/* ========================================
   KI-Sum AI - Main Stylesheet
   ======================================== */

/* CSS Variables */
:root {
  --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --accent-color: #00f5ff;
  --secondary-accent: #b388ff;
  --success-color: #10b981;
  --warning-color: #fb923c;
  --error-color: #ef4444;
  --dark-bg: #0a0e27;
  --card-bg: rgba(16, 20, 47, 0.8);
  --text-primary: #ffffff;
  --text-secondary: #a8b2d1;
  --border-color: rgba(255, 255, 255, 0.1);
  --border-glow: rgba(0, 245, 255, 0.5);
  --header-height: 70px;
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --transition-speed: 0.3s;
  --border-radius: 20px;
  --border-radius-small: 10px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  background: var(--dark-bg);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }

p {
  margin-bottom: 1rem;
}

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

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

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Header */
header {
  position: fixed;
  top: 0;
  width: 100%;
  height: var(--header-height);
  background: rgba(10, 14, 39, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  transition: all var(--transition-speed);
}

header.scrolled {
  background: rgba(10, 14, 39, 0.98);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

nav {
  max-width: 1200px;
  height: 100%;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand {
  display: flex;
  align-items: center;
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-primary);
  text-decoration: none;
}

.logo {
  height: 40px;
  width: auto;
}

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: all var(--transition-speed);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-color);
  transition: width var(--transition-speed);
}

.nav-link:hover,
.nav-link.active {
  color: var(--accent-color);
}

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

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  cursor: pointer;
  padding: 5px;
}

.mobile-menu-toggle span {
  width: 25px;
  height: 2px;
  background: var(--text-secondary);
  transition: all var(--transition-speed);
}

/* Main Content */
main {
  position: relative;
  z-index: 2;
  padding-top: var(--header-height);
  min-height: 100vh;
}

/* Hero Section */
.hero-home {
  text-align: center;
  padding: 6rem 0 4rem;
  position: relative;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 25%, #00f5ff 50%, #667eea 75%, #764ba2 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradient-shift 3s ease infinite;
}

.hero-desc {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 700px;
  margin: 0 auto 3rem;
  line-height: 1.8;
}

/* Product Hero */
.product-hero {
  padding: 4rem 0;
  text-align: center;
  position: relative;
}

.product-icon-large {
  margin-bottom: 2rem;
}

.product-icon-large img {
  width: 120px;
  height: 120px;
  filter: drop-shadow(0 0 30px var(--accent-color));
}

.product-hero-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 800;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--accent-color), var(--secondary-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.product-hero-desc {
  font-size: 1.3rem;
  color: var(--text-secondary);
  max-width: 800px;
  margin: 0 auto 2rem;
}

/* Sections */
section {
  padding: 4rem 0;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--accent-color), var(--secondary-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
}

/* Cards */
.card {
  background: var(--card-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 2rem;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.card:hover {
  transform: translateY(-5px);
  border-color: var(--border-glow);
  box-shadow: 0 10px 40px rgba(0, 245, 255, 0.2);
}

/* Products Grid */
.products-section {
  padding: 4rem 0;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.product-card {
  background: var(--card-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 2.5rem;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.product-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), 
                              rgba(102, 126, 234, 0.2) 0%, 
                              transparent 50%);
  opacity: 0;
  transition: opacity var(--transition-speed);
  pointer-events: none;
}

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

.product-card:hover {
  transform: translateY(-5px) scale(1.02);
  border-color: var(--border-glow);
  box-shadow: 0 10px 40px rgba(0, 245, 255, 0.2);
}

.product-icon {
  font-size: 3rem;
  margin-bottom: 1.5rem;
  filter: drop-shadow(0 0 20px currentColor);
}

.product-name {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.product-tagline {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.product-features {
  list-style: none;
  margin-bottom: 2rem;
  flex-grow: 1;
}

.product-features li {
  padding: 0.5rem 0;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.product-features li::before {
  content: '✓';
  color: var(--success-color);
  font-weight: bold;
}

/* Badges */
.product-badges {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.badge {
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
}

.badge.free {
  background: rgba(16, 185, 129, 0.2);
  color: #10b981;
  border: 1px solid #10b981;
}

.badge.pro {
  background: rgba(147, 51, 234, 0.2);
  color: #9333ea;
  border: 1px solid #9333ea;
}

.badge.coming-soon {
  background: rgba(251, 146, 60, 0.2);
  color: #fb923c;
  border: 1px solid #fb923c;
}

