/* ============================================
   Domain Analyzer - Editorial Data Aesthetic
   ============================================ */

:root {
  /* Color System */
  --bg-primary: #0a0a0b;
  --bg-secondary: #111113;
  --bg-tertiary: #18181b;
  --bg-elevated: #1f1f23;

  --text-primary: #fafafa;
  --text-secondary: #a1a1aa;
  --text-muted: #71717a;

  --accent-primary: #c8ff00;
  --accent-secondary: #a3cc00;
  --accent-glow: rgba(200, 255, 0, 0.15);

  --good: #22c55e;
  --good-bg: rgba(34, 197, 94, 0.12);
  --moderate: #f59e0b;
  --moderate-bg: rgba(245, 158, 11, 0.12);
  --poor: #ef4444;
  --poor-bg: rgba(239, 68, 68, 0.12);

  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-medium: rgba(255, 255, 255, 0.1);

  /* Typography */
  --font-display: 'Instrument Serif', Georgia, serif;
  --font-body: 'DM Sans', -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

/* Grain Texture Overlay */
.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 11, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
}

.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--space-md) var(--space-xl);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  text-decoration: none;
}

/* Navigation */
.nav {
  display: flex;
  gap: var(--space-md);
}

.nav-link {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-decoration: none;
  padding: var(--space-sm) var(--space-md);
  border-radius: 6px;
  transition: all 0.15s var(--ease-out);
}

.nav-link:hover {
  color: var(--text-primary);
  background: var(--bg-tertiary);
}

.nav-link.active {
  color: var(--accent-primary);
  background: var(--accent-glow);
}

.logo-mark {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--bg-primary);
  background: var(--accent-primary);
  padding: 0.4rem 0.6rem;
  border-radius: 4px;
}

.logo-text {
  font-family: var(--font-display);
  font-size: 1rem;
  line-height: 1.1;
  color: var(--text-primary);
}

.header-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 2px;
}

.meta-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
}

.meta-value {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
}

/* Main Content */
.main {
  flex: 1;
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--space-xl);
  width: 100%;
}

/* Hero Section */
.hero {
  padding: var(--space-3xl) 0;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: var(--space-2xl);
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 400;
  line-height: 1.1;
  margin-bottom: var(--space-lg);
}

.title-line {
  display: block;
}

.title-line.accent {
  font-style: italic;
  color: var(--accent-primary);
}

.hero-subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 500px;
  line-height: 1.7;
}

/* Analyzer Section */
.analyzer {
  margin-bottom: var(--space-3xl);
}

.input-container {
  background: var(--bg-secondary);
  border: 1px solid var(--border-medium);
  border-radius: 16px;
  padding: var(--space-xl);
  position: relative;
  overflow: hidden;
}

.input-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-primary), transparent);
  opacity: 0.5;
}

.input-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.input-label {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--text-primary);
}

.input-hint {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.input-wrapper {
  margin-bottom: var(--space-lg);
}

.domain-input {
  width: 100%;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: var(--space-md);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-primary);
  resize: vertical;
  min-height: 100px;
  transition: border-color 0.2s var(--ease-out), box-shadow 0.2s var(--ease-out);
}

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

.domain-input:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.input-actions {
  margin-top: var(--space-md);
}

.checkbox-wrapper {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  cursor: pointer;
  user-select: none;
}

.checkbox-wrapper input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.checkbox-custom {
  width: 18px;
  height: 18px;
  border: 1.5px solid var(--text-muted);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s var(--ease-out);
}

.checkbox-wrapper input:checked + .checkbox-custom {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
}

.checkbox-wrapper input:checked + .checkbox-custom::after {
  content: '';
  width: 10px;
  height: 6px;
  border: 2px solid var(--bg-primary);
  border-top: none;
  border-right: none;
  transform: rotate(-45deg) translateY(-1px);
}

