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

    :root {
        --primary-green: #3DCD58;
        --dark-green: #2EB049;
        --light-green: #7ED957;
        --dark-gray: #333333;
        --light-gray: #F5F5F5;
        --white: #FFFFFF;
        --border-radius: 4px;
        --transition-speed: 0.3s;
        --box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
        --text-color: #333333;
        --secondary-text: #666666;
        --card-bg: #FFFFFF;
        --hover-bg: #F0F0F0;
        --color-1: #4361EE;
        --color-2: #3A0CA3;
        --color-3: #7209B7;
        --color-4: #F72585;
        --color-5: #4CC9F0;
        --color-6: #4895EF;
        --color-7: #560BAD;
        --color-8: #B5179E;
        --color-9: #F15BB5;
        --color-10: #06D6A0;
        --chart-text-color: #1E88E5;
        --chart-grid-color: rgba(30, 136, 229, 0.15);
    }

    .dark-mode {
        --primary-green: #4DE369;
        --dark-green: #3CC257;
        --light-green: #8FE478;
        --dark-gray: #F5F5F5;
        --light-gray: #2A2A2A;
        --white: #1A1A1A;
        --box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
        --text-color: #F5F5F5;
        --secondary-text: #CCCCCC;
        --card-bg: #2D2D2D;
        --hover-bg: #3A3A3A;
        --chart-text-color: #90CAF9;
        --chart-grid-color: rgba(144, 202, 249, 0.2);
    }

    body {
        background-color: var(--light-gray);
        color: var(--dark-gray);
        display: flex;
        flex-direction: column;
        min-height: 100vh;
        transition: background-color var(--transition-speed), color var(--transition-speed);
    }

    .header {
        background-color: var(--white);
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        position: sticky;
        top: 0;
        z-index: 100;
        width: 100%;
    }

    .nav-container {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 15px 30px;
        max-width: 1400px;
        margin: 0 auto;
    }

    .logo {
        display: flex;
        align-items: center;
    }

    .logo img {
        height: 30px;
        margin-right: 15px;
    }

    .logo-text {
        font-weight: 600;
        font-size: 1.2rem;
        color: var (--dark-gray);
        transition: color var(--transition-speed);
    }

    .nav-links {
        display: flex;
        gap: 25px;
    }

    .nav-links a {
        color: var(--dark-gray);
        text-decoration: none;
        font-weight: 500;
        transition: color 0.3s;
        padding: 5px 0;
        border-bottom: 2px solid transparent;
    }

    .nav-links a:hover,
    .nav-links a.active {
        color: var(--primary-green);
        border-bottom: 2px solid var(--primary-green);
    }

    .theme-toggle {
        background: none;
        border: none;
        color: var(--dark-gray);
        font-size: 1.2rem;
        cursor: pointer;
        margin-left: 20px;
        transition: color var(--transition-speed);
        display: flex;
        align-items: center;
        justify-content: center;
        width: 36px;
        height: 36px;
        border-radius: 50%;
    }

    .theme-toggle:hover {
        background-color: var(--light-gray);
    }

    .container {
        max-width: 1400px;
        margin: 0 auto;
        padding: 30px;
        width: 100%;
    }

    .dashboard-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 30px;
    }

    .header-content {
        display: flex;
        justify-content: space-between;
        align-items: center;
        width: 100%;
        flex-wrap: wrap;
        gap: 15px;
    }

    .page-title {
        color: var(--dark-gray);
        font-size: 1.8rem;
        font-weight: 600;
        margin: 0;
        flex: 1;
        min-width: 200px;
    }

    /* Upload button improvements */
    .upload-text-mobile {
        display: none;
    }

    .upload-text {
        display: inline;
    }

    /* Filter responsive text */
    .filter-label-mobile,
    .filter-text-mobile {
        display: none;
    }

    .filter-label-full,
    .filter-text-full {
        display: inline;
    }

    .filter-controls {
        background-color: var(--white);
        border-radius: var(--border-radius);
        padding: 15px 20px;
        margin-bottom: 25px;
        box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
        display: flex;
        justify-content: space-between;
        align-items: center;
        flex-wrap: wrap;
        gap: 15px;
    }

    .filter-group {
        display: flex;
        align-items: center;
        gap: 15px;
        flex-wrap: wrap;
    }

    .filter-label {
        font-weight: 500;
        color: var(--dark-gray);
        white-space: nowrap;
    }

    .filter-buttons {
        display: flex;
        gap: 8px;
        flex-wrap: wrap;
    }

    .filter-btn {
        background-color: var(--light-gray);
        border: none;
        padding: 8px 12px;
        border-radius: 20px;
        cursor: pointer;
        transition: all 0.3s;
        font-weight: 500;
        font-size: 0.9rem;
        white-space: nowrap;
        min-width: auto;
    }

    .filter-btn:hover {
        background-color: #e0e0e0;
    }

    .filter-btn.active {
        background-color: var(--primary-green);
        color: var(--white);
    }

    .view-controls {
        display: flex;
        gap: 10px;
    }

    .view-btn {
        background-color: var(--light-gray);
        border: none;
        padding: 8px;
        border-radius: var(--border-radius);
        cursor: pointer;
        transition: all 0.3s;
    }

    .view-btn:hover {
        background-color: #e0e0e0;
    }

    .view-btn.active {
        background-color: var (--primary-green);
        color: var(--white);
    }

    .gallery {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
        gap: 25px;
        margin-bottom: 30px;
    }

    .gallery-item {
        background-color: var(--card-bg);
        border-radius: var(--border-radius);
        overflow: hidden;
        box-shadow: var(--box-shadow);
        transition: transform 0.3s, box-shadow 0.3s;
        position: relative;
        height: 100%;
        display: flex;
        flex-direction: column;
        max-height: 460px;
    }

    .gallery-item:hover {
        transform: translateY(-5px);
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
    }

    .chart-image {
        width: 100%;
        aspect-ratio: 16/10;
        object-fit: cover;
        cursor: pointer;
        transition: transform 0.3s ease;
    }

