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

        body {
            background: linear-gradient(135deg, #e8f4f8 0%, #d4e9f2 50%, #c0dde8 100%);
            background-attachment: fixed;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 10px;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }

        .container {
            width: 100%;
            max-width: 500px;
            background: white;
            padding: 20px;
            border-radius: 30px;
            box-shadow: 0 25px 60px rgba(29, 150, 207, 0.25),
                        0 0 0 10px rgba(29, 150, 207, 0.1),
                        0 0 0 20px rgba(29, 150, 207, 0.05);
            border: 3px solid #1d96cf;
            position: relative;
            overflow: hidden;
        }

        .container::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(29, 150, 207, 0.03) 0%, transparent 70%);
            animation: rotate 20s linear infinite;
        }

        @keyframes rotate {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        .container > * {
            position: relative;
            z-index: 1;
        }

        h1 {
            text-align: center;
            font-size: 1.5rem;
            background: linear-gradient(135deg, #1d96cf, #198fb4);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 15px;
            font-weight: 700;
            text-shadow: 0 2px 10px rgba(29, 150, 207, 0.1);
        }

        label {
            font-weight: 600;
            font-size: 13px;
            color: #0b3b49;
            display: block;
            margin-bottom: 5px;
        }

        #number {
            width: 100%;
            font-size: 24px;
            color: rgb(199, 106, 39);
            padding: 8px;
            text-align: center;
            border: 3px solid #1d96cf;
            border-radius: 12px;
            background: linear-gradient(135deg, #f8fcfd 0%, #ffffff 100%);
            font-weight: 600;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(29, 150, 207, 0.1);
        }

        #number:focus {
            outline: none;
            border-color: #198fb4;
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(29, 150, 207, 0.2);
        }

        select {
            font-weight: 600;
            font-size: 14px;
            text-align: center;
            color: white;
            background: linear-gradient(135deg, #1d96cf, #198fb4);
            border: none;
            border-radius: 10px;
            padding: 8px 12px;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(29, 150, 207, 0.25);
            width: 100%;
        }

        select option {
            background: white;
            color: #0b3b49;
            font-weight: 600;
            padding: 10px;
        }

        select:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(29, 150, 207, 0.35);
        }

        .select-impresion.select-byn {
            background: linear-gradient(135deg, #2c2c2c, #1a1a1a) !important;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
            pointer-events: none;
            appearance: none;
            -webkit-appearance: none;
            -moz-appearance: none;
        }

        .select-impresion.select-byn:hover {
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
        }

        .select-color {
            background: linear-gradient(135deg, #1d96cf, #198fb4);
            pointer-events: none;
            appearance: none;
            -webkit-appearance: none;
            -moz-appearance: none;
        }

        input[type="text"] {
            padding: 6px;
            font-size: 14px;
            font-weight: 600;
            border: 2px solid #1ca2ca;
            text-align: center;
            border-radius: 8px;
            background: white;
            color: #0b3b49;
            transition: all 0.3s ease;
            width: 100%;
        }

        input[type="text"]:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(28, 162, 202, 0.2);
        }

        #reset {
            padding: 12px 24px;
            font-size: 16px;
            font-weight: 700;
            cursor: pointer;
            background: linear-gradient(135deg, #e0e0e0, #cbcbcb);
            color: #198fb4;
            border: 3px solid #2c2c2c;
            border-radius: 15px;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
            display: block;
            margin: 15px auto 0;
        }

        #reset:hover {
            background: linear-gradient(135deg, #1d96cf, #198fb4);
            color: white;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(29, 150, 207, 0.4);
        }

        .grid-container {
            display: grid;
            grid-template-columns: 85px 85px 20px 95px 85px;
            gap: 6px;
            margin: 12px 0;
            align-items: end;
        }

        .grid-cell {
            display: flex;
            align-items: flex-end;
        }

        .total-container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
            margin: 15px 0;
        }

        .total-box {
            padding: 12px;
            border-radius: 12px;
            text-align: center;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }

        .total-box:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
        }

        .total-box.byn {
            background: linear-gradient(135deg, #2c2c2c, #1a1a1a);
        }

        .total-box.color {
            background: linear-gradient(135deg, #1d96cf, #198fb4);
        }

        .total-box label {
            color: white;
            font-size: 13px;
            font-weight: 600;
            display: block;
            margin-bottom: 6px;
        }

