* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body, html {
            width: 100%;
            height: 100%;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: linear-gradient(135deg, #d4a59a 0%, #e6d5b8 50%, #d4a59a 100%);
            background-attachment: fixed;
            color: #333;
            overflow-x: hidden;
        }

        .container {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            min-height: 100vh;
            padding: 40px 20px;
            gap: 40px;
            position: relative;
            z-index: 1;
        }

        /* Logo Section with Animation */
        .logo-section {
            display: flex;
            justify-content: center;
            align-items: center;
            margin-bottom: 0px;
            animation: fadeInScale 0.8s ease-in;
        }

        .logo-wrapper {
            position: relative;
            width: 600px;
            height: 200px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        /* Logo image with floating animation only */
        .logo-section img {
            max-width: 600px;
            width: 100%;
            height: auto;
            filter: drop-shadow(0 4px 15px rgba(0, 0, 0, 0.15));
            position: relative;
            z-index: 1;
            animation: float 3s ease-in-out infinite;
        }

        /* Instruction Text */
        .instruction-text {
            font-size: 25px;
            color: #DC3545;
            font-weight: 500;
            text-align: center;
            margin-bottom: 0px;
            letter-spacing: 0.5px;
            animation: fadeIn 1s ease-in;
        }

        /* Videos Grid Section */
        .videos-section {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 40px;
            flex-wrap: wrap;
            max-width: 1400px;
            width: 100%;
        }

        .video-card {
            position: relative;
            width: 380px;
            height: 340px;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
            transition: all 0.4s ease;
            cursor: pointer;
            background: linear-gradient(135deg, #ffffff 0%, #f5f5f5 100%);
            border: 2px solid rgba(220, 53, 69, 0.2);
        }

        .video-card.active {
            border-color: #DC3545;
            box-shadow: 0 0 25px rgba(220, 53, 69, 0.4), inset 0 0 15px rgba(220, 53, 69, 0.08);
            transform: scale(1.02);
        }

        .video-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
            opacity: 0.95;
            transition: opacity 0.3s ease;
        }

        .video-title {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 20px 15px;
            background: linear-gradient(to top, rgba(0, 0, 0, 0.85) 0%, rgba(0, 0, 0, 0.6) 70%, transparent 100%);
            color: white;
            font-size: 20px;
            font-weight: 600;
            text-align: center;
            letter-spacing: 0.5px;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
            z-index: 2;
            transition: all 0.3s ease;
        }

        .video-card.active .video-title {
            background: linear-gradient(to top, rgba(220, 53, 69, 0.95) 0%, rgba(220, 53, 69, 0.75) 70%, transparent 100%);
        }

        /* Home Button */
        .home-button {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, #DC3545 0%, #FF8C00 100%);
            border: none;
            border-radius: 50%;
            color: white;
            font-size: 28px;
            cursor: pointer;
            box-shadow: 0 8px 20px rgba(220, 53, 69, 0.35);
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 100;
            font-weight: bold;
            opacity: 0;
            pointer-events: none;
            -webkit-user-select: none;
            user-select: none;
            -webkit-tap-highlight-color: transparent;
            outline: none !important;
            border: none !important;
        }

        .home-button.visible {
            opacity: 1;
            pointer-events: auto;
        }

        .home-button:focus {
            outline: none !important;
            border: none !important;
        }

        .home-button:active {
            outline: none !important;
            border: none !important;
        }

        /* Animations */
        @keyframes fadeIn {
            from {
                opacity: 0;
            }
            to {
                opacity: 1;
            }
        }

        @keyframes fadeInScale {
            from {
                opacity: 0;
                transform: scale(0.95);
            }
            to {
                opacity: 1;
                transform: scale(1);
            }
        }

        @keyframes float {
            0%, 100% {
                transform: translateY(0px);
            }
            50% {
                transform: translateY(-10px);
            }
        }

        /* Responsive Design */
        @media (max-width: 1024px) {
            .videos-section {
                gap: 30px;
            }

            .video-card {
                width: 340px;
                height: 300px;
            }
        }

        @media (max-width: 768px) {
            .container {
                gap: 15px;
                padding: 25px 15px;
            }

            .logo-wrapper {
                width: 300px;
                height: 120px;
            }

            .logo-section img {
                max-width: 300px;
            }

            .instruction-text {
                font-size: 16px;
                margin-bottom: 10px;
            }

            .videos-section {
                gap: 30px;
                flex-direction: column;
            }

            .video-card {
                width: 100%;
                max-width: 400px;
                height: 280px;
            }

            .home-button {
                width: 55px;
                height: 55px;
                font-size: 24px;
                bottom: 25px;
                right: 25px;
            }
        }

        @media (max-width: 480px) {
            .container {
                gap: 12px;
                padding: 20px 10px;
            }

            .logo-wrapper {
                width: 250px;
                height: 100px;
            }

            .logo-section img {
                max-width: 250px;
            }

            .instruction-text {
                font-size: 14px;
            }

            .video-card {
                width: 100%;
                height: 240px;
            }

            .home-button {
                width: 50px;
                height: 50px;
                font-size: 20px;
                bottom: 20px;
                right: 20px;
            }
        }