/* ESTILOS BASE */
        :root {
            --primary-color: #dc2626;
            --primary-dark: #991b1b;
            --secondary-color: #6b7280;
            --secondary-dark: #4b5563;
            --text-color: #111827;
            --light-bg: #f8f9fa;
            --card-bg: #ffffff;
            --success-color: #059669;
            --success-dark: #047857;
            --dark-color: #000000;
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 1.5rem;
            --spacing-lg: 2rem;
            --spacing-xl: 3rem;
            --border-radius: 12px;
            --border-radius-lg: 20px;
            --box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }

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

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background-color: var(--light-bg);
            color: var(--text-color);
            line-height: 1.6;
            padding: 0;
            margin: 0;
            min-height: 100vh;
            position: relative;
            padding-bottom: 60px; /* Espacio para el footer fijo */
        }

        .container {
            width: 100%;
            max-width: 1400px;
            margin: 0 auto;
            padding: var(--spacing-md);
        }

        .main-container {
            background: linear-gradient(145deg, #f8f9fa 0%, #e9ecef 100%);
            border-radius: var(--border-radius-lg);
            padding: var(--spacing-lg);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.1);
            margin: var(--spacing-md) auto;
        }

        /* NAV */
        .custom-header {
            background-color: var(--dark-color) !important;
            border-bottom: 4px solid #b0201f;
            padding: 5px 0; 
            width: 100%;
        }
        
        .header-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            min-height: 40px;
            padding: var(--spacing-xs) var(--spacing-md);
            max-width: 1400px;
            margin: 0 auto;
        }
        
        .logo-container {
             flex: 0 0 auto;
  display: flex;
  align-items: center;
        }
        
        .logo-img {
            max-width: 120px;
            height: auto;
            padding: var(--spacing-xs);
        }
        
        .title-container {
            flex: 1 0 auto;
            text-align: center;
            padding: var(--spacing-xs);
        }
        
        .header-title {
            font-family: sans-serif; 
            color: #ffffff;
            font-weight: 600;
            margin: 0;
            line-height: 1.2;
            font-size: clamp(1.1rem, 4vw, 1.8rem);
        }
        
        .date-container {
            flex: 0 0 auto;
            display: flex;
            align-items: center;
            justify-content: flex-end;
        }
        
        .header-date {
            font-family: sans-serif; 
            color: #ffffff;
            font-weight: 700;
            padding: var(--spacing-xs);
            white-space: nowrap;
            font-size: clamp(0.75rem, 2.5vw, 1rem);
        }
        
        /* DROP AREA */
        #dropAreaEstilos {
            border: 0.1875rem dashed #2c2a2a7a;
            border-radius: 1.5rem;
            min-height: 21.875rem;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            color: #000;
            margin: var(--spacing-xl) auto var(--spacing-lg);
            font-size: clamp(1rem, 4vw, 1.375rem);
            background: linear-gradient(135deg, #f6f6f6 0%, #fcfeff 100%);
            cursor: pointer;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
            font-weight: 600;
            width: 90%;
            max-width: 800px;
            padding: var(--spacing-md);
        }

        #dropAreaEstilos::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: linear-gradient(45deg, transparent, rgba(149, 146, 146, 0.173), transparent);
            transform: rotate(45deg);
            transition: all 0.6s ease;
            opacity: 0;
        }

        #dropAreaEstilos:hover::before {
            animation: shine 1.5s ease-in-out infinite;
            opacity: 1;
        }

        @keyframes shine {
            0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
            100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
        }

        #dropAreaEstilos:hover {
            border-color: #434141;
            background: linear-gradient(135deg, #EBEBEB 0%, #F5F5F5 100%);
            transform: scale(1.02);
            color: #464444;
        }

        #dropAreaEstilos.dragover {
            border-color: #9f0f0f99;
            background: linear-gradient(135deg, #e3f2fd 0%, #e4e7e9 100%);
            transform: scale(1.05);
            color: #9f0f0f99;
        }

