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

:root {
  --color-primary: #0ea5e9;
  --color-primary-dark: #0284c7;
  --color-secondary: #06b6d4;
  --color-background: #0a0a0a;
  --color-surface: #1a1a1a;
  --color-surface-elevated: #252525;
  --color-text: #ffffff;
  --color-text-secondary: #e6e6e6;
  --color-border: #2a2a2a;
  --color-success: #10b981;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;

  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-background);
  color: var(--color-text);
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: rgba(10, 10, 10, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
}

.nav-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-sm) 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.logo-text {
  font-size: 1.25rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  list-style: none;
}

.nav-links a {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--color-text);
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
}

.mobile-menu-btn span {
  width: 24px;
  height: 2px;
  background-color: var(--color-text);
  transition: all 0.3s;
}

/* Buttons */
.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: var(--color-text);
  padding: 0.625rem 1.5rem;
  border-radius: var(--radius-md);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9375rem;
  display: inline-block;
  transition: transform 0.2s, box-shadow 0.2s;
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(14, 165, 233, 0.3);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-text);
  padding: 0.625rem 1.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9375rem;
  display: inline-block;
  transition: all 0.2s;
}

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

.btn-large {
  padding: 0.875rem 2rem;
  font-size: 1rem;
}

/* Hero Section */
.hero {
  padding: calc(var(--spacing-3xl) + 60px) 0 var(--spacing-3xl);
  position: relative;
}

.hero-content {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.announcement {
  margin-bottom: var(--spacing-lg);
}

.badge {
  display: inline-block;
  padding: 0.5rem 1rem;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 2rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-primary);
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: var(--spacing-lg);
  background: linear-gradient(135deg, var(--color-text), var(--color-text-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 1.25rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
  line-height: 1.6;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--spacing-3xl);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-xl);
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--color-border);
}

.stat-item {
  text-align: center;
}

.stat-value {
  font-size: 2.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--spacing-xs);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

/* Problem Section */
.problem-section {
  padding: var(--spacing-3xl) 0;
  background-color: var(--color-surface);
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  margin-bottom: var(--spacing-md);
}

.section-description {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.problem-card {
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  transition: transform 0.2s, border-color 0.2s;
}

.problem-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-primary);
}

.problem-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
}

.problem-card h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
}

.problem-card p {
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* Features Section */
.features-section {
  padding: var(--spacing-3xl) 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-lg);
}

.feature-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  transition: all 0.3s;
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-primary);
  box-shadow: 0 12px 32px rgba(14, 165, 233, 0.15);
}

.feature-icon {
  margin-bottom: var(--spacing-md);
}

.feature-card h3 {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
}

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

/* Benefits Section */
.benefits-section {
  padding: var(--spacing-3xl) 0;
  background-color: var(--color-surface);
}

.benefits-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
}

.benefits-intro {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
  line-height: 1.6;
}

.benefits-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.benefit-item {
  display: flex;
  gap: var(--spacing-md);
}

.benefit-check {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-weight: 700;
}

.benefit-item h4 {
  font-size: 1.125rem;
  margin-bottom: 0.25rem;
}

.benefit-item p {
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
}

.benefits-visual {
  display: flex;
  justify-content: center;
}

.visual-card {
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  width: 100%;
  max-width: 400px;
}

.visual-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
}

.visual-label {
  font-weight: 600;
  font-size: 0.875rem;
}

.visual-status {
  color: var(--color-success);
  font-size: 0.875rem;
  font-weight: 600;
}

.visual-stats {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.visual-stat {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md);
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
}

.visual-stat-label {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.visual-stat-value {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
}

.visual-actions {
  display: flex;
  gap: var(--spacing-sm);
}

.visual-btn {
  flex: 1;
  padding: 0.75rem;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: var(--color-text);
  border: none;
  border-radius: var(--radius-md);
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s;
}

.visual-btn:hover {
  transform: translateY(-2px);
}

.visual-btn-secondary {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
}

/* Mission Section */
.mission-section {
  padding: var(--spacing-3xl) 0;
}

.mission-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-lg);
}

.mission-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
}

.mission-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
}

.mission-card h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-md);
  color: var(--color-primary);
}

.mission-card p {
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.values-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.values-list li {
  color: var(--color-text-secondary);
  padding-left: var(--spacing-md);
  position: relative;
}

.values-list li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--color-primary);
}

/* CTA Section */
.cta-section {
  padding: var(--spacing-3xl) 0;
  background-color: var(--color-surface);
}

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

.cta-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  margin-bottom: var(--spacing-md);
}

.cta-description {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
}

.cta-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  text-align: left;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
}

.cta-form input,
.cta-form textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 1rem;
  transition: border-color 0.2s;
}

.cta-form input:focus,
.cta-form textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}

.cta-form textarea {
  resize: vertical;
}

/* Footer */
.footer {
  padding: var(--spacing-3xl) 0 var(--spacing-lg);
  border-top: 1px solid var(--color-border);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: var(--spacing-3xl);
  margin-bottom: var(--spacing-xl);
}

.footer-tagline {
  color: var(--color-text-secondary);
  margin-top: var(--spacing-sm);
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
}

.footer-column h4 {
  margin-bottom: var(--spacing-md);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-secondary);
}

.footer-column ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer-column a {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 0.9375rem;
  transition: color 0.2s;
}

.footer-column a:hover {
  color: var(--color-text);
}

.footer-bottom {
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-border);
  text-align: center;
  color: var(--color-text-secondary);
  font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

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

  .hero-buttons {
    flex-direction: column;
  }

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

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

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

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

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

/* Smooth Scroll */
html {
  scroll-behavior: smooth;
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-content,
.section-header {
  animation: fadeInUp 0.8s ease-out;
}