    .gallery-item:hover .chart-image {
        transform: scale(1.05);
    }

    .chart-preview-overlay {
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background-color: rgba(0, 0, 0, 0.7);
        display: flex;
        align-items: center;
        justify-content: center;
        opacity: 0;
        transition: opacity 0.3s;
        pointer-events: none;
    }

    .gallery-item:hover .chart-preview-overlay {
        opacity: 1;
    }

    .preview-button {
        background-color: var(--primary-green);
        color: white;
        border: none;
        padding: 10px 20px;
        border-radius: var(--border-radius);
        font-weight: 500;
        cursor: pointer;
        transform: translateY(20px);
        transition: transform 0.3s, background-color 0.2s;
    }

    .gallery-item:hover .preview-button {
        transform: translateY(0);
    }

    .preview-button:hover {
        background-color: var(--dark-green);
    }

    .chart-badge {
        position: absolute;
        top: 10px;
        right: 10px;
        background-color: var(--primary-green);
        color: white;
        padding: 3px 8px;
        border-radius: 12px;
        font-size: 0.8rem;
        font-weight: 500;
        z-index: 5;
    }

    .chart-info {
        padding: 15px;
        flex-grow: 1;
        display: flex;
        flex-direction: column;
        max-height: 220px;
        overflow-y: auto;
    }

    .chart-title {
        font-weight: 600;
        margin-bottom: 10px;
        color: var(--text-color);
    }

    .chart-desc {
        font-size: 0.9rem;
        color: var(--secondary-text);
        margin-bottom: 15px;
        line-height: 1.4;
        flex-grow: 1;
    }

    .chart-actions {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .view-options {
        display: flex;
        gap: 10px;
    }

    .view-option {
        padding: 5px;
        background-color: var(--light-gray);
        border: none;
        border-radius: var (--border-radius);
        cursor: pointer;
        transition: all 0.3s;
    }

    .view-option:hover {
        background-color: #e0e0e0;
    }

    .view-option.active {
        background-color: var(--primary-green);
        color: var(--white);
    }

    .chart-date {
        font-size: 0.8rem;
        color: #777;
    }

    .about-developer {
        background: linear-gradient(135deg, var(--card-bg) 0%, var(--hover-bg) 100%);
        border-radius: 12px;
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
        margin-top: 40px;
        padding: 40px;
        display: flex;
        gap: 40px;
        align-items: flex-start;
        transition: all 0.3s ease;
        border: 1px solid rgba(61, 205, 88, 0.1);
    }

    .about-developer:hover {
        box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
        transform: translateY(-2px);
    }

    .developer-avatar-container {
        position: relative;
        flex-shrink: 0;
    }

    .developer-photo {
        width: 140px;
        height: 140px;
        border-radius: 50%;
        object-fit: cover;
        border: 4px solid var(--primary-green);
        box-shadow: 0 4px 12px rgba(61, 205, 88, 0.3);
        transition: all 0.3s ease;
    }

    .developer-photo:hover {
        transform: scale(1.05);
        box-shadow: 0 6px 16px rgba(61, 205, 88, 0.4);
    }

    .avatar-overlay {
        position: absolute;
        bottom: 0;
        right: 0;
        background: var(--primary-green);
        width: 40px;
        height: 40px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        color: white;
        font-size: 1.2rem;
        border: 3px solid var(--card-bg);
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    }

    .developer-info {
        flex: 1;
        display: flex;
        flex-direction: column;
        gap: 25px;
    }

    .developer-header {
        border-bottom: 2px solid var(--primary-green);
        padding-bottom: 15px;
    }

    .developer-name {
        font-size: 1.8rem;
        font-weight: 700;
        color: var(--text-color);
        margin-bottom: 8px;
        letter-spacing: -0.5px;
    }

    .developer-role {
        color: var(--primary-green);
        font-weight: 600;
        font-size: 1.1rem;
        margin-bottom: 4px;
    }

    .developer-subtitle {
        color: var(--secondary-text);
        font-size: 0.95rem;
        font-style: italic;
    }

    .developer-details {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 25px;
    }

    .detail-group {
        background-color: var(--light-gray);
        padding: 20px;
        border-radius: 8px;
        border-left: 4px solid var(--primary-green);
        transition: all 0.3s ease;
    }

    .detail-group:hover {
        background-color: var(--hover-bg);
        transform: translateX(5px);
    }

    .group-title {
        font-size: 1rem;
        font-weight: 600;
        color: var(--primary-green);
        margin-bottom: 12px;
        text-transform: uppercase;
        letter-spacing: 0.5px;
    }

    .detail-item {
        display: flex;
        align-items: center;
        margin-bottom: 10px;
        font-size: 0.95rem;
        color: var(--text-color);
    }

    .detail-item:last-child {
        margin-bottom: 0;
    }

    .detail-item i {
        color: var(--primary-green);
        width: 24px;
        margin-right: 12px;
        font-size: 1.1rem;
    }

    .social-links {
        display: flex;
        gap: 15px;
        flex-wrap: wrap;
    }

    .social-link {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 10px 20px;
        border-radius: 25px;
        background-color: var(--light-gray);
        color: var(--dark-gray);
        transition: all 0.3s ease;
        text-decoration: none;
        font-weight: 500;
        font-size: 0.9rem;
        border: 2px solid transparent;
    }

    .social-link:hover {
        background-color: var(--primary-green);
        color: var(--white);
        transform: translateY(-3px);
        box-shadow: 0 6px 12px rgba(61, 205, 88, 0.3);
        border-color: var(--dark-green);
    }

    .social-link i {
        font-size: 1.2rem;
    }

    .social-text {
        font-weight: 500;
    }

    .modal {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background-color: rgba(0, 0, 0, 0.85);
        z-index: 1450;
        align-items: center;
        justify-content: center;
        padding: 10px;
    }

    .modal-container {
        position: relative;
        width: 90%;
        max-width: 1000px;
        max-height: 90vh;
        background-color: var(--card-bg);
        border-radius: var(--border-radius);
        overflow: hidden;
        box-shadow: var(--box-shadow);
        transition: background-color var(--transition-speed);
        display: flex;
        flex-direction: column;
    }

