:root {
  --bg-primary: #121212;
  --bg-secondary: #1E1E1E;
  --bg-tertiary: #2A2A2A;
  --bg-card: #1a1a1a;
  --text-primary: #e0e0e0;
  --text-secondary: #a0a0a0;
  --text-muted: #666666;
  --accent: #00d4ff;
  --accent-hover: #33ddff;
  --border-color: #333333;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.6);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(18, 18, 18, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 40px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-primary);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.nav-brand .logo {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--accent), #0088aa);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  color: #000;
  font-size: 1rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: block;
  padding: 10px 18px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: 6px;
  transition: var(--transition);
  letter-spacing: 0.5px;
}

.nav-link:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

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

/* Dropdown Overlays */
.nav-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 8px;
  min-width: 220px;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  box-shadow: var(--shadow);
  pointer-events: none;
}

.nav-item:hover .nav-dropdown,
.nav-item.open .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
  pointer-events: all;
}

.nav-dropdown::before {
  content: '';
  position: absolute;
  top: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-bottom: 8px solid var(--border-color);
}

.nav-dropdown a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.85rem;
  border-radius: 8px;
  transition: var(--transition);
}

.nav-dropdown a:hover {
  background: rgba(0, 212, 255, 0.1);
  color: var(--accent);
}

.nav-dropdown a::before {
  content: '›';
  font-size: 1.2rem;
  color: var(--accent);
  opacity: 0;
  transition: var(--transition);
}

.nav-dropdown a:hover::before {
  opacity: 1;
}

/* Mobile Menu */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.mobile-menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: var(--transition);
}

.mobile-menu-toggle.open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.open span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle.open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Auth Buttons */
.nav-auth {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  letter-spacing: 0.5px;
}

.btn-primary {
  background: var(--accent);
  color: #000;
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 15px rgba(0, 212, 255, 0.3);
}

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

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-danger {
  background: #dc2626;
  color: #fff;
}

.btn-danger:hover {
  background: #ef4444;
}

.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 2px solid var(--accent);
  object-fit: cover;
}

.user-name {
  font-size: 0.85rem;
  color: var(--text-primary);
  font-weight: 500;
}

/* Main Content */
.main-content {
  padding-top: 64px;
  min-height: 100vh;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 24px;
}

.page-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: 1px;
}

.page-subtitle {
  color: var(--text-secondary);
  margin-bottom: 32px;
}

/* Hero Section */
.hero {
  text-align: center;
  padding: 120px 24px 80px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at center, rgba(0, 212, 255, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  letter-spacing: 2px;
  margin-bottom: 16px;
  background: linear-gradient(135deg, #fff 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 32px;
}

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 24px;
  transition: var(--transition);
}

.card:hover {
  border-color: rgba(0, 212, 255, 0.3);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.card-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-primary);
}

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

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 8px;
}

.card-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
  white-space: nowrap;
  margin-left: 12px;
}

/* Grid Layouts */
.grid {
  display: grid;
  gap: 20px;
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

/* Dashboard */
.dashboard-section {
  margin-bottom: 40px;
}

.section-title {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-color);
  color: var(--accent);
}

.dashboard-items {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.dashboard-card {
  border-left: 3px solid var(--accent);
}

.empty-state {
  color: var(--text-muted);
  font-style: italic;
}

.admin-controls {
  display: grid;
  gap: 20px;
  margin-bottom: 40px;
}

.form-card {
  border-left: 3px solid var(--accent);
}

.form-card .card-title {
  color: var(--accent);
}

/* Kanban Board */
.kanban-board {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  align-items: start;
}

.kanban-column {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 16px;
  min-height: 400px;
}

.kanban-column-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-color);
}

.kanban-column-header h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.kanban-count {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 0.8rem;
}

.kanban-cards {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 100px;
}

.kanban-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 16px;
  cursor: grab;
  transition: var(--transition);
  position: relative;
}

.kanban-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.kanban-card.dragging {
  opacity: 0.5;
  cursor: grabbing;
}

.kanban-card-title {
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--text-primary);
}

.kanban-card-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.kanban-card-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.kanban-card-actions {
  display: flex;
  gap: 8px;
}

.kanban-card-actions button {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.8rem;
  padding: 2px 6px;
  border-radius: 4px;
  transition: var(--transition);
}

.kanban-card-actions button:hover {
  color: var(--accent);
  background: rgba(0, 212, 255, 0.1);
}

.kanban-add-card {
  width: 100%;
  margin-top: 12px;
  padding: 10px;
  background: transparent;
  border: 1px dashed var(--border-color);
  color: var(--text-muted);
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition);
}

.kanban-add-card:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* Modal */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  z-index: 2000;
  align-items: center;
  justify-content: center;
}

.modal-overlay.active {
  display: flex;
}

.modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 24px;
  width: 90%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-title {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  margin-bottom: 6px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 0.9rem;
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent);
}

.modal-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  margin-top: 20px;
}

/* Blacklist */
.blacklist-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}

.blacklist-card {
  border-left: 3px solid #dc2626;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.blacklist-card .btn-danger {
  align-self: flex-start;
  margin-top: auto;
}

/* Responsive */
@media (max-width: 768px) {
  .navbar {
    padding: 0 16px;
    height: 56px;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    flex-direction: column;
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
    gap: 4px;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-item {
    width: 100%;
  }

  .nav-dropdown {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    pointer-events: all;
    background: transparent;
    border: none;
    box-shadow: none;
    padding: 4px 0 4px 16px;
    display: none;
  }

  .nav-item.open .nav-dropdown {
    display: block;
  }

  .nav-dropdown::before {
    display: none;
  }

  .mobile-menu-toggle {
    display: flex;
  }

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

  .container {
    padding: 24px 16px;
  }

  .kanban-board {
    grid-template-columns: 1fr;
  }

  .user-name {
    display: none;
  }
}

/* Admin Panel */
.admin-sections {
  display: grid;
  gap: 24px;
}

.admin-card {
  border-left: 3px solid var(--accent);
}

.members-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.member-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px;
  background: var(--bg-primary);
  border-radius: 8px;
  border: 1px solid var(--border-color);
  flex-wrap: wrap;
  gap: 8px;
}

.member-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.member-id {
  font-family: monospace;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.member-rank {
  font-weight: 600;
  color: var(--accent);
}

.member-permissions {
  display: flex;
  gap: 8px;
}

.badge {
  padding: 4px 8px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-success {
  background: rgba(0, 212, 255, 0.15);
  color: var(--accent);
}

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

.categories-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.category-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px;
  background: var(--bg-primary);
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

.category-icon {
  font-size: 1.2rem;
}

.category-name {
  font-weight: 600;
  flex: 1;
}

.category-id {
  font-family: monospace;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.8rem;
}