body, html {
            margin: 0;
            padding: 0;
            font-family: 'Roboto', sans-serif;
            color: #ecf0f1;
            height: 100%;
            background: linear-gradient(135deg, #0a3d62, #0779e4);
            line-height: 1.7;
            overflow-x: hidden;
            scroll-behavior: smooth;
        }

        @keyframes fadeInSlideUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @keyframes fadeInDown {
            from {
                opacity: 0;
                transform: translateY(-20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @keyframes scaleIn {
            from {
                opacity: 0;
                transform: scale(0.8);
            }
            to {
                opacity: 1;
                transform: scale(1);
            }
        }

        h1, h2, h3, h4 {
            font-family: 'Montserrat', sans-serif;
            color: #00e0ff;
            text-shadow: 0 2px 8px rgba(0, 224, 255, 0.3);
            margin-bottom: 15px;
        }

        h1 {
            font-size: 3.5em;
            margin-bottom: 5px;
            letter-spacing: 1px;
            animation: fadeInDown 0.8s ease-out forwards;
        }

        h2 {
            font-size: 1.8em;
            margin-top: 0;
            margin-bottom: 20px;
            color: #8edffc;
            animation: fadeInDown 1s ease-out forwards;
        }

        h3 {
            font-size: 2em;
            margin-top: 40px;
            margin-bottom: 20px;
            border-bottom: 3px solid #00e0ff;
            padding-bottom: 10px;
            display: inline-block;
            color: #00e0ff;
            animation: fadeInSlideUp 0.7s ease-out forwards;
        }

        h3 i {
            margin-right: 10px;
            color: #00e0ff;
        }

        h4 {
            font-size: 1.5em;
            margin-top: 30px;
            margin-bottom: 15px;
            color: #afeeee;
        }
        h4 i {
            margin-right: 8px;
        }

        .profile-wrapper {
            display: flex;
            flex-direction: column;
            justify-content: flex-start;
            align-items: center;
            min-height: 100vh;
            padding: 40px 20px;
            box-sizing: border-box;
            position: relative;
            overflow-y: auto;
            -webkit-overflow-scrolling: touch;
        }

        .header-section {
            background-color: rgba(10, 30, 50, 0.7);
            padding: 60px 40px 30px;
            border-radius: 20px;
            text-align: center;
            max-width: 900px;
            width: 100%;
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            position: relative;
            border: 1px solid rgba(0, 224, 255, 0.3);
            margin-bottom: 30px;
            z-index: 10;
            animation: scaleIn 0.8s cubic-bezier(0.68, -0.55, 0.27, 1.55) forwards;
        }

        .avatar-container {
            width: 180px;
            height: 180px;
            border-radius: 50%;
            overflow: hidden;
            margin: -100px auto 30px auto;
            border: 7px solid #00e0ff;
            box-shadow: 0 0 25px rgba(0, 224, 255, 0.7), 0 0 50px rgba(0, 224, 255, 0.3);
            position: relative;
            z-index: 2;
            transition: transform 0.3s ease;
        }
        .avatar-container:hover {
            transform: scale(1.05) rotate(5deg);
        }

        .avatar {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .tagline {
            font-size: 1.2em;
            font-style: italic;
            color: #c9e6ff;
            margin-top: -10px;
            margin-bottom: 30px;
            animation: fadeInSlideUp 1.2s ease-out forwards;
        }

        .social-links {
            margin-top: 20px;
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 15px;
            animation: fadeInSlideUp 1.4s ease-out forwards;
        }

        .social-links .social-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 55px;
            height: 55px;
            color: #ecf0f1;
            background: linear-gradient(45deg, #00bfff, #0077c2);
            border-radius: 50%;
            text-decoration: none;
            font-size: 1.6em;
            transition: background-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
        }

        .social-links .social-icon:hover {
            background: linear-gradient(45deg, #0077c2, #00bfff);
            transform: translateY(-8px) scale(1.1);
            box-shadow: 0 8px 20px rgba(0, 224, 255, 0.5);
        }

        .horizontal-nav {
            background-color: rgba(10, 30, 50, 0.8);
            border-radius: 15px;
            max-width: 900px;
            width: 100%;
            padding: 10px 0;
            margin-bottom: 30px;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
            overflow-x: auto;
            white-space: nowrap;
            -webkit-overflow-scrolling: touch;
            display: flex;
            justify-content: flex-start;
            align-items: center;
            border: 1px solid rgba(0, 224, 255, 0.3);
            animation: fadeInSlideUp 1.8s ease-out forwards;
        }

