:root {
  /* Indigo Dark Theme */
  --bg-color: #0A0A1A;
  --surface: rgba(20, 20, 40, 0.7);
  --surface-hover: rgba(40, 40, 70, 0.8);
  --border-color: rgba(99, 102, 241, 0.2);
  --border-highlight: rgba(99, 102, 241, 0.5);
  
  --primary: #6366F1;
  --primary-hover: #4F46E5;
  --secondary: #818CF8;
  --accent: #22D3EE;
  
  --text-main: #F8FAFC;
  --text-muted: #94A3B8;
  
  --star-color: #F59E0B;
  
  --radius: 12px;
  --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 10px 25px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.2);
  
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --font-sans: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

body {
  background-color: var(--bg-color);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.5;
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
}

/* Utilities */
.hidden { display: none !important; }
.mb-sm { margin-bottom: 0.5rem; }
.mb-md { margin-bottom: 1rem; }
.mt-md { margin-top: 1rem; }
.text-secondary { color: var(--text-muted); }
.w-full { width: 100%; }

/* Glassmorphism */
.glass-header, .glass-panel {
  background: var(--surface);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
}

.glass-panel {
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

/* Typography */
h1, h2, h3, h4 { font-weight: 600; color: var(--text-main); }
h1 { font-size: 1.5rem; }
h2 { font-size: 1.25rem; }
h3 { font-size: 1rem; color: var(--secondary); margin-bottom: 0.75rem;}

/* Buttons */
button {
  font-family: var(--font-sans);
  cursor: pointer;
  border: none;
  background: none;
  border-radius: 8px;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 500;
  font-size: 0.875rem;
}

.btn-primary {
  background-color: var(--primary);
  color: white;
  padding: 0.5rem 1.2rem;
  box-shadow: 0 0 10px rgba(99, 102, 241, 0.4);
}
.btn-primary:hover {
  background-color: var(--primary-hover);
  box-shadow: 0 0 15px rgba(99, 102, 241, 0.6);
}

.btn-outline {
  border: 1px solid var(--border-highlight);
  color: var(--text-main);
  padding: 0.5rem 1rem;
}
.btn-outline:hover {
  background-color: rgba(99, 102, 241, 0.1);
  border-color: var(--primary);
}

.btn-sm {
  padding: 0.3rem 0.6rem;
  font-size: 0.75rem;
  border: 1px solid var(--border-color);
  color: var(--text-main);
}
.btn-sm:hover {
  background: rgba(255, 255, 255, 0.1);
}

.btn-icon {
  padding: 0.4rem;
  color: var(--text-muted);
}
.btn-icon:hover {
  color: var(--primary);
  background: rgba(99, 102, 241, 0.1);
}

.star-btn { transition: transform 0.2s; }
.star-btn.active .star-icon {
  fill: var(--star-color);
  stroke: var(--star-color);
}
.star-btn:hover { transform: scale(1.1); }

/* Layout */
.app-container {
  display: flex;
  flex-direction: column;
  height: 100vh;
}

/* Header */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border-color);
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.logo h1 { color: var(--text-main); }
.pulse-icon { animation: pulseGlow 3s infinite alternate; }

@keyframes pulseGlow {
  0% { filter: drop-shadow(0 0 2px var(--primary)); }
  100% { filter: drop-shadow(0 0 8px var(--primary)); }
}

.search-bar {
  flex: 1;
  max-width: 500px;
  position: relative;
  display: flex;
  align-items: center;
}
.search-bar svg {
  position: absolute;
  left: 1rem;
  color: var(--text-muted);
}
.search-bar input {
  width: 100%;
  padding: 0.6rem 1rem 0.6rem 2.5rem;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-color);
  border-radius: 999px;
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  outline: none;
  transition: var(--transition);
}
.search-bar input:focus {
  border-color: var(--primary);
  box-shadow: var(--shadow-glow);
}

.header-actions {
  display: flex;
  gap: 1rem;
}

/* Main Layout */
.main-content {
  display: flex;
  flex: 1;
  padding: 2rem;
  gap: 2rem;
  overflow: hidden;
}

/* Sidebar */
.sidebar {
  width: 250px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  height: max-content;
  max-height: calc(100vh - 6rem);
  overflow-y: auto;
}

.sidebar::-webkit-scrollbar { width: 6px; }
.sidebar::-webkit-scrollbar-thumb { background: var(--border-highlight); border-radius: 4px; }

.filter-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.filter-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.filter-list label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
}
.filter-list label:hover { color: var(--text-main); }

.filter-list input[type="radio"], .filter-list input[type="checkbox"] {
  accent-color: var(--primary);
  cursor: pointer;
}