.checkbox-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.analyze-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  background: var(--accent-primary);
  color: var(--bg-primary);
  border: none;
  padding: var(--space-md) var(--space-xl);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s var(--ease-out);
  position: relative;
  overflow: hidden;
}

.analyze-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transform: translateX(-100%);
  transition: transform 0.5s var(--ease-out);
}

.analyze-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--accent-glow);
}

.analyze-btn:hover::before {
  transform: translateX(100%);
}

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

.analyze-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.btn-icon {
  display: flex;
  transition: transform 0.2s var(--ease-out);
}

.analyze-btn:hover .btn-icon {
  transform: translateX(4px);
}

/* Loading State */
.loading {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-xl);
  background: var(--bg-secondary);
  border-radius: 12px;
  margin-top: var(--space-lg);
}

.loading-spinner {
  width: 24px;
  height: 24px;
  border: 2px solid var(--border-medium);
  border-top-color: var(--accent-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.loading-text {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* Error Message */
.error-message {
  background: var(--poor-bg);
  border: 1px solid var(--poor);
  border-radius: 8px;
  padding: var(--space-md);
  margin-top: var(--space-lg);
  color: var(--poor);
  font-size: 0.9rem;
}

/* Results Section */
.results {
  animation: fadeInUp 0.5s var(--ease-out);
}

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

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

.results-title-group {
  display: flex;
  align-items: baseline;
  gap: var(--space-md);
}

.results-title {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 400;
}

.results-count {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  background: var(--bg-tertiary);
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
}

.export-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-medium);
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s var(--ease-out);
}

.export-btn:hover {
  color: var(--text-primary);
  border-color: var(--text-secondary);
  background: var(--bg-tertiary);
}

/* Results Table */
.table-container {
  background: var(--bg-secondary);
  border: 1px solid var(--border-medium);
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: var(--space-lg);
}

.results-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.results-table thead {
  background: var(--bg-tertiary);
}

.results-table th {
  text-align: left;
  padding: var(--space-md);
  font-weight: 500;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-subtle);
  white-space: nowrap;
}

.results-table th.sortable {
  cursor: pointer;
  user-select: none;
  transition: color 0.15s var(--ease-out);
}

.results-table th.sortable:hover {
  color: var(--text-secondary);
}

.results-table th.sortable.active {
  color: var(--accent-primary);
}

.sort-icon::after {
  content: '';
  display: inline-block;
  margin-left: 0.25rem;
  opacity: 0.4;
}

.results-table th.sortable.asc .sort-icon::after {
  content: '↑';
  opacity: 1;
}

.results-table th.sortable.desc .sort-icon::after {
  content: '↓';
  opacity: 1;
}

.results-table tbody tr {
  border-bottom: 1px solid var(--border-subtle);
  transition: background 0.15s var(--ease-out);
  cursor: pointer;
}

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

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

.results-table td {
  padding: var(--space-md);
  vertical-align: middle;
}

.domain-cell {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.domain-name {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-primary);
}

.cached-badge {
  font-size: 0.7rem;
  color: var(--text-muted);
}

.score-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 48px;
  padding: 0.35rem 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: 6px;
}

.score-badge.good {
  background: var(--good-bg);
  color: var(--good);
}

.score-badge.moderate {
  background: var(--moderate-bg);
  color: var(--moderate);
}

.score-badge.poor {
  background: var(--poor-bg);
  color: var(--poor);
}

.metric-value {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.metric-value.highlight {
  color: var(--text-primary);
}

.status-indicator {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  font-size: 0.9rem;
}

.status-indicator.good {
  background: var(--good-bg);
}

.status-indicator.moderate {
  background: var(--moderate-bg);
}

.status-indicator.poor {
  background: var(--poor-bg);
}

.error-cell {
  color: var(--poor);
  font-size: 0.8rem;
}

/* Legend */
.legend {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-lg);
  padding: var(--space-md);
  background: var(--bg-secondary);
  border-radius: 8px;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.legend-dot.good { background: var(--good); }
.legend-dot.moderate { background: var(--moderate); }
.legend-dot.poor { background: var(--poor); }

