:root {
            --primary-color:#274c77;
            --secondary-color: #6096ba;
            --accent-color: #274c77;
            --light-color: #f8f9fa;
            --dark-color: #212529;
            --success-color: #4cc9f0;
            --warning-color: #f72585;
            --border-radius: 8px;
            --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }

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

        body {
            font-family: 'Poppins', sans-serif;
        background: url('/theme/image/background.svg') no-repeat center center fixed;
        background-color: #f0f3fb;
        background-size: cover;
        line-height: 1.6;
        color: var(--dark-color);
        padding-top: 60px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        .divhead {
            background-color:#e7ecef;
            color:#274c77;
            padding: 1rem 0;
            box-shadow: var(--box-shadow);
            position: relative;
            top: 0;
            z-index: 100;
        }

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

        .logo {
            font-size: 1.8rem;
            font-weight: 700;
            display: flex;
            align-items: center;
        }

        .logo i {
            margin-right: 10px;
            color: var(--success-color);
        }

        nav ul {
            display: flex;
            list-style: none;
        }

        nav ul li {
            margin-left: 1.5rem;
        }

        nav ul li a {
            color:#274c77;
            text-decoration: none;
            font-weight: 500;
            transition: var(--transition);
            padding: 0.5rem 0;
            border-bottom: 2px solid transparent;
        }

        nav ul li a:hover {
            border-bottom: 2px solid var(--success-color);
        }

        .hero {
            text-align: center;
            padding: 3rem 0;
            background: transparent;                    }

        .hero h1 {
            font-size: 2.5rem;
            margin-bottom: 1rem;
            color: var(--secondary-color);
        }

        .hero p {
            font-size: 1.1rem;
            color: #555;
            max-width: 700px;
            margin: 0 auto 2rem;
        }

        .search-container {
            max-width: 600px;
            margin: 0 auto 2rem;
            position: relative;
        }

        .search-container input {
            width: 100%;
            padding: 12px 20px;
            border-radius: 50px;
            border: 1px solid #ddd;
            font-size: 1rem;
            box-shadow: var(--box-shadow);
            padding-left: 50px;
        }

        .search-container i {
            position: absolute;
            left: 20px;
            top: 50%;
            transform: translateY(-50%);
            color: #777;
        }

        .calculator-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }

        .calculator-card {
            background: white;
            border-radius: var(--border-radius);
            padding: 1.5rem;
            box-shadow: var(--box-shadow);
            transition: var(--transition);
            cursor: pointer;
            text-align: center;
        }

        .calculator-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        }

        .calculator-card i {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 1rem;
        }

        .calculator-card h3 {
            margin-bottom: 0.5rem;
            color: var(--secondary-color);
        }

        .calculator-card p {
            color: #666;
            font-size: 0.9rem;
        }

        .calculator-section {
            display: none;
            background: white;
            border-radius: var(--border-radius);
            padding: 2rem;
            margin: 2rem 0;
            box-shadow: var(--box-shadow);
        }

        .calculator-section.active {
            display: block;
        }

        .calculator-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 1.5rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid #eee;
        }

        .calculator-header h2 {
            color: var(--secondary-color);
        }

        .back-btn {
            background: var(--light-color);
            border: none;
            padding: 0.5rem 1rem;
            border-radius: var(--border-radius);
            cursor: pointer;
            display: flex;
            align-items: center;
            transition: var(--transition);
        }

        .back-btn:hover {
            background: #e9ecef;
        }

        .back-btn i {
            margin-right: 5px;
        }

        .calculator-container {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
        }

        @media (min-width: 768px) {
            .calculator-container {
                grid-template-columns: 1fr 1fr;
            }
        }

        .calculator-display {
            background: #f8f9fa;
            border-radius: var(--border-radius);
            padding: 1.5rem;
            margin-bottom: 1.5rem;
            text-align: right;
            font-size: 1.5rem;
            min-height: 80px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .calculator-input {
            font-size: 1.2rem;
            color: #666;
            word-wrap: break-word;
        }

        .calculator-result {
            font-size: 1.8rem;
            font-weight: 600;
            color: var(--primary-color);
            margin-top: 0.5rem;
        }

        .calculator-buttons {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.8rem;
        }

        .calculator-btn {
            padding: 1rem;
            border: none;
            border-radius: var(--border-radius);
            background: #f1f3f5;
            font-size: 1.2rem;
            cursor: pointer;
            transition: var(--transition);
        }

        .calculator-btn:hover {
            background: #e9ecef;
        }

        .calculator-btn.operator {
            background: var(--accent-color);
            color: white;
        }

