/* Base Variables */
        :root {
            --primary: #ff6b6b;
            --secondary: #4ecdc4;
            --accent: #ffe66d;
            --background: #f7fff7;
            --text: #1a535c;
            --dark: #2f4858;
            --light: #f7fff7;
            --danger: #ff5252;
            --success: #6bff6b;
            --warning: #ffd166;
            --info: #118ab2;         
            --border-radius: 0;
            --border-width: 1.5px;
--inset-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.2);
            --shadow: 0 1px 0 rgba(255, 255, 255, 0.5), 0 2px 2px rgba(0, 0, 0, 0.3); 
            --font-mono: 'Times New Roman', Courier, monospace;
            --font-sans: 'Times New Roman', 'Arial', sans-serif;
            --font-serif: 'Times New Roman', Times, serif;
            --spacing-xs: 0.25rem;
            --spacing-sm: 0.5rem;
            --spacing-md: .5rem;
            --spacing-lg: .5rem;
            --spacing-xl: 2rem;
            --spacing-xxl: 1rem;
            --spacing-1x: .7rem;        }

        /* Reset & Base Styles */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-mono);
            background-color: var(--background);
            color: var(--text);
            line-height: 1.5;
            padding: 0;
            margin: 0;
            background-image: 
                linear-gradient(rgba(255, 255, 255, 0.8) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.8) 1px, transparent 1px);
            background-size: 20px 20px;
        }

        /* Layout */
        .container {
            margin: 1px;
            padding: 0px;
        }

        .section {
            margin: 0;
            padding: 3px;
            border: var(--border-width) solid var(--text);
            box-shadow: var(--shadow);
            background-color: var(--light);
        }

        .row {
            display: flex;
            flex-wrap: wrap;
            margin: 0 -1rem;
        }

        .col {
            flex: 1;
            padding: 0 1rem;
            min-width: 250px;
        }

        @media (max-width: 768px) {
            .row {
                flex-direction: column;
            }
            
            .col {
                margin-bottom: var(--spacing-lg);
            }
        }

        /* Typography */
        h1, h2, h3, h4, h5, h6 {
            font-family: var(--font-mono);
            font-weight: 700;
            margin-bottom: var(--spacing-md);
            color: var(--text);
            text-transform: uppercase;
        }

        h1 {
            font-size: 2.5rem;
            margin-bottom: var(--spacing-lg);
            text-align: center;
            text-shadow: 3px 3px 0 rgba(0, 0, 0, 0.1);
            letter-spacing: -1px;
        }

        h2 {
            font-size: 2rem;
            border-bottom: var(--border-width) solid var(--text);
            padding-bottom: var(--spacing-sm);
            margin-bottom: var(--spacing-lg);
        }

        h3 {
            font-size: 1.5rem;
        }

        h4 {
            font-size: 1.25rem;
        }

        h5 {
            font-size: 1rem;
        }

        h6 {
            font-size: 0.875rem;
        }

        p {
            margin-bottom: var(--spacing-md);
        }

        /* Form Elements */
        .form-group {
            margin-bottom: var(--spacing-lg);
        }

        .label {
            display: block;
            margin-bottom: var(--spacing-sm);
            font-weight: 700;
            text-transform: uppercase;
        }

        .input,
        input[type="number"], 
        .textarea,
        .select {
            display: block;
            width: 100%;
            padding: var(--spacing-md);
            font-family: var(--font-mono);
            font-size: 1rem;
            border: var(--border-width) solid var(--text);
            background-color: var(--light);
            color: var(--text);
            box-shadow: var(--shadow);
            transition: all 0.2s ease;
        }

        .input:focus,
        .textarea:focus,
        .select:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 4px 4px 0 rgba(255, 107, 107, 0.4);
        }

        .textarea {
            min-height: 120px;
            resize: vertical;
        }

        .select {
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%231a535c' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 1rem center;
            background-size: 1em;
            padding-right: 2.5rem;
        }

        .radio-group,
        .checkbox-group {
            margin-bottom: var(--spacing-md);
        }

        .radio-container,
        .checkbox-container {
            display: flex;
            align-items: center;
            margin-bottom: var(--spacing-sm);
            cursor: pointer;
        }