        .horizontal-nav a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 25px;
            color: #ecf0f1;
            text-decoration: none;
            font-weight: bold;
            font-size: 1.1em;
            transition: background-color 0.3s ease, color 0.3s ease, transform 0.2s ease;
            border-radius: 10px;
            margin: 0 5px;
            flex-shrink: 0;
            gap: 8px;
        }

        .horizontal-nav a:hover,
        .horizontal-nav a.active-section {
            background-color: rgba(0, 224, 255, 0.2);
            color: #00e0ff;
            transform: translateY(-3px);
        }
        .horizontal-nav a.active-section {
            border: 1px solid #00e0ff;
            box-shadow: 0 0 10px rgba(0, 224, 255, 0.5);
        }
        .horizontal-nav a i {
            font-size: 1.2em;
        }

        .content-sections-container {
            position: relative;
            background-color: rgba(10, 30, 50, 0.7);
            padding: 30px 40px;
            border-radius: 20px;
            max-width: 900px;
            width: 100%;
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid rgba(0, 224, 255, 0.3);
            min-height: 400px;
            margin-bottom: 30px;
            overflow: hidden;
            transition: height 0.6s ease-in-out;
        }

        .content-section {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            padding: 30px 40px;
            box-sizing: border-box;
            opacity: 0;
            pointer-events: none;
            transform: translateX(100%);
            transition: opacity 0.6s ease-in-out, transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            overflow-y: auto;
            -webkit-overflow-scrolling: touch;
        }

        .content-section.active {
            opacity: 1;
            pointer-events: auto;
            transform: translateX(0);
            position: relative;
            animation: fadeInSlideUp 0.8s ease-out forwards;
        }

        .content-section h3:first-child {
            margin-top: 0;
        }

        .content-section p, .content-section ul, .bank-info p {
            font-size: 1.1em;
            margin-bottom: 1em;
            color: #c9e6ff;
            text-align: left;
        }

        .skills-list {
            list-style: none;
            padding-left: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
        }

        .skills-list li {
            background-color: rgba(0, 191, 255, 0.2);
            padding: 8px 15px;
            border-radius: 20px;
            font-weight: bold;
            color: #e0f2f7;
            border: 1px solid rgba(0, 224, 255, 0.5);
            transition: transform 0.3s ease, background-color 0.3s ease;
        }
        .skills-list li:hover {
            transform: translateY(-3px) scale(1.02);
            background-color: rgba(0, 191, 255, 0.4);
            box-shadow: 0 5px 15px rgba(0, 224, 255, 0.3);
        }
        .skills-list li i {
            margin-right: 8px;
            color: #00e0ff;
        }

        .project-item {
            background-color: rgba(255, 255, 255, 0.1);
            padding: 25px;
            border-radius: 12px;
            margin-bottom: 25px;
            transition: transform 0.3s ease, background-color 0.3s ease, box-shadow 0.3s ease;
            border-left: 5px solid #00e0ff;
            text-align: left;
        }

        .project-item:hover {
            transform: translateY(-5px);
            background-color: rgba(255, 255, 255, 0.15);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
        }

        .project-item h4 {
            color: #afeeee;
            margin-top: 0;
            margin-bottom: 10px;
            font-size: 1.4em;
        }

        .project-item p {
            font-size: 1em;
            margin-bottom: 15px;
        }

        .project-item a {
            color: #00e0ff;
            text-decoration: none;
            font-weight: bold;
            transition: color 0.3s ease;
        }

        .project-item a:hover {
            color: #fff;
            text-decoration: underline;
        }

        .project-item a i {
            margin-left: 5px;
            font-size: 0.9em;
        }

        .bank-info {
            background-color: rgba(0, 0, 0, 0.2);
            padding: 20px;
            border-radius: 10px;
            margin-top: 30px;
            border: 1px solid rgba(0, 224, 255, 0.3);
            text-align: left;
        }

        .bank-info p {
            margin-bottom: 10px;
            font-size: 1.1em;
        }

        .bank-info p i {
            margin-right: 10px;
            color: #00e0ff;
        }

        .bank-info span {
            font-weight: bold;
            color: #ffe066;
            user-select: all;
        }

