/* Personal Loan Payment Calculator - CSS Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Styles */
header {
    background: linear-gradient(135deg, #2c3e50, #1a2a3a);
    color: white;
    padding: 1rem 0;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    position: sticky;
    top: 0;
    z-index: 100;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

header h1 {
    font-size: 1.8rem;
    margin: 0;
    text-align: left;
    font-weight: bold;
    letter-spacing: 1px;
}

.logo-link {
    background: linear-gradient(to right, #3498db, #2ecc71);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
    text-decoration: none;
    display: block;
}

nav ul {
    display: flex;
    list-style: none;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
    margin: 0;
}

nav ul li a {
    color: #ecf0f1;
    text-decoration: none;
    padding: 10px 16px;
    border-radius: 30px;
    transition: all 0.3s ease;
    font-weight: 500;
    border: 1px solid transparent;
}

nav ul li a:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

nav ul li a.active {
    background-color: #3498db;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

/* Dropdown styles */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-content {
    display: none;
    position: absolute;
    background-color: #1a2a3a;
    min-width: 250px;
    box-shadow: 0 8px 16px rgba(0,0,0,0.2);
    z-index: 101;
    border-radius: 5px;
    overflow: hidden;
}

.dropdown-content a {
    color: #ecf0f1;
    padding: 12px 16px;
    text-decoration: none;
    display: block;
    transition: background-color 0.3s;
}

.dropdown-content a:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.dropdown:hover .dropdown-content {
    display: block;
}

.dropbtn {
    color: #ecf0f1;
    text-decoration: none;
    padding: 10px 16px;
    border-radius: 30px;
    transition: all 0.3s ease;
    font-weight: 500;
    border: 1px solid transparent;
}

/* Main Content */
main {
    padding: 2rem 0;
}

.calculator-section {
    background: white;
    border-radius: 10px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.calculator-section h2 {
    color: #1a3a6c;
    margin-bottom: 1rem;
    font-size: 1.8rem;
}

.calculator-form {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

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

.input-group label {
    margin-bottom: 0.5rem;
    font-weight: bold;
    color: #444;
}

.input-group input,
.input-group select {
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.input-group input:focus,
.input-group select:focus {
    outline: none;
    border-color: #2c5aa0;
    box-shadow: 0 0 0 2px rgba(44, 90, 160, 0.2);
}

.calculate-btn {
    background: linear-gradient(135deg, #2c5aa0, #1a3a6c);
    color: white;
    border: none;
    padding: 14px 20px;
    font-size: 1.1rem;
    border-radius: 5px;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    grid-column: 1 / -1;
    max-width: 250px;
    margin: 1rem auto;
}

.calculate-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(44, 90, 160, 0.3);
}

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

/* Results Container */
.results-container {
    margin-top: 2rem;
    padding: 1.5rem;
    background-color: #f0f7ff;
    border-radius: 8px;
    border-left: 4px solid #2c5aa0;
}

.results-container h3 {
    color: #1a3a6c;
    margin-bottom: 1.5rem;
    text-align: center;
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.summary-item {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 3px 10px rgba(0,0,0,0.08);
}

.summary-item h4 {
    color: #666;
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.summary-item p {
    font-size: 1.5rem;
    font-weight: bold;
    color: #1a3a6c;
}

.chart-container {
    height: 300px;
    margin: 2rem 0;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Amortization Table */
.amortization-section {
    margin-top: 2rem;
}

.amortization-section h3 {
    color: #1a3a6c;
    margin-bottom: 1rem;
}

.table-container {
    overflow-x: auto;
}

#amortization-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

#amortization-table th,
#amortization-table td {
    padding: 10px;
    text-align: right;
    border-bottom: 1px solid #ddd;
}

#amortization-table th {
    background-color: #2c5aa0;
    color: white;
    position: sticky;
    top: 0;
}

#amortization-table tr:nth-child(even) {
    background-color: #f8f9fa;
}

#amortization-table tr:hover {
    background-color: #eef2f7;
}

/* Description Section */
.description-section {
    background: white;
    border-radius: 10px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.description-section h2 {
    color: #1a3a6c;
    margin-bottom: 1.5rem;
    font-size: 1.8rem;
}

