* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg-primary: #0f0f1e;
  --bg-secondary: #1a1a2e;
  --bg-tertiary: #252543;
  --text-primary: #f0f0f0;
  --text-secondary: #b0b0c0;
  --accent-green: #34d399;
  --accent-blue: #3b82f6;
  --accent-purple: #a78bfa;
  --border-color: #2a2a45;
  --glow-soft: rgba(52, 211, 153, 0.1);
  --glow-medium: rgba(52, 211, 153, 0.2);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  letter-spacing: 0.3px;
}

/* Header & Navigation */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15, 15, 30, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  padding: 0.75rem 0;
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: var(--accent-green);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo::before {
  content: '✦';
  opacity: 0.6;
}

.nav-desktop {
  display: flex;
  gap: 2.5rem;
  list-style: none;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.3s ease;
  position: relative;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-green);
  transition: width 0.3s ease;
}

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

.header-controls {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.lang-switcher,
.currency-switcher {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  font-size: 0.85rem;
}

.switcher-btn {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.5rem 0.75rem;
  cursor: pointer;
  border-radius: 4px;
  transition: all 0.3s ease;
  font-family: inherit;
}

.switcher-btn:hover,
.switcher-btn.active {
  border-color: var(--accent-green);
  color: var(--accent-green);
  background: rgba(52, 211, 153, 0.05);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Main Content */
main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

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

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  margin-bottom: 1rem;
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.hero p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
}

.hero-meta {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  flex-wrap: wrap;
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.cta-btn {
  display: inline-block;
  padding: 0.875rem 2.5rem;
  background: linear-gradient(135deg, var(--accent-green), var(--accent-blue));
  color: var(--bg-primary);
  text-decoration: none;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  letter-spacing: 0.3px;
  margin-bottom: 2rem;
}

.cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(52, 211, 153, 0.2);
}

.hero-footer {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 2rem;
  font-style: italic;
}

/* Section Spacing */
section {
  padding: 5rem 0;
  border-top: 1px solid var(--border-color);
}

section:first-of-type {
  border-top: none;
}

section h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: 3rem;
  text-align: center;
  font-weight: 700;
  letter-spacing: -0.3px;
}

/* Card Grid */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.card {
  padding: 2rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(52, 211, 153, 0.05), transparent);
  transition: left 0.5s ease;
}

.card:hover {
  border-color: var(--accent-green);
  background: var(--bg-tertiary);
  box-shadow: 0 8px 24px rgba(52, 211, 153, 0.1);
  transform: translateY(-4px);
}

.card:hover::before {
  left: 100%;
}

.card h3 {
  font-size: 1.1rem;
  margin-bottom: 1rem;
  color: var(--accent-green);
  position: relative;
  z-index: 1;
}

.card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  position: relative;
  z-index: 1;
  line-height: 1.6;
}

.card ul {
  list-style: none;
  margin-top: 1.5rem;
}

.card li {
  font-size: 0.9rem;
  color: var(--text-secondary);
  padding-left: 1.5rem;
  margin-bottom: 0.75rem;
  position: relative;
  z-index: 1;
}

.card li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent-green);
  opacity: 0.6;
}

/* Pricing Section */
.pricing-block {
  text-align: center;
  padding: 4rem 2rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  margin-top: 3rem;
}

.pricing-block h3 {
  font-size: 1.8rem;
  margin-bottom: 1rem;
  color: var(--accent-green);
}

.pricing-amount {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
}

.pricing-subtitle {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  line-height: 1.6;
}

.currency-note {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  font-style: italic;
}

/* Contact Section */
.contacts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
  text-align: center;
}

.contact-item h3 {
  color: var(--accent-green);
  margin-bottom: 1rem;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
}

.contact-item a {
  color: var(--text-primary);
  text-decoration: none;
  font-size: 1rem;
  transition: color 0.3s ease;
}

