html, body {
    margin: 0;
    padding: 0;
    font-family: Arial, Helvetica, sans-serif;
    background-color: #f4f6fb;
}

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

.sidebar {
    width: 250px;
    background: linear-gradient(180deg, #1e3c72, #2a0845);
    color: white;
    padding: 20px;
}

.brand {
    margin-bottom: 30px;
}

    .brand h5 {
        margin: 0;
        font-weight: 700;
    }

    .brand small {
        opacity: 0.9;
    }

.nav-link {
    color: white;
    margin-bottom: 10px;
    border-radius: 8px;
    padding: 10px 12px;
}

    .nav-link:hover {
        color: white;
        background-color: rgba(255, 255, 255, 0.12);
    }

    .nav-link.active {
        background-color: rgba(255,255,255,0.2);
        border-radius: 8px;
        color: white;
    }

.main {
    flex: 1;
    background-color: #f5f6fa;
}

.topbar {
    background: white;
    padding: 15px 20px;
    border-bottom: 1px solid #ddd;
    font-weight: 600;
}

.page-card {
    background: white;
    border-radius: 14px;
    box-shadow: 0 3px 14px rgba(0, 0, 0, 0.08);
    padding: 20px;
}

.page-title {
    margin-bottom: 20px;
    font-weight: 700;
}

.filters-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 16px;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
}

.summary-bar {
    display: flex;
    justify-content: space-between;
    margin-top: 14px;
    font-weight: 600;
}

@media (max-width: 992px) {
    .filters-grid,
    .form-grid {
        grid-template-columns: 1fr;
    }
}

.form-wrapper {
    display: flex;
    justify-content: center;
    align-items: flex-start;
}

.form-card {
    width: 100%;
    max-width: 900px;
}

.form-title {
    text-align: center;
    margin-bottom: 20px;
    font-weight: 700;
}

.form-label {
    font-weight: 600;
    margin-bottom: 6px;
    display: block;
}

.section-title {
    font-weight: 700;
    margin-bottom: 14px;
}

.form-actions {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 24px;
}