/* Repayment vs Interest Only Calculator Styles */
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; line-height: 1.6; color: #333; background: #ffffff; }

/* Header Design */
.main-header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 0;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    height: 70px;
}

.logo a {
    font-size: 26px;
    font-weight: 700;
    color: #204080;
    text-decoration: none;
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 12px;
    align-items: center;
}

.nav-links li {
    position: relative;
}

.nav-links a {
    color: #333;
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    padding: 14px 18px;
    border-radius: 10px;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.nav-links a:hover {
    color: #204080;
    background: rgba(32, 64, 128, 0.08);
}

.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    min-width: 250px;
    padding: 12px;
    margin-top: 8px;
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
}

.dropdown-menu a {
    display: block;
    padding: 12px 16px;
    color: #333;
    font-size: 15px;
    border-radius: 8px;
    margin: 2px 0;
}

.dropdown-menu a:hover {
    background: rgba(32, 64, 128, 0.08);
    color: #204080;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: #204080;
    font-size: 22px;
    cursor: pointer;
    padding: 8px;
}

/* Breadcrumb */
.breadcrumb { background: #f8f9ff; padding: 12px 0; }
.breadcrumb ol { list-style: none; display: flex; gap: 8px; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.breadcrumb a { color: #204080; text-decoration: none; font-size: 14px; }
.breadcrumb li:not(:last-child):after { content: "›"; margin-left: 8px; color: #666; }

/* Page Layout */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.page-header { background: linear-gradient(135deg, #f8f9ff 0%, #e8f2ff 100%); padding: 60px 0; text-align: center; }
.page-title { font-size: 42px; font-weight: 700; color: #1a1a1a; margin-bottom: 16px; letter-spacing: -1px; }
.page-subtitle { font-size: 20px; color: #204080; margin-bottom: 16px; font-weight: 600; }
.page-description { font-size: 18px; color: #666; max-width: 600px; margin: 0 auto; }
.main-content { max-width: 1000px; margin: 0 auto; padding: 60px 24px; }

/* Calculator Section */
.calculator-section { background: white; border-radius: 20px; padding: 40px; box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08); margin-bottom: 40px; border: 1px solid rgba(0, 0, 0, 0.05); }
.section-title { font-size: 28px; font-weight: 700; color: #204080; margin-bottom: 24px; text-align: center; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; margin-bottom: 32px; }
.input-group { margin-bottom: 24px; }
.input-label { display: block; font-weight: 600; color: #204080; margin-bottom: 8px; font-size: 16px; }
.input-wrapper { position: relative; }
.form-input { width: 100%; padding: 16px 20px; border: 2px solid #e5e5e5; border-radius: 12px; font-size: 16px; transition: all 0.2s ease; background: white; }
.form-input:focus { outline: none; border-color: #204080; box-shadow: 0 0 0 4px rgba(32, 64, 128, 0.1); }
.with-currency { padding-left: 48px; }
.with-percent { padding-right: 48px; }
.currency-symbol { position: absolute; left: 16px; top: 50%; transform: translateY(-50%); color: #666; font-weight: 600; }
.percent-symbol { position: absolute; right: 16px; top: 50%; transform: translateY(-50%); color: #666; font-weight: 600; }
.calculate-btn { background: linear-gradient(135deg, #204080 0%, #3366cc 100%); color: white; padding: 16px 32px; border: none; border-radius: 12px; font-size: 16px; font-weight: 600; cursor: pointer; transition: all 0.2s ease; width: 100%; }
.calculate-btn:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(32, 64, 128, 0.25); }

/* Results Section */
.results-section { display: none; background: linear-gradient(135deg, #f8f9ff 0%, #e8f2ff 100%); border-radius: 16px; padding: 32px; margin-top: 32px; }
.results-title { font-size: 24px; font-weight: 700; color: #204080; margin-bottom: 24px; text-align: center; }
.comparison-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; margin-bottom: 32px; }
.comparison-card { background: white; border-radius: 16px; padding: 24px; box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08); }
.comparison-card h3 { color: #204080; font-size: 20px; font-weight: 700; margin-bottom: 20px; text-align: center; }
.metric-item { display: flex; justify-content: space-between; padding: 12px 0; border-bottom: 1px solid #eee; }
.metric-item:last-child { border-bottom: none; }
.metric-label { color: #666; font-weight: 500; }
.metric-value { font-weight: 700; color: #204080; }
.savings-highlight { background: #f0fdf4; border: 2px solid #059669; border-radius: 12px; padding: 20px; margin-top: 24px; text-align: center; }
.savings-amount { font-size: 24px; font-weight: 700; color: #059669; margin-bottom: 8px; }
.savings-label { color: #166534; font-weight: 600; }

