/* Admin Panel Styles */
:root {
    --admin-sidebar: #111827;
    --admin-accent: #6366f1;
    --admin-bg: #f3f4f6;
}

.admin-body {
    margin: 0;
    font-family: 'Segoe UI', system-ui, sans-serif;
    background: var(--admin-bg);
    min-height: 100vh;
}

.admin-shell {
    display: flex;
    min-height: 100vh;
}

.admin-sidebar {
    width: 260px;
    background: var(--admin-sidebar);
    color: #9ca3af;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}

.admin-sidebar .brand {
    padding: 1.25rem 1.5rem;
    color: #fff;
    font-weight: 700;
    font-size: 1.1rem;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.admin-sidebar nav a {
    display: block;
    padding: 0.7rem 1.5rem;
    color: #9ca3af;
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.2s;
    border-left: 3px solid transparent;
}

.admin-sidebar nav a:hover,
.admin-sidebar nav a.active {
    color: #fff;
    background: rgba(99, 102, 241, 0.15);
    border-left-color: var(--admin-accent);
}

.admin-main {
    margin-left: 260px;
    flex: 1;
    padding: 2rem;
}

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

.admin-card {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: #fff;
    border-radius: 12px;
    padding: 1.25rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

.stat-card .value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--admin-accent);
}

.stat-card .label {
    font-size: 0.8rem;
    color: #6b7280;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

.admin-table th,
.admin-table td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid #e5e7eb;
    font-size: 0.9rem;
}

.admin-table th {
    background: #f9fafb;
    font-weight: 600;
    color: #374151;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary { background: var(--admin-accent); color: #fff; }
.btn-primary:hover { background: #4f46e5; }
.btn-danger { background: #ef4444; color: #fff; }
.btn-secondary { background: #e5e7eb; color: #374151; }
.btn-sm { padding: 0.3rem 0.7rem; font-size: 0.8rem; }

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

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: #374151;
    margin-bottom: 0.4rem;
}

.form-control {
    width: 100%;
    padding: 0.6rem 0.85rem;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    font-size: 0.9rem;
    transition: border-color 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--admin-accent);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.alert-success {
    background: #d1fae5;
    color: #065f46;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
}

.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #111827 0%, #1f2937 100%);
}

.login-card {
    background: #fff;
    border-radius: 16px;
    padding: 2.5rem;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.login-card h1 {
    margin: 0 0 0.5rem;
    font-size: 1.5rem;
}

.login-card p {
    color: #6b7280;
    margin: 0 0 1.5rem;
    font-size: 0.9rem;
}

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

@media (max-width: 768px) {
    .admin-sidebar { transform: translateX(-100%); }
    .admin-main { margin-left: 0; }
}