        .radio,
        .checkbox {
            margin-right: var(--spacing-sm);
            width: 1.25rem;
            height: 1.25rem;
            cursor: pointer;
        }

        /* Custom radio and checkbox styling */
        .custom-control {
            position: relative;
            padding-left: 2rem;
            margin-bottom: var(--spacing-sm);
            cursor: pointer;
            user-select: none;
        }

        .custom-control input {
            position: absolute;
            opacity: 0;
            cursor: pointer;
            height: 0;
            width: 0;
        }

        .checkmark {
            position: absolute;
            top: 0;
            left: 0;
            height: 1.25rem;
            width: 1.25rem;
            background-color: var(--light);
            border: var(--border-width) solid var(--text);
            box-shadow: 2px 2px 0 rgba(0, 0, 0, 0.2);
        }

        .custom-radio .checkmark {
            border-radius: 50%;
        }

        .custom-control:hover input ~ .checkmark {
            background-color: var(--accent);
        }

        .custom-control input:checked ~ .checkmark {
            background-color: var(--primary);
        }

        .checkmark:after {
            content: "";
            position: absolute;
            display: none;
        }

        .custom-control input:checked ~ .checkmark:after {
            display: block;
        }

        .custom-checkbox .checkmark:after {
            left: 6px;
            top: 2px;
            width: 5px;
            height: 10px;
            border: solid white;
            border-width: 0 2px 2px 0;
            transform: rotate(45deg);
        }

        .custom-radio .checkmark:after {
            top: 5px;
            left: 5px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: white;
        }

        /* Buttons */
        .button, submit {
            display: inline-block;
            padding: var(--spacing-md) var(--spacing-lg);
            font-family: var(--font-mono);
            font-size: 1.2rem;
            font-weight: 700;
            text-transform: uppercase;
            text-align: center;
            text-decoration: none;
            color: var(--text);
            background-color: var(--light);
            border: var(--border-width) solid var(--text);
            box-shadow: var(--shadow);
            cursor: pointer;
            transition: all 0.2s ease;
            position: relative;
            top: 0;
            left: 0;
        }

        .button:hover {
            top: 2px;
            left: 2px;
            box-shadow: 2px 2px 0 rgba(0, 0, 0, 0.2);
        }

        .button:active {
            top: 4px;
            left: 4px;
            box-shadow: none;
        }

        .button-primary {
            background-color: var(--primary);
            color: white;
            border-color: var(--text);
        }

        .button-secondary {
            background-color: var(--secondary);
            color: white;
            border-color: var(--text);
        }

        .button-accent {
            background-color: var(--accent);
            color: var(--text);
            border-color: var(--text);
        }

        .button-danger {
            background-color: var(--danger);
            color: white;
            border-color: var(--text);
        }

        .button-success {
            background-color: var(--success);
            color: var(--text);
            border-color: var(--text);
        }

        .button-warning {
            background-color: var(--warning);
            color: var(--text);
            border-color: var(--text);
        }

        .button-info {
            background-color: var(--info);
            color: white;
            border-color: var(--text);
        }

        .button-hide {
            background-color: var(--info);
            color: white;
            display: none;
            border-color: var(--text);
        }
        
        .button-sm {
            padding: var(--spacing-sm) var(--spacing-md);
            font-size: 0.875rem;
        }

        .button-lg {
            padding: var(--spacing-lg) var(--spacing-xl);
            font-size: 1.25rem;
        }

        /* Fieldset */
        .fieldset {
            border: var(--border-width) solid var(--text);
            padding: var(--spacing-lg);
            margin-bottom: var(--spacing-lg);
            box-shadow: var(--shadow);
        }

        .fieldset legend {
            padding: 0 var(--spacing-sm);
            font-weight: 700;
            text-transform: uppercase;
        }

        /* Dialog */
        .dialog-backdrop {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.5);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 1000;
        }

        .dialog {
            background-color: var(--light);
            border: var(--border-width) solid var(--text);
            box-shadow: var(--shadow);
            max-width: 500px;
            width: 100%;
            padding: var(--spacing-xl);
            position: relative;
        }

        .dialog-header {
            margin-bottom: var(--spacing-md);
            padding-bottom: var(--spacing-sm);
            border-bottom: var(--border-width) solid var(--text);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .dialog-title {
            font-weight: 700;
            text-transform: uppercase;
            margin: 0;
        }