    .modal-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 15px 20px;
        background-color: var(--primary-green);
        color: var(--white);
    }

    .modal-title {
        font-size: 1.2rem;
        font-weight: 600;
    }

    .close-modal {
        background: none;
        border: none;
        color: var(--white);
        font-size: 1.5rem;
        cursor: pointer;
        transition: opacity 0.3s;
    }

    .close-modal:hover {
        opacity: 0.7;
    }

    .modal-body {
        padding: 20px;
        display: flex;
        flex-direction: column;
        gap: 20px;
        overflow-y: auto;
        flex: 1;
        min-height: 0;
    }

    .modal-image {
        width: 100%;
        max-height: 60vh;
        object-fit: contain;
        border-radius: var(--border-radius);
    }

    .chart-options {
        display: flex;
        gap: 10px;
        flex-wrap: wrap;
    }

    .chart-type-btn {
        padding: 8px 15px;
        background-color: var(--light-gray);
        border: none;
        border-radius: 20px;
        cursor: pointer;
        transition: all 0.3s;
        font-size: 0.9rem;
        font-weight: 500;
    }

    .chart-type-btn:hover {
        background-color: #e0e0e0;
    }

    .chart-type-btn.active {
        background-color: var(--primary-green);
        color: var(--white);
    }

    .modal-actions {
        display: flex;
        justify-content: space-between;
        padding: 15px 20px;
        background-color: var(--light-gray);
        border-top: 1px solid #e0e0e0;
    }

    .action-buttons {
        display: flex;
        gap: 10px;
    }

    .action-btn {
        padding: 8px 16px;
        background-color: var(--primary-green);
        color: var(--white);
        border: none;
        border-radius: var(--border-radius);
        cursor: pointer;
        transition: all 0.3s;
        display: flex;
        align-items: center;
        gap: 5px;
    }

    .action-btn:hover {
        background-color: var(--dark-green);
    }

    .secondary-btn {
        background-color: var (--white);
        color: var (--dark-gray);
        border: 1px solid #ddd;
    }

    .secondary-btn:hover {
        background-color: #f5f5f5;
    }

    footer {
        background-color: var(--dark-gray);
        color: var(--white);
        padding: 30px;
        margin-top: auto;
    }

    .footer-container {
        max-width: 1400px;
        margin: 0 auto;
    }

    .footer-content {
        display: flex;
        justify-content: space-between;
        align-items: center;
        flex-wrap: wrap;
        gap: 20px;
    }

    .footer-logo {
        display: flex;
        align-items: center;
    }

    .footer-logo img {
        height: 25px;
        margin-right: 10px;
    }

    .copyright {
        color: #bbb;
        font-size: 0.9rem;
    }

    .spinner-overlay {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background-color: rgba(0, 0, 0, 0.7);
        display: flex;
        align-items: center;
        justify-content: center;
        z-index: 2000;
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.3s;
    }

    .spinner-overlay.active {
        opacity: 1;
        pointer-events: all;
    }

    .spinner {
        width: 50px;
        height: 50px;
        border: 5px solid rgba(255, 255, 255, 0.3);
        border-radius: 50%;
        border-top-color: var(--primary-green);
        animation: spin 1s ease-in-out infinite;
    }

    @keyframes spin {
        to {
            transform: rotate(360deg);
        }
    }

    .toast {
        position: fixed;
        bottom: 30px;
        right: 30px;
        background-color: var(--primary-green);
        color: white;
        padding: 12px 25px;
        border-radius: var(--border-radius);
        box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
        transform: translateY(100px);
        opacity: 0;
        transition: transform 0.3s, opacity 0.3s;
        z-index: 2000;
    }

    .toast.show {
        transform: translateY(0);
        opacity: 1;
    }

    /* Missing CSS classes for better mobile stats display */
    .stats-summary {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 15px;
        margin-top: 20px;
        padding: 15px;
        background-color: var(--card-bg);
        border-radius: var(--border-radius);
        box-shadow: var(--box-shadow);
    }

    .stat-item {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 8px 0;
        border-bottom: 1px solid var(--chart-grid-color);
    }

    .stat-item:last-child {
        border-bottom: none;
    }

    .stat-label {
        font-weight: 500;
        color: var(--secondary-text);
        margin-right: 10px;
        flex: 1;
    }

    .stat-value {
        font-weight: 600;
        color: var(--text-color);
    }

    .stat-value.positive {
        color: var(--primary-green);
    }

    .stat-value.negative {
        color: var(--color-4);
    }

    /* Dashboard summary improvements */
    .summary-panel {
        background-color: var(--card-bg);
        border-radius: var(--border-radius);
        padding: 20px;
        margin-bottom: 25px;
        box-shadow: var(--box-shadow);
    }

    .summary-panel h3 {
        margin-top: 0;
        margin-bottom: 15px;
        color: var(--text-color);
    }

    .summary-panel > div {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        gap: 15px;
    }

    .stat-card {
        padding: 12px;
        border-radius: 8px;
        color: white;
        text-align: center;
    }

    .stat-card > div:first-child {
        font-size: 0.9rem;
        margin-bottom: 5px;
        opacity: 0.9;
    }

    .stat-card > div:last-child {
        font-size: 1.5rem;
        font-weight: 600;
    }

    @media (max-width: 960px) {
        .gallery {
            grid-template-columns: repeat(2, 1fr);
        }

        .nav-links {
            gap: 15px;
        }

        .about-developer {
            flex-direction: column;
            align-items: center;
            text-align: center;
        }

        .social-links {
            justify-content: center;
        }

        .detail-item {
            justify-content: center;
        }
    }

    @media (max-width: 600px) {
        .gallery {
            grid-template-columns: 1fr;
        }

        .nav-container {
            flex-direction: column;
            gap: 15px;
        }

        .header-content {
            flex-direction: column;
            align-items: stretch;
            gap: 15px;
        }

        .page-title {
            font-size: 1.5rem;
            text-align: center;
        }

        .filter-controls {
            flex-direction: column;
            align-items: stretch;
            padding: 12px;
            gap: 12px;
        }

        .filter-group {
            flex-direction: column;
            align-items: stretch;
            gap: 10px;
        }

