clr-primary);
  margin: 2.5rem 0 1rem;
}

.article-content h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--clr-primary);
  margin: 2rem 0 0.75rem;
}

.article-content ul,
.article-content ol {
  margin: 1rem 0 1.5rem 1.5rem;
}

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

.article-content blockquote {
  border-left: 3px solid var(--clr-accent-blue);
  padding: 1rem 1.5rem;
  margin: 1.5rem 0;
  background: var(--clr-light);
  font-style: italic;
  color: var(--clr-mid);
}

.article-content img {
  max-width: 100%;
  border-radius: var(--radius-md);
  margin: 1.5rem 0;
}

/* Specs table */
.specs-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.specs-table th,
.specs-table td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--clr-border-light);
}

.specs-table th {
  background: var(--clr-light);
  font-weight: 600;
  color: var(--clr-dark);
  width: 180px;
  letter-spacing: 0.3px;
}

.specs-table td {
  color: var(--clr-dark);
}

/* Contact Info Cards */
.contact-info-card {
  display: flex;
  gap: 1rem;
  padding: 1.25rem;
  border: 1px solid var(--clr-border-light);
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
}

.contact-info-card:hover {
  border-color: var(--clr-accent-blue);
  box-shadow: var(--shadow-sm);
}

.contact-info-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(0, 180, 216, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-info-icon svg {
  width: 20px;
  height: 20px;
  color: var(--clr-accent-blue);
}

/* Timeline */
.timeline {
  position: relative;
  padding-left: 2rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 4px;
  bottom: 4px;
  width: 2px;
  background: var(--clr-border);
}

.timeline-item {
  position: relative;
  margin-bottom: 2rem;
}

.timeline-dot {
  position: absolute;
  left: -2rem;
  top: 4px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--clr-accent-blue);
  border: 3px solid var(--clr-white);
  box-shadow: 0 0 0 3px rgba(0, 180, 216, 0.2);
}

/* Filter tabs */
.filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.filter-tab {
  padding: 0.5rem 1.25rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--clr-mid);
  background: transparent;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: var(--font-body);
  letter-spacing: 0.2px;
}

.filter-tab:hover {
  color: var(--clr-primary);
  border-color: var(--clr-primary);
}

.filter-tab.active {
  background: var(--clr-primary);
  color: var(--clr-white);
  border-color: var(--clr-primary);
}

/* Map placeholder */
.map-placeholder {
  width: 100%;
  height: 360px;
  background: var(--clr-light);
  border-radius: var(--radius-md);
  border: 1px solid var(--clr-border-light);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 0.5rem;
  color: var(--clr-mid);
}

.map-placeholder svg {
  width: 48px;
  height: 48px;
  opacity: 0.3;
}

/* Inquiry Form Sidebar */
.inquiry-sidebar {
  background: var(--clr-light);
  border: 1px solid var(--clr-border-light);
  border-radius: var(--radius-md);
  padding: 2rem;
}

/* Process steps */
.process-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}
@media (min-width: 640px) {
  .process-steps { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .process-steps { grid-template-columns: repeat(4, 1fr); }
}

.process-step {
  text-align: center;
  position: relative;
}

.process-step-num {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--clr-accent-blue), var(--clr-accent-blue-dark));
  color: var(--clr-white);
  font-size: 1.25rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  box-shadow: var(--shadow-glow-blue);
}

/* Divider */
.divider {
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--clr-accent-blue), var(--clr-accent-gold));
  border-radius: 2px;
}

/* Page loader */
.page-loader {
  position: fixed;
  inset: 0;
  background: var(--clr-primary);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.4s ease, visibility 0.4s ease;
}

.page-loader.hidden {
  opacity: 0;
  visibility: hidden;
}

.loader-spinner {
  width: 40px;
  height: 40px;
  border: 2px solid rgba(255, 255, 255, 0.1);
  border-top-color: var(--clr-accent-blue);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* Glass card */
.glass-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-md);
}

/* Counter animation */
.counter-digit {
  font-variant-numeric: tabular-nums;
}

/* Responsive video / iframe wrapper */
.video-wrapper {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: var(--radius-md);
}

.video-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* Skeleton loading */
.skeleton {
  background: linear-gradient(90deg, var(--clr-light) 25%, #e2e8f0 50%, var(--clr-light) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  border-radius: var(--radius-sm);
}

/* Overflow scroll utilities */
.scrollbar-thin {
  scrollbar-width: thin;
  scrollbar-color: var(--clr-border) transparent;
}

.scrollbar-thin::-webkit-scrollbar {
  width: 4px;
}

.scrollbar-thin::-webkit-scrollbar-track {
  background: transparent;
}

.scrollbar-thin::-webkit-scrollbar-thumb {
  background: var(--clr-border);
  border-radius: 2px;
}