/* ============================================
   PATTON TÜRKİYE — Design System
   ============================================ */

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

/* ---------- CSS Variables ---------- */
:root {
  /* Brand Colors */
  --c-primary: #003366;
  --c-primary-dark: #001f3f;
  --c-primary-light: #004a99;
  --c-accent: #e8a020;
  --c-accent-light: #f0b84d;

  /* Neutrals */
  --c-white: #ffffff;
  --c-offwhite: #f5f7fa;
  --c-gray-100: #eef1f5;
  --c-gray-200: #dde2ea;
  --c-gray-300: #b8c0cc;
  --c-gray-500: #6b7a8d;
  --c-gray-700: #3a4553;
  --c-gray-900: #1a2332;

  /* Semantic */
  --c-success: #10b981;
  --c-info: #3b82f6;
  --c-bg: var(--c-offwhite);
  --c-text: var(--c-gray-900);
  --c-text-muted: var(--c-gray-500);

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --fs-xs: 0.75rem;
  --fs-sm: 0.875rem;
  --fs-base: 1rem;
  --fs-md: 1.125rem;
  --fs-lg: 1.25rem;
  --fs-xl: 1.5rem;
  --fs-2xl: 2rem;
  --fs-3xl: 2.5rem;
  --fs-4xl: 3.25rem;

  /* Spacing */
  --sp-1: 0.25rem;
  --sp-2: 0.5rem;
  --sp-3: 0.75rem;
  --sp-4: 1rem;
  --sp-5: 1.25rem;
  --sp-6: 1.5rem;
  --sp-8: 2rem;
  --sp-10: 2.5rem;
  --sp-12: 3rem;
  --sp-16: 4rem;
  --sp-20: 5rem;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.15);

  /* Transitions */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --transition: 0.3s var(--ease);

  /* Layout */
  --max-width: 1280px;
  --header-height: 72px;
}

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

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

body {
  font-family: var(--font-family);
  font-size: var(--fs-base);
  line-height: 1.7;
  color: var(--c-text);
  background: var(--c-bg);
  overflow-x: hidden;
}

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

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

a:hover {
  color: var(--c-accent);
}

ul,
ol {
  list-style: none;
}

/* ---------- Container ---------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--sp-6);
}

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(0, 31, 63, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  height: var(--header-height);
  transition: background var(--transition), box-shadow var(--transition);
}

.site-header.scrolled {
  background: rgba(0, 31, 63, 0.98);
  box-shadow: var(--shadow-lg);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  font-weight: 800;
  font-size: var(--fs-xl);
  color: var(--c-white);
  letter-spacing: -0.5px;
}

.logo .brand-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--c-accent);
  border-radius: 50%;
  margin-left: 2px;
}

.logo span {
  color: var(--c-accent);
  font-weight: 600;
}

/* Navigation */
.nav-main {
  display: flex;
  align-items: center;
  gap: var(--sp-1);
}

.nav-main a {
  position: relative;
  color: rgba(255, 255, 255, 0.8);
  font-size: var(--fs-sm);
  font-weight: 500;
  padding: var(--sp-2) var(--sp-4);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.nav-main a:hover,
.nav-main a.active {
  color: var(--c-white);
  background: rgba(255, 255, 255, 0.1);
}

.nav-main a.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  background: var(--c-accent);
  border-radius: 2px;
}

/* Mobile menu button */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--sp-2);
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--c-white);
  margin: 5px 0;
  border-radius: 2px;
  transition: all var(--transition);
}

.menu-toggle.open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.open span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--c-primary-dark) 0%, var(--c-primary) 50%, var(--c-primary-light) 100%);
  overflow: hidden;
  padding-top: var(--header-height);
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(232, 160, 32, 0.1) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(59, 130, 246, 0.08) 0%, transparent 50%);
}

.hero-grid-pattern {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero-content {
  position: relative;
  text-align: center;
  color: var(--c-white);
  max-width: 800px;
  padding: var(--sp-8);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(8px);
  padding: var(--sp-2) var(--sp-5);
  border-radius: var(--radius-full);
  font-size: var(--fs-sm);
  font-weight: 500;
  margin-bottom: var(--sp-8);
  color: rgba(255, 255, 255, 0.9);
}

.hero-badge .dot {
  width: 6px;
  height: 6px;
  background: var(--c-accent);
  border-radius: 50%;
  animation: pulse 2s ease infinite;
}

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }

  50% {
    opacity: 0.5;
    transform: scale(1.5);
  }
}

.hero h1 {
  font-size: var(--fs-4xl);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: var(--sp-6);
}