        .upload-icon {
            font-size: clamp(2.5rem, 10vw, 3.5rem);
            margin-bottom: var(--spacing-sm);
            display: block;
            transition: var(--transition);
            color: #9f0f0f99;
            filter: drop-shadow(0 0.25rem 0.5rem rgba(247, 62, 0, 0.2));
        }

        #dropAreaEstilos:hover .upload-icon {
            transform: scale(1.15) rotate(5deg);
            color: #b50000;
        }

        .upload-hint {
            color: #8b6464;
            font-size: clamp(0.75rem, 3vw, 0.85rem);
            font-weight: 400;
            margin-top: 0.5rem;
            opacity: 0.8;
            text-align: center;
            padding: 0 var(--spacing-sm);
        }

        .select-button {
            background: linear-gradient(135deg, #fc4545fd 0%, rgb(183, 13, 10) 100%);
            color: white;
            border: none;
            padding: 0.75rem 1.5rem;
            border-radius: 3.125rem;
            font-size: clamp(0.875rem, 3vw, 1rem);
            font-weight: 600;
            cursor: pointer;
            margin-top: var(--spacing-sm);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
            width: auto;
            min-width: 140px;
        }

        .select-button:hover {
            transform: translateY(-2px);
        }

        .file-input {
            display: none;
        }

        .file-info {
            margin-top: var(--spacing-md);
            padding: 1.2rem;
            background: linear-gradient(135deg, rgba(247, 0, 0, 0.1) 0%, rgba(181, 0, 0, 0.1) 100%);
            border-radius: 1rem;
            border-left: 0.25rem solid #9f0f0f99;
            display: none;
            color: #553333;
            font-weight: 500;
            width: 100%;
            box-sizing: border-box;
            font-size: clamp(0.875rem, 3vw, 1rem);
        }

        .file-info.show {
            display: block;
            animation: fadeIn 0.3s ease;
        }

        .processing {
            display: none;
            margin-top: var(--spacing-sm);
            color: #9f0f0f99;
            font-weight: 500;
            text-align: center;
            width: 100%;
        }

        .processing.show {
            display: block;
        }

        .spinner {
            border: 0.1875rem solid #f1f5f9;
            border-top: 0.1875rem solid #9f0f0f99;
            border-radius: 50%;
            width: 2.1875rem;
            height: 2.1875rem;
            animation: spin 1s linear infinite;
            margin: 0 auto var(--spacing-sm);
        }

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

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

        /* HEADER CON FECHA */
        .header {
            text-align: center;
            margin-bottom: var(--spacing-xl);
            padding: var(--spacing-md);
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
            border-radius: var(--border-radius);
            color: white;
            box-shadow: 0 10px 30px rgba(220, 38, 38, 0.3);
            position: relative;
            overflow: hidden;
            width: 100%;
        }

        .header::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
            transform: rotate(45deg);
            animation: shimmer 3s infinite;
        }

        .header h1 {
            font-weight: 400;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
            position: relative;
            z-index: 1;
            font-size: clamp(1.5rem, 5vw, 2.2rem);
            line-height: 1.3;
            padding: 0 var(--spacing-sm);
            margin: 0 auto;
        }

        /* RESUMEN GENERAL */
        .summary-section {
            margin-bottom: var(--spacing-xl);
        }

        .summary-cards {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr));
            gap: var(--spacing-sm);
            margin-bottom: var(--spacing-xs);
        }

        .summary-card {
            background: linear-gradient(145deg, var(--card-bg) 0%, #f1f5f9 100%);
            border-radius: var(--border-radius);
            padding: var(--spacing-sm);
            box-shadow: var(--box-shadow);
            border-left: 5px solid var(--primary-color);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .summary-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--primary-color), var(--primary-dark), #7f1d1d);
        }

        .summary-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
        }

        .summary-card h3 {
            color: #010101;
            font-size: clamp(1.1rem, 2.5vw, 1.5rem);
            margin-bottom: 0.8rem;
            font-weight: 300;
        }

        .summary-card .value {
            font-size: clamp(1.5rem, 4vw, 2rem);
            font-weight: 400;
            color: var(--text-color);
            text-align: right;
        }

        /* SECCIÓN POR COMBUSTIBLE */
        .fuel-section {
            margin-top: var(--spacing-xl);
        }