        .calculator-btn.operator:hover {
            background: var(--secondary-color);
        }

        .calculator-btn.equals {
            background: var(--primary-color);
            color: white;
            grid-column: span 2;
        }

        .calculator-btn.equals:hover {
            background: var(--secondary-color);
        }

        .calculator-btn.clear {
            background: var(--warning-color);
            color: white;
        }

        .calculator-btn.clear:hover {
            background: #d31665;
        }

        .form-group {
            margin-bottom: 1.5rem;
        }

        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 500;
            color: #555;
        }

        .form-group input, .form-group select {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #ddd;
            border-radius: var(--border-radius);
            font-size: 1rem;
        }

        .form-group input:focus, .form-group select:focus {
            outline: none;
            border-color: var(--primary-color);
            box-shadow: 0 0 0 2px rgba(67, 97, 238, 0.2);
        }

        .btn {
            background: var(--primary-color);
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: var(--border-radius);
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition);
            display: inline-block;
        }

        .btn:hover {
            background: var(--secondary-color);
            transform: translateY(-2px);
        }

        .btn-block {
            display: block;
            width: 100%;
        }

        .result-container {
            background: #f8f9fa;
            border-radius: var(--border-radius);
            padding: 1.5rem;
            margin-top: 1.5rem;
        }

        .result-title {
            font-size: 1.2rem;
            margin-bottom: 1rem;
            color: var(--secondary-color);
        }

        .result-value {
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--primary-color);
        }

        .ad-container {
            background: #f1f3f5;
        }

        /* Responsive adjustments */
        @media (max-width: 768px) {
            .header-content {
                flex-direction: column;
                text-align: center;
            }

            nav ul {
                margin-top: 1rem;
                justify-content: center;
            }

            nav ul li {
                margin: 0 0.5rem;
            }

            .hero h1 {
                font-size: 2rem;
            }
        }

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

        .fade-in {
            animation: fadeIn 0.5s ease forwards;
        }

        /* Tooltip */
        .tooltip {
            position: relative;
            display: inline-block;
        }

        .tooltip .tooltiptext {
            visibility: hidden;
            width: 200px;
            background-color: #333;
            color: #fff;
            text-align: center;
            border-radius: 6px;
            padding: 5px;
            position: absolute;
            z-index: 1;
            bottom: 125%;
            left: 50%;
            transform: translateX(-50%);
            opacity: 0;
            transition: opacity 0.3s;
            font-size: 0.8rem;
        }

        .tooltip:hover .tooltiptext {
            visibility: visible;
            opacity: 1;
        }

        /* Tabs */
        .tabs {
            display: flex;
            margin-bottom: 1.5rem;
            border-bottom: 1px solid #ddd;
        }

        .tab {
            padding: 0.8rem 1.5rem;
            cursor: pointer;
            border-bottom: 3px solid transparent;
            transition: var(--transition);
        }

        .tab.active {
            border-bottom: 3px solid var(--primary-color);
            color: var(--primary-color);
            font-weight: 500;
        }

        .tab-content {
            display: none;
        }

        .tab-content.active {
            display: block;
        }

        /* GPA specific styles */
        .course-row {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 1rem;
            margin-bottom: 1rem;
            align-items: center;
        }

        .add-course-btn {
            background: var(--success-color);
            color: white;
            border: none;
            padding: 0.5rem 1rem;
            border-radius: var(--border-radius);
            cursor: pointer;
            margin-top: 1rem;
        }

        .remove-course-btn {
            background: var(--warning-color);
            color: white;
            border: none;
            padding: 0.5rem;
            border-radius: 50%;
            width: 30px;
            height: 30px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        /* Age calculator specific */
        .age-result {
            display: flex;
            justify-content: space-around;
            text-align: center;
            margin-top: 2rem;
        }

        .age-box {
            background: var(--light-color);
            padding: 1rem;
            border-radius: var(--border-radius);
            min-width: 80px;
        }

        .age-value {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary-color);
        }

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

        /* Fraction calculator specific */
        .fraction-input {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 1rem;
        }

        .fraction-input input {
            width: 60px;
            text-align: center;
        }

        .fraction-line {
            border-top: 1px solid #333;
            width: 60px;
            margin: 0 auto;
        }

        /* History */
        .history-item {
            background: #f8f9fa;
            padding: 0.8rem;
            border-radius: var(--border-radius);
            margin-bottom: 0.5rem;
            display: flex;
            justify-content: space-between;
        }

        .history-clear {
            text-align: right;
            margin-top: 1rem;
        }