        .copy-btn {
            background-color: #00bfff;
            color: white;
            border: none;
            padding: 8px 12px;
            border-radius: 5px;
            cursor: pointer;
            margin-left: 10px;
            transition: background-color 0.3s ease, transform 0.2s ease;
            font-size: 0.9em;
            white-space: nowrap;
        }
        .copy-btn:hover {
            background-color: #0077c2;
            transform: translateY(-2px);
        }
        .copy-btn i {
            margin-right: 5px;
        }
        .copy-btn.copied {
            background-color: #28a745;
        }
        .copy-btn.copied:hover {
            background-color: #218838;
        }

        .qr-code-note {
            font-style: italic;
            color: #b3d9ff;
            margin-top: 15px;
            font-size: 0.95em;
        }
        .qr-code-note i {
            margin-right: 8px;
            color: #00e0ff;
        }
        .qr-code {
            max-width: 180px;
            height: auto;
            display: block;
            margin: 15px auto 0;
            border-radius: 5px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.3);
            border: 3px solid #00e0ff;
        }

        .community-form-container {
            background-color: rgba(255, 255, 255, 0.1);
            padding: 25px;
            border-radius: 12px;
            margin-bottom: 30px;
            border: 1px solid rgba(0, 224, 255, 0.3);
        }
        .community-form-container label {
            display: block;
            margin-bottom: 8px;
            font-weight: bold;
            color: #afeeee;
        }
        .community-form-container input[type="text"],
        .community-form-container textarea {
            width: calc(100% - 20px);
            padding: 10px;
            margin-bottom: 15px;
            border-radius: 8px;
            border: 1px solid #00e0ff;
            background-color: rgba(0, 0, 0, 0.3);
            color: #ecf0f1;
            font-size: 1em;
            box-sizing: border-box;
        }
        .community-form-container textarea {
            resize: vertical;
            min-height: 80px;
        }
        .community-form-container input[type="submit"] {
            background-color: #00bfff;
            color: white;
            border: none;
            padding: 12px 25px;
            border-radius: 8px;
            cursor: pointer;
            font-size: 1.1em;
            font-weight: bold;
            transition: background-color 0.3s ease, transform 0.2s ease;
        }
        .community-form-container input[type="submit"]:hover {
            background-color: #0077c2;
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
        }

        .message-list {
            max-height: 450px;
            overflow-y: auto;
            padding-right: 15px;
            -webkit-overflow-scrolling: touch;
            border-top: 1px dashed rgba(0, 224, 255, 0.3);
            padding-top: 20px;
            margin-top: 25px;
        }
        .message-item {
            background-color: rgba(0, 0, 0, 0.25);
            padding: 18px 25px;
            border-radius: 12px;
            margin-bottom: 18px;
            border-left: 5px solid #00e0ff;
            position: relative;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
            transition: transform 0.2s ease, box-shadow 0.2s ease;
        }
        .message-item:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
        }
        .message-item:last-child {
            margin-bottom: 0;
        }
        .message-item .message-header {
            display: flex;
            justify-content: space-between;
            align-items: baseline;
            margin-bottom: 10px;
            border-bottom: 1px solid rgba(0, 224, 255, 0.15);
            padding-bottom: 8px;
        }
        .message-item .display-name {
            font-weight: bold;
            color: #00e0ff;
            font-size: 1.2em;
            text-shadow: 0 1px 3px rgba(0, 224, 255, 0.1);
        }
        .message-item .timestamp {
            font-size: 0.9em;
            color: #b3d9ff;
            white-space: nowrap;
        }
        .message-item .message-content {
            white-space: pre-wrap;
            word-wrap: break-word;
            color: #e0f2f7;
            font-size: 1.05em;
        }

        .message-item .message-content strong {
            color: #fff;
            text-shadow: 0 0 5px rgba(255,255,255,0.3);
        }
        .message-item .message-content em {
            color: #afeeee;
            font-style: italic;
        }