.hero h1 .highlight {
  background: linear-gradient(135deg, var(--c-accent), var(--c-accent-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: var(--fs-lg);
  color: rgba(255, 255, 255, 0.7);
  max-width: 600px;
  margin: 0 auto var(--sp-10);
  line-height: 1.8;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-3) var(--sp-8);
  font-family: var(--font-family);
  font-size: var(--fs-sm);
  font-weight: 600;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--c-accent);
  color: var(--c-primary-dark);
  box-shadow: 0 4px 16px rgba(232, 160, 32, 0.3);
}

.btn-primary:hover {
  background: var(--c-accent-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(232, 160, 32, 0.4);
  color: var(--c-primary-dark);
}

.btn-outline {
  background: transparent;
  color: var(--c-white);
  border: 1.5px solid rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.5);
  color: var(--c-white);
}

.btn-outline-dark {
  background: transparent;
  color: var(--c-primary);
  border: 1.5px solid var(--c-primary);
}

.btn-outline-dark:hover {
  background: var(--c-primary);
  color: var(--c-white);
}

.hero-buttons {
  display: flex;
  gap: var(--sp-4);
  justify-content: center;
  flex-wrap: wrap;
}

/* ---------- Sections ---------- */
.section {
  padding: var(--sp-20) 0;
}

.section-alt {
  background: var(--c-white);
}

.section-dark {
  background: var(--c-primary-dark);
  color: var(--c-white);
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto var(--sp-16);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--fs-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--c-accent);
  margin-bottom: var(--sp-4);
}

.section-label::before,
.section-label::after {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--c-accent);
  opacity: 0.5;
}

.section-header h2 {
  font-size: var(--fs-3xl);
  font-weight: 800;
  letter-spacing: -1px;
  line-height: 1.2;
  margin-bottom: var(--sp-4);
}

.section-header p {
  color: var(--c-text-muted);
  font-size: var(--fs-md);
  line-height: 1.8;
}

.section-dark .section-header p {
  color: rgba(255, 255, 255, 0.65);
}

/* ---------- Cards ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: var(--sp-8);
}

.card-grid-3 {
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}

.card {
  background: var(--c-white);
  border: 1px solid var(--c-gray-200);
  border-radius: var(--radius-md);
  padding: var(--sp-8);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--c-primary), var(--c-accent));
  opacity: 0;
  transition: opacity var(--transition);
}

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

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

.card-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--c-primary), var(--c-primary-light));
  border-radius: var(--radius-sm);
  margin-bottom: var(--sp-5);
  font-size: 1.5rem;
  color: var(--c-white);
}

.card h3 {
  font-size: var(--fs-lg);
  font-weight: 700;
  margin-bottom: var(--sp-3);
  color: var(--c-gray-900);
}

.card p {
  color: var(--c-text-muted);
  font-size: var(--fs-sm);
  line-height: 1.7;
  margin-bottom: var(--sp-4);
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--c-primary);
}

.card-link::after {
  content: '→';
  transition: transform var(--transition);
}

.card:hover .card-link::after {
  transform: translateX(4px);
}

/* ---------- Stats / Counters ---------- */
.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--sp-8);
  text-align: center;
  padding: var(--sp-12) 0;
}

.stat-item h3 {
  font-size: var(--fs-3xl);
  font-weight: 900;
  color: var(--c-accent);
  margin-bottom: var(--sp-2);
}

.stat-item p {
  font-size: var(--fs-sm);
  color: rgba(255, 255, 255, 0.65);
  font-weight: 500;
}

/* ---------- Product Table ---------- */
.product-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  margin: var(--sp-8) 0;
}

.product-table thead {
  background: var(--c-primary);
  color: var(--c-white);
}

.product-table th {
  padding: var(--sp-4) var(--sp-6);
  text-align: left;
  font-size: var(--fs-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.product-table td {
  padding: var(--sp-4) var(--sp-6);
  font-size: var(--fs-sm);
  border-bottom: 1px solid var(--c-gray-100);
  background: var(--c-white);
}

.product-table tbody tr {
  transition: background var(--transition);
}

.product-table tbody tr:hover td {
  background: var(--c-gray-100);
}

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

.product-table a {
  color: var(--c-primary-light);
  font-weight: 500;
}

.product-table a:hover {
  color: var(--c-accent);
  text-decoration: underline;
}

/* ---------- Page Header (sub-pages) ---------- */
.page-header {
  background: linear-gradient(135deg, var(--c-primary-dark) 0%, var(--c-primary) 100%);
  padding: calc(var(--header-height) + var(--sp-16)) 0 var(--sp-16);
  color: var(--c-white);
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  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;
}

.page-header .container {
  position: relative;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--fs-sm);
  margin-bottom: var(--sp-6);
}