        .filter-buttons {
            justify-content: center;
            gap: 6px;
        }

        .filter-btn {
            padding: 8px 10px;
            font-size: 0.8rem;
            min-width: 60px;
        }

        /* Show mobile text, hide desktop text */
        .filter-label-full,
        .filter-text-full,
        .upload-text {
            display: none;
        }

        .filter-label-mobile,
        .filter-text-mobile,
        .upload-text-mobile {
            display: inline;
        }

        .chart-options {
            justify-content: center;
        }

        .modal-actions {
            flex-direction: column;
            gap: 10px;
        }

        .action-buttons {
            justify-content: center;
            width: 100%;
        }

        .filter-buttons {
            overflow-x: auto;
            white-space: nowrap;
            padding-bottom: 5px;
            width: 100%;
        }

        .toast {
            left: 20px;
            right: 20px;
            text-align: center;
        }

        /* Improve stats layout for mobile */
        .stats-summary {
            grid-template-columns: 1fr;
            gap: 10px;
        }

        .stat-item {
            flex-direction: column;
            align-items: flex-start;
            gap: 4px;
        }

        .stat-label {
            font-size: 0.8rem;
            font-weight: 600;
        }

        .stat-value {
            font-size: 1rem;
        }

        /* Better modal experience for mobile */
        .modal-container {
            margin: 10px;
            max-height: calc(100vh - 20px);
            overflow-y: auto;
        }

        .modal-body {
            padding: 15px;
        }

        .chart-container {
            height: 250px;
        }
    }

    .chart-container {
        position: relative;
        width: 100%;
        height: 400px;
        max-height: 60vh;
        margin-bottom: 20px;
    }

    .file-upload {
        display: flex;
        align-items: center;
        gap: 10px;
        flex-shrink: 0;
    }

    .file-upload-btn {
        position: relative;
        background: linear-gradient(135deg, var(--primary-green), var(--dark-green));
        color: white;
        border: none;
        padding: 10px 20px;
        border-radius: var(--border-radius);
        cursor: pointer;
        font-weight: 500;
        transition: all 0.3s;
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 0.9rem;
        white-space: nowrap;
        overflow: hidden;
    }

    .file-upload-btn:hover {
        background: linear-gradient(135deg, var(--dark-green), var(--primary-green));
        transform: translateY(-1px);
    }

    .file-upload-btn input[type="file"] {
        position: absolute;
        top: 0;
        right: 0;
        min-width: 100%;
        min-height: 100%;
        opacity: 0;
        cursor: pointer;
    }

    .file-name {
        font-size: 0.9rem;
        color: var(--secondary-text);
        margin-left: 10px;
        font-style: italic;
        max-width: 200px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .data-options {
        background-color: var(--white);
        border-radius: var(--border-radius);
        padding: 15px;
        margin-bottom: 20px;
        box-shadow: var(--box-shadow);
    }

    .data-options-title {
        font-weight: 600;
        margin-bottom: 10px;
        display: flex;
        align-items: center;
        justify-content: space-between;
    }

    .data-options-controls {
        display: flex;
        flex-wrap: wrap;
        gap: 15px;
        margin-top: 10px;
    }

    .data-select {
        padding: 8px 12px;
        border: 1px solid #ddd;
        border-radius: var(--border-radius);
        background-color: var(--white);
        color: #1E88E5;
        min-width: 150px;
        transition: color var(--transition-speed), background-color var(--transition-speed);
    }

    .data-table-container {
        margin-top: 20px;
        overflow-x: auto;
        max-height: 300px;
        overflow-y: auto;
    }

    .data-table {
        width: 100%;
        border-collapse: collapse;
    }

    .data-table th,
    .data-table td {
        padding: 8px 12px;
        text-align: left;
        border: 1px solid #ddd;
    }

    .data-table th {
        background-color: var(--light-gray);
        position: sticky;
        top: 0;
    }

    .data-table tr:nth-child(even) {
        background-color: rgba(0, 0, 0, 0.02);
    }

    .chart-type-selector {
        margin-bottom: 15px;
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
    }

    .chart-actions-row {
        display: flex;
        justify-content: space-between;
        margin-bottom: 15px;
        flex-wrap: wrap;
        gap: 10px;
    }

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

    .chart-image-container {
        position: relative;
        width: 100%;
        height: 220px;
        overflow: hidden;
    }

    .chart-image {
        width: 100%;
        height: 100%;
        object-fit: contain;
    }

    .gallery-item {
        display: flex;
        flex-direction: column;
        max-height: 460px;
    }

    .chart-info {
        max-height: 220px;
        overflow-y: auto;
    }

    .stats-summary {
        background-color: var(--light-gray);
        border-radius: 4px;
        padding: 8px 12px;
        margin-bottom: 15px;
        font-size: 0.9rem;
    }

    .stat-item {
        display: flex;
        justify-content: space-between;
        margin-bottom: 4px;
    }

    .stat-label {
        font-weight: 500;
    }

    .stat-value {
        font-weight: 600;
    }

    .section-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 10px;
        cursor: pointer;
    }

    .section-header h3 {
        margin: 0;
    }

    .section-toggle {
        transition: transform 0.3s;
    }

    .section-toggle.collapsed {
        transform: rotate(-90deg);
    }

    .section-content {
        transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), 
                    opacity 0.3s ease, 
                    padding 0.4s ease;
        max-height: 0;
        opacity: 0;
        overflow: hidden;
        min-height: auto;
        padding: 0 20px;
        border: none;
        border-radius: 0 0 var(--border-radius) var(--border-radius);
        background-color: var(--card-bg);
    }

    .section-content:not(.collapsed) {
        max-height: 2000px;
        opacity: 1;
        padding: 20px;
        border: 1px solid var(--hover-bg);
        border-top: none;
    }

    .section-content.expanded {
        max-height: none;
        overflow: visible;
    }

    .section-content.collapsed {
        max-height: 0;
        opacity: 0;
        overflow: hidden;
        padding-top: 0;
        padding-bottom: 0;
        border: none;
    }