.description-section h3 {
    color: #2c5aa0;
    margin: 1.5rem 0 1rem 0;
}

.description-section p {
    margin-bottom: 1rem;
}

.description-section ol,
.description-section ul {
    margin: 1rem 0;
    padding-left: 1.5rem;
}

.description-section li {
    margin-bottom: 0.5rem;
}

/* FAQ Section */
.faq-section {
    background: white;
    border-radius: 10px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.faq-section h2 {
    color: #1a3a6c;
    margin-bottom: 1.5rem;
    font-size: 1.8rem;
}

.faq-container details {
    margin-bottom: 1rem;
    border: 1px solid #e1e5eb;
    border-radius: 5px;
    padding: 10px;
}

.faq-container summary {
    font-weight: bold;
    color: #1a3a6c;
    cursor: pointer;
    padding: 10px;
    background-color: #f8f9fa;
    border-radius: 4px;
    outline: none;
}

.faq-container summary:hover {
    background-color: #eef2f7;
}

.faq-container p {
    padding: 15px;
    margin: 0;
}

/* Footer */
footer {
    background: #1a3a6c;
    color: white;
    padding: 2rem 0;
    margin-top: 2rem;
}

footer .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.footer-links {
    margin-top: 1rem;
}

.footer-links a {
    color: white;
    text-decoration: none;
    margin: 0 10px;
}

.footer-links a:hover {
    text-decoration: underline;
}

/* Utility Classes */
.hidden {
    display: none;
}

.print-only {
    display: none;
}

/* Mobile Menu */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: white;
    margin: 3px 0;
    transition: 0.3s;
}

.nav-menu {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: #1a2a3a;
    z-index: 100;
    box-shadow: 0 10px 15px rgba(0,0,0,0.1);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.nav-menu.active {
    max-height: 500px;
}

.nav-menu ul {
    display: flex;
    flex-direction: column;
    list-style: none;
    padding: 0;
    margin: 0;
}

.nav-menu ul li {
    width: 100%;
}

.nav-menu ul li a {
    color: white;
    text-decoration: none;
    padding: 15px 20px;
    display: block;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.nav-menu ul li a:hover {
    background-color: rgba(255,255,255,0.1);
}

.dropdown-content-mobile {
    display: none;
    background-color: #2c3e50;
    list-style: none;
    margin: 0;
    padding: 0;
}

.dropdown-content-mobile a {
    color: white;
    padding: 12px 20px;
    text-decoration: none;
    display: block;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.dropdown-content-mobile a:hover {
    background-color: rgba(255,255,255,0.1);
}

/* Responsive Design */
@media (max-width: 768px) {
    header .container {
        flex-direction: column;
        text-align: center;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    nav ul {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: #1a2a3a;
        z-index: 100;
        flex-direction: column;
        margin: 0;
        padding: 0;
        box-shadow: 0 10px 15px rgba(0,0,0,0.1);
    }
    
    nav ul.show {
        display: flex;
    }
    
    nav ul li {
        width: 100%;
        border-bottom: 1px solid rgba(255,255,255,0.1);
    }
    
    nav ul li a {
        padding: 15px 20px;
        display: block;
    }
    
    .dropdown-content {
        position: static;
        display: none;
        background-color: #2c3e50;
        box-shadow: none;
        border-radius: 0;
        overflow: visible;
    }
    
    .dropdown:hover .dropdown-content {
        display: none; /* Disable hover effect on mobile */
    }
    
    .dropdown.active .dropdown-content {
        display: block;
    }
    
    .calculator-form {
        grid-template-columns: 1fr;
    }
    
    .summary-grid {
        grid-template-columns: 1fr;
    }
    
    .chart-container {
        height: 200px;
    }
    
    #amortization-table {
        font-size: 0.9rem;
    }
    
    #amortization-table th,
    #amortization-table td {
        padding: 6px;
    }
}

@media print {
    body * {
        visibility: hidden;
    }
    
    .print-container,
    .print-container * {
        visibility: visible;
    }
    
    .print-container {
        position: absolute;
        left: 0;
        top: 0;
        width: 100%;
    }
    
    .print-only {
        display: block !important;
    }
    
    .no-print {
        display: none !important;
    }
}

/* Animation for results */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.results-container:not(.hidden) {
    animation: fadeIn 0.5s ease-out;
}