.coming-soon-badge {
  display: inline-block;
  padding: 0.5rem 1.5rem;
  background: var(--warning-color);
  color: var(--dark-bg);
  font-weight: 700;
  border-radius: 30px;
  margin-bottom: 2rem;
  font-size: 0.9rem;
  letter-spacing: 1px;
}

/* Buttons */
.btn {
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: 50px;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  transition: all var(--transition-speed);
  text-align: center;
  min-width: 120px;
}

.btn.primary {
  background: var(--primary-gradient);
  color: white;
  box-shadow: 0 4px 20px rgba(102, 126, 234, 0.4);
}

.btn.secondary {
  background: transparent;
  color: var(--accent-color);
  border: 2px solid var(--accent-color);
}

.btn.disabled {
  background: rgba(107, 114, 128, 0.2);
  color: #6b7280;
  border: 1px solid #6b7280;
  cursor: not-allowed;
}

.btn:not(.disabled):hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 30px rgba(102, 126, 234, 0.6);
}

.btn.small {
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
}

.cta-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 2rem;
}

.product-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.product-cta .btn {
  flex: 1;
}

/* Features Grid */
.features-detailed {
  background: rgba(16, 20, 47, 0.3);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.feature-card {
  background: var(--card-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 2rem;
  text-align: left;
  transition: all var(--transition-speed);
}

.feature-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-glow);
  box-shadow: 0 10px 30px rgba(0, 245, 255, 0.2);
}

.feature-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  display: inline-block;
  background: linear-gradient(135deg, var(--accent-color), var(--secondary-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.feature-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.feature-desc {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Industries Grid */
.industries-section {
  background: rgba(16, 20, 47, 0.3);
}

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

.industry-card {
  background: var(--card-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 2rem;
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  position: relative;
  overflow: hidden;
}

.industry-card:hover {
  transform: translateY(-5px) scale(1.02);
  border-color: var(--border-glow);
  box-shadow: 0 10px 40px rgba(0, 245, 255, 0.2);
}

.industry-card.active {
  border-color: var(--accent-color);
  background: rgba(16, 20, 47, 0.9);
  box-shadow: 0 10px 40px rgba(0, 245, 255, 0.3);
}

.card-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.card-icon {
  font-size: 2.5rem;
  filter: drop-shadow(0 0 20px currentColor);
}

.card-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-primary);
}

.card-description {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  line-height: 1.6;
}

.card-examples {
}

.example-list {
  list-style: none;
  padding: 0;
}

.example-item {
  padding: 0.75rem 1rem;
  margin: 0.5rem 0;
  background: rgba(0, 245, 255, 0.05);
  border-left: 3px solid var(--accent-color);
  border-radius: 8px;
  color: var(--text-secondary);
  opacity: 0;
  transform: translateX(-20px);
  animation: slideIn 0.5s ease forwards;
}

/* Pricing Section */
.pricing-section {
  padding: 4rem 0;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  max-width: 900px;
  margin: 0 auto;
}

.pricing-card {
  background: var(--card-bg);
  backdrop-filter: blur(10px);
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 2.5rem;
  text-align: center;
  position: relative;
  transition: all var(--transition-speed);
}

.pricing-card.featured {
  border-color: var(--accent-color);
  transform: scale(1.05);
}

.pricing-card.featured::before {
  content: 'RECOMMENDED';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent-color);
  color: var(--dark-bg);
  padding: 0.25rem 1rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 1px;
}

.pricing-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-glow);
  box-shadow: 0 10px 30px rgba(0, 245, 255, 0.2);
}

.pricing-card.featured:hover {
  transform: scale(1.05) translateY(-5px);
}

.pricing-tier {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.pricing-price {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  background: linear-gradient(135deg, var(--accent-color), var(--secondary-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.pricing-price sup {
  font-size: 1.5rem;
}

.pricing-period {
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.pricing-features {
  list-style: none;
  margin-bottom: 2rem;
  text-align: left;
}

.pricing-features li {
  padding: 0.75rem 0;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.pricing-features li:last-child {
  border-bottom: none;
}

.pricing-features li::before {
  content: '✓';
  color: var(--success-color);
  font-weight: bold;
  font-size: 1.2rem;
}

.pricing-features li.disabled {
  opacity: 0.5;
}

.pricing-features li.disabled::before {
  content: '✗';
  color: var(--error-color);
}

.pricing-cta {
  width: 100%;
}

.freemius-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 1rem;
  opacity: 0.8;
  transition: opacity 0.3s ease;
}

