/* ============================================
   URBot Category Landing Pages
   Dark theme, card grid, responsive
   ============================================ */

:root {
  --bg: #0a0a1a;
  --bg-card: #111128;
  --bg-card-hover: #1a1a3a;
  --border: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(255, 255, 255, 0.12);
  --text: #e2e8f0;
  --text-dim: #94a3b8;
  --text-muted: #64748b;
  --accent: #00e5ff;
  --accent-glow: rgba(0, 229, 255, 0.15);
  --font: system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: 'Cascadia Code', 'Fira Code', 'Consolas', monospace;
  --cat-accent: #00e5ff;
  --radius: 12px;
  --radius-sm: 8px;
}

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

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---- Header ---- */
.cat-header {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 20px;
  background: rgba(15, 15, 35, 0.95);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 200;
  backdrop-filter: blur(12px);
}

.cat-logo {
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  text-decoration: none;
  letter-spacing: 0.05em;
}
.cat-logo:hover { text-decoration: none; }

.cat-header-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-dim);
  flex: 1;
}

.cat-nav {
  display: flex;
  align-items: center;
  gap: 12px;
}

.cat-nav-link {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: 6px;
  transition: background 0.2s, color 0.2s;
}
.cat-nav-link:hover {
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
  text-decoration: none;
}

/* ---- Hero ---- */
.cat-hero {
  position: relative;
  padding: 48px 24px 40px;
  text-align: center;
  overflow: hidden;
}

.cat-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--cat-accent);
}

.cat-hero::after {
  content: '';
  position: absolute;
  top: 4px;
  left: 0;
  right: 0;
  height: 120px;
  background: linear-gradient(180deg, color-mix(in srgb, var(--cat-accent) 8%, transparent) 0%, transparent 100%);
  pointer-events: none;
}

.cat-hero-icon {
  font-size: 48px;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}

.cat-hero-name {
  font-size: 32px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 8px;
  position: relative;
  z-index: 1;
}

.cat-hero-desc {
  font-size: 16px;
  color: var(--text-dim);
  max-width: 640px;
  margin: 0 auto 20px;
  line-height: 1.5;
  position: relative;
  z-index: 1;
}

.cat-hero-stats {
  display: flex;
  justify-content: center;
  gap: 32px;
  position: relative;
  z-index: 1;
}

.cat-stat {
  text-align: center;
}

.cat-stat-value {
  display: block;
  font-size: 24px;
  font-weight: 800;
  color: var(--cat-accent);
  font-family: var(--font-mono);
}

.cat-stat-label {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 2px;
}

/* ---- Main content ---- */
.cat-main {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px 60px;
}

/* ---- Bot Grid ---- */
.cat-grid-title {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin: 32px 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

.cat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

@media (min-width: 640px) {
  .cat-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 960px) {
  .cat-grid { grid-template-columns: repeat(4, 1fr); }
}

/* ---- Bot Card ---- */
.cat-bot-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 16px;
  text-align: center;
  transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
  cursor: default;
}

.cat-bot-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-hover);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.cat-bot-avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  margin: 0 auto 12px;
  background: rgba(255, 255, 255, 0.04);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.cat-bot-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cat-bot-avatar-fallback {
  font-size: 32px;
  color: var(--text-muted);
}

.cat-bot-name {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.cat-bot-tagline {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 10px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 34px;
}

.cat-bot-score {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  font-family: var(--font-mono);
  background: color-mix(in srgb, var(--cat-accent) 15%, transparent);
  color: var(--cat-accent);
  margin-bottom: 12px;
}

.cat-bot-links {
  display: flex;
  gap: 6px;
  justify-content: center;
  flex-wrap: wrap;
}

.cat-bot-link {
  font-size: 11px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-dim);
  transition: background 0.2s, color 0.2s;
  text-decoration: none;
}

.cat-bot-link:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  text-decoration: none;
}

.cat-bot-link--primary {
  background: color-mix(in srgb, var(--cat-accent) 20%, transparent);
  color: var(--cat-accent);
}

