/* ===================================
   CSS Variables & Reset
   =================================== */
:root {
  /* Colors - Light Mode */
  --color-primary: #3b82f6;
  --color-primary-dark: #2563eb;
  --color-primary-light: #60a5fa;
  --color-secondary: #8b5cf6;
  --color-success: #10b981;
  --color-danger: #ef4444;

  --color-bg: #ffffff;
  --color-bg-alt: #f9fafb;
  --color-surface: #ffffff;
  --color-border: #e5e7eb;

  --color-text: #111827;
  --color-text-secondary: #6b7280;
  --color-text-muted: #9ca3af;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 0.75rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* 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);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI',
    sans-serif;
  --font-mono: 'Fira Code', 'Courier New', monospace;
}

body.dark {
  --color-primary: #60a5fa;
  --color-primary-dark: #3b82f6;
  --color-primary-light: #93c5fd;
  --color-secondary: #a78bfa;

  --color-bg: #0f172a;
  --color-bg-alt: #1e293b;
  --color-surface: #1e293b;
  --color-border: #334155;

  --color-text: #f1f5f9;
  --color-text-secondary: #cbd5e1;
  --color-text-muted: #94a3b8;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  transition: background var(--transition-base),
    color var(--transition-base);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===================================
   Typography
   =================================== */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text);
}

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

a:hover {
  color: var(--color-primary-dark);
}

code {
  font-family: var(--font-mono);
  background: var(--color-bg-alt);
  padding: 0.125rem 0.375rem;
  border-radius: var(--radius-sm);
  font-size: 0.875em;
  color: var(--color-primary);
}

/* ===================================
   Layout
   =================================== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.section {
  padding: var(--spacing-3xl) 0;
}

.section-title {
  font-size: 2rem;
  text-align: center;
  margin-bottom: var(--spacing-md);
  background: linear-gradient(
    135deg,
    var(--color-primary),
    var(--color-secondary)
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  text-align: center;
  color: var(--color-text-secondary);
  font-size: 1.125rem;
  margin-bottom: var(--spacing-2xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ===================================
   Hero Section
   =================================== */
.hero {
  background: linear-gradient(
    135deg,
    var(--color-bg) 0%,
    var(--color-bg-alt) 100%
  );
  padding: var(--spacing-xl) 0 var(--spacing-3xl);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(
    circle,
    rgba(59, 130, 246, 0.1) 0%,
    transparent 70%
  );
  border-radius: 50%;
  pointer-events: none;
}

.hero-container {
  position: relative;
  z-index: 1;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-3xl);
}

.header-logo {
  max-height: 50px;
  width: auto;
}

.icon-btn {
  width: 44px;
  height: 44px;
  border: none;
  background: var(--color-surface);
  border-radius: var(--radius-full);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-sm);
  color: var(--color-text);
}

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

.icon-btn:active {
  transform: translateY(0);
}

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

.hero-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  margin-bottom: var(--spacing-md);
  background: linear-gradient(
    135deg,
    var(--color-primary),
    var(--color-secondary)
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto var(--spacing-xl);
}

.feature-pills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  justify-content: center;
  align-items: center;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

.pill svg {
  color: var(--color-success);
}

/* ===================================
   Search Form
   =================================== */
.search-wrapper {
  max-width: 800px;
  margin: 0 auto;
}

.search-form {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.search-input-wrapper {
  flex: 1;
  min-width: 300px;
  position: relative;
}

.search-icon {
  position: absolute;
  left: var(--spacing-lg);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  pointer-events: none;
}

.search-input {
  width: 100%;
  padding: var(--spacing-lg) var(--spacing-lg) var(--spacing-lg)
    calc(var(--spacing-lg) * 3);
  font-size: 1rem;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: var(--color-surface);
  color: var(--color-text);
  transition: all var(--transition-base);
  font-family: var(--font-sans);
}

.search-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.search-input::placeholder {
  color: var(--color-text-muted);
}

.btn-group {
  position: relative;
  display: flex;
  border-radius: var(--radius-xl);
  overflow: visible;
  box-shadow: var(--shadow-md);
}

.btn {
  padding: var(--spacing-lg) var(--spacing-xl);
  font-size: 1rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  font-family: var(--font-sans);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.btn-primary {
  background: linear-gradient(
    135deg,
    var(--color-primary),
    var(--color-primary-dark)
  );
  color: white;
  border-radius: var(--radius-xl) 0 0 var(--radius-xl);
}

.btn-primary:hover {
  background: linear-gradient(
    135deg,
    var(--color-primary-dark),
    var(--color-primary)
  );
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-dropdown {
  background: linear-gradient(
    135deg,
    var(--color-primary),
    var(--color-primary-dark)
  );
  color: white;
  padding: var(--spacing-lg);
  border-left: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 0 var(--radius-xl) var(--radius-xl) 0;
}

.btn-dropdown:hover {
  background: linear-gradient(
    135deg,
    var(--color-primary-dark),
    var(--color-primary)
  );
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + var(--spacing-xs));
  right: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  min-width: 200px;
  box-shadow: var(--shadow-xl);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-base);
  z-index: 1000;
  overflow: hidden;
}

