/* ==========================================================================
   TimeToDecimal Platform Design System v3.0
   ========================================================================== */

:root {
  /* Color Palette - Inter / Stripe / Linear inspired */
  --primary-50: #eef2ff;
  --primary-100: #e0e7ff;
  --primary-500: #4f46e5;
  --primary-600: #4338ca;
  --primary-700: #3730a3;

  --accent-teal-500: #0d9488;
  --accent-teal-600: #0f766e;
  
  --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;

  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;

  --text-main: #0f172a;
  --text-muted: #475569;
  --text-subtle: #64748b;

  --border-color: #e2e8f0;
  --border-focus: #6366f1;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

[data-theme="dark"] {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;

  --text-main: #f8fafc;
  --text-muted: #cbd5e1;
  --text-subtle: #94a3b8;

  --border-color: #334155;
  --border-focus: #818cf8;

  --gray-50: #1e293b;
  --gray-100: #334155;
  --gray-900: #f8fafc;
}

/* Global Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-secondary);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--primary-600);
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--primary-700);
}

.layout-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Component Styles */
.hero-section {
  padding: 4rem 0 3rem;
  text-align: center;
  background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
  border-bottom: 1px solid var(--border-color);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  background: var(--primary-50);
  color: var(--primary-700);
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--text-main);
  margin-bottom: 1rem;
  line-height: 1.15;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto 2.5rem;
}

/* Intelligent Search Component */
.search-container {
  position: relative;
  max-width: 720px;
  margin: 0 auto 1.5rem;
}

.search-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.search-input {
  width: 100%;
  padding: 1.125rem 1.5rem 1.125rem 3.25rem;
  font-size: 1.125rem;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-lg);
  background-color: var(--bg-primary);
  color: var(--text-main);
  box-shadow: var(--shadow-md);
  outline: none;
  transition: all 0.2s ease;
}

.search-input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.15), var(--shadow-lg);
}

.search-icon {
  position: absolute;
  left: 1.125rem;
  width: 1.25rem;
  height: 1.25rem;
  color: var(--text-subtle);
  pointer-events: none;
}

.search-suggestions {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  z-index: 1000;
  max-height: 420px;
  overflow-y: auto;
  display: none;
}

.search-suggestions.active {
  display: block;
}

.suggestion-group-title {
  padding: 0.75rem 1rem 0.35rem;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-subtle);
  background: var(--bg-secondary);
}

.suggestion-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
  cursor: pointer;
  transition: background 0.15s ease;
}

.suggestion-item:last-child {
  border-bottom: none;
}

.suggestion-item:hover, .suggestion-item.focused {
  background-color: var(--primary-50);
}

.suggestion-item-title {
  font-weight: 600;
  color: var(--text-main);
}

.suggestion-item-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Quick Launch Pills */
.popular-searches {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-subtle);
}

.pill-btn {
  padding: 0.4rem 0.85rem;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 9999px;
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.875rem;
  transition: all 0.15s ease;
}

.pill-btn:hover {
  border-color: var(--primary-500);
  color: var(--primary-600);
  background-color: var(--primary-50);
}

/* Section Common */
.section-block {
  padding: 4rem 0;
  border-bottom: 1px solid var(--border-color);
}

.section-header {
  margin-bottom: 2.5rem;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-main);
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin-top: 0.35rem;
}

/* Grid Layouts */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

/* Cards */
.card-base {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: all 0.2s ease;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.card-base:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-500);
}

.card-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.6rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.status-badge.verified {
  background-color: #dcfce7;
  color: #166534;
}

.status-badge.updated {
  background-color: #e0f2fe;
  color: #075985;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.5rem;
}

.card-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  flex-grow: 1;
  margin-bottom: 1.25rem;
}

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

/* Task Intent Pills */
.task-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
}

.task-card {
  padding: 1.25rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 1rem;
  font-weight: 600;
  color: var(--text-main);
  transition: all 0.15s ease;
}

.task-card:hover {
  border-color: var(--primary-500);
  background: var(--primary-50);
  color: var(--primary-700);
}

.task-icon {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: var(--radius-sm);
  background: var(--primary-100);
  color: var(--primary-600);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

/* Platform Trust Center Metrics */
.trust-banner {
  background: linear-gradient(135deg, var(--gray-900) 0%, var(--gray-800) 100%);
  color: #ffffff;
  border-radius: var(--radius-xl);
  padding: 3rem 2.5rem;
  margin: 2rem 0;
}

.trust-title {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.trust-desc {
  color: var(--gray-300);
  margin-bottom: 2rem;
  max-width: 600px;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
}

.metric-item {
  border-left: 3px solid var(--accent-teal-500);
  padding-left: 1.25rem;
}

.metric-value {
  font-size: 2.25rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: #ffffff;
}

.metric-label {
  font-size: 0.875rem;
  color: var(--gray-400);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Media Queries */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2.125rem;
  }
  .hero-subtitle {
    font-size: 1.05rem;
  }
  .section-block {
    padding: 2.5rem 0;
  }
  .trust-banner {
    padding: 2rem 1.5rem;
  }
}