        .message-notification {
            background-color: #28a745;
            color: white;
            padding: 10px 20px;
            border-radius: 8px;
            position: fixed;
            top: 20px;
            right: 20px;
            z-index: 1000;
            display: none;
            opacity: 0;
            transition: opacity 0.5s ease-in-out;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
        }
        .message-notification.show {
            display: block;
            opacity: 1;
        }
        .message-notification.error {
            background-color: #dc3545;
        }

        footer {
            margin-top: 50px;
            padding: 20px;
            text-align: center;
            color: rgba(255, 255, 255, 0.8);
            background-color: rgba(0, 0, 0, 0.3);
            width: 100%;
            box-shadow: inset 0 5px 15px rgba(0, 0, 0, 0.2);
            box-sizing: border-box;
            position: relative;
            bottom: 0;
        }

        footer p {
            margin: 5px 0;
            font-size: 0.9em;
        }

        @media (max-width: 992px) {
            h1 {
                font-size: 3em;
            }
            h2 {
                font-size: 1.6em;
            }
            h3 {
                font-size: 1.6em;
            }
            .profile-wrapper {
                padding: 30px 15px;
            }
            .header-section {
                padding: 50px 30px 25px;
            }
            .avatar-container {
                width: 160px;
                height: 160px;
                margin: -90px auto 25px auto;
                border-width: 6px;
            }
            .horizontal-nav a {
                padding: 10px 20px;
                font-size: 1em;
            }
            .content-sections-container {
                padding: 25px 30px;
            }
            .content-section {
                padding: 25px 30px;
            }
            .message-item {
                padding: 15px 20px;
            }
        }

        @media (max-width: 768px) {
            h1 {
                font-size: 2.5em;
            }
            h2 {
                font-size: 1.4em;
            }
            h3 {
                font-size: 1.6em;
            }
            .profile-wrapper {
                padding: 25px 15px;
            }
            .header-section {
                padding: 40px 25px 20px;
                margin-bottom: 20px;
            }
            .avatar-container {
                width: 140px;
                height: 140px;
                margin: -60px auto 20px auto;
                border-width: 6px;
            }
            .social-links .social-icon {
                width: 50px;
                height: 50px;
                font-size: 1.5em;
                gap: 10px;
            }
            .tagline {
                font-size: 1.1em;
            }
            .horizontal-nav {
                padding: 8px 0;
                margin-bottom: 20px;
            }
            .horizontal-nav a {
                padding: 8px 18px;
                font-size: 0.95em;
                gap: 6px;
                margin: 0 3px;
            }
            .content-sections-container {
                padding: 20px 25px;
            }
            .content-section {
                padding: 20px 25px;
            }
            .profile-content p, .profile-content ul {
                font-size: 1em;
            }
            .skills-list li {
                padding: 7px 12px;
                font-size: 0.95em;
            }
            .project-item {
                padding: 20px;
            }
            .bank-info {
                padding: 15px;
            }
            .bank-info p {
                font-size: 1em;
            }
            .copy-btn {
                padding: 7px 10px;
                font-size: 0.85em;
            }
            .community-form-container input[type="text"],
            .community-form-container textarea {
                width: calc(100% - 16px);
                padding: 8px;
            }
            .community-form-container input[type="submit"] {
                padding: 10px 20px;
                font-size: 1em;
            }
            .message-item {
                padding: 12px 15px;
            }
            .message-item .display-name {
                font-size: 1em;
            }
            .message-item .timestamp {
                font-size: 0.8em;
            }
        }

        @media (max-width: 480px) {
            h1 {
                font-size: 2em;
            }
            h2 {
                font-size: 1.1em;
            }
            h3 {
                font-size: 1.4em;
            }
            .profile-wrapper {
                padding: 20px 10px;
            }
            .header-section {
                padding: 30px 15px 15px;
            }
            .avatar-container {
                width: 110px;
                height: 110px;
                margin: -40px auto 15px auto;
                border-width: 5px;
            }
            .social-links {
                gap: 10px;
            }
            .social-links .social-icon {
                width: 40px;
                height: 40px;
                font-size: 1.3em;
            }
            .tagline {
                font-size: 1em;
            }
            .horizontal-nav a {
                padding: 6px 15px;
                font-size: 0.85em;
                gap: 5px;
            }
            .content-sections-container {
                padding: 15px 20px;
            }
            .content-section {
                padding: 15px 20px;
            }
            .skills-list li {
                font-size: 0.9em;
            }
            .bank-info p {
                font-size: 0.95em;
            }
            .copy-btn {
                display: block;
                width: fit-content;
                margin-left: 0;
                margin-top: 5px;
            }
            .qr-code {
                max-width: 120px;
            }
        }