.contact-item a:hover {
  color: var(--accent-green);
}

/* Form */
.form-container {
  background: var(--bg-secondary);
  padding: 3rem;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  margin-top: 3rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
  font-weight: 500;
}

.required::after {
  content: ' *';
  color: var(--accent-green);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.75rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  border-radius: 4px;
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent-green);
  box-shadow: 0 0 0 3px rgba(52, 211, 153, 0.1);
}

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

.form-help {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

.form-error {
  color: #f87171;
  font-size: 0.8rem;
  margin-top: 0.25rem;
  display: none;
}

.form-group.error input,
.form-group.error textarea,
.form-group.error select {
  border-color: #f87171;
}

.form-group.error .form-error {
  display: block;
}

.form-submit {
  width: 100%;
  padding: 1rem;
  background: linear-gradient(135deg, var(--accent-green), var(--accent-blue));
  color: var(--bg-primary);
  border: none;
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

.form-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(52, 211, 153, 0.3);
}

.form-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.form-message {
  margin-top: 1rem;
  padding: 1rem;
  border-radius: 4px;
  font-size: 0.95rem;
  display: none;
}

.form-message.success {
  background: rgba(52, 211, 153, 0.1);
  color: var(--accent-green);
  border: 1px solid var(--accent-green);
}

.form-message.error {
  background: rgba(248, 113, 113, 0.1);
  color: #f87171;
  border: 1px solid #f87171;
}

.form-message.show {
  display: block;
}

/* Footer */
footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 4rem 0 2rem;
  margin-top: 5rem;
}

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

.footer-section h4 {
  color: var(--accent-green);
  margin-bottom: 1rem;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.footer-section a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  display: block;
  margin-bottom: 0.75rem;
  transition: color 0.3s ease;
}

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

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

.footer-bottom-nav {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.footer-bottom-nav a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.3s ease;
}

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

/* CTA Section */
.cta-section {
  text-align: center;
  padding: 4rem 2rem;
  background: linear-gradient(135deg, rgba(52, 211, 153, 0.05), rgba(59, 130, 246, 0.05));
  border: 1px solid var(--border-color);
  border-radius: 8px;
  margin: 3rem 0;
}

.cta-section h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.cta-section p {
  color: var(--text-secondary);
  margin-bottom: 2rem;
  font-size: 1rem;
}

/* Responsive */
@media (max-width: 768px) {
  .header-container {
    height: auto;
    flex-wrap: wrap;
    gap: 1rem;
  }

  .nav-desktop {
    display: none;
  }

  .mobile-menu-btn {
    display: block;
  }

  .hero {
    padding: 4rem 0;
  }

  .hero h1 {
    font-size: 1.75rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .hero-meta {
    flex-direction: column;
    gap: 1rem;
  }

  section {
    padding: 3rem 0;
  }

  section h2 {
    font-size: 1.5rem;
  }

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

  .form-container {
    padding: 2rem;
  }

  .footer-bottom {
    justify-content: center;
    text-align: center;
  }

  .footer-bottom-nav {
    flex-wrap: wrap;
  }

  .lang-switcher,
  .currency-switcher {
    gap: 0.5rem;
    font-size: 0.75rem;
  }

  .switcher-btn {
    padding: 0.4rem 0.6rem;
    font-size: 0.75rem;
  }
}

@media (max-width: 480px) {
  .header-container {
    padding: 0 1rem;
  }

  .hero h1 {
    font-size: 1.5rem;
  }

  .hero p {
    font-size: 0.95rem;
  }

  .cta-btn {
    padding: 0.75rem 2rem;
    font-size: 0.9rem;
  }

  section h2 {
    font-size: 1.25rem;
    margin-bottom: 2rem;
  }

  .form-container {
    padding: 1.5rem;
  }

  .pricing-block {
    padding: 2rem 1rem;
  }

  .pricing-amount {
    font-size: 2rem;
  }
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.6s ease-out;
}

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

.slide-in {
  animation: slideIn 0.6s ease-out;
}