:root {
        --glass-bg: rgba(255,255,255,0.015);
        --glass-border: rgba(255,255,255,0.1);
        --glass-highlight: rgba(255,255,255,0.15);
    }
    
    * {
        font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
        scroll-behavior: smooth;
    }
    
    body {
        background: #000;
        overflow-x: hidden;
    }
    
    /* Background Video */
    #bg-video {
        position: fixed;
        top: 0;
        left: 0;
        width: 100vw;
        height: 100vh;
        object-fit: cover;
        z-index: -2;
        pointer-events: none;
    }
    
    #video-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100vw;
        height: 100vh;
        background: linear-gradient(180deg, rgba(0,0,0,0.2) 0%, rgba(0,0,0,0.4) 100%);
        z-index: -1;
        pointer-events: none;
    }

	.watermark {
            position: fixed;
            right: 16%;
            bottom: -8px;
            padding: 8px 10px;
            background: ;transparent: ;
            color: #fff;
            font-size: 12px;
            border-radius: none;
            z-index: 40;
        }
    
    /* header */
        header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px 18px 6px;
            border-bottom: 5px solid rgba(0, 0, 0, 0.06);
            position: sticky;
            top: 0px;
            --filter-glass3d: blur(3px) brightness(1.17) saturate(1); 
  --color-glass3d: transparent; 
  --noise-glass3d: url("https://www.transparenttextures.com/patterns/egg-shell.png");
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: var(--filter-glass3d); 
  backdrop-filter: var(--filter-glass3d); 
  background-color: var(--color-glass3d); 
  background-image: var(--noise-glass3d); 
  background-size: 100px; 
  background-repeat: repeat; 
            border: 1px solid rgba(255, 255, 255, 0.2);
            box-shadow:  
    0 0 0.75px hsl(205 20% 10% / 0.2), 
    0.7px 0.8px 1.2px -0.4px hsl(205 20% 10% / 0.1), 
    1.3px 1.5px 2.2px -0.8px hsl(205 20% 10% / 0.1), 
    2.3px 2.6px 3.9px -1.2px hsl(205 20% 10% / 0.1), 
    3.9px 4.4px 6.6px -1.7px hsl(205 20% 10% / 0.1), 
    6.5px 7.2px 10.9px -2.1px hsl(205 20% 10% / 0.1), 
    8px 9px 14px -2.5px hsl(205 20% 10% / 0.2);
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
            color: #fff;
        }

        .brand .logo {
            width: 40px;
            height: 40px;
			margin-left: 0;
            border-radius: 10px;
            background: transparent;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 14px;
        }

        nav {
            display: flex;
            gap: 18px;
            align-items: center;
        }

        nav a {
            text-decoration: none;
            color: #fff;
            padding: 6px 8px;
            border-radius: 8px;
            font-size: 20px;
			top: 10px;
        }

        nav a.cta {
            background: #transparent;
            color: #fff;
            padding: 8px 14px;
            font-weight: 600;
        }

#transparentTimeCityWidget {
        position: fixed;
        top: 10px;
        right: 10px;
        background: transparent;
        /* nền hoàn toàn trong suốt */
        border: none;
        /* không viền */
        box-shadow: none;
        /* không bóng */
        font-family: Arial, sans-serif;
        font-size: 14px;
        z-index: 9999;
        text-align: right;
        /* chữ sát bên phải */
        pointer-events: none;
        /* không chặn click vào web */
    }

    #trans-time {
        font-weight: bold;
        font-size: 18px;
        color: #fff;
        /* màu chữ, có thể thay theo web */
        display: block;
    }

    #trans-city {
        font-size: 12px;
        color: #fff;
        display: block;
    }

    /* Mobile tối ưu */
    @media screen and (max-width: 480px) {
        #transparentTimeCityWidget {
            font-size: 12px;
        }
    }

    
    .ultra-glass-bar.scrolled {
        box-shadow: inset 0 0.5px 0 var(--glass-highlight), 
                    inset 0 -0.5px 0 rgba(0,0,0,0.05),
                    0 8px 32px rgba(0,0,0,0.12);
    }
    
