:root {
            --saffron: #FF9933;
            --white: #FFFFFF;
            --green: #138808;
            --navy: #000080;
            --teal: #008080;
            --gold: #FFD700;
            --bihar-purple: #8e24aa;
            --bihar-light: #f3e5f5;
        }
        
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background-color: #f8f9fa;
            color: #333;
            line-height: 1.6;
        }
        
        .navbar {
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            background: white !important;
        }
        
        .district-hero {
            background: linear-gradient(135deg, #e3f2fd, #bbdefb);
            border-radius: 16px;
            padding: 3rem;
            margin-bottom: 2rem;
            position: relative;
            overflow: hidden;
        }
        
        .district-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 8px;
            background: linear-gradient(90deg, var(--saffron), var(--white), var(--green));
            z-index: 1;
        }
        
        .section-card {
            background: white;
            border-radius: 16px;
            padding: 2rem;
            box-shadow: 0 6px 15px rgba(0,0,0,0.1);
            margin-bottom: 2rem;
            border: 1px solid rgba(0,0,0,0.05);
            transition: transform 0.3s ease;
        }
        
        .section-card:hover {
            transform: translateY(-5px);
        }
        
        .section-header {
            position: relative;
            padding-bottom: 15px;
            margin-bottom: 25px;
        }
        
        .section-header::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 60px;
            height: 4px;
            background: var(--bihar-purple);
            border-radius: 2px;
        }
        
        .converter-box {
            background-color: var(--bihar-light);
            border-radius: 12px;
            padding: 20px;
            margin-bottom: 20px;
            box-shadow: 0 4px 8px rgba(0,0,0,0.05);
        }
        
        .form-label {
            font-weight: 600;
            color: #555;
        }
        
        .form-control, .form-select {
            border-radius: 8px;
            padding: 10px 15px;
            border: 1px solid #ddd;
            transition: all 0.3s;
        }
        
        .form-control:focus, .form-select:focus {
            border-color: var(--bihar-purple);
            box-shadow: 0 0 0 3px rgba(142, 36, 170, 0.2);
        }
        
        .btn-primary {
            background-color: var(--bihar-purple);
            border-color: var(--bihar-purple);
            border-radius: 8px;
            padding: 10px 20px;
            font-weight: 600;
            transition: all 0.3s;
        }
        
        .btn-primary:hover {
            background-color: #7b1fa2;
            border-color: #7b1fa2;
            transform: translateY(-2px);
        }
        
        .result-box {
            background-color: white;
            border-radius: 12px;
            padding: 20px;
            margin-top: 20px;
            box-shadow: 0 4px 8px rgba(0,0,0,0.05);
            border-left: 4px solid var(--bihar-purple);
        }
        
        .unit-badge {
            display: inline-block;
            padding: 5px 12px;
            margin-right: 8px;
            margin-bottom: 8px;
            font-size: 14px;
            font-weight: 600;
            border-radius: 8px;
            background-color: rgba(142, 36, 170, 0.1);
            color: var(--bihar-purple);
            border: 1px solid rgba(142, 36, 170, 0.2);
        }
        
        .shape-option {
            text-align: center;
            padding: 15px;
            border-radius: 12px;
            background-color: white;
            border: 2px solid #eee;
            transition: all 0.3s;
            cursor: pointer;
            margin-bottom: 15px;
        }
        
        .shape-option:hover, .shape-option.active {
            border-color: var(--bihar-purple);
            background-color: var(--bihar-light);
            transform: translateY(-3px);
        }
        
        .shape-option i {
            font-size: 2.5rem;
            color: var(--bihar-purple);
            margin-bottom: 10px;
        }
        
        .shape-form {
            display: none;
        }
        
        .shape-form.active {
            display: block;
            animation: fadeIn 0.5s ease;
        }
        
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(10px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        .feature-box {
            background: white;
            border-radius: 12px;
            padding: 20px;
            box-shadow: 0 4px 8px rgba(0,0,0,0.05);
            transition: all 0.3s;
            height: 100%;
            border-top: 4px solid var(--bihar-purple);
        }
        
        .feature-box:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 15px rgba(0,0,0,0.1);
        }
        
        .feature-box i {
            font-size: 2.5rem;
            color: var(--bihar-purple);
            margin-bottom: 15px;
        }
        .breadcrumb {
            background-color: transparent;
            padding: 0.75rem 0;
            margin-bottom: 1rem;
        }
        
        .breadcrumb-item a {
            color: var(--bihar-purple);
            text-decoration: none;
        }
        
        .breadcrumb-item.active {
            color: #6c757d;
        }
        
        .local-guide {
            background-color: #e8f4f8;
            border-left: 4px solid var(--teal);
            padding: 1.5rem;
            border-radius: 8px;
            margin: 2rem 0;
        }
        
        @media (max-width: 768px) {
            .district-hero {
                padding: 2rem 1rem;
            }
            
            .section-card {
                padding: 1.5rem;
            }
            
            h1 {
                font-size: 1.8rem;
            }
            
            h2 {
                font-size: 1.5rem;
            }
        }