.freemius-badge:hover {
  opacity: 1;
}

.freemius-badge img {
  height: 45px; 
  width: auto; 
  max-width: 100%; 
}

@media (max-width: 480px) {
  .freemius-badge img {
    height: 40px;
  }
}

/* Trust Badges */
.trust-badges {
  display: flex;
  gap: 2rem;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  margin: 2rem 0;
  padding: 2rem;
  background: rgba(16, 20, 47, 0.3);
  border-radius: var(--border-radius);
}

.trust-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.trust-badge img {
  height: 30px;
  opacity: 0.8;
}

/* FAQ Section */
.faq-section {
  padding: 4rem 0;
}

.faq-container {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  margin-bottom: 1.5rem;
  background: var(--card-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: 15px;
  overflow: hidden;
  transition: all var(--transition-speed);
}

.faq-item:hover {
  border-color: var(--border-glow);
}

.faq-question {
  padding: 1.5rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}

.faq-question::after {
  content: '+';
  font-size: 1.5rem;
  color: var(--accent-color);
  transition: transform var(--transition-speed);
}

.faq-item.active .faq-question::after {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-speed);
  color: var(--text-secondary);
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 0 1.5rem 1.5rem;
}

/* CTA Section */
.cta-section {
  padding: 4rem 0;
  text-align: center;
  background: rgba(16, 20, 47, 0.3);
}

.cta-content {
  max-width: 800px;
  margin: 0 auto;
}

.cta-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--accent-color), var(--secondary-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.cta-desc {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

/* Demo Section */
.demo-section {
  padding: 2rem 0;
  text-align: center;
}

.demo-container {
  max-width: 900px;
  margin: 0 auto;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.demo-image {
  width: 100%;
  height: auto;
  display: block;
}

/* How It Works */
.how-it-works {
  padding: 4rem 0;
  background: rgba(16, 20, 47, 0.3);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.step-card {
  text-align: center;
  padding: 2rem;
}

.step-number {
  width: 60px;
  height: 60px;
  background: var(--primary-gradient);
  color: white;
  font-size: 1.5rem;
  font-weight: 700;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
}

.step-card h3 {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
}

.step-card p {
  color: var(--text-secondary);
}

/* Use Cases */
.use-cases-section {
  padding: 4rem 0;
}

.use-cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.use-case-card {
  background: var(--card-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 2rem;
  transition: all var(--transition-speed);
}

.use-case-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-glow);
  box-shadow: 0 10px 30px rgba(0, 245, 255, 0.2);
}

.use-case-card h3 {
  font-size: 1.3rem;
  margin-bottom: 1rem;
  color: var(--accent-color);
}

.use-case-card p {
  color: var(--text-secondary);
}

/* Early Access Section */
.early-access-section {
  padding: 4rem 0;
  background: rgba(16, 20, 47, 0.3);
}

.early-access-container {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.early-access-form {
  margin: 2rem 0;
}

.early-access-form form {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
}

.email-input {
  flex: 1;
  min-width: 250px;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--border-color);
  border-radius: 50px;
  color: var(--text-primary);
  transition: all var(--transition-speed);
}

.email-input::placeholder {
  color: var(--text-secondary);
}

.email-input:focus {
  outline: none;
  border-color: var(--accent-color);
  background: rgba(255, 255, 255, 0.15);
}

.form-note {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-top: 0.5rem;
}

.early-access-benefits {
  margin-top: 3rem;
  text-align: left;
  background: var(--card-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 2rem;
}

.early-access-benefits h3 {
  font-size: 1.3rem;
  margin-bottom: 1rem;
  color: var(--accent-color);
}

.early-access-benefits ul {
  list-style: none;
}

.early-access-benefits li {
  padding: 0.5rem 0;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.early-access-benefits li::before {
  content: '✓';
  color: var(--success-color);
  font-weight: bold;
}

/* Timeline */
.timeline-section {
  padding: 4rem 0;
}

.timeline {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border-color);
  transform: translateX(-50%);
}

.timeline-item {
  position: relative;
  padding: 2rem 0;
  display: flex;
  align-items: center;
  gap: 2rem;
}

.timeline-item:nth-child(even) {
  flex-direction: row-reverse;
}

.timeline-date {
  flex: 0 0 150px;
  text-align: right;
  font-weight: 700;
  color: var(--accent-color);
}

.timeline-item:nth-child(even) .timeline-date {
  text-align: left;
}

.timeline-content {
  flex: 1;
  background: var(--card-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  position: relative;
}

.timeline-item::after {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  width: 20px;
  height: 20px;
  background: var(--dark-bg);
  border: 3px solid var(--border-color);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.timeline-item.completed::after {
  background: var(--success-color);
  border-color: var(--success-color);
}

