body {
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

/* --- GLOBAL & BASE STYLES --- */
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        body {
            font-family: 'Poppins', sans-serif;
            min-height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            overflow-x: hidden;
            padding: 20px;
            color: #333;
            transition: color 0.4s ease;
        }

        /* --- ADVANCED ANIMATED BACKGROUND --- */
        .bg-blobs {
            position: fixed;
            top: 0; left: 0; right: 0; bottom: 0;
            z-index: -1;
            overflow: hidden;
            background: #f4f7f6;
            transition: background 0.5s ease;
        }

        .blob {
            position: absolute;
            border-radius: 50%;
            filter: blur(80px);
            opacity: 0.6;
            animation: float 12s infinite ease-in-out alternate;
        }

        .blob-1 {
            top: -10%; left: -10%;
            width: 50vw; height: 50vw;
            background: #ffcccc;
            animation-delay: 0s;
        }

        .blob-2 {
            bottom: -10%; right: -10%;
            width: 40vw; height: 40vw;
            background: #ffddcc;
            animation-delay: -5s;
        }

        .blob-3 {
            top: 40%; left: 60%;
            width: 30vw; height: 30vw;
            background: #ffeeee;
            animation-duration: 18s;
        }

        /* Dark Mode Backgrounds */
        body.dark-mode { color: #fff; }
        body.dark-mode .bg-blobs { background: #111; }
        body.dark-mode .blob-1 { background: #4a0000; }
        body.dark-mode .blob-2 { background: #4a3b00; }
        body.dark-mode .blob-3 { background: #220000; }

        @keyframes float {
            0% { transform: translate(0, 0) scale(1); }
            100% { transform: translate(40px, 60px) scale(1.1); }
        }

        /* --- GLASSMORPHISM CONTAINER --- */
        .container {
            text-align: center;
            background: rgba(255, 255, 255, 0.7);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid rgba(255, 255, 255, 0.5);
            border-radius: 20px;
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
            padding: 50px;
            max-width: 650px;
            width: 100%;
            animation: slideUpFade 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
            opacity: 0;
            transform: translateY(40px);
        }

        body.dark-mode .container {
            background: rgba(30, 30, 30, 0.65);
            border: 1px solid rgba(255, 255, 255, 0.08);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
        }

        @keyframes slideUpFade {
            to { opacity: 1; transform: translateY(0); }
        }

        /* --- HEADER & TYPOGRAPHY --- */
        .icon-wrapper {
            font-size: 3rem;
            color: #ff3333;
            margin-bottom: 15px;
            animation: bounceIn 1s cubic-bezier(0.175, 0.885, 0.32, 1.275) 0.5s forwards;
            opacity: 0;
            transform: scale(0.5);
        }
        
        body.dark-mode .icon-wrapper { color: #ffff00; }

        @keyframes bounceIn {
            to { opacity: 1; transform: scale(1); }
        }

        h1 {
            font-size: 2.5em;
            color: #ff3333;
            margin-bottom: 15px;
            font-weight: 700;
            letter-spacing: -0.5px;
            transition: color 0.4s ease;
        }

        body.dark-mode h1 { color: #ffff00; }

        p.subtitle {
            font-size: 1.15em;
            color: #555;
            margin-bottom: 35px;
            line-height: 1.6;
            transition: color 0.4s ease;
        }

        body.dark-mode p.subtitle { color: #ddd; }
        
        strong { color: #ff3333; transition: color 0.4s; }
        body.dark-mode strong { color: #ffff00; }

        /* --- ADVANCED INFO BOX --- */
        .info-box {
            background: rgba(255, 255, 255, 0.5);
            border-radius: 15px;
            padding: 30px;
            margin: 20px 0 35px;
            text-align: left;
            border: 1px solid rgba(255, 255, 255, 0.6);
            box-shadow: inset 0 0 10px rgba(255,255,255,0.5);
            transition: background 0.4s ease, border 0.4s ease;
        }

        body.dark-mode .info-box {
            background: rgba(0, 0, 0, 0.3);
            border: 1px solid rgba(255, 255, 255, 0.05);
            box-shadow: inset 0 0 10px rgba(0,0,0,0.5);
        }