        /* Dark mode toggle */
        .dark-mode-toggle {
            position: fixed;
            bottom: 20px;
            right: 20px;
            background: var(--primary-color);
            color: white;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
            z-index: 100;
        }

        /* Dark mode styles */
        body.dark-mode {
            background-color: #121212;
            color: #e0e0e0;
        }

        body.dark-mode .calculator-card,
        body.dark-mode .calculator-section,
        body.dark-mode .result-container {
            background-color: #1e1e1e;
            color: #e0e0e0;
        }

        body.dark-mode .calculator-card p,
        body.dark-mode .form-group label,
        body.dark-mode .hero p {
            color: #b0b0b0;
        }

        body.dark-mode .calculator-display,
        body.dark-mode .ad-container {
            background-color: #2d2d2d;
        }

        body.dark-mode .calculator-btn {
            background-color: #333;
            color: #e0e0e0;
        }

        body.dark-mode .calculator-btn:hover {
            background-color: #444;
        }

        body.dark-mode input,
        body.dark-mode select {
            background-color: #333;
            color: #e0e0e0;
            border-color: #444;
        }

        body.dark-mode footer {
            background-color: #1a1a1a;
        }

        body.dark-mode .footer-column ul li a {
            color: #b0b0b0;
        }

        /* Percentage calculator specific */
        .percentage-type {
            margin-bottom: 1.5rem;
        }

        /* Loan calculator specific */
        .loan-summary {
            margin-top: 1.5rem;
        }

        .loan-summary-item {
            display: flex;
            justify-content: space-between;
            margin-bottom: 0.5rem;
        }

        /* Grade calculator specific */
        .grade-scale {
            margin-top: 1.5rem;
        }

        .grade-scale-item {
            display: flex;
            justify-content: space-between;
            margin-bottom: 0.5rem;
        }

        /* Test score calculator specific */
        .test-score-inputs {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
        }

        /* Student loan calculator specific */
        .repayment-plan {
            margin-top: 1.5rem;
        }

        .repayment-plan-item {
            display: flex;
            justify-content: space-between;
            margin-bottom: 0.5rem;
        }
        

/* Content Section Styles */
.content-section {
    background-color:transparent;
    padding: 20px auto;
    border-top: 1px solid #eaeef5;
    border-bottom: 1px solid #eaeef5;
}

.content-header {
    text-align: center;
    margin-bottom: 3rem;
}

.content-header h2 {
    font-size: 2.2rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.content-header .subtitle {
    font-size: 1.1rem;
    color: #666;
    max-width: 700px;
    margin: 0 auto;
}

.content-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.content-card {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow: hidden;
    transition: var(--transition);
}

.content-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.card-header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 1.5rem;
    display: flex;
    align-items: center;
}

.card-header i {
    font-size: 1.5rem;
    margin-right: 1rem;
}

.card-header h3 {
    margin: 0;
    font-size: 1.4rem;
}

.card-body {
    padding: 2rem;
}

/* Stat Grid */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.stat-item {
    background: var(--light-color);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    text-align: center;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    display: block;
    line-height: 1;
}

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

/* Category Grid */
.category-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.category-item {
    background: #f8f9fa;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.category-item:hover {
    background: #e9ecef;
    transform: translateY(-3px);
}

.category-item i {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.category-item h4 {
    margin: 0.5rem 0;
    color: var(--secondary-color);
}

.category-item p {
    font-size: 0.9rem;
    color: #666;
    margin: 0;
}

/* Featured Grid */
.featured-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.featured-item {
    display: flex;
    align-items: flex-start;
    background: #f8f9fa;
    padding: 1.5rem;
    border-radius: var(--border-radius);
}

.featured-icon {
    background: var(--primary-color);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1.5rem;
    flex-shrink: 0;
}

.featured-icon i {
    font-size: 1.5rem;
}

.featured-content h4 {
    margin: 0 0 0.5rem;
    color: var(--secondary-color);
}

.featured-content p {
    margin: 0;
    color: #666;
    font-size: 0.95rem;
}

/* Workflow Steps */
.workflow-steps {
    margin-top: 1.5rem;
}

.step {
    display: flex;
    margin-bottom: 1.5rem;
    position: relative;
    padding-left: 70px;
}

.step:last-child {
    margin-bottom: 0;
}

.step-number {
    position: absolute;
    left: 0;
    top: 0;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
}

.step-content h4 {
    margin: 0 0 0.5rem;
    color: var(--secondary-color);
}

.step-content p {
    margin: 0;
    color: #666;
}

/* Education Grid */
.education-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.education-item {
    background: #f8f9fa;
    padding: 1.5rem;
    border-radius: var(--border-radius);
}

