:root {
    --bg-primary: #0a0a0c;
    --bg-secondary: #121216;
    --accent: #2563eb;
    --accent-hover: #1d4ed8;
    --text-primary: #ffffff;
    --text-secondary: #9ca3af;
    --border-color: rgba(255, 255, 255, 0.08);
    --glass-bg: rgba(18, 18, 22, 0.65);
    --glass-border: rgba(255, 255, 255, 0.06);
    --success: #10b981;
    --danger: #ef4444;
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
}

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

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-sans);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

/* Background Gradients */
.auth-bg-gradient {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 10% 20%, rgba(37, 99, 235, 0.12) 0%, transparent 40%),
                radial-gradient(circle at 90% 80%, rgba(37, 99, 235, 0.08) 0%, transparent 40%);
    z-index: -1;
    pointer-events: none;
}

/* Auth Container */
.auth-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.auth-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    width: 100%;
    max-width: 440px;
    border-radius: 16px;
    padding: 2.5rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.auth-logo i {
    color: var(--accent);
    width: 32px;
    height: 32px;
}

.auth-logo span {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #fff 0%, #a5b4fc 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

/* Forms */
.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.form-input {
    width: 100%;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    color: var(--text-primary);
    outline: none;
    transition: all 0.2s;
}

.form-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.2);
}

.btn-primary {
    width: 100%;
    background: var(--accent);
    color: white;
    border: none;
    border-radius: 8px;
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: all 0.2s;
}

.btn-primary:hover {
    background: var(--accent-hover);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.auth-alert {
    padding: 0.75rem 1rem;
    border-radius: 8px;
    font-size: 0.85rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.auth-alert.success {
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: #34d399;
}

.auth-alert.error {
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #f87171;
}

.auth-alert.dev {
    background: rgba(37, 99, 235, 0.15);
    border: 1px solid rgba(37, 99, 235, 0.3);
    color: #60a5fa;
    word-break: break-all;
}

/* Admin Dashboard layout */
.admin-container {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 2.5rem 1.5rem;
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.admin-title-group h1 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.admin-title-group p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.admin-nav {
    display: flex;
    gap: 0.75rem;
}

.btn-nav {
    background: var(--glass-bg);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-nav:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.15);
}

.btn-nav.active {
    background: var(--accent);
    border-color: var(--accent);
}

.btn-nav.danger:hover {
    background: rgba(239, 68, 68, 0.15);
    border-color: rgba(239, 68, 68, 0.3);
    color: #f87171;
}

/* Admin Stats Cards */
.admin-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.admin-stat-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    background: rgba(37, 99, 235, 0.15);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-icon.success {
    background: rgba(16, 185, 129, 0.15);
    color: var(--success);
}

.stat-icon.danger {
    background: rgba(239, 68, 68, 0.15);
    color: var(--danger);
}

.stat-details h3 {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 0.25rem;
}

.stat-details p {
    font-size: 1.6rem;
    font-weight: 700;
}

/* Tabs & Tables */
.admin-panel {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1rem;
}

.panel-header h2 {
    font-size: 1.2rem;
    font-weight: 600;
}

.table-responsive {
    width: 100%;
    overflow-x: auto;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.admin-table th, .admin-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.9rem;
}

.admin-table th {
    color: var(--text-secondary);
    font-weight: 500;
    background: rgba(0, 0, 0, 0.1);
}

.admin-table tr:hover td {
    background: rgba(255, 255, 255, 0.01);
}

.role-badge {
    display: inline-block;
    padding: 0.25rem 0.6rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.role-badge.admin {
    background: rgba(37, 99, 235, 0.15);
    color: #60a5fa;
    border: 1px solid rgba(37, 99, 235, 0.3);
}

.role-badge.user {
    background: rgba(156, 163, 175, 0.15);
    color: #d1d5db;
    border: 1px solid rgba(156, 163, 175, 0.3);
}

/* Action buttons */
.btn-action-sm {
    padding: 0.35rem 0.75rem;
    font-size: 0.8rem;
    font-weight: 500;
    border-radius: 4px;
    cursor: pointer;
    border: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-primary);
    transition: all 0.2s;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.btn-action-sm:hover {
    background: rgba(255, 255, 255, 0.1);
}

.btn-action-sm.danger {
    color: #f87171;
    border-color: rgba(239, 68, 68, 0.2);
}

.btn-action-sm.danger:hover {
    background: rgba(239, 68, 68, 0.15);
    border-color: rgba(239, 68, 68, 0.4);
}

.btn-action-sm.accent {
    color: #60a5fa;
    border-color: rgba(37, 99, 235, 0.2);
}

.btn-action-sm.accent:hover {
    background: rgba(37, 99, 235, 0.15);
    border-color: rgba(37, 99, 235, 0.4);
}

.actions-cell {
    display: flex;
    gap: 0.5rem;
}