:root {
  --bg-primary: #0a0e17;
  --bg-secondary: #121926;
  --bg-tertiary: #1b2436;
  
  --accent-primary: #00f2fe;
  --accent-secondary: #4facfe;
  --accent-neon: #39ff14;
  
  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --text-dark: #111827;
  
  --border-color: rgba(255, 255, 255, 0.08);
  --glass-bg: rgba(18, 25, 38, 0.65);
  --glass-border: rgba(255, 255, 255, 0.05);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  
  --error: #ef4444;
  --success: #10b981;
  --warning: #f59e0b;
}

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

body {
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-family: 'Outfit', 'Inter', -apple-system, sans-serif;
  min-height: 100vh;
  display: flex;
  overflow-x: hidden;
}

/* Auth Login Screen */
.auth-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100vw;
  height: 100vh;
  background: radial-gradient(circle at center, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

.auth-card {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  border-radius: 16px;
  padding: 40px;
  width: 100%;
  max-width: 420px;
  border-top: 4px solid var(--accent-primary);
}

.auth-header {
  text-align: center;
  margin-bottom: 30px;
}

.auth-logo {
  font-size: 1.8rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 8px;
}

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

/* Form Styles */
.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.form-input {
  width: 100%;
  padding: 12px 16px;
  border-radius: 8px;
  background-color: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  outline: none;
  font-size: 0.95rem;
  transition: all 0.2s ease;
}

.form-input:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 10px rgba(0, 242, 254, 0.15);
}

.btn-primary {
  width: 100%;
  padding: 12px;
  border-radius: 8px;
  border: none;
  background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
  color: var(--bg-primary);
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.btn-primary:hover {
  transform: translateY(-1px);
  opacity: 0.95;
}

.alert {
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 0.9rem;
  margin-bottom: 20px;
  border: 1px solid transparent;
}

.alert-danger {
  background-color: rgba(239, 68, 68, 0.1);
  color: var(--error);
  border-color: rgba(239, 68, 68, 0.2);
}

/* Dashboard Core Layout */
.app-container {
  display: flex;
  width: 100%;
  min-height: 100vh;
  position: relative;
}

/* Sidebar Styling */
.app-sidebar {
  width: 260px;
  background-color: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  height: 100vh;
  position: fixed;
  left: 0;
  top: 0;
  z-index: 100;
  transition: transform 0.3s ease;
}

.sidebar-header {
  padding: 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sidebar-brand {
  font-weight: 700;
  font-size: 1.25rem;
  background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: flex;
  align-items: center;
  gap: 8px;
}

.sidebar-brand span.badge {
  font-size: 0.65rem;
  background: rgba(0, 242, 254, 0.15);
  color: var(--accent-primary);
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid rgba(0, 242, 254, 0.2);
}

.sidebar-nav {
  list-style: none;
  padding: 20px 12px;
  flex-grow: 1;
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  color: var(--text-muted);
  text-decoration: none;
  border-radius: 8px;
  font-weight: 500;
  margin-bottom: 8px;
  transition: all 0.2s ease;
  font-size: 0.95rem;
}

.sidebar-link:hover, .sidebar-link.active {
  background-color: var(--bg-tertiary);
  color: var(--accent-primary);
}

.sidebar-footer {
  padding: 20px;
  border-top: 1px solid var(--border-color);
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
}

.sidebar-logout {
  margin-left: auto;
  color: var(--error);
  text-decoration: none;
  font-size: 1.1rem;
}

/* Main Content Area */
.app-content {
  flex-grow: 1;
  margin-left: 260px;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  position: relative;
  width: calc(100% - 260px);
}

/* Header Styling */
.app-header {
  height: 70px;
  border-bottom: 1px solid var(--border-color);
  background-color: rgba(10, 14, 23, 0.8);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 30px;
  position: sticky;
  top: 0;
  z-index: 90;
}

.header-title h2 {
  font-size: 1.25rem;
  font-weight: 600;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 15px;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-main);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Dashboard Body & Grid */
.dashboard-body {
  padding: 30px;
  flex-grow: 1;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-bottom: 30px;
}

.stat-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.stat-info h3 {
  font-size: 0.8rem;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.5px;
  margin-bottom: 6px;
}