        .fuel-section h3 {
            text-align: center;
            font-size: clamp(1.2rem, 3vw, 1.5rem);
            font-weight: 700;
            color: #374151;
            margin-bottom: var(--spacing-md);
            padding: var(--spacing-sm);
            background: linear-gradient(135deg, var(--secondary-color) 0%, var(--secondary-dark) 100%);
            color: white;
            border-radius: var(--border-radius);
            text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.3);
        }

        .fuel-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
            gap: var(--spacing-sm);
        }

        .fuel-card {
            background: linear-gradient(145deg, var(--card-bg) 0%, #f9fafb 100%);
            border-radius: var(--border-radius-lg);
            padding: 0;
            box-shadow: 0 12px 20px rgba(0, 0, 0, 0.12);
            border: 1px solid rgba(229, 231, 235, 0.8);
            overflow: hidden;
            transition: var(--transition);
        }

        .fuel-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.18);
        }

        .fuel-header {
            padding: var(--spacing-md);
            color: white;
            text-align: center;
            font-size: clamp(1.4rem, 3vw, 1.8rem);
            font-weight: 700;
            text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.3);
            position: relative;
        }

        .fuel-header.magna {
            background: linear-gradient(135deg, var(--success-color) 0%, var(--success-dark) 100%);
        }

        .fuel-header.premium {
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
        }

        .fuel-header.diesel {
            background: linear-gradient(135deg, var(--secondary-color) 0%, var(--secondary-dark) 100%);
        }

        .fuel-body {
            padding: var(--spacing-sm);
        }

        .metric-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: var(--spacing-sm) 0;
            border-bottom: 1px solid rgba(229, 231, 235, 0.6);
            transition: var(--transition);
        }

        .metric-row:last-child {
            border-bottom: none;
        }

        .metric-row:hover {
            background: linear-gradient(90deg, transparent, rgba(220, 38, 38, 0.05), transparent);
            padding-left: 10px;
            border-radius: 8px;
        }

        .metric-label {
            font-weight: 500;
            color: var(--secondary-color);
            font-size: clamp(0.9rem, 2vw, 1rem);
        }

        .metric-value {
            font-size: clamp(1.1rem, 2.5vw, 1.3rem);
            font-weight: 700;
            color: var(--text-color);
            text-align: right;
            font-family: 'Courier New', monospace;
        }

        .metric-value.volume {
            color: var(--success-color);
        }

        .metric-value.sales {
            color: var(--primary-color);
        }

        .metric-value.amount {
            color: #7c2d12;
        }

        .progress-bar {
            width: 100%;
            height: 6px;
            background: #e5e7eb;
            border-radius: 3px;
            margin-top: var(--spacing-xs);
            overflow: hidden;
        }

        .progress-fill {
            height: 100%;
            border-radius: 3px;
            transition: width 0.8s ease;
        }

        .progress-fill.magna {
            background: linear-gradient(90deg, #10b981, var(--success-color));
        }

        .progress-fill.premium {
            background: linear-gradient(90deg, #ef4444, var(--primary-color));
        }

        .progress-fill.diesel {
            background: linear-gradient(90deg, var(--secondary-color), var(--secondary-dark));
        }

        /* SECCIÓN RFC */
        .rfc-header h3 {
            text-align: center;
            font-size: clamp(1.2rem, 3vw, 1.5rem);
            font-weight: 700;
            margin: var(--spacing-xl) 0 var(--spacing-md);
            padding: var(--spacing-sm);
            background: linear-gradient(135deg, var(--secondary-color) 0%, var(--secondary-dark) 100%);
            color: white;
            border-radius: var(--border-radius);
            text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.3);
            box-shadow: 0 8px 25px rgba(55, 65, 81, 0.3);
        }

        .rfc-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: var(--spacing-sm);
        }
        
        .rfc-item {
            background: linear-gradient(145deg, var(--card-bg) 0%, #f1f5f9 100%);
            border-radius: var(--border-radius);
            padding: var(--spacing-sm);
            border-left: 4px solid var(--primary-color);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .rfc-item::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 40px;
            height: 100%;
            background: linear-gradient(180deg, rgba(220, 38, 38, 0.1) 0%, transparent 100%);
            pointer-events: none;
        }

