/* Reset & Base */
        * {
            box-sizing: border-box;
        }
        html, body {
            margin: 0;
            padding: 0;
            font-family: 'Open Sans', sans-serif;
            background: #f4f6f9;
            color: #222;
            overflow-x: hidden;
            /* Push everything below the fixed header (≈60px tall) */
            padding-top: 60px;
        }

        h1, h2, h3, h4, h5, h6 {
            font-family: 'Montserrat', sans-serif;
        }

        /* Navbar */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            width: 100%;
            background-color: rgba(206, 40, 40, 0.95);
            padding: 0.7rem 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            z-index: 1000;
            box-shadow: 0 2px 8px rgba(0,0,0,0.15);
        }

        .logo {
            display: flex;
            align-items: center;
            font-family: 'Montserrat', sans-serif;
            color: white;
            font-weight: 700;
            font-size: 1.5rem;
        }

        .logo img {
            height: 50px;
            margin-right: 10px;
        }

        .nav-links {
            list-style: none;
            display: flex;
            gap: 1rem;
            margin: 0;
            transition: transform 0.3s ease-in-out;
        }

        .nav-links li a {
            font-family: 'Open Sans', sans-serif;
            color: white;
            font-weight: 500;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            text-decoration: none;
            padding: 0.5rem 1rem;
            border-radius: 5px;
            transition: background-color 0.2s;
            display: block;
        }
        .nav-links li a:hover,
        .nav-links li a.active {
            background-color: rgba(183, 28, 28, 0.8);
            color: white;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
        }
        .hamburger span {
            height: 3px;
            width: 25px;
            background: #fff;
            margin-bottom: 4px;
            border-radius: 2px;
            transition: 0.3s;
        }

        /* Main Content Wrapper */
        .content {
            width: 90%;
            max-width: 1140px;
            margin: 40px auto;
            background: white;
            padding: 30px;
            border-radius: 12px;
            box-shadow: 0 0 10px rgba(0,0,0,0.08);
        }

        /* --- Utility Classes --- */
        .container {
            max-width: 1400px; 
            margin: 0 auto;
            padding: 0 40px;
        }
        .section-padding {
            padding: 100px 0;
        }
        h1 {
            font-size: 3.5rem;
            letter-spacing: -2px;
        }
        h2 {
            font-size: 2.5rem;
            letter-spacing: -1px;
            text-align: center;
            margin-bottom: 60px;
        }
        p {
            font-size: 1.1rem;
            color: #444;
            max-width: 600px;
        }
        .fade-in {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.6s ease-out, transform 0.6s ease-out;
        }
        .fade-in.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* --- Buttons --- */
        .btn {
            display: inline-block;
            text-decoration: none;
            padding: 12px 28px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 1rem;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .btn-primary {
            background-color: #c62828;
            color: white;
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        }
        .btn-secondary {
            background-color: transparent;
            color: #c62828;
            border: 2px solid #c62828;
        }
        .btn-secondary:hover {
            background-color: #c62828;
            color: white;
            transform: translateY(-3px);
        }

        /* --- Hero Section --- */
        #hero {
            padding-top: 100px;
            padding-bottom: 100px;
            text-align: center;
        }
        #hero .container {
            display: flex;
            flex-direction: column;
            align-items: center;
        }
        #hero .hero-content h1 {
            max-width: 800px;
            margin: 0 auto;
        }
        #hero .hero-content p {
            margin: 25px auto 40px;
            font-size: 1.25rem;
        }
        #hero .hero-image-wrapper {
            margin-top: 80px;
            width: 100%;
            max-width: 400px;
            position: relative;
        }
        #hero .hero-image-wrapper img {
            width: 100%;
            height: auto;
            display: block;
            border-radius: 24px;
            box-shadow: 0 20px 40px rgba(0,0,0,0.15);
        }

