/* =============================================================================
   TM ASSIST - Modern Design System
   ============================================================================= */

/* CSS Variables */
:root {
  /* Colors - Deep Navy & Gold Theme */
  --primary: #1a365d;
  --primary-light: #2a4a7f;
  --primary-dark: #0f2744;
  --accent: #d69e2e;
  --accent-light: #ecc94b;
  --accent-dark: #b7791f;
  
  /* Neutrals */
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #edf2f7;
  --text-primary: #1a202c;
  --text-secondary: #4a5568;
  --text-muted: #718096;
  --border-color: #e2e8f0;
  
  /* Status Colors */
  --success: #38a169;
  --warning: #dd6b20;
  --danger: #e53e3e;
  --info: #3182ce;
  
  /* Typography */
  --font-sans: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'M PLUS Rounded 1c', var(--font-sans);
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  
  /* 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), 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);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
}

/* =============================================================================
   Base Styles
   ============================================================================= */

*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-primary);
  background: var(--bg-primary);
  margin: 0;
  padding: 0;
  min-height: 100vh;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-primary);
  margin-top: 0;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
  margin-top: 0;
  margin-bottom: var(--spacing-md);
}

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

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

/* =============================================================================
   Layout
   ============================================================================= */

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.page-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.main-content {
  flex: 1;
  padding: var(--spacing-2xl) 0;
}

/* =============================================================================
   Navigation
   ============================================================================= */

.navbar {
  background: var(--primary);
  box-shadow: var(--shadow-md);
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) var(--spacing-lg);
  max-width: 1200px;
  margin: 0 auto;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: white;
  text-decoration: none;
}

.navbar-brand:hover {
  color: var(--accent-light);
}

.navbar-brand svg {
  width: 32px;
  height: 32px;
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  color: rgba(255, 255, 255, 0.85);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  font-weight: 500;
}

.nav-link:hover {
  color: white;
  background: rgba(255, 255, 255, 0.1);
}

.nav-link.active {
  color: var(--accent-light);
}

/* Mobile Navigation */
.navbar-toggle {
  display: none;
  background: none;
  border: none;
  color: white;
  cursor: pointer;
  padding: var(--spacing-sm);
}

@media (max-width: 768px) {
  .navbar-toggle {
    display: block;
  }
  
  .navbar-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--primary);
    flex-direction: column;
    padding: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
  }
  
  .navbar-nav.active {
    display: flex;
  }
}

/* =============================================================================
   Buttons
   ============================================================================= */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.5;
  text-decoration: none;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

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

.btn-primary:hover:not(:disabled) {
  background: var(--primary-light);
  color: white;
}

.btn-accent {
  background: var(--accent);
  color: white;
}

.btn-accent:hover:not(:disabled) {
  background: var(--accent-dark);
  color: white;
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--primary);
  color: var(--primary);
}

.btn-outline:hover:not(:disabled) {
  background: var(--primary);
  color: white;
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}

.btn-ghost:hover:not(:disabled) {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.btn-danger {
  background: var(--danger);
  color: white;
}

.btn-danger:hover:not(:disabled) {
  background: #c53030;
  color: white;
}

.btn-lg {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: 1.125rem;
}

.btn-sm {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: 0.875rem;
}

.btn-block {
  width: 100%;
}

/* =============================================================================
   Cards
   ============================================================================= */

.card {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.card-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-tertiary);
}

.card-title {
  margin: 0;
  font-size: 1.25rem;
}

.card-body {
  padding: var(--spacing-lg);
}

.card-footer {
  padding: var(--spacing-lg);
  border-top: 1px solid var(--border-color);
  background: var(--bg-tertiary);
}

/* Feature Card */
.feature-card {
  background: var(--bg-secondary);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  text-align: center;
  transition: all var(--transition-base);
  border: 2px solid transparent;
}

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

.feature-card-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--spacing-lg);
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
}

.feature-card-title {
  margin-bottom: var(--spacing-sm);
}

.feature-card-description {
  color: var(--text-secondary);
  margin: 0;
}

/* =============================================================================
   Forms
   ============================================================================= */

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

.form-label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.5;
  color: var(--text-primary);
  background: var(--bg-secondary);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26, 54, 93, 0.1);
}

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

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

.form-hint {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-top: var(--spacing-xs);
}

.form-error {
  font-size: 0.875rem;
  color: var(--danger);
  margin-top: var(--spacing-xs);
}

/* Checkbox & Radio */
.form-check {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.form-check-input {
  width: 1.25rem;
  height: 1.25rem;
  accent-color: var(--primary);
}

/* =============================================================================
   Alerts & Messages
   ============================================================================= */

.alert {
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-lg);
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
}

.alert-success {
  background: #f0fff4;
  border: 1px solid #9ae6b4;
  color: #276749;
}

