/* ============================================
   SEO CHECKER — Dashboard Styles
   ============================================ */

:root {
  --color-bg: #0f172a;
  --color-bg-light: #1e293b;
  --color-bg-card: #1e293b;
  --color-bg-card-hover: #27354f;
  --color-primary: #3b82f6;
  --color-primary-light: #60a5fa;
  --color-primary-dark: #2563eb;
  --color-accent-green: #22c55e;
  --color-accent-red: #ef4444;
  --color-accent-yellow: #eab308;
  --color-accent-orange: #f97316;
  --color-accent-purple: #a855f7;
  --color-text: #f1f5f9;
  --color-text-muted: #94a3b8;
  --color-text-dim: #64748b;
  --color-border: #334155;
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: var(--font-main);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
}

/* Layout */
.dashboard-layout {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: 260px;
  background: var(--color-bg-light);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  position: fixed;
  height: 100vh;
  z-index: 100;
}

.sidebar-brand {
  padding: 24px;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-text);
  text-decoration: none;
}

.sidebar-brand span {
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-accent-green));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.sidebar-nav {
  flex: 1;
  padding: 16px 12px;
  list-style: none;
}

.sidebar-nav li {
  margin-bottom: 4px;
}

.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
  background: rgba(59,130,246,0.1);
  color: var(--color-text);
}

.sidebar-nav a.active {
  border-left: 3px solid var(--color-primary);
}

.sidebar-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--color-border);
  font-size: 0.75rem;
  color: var(--color-text-dim);
}

/* Main Content */
.main-content {
  flex: 1;
  margin-left: 260px;
  padding: 32px;
  max-width: calc(100% - 260px);
}

/* Header */
.page-header {
  margin-bottom: 32px;
}

.page-header h1 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.page-header p {
  color: var(--color-text-muted);
}

/* URL Input Section */
.url-input-section {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin-bottom: 32px;
}

.url-input-group {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
}

.url-input {
  flex: 1;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  color: var(--color-text);
  font-size: 1rem;
  font-family: var(--font-main);
  transition: var(--transition);
}

.url-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.15);
}

.url-input::placeholder {
  color: var(--color-text-dim);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  font-family: inherit;
}

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

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(59,130,246,0.4);
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.input-hint {
  color: var(--color-text-dim);
  font-size: 0.85rem;
}

/* Loading State */
.loading-state {
  text-align: center;
  padding: 60px 20px;
}

.spinner {
  width: 48px;
  height: 48px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 20px;
}

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

.loading-state p {
  color: var(--color-text-muted);
  margin-bottom: 8px;
}

.loading-progress {
  width: 200px;
  height: 6px;
  background: var(--color-border);
  border-radius: 3px;
  margin: 0 auto;
  overflow: hidden;
}

.loading-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent-green));
  border-radius: 3px;
  transition: width 0.3s ease;
}

/* Results Section */
.results-section {
  display: none;
}

.results-section.active {
  display: block;
}

/* Score Card */
.score-overview {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 24px;
  margin-bottom: 32px;
}

.score-circle {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: center;
}

.score-value {
  font-size: 4rem;
  font-weight: 800;
  font-family: var(--font-mono);
  line-height: 1;
}

.score-value.green { color: var(--color-accent-green); }
.score-value.yellow { color: var(--color-accent-yellow); }
.score-value.orange { color: var(--color-accent-orange); }
.score-value.red { color: var(--color-accent-red); }

.score-letter {
  font-size: 1.5rem;
  font-weight: 700;
  margin-top: 8px;
}

.score-label {
  font-size: 0.85rem;
  color: var(--color-text-dim);
  margin-top: 4px;
}

.score-details {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.score-details h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.score-breakdown {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.score-item {
  text-align: center;
  padding: 16px;
  background: var(--color-bg);
  border-radius: var(--radius-md);
}

.score-item-value {
  font-size: 1.8rem;
  font-weight: 700;
  font-family: var(--font-mono);
}

.score-item-value.green { color: var(--color-accent-green); }
.score-item-value.yellow { color: var(--color-accent-yellow); }
.score-item-value.orange { color: var(--color-accent-orange); }
.score-item-value.red { color: var(--color-accent-red); }

.score-item-label {
  font-size: 0.8rem;
  color: var(--color-text-dim);
  margin-top: 4px;
}

/* Category Cards */
.category-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 24px;
}

.category-card.full-width {
  grid-column: 1 / -1;
  margin-bottom: 24px;
}

.category-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.category-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.category-card-header h3 {
  font-size: 1.1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}

.category-score {
  font-size: 1.3rem;
  font-weight: 700;
  font-family: var(--font-mono);
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 0.9rem;
}

.category-score.green { background: rgba(34,197,94,0.15); color: var(--color-accent-green); }
.category-score.yellow { background: rgba(234,179,8,0.15); color: var(--color-accent-yellow); }
.category-score.orange { background: rgba(249,115,22,0.15); color: var(--color-accent-orange); }
.category-score.red { background: rgba(239,68,68,0.15); color: var(--color-accent-red); }

/* Metric List */
.metric-list {
  list-style: none;
}

.metric-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
}

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

.metric-name {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.metric-value {
  font-size: 0.9rem;
  font-weight: 600;
  font-family: var(--font-mono);
}

.metric-value.success { color: var(--color-accent-green); }
.metric-value.warning { color: var(--color-accent-yellow); }
.metric-value.error { color: var(--color-accent-red); }

/* Issues List */
.issues-list {
  list-style: none;
}

.issue-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
}

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

.issue-icon {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.issue-icon.error { background: rgba(239,68,68,0.2); color: var(--color-accent-red); }
.issue-icon.warning { background: rgba(234,179,8,0.2); color: var(--color-accent-yellow); }
.issue-icon.info { background: rgba(59,130,246,0.2); color: var(--color-primary-light); }

.issue-text {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.issue-category {
  font-size: 0.75rem;
  color: var(--color-text-dim);
  margin-top: 2px;
}

/* Recommendations */
.recommendations-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 32px;
}

.recommendations-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.recommendation-list {
  list-style: none;
}

.recommendation-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
}

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

.recommendation-number {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}

.recommendation-text {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  padding-top: 2px;
}

/* JSON Export */
.json-export {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.json-export h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.json-preview {
  background: #0d1117;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-text-muted);
  max-height: 300px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-all;
}

/* Error State */
.error-state {
  text-align: center;
  padding: 60px 20px;
}

.error-state-icon {
  font-size: 3rem;
  margin-bottom: 16px;
}

.error-state h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.error-state p {
  color: var(--color-text-muted);
}

/* Responsive */
@media (max-width: 1024px) {
  .sidebar {
    width: 200px;
  }
  .main-content {
    margin-left: 200px;
    max-width: calc(100% - 200px);
  }
  .score-overview {
    grid-template-columns: 1fr;
  }
  .category-grid {
    grid-template-columns: 1fr;
  }
  .score-breakdown {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .sidebar {
    display: none;
  }
  .main-content {
    margin-left: 0;
    max-width: 100%;
    padding: 20px;
  }
  .url-input-group {
    flex-direction: column;
  }
}