body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background: #f7f8fa;
    color: #1f2933;
}

.header {
    background: #ffffff;
    border-bottom: 4px solid #48B9B2;
    padding: 18px 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
}

.nav {
    display: flex;
    gap: 18px;
    flex-wrap: wrap;
    align-items: center;
}

.nav a {
    color: #003E43;
    text-decoration: none;
    font-weight: 600;
}

.nav a:hover {
    color: #48B9B2;
}

.container {
    max-width: 1200px;
    margin: 30px auto;
    padding: 0 24px;
}

.card {
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 24px;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

.stat {
    font-size: 32px;
    font-weight: 700;
    margin-top: 8px;
}

.button {
    display: inline-block;
    background: #111827;
    color: #ffffff;
    padding: 10px 16px;
    border-radius: 8px;
    text-decoration: none;
    border: none;
    cursor: pointer;
}

.button.secondary {
    background: #374151;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: #ffffff;
}

th {
    background: #f3f4f6;
    text-align: left;
}

th, td {
    border: 1px solid #e5e7eb;
    padding: 10px;
}

input, select, textarea {
    width: 100%;
    max-width: 100%;
    padding: 8px;
    margin-top: 4px;
    box-sizing: border-box;
}

form p {
    margin-bottom: 18px;
}

.alert {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 18px;
}

.alert-success {
    background: #ecfdf5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.alert-error {
    background: #fef2f2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.badge {
    display: inline-block;
    padding: 5px 10px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 700;
}

.badge-success {
    background: #ecfdf5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.badge-error {
    background: #fef2f2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.badge-warning {
    background: #fffbeb;
    color: #92400e;
    border: 1px solid #fde68a;
}

.badge-neutral {
    background: #f3f4f6;
    color: #374151;
    border: 1px solid #d1d5db;
}

.button {
    margin-right: 10px;
    margin-bottom: 10px;
}

.brand-link {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.brand-logo {
    height: 48px;
    width: auto;
    display: block;
}

.brand-text {
    font-weight: 700;
    color: #003E43;
    font-size: 1.35rem;
}

.page-header {
    margin-bottom: 28px;
}

.page-header h1 {
    color: #003E43;
    font-size: 32px;
    margin-bottom: 8px;
}

.page-header p {
    color: #4b5563;
    font-size: 16px;
    margin-top: 0;
}

.stat-card {
    border-top: 5px solid #48B9B2;
}

.stat-card strong {
    color: #003E43;
}

.dashboard-actions {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
    margin-bottom: 24px;
}

.action-card {
    border-top: 5px solid #FFD000;
}

.action-card h2 {
    color: #003E43;
    margin-top: 0;
}

.action-card p {
    color: #4b5563;
    min-height: 52px;
}

@media (max-width: 900px) {
    .card-grid,
    .dashboard-actions {
        grid-template-columns: repeat(2, 1fr);
    }

    .header {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 600px) {
    .card-grid,
    .dashboard-actions {
        grid-template-columns: 1fr;
    }

    .container {
        padding: 0 16px;
    }

    table {
        font-size: 14px;
    }
}