.dropdown-menu.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-menu button {
  width: 100%;
  padding: var(--spacing-md) var(--spacing-lg);
  border: none;
  background: transparent;
  text-align: left;
  cursor: pointer;
  font-size: 0.9375rem;
  color: var(--color-text);
  transition: background var(--transition-fast);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.dropdown-menu button:hover {
  background: var(--color-bg-alt);
}

.dropdown-menu button svg {
  color: var(--color-text-muted);
}

/* ===================================
   Results Card
   =================================== */
.results-card {
  display: none;
  margin: var(--spacing-2xl) auto 0;
  padding: var(--spacing-xl);
  border-radius: var(--radius-xl);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
  animation: slideUp 0.4s ease;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

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

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

.result-item {
  background: var(--color-bg-alt);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
}

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

.result-item strong {
  display: block;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

#map {
  height: 400px;
  margin-top: var(--spacing-xl);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

/* ===================================
   Main Content
   =================================== */
.main-content {
  background: var(--color-bg);
}

/* ===================================
   Endpoints Section
   =================================== */
.endpoints-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.endpoint-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.endpoint-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(
    90deg,
    var(--color-primary),
    var(--color-secondary)
  );
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

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

.endpoint-card:hover::before {
  transform: scaleX(1);
}

.endpoint-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-md);
}

.endpoint-header code {
  font-size: 1rem;
  font-weight: 600;
  background: transparent;
  padding: 0;
  color: var(--color-text);
}

.badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--color-primary);
  color: white;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-purple {
  background: var(--color-secondary);
}

.endpoint-card p {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
}

.endpoint-link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--color-primary);
  font-weight: 500;
  transition: gap var(--transition-fast);
  font-size: 0.9375rem;
}

.endpoint-link:hover {
  gap: var(--spacing-sm);
}

.language-examples {
  margin-top: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-border);
}

.language-examples-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.language-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}

.language-links a {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text);
  transition: all var(--transition-fast);
}

.language-links a:hover {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
  transform: translateY(-1px);
}

.info-box {
  display: flex;
  gap: var(--spacing-lg);
  padding: var(--spacing-xl);
  background: linear-gradient(
    135deg,
    rgba(59, 130, 246, 0.05),
    rgba(139, 92, 246, 0.05)
  );
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-lg);
}

.info-icon {
  flex-shrink: 0;
  color: var(--color-primary);
}

.info-box strong {
  color: var(--color-text);
}

/* ===================================
   Sample Section
   =================================== */
.sample-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.sample-label {
  font-weight: 600;
  color: var(--color-text);
}

.language-select {
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: 1rem;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  color: var(--color-text);
  cursor: pointer;
  transition: all var(--transition-base);
  font-family: var(--font-sans);
}

.language-select:focus {
  outline: none;
  border-color: var(--color-primary);
}

.code-block {
  position: relative;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.copy-btn {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  transition: all var(--transition-base);
  z-index: 10;
}

.copy-btn:hover {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

.code-block pre {
  padding: var(--spacing-xl);
  overflow-x: auto;
  background: transparent;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--color-text);
}

/* ===================================
   Sponsor Section
   =================================== */
.sponsor-section {
  padding: var(--spacing-2xl) 0;
  text-align: center;
}

.sponsor-card {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-lg);
  padding: var(--spacing-lg) var(--spacing-2xl);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

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

.sponsor-text {
  font-weight: 600;
  color: var(--color-text-secondary);
  font-size: 1rem;
}

.sponsor-logo {
  max-height: 40px;
  width: auto;
}

/* ===================================
   Footer
   =================================== */
.footer {
  background: var(--color-bg-alt);
  padding: var(--spacing-2xl) 0;
  border-top: 1px solid var(--color-border);
}

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

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

.footer a {
  color: var(--color-primary);
  font-weight: 500;
}

.footer-meta {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.footer-link {
  background: transparent;
  border: none;
  color: var(--color-primary);
  cursor: pointer;
  font-size: 0.875rem;
  text-decoration: underline;
  margin-top: var(--spacing-sm);
}

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

/* ===================================
   Modal
   =================================== */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 9999;
  align-items: center;
  justify-content: center;
}

.modal.show {
  display: flex;
}

.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
}

.modal-content {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  max-width: 500px;
  width: 90%;
  box-shadow: var(--shadow-xl);
  animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(20px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.modal-content h3 {
  margin-bottom: var(--spacing-lg);
  font-size: 1.5rem;
}

.modal-content p {
  margin-bottom: var(--spacing-md);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.modal-close {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  width: 36px;
  height: 36px;
  border: none;
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
  transition: all var(--transition-base);
}

.modal-close:hover {
  background: var(--color-danger);
  color: white;
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 768px) {
  .search-form {
    flex-direction: column;
  }

  .search-input-wrapper {
    min-width: 100%;
  }

  .btn-group {
    width: 100%;
  }

  .btn {
    flex: 1;
  }

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

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

  .feature-pills {
    flex-direction: column;
  }

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

  .section-title {
    font-size: 1.5rem;
  }

  .info-box {
    flex-direction: column;
    gap: var(--spacing-md);
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--spacing-md);
  }

  .hero {
    padding: var(--spacing-md) 0 var(--spacing-xl);
  }

  .section {
    padding: var(--spacing-xl) 0;
  }

  .modal-content {
    padding: var(--spacing-xl);
  }
}