/* ==================== RESET & BASE STYLES ==================== */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        /* ==================== CONTAINER ==================== */
        .container {
            background: white;
            border-radius: 20px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            max-width: 1100px;
            width: 100%;
            overflow: hidden;
            margin: 4rem auto;
        }

        /* ==================== HEADER ==================== */
        .header {
            color: white;
            padding: 30px;
            text-align: center;
        }

        .header h1 {
            font-size: 2rem;
            margin-bottom: 5px;
        }

        .header p {
            font-size: 0.95rem;
            opacity: 0.9;
        }

        /* ==================== MAIN CONTENT ==================== */
        .content {
            padding: 30px;
        }

        /* ==================== FORM SECTIONS ==================== */
        .section {
            margin-bottom: 30px;
        }

        .section-title {
            font-size: 1.3rem;
            color: #2a5298;
            margin-bottom: 15px;
            display: flex;
            align-items: center;
        }

        .section-title::before {
            content: '';
            width: 4px;
            height: 24px;
            background: #2a5298;
            margin-right: 10px;
            border-radius: 2px;
        }

        /* ==================== FORM GRID ==================== */
        .form-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
        }

        /* ==================== INPUT GROUPS ==================== */
        .input-group {
            display: flex;
            flex-direction: column;
        }

        .input-group label {
            font-size: 0.9rem;
            color: #555;
            margin-bottom: 8px;
            font-weight: 500;
        }

        .input-wrapper {
            position: relative;
            display: flex;
            align-items: center;
        }

        .currency-symbol {
            position: absolute;
            left: 15px;
            color: #2a5298;
            font-weight: 600;
            font-size: 1rem;
        }

        .input-group input {
            width: 100%;
            padding: 12px 15px 12px 35px;
            border: 2px solid #e0e0e0;
            border-radius: 10px;
            font-size: 1rem;
            transition: all 0.3s ease;
            outline: none;
        }

        .input-group input:focus {
            border-color: #2a5298;
            box-shadow: 0 0 0 3px rgba(42, 82, 152, 0.1);
        }

        .input-group input:disabled {
            background-color: #f5f5f5;
            cursor: not-allowed;
            color: #999;
        }

        /* ==================== RESULT SECTION ==================== */
        .result-section {
            background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
            padding: 25px;
            border-radius: 15px;
            margin-top: 30px;
        }

        .result-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
        }

        .result-card {
            background: white;
            padding: 20px;
            border-radius: 12px;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
            text-align: center;
            transition: transform 0.3s ease;
        }

        .result-card:hover {
            transform: translateY(-5px);
        }

        .result-label {
            font-size: 0.9rem;
            color: #666;
            margin-bottom: 10px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .result-value {
            font-size: 1.8rem;
            font-weight: 700;
            color: #333;
        }

        .result-card.gross .result-value {
            color: #00897b;
        }

        .result-card.deductions .result-value {
            color: #d32f2f;
        }

        .result-card.net .result-value {
            color: #1e3c72;
        }

        /* ==================== BUTTONS ==================== */
        .button-group {
            display: flex;
            gap: 15px;
            margin-top: 25px;
            flex-wrap: wrap;
        }

        .btn {
            flex: 1;
            min-width: 150px;
            padding: 14px 30px;
            border: none;
            border-radius: 10px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .btn-calculate {
            background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
            color: white;
        }

        .btn-calculate:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 20px rgba(42, 82, 152, 0.4);
        }

        .btn-reset {
            background: #f5f5f5;
            color: #555;
        }

        .btn-reset:hover {
            background: #e0e0e0;
            transform: translateY(-2px);
        }

        /* ==================== INFO NOTE ==================== */
        .info-note {
            background: #fff3cd;
            border-left: 4px solid #ffc107;
            padding: 15px;
            border-radius: 8px;
            margin-top: 20px;
            font-size: 0.9rem;
            color: #856404;
        }

        .info-note strong {
            display: block;
            margin-bottom: 5px;
        }

        /* ==================== RESPONSIVE DESIGN ==================== */
        @media (max-width: 768px) {
            .header h1 {
                font-size: 1.5rem;
            }

            .content {
                padding: 20px;
            }

            .form-grid {
                grid-template-columns: 1fr;
            }

            .result-grid {
                grid-template-columns: 1fr;
            }

            .result-value {
                font-size: 1.5rem;
            }

            .button-group {
                flex-direction: column;
            }

            .btn {
                min-width: 100%;
            }
        }

        @media (max-width: 480px) {
            body {
                padding: 0;
            }

            .header {
                padding: 20px;
            }

            .header h1 {
                font-size: 1.3rem;
            }

            .content {
                padding: 15px;
            }

            .section-title {
                font-size: 1.1rem;
            }
        }