        .rfc-item:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.12);
            border-left-color: var(--primary-dark);
        }

        .rfc-label {
            font-size: clamp(0.8rem, 2vw, 0.9rem);
            font-weight: 600;
            color: var(--secondary-color);
            margin-bottom: 0.5rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .rfc-value {
            font-size: clamp(0.9rem, 2.5vw, 1.1rem);
            font-weight: 700;
            color: var(--text-color);
            word-break: break-all;
            font-family: 'Courier New', monospace;
            background: rgba(220, 38, 38, 0.05);
            padding: var(--spacing-xs);
            border-radius: 6px;
            border: 1px solid rgba(220, 38, 38, 0.1);
            display: flex;
            align-items: center;
        }

        .rfc-value i {
            color: var(--primary-color);
            font-size: 1rem;
            flex-shrink: 0;
        }

        /* SECCIÓN EXISTENCIAS */
        .existencias-header h3 {
            text-align: center;
            font-size: clamp(1.2rem, 3vw, 1.5rem);
            font-weight: 700;
            margin: var(--spacing-xl) 0 var(--spacing-md);
            background: linear-gradient(135deg, var(--secondary-color) 0%, var(--secondary-dark) 100%);
            color: white;
            padding: var(--spacing-sm);
            border-radius: var(--border-radius);
            text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.3);
        }

        .existencias-table {
            margin: 0 var(--spacing-md) var(--spacing-xl);
            background: linear-gradient(145deg, var(--card-bg) 0%, #fafbfb 100%);
            border-radius: var(--border-radius-lg);
            overflow: hidden;
            box-shadow: 0 20px 40px rgba(52, 107, 92, 0.08),
                        0 8px 25px rgba(0, 0, 0, 0.05),
                        inset 0 1px 0 rgba(255, 255, 255, 0.9);
            border: 2px solid rgba(52, 107, 92, 0.12);
            position: relative;
            overflow-x: auto;
        }

        .existencias-table::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, 
                rgba(244, 249, 247, 0.7) 0%, 
                rgba(240, 248, 244, 0.5) 50%,
                rgba(248, 250, 249, 0.3) 100%);
            z-index: -1;
        }

        #tablaExistencias {
            margin: 0;
            border-collapse: separate;
            border-spacing: 0;
            width: 100%;
            min-width: 500px;
        }

        .table-header {
            background: linear-gradient(135deg, var(--success-color) 0%, var(--success-dark) 100%);
            position: relative;
            overflow: hidden;
        }

        .table-header::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(90deg, 
                rgba(185, 207, 195, 0.15) 0%, 
                rgba(165, 195, 180, 0.2) 25%,
                transparent 50%, 
                rgba(165, 195, 180, 0.2) 75%,
                rgba(185, 207, 195, 0.15) 100%);
            pointer-events: none;
        }

        .table-header th {
            padding: var(--spacing-sm);
            font-weight: 700;
            text-align: center;
            border: none;
            font-size: clamp(0.8rem, 2vw, 1rem);
            color: white;
            text-shadow: 1px 1px 2px rgba(52, 107, 92, 0.6);
            letter-spacing: 0.5px;
            text-transform: uppercase;
            position: relative;
            background: linear-gradient(135deg, rgba(185, 207, 195, 0.1) 0%, transparent 100%);
        }

        .table-header th:first-child {
            border-top-left-radius: 18px;
        }

        .table-header th:last-child {
            border-top-right-radius: 18px;
        }

        .table-body tr {
            transition: var(--transition);
            position: relative;
            background: linear-gradient(135deg, 
                rgba(255, 255, 255, 0.95) 0%, 
                rgba(250, 252, 251, 0.9) 100%);
        }

        .table-body tr:nth-child(odd) {
            background: linear-gradient(135deg, 
                rgba(244, 249, 247, 0.4) 0%, 
                rgba(248, 251, 249, 0.3) 100%);
        }