.legend-icon {
  display: flex;
  color: var(--text-muted);
}

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xl);
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(8px);
}

.modal-content {
  position: relative;
  background: var(--bg-secondary);
  border: 1px solid var(--border-medium);
  border-radius: 16px;
  max-width: 700px;
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
  animation: modalIn 0.3s var(--ease-out);
}

@keyframes modalIn {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(10px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.modal-close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: var(--space-sm);
  border-radius: 6px;
  transition: all 0.15s var(--ease-out);
}

.modal-close:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.modal-header {
  padding: var(--space-xl);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-title {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 500;
}

.modal-score {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 600;
}

.modal-score.good { color: var(--good); }
.modal-score.moderate { color: var(--moderate); }
.modal-score.poor { color: var(--poor); }

.modal-body {
  padding: var(--space-xl);
}

.breakdown-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.breakdown-item {
  background: var(--bg-tertiary);
  border-radius: 8px;
  padding: var(--space-md);
}

.breakdown-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: var(--space-xs);
}

.breakdown-value {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--text-primary);
}

.breakdown-bar {
  height: 4px;
  background: var(--bg-elevated);
  border-radius: 2px;
  margin-top: var(--space-sm);
  overflow: hidden;
}

.breakdown-bar-fill {
  height: 100%;
  background: var(--accent-primary);
  border-radius: 2px;
  transition: width 0.5s var(--ease-out);
}

.raw-data-title {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: var(--space-md);
}

.raw-data-content {
  background: var(--bg-tertiary);
  border-radius: 8px;
  padding: var(--space-md);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
  overflow-x: auto;
  max-height: 300px;
  line-height: 1.5;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border-subtle);
  padding: var(--space-lg) var(--space-xl);
  margin-top: auto;
}

.footer-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
}

.footer-text {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-divider {
  color: var(--border-medium);
}

/* Parse Table Button */
.parse-table-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.15s var(--ease-out);
  margin-left: auto;
}

.parse-table-btn:hover {
  color: var(--text-secondary);
  border-color: var(--border-medium);
  background: var(--bg-tertiary);
}

/* Parse Modal */
.modal-wide {
  max-width: 600px;
}

.parse-hint {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: var(--space-md);
}

.parse-textarea {
  width: 100%;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: var(--space-md);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-primary);
  resize: vertical;
  min-height: 150px;
}

.parse-textarea:focus {
  outline: none;
  border-color: var(--accent-primary);
}

.parse-result {
  margin-top: var(--space-md);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: var(--space-md);
}

.parse-result-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-sm);
}

.parse-result-header span {
  font-size: 0.85rem;
  color: var(--accent-primary);
  font-weight: 500;
}

.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  font-size: 0.75rem;
  padding: 4px 8px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.15s var(--ease-out);
}

.copy-btn:hover {
  color: var(--text-secondary);
  border-color: var(--border-medium);
}

.parsed-domains {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
  max-height: 200px;
  overflow-y: auto;
  margin: 0;
  line-height: 1.6;
}

.parse-actions {
  margin-top: var(--space-lg);
  display: flex;
  justify-content: flex-end;
}

.use-domains-btn {
  background: var(--accent-primary);
  color: var(--bg-primary);
  border: none;
  padding: var(--space-sm) var(--space-lg);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s var(--ease-out);
}

.use-domains-btn:hover:not(:disabled) {
  background: var(--accent-hover);
}

.use-domains-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* Utility Classes */
.hidden {
  display: none !important;
}

/* Responsive */
@media (max-width: 768px) {
  .main {
    padding: var(--space-md);
  }

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

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

  .input-container {
    padding: var(--space-md);
  }

  .results-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-md);
  }

  .table-container {
    overflow-x: auto;
  }

  .results-table {
    min-width: 700px;
  }

  .legend {
    flex-direction: column;
    gap: var(--space-sm);
  }

  .modal-content {
    max-height: 90vh;
  }

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