        .total-box input[type="text"] {
            background: white;
            border: 2px solid rgba(255, 255, 255, 0.3);
            font-size: 16px;
            font-weight: 700;
            color: #0b3b49;
        }

        #mensaje {
            font-weight: 700;
            font-size: 14px;
            color: rgb(193, 15, 15);
            text-align: center;
            padding: 10px;
            background: linear-gradient(135deg, #ffe6e6, #ffd4d4);
            border-radius: 10px;
            margin: 12px 0;
            border: 2px solid rgba(193, 15, 15, 0.3);
            box-shadow: 0 4px 15px rgba(193, 15, 15, 0.15);
            display: none;
        }

        #mensaje:not(:empty) {
            display: block;
            animation: slideDown 0.4s ease-out;
        }

        @keyframes slideDown {
            from {
                opacity: 0;
                transform: translateY(-10px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .formato-container {
            margin: 15px 0;
        }

        .formato-label {
            font-size: 15px;
            font-weight: 600;
            color: #0b3b49;
            margin-bottom: 8px;
            display: block;
        }

        .grid-container-formato {
            display: grid;
            grid-template-columns: 125px 10px 135px 100px;
            gap: 6px;
            align-items: end;
        }

        #formato.a5-selected {
            background: linear-gradient(135deg, #dc2626, #991b1b) !important;
            box-shadow: 0 4px 15px rgba(220, 38, 38, 0.4);
        }

        #formato.apaisado-selected {
            background: linear-gradient(135deg, #059669, #047857) !important;
            box-shadow: 0 4px 15px rgba(5, 150, 105, 0.4);
        }

        .selected-purple {
            background: linear-gradient(135deg, #8e2de2, #4a00e0) !important;
            box-shadow: 0 4px 15px rgba(142, 45, 226, 0.4);
        }

        .reference-section {
            margin-top: 20px;
            padding: 15px;
            background: linear-gradient(135deg, #f8fcfd, #e8f4f8);
            border-radius: 15px;
            border: 2px solid rgba(29, 150, 207, 0.2);
        }

        .reference-section > label {
            text-align: center;
            display: block;
            font-size: 14px;
            font-weight: 700;
            color: #0b3b49;
            margin-bottom: 12px;
        }

        #hoja {
            text-align: center;
            display: block;
            font-size: 12px;
            font-style: italic;
            color: #666;
            margin: 10px 0;
            padding: 6px;
            background: white;
            border-radius: 8px;
            border: 1px solid rgba(29, 150, 207, 0.2);
        }

        .tables-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
            margin-top: 12px;
        }

        table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            background: white;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 4px 15px rgba(29, 150, 207, 0.1);
        }

        th {
            background: linear-gradient(135deg, #1d96cf, #198fb4);
            color: white;
            padding: 8px 6px;
            font-size: 11px;
            font-weight: 600;
        }

        td {
            padding: 6px;
            border-bottom: 1px solid rgba(29, 150, 207, 0.1);
            font-size: 10px;
            text-align: center;
            color: #333;
        }

        tbody tr:last-child td {
            border-bottom: none;
        }

        tbody tr:nth-child(even) {
            background: linear-gradient(135deg, #f8fcfd, #ffffff);
        }

        tbody tr {
            transition: all 0.2s ease;
        }

        tbody tr:hover {
            background: linear-gradient(135deg, #e8f4f8, #f0f8fb);
            transform: scale(1.02);
        }

        .spacer {
            height: 1px;
        }

        @media (max-width: 600px) {
            .container {
                width: 100%;
                padding: 15px;
                border-radius: 20px;
            }

            h1 {
                font-size: 1.3rem;
                margin-bottom: 12px;
            }

            .grid-container {
                grid-template-columns: 75px 75px 15px 85px 75px;
                gap: 5px;
            }

            .grid-container-formato {
                grid-template-columns: 1fr;
                gap: 8px;
            }

            .tables-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }

            #number {
                font-size: 20px;
                padding: 6px;
            }

            select {
                font-size: 12px;
                padding: 6px 10px;
            }

            input[type="text"] {
                font-size: 12px;
                padding: 5px;
            }

            .total-box label {
                font-size: 12px;
            }

            .total-box input[type="text"] {
                font-size: 14px;
            }

            #reset {
                font-size: 14px;
                padding: 10px 20px;
            }

            th {
                font-size: 10px;
                padding: 6px 4px;
            }

            td {
                font-size: 9px;
                padding: 5px;
            }
        }