        .table-body tr:hover {
            background: linear-gradient(90deg, 
                rgba(52, 107, 92, 0.06) 0%, 
                rgba(74, 125, 106, 0.08) 25%,
                rgba(90, 143, 122, 0.1) 50%,
                rgba(74, 125, 106, 0.08) 75%,
                rgba(52, 107, 92, 0.06) 100%);
            transform: translateY(-2px) scale(1.005);
            box-shadow: 0 12px 28px rgba(52, 107, 92, 0.15),
                        0 6px 18px rgba(74, 125, 106, 0.1);
            z-index: 10;
        }

        .table-body tr:last-child td:first-child {
            border-bottom-left-radius: 18px;
        }

        .table-body tr:last-child td:last-child {
            border-bottom-right-radius: 18px;
        }

        .table-body td {
            padding: var(--spacing-sm);
            vertical-align: middle;
            border-bottom: 1px solid rgba(52, 107, 92, 0.08);
            transition: var(--transition);
            position: relative;
            text-align: center;
            font-size: clamp(0.8rem, 2vw, 1rem);
        }

        .table-body td::before {
            content: '';
            position: absolute;
            bottom: 0;
            left: 25px;
            right: 25px;
            height: 1px;
            background: linear-gradient(90deg, 
                transparent 0%, 
                rgba(52, 107, 92, 0.2) 20%,
                rgba(74, 125, 106, 0.25) 50%,
                rgba(52, 107, 92, 0.2) 80%,
                transparent 100%);
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .table-body tr:hover td::before {
            opacity: 1;
        }

        .table-body tr:last-child td {
            border-bottom: none;
        }

        .table-body tr:last-child td::before {
            display: none;
        }

        .table-body td:first-child {
            text-align: center;
            font-weight: 600;
            color: #4a6b5c;
        }

        .table-body td:last-child {
            text-align: center;
            font-weight: 700;
            font-size: clamp(1rem, 2.5vw, 1.15rem);
            color: #52766f;
            text-shadow: 0 1px 2px rgba(52, 107, 92, 0.08);
        }

        /* SECCIÓN RECEPCIONES */
        .recepciones-header h3 {
            text-align: center;
            font-size: clamp(1.2rem, 3vw, 1.5rem);
            font-weight: 700;
            margin: var(--spacing-xl) 0 var(--spacing-md);
            background: linear-gradient(135deg, var(--secondary-color) 0%, var(--secondary-dark) 100%);
            color: white;
            padding: var(--spacing-sm);
            border-radius: var(--border-radius);
            text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.3);
        }

        .recepciones-table {
            background: var(--card-bg);
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
            border: 1px solid rgba(229, 231, 235, 0.8);
            overflow-x: auto;
        }

        .recepciones-table table {
            font-size: clamp(0.8rem, 2vw, 0.9rem);
            min-width: 600px;
            width: 100%;
        }

        .recepciones-table .table-header {
            background: linear-gradient(135deg, var(--secondary-color) 0%, var(--secondary-dark) 100%);
        }

        .recepciones-table .table-header th {
            padding: var(--spacing-xs) var(--spacing-sm);
            white-space: nowrap;
        }

        .recepciones-table .table-body td {
            padding: var(--spacing-xs) var(--spacing-sm);
        }

        /* FOOTER */
        .custom-footer {
            background-color: var(--dark-color) !important;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            padding: var(--spacing-xs) 0;
            z-index: 1000;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
        }
        
        .footer-text {
            font-family: sans-serif; 
            color: white;
            font-weight: 700;
            margin: 0;
            text-align: center;
            padding: var(--spacing-xs) var(--spacing-sm);
            line-height: 1.4;
            font-size: clamp(0.7rem, 2.5vw, 0.9rem);
        }
/* OCULTO */
       .oculto {
    display: none !important;  
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
}
        /* MEDIA QUERIES GENERALES */
        @media (max-width: 1200px) {
            .container {
                padding: var(--spacing-sm);
            }
            
            .main-container {
                padding: var(--spacing-md);
            }
        }

        @media (max-width: 992px) {
            .header-container {
                justify-content: center;
            }
            
