:root {
    --color-gov-blue: #003366;
    --color-gov-green: #006633;
    --color-gov-yellow: #ffcc00;
    --color-accent: #00BFFF;
    --color-bg: #f4f7f9;
    --color-card: #ffffff;
    --color-text: #333333;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--color-bg);
    color: var(--color-text);
    margin: 0;
    padding: 20px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
}

.card {
    background: var(--color-card);
    border-radius: 16px;
    padding: 30px;
    box-shadow: var(--shadow);
    margin-bottom: 20px;
    border-top: 5px solid var(--color-gov-blue);
}

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

.header h1 {
    color: var(--color-gov-blue);
    font-size: 1.8rem;
    margin-bottom: 10px;
}

.header p {
    color: #666;
    font-size: 1rem;
}

.badge-2026 {
    background: var(--color-gov-yellow);
    color: #000;
    padding: 4px 12px;
    border-radius: 20px;
    font-weight: bold;
    font-size: 0.85rem;
    display: inline-block;
    margin-bottom: 10px;
}

.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--color-gov-blue);
}

select,
input {
    width: 100%;
    padding: 12px;
    border: 2px solid #e1e8ed;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s;
    box-sizing: border-box;
}

select:focus,
input:focus {
    outline: none;
    border-color: var(--color-accent);
}

.btn-calculate {
    background: linear-gradient(135deg, var(--color-gov-blue) 0%, #004d99 100%);
    color: white;
    border: none;
    padding: 15px 30px;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    width: 100%;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-calculate:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 51, 102, 0.3);
}

.result-box {
    margin-top: 30px;
    padding: 20px;
    border-radius: 12px;
    background: #f8fbff;
    border: 1px solid #d0e3ff;
    display: none;
}

.result-box.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

.amount-display {
    text-align: center;
    margin-bottom: 20px;
}

.amount-value {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-gov-green);
}

.amount-label {
    font-size: 0.9rem;
    color: #666;
}

.calendar-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
    font-size: 0.9rem;
}

.calendar-table th {
    background: #f1f4f8;
    color: var(--color-gov-blue);
    padding: 12px;
    text-align: left;
    border-bottom: 2px solid #e1e8ed;
}

.calendar-table td {
    padding: 12px;
    border-bottom: 1px solid #eee;
}

.highlight-row {
    background-color: #fff9e6 !important;
    font-weight: bold;
    border-left: 4px solid var(--color-gov-yellow);
}

.footer-info {
    text-align: center;
    font-size: 0.85rem;
    color: #999;
    margin-top: 40px;
}

.footer-info a {
    color: var(--color-gov-blue);
    text-decoration: none;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 600px) {
    .card {
        padding: 20px;
    }

    .amount-value {
        font-size: 2rem;
    }
}