.stat-info .value {
  font-size: 1.8rem;
  font-weight: 700;
}

.stat-icon {
  font-size: 2rem;
  background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Glass Panels */
.glass-panel {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  border-radius: 14px;
  padding: 24px;
  margin-bottom: 30px;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 15px;
}

.panel-header h3 {
  font-size: 1.1rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Table Style */
.table-responsive {
  overflow-x: auto;
  width: 100%;
}

.custom-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.9rem;
}

.custom-table th {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.custom-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-color);
}

.custom-table tbody tr:hover {
  background-color: rgba(255, 255, 255, 0.02);
}

.badge-status {
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.badge-active {
  background-color: rgba(16, 185, 129, 0.15);
  color: var(--success);
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.badge-trial {
  background-color: rgba(245, 158, 11, 0.15);
  color: var(--warning);
  border: 1px solid rgba(245, 158, 11, 0.2);
}

.badge-suspended {
  background-color: rgba(239, 68, 68, 0.15);
  color: var(--error);
  border: 1px solid rgba(239, 68, 68, 0.2);
}

/* Buttons */
.btn-action {
  padding: 6px 12px;
  font-size: 0.8rem;
  border-radius: 6px;
  cursor: pointer;
  border: none;
  background-color: var(--bg-tertiary);
  color: var(--text-main);
  transition: all 0.2s;
  text-decoration: none;
}

.btn-action:hover {
  background-color: var(--accent-secondary);
  color: var(--bg-primary);
}

.btn-delete {
  background-color: rgba(239, 68, 68, 0.1);
  color: var(--error);
  border: 1px solid rgba(239, 68, 68, 0.2);
}

.btn-delete:hover {
  background-color: var(--error);
  color: var(--text-main);
}

.btn-edit {
  background-color: rgba(99, 102, 241, 0.1);
  color: #818cf8;
  border: 1px solid rgba(99, 102, 241, 0.2);
  margin-right: 4px;
}

.btn-edit:hover {
  background-color: #6366f1;
  color: var(--text-main);
}

.btn-add {
  padding: 8px 16px;
  background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
  color: var(--bg-primary);
  font-weight: bold;
  border-radius: 6px;
  border: none;
  cursor: pointer;
  font-size: 0.85rem;
}

.btn-add:hover {
  opacity: 0.9;
}

/* Footer Styling */
.app-footer {
  padding: 20px 30px;
  border-top: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: auto;
}

.footer-brand {
  font-weight: 600;
  color: var(--text-main);
}

/* Modal System */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  z-index: 150;
  justify-content: center;
  align-items: center;
}

.modal-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
  border-radius: 12px;
  width: 90%;
  max-width: 500px;
  border-top: 4px solid var(--accent-primary);
  overflow: hidden;
}

.modal-header {
  padding: 20px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h3 {
  font-size: 1.1rem;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.25rem;
  cursor: pointer;
}

.modal-body {
  padding: 20px;
}

.modal-footer {
  padding: 15px 20px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

.btn-secondary {
  padding: 10px 16px;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  border-radius: 6px;
  cursor: pointer;
}

/* Settings Form Grid */
.settings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

/* Search and Filter Row */
.filter-row {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.filter-input {
  padding: 10px 16px;
  border-radius: 8px;
  background-color: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  outline: none;
  font-size: 0.9rem;
  flex-grow: 1;
  max-width: 300px;
}

.filter-select {
  padding: 10px 16px;
  border-radius: 8px;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  outline: none;
  font-size: 0.9rem;
}

/* Responsive Breakpoints */
@media (max-width: 992px) {
  .app-sidebar {
    transform: translateX(-100%);
  }
  
  .app-sidebar.open {
    transform: translateX(0);
  }
  
  .app-content {
    margin-left: 0;
    width: 100%;
  }
  
  .menu-toggle {
    display: block;
    margin-right: 15px;
  }
  
  .app-header {
    padding: 0 20px;
  }
  
  .dashboard-body {
    padding: 20px;
  }
}

@media (max-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .app-header {
    height: 60px;
  }
  
  .app-footer {
    flex-direction: column;
    gap: 10px;
    text-align: center;
    padding: 15px 20px;
  }
  
  .panel-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
  
  .btn-add {
    width: 100%;
  }
  
  .filter-row {
    flex-direction: column;
    align-items: stretch;
  }
  
  .filter-input {
    max-width: 100%;
  }
}