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

:root {
  /* Colors */
  --primary: #2563eb;
  --primary-dark: #1e40af;
  --primary-light: #3b82f6;
  --secondary: #64748b;
  --accent: #8b5cf6;
  --success: #10b981;
  --warning: #f59e0b;
  --error: #ef4444;

  /* Neutrals */
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --gradient-accent: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);

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

  /* Typography */
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;

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

body {
  font-family: var(--font-sans);
  color: var(--gray-900);
  background-color: #ffffff;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

/* ==================== Navigation ==================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-200);
  z-index: 1000;
  padding: var(--spacing-sm) 0;
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--gray-900);
}

.logo-icon {
  width: 32px;
  height: 32px;
  color: var(--primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.nav-link {
  color: var(--gray-700);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
  font-size: 0.95rem;
}

.nav-link:hover {
  color: var(--primary);
}

/* ==================== Buttons ==================== */
.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  border: none;
  cursor: pointer;
  font-size: 0.95rem;
}

.btn-primary {
  background: var(--primary);
  color: white;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background: var(--primary-dark);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--gray-100);
  color: var(--gray-900);
}

.btn-secondary:hover {
  background: var(--gray-200);
}

.btn-large {
  padding: 0.875rem 1.75rem;
  font-size: 1rem;
}

.btn-icon {
  width: 20px;
  height: 20px;
}

/* ==================== Hero Section ==================== */
.hero {
  padding: 8rem 0 4rem;
  background: linear-gradient(180deg, var(--gray-50) 0%, #ffffff 100%);
}

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

.badge {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: var(--primary-light);
  color: white;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: var(--spacing-md);
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: var(--spacing-md);
  letter-spacing: -0.02em;
}

.gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 1.25rem;
  color: var(--gray-600);
  margin-bottom: var(--spacing-xl);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  margin-bottom: var(--spacing-2xl);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
  max-width: 600px;
  margin: 0 auto;
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--gray-200);
}

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

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 0.25rem;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--gray-600);
  font-weight: 500;
}

/* ==================== Features Section ==================== */
.features {
  padding: var(--spacing-2xl) 0;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--spacing-2xl);
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: var(--spacing-md);
  letter-spacing: -0.02em;
}

.section-description {
  font-size: 1.125rem;
  color: var(--gray-600);
  line-height: 1.7;
}

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

.feature-card {
  padding: var(--spacing-xl);
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-xl);
  transition: var(--transition);
}

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

.feature-icon {
  width: 48px;
  height: 48px;
  background: var(--primary);
  color: white;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
}

.feature-icon svg {
  width: 24px;
  height: 24px;
}

.feature-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.feature-description {
  color: var(--gray-600);
  line-height: 1.7;
}

/* ==================== API Section ==================== */
.api-section {
  padding: var(--spacing-2xl) 0;
  background: var(--gray-50);
}

.api-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  align-items: center;
}

.api-info {
  padding-right: var(--spacing-lg);
}

.api-description {
  font-size: 1.125rem;
  color: var(--gray-600);
  margin-bottom: var(--spacing-xl);
  line-height: 1.7;
}

.api-features {
  margin-bottom: var(--spacing-xl);
}

.api-feature-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.check-icon {
  width: 20px;
  height: 20px;
  color: var(--success);
  flex-shrink: 0;
  margin-top: 2px;
}

.api-code {
  background: var(--gray-900);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.code-header {
  background: var(--gray-800);
  padding: var(--spacing-sm) var(--spacing-md);
  border-bottom: 1px solid var(--gray-700);
}

.code-tabs {
  display: flex;
  gap: var(--spacing-sm);
}

.code-tab {
  padding: 0.5rem 1rem;
  background: transparent;
  border: none;
  color: var(--gray-400);
  font-weight: 500;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  font-size: 0.875rem;
}

.code-tab:hover {
  color: var(--gray-200);
  background: var(--gray-700);
}

.code-tab.active {
  color: white;
  background: var(--gray-700);
}

.code-content {
  padding: var(--spacing-md);
  max-height: 500px;
  overflow-y: auto;
}

.code-block {
  display: none;
  margin: 0;
}

.code-block.active {
  display: block;
}

.code-block code {
  font-family: "Monaco", "Menlo", "Ubuntu Mono", monospace;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--gray-300);
}

/* ==================== Status Section ==================== */
.status-section {
  padding: var(--spacing-2xl) 0;
}

.status-card {
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
}

.status-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--gray-200);
}

.status-header h3 {
  font-size: 1.5rem;
  font-weight: 700;
}

.status-badge {
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 600;
}

.status-operational {
  background: #d1fae5;
  color: #065f46;
}

.status-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
}

.status-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md);
  background: var(--gray-50);
  border-radius: var(--radius-md);
}

.status-label {
  font-weight: 600;
  color: var(--gray-700);
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: 0.875rem;
  color: var(--gray-600);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.status-green {
  background: var(--success);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
}

/* ==================== Footer ==================== */
.footer {
  background: var(--gray-900);
  color: var(--gray-400);
  padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

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

.footer-brand {
  max-width: 400px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-md);
}

.footer-logo .logo-icon {
  color: var(--primary-light);
}

.footer-logo .logo-text {
  font-size: 1.5rem;
  font-weight: 700;
  color: white;
}

.footer-description {
  line-height: 1.7;
}

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

.footer-column h4 {
  color: white;
  font-weight: 600;
  margin-bottom: var(--spacing-md);
}

.footer-column a {
  display: block;
  color: var(--gray-400);
  text-decoration: none;
  margin-bottom: var(--spacing-sm);
  transition: var(--transition);
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--gray-800);
}

.footer-legal {
  display: flex;
  gap: var(--spacing-lg);
}

.footer-legal a {
  color: var(--gray-400);
  text-decoration: none;
  transition: var(--transition);
}

.footer-legal a:hover {
  color: var(--primary-light);
}

/* ==================== Responsive Design ==================== */
@media (max-width: 1024px) {
  .hero-title {
    font-size: 2.5rem;
  }

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

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

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

  .hero {
    padding: 6rem 0 3rem;
  }

  .hero-title {
    font-size: 2rem;
  }

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

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

  .hero-stats {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  .section-title {
    font-size: 2rem;
  }

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

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

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

/* ==================== Animations ==================== */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-content,
.feature-card,
.api-content {
  animation: fadeIn 0.6s ease-out;
}

/* ==================== Copy Button ==================== */
.copy-button {
  position: absolute;
  top: 1rem;
  right: 1rem;
  padding: 0.5rem;
  background: var(--gray-700);
  border: 1px solid var(--gray-600);
  border-radius: var(--radius-sm);
  color: var(--gray-300);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.copy-button:hover {
  background: var(--gray-600);
  color: white;
}

.copy-button svg {
  width: 16px;
  height: 16px;
}

/* ==================== Mobile Menu ==================== */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--gray-900);
  cursor: pointer;
  padding: 0.5rem;
}

@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: block;
  }

  .nav-links {
    display: flex; /* override desktop/mobile hidden state */
    flex-direction: column;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: white;
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    transform: translateY(-100%);
    opacity: 0;
    transition: var(--transition);
    pointer-events: none;
  }

  .nav-links.mobile-active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }
}

/* ==================== Scrollbar Styling ==================== */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
  background: var(--gray-400);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--gray-500);
}