.education-icon {
    background: var(--accent-color);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}

.education-icon i {
    font-size: 1.5rem;
}

.education-item h4 {
    margin: 0 0 0.5rem;
    color: var(--secondary-color);
}

.education-item p {
    margin: 0;
    color: #666;
    font-size: 0.95rem;
}

/* Quote Box */
.quote-box {
    background: var(--light-color);
    border-left: 4px solid var(--primary-color);
    padding: 1.5rem;
    margin-top: 2rem;
    position: relative;
}

.quote-box i {
    position: absolute;
    top: 1rem;
    left: 1rem;
    font-size: 1.5rem;
    color: rgba(67, 97, 238, 0.2);
}

.quote-box p {
    font-style: italic;
    padding-left: 2rem;
    margin-bottom: 0.5rem;
    color: #555;
}

.quote-author {
    padding-left: 2rem;
    font-size: 0.9rem;
    color: #777;
    font-weight: 500;
}

/* FAQ Styles */
.faq-grid {
    margin-top: 1.5rem;
}

.faq-item {
    margin-bottom: 1rem;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.faq-question {
    width: 100%;
    background: #f8f9fa;
    border: none;
    padding: 1.2rem 1.5rem;
    text-align: left;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: var(--transition);
}

.faq-question:hover {
    background: #e9ecef;
}

.faq-question span {
    font-weight: 500;
    color: var(--secondary-color);
}

.faq-question i {
    transition: transform 0.3s ease;
}

.faq-question.active i {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 1.5rem;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    background: white;
}

.faq-answer.active {
    padding: 1.5rem;
    max-height: 500px;
}

.faq-answer p {
    margin: 0;
    color: #666;
}

/* CTA Styles */
.cta-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin: 2rem 0;
}

.cta-item {
    background: #f8f9fa;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    text-align: center;
}

.cta-item i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.cta-item h4 {
    margin: 0 0 0.5rem;
    color: var(--secondary-color);
}

.cta-item p {
    margin: 0 0 1rem;
    color: #666;
    font-size: 0.95rem;
}

.newsletter-box {
    background: linear-gradient(135deg, rgba(67, 97, 238, 0.1), rgba(63, 55, 201, 0.1));
    padding: 1.5rem;
    border-radius: var(--border-radius);
    text-align: center;
}

.newsletter-box h4 {
    margin: 0 0 0.5rem;
    color: var(--secondary-color);
}

.newsletter-box p {
    margin: 0 0 1rem;
    color: #666;
}

.newsletter-form {
    display: flex;
    max-width: 500px;
    margin: 0 auto;
}

.newsletter-form input {
    flex: 1;
    padding: 0.8rem 1rem;
    border: 1px solid #ddd;
    border-radius: var(--border-radius) 0 0 var(--border-radius);
    font-size: 1rem;
}

.newsletter-form button {
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

/* Dark Mode Styles */
body.dark-mode .content-section {
    background-color: #1a1a1a;
    border-color: #333;
}

body.dark-mode .content-card,
body.dark-mode .category-item,
body.dark-mode .featured-item,
body.dark-mode .education-item,
body.dark-mode .cta-item,
body.dark-mode .faq-item,
body.dark-mode .stat-item,
body.dark-mode .step-content {
    background-color: #1e1e1e;
}

body.dark-mode .card-body p,
body.dark-mode .featured-content p,
body.dark-mode .education-item p,
body.dark-mode .faq-answer p,
body.dark-mode .quote-box p,
body.dark-mode .newsletter-box p,
body.dark-mode .stat-label {
    color: #b0b0b0;
}

body.dark-mode .quote-box,
body.dark-mode .newsletter-box {
    background: rgba(67, 97, 238, 0.2);
}

body.dark-mode .faq-question {
    background-color: #2d2d2d;
}

body.dark-mode .faq-question span {
    color: #e0e0e0;
}

/* Responsive Adjustments */
@media (max-width: 992px) {
    .category-grid,
    .education-grid,
    .cta-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .content-header h2 {
        font-size: 1.8rem;
    }
    
    .content-header .subtitle {
        font-size: 1rem;
    }
    
    .stat-grid {
        grid-template-columns: 1fr;
    }
    
    .newsletter-form {
        flex-direction: column;
    }
    
    .newsletter-form input,
    .newsletter-form button {
        border-radius: var(--border-radius);
    }
    
    .newsletter-form button {
        margin-top: 0.5rem;
    }
}

/* Animation for FAQ */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.faq-answer.active {
    animation: fadeIn 0.3s ease forwards;
}