    .subject-selector {
        background-color: var(--hover-bg);
        padding: 15px;
        border-radius: var(--border-radius);
        margin-top: 20px;
        border: 1px solid rgba(128, 128, 128, 0.2);
    }

    .subject-selector-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 15px;
    }

    .subject-selector-header span {
        font-weight: 600;
        color: var(--text-color);
        font-size: 1rem;
    }

    .subject-selector-header span {
        font-weight: 600;
        color: var(--text-color);
        font-size: 1.1rem;
    }

    #subjectCheckboxes {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
        gap: 12px;
        max-height: 150px;
        overflow-y: auto;
        padding-right: 5px;
    }

    #subjectCheckboxes>div {
        display: flex;
        align-items: center;
        background-color: var(--card-bg);
        padding: 6px 10px;
        border-radius: var(--border-radius);
        border: 1px solid transparent;
        transition: border-color 0.2s, background-color 0.2s;
        cursor: pointer;
    }

    #subjectCheckboxes>div:hover {
        border-color: var(--primary-green);
        background-color: var(--hover-bg);
    }

    #subjectCheckboxes input[type="checkbox"] {
        margin-right: 8px;
        cursor: pointer;
        accent-color: var(--primary-green);
        width: 16px;
        height: 16px;
    }

    #subjectCheckboxes label {
        font-size: 0.9rem;
        color: var(--secondary-text);
        cursor: pointer;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .section-header {
        background-color: var(--hover-bg);
        padding: 12px 18px;
        border-radius: var(--border-radius);
        margin-bottom: 0;
        border: 1px solid rgba(128, 128, 128, 0.1);
        transition: background-color 0.2s;
        cursor: pointer;
        user-select: none;
    }

    .section-header:hover {
        background-color: var(--primary-green);
    }

    .section-header:hover h3,
    .section-header:hover .section-toggle {
        color: var(--white);
    }

    .section-header h3 {
        color: var(--text-color);
        font-weight: 600;
        font-size: 1.1rem;
        transition: color 0.2s;
    }

    .section-toggle {
        color: var(--primary-green);
        font-size: 1.1rem;
        transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), color 0.2s;
        will-change: transform;
    }

    .section-toggle.collapsed {
        transform: rotate(-90deg);
    }

    .student-chart-section,
    .subject-chart-section {
        padding: 0;
        background-color: transparent;
        box-shadow: none;
        margin-top: 25px;
        min-height: auto;
        overflow: hidden;
    }

    .subject-chart-section .section-content,
    .student-chart-section .section-content {
        min-height: auto;
        overflow: hidden;
    }

    /* Stats Summary General Styling */
    .stats-summary {
        margin-top: 20px;
        padding: 20px;
        background-color: var(--card-bg);
        border-radius: var(--border-radius);
        border: 1px solid var(--hover-bg);
        box-shadow: var(--box-shadow);
        overflow: visible;
        min-height: auto;
        transition: opacity 0.3s ease;
    }

    .section-content.collapsed .stats-summary {
        opacity: 0;
        pointer-events: none;
    }

    .stats-summary h4 {
        margin-bottom: 15px;
        font-size: 1.1rem;
        color: var(--text-color);
        border-bottom: 1px solid var(--hover-bg);
        padding-bottom: 8px;
    }

    .stat-item {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 10px 0;
        margin-bottom: 8px;
        border-bottom: 1px solid var(--hover-bg);
    }

    .stat-item:last-child {
        border-bottom: none;
        margin-bottom: 0;
    }

    .stat-label {
        font-size: 0.9rem;
        font-weight: 500;
        color: var(--secondary-text);
    }

    .stat-value {
        font-size: 0.95rem;
        font-weight: 600;
        color: var(--primary-green);
    }

    .stat-value.positive {
        color: #4CAF50;
    }

    .stat-value.negative {
        color: #f44336;
    }

    .subject-selector {
        background-color: var(--card-bg);
        padding: 20px;
        border-radius: var(--border-radius);
        margin-top: 25px;
        border: 1px solid var(--hover-bg);
        box-shadow: var(--box-shadow);
    }

    .subject-selector-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 18px;
        padding-bottom: 10px;
        border-bottom: 1px solid var(--hover-bg);
    }

    .subject-selector-header .action-buttons {
        display: flex;
        gap: 10px;
    }

    .subject-selector-header .action-btn.secondary-btn {
        padding: 6px 12px;
        font-size: 0.85rem;
        background-color: var(--light-gray);
        color: var(--secondary-text);
        border: 1px solid transparent;
    }

    .subject-selector-header .action-btn.secondary-btn:hover {
        background-color: var(--hover-bg);
        border-color: var(--primary-green);
        color: var(--primary-green);
    }

    #subjectCheckboxes {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        max-height: 160px;
        overflow-y: auto;
        padding: 5px;
    }

    #subjectCheckboxes>div {
        display: flex;
        align-items: center;
        background-color: var(--light-gray);
        padding: 8px 12px;
        border-radius: 15px;
        border: 1px solid transparent;
        transition: border-color 0.2s, background-color 0.2s, color 0.2s;
        cursor: pointer;
        flex-shrink: 0;
    }

    #subjectCheckboxes>div:hover {
        border-color: var(--primary-green);
        background-color: var(--hover-bg);
    }

    #subjectCheckboxes input[type="checkbox"] {
        margin-right: 8px;
        cursor: pointer;
        accent-color: var(--primary-green);
        width: 15px;
        height: 15px;
        flex-shrink: 0;
    }

    #subjectCheckboxes label {
        font-size: 0.9rem;
        color: var(--secondary-text);
        cursor: pointer;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        transition: color 0.2s;
    }

    #subjectCheckboxes>div:hover label {
        color: var(--text-color);
    }

    #subjectCheckboxes::-webkit-scrollbar {
        width: 6px;
    }

    #subjectCheckboxes::-webkit-scrollbar-track {
        background: transparent;
    }

    #subjectCheckboxes::-webkit-scrollbar-thumb {
        background-color: var(--secondary-text);
        border-radius: 10px;
        border: 2px solid var(--light-gray);
    }