            .logo-container {
                order: 1;
                flex: 0 0 33.333%;
                justify-content: flex-start;
            }
            
            .title-container {
                order: 3;
                flex: 0 0 100%;
                text-align: center;
            }
            
            .date-container {
                order: 2;
                flex: 0 0 33.333%;
                justify-content: flex-end;
            }
            
            .logo-img {
                max-width: 120px;
            }
            
            .fuel-grid {
                grid-template-columns: repeat(auto-fit, minmax(min(100%, 250px), 1fr));
            }
        }

        @media (max-width: 768px) {
            body {
                padding-bottom: 50px;
            }
            
            .header-title {
                font-size: 1.25rem;
            }
            
            .header-date {
                font-size: 0.9rem;
            }
            
            .logo-img {
                max-width: 100px;
            }
            
            #dropAreaEstilos {
                min-height: 18.75rem;
                margin: var(--spacing-lg) auto;
                padding: var(--spacing-sm);
                width: 95%;
            }
            
            .select-button {
                padding: 0.625rem 1.25rem;
                min-width: 120px;
            }
            
            .header {
                padding: 1.25rem;
                margin-bottom: var(--spacing-lg);
                border-radius: 12px;
            }
            
            .header h1 {
                font-size: clamp(1.4rem, 5vw, 1.8rem);
            }
            
            .existencias-table {
                margin: 0 var(--spacing-sm) var(--spacing-lg);
            }
            
            .custom-footer {
                padding: 0.4rem 0;
            }
            
            .footer-text {
                font-size: 0.85rem;
                padding: 0.4rem 0.8rem;
            }
        }

        @media (max-width: 576px) {
            .header-container {
                flex-direction: column;
                text-align: center;
                padding: var(--spacing-xs);
            }
            
            .logo-container, .title-container, .date-container {
                flex: 0 0 100%;
                justify-content: center;
                width: 100%;
            }
            
            .logo-container {
                order: 1;
            }
            
            .title-container {
                order: 2;
                padding: var(--spacing-xs) 0;
            }
            
            .date-container {
                order: 3;
            }
            
            .header-title {
                font-size: 1.1rem;
            }
            
            .header-date {
                font-size: 0.85rem;
            }
            
            .logo-img {
                max-width: 90px;
                padding: 0.25rem;
            }
            
            #dropAreaEstilos {
                min-height: 15.625rem;
                border-radius: 1rem;
                font-size: 1rem;
            }
            
            .upload-icon {
                font-size: 2.5rem;
                margin-bottom: 0.75rem;
            }
            
            .select-button {
                padding: 0.5rem 1rem;
                font-size: 0.875rem;
                min-width: 110px;
            }
            
            .file-info {
                padding: 0.875rem;
                font-size: 0.875rem;
            }
            
            .header {
                padding: 1rem;
                margin-bottom: var(--spacing-md);
                border-radius: 10px;
            }
            
            .header h1 {
                font-size: clamp(1.2rem, 5vw, 1.5rem);
                padding: 0 0.5rem;
            }
            
            .summary-cards {
                grid-template-columns: 1fr;
            }
            
            .fuel-grid {
                grid-template-columns: 1fr;
            }
            
            .custom-footer {
                padding: 0.3rem 0;
            }
            
            .footer-text {
                font-size: 0.75rem;
                padding: 0.3rem 0.6rem;
                line-height: 1.3;
            }
        }

        @media (max-width: 400px) {
            .header {
                padding: 0.8rem;
            }
            
            .header h1 {
                font-size: 1.1rem;
            }
            
            .footer-text {
                font-size: 0.7rem;
                padding: 0.2rem 0.4rem;
            }
            
            .container {
                padding: 0.5rem;
            }
            
            .main-container {
                padding: 1rem;
                border-radius: 10px;
            }
        }
/* Contenedor del botón */
.boton-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 16px;          /* espacio entre botones */
    padding: 8px;
    margin: 8px 0;
    flex-wrap: wrap;    /* permite que se ajusten en pantallas pequeñas */
}