/* Info Section */
.info-section { background: #f8f9ff; border-radius: 16px; padding: 32px; margin-top: 40px; }
.info-title { font-size: 24px; font-weight: 700; color: #204080; margin-bottom: 24px; text-align: center; }
.info-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; }
.info-card { background: white; border-radius: 12px; padding: 24px; box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08); }
.info-card h3 { color: #204080; font-size: 18px; font-weight: 700; margin-bottom: 12px; }
.info-card ul { list-style: none; }
.info-card li { padding: 8px 0; color: #666; position: relative; }
.info-card li:before { content: "•"; color: #204080; font-weight: bold; position: absolute; left: -16px; }

/* Related Calculators */
.related-calculators { background: white; border-radius: 16px; padding: 32px; margin-top: 40px; box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08); }
.related-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 20px; margin-top: 20px; }
.related-card { display: block; background: #f8f9ff; border-radius: 12px; padding: 20px; text-decoration: none; color: #333; transition: all 0.2s ease; border: 2px solid transparent; }
.related-card:hover { border-color: #204080; transform: translateY(-2px); }
.related-card i { color: #204080; font-size: 24px; margin-bottom: 12px; }
.related-card span { font-weight: 600; }

/* FAQ Section */
.faq-section { margin-top: 40px; }
.faq-header { text-align: center; margin-bottom: 32px; }
.faq-header h2 { font-size: 28px; font-weight: 700; color: #204080; margin-bottom: 12px; }
.faq-header p { color: #666; font-size: 16px; }
.faq-container { background: white; border-radius: 16px; padding: 24px; box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08); }
.faq-item { border-bottom: 1px solid #eee; }
.faq-item:last-child { border-bottom: none; }
.faq-question { display: flex; justify-content: space-between; align-items: center; padding: 20px 0; cursor: pointer; transition: all 0.2s ease; }
.faq-question:hover { color: #204080; }
.faq-question h3 { font-size: 16px; font-weight: 600; margin: 0; }
.faq-question i { color: #204080; transition: transform 0.2s ease; }
.faq-item.active .faq-question i { transform: rotate(180deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
.faq-item.active .faq-answer { max-height: 500px; }
.faq-answer p { padding: 0 0 20px 0; color: #666; line-height: 1.6; }

/* Footer */
.main-footer {
    background: #1a1a1a;
    color: white;
    padding: 50px 0 25px;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
}

.footer-section h3 {
    color: #204080;
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 20px;
}

.footer-section p {
    color: #ccc;
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 0;
}

.footer-section ul {
    list-style: none;
    padding: 0;
}

.footer-section li {
    margin-bottom: 12px;
}

.footer-section a {
    color: #ccc;
    text-decoration: none;
    font-size: 16px;
    transition: color 0.2s ease;
}

.footer-section a:hover {
    color: #204080;
}

.footer-bottom {
    border-top: 1px solid #333;
    margin-top: 40px;
    padding-top: 20px;
    text-align: center;
}

.footer-bottom p {
    color: #999;
    font-size: 14px;
    margin: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 25px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
        gap: 0;
    }

    .nav-links.active {
        display: flex;
    }

    .nav-links li {
        width: 100%;
        border-bottom: 1px solid #eee;
    }

    .nav-links li:last-child {
        border-bottom: none;
    }

    .nav-links a {
        display: block;
        padding: 18px 0;
        width: 100%;
        font-size: 18px;
    }

    .mobile-menu-btn {
        display: block;
    }

    .dropdown-menu {
        position: static;
        transform: none;
        box-shadow: none;
        opacity: 1;
        visibility: visible;
        margin: 18px 0 0 25px;
        background: #f8f9fa;
        border: none;
    }

    .page-title { font-size: 32px; }
    .form-grid { grid-template-columns: 1fr; }
    .comparison-grid { grid-template-columns: 1fr; }
    .info-grid { grid-template-columns: 1fr; }
    .related-grid { grid-template-columns: 1fr; }
    .main-content { padding: 40px 24px; }
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}