.timeline-item.active::after {
  background: var(--accent-color);
  border-color: var(--accent-color);
  box-shadow: 0 0 20px var(--accent-color);
}

.timeline-content h3 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}

.timeline-content p {
  color: var(--text-secondary);
  margin: 0;
}

/* Footer */
footer {
  padding: 3rem 0 2rem;
  border-top: 1px solid var(--border-color);
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  margin-bottom: 2rem;
}

.footer-section h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.footer-section ul {
  list-style: none;
}

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

.footer-section a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-speed);
}

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

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  color: var(--text-secondary);
}

.contact-link {
  color: var(--accent-color);
  text-decoration: none;
  font-weight: 600;
}

.contact-link:hover {
  text-decoration: underline;
}

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

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.8s ease forwards;
}

/* Loading Screen */
.loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--dark-bg);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  transition: opacity 0.5s ease;
}

.loader.hidden {
  opacity: 0;
  pointer-events: none;
}

.loader-content {
  text-align: center;
}

.loader-text {
  font-size: 2.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent-color), var(--secondary-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: pulse 1.5s ease infinite;
}

/* Example*/
.example {
  display: block;
  margin-top: 0.5em;
  color: #80bfff; 
  font-style: italic;
}

/* Contact Form Styles */
.contact-form-container {
  max-width: 600px;
  margin: 0 auto;
  background: var(--card-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 2.5rem;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
}

.form-group label {
  color: var(--text-primary);
  font-weight: 600;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 0.75rem 1rem;
  background: rgba(16, 20, 47, 0.8); 
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-small);
  color: var(--text-primary);
  font-size: 1rem;
  transition: all var(--transition-speed);
  backdrop-filter: blur(10px); 
}

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

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-color);
  background: rgba(255, 255, 255, 0.1);
  box-shadow: 0 0 0 3px rgba(0, 245, 255, 0.1);
}

.form-help {
  color: var(--text-secondary);
  font-size: 0.8rem;
  margin-top: 0.5rem;
  line-height: 1.4;
  opacity: 0.8;
}

.contact-submit {
  width: 100%;
  margin-top: 1.5rem;
  position: relative;
  overflow: hidden;
  padding: 1rem 2rem; 
  font-size: 1.1rem;
  font-weight: 600;
}

.contact-submit:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.contact-content {
  text-align: center;
  margin-bottom: 3rem;
}

.contact-info {
  margin: 1.5rem 0;
}

.contact-link {
  color: var(--accent-color);
  text-decoration: none;
  font-weight: 600;
  font-size: 1.1rem;
}

.contact-link:hover {
  color: var(--secondary-accent);
}

.contact-section {
  text-align: center;
  padding: 4rem 0;
}

.form-group select {
  padding: 0.75rem 1rem;
  background: rgba(16, 20, 47, 0.8);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-small);
  color: var(--text-primary);
  font-size: 1rem;
  transition: all var(--transition-speed);
  backdrop-filter: blur(10px);
  appearance: none;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%2300f5ff' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
  background-position: right 0.5rem center;
  background-repeat: no-repeat;
  background-size: 1.5em 1.5em;
  padding-right: 2.5rem;
}

.form-group select option {
  background: var(--dark-bg);
  color: var(--text-primary);
  padding: 0.5rem;
}

.form-group select:focus {
  outline: none;
  border-color: var(--accent-color);
  background: rgba(16, 20, 47, 0.9);
  box-shadow: 0 0 0 3px rgba(0, 245, 255, 0.1);
}

/* Modal Styles */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 10000;
  backdrop-filter: blur(5px);
  animation: fadeIn 0.3s ease;
}

.modal-content {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 2rem;
  text-align: center;
  max-width: 400px;
  width: 90%;
  animation: scaleIn 0.3s ease;
}

.modal-icon {
  width: 60px;
  height: 60px;
  background: var(--success-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: white;
  margin: 0 auto 1rem;
  animation: bounce 0.6s ease;
}

.modal-content h3 {
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.modal-content p {
  color: var(--text-secondary);
  margin: 0;
}

/* Contact Form Mobile Responsive */
@media (max-width: 768px) {
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .contact-form-container {
    padding: 1.5rem;
    margin: 0 1rem;
  }
}


/* VAT Notice */
.vat-notice {
  text-align: center;
  margin: 0.75rem 0 0.5rem 0;
}

.vat-notice small {
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-style: italic;
  opacity: 0.8;
}