/* Botón Reiniciar Mejorado */
.btn-reiniciar {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 32px;
    font-size: 1.1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
   box-shadow: 0 8px 25px rgba(220, 38, 38, 0.25),   /* rojo intenso */
            0 4px 12px rgba(185, 28, 28, 0.15);   /* vino oscuro */

/* Gradiente principal en rojos */
background: linear-gradient(135deg, 
    #991b1b 0%,    /* rojo vino */
    #b91c1c 25%,   /* rojo fuerte */
    #dc2626 50%,   /* rojo moderno */
    #ef4444 75%,   /* rojo vivo */
    #f87171 100%   /* rojo coral */
);
    
    color: white;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    min-width: 160px;
    z-index: 10;
}

/* Efecto de brillo */
.btn-reiniciar::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255, 255, 255, 0.4), 
        transparent);
    transition: left 0.6s ease;
    z-index: 1;
}

/* Efecto hover */
.btn-reiniciar:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 15px 40px rgba(220, 38, 38, 0.4),   /* rojo intenso */
                0 8px 25px rgba(185, 28, 28, 0.3),    /* vino oscuro */
                0 0 0 3px rgba(248, 113, 113, 0.2);   /* rojo coral suave */

    background: linear-gradient(135deg, 
        #991b1b 0%,    /* rojo vino */
        #b91c1c 25%,   /* rojo fuerte */
        #dc2626 50%,   /* rojo moderno */
        #ef4444 75%,   /* rojo vivo */
        #f87171 100%   /* rojo coral */
    );
}

.btn-reiniciar:hover::before {
    left: 100%;
}

/* Efecto active/click */
.btn-reiniciar:active {
    transform: translateY(-1px) scale(1.02);
    box-shadow: 0 8px 20px rgba(220, 38, 38, 0.3),   /* rojo intenso */
                0 4px 12px rgba(185, 28, 28, 0.2);   /* rojo vino oscuro */
}


/* Icono opcional */
.btn-reiniciar i {
    margin-right: 8px;
    font-size: 1.2rem;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
}

/* Estados especiales */
.btn-reiniciar:focus {
    outline: none;
    box-shadow: 0 8px 25px rgba(220, 38, 38, 0.25),   /* rojo intenso */
                0 4px 12px rgba(185, 28, 28, 0.15),   /* rojo vino oscuro */
                0 0 0 4px rgba(248, 113, 113, 0.3);   /* rojo suave para halo */
}

.btn-reiniciar:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: 0 4px 12px rgba(220, 38, 38, 0.15);
}



.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 768px) {
    .boton-container {
        padding: 15px 10px;
        margin: 20px 0;
    }
    
    .btn-reiniciar {
        padding: 14px 28px;
        font-size: 1rem;
        min-width: 140px;
        border-radius: 40px;
    }
    
    .btn-reiniciar i {
        font-size: 1.1rem;
        margin-right: 6px;
    }
}

@media (max-width: 480px) {
    .btn-reiniciar {
        padding: 12px 24px;
        font-size: 0.95rem;
        min-width: 120px;
        letter-spacing: 0.5px;
    }
    
    .btn-reiniciar:hover {
        transform: translateY(-2px) scale(1.03);
    }
}

@media (max-width: 320px) {
    .btn-reiniciar {
        padding: 10px 20px;
        font-size: 0.9rem;
        min-width: 100px;
    }
}

/* Animación de entrada */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.btn-reiniciar.mostrar {
    animation: fadeInUp 0.6s ease forwards;
}

/* Botón Descargar PDF */
.btn-descargar {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 32px;
    font-size: 1.1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 8px 25px rgba(22, 163, 74, 0.25),   /* verde intenso */
                0 4px 12px rgba(21, 128, 61, 0.15);   /* verde oscuro */

    /* Gradiente principal en verdes */
    background: linear-gradient(135deg, 
        #15803d 0%,    /* verde oscuro */
        #16a34a 25%,   /* verde fuerte */
        #22c55e 50%,   /* verde moderno */
        #4ade80 75%,   /* verde vivo */
        #86efac 100%   /* verde claro */
    );
    
    color: white;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    min-width: 160px;
    z-index: 10;
}