.alert-danger {
  background: #fed7d7;
  border: 1px solid #fc8181;
  color: #c53030;
}

.alert-warning {
  background: #fefcbf;
  border: 1px solid #f6e05e;
  color: #975a16;
}

.alert-info {
  background: #bee3f8;
  border: 1px solid #63b3ed;
  color: #2b6cb0;
}

/* =============================================================================
   Search Menu
   ============================================================================= */

.search-menu {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
}

.search-menu-item {
  display: flex;
  flex-direction: column;
  padding: var(--spacing-xl);
  background: var(--bg-secondary);
  border-radius: var(--radius-xl);
  border: 2px solid var(--border-color);
  text-decoration: none;
  transition: all var(--transition-base);
}

.search-menu-item:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.search-menu-item-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  margin-bottom: var(--spacing-md);
}

.search-menu-item-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.search-menu-item-description {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin: 0;
}

/* =============================================================================
   Results Table
   ============================================================================= */

.results-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.results-table th,
.results-table td {
  padding: var(--spacing-md);
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.results-table th {
  background: var(--primary);
  color: white;
  font-weight: 600;
}

.results-table tr:last-child td {
  border-bottom: none;
}

.results-table tr:hover td {
  background: var(--bg-tertiary);
}

/* Status Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-success {
  background: #c6f6d5;
  color: #276749;
}

.badge-danger {
  background: #fed7d7;
  color: #c53030;
}

.badge-warning {
  background: #fefcbf;
  color: #975a16;
}

.badge-info {
  background: #bee3f8;
  color: #2b6cb0;
}

.badge-secondary {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
}

/* =============================================================================
   Hero Section
   ============================================================================= */

.hero {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
  color: white;
  padding: var(--spacing-2xl) 0;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero-title {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
  color: white;
}

.hero-subtitle {
  font-size: 1.25rem;
  opacity: 0.9;
  margin-bottom: var(--spacing-xl);
}

.hero-actions {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* =============================================================================
   Footer
   ============================================================================= */

.footer {
  background: var(--primary-dark);
  color: rgba(255, 255, 255, 0.8);
  padding: var(--spacing-xl) 0;
  margin-top: auto;
}

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

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

.footer-link {
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: white;
}

/* =============================================================================
   Utilities
   ============================================================================= */

.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--text-muted); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }

.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: var(--spacing-sm); }
.gap-2 { gap: var(--spacing-md); }
.gap-3 { gap: var(--spacing-lg); }

/* =============================================================================
   Responsive
   ============================================================================= */

@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }
  
  .hero-title { font-size: 2rem; }
  .hero-subtitle { font-size: 1rem; }
  
  .container {
    padding: 0 var(--spacing-md);
  }
  
  .search-menu {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    flex-direction: column;
    text-align: center;
  }
}

/* =============================================================================
   Animations
   ============================================================================= */

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

.animate-fade-in {
  animation: fadeIn 0.3s ease forwards;
}

/* Staggered animation delays */
.search-menu-item:nth-child(1) { animation-delay: 0ms; }
.search-menu-item:nth-child(2) { animation-delay: 50ms; }
.search-menu-item:nth-child(3) { animation-delay: 100ms; }
.search-menu-item:nth-child(4) { animation-delay: 150ms; }
.search-menu-item:nth-child(5) { animation-delay: 200ms; }
.search-menu-item:nth-child(6) { animation-delay: 250ms; }
.search-menu-item:nth-child(7) { animation-delay: 300ms; }
.search-menu-item:nth-child(8) { animation-delay: 350ms; }
.search-menu-item:nth-child(9) { animation-delay: 400ms; }

/* =============================================================================
   Similar Code Links
   ============================================================================= */

.similar-code-link {
  display: inline-block;
  padding: 0.125rem 0.375rem;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: white !important;
  border-radius: var(--radius-sm);
  font-family: 'Consolas', 'Monaco', monospace;
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition-fast);
  margin: 0.125rem;
}

.similar-code-link:hover {
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: white !important;
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

/* Table styles */
.table {
  width: 100%;
  border-collapse: collapse;
}

.table th,
.table td {
  padding: var(--spacing-sm) var(--spacing-md);
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.table th {
  background: var(--bg-tertiary);
  font-weight: 600;
  color: var(--text-primary);
}

.table tbody tr:hover {
  background: var(--bg-tertiary);
}

/* Badge additional colors */
.badge-primary {
  background: var(--primary);
  color: white;
}

.badge-dark {
  background: #2d3748;
  color: white;
}

.badge-light {
  background: #edf2f7;
  color: #4a5568;
}

/* margin-start utility */
.ms-2 { margin-left: var(--spacing-sm); }
.ms-3 { margin-left: var(--spacing-md); }