.breadcrumb a {
  color: rgba(255, 255, 255, 0.6);
}

.breadcrumb a:hover {
  color: var(--c-white);
}

.breadcrumb span {
  color: rgba(255, 255, 255, 0.3);
}

.breadcrumb .current {
  color: var(--c-accent);
}

.page-header h1 {
  font-size: var(--fs-3xl);
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: var(--sp-4);
}

.page-header p {
  max-width: 640px;
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--fs-md);
  line-height: 1.8;
}

/* ---------- Features List ---------- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--sp-6);
}

.feature-item {
  display: flex;
  gap: var(--sp-4);
  padding: var(--sp-6);
  background: var(--c-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--c-gray-200);
  transition: all var(--transition);
}

.feature-item:hover {
  box-shadow: var(--shadow-md);
  border-color: transparent;
}

.feature-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--c-gray-100);
  border-radius: var(--radius-sm);
  font-size: 1.25rem;
  color: var(--c-primary);
}

.feature-item h4 {
  font-size: var(--fs-base);
  font-weight: 600;
  margin-bottom: var(--sp-1);
}

.feature-item p {
  font-size: var(--fs-sm);
  color: var(--c-text-muted);
  line-height: 1.6;
}

/* ---------- CTA Section ---------- */
.cta-section {
  background: linear-gradient(135deg, var(--c-primary-dark), var(--c-primary));
  padding: var(--sp-16) 0;
  text-align: center;
  color: var(--c-white);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 50%, rgba(232, 160, 32, 0.08) 0%, transparent 60%);
}

.cta-section .container {
  position: relative;
}

.cta-section h2 {
  font-size: var(--fs-2xl);
  font-weight: 800;
  margin-bottom: var(--sp-4);
}

.cta-section p {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: var(--sp-8);
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

/* ---------- Contact Form ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-12);
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: var(--sp-6);
}

.contact-info-item {
  display: flex;
  gap: var(--sp-4);
  align-items: flex-start;
}

.contact-info-item .icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--c-primary), var(--c-primary-light));
  border-radius: var(--radius-sm);
  font-size: 1.25rem;
}

.contact-info-item h4 {
  font-size: var(--fs-base);
  font-weight: 600;
  margin-bottom: var(--sp-1);
}

.contact-info-item p,
.contact-info-item a {
  font-size: var(--fs-sm);
  color: var(--c-text-muted);
}

.contact-form {
  background: var(--c-white);
  border-radius: var(--radius-md);
  padding: var(--sp-10);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--c-gray-200);
}

.zoho-form-wrapper {
  overflow: hidden;
}

.zoho-form-wrapper iframe {
  display: block;
  border-radius: var(--radius-sm);
  max-width: 100%;
}

@media (max-width: 768px) {
  .zoho-form-wrapper {
    padding: var(--sp-4);
  }

  .zoho-form-wrapper h2 {
    font-size: var(--fs-lg) !important;
    margin-bottom: var(--sp-4) !important;
  }
}

.form-group {
  margin-bottom: var(--sp-5);
}

.form-group label {
  display: block;
  font-size: var(--fs-sm);
  font-weight: 600;
  margin-bottom: var(--sp-2);
  color: var(--c-gray-700);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: var(--sp-3) var(--sp-4);
  font-family: var(--font-family);
  font-size: var(--fs-sm);
  border: 1.5px solid var(--c-gray-200);
  border-radius: var(--radius-sm);
  background: var(--c-offwhite);
  transition: all var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--c-primary);
  box-shadow: 0 0 0 3px rgba(0, 51, 102, 0.1);
  background: var(--c-white);
}

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

/* ---------- Footer ---------- */
.site-footer {
  background: var(--c-gray-900);
  color: rgba(255, 255, 255, 0.7);
  padding: var(--sp-16) 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--sp-12);
  padding-bottom: var(--sp-12);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-about .logo {
  margin-bottom: var(--sp-4);
}

.footer-about p {
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.55);
}

.footer-col h4 {
  color: var(--c-white);
  font-size: var(--fs-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: var(--sp-5);
}

.footer-col a {
  display: block;
  color: rgba(255, 255, 255, 0.55);
  font-size: var(--fs-sm);
  padding: var(--sp-1) 0;
  transition: color var(--transition);
}

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

.footer-bottom {
  padding: var(--sp-6) 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--fs-xs);
  color: rgba(255, 255, 255, 0.4);
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.4);
}

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

/* ---------- Prose / Content ---------- */
.prose {
  max-width: 800px;
}

.prose h2 {
  font-size: var(--fs-2xl);
  font-weight: 700;
  margin: var(--sp-10) 0 var(--sp-4);
  color: var(--c-gray-900);
}

.prose h3 {
  font-size: var(--fs-xl);
  font-weight: 600;
  margin: var(--sp-8) 0 var(--sp-3);
  color: var(--c-gray-700);
}

