/*body {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
    padding: 20px;
    font-family: 'Helvetica Neue', Arial, sans-serif;
}*/
/*.container {
    max-width: 800px;
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    padding: 30px;
    margin-top: 30px;
    margin-bottom: 30px;
}*/
.header {
    text-align: center;
    margin-bottom: 30px;
}
.header h1 {
    color: #3a3a3a;
    font-weight: 700;
    margin-bottom: 10px;
}
.header p {
    color: #6c757d;
    font-size: 1.1rem;
}
.card {
    border: none;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    margin-bottom: 25px;
    transition: transform 0.3s ease;
}
.card:hover {
    transform: translateY(-5px);
}
.card-header {
    background: linear-gradient(135deg, #6a11cb 0%, #2575fc 100%);
    color: white;
    border-radius: 12px 12px 0 0 !important;
    font-weight: 600;
    padding: 15px 20px;
    font-size: 1.2rem;
}
.card-body {
    padding: 25px;
}
.date-selector {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}
.date-selector select {
    padding: 10px 15px;
    border-radius: 8px;
    border: 1px solid #ced4da;
    width: 120px;
    text-align: center;
    font-size: 1rem;
}
.btn-convert {
    background: linear-gradient(135deg, #6a11cb 0%, #2575fc 100%);
    border: none;
    padding: 12px 30px;
    font-weight: 600;
    border-radius: 8px;
    margin-top: 15px;
    transition: all 0.3s;
}
.btn-convert:hover {
    transform: scale(1.05);
    box-shadow: 0 5px 15px rgba(38, 117, 252, 0.4);
}
.result-table {
    width: 100%;
    margin-bottom: 0;
}
.result-table td {
    padding: 14px 10px;
    border-top: none;
    border-bottom: 1px solid #f0f0f0;
    font-size: 1.05rem;
}
.result-table tr:last-child td {
    border-bottom: none;
}
.icon {
    color: #6a11cb;
    margin-right: 12px;
    font-size: 1.2rem;
    vertical-align: middle;
}
.footer {
    text-align: center;
    margin-top: 30px;
    color: #6c757d;
    font-size: 0.95rem;
}
.result-label {
    font-weight: 600;
    color: #495057;
}
.fade-in {
    animation: fadeIn 0.5s ease-in;
}
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
@media (max-width: 576px) {
    .date-selector {
        flex-direction: column;
        align-items: center;
    }
    .date-selector select {
        width: 100%;
        max-width: 200px;
    }
}