        .info-box h2 {
            color: #2c3e50;
            font-size: 1.4em;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: color 0.4s ease;
        }

        body.dark-mode .info-box h2 { color: #fff; }

        .info-box ul {
            list-style-type: none;
        }

        .info-box li {
            margin: 12px 0;
            color: #444;
            display: flex;
            align-items: flex-start;
            padding: 12px 15px;
            background: rgba(255, 255, 255, 0.4);
            border-radius: 10px;
            transition: transform 0.3s ease, background 0.3s ease, color 0.4s ease;
        }

        body.dark-mode .info-box li {
            background: rgba(255, 255, 255, 0.03);
            color: #ccc;
        }

        .info-box li:hover {
            transform: translateX(10px);
            background: rgba(255, 51, 51, 0.08);
        }

        body.dark-mode .info-box li:hover {
            background: rgba(255, 255, 0, 0.08);
        }

        .info-box li i {
            color: #ff3333;
            font-size: 1.2em;
            width: 30px;
            margin-top: 3px;
            transition: color 0.4s ease;
        }

        body.dark-mode .info-box li i { color: #ffff00; }

        /* --- BUTTONS --- */
        .btn {
            background-color: #ff3333;
            color: white;
            padding: 14px 35px;
            border: none;
            border-radius: 30px;
            text-decoration: none;
            font-size: 1.1em;
            font-weight: 600;
            transition: all 0.3s ease;
            box-shadow: 0 8px 20px rgba(255, 51, 51, 0.3);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .btn:hover {
            background-color: #e60000;
            transform: translateY(-3px);
            box-shadow: 0 12px 25px rgba(255, 51, 51, 0.4);
            color: white;
        }

        body.dark-mode .btn {
            background-color: #ffff00;
            color: #000;
            box-shadow: 0 8px 20px rgba(255, 255, 0, 0.2);
        }

        body.dark-mode .btn:hover {
            background-color: #e6e600;
            box-shadow: 0 12px 25px rgba(255, 255, 0, 0.3);
            color: #000;
        }

        /* --- DARK MODE TOGGLE (TOP RIGHT) --- */
        .theme-switch-wrapper {
            position: absolute;
            top: 30px;
            right: 30px;
            display: flex;
            align-items: center;
            gap: 12px;
            z-index: 100;
        }

        .theme-switch-wrapper em {
            font-style: normal;
            font-size: 0.9em;
            font-weight: 500;
            color: #555;
            transition: color 0.4s ease;
        }

        body.dark-mode .theme-switch-wrapper em { color: #ccc; }

        .theme-switch {
            position: relative;
            display: inline-block;
            width: 54px;
            height: 28px;
        }

        .theme-switch input {
            opacity: 0;
            width: 0;
            height: 0;
        }

        .slider {
            position: absolute;
            cursor: pointer;
            top: 0; left: 0; right: 0; bottom: 0;
            background-color: #ff3333;
            transition: .4s;
            border-radius: 34px;
            box-shadow: inset 0 2px 5px rgba(0,0,0,0.2);
        }

        .slider:before {
            position: absolute;
            content: "\f186"; /* Moon icon */
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            height: 20px;
            width: 20px;
            left: 4px;
            bottom: 4px;
            background-color: white;
            color: #ff3333;
            transition: .4s;
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            font-size: 12px;
        }

        input:checked + .slider {
            background-color: #444;
        }

        input:checked + .slider:before {
            transform: translateX(26px);
            content: "\f185"; /* Sun icon */
            color: #000;
            background-color: #ffff00;
        }

        /* --- RESPONSIVENESS --- */
        @media screen and (max-width: 768px) {
            .container { padding: 40px 25px; }
            h1 { font-size: 2em; }
            .theme-switch-wrapper { top: 20px; right: 20px; }
            .theme-switch-wrapper em { display: none; } /* Hide text on mobile for space */
        }

        @media screen and (max-width: 480px) {
            .container { padding: 30px 20px; }
            h1 { font-size: 1.7em; }
            p.subtitle { font-size: 1em; }
            .info-box { padding: 20px 15px; }
            .info-box li { font-size: 0.95em; flex-direction: column; gap: 5px; align-items: center; text-align: center; }
            .info-box li i { margin-right: 0; }
        }