:root {
            --primary: #4361ee;
            --primary-dark: #3a56d4;
            --primary-light: #e0e7ff;
            --secondary: #06d6a0;
            --dark: #212529;
            --light: #f8f9fa;
            --gray: #6c757d;
            --light-gray: #e9ecef;
            --danger: #ef476f;
            --warning: #ffd166;
            --border-radius: 12px;
            --shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s ease;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }

        .main-container {
            background-color: #bdc5e3;
            color: var(--dark);
            line-height: 1.6;
            min-height: 100vh;
            padding: 20px;
            /*background-image: url('../../assets/img/black-paper.png');*/
        }

        .container {
            width: 95%;
            margin: 0 auto;
        }

        .header-title {
            text-align: center;
            padding: 40px 20px;
        }

        h1 {
            font-size: 2.8rem;
            margin-bottom: 15px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            font-weight: 800;
            -webkit-text-stroke: 0.2px #f7f7f7;
        }

        .subtitle {
            font-size: 1.2rem;
            color: #3d3f40;
            max-width: 700px;
            margin: 0 auto 30px;
        }

        .subtitle2 {
            font-size: 1.2rem;
           
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            font-weight: 800;
            max-width: 700px;
            margin: 0 auto 30px;
            -webkit-text-stroke: 0.2px #0220ff;
        }

        .converter-container {
            background: white;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            padding: 40px;
            margin-bottom: 40px;
        }

        .converter-steps {
            display: flex;
            justify-content: space-between;
            margin-bottom: 30px;
            position: relative;
        }

        .converter-steps::before {
            content: '';
            position: absolute;
            top: 20px;
            left: 0;
            right: 0;
            height: 4px;
            background-color: var(--light-gray);
            z-index: 1;
        }

        .step {
            display: flex;
            flex-direction: column;
            align-items: center;
            position: relative;
            z-index: 2;
        }

        .step-number {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: var(--light-gray);
            color: var(--gray);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            margin-bottom: 10px;
            transition: var(--transition);
        }

        .step.active .step-number {
            background-color: var(--primary);
            color: white;
        }

        .step.completed .step-number {
            background-color: var(--secondary);
            color: white;
        }

        .step-label {
            font-size: 0.9rem;
            color: var(--gray);
            text-align: center;
        }

        .step.active .step-label {
            color: var(--primary);
            font-weight: 600;
        }

        .step.completed .step-label {
            color: var(--secondary);
        }

        .step-content {
            display: none;
        }

        .step-content.active {
            display: block;
            animation: fadeIn 0.5s ease;
        }

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

        /* Step 1: File upload */
        .upload-container {
            text-align: center;
            padding: 40px 20px;
            border: 2px dashed var(--light-gray);
            border-radius: var(--border-radius);
            transition: var(--transition);
            margin-bottom: 30px;
        }

        .upload-container:hover {
            border-color: var(--primary);
            background-color: var(--primary-light);
        }

        .upload-container.drag-over {
            border-color: var(--primary);
            background-color: var(--primary-light);
            transform: scale(1.01);
        }

        .upload-icon {
            font-size: 3rem;
            color: var(--primary);
            margin-bottom: 20px;
        }

        .upload-text {
            margin-bottom: 20px;
        }

        .upload-text h3 {
            margin-bottom: 10px;
            color: var(--dark);
        }

        .upload-text p {
            color: var(--gray);
        }

        .btn {
            background: var(--primary);
            color: white;
            border: none;
            padding: 12px 24px;
            border-radius: var(--border-radius);
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

        .btn:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }

        .btn i {
            margin-right: 8px;
        }

        .btn-secondary {
            background: white;
            color: var(--primary);
            border: 1px solid var(--primary);
        }

        .btn-secondary:hover {
            background: var(--primary-light);
        }

        .btn-disabled {
            background: var(--light-gray);
            color: var(--gray);
            cursor: not-allowed;
        }

        .btn-disabled:hover {
            transform: none;
            box-shadow: none;
        }

        /* Image preview */
        .preview-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
            gap: 20px;
            margin-bottom: 30px;
        }

        .image-card {
            background: white;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            position: relative;
        }

        .image-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow);
        }

        .image-preview {
            width: 100%;
            height: 150px;
            object-fit: cover;
        }

        .image-info {
            padding: 15px;
        }

        .image-name {
            font-size: 0.9rem;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            margin-bottom: 5px;
        }

        .image-size {
            font-size: 0.8rem;
            color: var(--gray);
        }

        .image-remove {
            position: absolute;
            top: 10px;
            right: 10px;
            background: var(--danger);
            color: white;
            width: 25px;
            height: 25px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            opacity: 0;
            transition: var(--transition);
        }

        .image-card:hover .image-remove {
            opacity: 1;
        }

        /* Step 2: Configuration */
        .settings-container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }

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

        .setting-group {
            margin-bottom: 20px;
        }

        .setting-group h4 {
            margin-bottom: 15px;
            color: var(--dark);
            display: flex;
            align-items: center;
        }

        .setting-group h4 i {
            margin-right: 10px;
            color: var(--primary);
        }

        .radio-group {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .radio-option {
            display: none;
        }

        .radio-option + label {
            padding: 8px 15px;
            border: 1px solid var(--light-gray);
            border-radius: var(--border-radius);
            cursor: pointer;
            transition: var(--transition);
        }

        .radio-option:checked + label {
            background: var(--primary);
            color: white;
            border-color: var(--primary);
        }

        .radio-option:not(:checked) + label:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        .slider-container {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .slider-value {
            min-width: 40px;
            text-align: center;
            font-weight: 600;
        }

        input[type="range"] {
            flex: 1;
            -webkit-appearance: none;
            height: 8px;
            border-radius: 4px;
            background: var(--light-gray);
            outline: none;
        }

        input[type="range"]::-webkit-slider-thumb {
            -webkit-appearance: none;
            appearance: none;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: var(--primary);
            cursor: pointer;
            transition: var(--transition);
        }

        input[type="range"]::-webkit-slider-thumb:hover {
            transform: scale(1.1);
        }

        .checkbox-group {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .checkbox-option {
            width: 18px;
            height: 18px;
            accent-color: var(--primary);
        }

        /* Step 3: Results */
        .results-container {
            text-align: center;
        }

        .results-icon {
            font-size: 4rem;
            color: var(--secondary);
            margin-bottom: 20px;
        }

        .results-info {
            background: var(--primary-light);
            padding: 20px;
            border-radius: var(--border-radius);
            margin-bottom: 30px;
        }

        .results-stats {
            display: flex;
            justify-content: space-around;
            margin-bottom: 20px;
        }

        .stat-item {
            text-align: center;
        }

        .stat-value {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 5px;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--gray);
        }

        .progress-container {
            margin-bottom: 30px;
        }

        .progress-bar {
            height: 10px;
            background: var(--light-gray);
            border-radius: 5px;
            overflow: hidden;
            margin-bottom: 10px;
        }

        .progress-fill {
            height: 100%;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            width: 0;
            transition: width 0.5s ease;
        }

        .progress-text {
            display: flex;
            justify-content: space-between;
            font-size: 0.9rem;
            color: var(--gray);
        }

        .download-btn {
            margin-top: 20px;
        }

        /* Navigation */
        .navigation {
            display: flex;
            justify-content: space-between;
            margin-top: 30px;
        }

        /* Notifications */
        .notification {
            position: fixed;
            top: 20px;
            right: 20px;
            padding: 15px 25px;
            background: var(--secondary);
            color: white;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            transform: translateX(150%);
            transition: transform 0.3s ease;
            z-index: 1000;
            display: flex;
            align-items: center;
        }

        .notification.show {
            transform: translateX(0);
        }

        .notification i {
            margin-right: 10px;
        }

        

        /* Responsive */
        @media (max-width: 768px) {
            h1 {
                font-size: 2.2rem;
            }

            .converter-container {
                padding: 20px;
            }

            .converter-steps {
                flex-direction: column;
                align-items: flex-start;
                gap: 20px;
            }

            .converter-steps::before {
                display: none;
            }

            .step {
                flex-direction: row;
                gap: 15px;
            }

            .step-number {
                margin-bottom: 0;
            }

            .results-stats {
                flex-direction: column;
                gap: 15px;
            }
        }

/* ===== ARTICLE SPECIFIC STYLES - NO BODY STYLES ===== */
#image-guide-article {
      width: 95%;
      margin: 0 auto;
      padding: 2rem 1.5rem 3rem 1.5rem;
      font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    }

    /* Hero Section */
    .image-guide-hero {
      text-align: center;
      margin-bottom: 2.5rem;
      padding: 2rem 1.5rem;
      background: linear-gradient(135deg, #4361ee 0%, #06d6a0 100%);
      border-radius: 32px;
      box-shadow: 0 12px 30px rgba(67, 97, 238, 0.3);
    }

    .image-guide-hero h2 {
      font-size: 2.6rem;
      font-weight: 800;
      color: white;
      margin-bottom: 1rem;
      letter-spacing: -0.02em;
      font-family: 'Playfair Display', serif;
    }

    .image-guide-hero .image-hero-sub {
      font-size: 1.2rem;
      color: rgba(255, 255, 255, 0.9);
      max-width: 720px;
      margin: 0 auto;
      line-height: 1.5;
    }