        .dialog-close {
            background: none;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--text);
        }

        .dialog-body {
            margin-bottom: var(--spacing-lg);
        }

        .dialog-footer {
            display: flex;
            justify-content: flex-end;
            gap: var(--spacing-md);
        }

        /* Details & Summary */
        .details {
            margin-bottom: var(--spacing-md);
            border: var(--border-width) solid var(--text);
            box-shadow: var(--shadow);
        }

        .summary {
            padding: var(--spacing-md);
            font-weight: 700;
            cursor: pointer;
            background-color: var(--light);
            border-bottom: var(--border-width) solid transparent;
            text-transform: uppercase;
        }

        .details[open] .summary {
            border-bottom-color: var(--text);
        }

        .details-content {
            padding: var(--spacing-md);
        }

        /* Media Elements */
        .media-container {
            margin-bottom: var(--spacing-lg);
        }

        .img {
            max-width: 100%;
            height: auto;
            border: var(--border-width) solid var(--text);
            box-shadow: var(--shadow);
        }
        

        .video,
        .audio {
            width: 100%;
            border: var(--border-width) solid var(--text);
            box-shadow: var(--shadow);
        }

        .iframe {
            width: 100%;
            border: var(--border-width) solid var(--text);
            box-shadow: var(--shadow);
            background-color: var(--light);
        }

        /* Text Elements */
        .blockquote {
            margin: var(--spacing-lg) 0;
            padding: var(--spacing-lg);
            border-left: 4px solid var(--primary);
            background-color: rgba(255, 107, 107, 0.1);
            font-style: italic;
        }

        .blockquote p:last-child {
            margin-bottom: 0;
        }

        .em {
            font-style: italic;
        }

        .strong {
            font-weight: 700;
        }

        .span {
            display: inline;
        }

        .pre {
            font-family: var(--font-mono);
            background-color: var(--dark);
            color: var(--light);
            padding: var(--spacing-md);
            margin-bottom: var(--spacing-lg);
            overflow-x: auto;
            border: var(--border-width) solid var(--text);
            box-shadow: var(--shadow);
        }

        .code {
            font-family: var(--font-mono);
            background-color: rgba(26, 83, 92, 0.1);
            padding: 0.2em 0.4em;
            border-radius: 3px;
        }

        /* Lists */
        .ul,
        .ol {
            margin-bottom: var(--spacing-lg);
            padding-left: 2rem;
        }

        .li {
            margin-bottom: var(--spacing-sm);
        }

        .dl {
            margin-bottom: var(--spacing-lg);
        }

        .dt {
            font-weight: 700;
            margin-bottom: var(--spacing-xs);
        }

        .dd {
            margin-left: var(--spacing-lg);
            margin-bottom: var(--spacing-md);
        }

        /* Tables */
        .table-container {
            margin-bottom: var(--spacing-lg);
            overflow-x: auto;
        }

        .table {
            width: 100%;
            border-collapse: collapse;
            border: var(--border-width) solid var(--text);
            box-shadow: var(--shadow);
        }

        .table th,
        .table td {
            padding: var(--spacing-md);
            text-align: left;
            border: 1px solid var(--text);
        }

        .table th {
            background-color: var(--accent);
            font-weight: 700;
            text-transform: uppercase;
        }

        .table tr:nth-child(even) {
            background-color: rgba(78, 205, 196, 0.1);
        }

        .table tr:hover {
            background-color: rgba(255, 107, 107, 0.1);
        }

        .table thead {
            border-bottom: 2px solid var(--text);
        }

        .table tfoot {
            border-top: 2px solid var(--text);
            font-weight: 700;
        }

        /* Links */
        .a {
            color: var(--primary);
            text-decoration: none;
            font-weight: 700;
            position: relative;
            transition: all 0.2s ease;
        }

        .a:hover {
            color: var(--secondary);
        }

        .a:after {
            content: '';
            position: absolute;
            width: 100%;
            height: 2px;
            bottom: -2px;
            left: 0;
            background-color: var(--primary);
            transform: scaleX(0);
            transform-origin: bottom right;
            transition: transform 0.3s ease;
        }

        .a:hover:after {
            transform: scaleX(1);
            transform-origin: bottom left;
            background-color: var(--secondary);
        }