/* Efecto de brillo para PDF */
.btn-descargar::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255, 255, 255, 0.4), 
        transparent);
    transition: left 0.6s ease;
    z-index: 1;
}

/* Efecto hover para PDF */
.btn-descargar:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 15px 40px rgba(22, 163, 74, 0.4),   /* verde intenso */
                0 8px 25px rgba(21, 128, 61, 0.3),    /* verde oscuro */
                0 0 0 3px rgba(134, 239, 172, 0.2);   /* verde claro suave */

    background: linear-gradient(135deg, 
        #15803d 0%,
        #16a34a 25%,
        #22c55e 50%,
        #4ade80 75%,
        #86efac 100%
    );
}

.btn-descargar:hover::before {
    left: 100%;
}

/* Efecto active/click para PDF */
.btn-descargar:active {
    transform: translateY(-1px) scale(1.02);
    box-shadow: 0 8px 20px rgba(22, 163, 74, 0.3),
                0 4px 12px rgba(21, 128, 61, 0.2);
}

/* Icono para PDF */
.btn-descargar i {
    margin-right: 8px;
    font-size: 1.2rem;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
}

/* Estados especiales para PDF */
.btn-descargar:focus {
    outline: none;
    box-shadow: 0 8px 25px rgba(22, 163, 74, 0.25),
                0 4px 12px rgba(21, 128, 61, 0.15),
                0 0 0 4px rgba(134, 239, 172, 0.3);
}

.btn-descargar:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: 0 4px 12px rgba(22, 163, 74, 0.15);
}

/* Responsive Design para ambos botones */
@media (max-width: 768px) {
    .boton-container {
        gap: 12px;
    }
    
    .btn-descargar {
        padding: 14px 28px;
        font-size: 1rem;
        min-width: 140px;
        border-radius: 40px;
    }
    
    .btn-descargar i {
        font-size: 1.1rem;
        margin-right: 6px;
    }
}

@media (max-width: 480px) {
    .boton-container {
        gap: 10px;
    }
    
    .btn-descargar {
        padding: 12px 24px;
        font-size: 0.95rem;
        min-width: 120px;
        letter-spacing: 0.5px;
    }
    
    .btn-descargar:hover {
        transform: translateY(-2px) scale(1.03);
    }
}

@media (max-width: 320px) {
    .btn-descargar {
        padding: 10px 20px;
        font-size: 0.9rem;
        min-width: 100px;
    }
}

/* Animación de entrada para PDF */
.btn-descargar.mostrar {
    animation: fadeInUp 0.6s ease forwards;
}


/* Tarjeta principal */
/* Tarjeta principal */
.error-card {
  border-radius: 16px;
  overflow: hidden;
  background: #ffffff;
  border: 1px solid rgba(220, 38, 38, 0.15); /* borde sutil */
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  max-width: 600px;
}

.error-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 15px 35px rgba(220, 38, 38, 0.15);
}

/* Header con gradiente rojo */
.bg-gradient-error {
  background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
  padding: 18px;
  border-bottom: none;
  font-size: 1.1rem;
  letter-spacing: 0.5px;
  position: relative;
}

.bg-gradient-error::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(45deg, rgba(255,255,255,0.1) 0%, transparent 100%);
}

/* Lista de errores */
.errores-lista .error-item {
  background: #f9fafb; /* elegante, sin colores fuertes */
  border: 1px solid #e5e7eb;
  padding: 12px 16px;
  margin-bottom: 12px;
  border-radius: 12px;
  color: #374151;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: all 0.3s ease;
}

.errores-lista .error-item i {
  font-size: 1.1rem;
  color: #6b7280; /* gris elegante */
}

.errores-lista .error-item:hover {
  background: #f3f4f6;
  transform: translateX(6px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
}


/* Centra la última columna de la tabla de DETALLE RECEPCIONES */
  #tablaRecepciones th:last-child,
  #tablaRecepciones td:last-child {
    text-align: center !important;
  }

  /* Centra la primera celda de la última fila (la del "Total CFDIs") */
  #tablaRecepciones tbody tr:last-child td:first-child { 
    text-align: center !important; 
  }