    .image-guide-meta {
      display: flex;
      justify-content: center;
      gap: 2rem;
      color: rgba(255, 255, 255, 0.8);
      font-weight: 500;
      margin-top: 1.2rem;
      flex-wrap: wrap;
    }

    .image-guide-meta span i {
      margin-right: 0.5rem;
    }

    /* Main Content */
    .image-main-content {
      background: white;
      border-radius: 28px;
      padding: 2rem 2rem 2.5rem 2rem;
      box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
      border: 1px solid rgba(67, 97, 238, 0.15);
    }

    .image-main-content h2 {
      font-size: 1.8rem;
      font-weight: 700;
      margin-top: 2rem;
      margin-bottom: 1rem;
      color: #4361ee;
      border-left: 5px solid #06d6a0;
      padding-left: 1rem;
      font-family: 'Playfair Display', serif;
    }

    .image-main-content h2:first-of-type {
      margin-top: 0;
    }

    .image-main-content h3 {
      font-size: 1.35rem;
      font-weight: 600;
      margin: 1.5rem 0 0.75rem 0;
      color: #06d6a0;
    }

    .image-main-content p {
      font-size: 1.05rem;
      color: #2d3748;
      margin-bottom: 1.2rem;
      line-height: 1.6;
    }

    .image-main-content ul, .image-main-content ol {
      margin: 1rem 0 1.2rem 1.8rem;
      color: #2d3748;
      line-height: 1.6;
    }

    .image-main-content li {
      margin-bottom: 0.5rem;
    }

    .image-highlight-box {
      background: linear-gradient(135deg, rgba(67, 97, 238, 0.08), rgba(6, 214, 160, 0.05));
      border-left: 6px solid #06d6a0;
      padding: 1.25rem 1.5rem;
      border-radius: 20px;
      margin: 1.75rem 0;
    }

    .image-pro-tip {
      background: rgba(6, 214, 160, 0.1);
      border-radius: 20px;
      padding: 1.2rem 1.5rem;
      margin: 1.5rem 0;
      display: flex;
      gap: 1rem;
      align-items: flex-start;
      border: 1px solid rgba(67, 97, 238, 0.3);
    }

    .image-pro-tip i {
      font-size: 1.8rem;
      color: #4361ee;
    }

    .image-stats-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 1.2rem;
      margin: 2rem 0;
    }

    .image-stat-card {
      background: #f5f7fa;
      border-radius: 20px;
      padding: 1.2rem;
      text-align: center;
      transition: all 0.2s;
      border: 1px solid rgba(67, 97, 238, 0.2);
    }

    .image-stat-card .stat-number {
      font-size: 2rem;
      font-weight: 800;
      color: #4361ee;
      margin-bottom: 0.25rem;
    }

    .image-quote-block {
      background: #f5f7fa;
      padding: 1.5rem;
      border-radius: 24px;
      text-align: center;
      font-style: italic;
      margin: 1.5rem 0;
      border: 1px solid rgba(67, 97, 238, 0.2);
    }

    .image-quote-block i {
      font-size: 2rem;
      color: #06d6a0;
      margin-bottom: 0.5rem;
      display: inline-block;
    }

    .image-table-wrapper {
      overflow-x: auto;
      margin: 1.5rem 0;
    }

    .image-formats-table {
      width: 100%;
      border-collapse: collapse;
      background: #f5f7fa;
      border-radius: 16px;
      overflow: hidden;
    }

    .image-formats-table th, .image-formats-table td {
      padding: 12px 16px;
      text-align: left;
      border-bottom: 1px solid rgba(67, 97, 238, 0.2);
    }

    .image-formats-table th {
      background: rgba(67, 97, 238, 0.1);
      font-weight: 600;
      color: #4361ee;
    }

    .image-formats-table tr:hover {
      background: rgba(6, 214, 160, 0.05);
    }

    .image-applications-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 1.2rem;
      margin: 1.5rem 0;
    }

    .image-application-card {
      background: #f5f7fa;
      border-radius: 16px;
      padding: 1.2rem;
      border: 1px solid rgba(67, 97, 238, 0.2);
      transition: all 0.2s;
    }

    .image-application-card:hover {
      transform: translateY(-3px);
      box-shadow: 0 8px 20px rgba(67, 97, 238, 0.1);
    }

    .image-application-title {
      font-weight: 700;
      color: #4361ee;
      margin-bottom: 0.5rem;
      font-size: 1.1rem;
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }

    .image-footer-note {
      margin-top: 2.5rem;
      text-align: center;
      font-size: 0.85rem;
      color: #718096;
      border-top: 1px solid #e2e8f0;
      padding-top: 2rem;
    }

    @media (max-width: 768px) {
      .image-guide-hero h2 {
        font-size: 2rem;
      }
      .image-main-content {
        padding: 1.5rem;
      }
      #image-guide-article {
        padding: 1rem;
      }
    }