    .analysis-content {
        display: flex;
        flex-wrap: wrap;
        gap: 20px;
        margin-top: 15px;
    }

    .stats-report {
        background-color: var(--card-bg);
        padding: 15px 20px;
        border-radius: 8px;
        box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
        border: 1px solid var(--border-color);
        flex: 1;
        min-width: 250px;
        color: var(--text-color);
    }

    .stats-report h4 {
        margin-top: 0;
        margin-bottom: 15px;
        color: var(--primary-color);
        border-bottom: 1px solid var(--border-color);
        padding-bottom: 5px;
    }

    .stats-report h5 {
        margin-top: 10px;
        margin-bottom: 5px;
        color: var (--secondary-text);
    }

    .stats-report p,
    #gradeCountsDisplay span {
        margin-bottom: 8px;
        font-size: 0.95em;
    }

    .stats-report strong {
        color: var(--secondary-text);
        margin-right: 5px;
    }

    #gradeCountsDisplay span {
        display: inline-block;
        margin-right: 10px;
        background-color: var(--hover-bg);
        padding: 2px 6px;
        border-radius: 4px;
        font-size: 0.9em;
    }

    .chart-container.medium {
        height: 350px;
        flex: 1.5;
        min-width: 300px;
    }

    /* Add this to your existing style section */
    .nav-links a#outputFolderLink {
        display: flex;
        align-items: center;
        gap: 5px;
        color: var(--primary-green);
        font-weight: 500;
        transition: color 0.3s;
    }

    .nav-links a#outputFolderLink:hover {
        color: var(--dark-green);
    }

    .nav-links a#outputFolderLink i {
        font-size: 0.9rem;
    }

    @media (max-width: 480px) {
        .container {
            padding: 15px;
        }

        .dashboard-header {
            flex-direction: column;
            gap: 15px;
            align-items: flex-start;
        }

        .page-title {
            font-size: 1.4rem;
            text-align: center;
            width: 100%;
        }

        .nav-container {
            padding: 10px 15px;
        }

        .nav-links {
            flex-wrap: wrap;
            justify-content: center;
        }

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

        .gallery-item {
            min-width: 100%;
        }

        .chart-container {
            height: 250px;
        }

        .modal-container {
            width: 95%;
            height: 90vh;
            margin: 5vh auto;
        }

        .modal-header {
            padding: 12px 15px;
            position: sticky;
            top: 0;
            z-index: 10;
        }

        .modal-title {
            font-size: 1rem;
        }

        .modal-body {
            padding: 15px;
            height: calc(90vh - 120px);
        }

        .modal-actions {
            padding: 10px 15px;
            position: sticky;
            bottom: 0;
            background-color: var(--card-bg);
            border-top: 1px solid var(--chart-grid-color);
        }

        .data-options-controls {
            flex-direction: column;
        }

        .data-select {
            width: 100%;
        }

        .chart-options-group {
            flex-direction: column;
            width: 100%;
        }

        .action-buttons {
            flex-direction: column;
            width: 100%;
        }

        .action-btn {
            width: 100%;
            justify-content: center;
            padding: 12px;
            font-size: 0.9rem;
        }

        .stats-summary {
            padding: 10px;
            margin: 10px 0;
        }

        /* Fix stats sections for mobile */
        .stats-report {
            min-width: 100%;
            margin-bottom: 15px;
            padding: 12px;
            font-size: 0.9rem;
        }

        .stats-report h4 {
            font-size: 1rem;
            margin-bottom: 10px;
        }

        .stats-report h5 {
            font-size: 0.9rem;
            margin-top: 8px;
            margin-bottom: 4px;
        }

        .stats-report p,
        #gradeCountsDisplay span {
            font-size: 0.85rem;
            margin-bottom: 6px;
            line-height: 1.4;
            word-wrap: break-word;
        }

        /* Subject statistics mobile improvements */
        .subject-chart-section .section-content,
        .student-chart-section .section-content {
            padding: 15px;
            max-height: 2500px !important;
            overflow: hidden !important;
        }

        .subject-chart-section .section-content.collapsed,
        .student-chart-section .section-content.collapsed {
            max-height: 0 !important;
            padding-top: 0 !important;
            padding-bottom: 0 !important;
            overflow: hidden !important;
        }

        .subject-chart-section,
        .student-chart-section {
            margin-top: 20px;
            padding: 0;
            overflow: hidden;
        }

        .section-header h3 {
            font-size: 1.1rem;
        }

        /* Analysis content mobile layout */
        .analysis-content {
            flex-direction: column;
            gap: 15px;
        }

        /* Better mobile select styling */
        .data-select {
            padding: 8px;
            font-size: 0.9rem;
        }

        /* Mobile file upload improvements */
        .file-upload {
            width: 100%;
            justify-content: center;
        }

        .file-upload-btn {
            padding: 10px 16px;
            font-size: 0.9rem;
        }

        .file-name {
            font-size: 0.8rem;
            text-align: center;
            margin-top: 5px;
        }

        /* Dashboard summary cards mobile */
        #dashboardSummary > div {
            grid-template-columns: 1fr 1fr;
            gap: 10px;
        }

        .stat-card {
            padding: 10px;
        }

        .stat-card > div:first-child {
            font-size: 0.8rem;
        }

        .stat-card > div:last-child {
            font-size: 1.2rem;
        }
    }

        .subject-selector {
            padding: 10px;
        }

        #subjectCheckboxes {
            grid-template-columns: 1fr;
        }

        .section-header {
            padding: 10px;
        }

        .section-content {
            padding: 15px;
            max-height: 3000px !important;
            overflow: hidden !important;
            min-height: auto !important;
        }

        .section-content.collapsed {
            max-height: 0 !important;
            padding-top: 0 !important;
            padding-bottom: 0 !important;
            overflow: hidden !important;
        }

        .about-developer {
            padding: 15px;
            flex-direction: column;
            text-align: center;
        }

        .developer-photo {
            width: 80px;
            height: 80px;
        }

        .developer-details {
            flex-direction: column;
        }

        .detail-group {
            min-width: 100%;
        }

        .social-links {
            justify-content: center;
        }
    

    @media (max-width: 350px) {
        .page-title {
            font-size: 1.2rem;
        }

