* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
    color: #333;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    overflow: hidden;
}

header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 40px;
    text-align: center;
}

header h1 {
    font-size: 2.5em;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

header p {
    font-size: 1.1em;
    opacity: 0.9;
}

.main-content {
    padding: 40px;
}

.calculator-section {
    background: #f8f9fa;
    padding: 30px;
    border-radius: 15px;
    margin-bottom: 30px;
}

.calculator-section h2 {
    color: #667eea;
    margin-bottom: 25px;
    font-size: 1.8em;
}

.loan-form {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: 600;
    margin-bottom: 8px;
    color: #555;
    display: flex;
    align-items: center;
    gap: 8px;
}

.form-group input,
.form-group select {
    padding: 12px 15px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1em;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.btn-calculate {
    grid-column: 1 / -1;
    padding: 15px 30px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.1em;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.btn-calculate:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.3);
}

.btn-calculate:active {
    transform: translateY(0);
}

.results-section {
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.results-section h2 {
    color: #667eea;
    margin-bottom: 25px;
    font-size: 1.8em;
}

.summary-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.summary-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 25px;
    border-radius: 15px;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
    transition: transform 0.2s ease;
}

.summary-card:hover {
    transform: translateY(-5px);
}

.card-icon {
    font-size: 2.5em;
    opacity: 0.9;
}

.card-content h3 {
    font-size: 0.9em;
    opacity: 0.9;
    margin-bottom: 5px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.card-content .amount {
    font-size: 1.8em;
    font-weight: bold;
}

.payment-schedule {
    margin-top: 40px;
}

.schedule-controls {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.btn-export,
.btn-print {
    padding: 12px 25px;
    border: none;
    border-radius: 8px;
    font-size: 1em;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-export {
    background: #28a745;
    color: white;
}

.btn-export:hover {
    background: #218838;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(40, 167, 69, 0.3);
}

.btn-print {
    background: #17a2b8;
    color: white;
}

.btn-print:hover {
    background: #138496;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(23, 162, 184, 0.3);
}

.table-container {
    overflow-x: auto;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

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

thead {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

th {
    padding: 15px;
    text-align: left;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85em;
    letter-spacing: 0.5px;
}

tbody tr {
    border-bottom: 1px solid #e0e0e0;
    transition: background 0.2s ease;
}

tbody tr:hover {
    background: #f8f9fa;
}

tbody tr:nth-child(even) {
    background: #f8f9fa;
}

tbody tr:nth-child(even):hover {
    background: #e9ecef;
}

td {
    padding: 12px 15px;
    color: #555;
}

td:last-child {
    font-weight: 600;
    color: #667eea;
}

footer {
    background: #f8f9fa;
    padding: 20px;
    text-align: center;
    color: #666;
    border-top: 1px solid #e0e0e0;
}

@media (max-width: 768px) {
    header h1 {
        font-size: 1.8em;
    }

    .main-content {
        padding: 20px;
    }

    .loan-form {
        grid-template-columns: 1fr;
    }

    .summary-cards {
        grid-template-columns: 1fr;
    }

    th, td {
        padding: 8px;
        font-size: 0.85em;
    }
}

@media print {
    body {
        background: white;
    }

    .container {
        box-shadow: none;
    }

    .calculator-section,
    .schedule-controls,
    footer {
        display: none;
    }

    .results-section {
        display: block !important;
    }
}