        /* File Upload */
        .file-upload {
            margin-bottom: var(--spacing-lg);
        }

        .file-upload-label {
            display: block;
            padding: var(--spacing-1x);
            border: 2px dashed var(--text);
            background-color: rgba(255, 230, 109, 0.2);
            text-align: center;
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .file-upload-label:hover {
            background-color: rgba(255, 230, 109, 0.4);
        }

        .file-upload-input {
            display: none;
        }

        .file-upload-preview {
            margin-top: var(--spacing-md);
            padding: var(--spacing-md);
            border: var(--border-width) solid var(--text);
            background-color: var(--light);
            display: none;
        }

        .file-upload-preview.active {
            display: block;
        }

        .file-upload-name {
            font-weight: 700;
            margin-bottom: var(--spacing-sm);
        }

        .file-upload-size {
            font-size: 0.875rem;
            color: var(--text);
            opacity: 0.8;
        }

        .file-upload-remove {
            margin-top: var(--spacing-sm);
        }



/*
input[type=file] {
            background: white;
            border-radius: 5px;
            color: #000a47;
            width: 100%;
            display: inline;
            padding: 0px;
            margin-bottom: 10px;
            border: 1px solid #000a47;}
input[type=file]::file-selector-button {
            margin-right: 15px;
            border: none;
            background: #000a47;
            padding: 10px 20px;
            color: #1de9b6;
            cursor: pointer;
            transition: background 0.2s ease-in-out;
            border-right: 1px solid #000a47;}
input[type=file]::file-selector-button:hover {
            background: #1de9b6;
            color: #000a47;
            cursor: pointer;
            transition: background 0.2s ease-in-out;}
           */
          
           
           
        /* FAQ Accordion */
        .faq-container {
            margin-bottom: var(--spacing-lg);
        }

        .faq-item {
            margin-bottom: var(--spacing-md);
            border: var(--border-width) solid var(--text);
            box-shadow: var(--shadow);
        }

        .faq-question {
            padding: var(--spacing-md);
            font-weight: 700;
            cursor: pointer;
            background-color: var(--light);
            display: flex;
            justify-content: space-between;
            align-items: center;
            text-transform: uppercase;
        }

        .faq-question:after {
            content: '+';
            font-size: 1.5rem;
            transition: transform 0.3s ease;
        }

        .faq-item.active .faq-question:after {
            transform: rotate(45deg);
        }

        .faq-answer {
            padding: 0 var(--spacing-md);
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
        }

        .faq-item.active .faq-answer {
            padding: var(--spacing-md);
            max-height: 500px;
            border-top: 1px solid var(--text);
        }

        /* Header & Navigation */
        .header {
            background-color: var(--text);
            color: var(--light);
            padding: var(--spacing-md) 0;
            margin-bottom: var(--spacing-xl);
            box-shadow: 0 4px 0 rgba(0, 0, 0, 0.1);
        }

        .nav {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: var(--spacing-md);
        }

        .nav-link {
            color: var(--light);
            text-decoration: none;
            font-weight: 700;
            text-transform: uppercase;
            padding: var(--spacing-sm) var(--spacing-md);
            transition: all 0.2s ease;
        }

        .nav-link:hover {
            background-color: var(--primary);
            color: white;
        }

        /* Footer */
        .footer {
            background-color: var(--text);
            color: var(--light);
            padding: 0px 0;
            margin-top: var(--spacing-xxl);
            text-align: center;
        }
        
        /* मिसिंग स्टाइल्स जोड़ें */
        .card {
            background: var(--light);
            border: var(--border-width) solid var(--text);
            padding: var(--spacing-lg);
            box-shadow: var(--shadow);
            margin-bottom: var(--spacing-lg);
        }
        
        .progress-bar {
            height: 1.5rem;
            background: var(--light);
            border: var(--border-width) solid var(--text);
            box-shadow: var(--inset-shadow);
        }
        
        .progress-fill {
            height: 100%;
            background: var(--primary);
            width: 65%;
            transition: width 0.3s ease;
        }
        
        .tooltip {
            position: relative;
            border-bottom: 1px dotted var(--primary);
        }
        