        .chart-container {
            height: 250px;
        }

        .data-options-title {
            flex-direction: column;
            gap: 10px;
        }

        .stat-item {
            flex-direction: column;
            text-align: center;
        }

        .chart-badge {
            font-size: 0.7rem;
            padding: 2px 6px;
        }
    }

    @media (max-width: 480px) {
        * {
            font-size: 14px;
        }

        .container {
            padding: 10px;
            max-width: 100%;
        }

        .dashboard-header {
            padding: 10px;
        }

        .page-title {
            font-size: 1.2rem;
            text-align: center;
            width: 100%;
        }

        .nav-container {
            padding: 8px;
        }

        .nav-links {
            font-size: 0.9rem;
            gap: 8px;
            padding: 5px;
        }

        .nav-links a {
            padding: 5px 8px;
            white-space: nowrap;
        }

        .filter-controls,
        .data-options {
            padding: 12px;
            margin: 10px 0;
        }

        .filter-buttons {
            gap: 5px;
        }

        .filter-btn,
        .action-btn {
            padding: 6px 12px;
            font-size: 0.85rem;
        }

        .chart-container {
            aspect-ratio: 16/9;
            height: auto !important;
            min-height: 250px;
            max-height: 350px;
        }
    }
        /* Override inline styles for mobile */
        #studentChartContainer,
        #subjectChartContent .chart-container,
        .modal .chart-container {
            height: auto !important;
            min-height: 250px !important;
        }

        .gallery {
            gap: 15px;
        }

        .gallery-item {
            margin: 0;
            border-radius: 8px;
        }

        .chart-info {
            padding: 10px;
        }

        .chart-title {
            font-size: 1rem;
        }

        .chart-desc {
            font-size: 0.8rem;
        }

        .stat-item {
            padding: 8px;
            font-size: 0.9rem;
        }

        .section-header {
            padding: 12px;
        }

        .section-header h3 {
            font-size: 1rem;
        }

        .data-select,
        .chart-type-btn {
            font-size: 0.9rem;
            padding: 8px;
            width: 100%;
        }

        /* Ensure all chart containers are responsive */
        .chart-container,
        #studentChartContainer,
        #subjectAnalysisChart,
        .modal .chart-container {
            height: auto !important;
            min-height: 250px !important;
            max-height: 350px !important;
            aspect-ratio: 16/10;
        }

        /* Force responsive behavior for any inline-styled chart containers */
        div[style*="height: 400px"],
        div[style*="height:400px"] {
            height: auto !important;
            min-height: 250px !important;
        }

        /* Better spacing for chart sections on mobile */
        .section-content {
            padding: 15px 10px;
        }

        /* Improve select dropdown for mobile */
        #studentSelect,
        #subjectSelect {
            width: 100%;
            min-width: auto;
            margin-bottom: 15px;
        }

        .modal-container {
            width: 100%;
            margin: 0;
            border-radius: 0;
            height: 100vh;
        }

        .modal-header {
            padding: 10px;
        }

        .modal-body {
            padding: 10px;
        }

        .modal-title {
            font-size: 1rem;
        }

        .toast {
            left: 10px;
            right: 10px;
            bottom: 10px;
            font-size: 0.9rem;
            padding: 10px;
        }

        .data-table-container {
            margin-top: 10px;
        }

        .data-table th,
        .data-table td {
               padding: 8px 12px;
        text-align: left;
        border: 1px solid #ddd;}
    
    /* Student Comparison Chart Sizing */
    #studentComparisonChart, #subjectAnalysisChart {
        width: 100% !important;
        height: 100% !important;
        min-height: 350px;
        max-height: 600px;
        aspect-ratio: 16/10;
        display: block;
    }

    /* General chart container improvements for mobile */
    .chart-container {
        position: relative;
        overflow: hidden;
        padding: 5px;
    }

    /* Modal chart improvements for better downloads */
    .modal .chart-container {
        padding: 20px;
        background: white;
        border-radius: 8px;
    }

    @media (max-width: 600px) {
        .chart-container {
            height: 450px !important;
            min-height: 400px !important;
            max-height: 600px !important;
            margin: 10px 0;
            padding: 5px;
            background: var(--card-bg);
            border-radius: 8px;
        }
        
        #studentChartSection .chart-container,
        #subjectChartSection .chart-container {
            height: 450px !important;
            min-height: 400px !important;
            max-height: 600px !important;
            padding: 8px;
        }
        
        #studentComparisonChart, #subjectAnalysisChart {
            min-height: 400px !important;
            height: 100% !important;
            max-height: 600px !important;
        }

        /* Modal chart container for better downloads */
        .modal .chart-container {
            height: 500px !important;
            min-height: 450px !important;
            padding: 15px;
            margin: 15px auto;
            background: white;
        }

        /* Better spacing for stats summaries on mobile */
        .stats-summary {
            margin-top: 20px !important;
            padding: 15px !important;
            background: var(--card-bg);
            border-radius: 8px;
            box-shadow: var(--box-shadow);
        }

        /* About Developer Responsive for mobile */
        .about-developer {
            flex-direction: column;
            padding: 25px 20px;
            gap: 25px;
            align-items: center;
        }

        .developer-avatar-container {
            text-align: center;
        }

        .developer-photo {
            width: 120px;
            height: 120px;
        }

        .avatar-overlay {
            width: 36px;
            height: 36px;
            font-size: 1.1rem;
        }

        .developer-header {
            text-align: center;
        }

        .developer-name {
            font-size: 1.5rem;
        }

        .developer-role {
            font-size: 1rem;
        }

        .developer-details {
            grid-template-columns: 1fr;
            gap: 20px;
        }

        .detail-group {
            padding: 18px;
        }

        .detail-group:hover {
            transform: translateX(0);
            transform: translateY(-2px);
        }

        .tech-tags {
            justify-content: center;
        }

        .tech-tag {
            font-size: 0.8rem;
            padding: 6px 12px;
        }