.prose p {
  margin-bottom: var(--sp-5);
  color: var(--c-gray-700);
  line-height: 1.85;
}

.prose ul {
  margin: var(--sp-4) 0 var(--sp-6);
  padding-left: var(--sp-6);
}

.prose ul li {
  position: relative;
  padding-left: var(--sp-5);
  margin-bottom: var(--sp-3);
  color: var(--c-gray-700);
  line-height: 1.7;
}

.prose ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  background: var(--c-accent);
  border-radius: 50%;
}

/* ---------- Glassmorphism ---------- */
.glass {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: var(--radius-md);
}

/* ---------- Solution Cards ---------- */
.solution-card {
  background: var(--c-white);
  border-radius: var(--radius-md);
  padding: var(--sp-8);
  border: 1px solid var(--c-gray-200);
  display: flex;
  gap: var(--sp-6);
  transition: all var(--transition);
}

.solution-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.solution-card .sol-icon {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--c-primary), var(--c-primary-light));
  border-radius: var(--radius-sm);
  font-size: 1.5rem;
}

.solution-card h3 {
  font-size: var(--fs-lg);
  font-weight: 700;
  margin-bottom: var(--sp-2);
}

.solution-card p {
  font-size: var(--fs-sm);
  color: var(--c-text-muted);
}

/* ---------- Map container ---------- */
.map-container {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  margin-top: var(--sp-8);
}

.map-container iframe {
  width: 100%;
  height: 400px;
  border: none;
}

/* ---------- Fade-in Animation ---------- */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

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

/* Fallback: show content if JS is disabled or observer fails */
@media (prefers-reduced-motion: reduce) {
  .fade-in {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-8);
  }
}

@media (max-width: 768px) {
  :root {
    --fs-4xl: 2.25rem;
    --fs-3xl: 1.85rem;
    --fs-2xl: 1.5rem;
  }

  .hero {
    min-height: 70vh;
  }

  .section {
    padding: var(--sp-12) 0;
  }

  .menu-toggle {
    display: block;
    z-index: 1001;
  }

  .nav-main {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    height: calc(100vh - var(--header-height));
    height: calc(100dvh - var(--header-height));
    background: #001a33;
    background-color: #001a33;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    padding: var(--sp-8);
    gap: var(--sp-2);
    transform: translateX(100%);
    transition: transform var(--transition);
    z-index: 1000;
    overflow-y: auto;
  }

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

  .nav-main a {
    font-size: var(--fs-md);
    padding: var(--sp-3) var(--sp-4);
    width: 100%;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .nav-main a:last-child {
    border-bottom: none;
  }

  .card-grid,
  .card-grid-3 {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--sp-8);
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--sp-3);
    text-align: center;
  }

  .stats-row {
    grid-template-columns: 1fr 1fr;
  }

  .solution-card {
    flex-direction: column;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .product-table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  /* Table scroll indicator wrapper */
  .product-table-wrapper {
    position: relative;
  }

  .product-table-wrapper::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    width: 32px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.9));
    pointer-events: none;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
  }

  /* Page header mobile padding */
  .page-header {
    padding: calc(var(--header-height) + var(--sp-8)) 0 var(--sp-10);
  }

  .page-header h1 {
    font-size: var(--fs-2xl);
  }

  /* Logo mobile spacing */
  .header-inner {
    gap: var(--sp-2);
  }

  .logo {
    font-size: 1.15rem;
  }
}

@media (max-width: 480px) {
  :root {
    --fs-4xl: 1.85rem;
    --fs-3xl: 1.5rem;
  }

  .container {
    padding: 0 var(--sp-4);
  }

  .stats-row {
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-4);
  }

  .stat-item h3 {
    font-size: var(--fs-2xl);
  }

  /* Hero section mobile optimization */
  .hero {
    min-height: 60vh;
    padding: calc(var(--header-height) + var(--sp-8)) 0 var(--sp-8);
  }

  .page-header {
    padding: calc(var(--header-height) + var(--sp-6)) 0 var(--sp-8);
  }
}

/* ---------- Utility ---------- */
.text-center {
  text-align: center;
}

.mt-4 {
  margin-top: var(--sp-4);
}

.mt-8 {
  margin-top: var(--sp-8);
}

.mt-12 {
  margin-top: var(--sp-12);
}

.mb-4 {
  margin-bottom: var(--sp-4);
}

.mb-8 {
  margin-bottom: var(--sp-8);
}

.gap-4 {
  gap: var(--sp-4);
}

.flex {
  display: flex;
}

.flex-wrap {
  flex-wrap: wrap;
}

.items-center {
  align-items: center;
}