:root {
            --primary-color: #4a6fa5;
            --secondary-color: #166088;
            --accent-color: #4fc3f7;
            --light-color: #f8f9fa;
            --dark-color: #343a40;
            --success-color: #4caf50;
            --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            --radius: 8px;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        body {
            background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            color: var(--dark-color);
            line-height: 1.6;
            min-height: 100vh;
        }
        
        /* Navbar Styles */
        .navbar {
            background-color: var(--primary-color);
            color: white;
            padding: 1rem 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 100;
            animation: slideDown 0.5s ease-out;
        }
        
        .navbar h1 {
            font-size: 1.5rem;
            font-weight: 600;
        }
        
        .navbar .nav-links {
            display: flex;
            gap: 1.5rem;
        }
        
        .navbar .nav-links a {
            color: white;
            text-decoration: none;
            font-weight: 500;
            transition: all 0.3s ease;
            padding: 0.5rem 1rem;
            border-radius: var(--radius);
        }
        
        .navbar .nav-links a:hover {
            background-color: rgba(255, 255, 255, 0.2);
        }
        
        .currency-selector {
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius);
            padding: 0.3rem 0.5rem;
            color: white;
            cursor: pointer;
        }
        
        /* Main Container */
        .container {
            max-width: 1200px;
            margin: 2rem auto;
            padding: 0 1rem;
        }
        
        /* Calculator Section */
        .calculator-section {
            background-color: white;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 2rem;
            margin-bottom: 2rem;
            animation: fadeInUp 0.8s ease-out;
        }
        
        .calculator-title {
            text-align: center;
            margin-bottom: 2rem;
            color: var(--secondary-color);
            font-size: 2rem;
        }
        
        .calculator-form {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
        }
        
        @media (max-width: 768px) {
            .calculator-form {
                grid-template-columns: 1fr;
            }
        }
        
        .form-group {
            margin-bottom: 1.5rem;
        }
        
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 500;
            color: var(--dark-color);
        }
        
        .form-group input {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #ddd;
            border-radius: var(--radius);
            font-size: 1rem;
            transition: border 0.3s ease;
        }
        
        .form-group input:focus {
            outline: none;
            border-color: var(--accent-color);
            box-shadow: 0 0 0 2px rgba(79, 195, 247, 0.2);
        }
        
        .result-container {
            background-color: var(--light-color);
            border-radius: var(--radius);
            padding: 1.5rem;
            margin-top: 1.5rem;
            text-align: center;
            animation: fadeIn 1s ease-out;
        }
        
        .result-title {
            font-size: 1.3rem;
            margin-bottom: 1rem;
            color: var(--secondary-color);
        }
        
        .result-value {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary-color);
            margin: 1rem 0;
        }
        
        .breakdown {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1rem;
            margin-top: 1.5rem;
        }
        
        @media (max-width: 768px) {
            .breakdown {
                grid-template-columns: 1fr;
            }
        }
        
        .breakdown-item {
            background-color: white;
            padding: 1rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        
        .breakdown-label {
            font-size: 0.9rem;
            color: #6c757d;
            margin-bottom: 0.5rem;
        }
        
        .breakdown-value {
            font-size: 1.3rem;
            font-weight: 600;
            color: var(--secondary-color);
        }
        
        .calculate-btn {
            background-color: var(--success-color);
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: var(--radius);
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            margin-top: 1rem;
            width: 100%;
        }
        
        .calculate-btn:hover {
            background-color: #3d8b40;
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
        }
        
        /* Chart Section */
        .chart-container {
            margin-top: 2rem;
            height: 400px;
            background-color: white;
            border-radius: var(--radius);
            padding: 1.5rem;
            box-shadow: var(--shadow);
            animation: fadeInUp 1s ease-out;
        }
        
        /* About Section */
        .about-section {
            background-color: white;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 2rem;
            animation: fadeInUp 1.2s ease-out;
            line-height: 1.8;
        }
        
        .about-title {
            text-align: center;
            margin-bottom: 2rem;
            color: var(--secondary-color);
            font-size: 2rem;
        }
        
        .about-content {
            margin-bottom: 2rem;
        }
        
        .about-content h3 {
            color: var(--primary-color);
            margin: 1.5rem 0 1rem;
        }
        
        .about-content p {
            margin-bottom: 1rem;
            text-align: justify;
        }
        
        .about-content ul {
            margin: 1rem 0;
            padding-left: 1.5rem;
        }
        
        .about-content li {
            margin-bottom: 0.5rem;
        }
        
        .ad-container {
            margin: 2rem 0;
            padding: 1.5rem;
            background-color: #f8f9fa;
            border-radius: var(--radius);
            text-align: center;
            border: 1px dashed #ddd;
        }
        
        .ad-placeholder {
            color: #6c757d;
            font-style: italic;
        }
        
        /* Animations */
        @keyframes fadeIn {
            from { opacity: 0; }
            to { opacity: 1; }
        }
        
        @keyframes fadeInUp {
            from { 
                opacity: 0;
                transform: translateY(20px);
            }
            to { 
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        @keyframes slideDown {
            from {
                transform: translateY(-100%);
            }
            to {
                transform: translateY(0);
            }
        }
        
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.05); }
            100% { transform: scale(1); }
        }
        
        .pulse {
            animation: pulse 2s infinite;
        }
        
        /* Footer */
        footer {
            text-align: center;
            padding: 2rem;
            background-color: var(--dark-color);
            color: white;
            margin-top: 3rem;
        }
        
        /* Responsive adjustments */
        @media (max-width: 576px) {
            .calculator-title, .about-title {
                font-size: 1.5rem;
            }
            
            .result-value {
                font-size: 2rem;
            }
            
            .container {
                padding: 0 0.5rem;
            }
            
            .navbar {
                padding: 1rem;
            }
            
            .navbar h1 {
                font-size: 1.3rem;
            }
        }


a {
    text-decoration: none;
    color: rgba(0, 213, 255, 0.605);
}    


/* Mobile enhancements (add at the end of your CSS) */
@media (max-width: 576px) {
    /* Navbar */
    .navbar {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    .navbar .nav-links {
        flex-direction: column;
        width: 100%;
        gap: 0.5rem;
    }
    .currency-selector {
        width: 100%;
        margin-top: 0.5rem;
    }

    /* Calculator */
    .calculator-form {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    .form-group input {
        font-size: 0.95rem;
        padding: 0.7rem;
    }
    .calculate-btn {
        width: 100%;
        font-size: 1rem;
        padding: 0.75rem;
    }
    .result-value {
        font-size: 2rem;
    }
    .breakdown {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    /* About Section */
    .about-title {
        font-size: 1.5rem;
    }
    .about-content h3 {
        font-size: 1.1rem;
    }
    .about-content p, .about-content li {
        font-size: 0.95rem;
    }

    /* Chart */
    .chart-container {
        height: 300px;
        padding: 1rem;
    }

    /* Footer */
    footer {
        font-size: 0.9rem;
        padding: 1.5rem;
    }
}