/* Catalog Grid */
.catalog-section {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  padding-right: 1rem;
}

.catalog-section::-webkit-scrollbar { width: 8px; }
.catalog-section::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 4px; }

.catalog-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.results-count {
  color: var(--text-muted);
  font-size: 0.875rem;
}

.server-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
  padding-bottom: 2rem;
}

/* Card */
.server-card {
  display: flex;
  flex-direction: column;
  padding: 1.25rem;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.server-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-glow), var(--shadow-md);
  border-color: var(--primary);
  background: var(--surface-hover);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 0.75rem;
}

.card-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.card-author {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.badge {
  display: inline-block;
  padding: 0.2rem 0.5rem;
  background: rgba(99, 102, 241, 0.15);
  color: var(--secondary);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.card-body {
  flex: 1;
}

.card-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.capability-tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.cap-tag {
  font-size: 0.7rem;
  background: rgba(34, 211, 238, 0.1);
  color: var(--accent);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
}

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
  font-size: 0.8rem;
}

.platform-icons {
  display: flex;
  gap: 0.4rem;
  color: var(--text-muted);
}

.rating {
  display: flex;
  align-items: center;
  gap: 0.2rem;
  color: var(--star-color);
  font-weight: 600;
}

.card-star {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  z-index: 10;
}

/* Empty State */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 4rem 2rem;
  color: var(--text-muted);
  gap: 1rem;
}

/* Modals */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1.5rem;
  opacity: 1;
  transition: opacity 0.3s;
}

.modal-backdrop.hidden {
  opacity: 0;
  pointer-events: none;
}

.modal {
  width: 100%;
  max-width: 650px;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  display: flex;
  flex-direction: column;
}

.modal::-webkit-scrollbar { width: 6px; }
.modal::-webkit-scrollbar-thumb { background: var(--border-highlight); border-radius: 4px; }

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-size: 1.5rem;
  color: var(--text-muted);
  background: none;
  border: none;
  cursor: pointer;
}
.modal-close:hover { color: white; }

.modal-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--border-color);
}
.modal-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 0.5rem;
}
.modal-desc {
  color: var(--text-muted);
  margin-top: 1rem;
  font-size: 0.95rem;
}

.modal-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
}

/* Tabs */
.tabs {
  display: flex;
  gap: 1rem;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 1.5rem;
}

.tab-btn {
  background: transparent;
  border: none;
  padding: 0.5rem 0;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
  border-radius: 0;
}

.tab-btn.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.tab-content { display: none; }
.tab-content.active { display: block; animation: fadeIn 0.3s ease; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(5px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Code & Config */
.config-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
}

.config-controls select {
  background: rgba(0, 0, 0, 0.3);
  color: white;
  border: 1px solid var(--border-color);
  padding: 0.3rem 0.6rem;
  border-radius: 4px;
  outline: none;
  margin-left: 0.5rem;
  font-family: var(--font-sans);
}

pre {
  background: #000;
  padding: 1rem;
  border-radius: 8px;
  overflow-x: auto;
  border: 1px solid var(--border-color);
}
code {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: #A5B4FC;
}

.code-copy-wrapper {
  position: relative;
}
.code-copy-wrapper .btn-copy {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  background: rgba(255,255,255,0.1);
  border-radius: 4px;
}

.capability-detailed-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.capability-detailed-list li {
  background: rgba(0,0,0,0.2);
  padding: 1rem;
  border-radius: 8px;
  border-left: 3px solid var(--accent);
}
.capability-detailed-list h4 { margin-bottom: 0.25rem; font-size: 0.95rem; }
.capability-detailed-list p { font-size: 0.85rem; color: var(--text-muted); }

/* Forms */
.form-layout { display: flex; flex-direction: column; gap: 1rem; }
.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-group label { font-size: 0.85rem; color: var(--text-muted); }
.form-group input, .form-group select {
  background: rgba(0,0,0,0.3);
  border: 1px solid var(--border-color);
  padding: 0.75rem;
  border-radius: 6px;
  color: white;
  font-family: var(--font-sans);
  outline: none;
  transition: var(--transition);
}
.form-group input:focus, .form-group select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}

/* Toast */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--text-main);
  color: #000;
  padding: 0.75rem 1.5rem;
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 600;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5);
  z-index: 2000;
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.3s;
}

.toast.hidden {
  transform: translateX(-50%) translateY(20px);
  opacity: 0;
  pointer-events: none;
}

/* Responsive */
@media (max-width: 768px) {
  .main-content { flex-direction: column; padding: 1rem; }
  .sidebar { width: 100%; max-height: none; }
  .hide-mobile { display: none; }
  header { flex-direction: column; gap: 1rem; height: auto; padding: 1rem; }
}