        .tooltip-text {
            position: absolute;
            bottom: 100%;
            left: 90%;
            transform: translateX(-50%);
            background: var(--dark);
            color: var(--light);
            white-space: nowrap;
            display: none;
        }
        
        .spinner-container {
            display: none;
            justify-content: center;
            margin-top: var(--spacing-md);}        
        .spinner {
            width: 2rem;
            height: 2rem;
            border: 3px solid var(--light);
            border-top-color: var(--primary);
            border-radius: 50%;
            animation: spin 1s linear infinite;
        }
        
        .tag {
            display: inline-block;
            padding: var(--spacing-xs) var(--spacing-sm);
            background: var(--accent);
            border: var(--border-width) solid var(--text);
            box-shadow: var(--shadow);
            margin-right: var(--spacing-sm);
        }

        @keyframes spin {
            to { transform: rotate(360deg); }
        }
        
        /* Utilities */
        
        .text-center { text-align: center; }
        .mb-1 { margin-bottom: var(--spacing-sm); }
        .mb-2 { margin-bottom: var(--spacing-md); }
        .mb-3 { margin-bottom: var(--spacing-lg); }
        .mb-4 { margin-bottom: var(--spacing-xl); }
        .mb-5 { margin-bottom: var(--spacing-xxl); }
        .mt-1 { margin-top: var(--spacing-sm); }
        .mt-2 { margin-top: var(--spacing-md); }
        .mt-3 { margin-top: var(--spacing-lg); }
        .mt-4 { margin-top: var(--spacing-xl); }
        .mt-5 { margin-top: var(--spacing-xxl); }
        
        /* Alignment */
        


        /* Responsive adjustments */
        @media (max-width: 768px) {
            html { font-size: 14px; }            
            .container { padding: var(--spacing-sm); }
            .section { padding: var(--spacing-md); }
            .dialog { max-width: 90%; }
            .nav {
                flex-direction: column;
                align-items: center;  }  }









        /* Custom styles for the image converter */
        .preview-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 1rem;
            margin-top: 1rem;
        }

        .preview-item {
            position: relative;
            border: var(--border-width) solid var(--text);
            box-shadow: var(--shadow);
            padding: 0.5rem;
            background-color: var(--light);
        }

        .preview-image {
            width: 100px;
            height: 100px;
            object-fit: contain;
            margin: 0 auto 0.5rem;
            display: block;
            background-color: #f0f0f0;
        }

        .preview-info {
            font-size: 0.8rem;
            margin-bottom: 0.5rem;
        }

        .preview-info .file-name {
            font-weight: bold;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            max-width: 100%;
            display: block;
        }

        .preview-info .size-info {
            display: flex;
            justify-content: space-between;
        }

        .preview-info .new-size {
            color: var(--danger);
        }

        .preview-actions {
            display: flex;
            justify-content: space-between;
            margin-top: 0.5rem;
        }

        .action-button {
            background-color: var(--light);
            border: var(--border-width) solid var(--text);
            width: 30px;
            height: 30px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: var(--shadow);
        }

        .action-button:hover {
            background-color: var(--accent);
        }

        .action-button svg {
            width: 16px;
            height: 16px;
        }

        .download-all-container {
            text-align: center;
            margin-top: 1.5rem;
            display: none;
        }

        .overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.8);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            z-index: 1000;
            color: white;
            font-size: 1.5rem;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.3s, visibility 0.3s;
        }

        .overlay.active {
            opacity: 1;
            visibility: visible;
        }

      

        @media (max-width: 768px) {
            .preview-container {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (min-width: 769px) {
            .preview-container {
                grid-template-columns: repeat(5, 1fr);
            }
        }

        .hidden {
            display: none;
        }




.quality-control { background-color: rgba(255, 230, 109, 0.2); border: 2px dashed var(--text); padding: 5px; }
.quality-value { font-weight: bold; color: var(--retro-accent, #d32f2f); }

/* Retro Style for Range Input */
input[type="range"] { -webkit-appearance: none; width: 100%; height: 13px; background: #1a535c; border-radius: 5px; outline: none; opacity: 0.9; transition: opacity 0.2s; }
input[type="range"]:hover { opacity: 1; }
input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none; appearance: none; width: 25px; height: 25px; background: #ff6b6b; border: 2px solid var(--retro-border, #333); border-radius: 50%; cursor: pointer;}