.cat-bot-link--primary:hover {
  background: color-mix(in srgb, var(--cat-accent) 35%, transparent);
  color: #fff;
}

/* ---- Related Categories ---- */
.cat-related-section {
  margin-top: 48px;
}

.cat-related-title {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

.cat-related-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

@media (min-width: 640px) {
  .cat-related-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 960px) {
  .cat-related-grid { grid-template-columns: repeat(4, 1fr); }
}

.cat-related-card {
  display: block;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px;
  text-decoration: none;
  transition: transform 0.2s, border-color 0.2s;
}

.cat-related-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-hover);
  text-decoration: none;
}

.cat-related-card-icon {
  font-size: 24px;
  margin-bottom: 6px;
}

.cat-related-card-name {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 2px;
}

.cat-related-card-count {
  font-size: 12px;
  color: var(--text-muted);
}

.cat-related-card-bar {
  height: 3px;
  border-radius: 2px;
  margin-top: 8px;
  background: rgba(255, 255, 255, 0.06);
  overflow: hidden;
}

.cat-related-card-bar-fill {
  height: 100%;
  border-radius: 2px;
  transition: width 0.4s ease;
}

/* ---- All Categories View ---- */
.cat-all-hero {
  padding: 48px 24px 32px;
  text-align: center;
}

.cat-all-hero h1 {
  font-size: 32px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 8px;
}

.cat-all-hero p {
  font-size: 16px;
  color: var(--text-dim);
  max-width: 540px;
  margin: 0 auto;
  line-height: 1.5;
}

.cat-all-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px 60px;
}

@media (min-width: 640px) {
  .cat-all-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 960px) {
  .cat-all-grid { grid-template-columns: repeat(4, 1fr); }
}

.cat-all-card {
  display: block;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 20px;
  text-align: center;
  text-decoration: none;
  transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
  position: relative;
  overflow: hidden;
}

.cat-all-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  text-decoration: none;
}

.cat-all-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--card-accent, var(--accent));
}

.cat-all-card-icon {
  font-size: 40px;
  margin-bottom: 10px;
}

.cat-all-card-name {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 6px;
}

.cat-all-card-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.4;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.cat-all-card-count {
  font-size: 13px;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--text-dim);
}

/* ---- Loading / Error States ---- */
.cat-loading {
  text-align: center;
  padding: 60px 24px;
  color: var(--text-muted);
}

.cat-loading-spinner {
  display: inline-block;
  width: 32px;
  height: 32px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: cat-spin 0.8s linear infinite;
  margin-bottom: 12px;
}

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

.cat-error {
  text-align: center;
  padding: 60px 24px;
  color: var(--text-muted);
}

.cat-error-icon {
  font-size: 40px;
  margin-bottom: 8px;
}

.cat-error-msg {
  font-size: 15px;
  margin-bottom: 16px;
}

.cat-error-link {
  font-size: 14px;
  font-weight: 600;
}

/* ---- CTA ---- */
.cat-cta {
  margin-top: 48px;
  text-align: center;
  padding: 32px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.cat-cta-title {
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 8px;
}

.cat-cta-desc {
  font-size: 14px;
  color: var(--text-dim);
  margin-bottom: 20px;
}

.cat-cta-btn {
  display: inline-block;
  padding: 12px 32px;
  background: var(--cat-accent);
  color: #0a0a1a;
  font-size: 15px;
  font-weight: 800;
  border-radius: 8px;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
}

.cat-cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px color-mix(in srgb, var(--cat-accent) 40%, transparent);
  text-decoration: none;
}

/* ---- Footer ---- */
.cat-footer {
  text-align: center;
  padding: 24px;
  color: var(--text-muted);
  font-size: 12px;
  border-top: 1px solid var(--border);
  margin-top: 40px;
}

.cat-footer a {
  color: var(--text-dim);
}

/* ---- Utility ---- */
.cat-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}