        .social-links {
            justify-content: center;
        }

        .social-link {
            padding: 10px 18px;
        }

        .stat-item {
            margin-bottom: 10px !important;
            font-size: 1.1rem !important;
            color: var(--text-color);
            border-bottom: 1px solid var(--hover-bg);
            padding-bottom: 8px;
        }

        .stat-item {
            margin-bottom: 12px !important;
            padding: 8px 0 !important;
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 1px solid var(--hover-bg);
        }

        .stat-item:last-child {
            border-bottom: none;
        }

        .stat-label {
            font-size: 0.9rem !important;
            font-weight: 500;
            color: var(--secondary-text);
        }

        .stat-value {
            font-size: 0.95rem !important;
            font-weight: 600;
            color: var(--primary-green);
        }
    }

    @media (max-width: 480px) {
        .chart-container {
            height: 500px !important;
            min-height: 450px !important;
            max-height: 650px !important;
            margin: 10px 0;
            padding: 5px;
        }
        
        #studentChartSection .chart-container,
        #subjectChartSection .chart-container {
            height: 500px !important;
            min-height: 450px !important;
            max-height: 650px !important;
            padding: 8px;
        }
        
        #studentComparisonChart, #subjectAnalysisChart {
            min-height: 450px !important;
            height: 100% !important;
            max-height: 650px !important;
        }

        /* Modal optimizations for mobile downloads */
        .modal .chart-container {
            height: 550px !important;
            min-height: 500px !important;
            padding: 15px;
            margin: 10px auto;
            background: white;
            border-radius: 12px;
        }

        /* Section headers optimization */
        .section-header {
            padding: 12px;
            margin-bottom: 5px;
        }

        .section-header h3 {
            font-size: 1.1rem !important;
            font-weight: 600;
        }

        /* Select dropdowns optimization */
        .data-select {
            width: 100% !important;
            min-width: auto !important;
            font-size: 0.9rem !important;
            padding: 8px !important;
            margin-bottom: 10px;
            border-radius: 8px;
            border: 2px solid var(--primary-green);
        }

        /* Stats summary improvements */
        .stats-summary {
            margin-top: 15px !important;
            padding: 10px !important;
            background: var(--card-bg);
            border-radius: 8px;
            box-shadow: var(--box-shadow);
        }

        .stat-item {
            margin-bottom: 8px !important;
            padding: 6px !important;
            background: var(--hover-bg);
            border-radius: 6px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .stat-label {
            font-size: 0.8rem !important;
            font-weight: 500;
            color: var(--secondary-text);
        }

        .stat-value {
            font-size: 0.85rem !important;
            font-weight: 600;
            color: var(--primary-green);
        }
    }

    @media (max-width: 350px) {
        .chart-container {
            height: 480px !important;
            min-height: 420px !important;
            max-height: 600px !important;
            margin: 10px 0;
            padding: 12px;
        }
        
        #studentChartSection .chart-container,
        #subjectChartSection .chart-container {
            height: 480px !important;
            min-height: 420px !important;
            max-height: 600px !important;
            padding: 15px;
        }
        
        #studentComparisonChart, #subjectAnalysisChart {
            min-height: 420px !important;
            height: 100% !important;
            max-height: 600px !important;
        }

        /* Modal for very small screens */
        .modal .chart-container {
            height: 500px !important;
            min-height: 450px !important;
            padding: 25px;
            margin: 20px auto;
        }

        /* Section headers for extra small screens */
        .section-header h3 {
            font-size: 1.1rem !important;
            font-weight: 600;
        }

        /* Select optimization for very small screens */
        .data-select {
            font-size: 0.95rem !important;
            padding: 10px !important;
            border-radius: 6px;
        }

        /* Section content for very small screens */
        .section-content {
            padding: 20px;
            max-height: 3500px !important;
            overflow: hidden !important;
            min-height: auto !important;
        }

        .section-content.collapsed {
            max-height: 0 !important;
            padding-top: 0 !important;
            padding-bottom: 0 !important;
            overflow: hidden !important;
        }

        /* Enhanced stats styling for very small screens */
        .stats-summary {
            margin-top: 25px !important;
            padding: 20px !important;
            background: var(--card-bg);
            border-radius: 10px;
            border: 1px solid var(--hover-bg);
            box-shadow: var(--box-shadow);
        }

        .stats-summary h4 {
            margin-bottom: 20px !important;
            font-size: 1.2rem !important;
            color: var(--text-color);
            text-align: center;
            border-bottom: 2px solid var(--primary-green);
            padding-bottom: 10px;
        }

        /* Stats items for very small screens */
        .stat-item {
            padding: 12px !important;
            margin-bottom: 15px !important;
            flex-direction: row !important;
            justify-content: space-between !important;
            align-items: center !important;
            background: var(--hover-bg);
            border-radius: 6px;
            border: none;
        }

        .stat-label, .stat-value {
            font-size: 0.95rem !important;
        }

        .stat-label {
            color: var(--secondary-text);
            font-weight: 500;
        }

        .stat-value {
            font-weight: 700;
            color: var(--primary-green);
        }

        /* About Developer Responsive */
        .about-developer {
            flex-direction: column;
            padding: 25px 15px;
            gap: 20px;
            align-items: center;
        }

        .developer-avatar-container {
            margin: 0 auto;
        }

        .developer-photo {
            width: 100px;
            height: 100px;
        }

        .avatar-overlay {
            width: 32px;
            height: 32px;
            font-size: 1rem;
        }

        .developer-header {
            text-align: center;
        }

        .developer-name {
            font-size: 1.3rem;
        }

        .developer-role {
            font-size: 0.9rem;
        }

        .developer-subtitle {
            font-size: 0.85rem;
        }

        .developer-details {
            grid-template-columns: 1fr;
            gap: 15px;
        }

        .detail-group {
            padding: 15px;
        }

        .detail-group:hover {
            transform: translateX(0);
        }

        .tech-stack {
            padding: 15px;
        }

        .tech-tags {
            justify-content: center;
        }

        .social-links {
            justify-content: center;
            flex-wrap: wrap;
        }

        .social-link {
            padding: 8px 16px;
            font-size: 0.85rem;
        }

        .social-text {
            display: none;
        }
    }