    /* Glass card material */
    .glass-card {
        --filter-glass3d: blur(3px) brightness(1.17) saturate(1); 
  --color-glass3d: transparent; 
  --noise-glass3d: url("https://www.transparenttextures.com/patterns/egg-shell.png");
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: var(--filter-glass3d); 
  backdrop-filter: var(--filter-glass3d); 
  background-color: var(--color-glass3d); 
  background-image: var(--noise-glass3d); 
  background-size: 100px; 
  background-repeat: repeat; 
            border: 1px solid rgba(255, 255, 255, 0.2);
            box-shadow:  
    0 0 0.75px hsl(205 20% 10% / 0.2), 
    0.7px 0.8px 1.2px -0.4px hsl(205 20% 10% / 0.1), 
    1.3px 1.5px 2.2px -0.8px hsl(205 20% 10% / 0.1), 
    2.3px 2.6px 3.9px -1.2px hsl(205 20% 10% / 0.1), 
    3.9px 4.4px 6.6px -1.7px hsl(205 20% 10% / 0.1), 
    6.5px 7.2px 10.9px -2.1px hsl(205 20% 10% / 0.1), 
    8px 9px 14px -2.5px hsl(205 20% 10% / 0.2);
		z-index: 999;
    }
    
    .glass-card-hover {
        transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    }
    
    .glass-card-hover:hover {
        background: rgba(255,255,255,0.015);
        border-color: rgba(255,255,255,0.15);
        transform: translateY(-4px);
        box-shadow: inset 0 0.5px 0 rgba(255,255,255,0.2),
                    0 20px 60px rgba(0,0,0,0.15);
    }
    
    /* Text gradient effect */
    .text-gradient {
        background: linear-gradient(135deg, #fff 0%, rgba(255,255,255,0.7) 100%);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }
    
    .glow-text {
        text-shadow: 0 0 40px rgba(255,255,255,0.3);
    }
    
    /* Button style */
    .btn-primary {
        background-color: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            box-shadow: 0 20px 30px rgba(0,0,0,0.16);
        transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    }
    
    .btn-primary:hover {
        background: rgba(255,255,255,0.15);
        border-color: rgba(255,255,255,0.3);
        box-shadow: 0 8px 32px rgba(255,255,255,0.1);
        transform: scale(1.02);
    }
    
    .btn-primary:active {
        transform: scale(0.98);
    }
    
    /* Fade in animation */
    @keyframes fadeInUp {
        from {
            opacity: 0;
            transform: translateY(30px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
    
    .fade-in-up {
        animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
        opacity: 0;
    }
    
    .delay-1 { animation-delay: 0.1s; }
    .delay-2 { animation-delay: 0.2s; }
    .delay-3 { animation-delay: 0.3s; }
    .delay-4 { animation-delay: 0.4s; }
    
    /* Spec grid */
    .spec-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 1rem;
    }
    
    @media (max-width: 768px) {
        .ultra-glass-bar {
            left: 12px;
            right: 12px;
            width: calc(100% - 24px);
            height: 52px;
        }
        .spec-grid {
            grid-template-columns: repeat(2, 1fr);
        }
    }

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

body{
    font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
    background:#f5f5f7;
    padding-bottom:110px;
}

:root{
  --vt-red: #EE0033;
  --vt-bg: #ffffff;
  --vt-text: #1a1a1a;
  --vt-muted: #8a8a8e;
}

.vt-menu-wrap{
  font-family: Inter, system-ui, -apple-system, sans-serif;
}

/* === DESKTOP HEADER === */
.vt-menu-desktop{
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  background: #fff;
  border-bottom: 1px solid #f0f0f0;
  position: sticky;
  top: 0;
  z-index: 50;
}

.vt-menu-desktop .vt-logo{
  font-weight: 800;
  font-size: 18px;
  letter-spacing: -0.5px;
}

.vt-menu-desktop .vt-links{
  display: flex;
  gap: 28px;
}

.vt-menu-desktop a{
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--vt-muted);
  font-weight: 500;
  font-size: 14px;
  transition: all 0.2s ease;
}

.vt-menu-desktop a.active,
.vt-menu-desktop a:hover{
  color: var(--vt-red);
}

.vt-menu-desktop a svg{
  width: 20px;
  height: 20px;
}