        /* --- Download Section --- */
        #download {
            background: linear-gradient(135deg, #1a2a6c, #b21f1f, #fdbb2d);
            color: #fff;
            position: relative;
            overflow-x: hidden;
        }
        #download::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="rgba(255,255,255,0.1)" d="M0,192L48,197.3C96,203,192,213,288,229.3C384,245,480,267,576,250.7C672,235,768,181,864,181.3C960,181,1056,235,1152,234.7C1248,235,1344,181,1392,154.7L1440,128L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat bottom;
            background-size: cover;
            z-index: -1;
        }
        #download h2 {
            color: white;
            margin-bottom: 20px;
        }
        #download p {
            color: #ddd;
            margin: 0 auto 40px;
            text-align: center;
        }
        .version-info {
            background: rgba(255, 255, 255, 0.1);
            padding: 15px;
            border-radius: 15px;
            margin: 20px auto;
            max-width: 500px;
            display: flex;
            justify-content: space-around;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
        }
        .version-item {
            text-align: center;
        }
        .version-item h3 {
            font-size: 1rem;
            font-weight: 500;
            margin-bottom: 5px;
            color: #ddd;
        }
        .version-item p {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
        }
        .download-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: linear-gradient(45deg, #ff416c, #ff4b2b);
            color: white;
            font-size: 1.3rem;
            font-weight: 600;
            padding: 18px 40px;
            border-radius: 50px;
            text-decoration: none;
            margin: 30px 0 15px;
            transition: all 0.3s ease;
            box-shadow: 0 10px 20px rgba(255, 75, 43, 0.4);
            border: none;
            cursor: pointer;
        }
        .download-btn:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 25px rgba(255, 75, 43, 0.6);
        }
        .download-btn:active {
            transform: translateY(0);
        }
        .security-note {
            margin-top: 20px;
            font-size: 0.9rem;
            color: #ddd;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }
        .security-note i {
            color: #4CAF50;
            margin-right: 5px;
        }
        
        /* Tutorial Button Style */
        .tutorial-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(10px);
            color: white;
            font-size: 1.1rem;
            font-weight: 600;
            padding: 14px 30px;
            border-radius: 50px;
            text-decoration: none;
            margin: 20px auto;
            transition: all 0.3s ease;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
            border: 2px solid rgba(255, 255, 255, 0.2);
            cursor: pointer;
        }
        .tutorial-btn:hover {
            background: rgba(255, 255, 255, 0.25);
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
        }
        .tutorial-btn i {
            font-size: 1.2rem;
        }

        /* Gradient*/
        .tblood-gradient {
            background: linear-gradient(to right, #780000, #c1121f);
        }

        .social-icon {
            transition: all 0.3s ease;
        }

        .social-icon:hover {
            transform: translateY(-3px) scale(1.1);
        }

        /* Footer styles */
        .footer-content {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            margin-bottom: 20px;
        }

        .footer-column {
            margin-bottom: 20px;
        }

        .footer-bottom {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            border-top: 1px solid rgba(255,255,255,0.2);
            padding-top: 20px;
            width: 100%;
        }

        .footer-links {
            display: flex;
            gap: 20px;
            margin-top: 10px;
        }

        /* Responsive */
        @media (max-width: 768px) {
            .hamburger {
                display: flex;
            }
            .nav-links {
                position: absolute;
                top: 60px;
                right: 0;
                height: calc(100vh - 60px);
                background: rgba(206, 40, 40, 0.95);
                flex-direction: column;
                align-items: flex-start;
                width: 200px;
                padding: 1rem;
                transform: translateX(100%);
            }
            .nav-links.open {
                transform: translateX(0);
            }
            .nav-links li {
                width: 100%;
                margin-bottom: 1rem;
            }
            .nav-links li a {
                width: 100%;
                padding: 0.8rem 1rem;
            }
            .hamburger span:nth-child(1) {
                transform: rotate(45deg) translate(5px, 5px);
            }
            .hamburger span:nth-child(2) {
                opacity: 0;
            }
            .hamburger span:nth-child(3) {
                transform: rotate(-45deg) translate(5px, -5px);
            }
            
            #hero .hero-image-wrapper {
                max-width: 280px;
                margin-top: 50px;
            }
            
            .footer-bottom {
                flex-direction: column;
                gap: 15px;
            }

            .footer-links {
                flex-direction: column;
                gap: 10px;
            }

            .footer-links a {
                font-size: 0.9rem;
            }
        }