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

body {
    background: #000000;
    color: #ffffff;
    font-family: 'Inter', sans-serif;
    height: 100vh;
    overflow: hidden;
    position: relative;
}

.header-brand {
    position: absolute;
    top: 30px;
    left: 30px;
    z-index: 10;
}

.header-brand h1 {
    font-family: 'Rubik Bubbles', cursive;
    font-size: 2rem;
    color: #ffffff;
    margin-bottom: 0.5rem;
    text-shadow: 
        0 0 10px rgba(59, 130, 246, 0.8),
        0 0 20px rgba(59, 130, 246, 0.6),
        0 0 30px rgba(59, 130, 246, 0.4);
    animation: glow 2s ease-in-out infinite alternate;
}

@keyframes glow {
    from { 
        text-shadow: 0 0 10px rgba(59, 130, 246, 0.8), 0 0 20px rgba(59, 130, 246, 0.6), 0 0 30px rgba(59, 130, 246, 0.4); 
    }
    to { 
        text-shadow: 0 0 15px rgba(59, 130, 246, 1), 0 0 25px rgba(59, 130, 246, 0.8), 0 0 35px rgba(59, 130, 246, 0.6); 
    }
}

.powered-by {
    font-size: 0.9rem;
    opacity: 0.6;
    letter-spacing: 0.2em;
    font-weight: 200;
    color: #ffffff;
    font-style: italic;
}

.container {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: translateY(-50px);
}

.logo-container {
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-container svg {
    width: 800px;
    height: auto;
    max-width: 100vw;
}

.bottom-nav {
    position: absolute;
    bottom: 80px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
}

.mode-instruction {
    font-size: 1rem;
    opacity: 0.8;
    margin-bottom: 2rem;
    letter-spacing: 0.1em;
    color: #ffffff;
}

.mode-buttons {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.mode-btn {
    color: #ffffff;
    text-decoration: none;
    padding: 12px 24px;
    border: 2px solid rgba(59, 130, 246, 0.5);
    background: transparent;
    transition: all 0.3s ease;
    letter-spacing: 0.1em;
    font-size: 1rem;
}

.mode-btn:hover {
    color: rgba(59, 130, 246, 1);
    border-color: rgba(59, 130, 246, 1);
    background: rgba(59, 130, 246, 0.1);
    box-shadow: 0 0 15px rgba(59, 130, 246, 0.3);
    text-shadow: 0 0 10px rgba(59, 130, 246, 0.5);
}

.separator {
    color: rgba(59, 130, 246, 0.6);
    font-size: 1.2rem;
    margin: 0 0.5rem;
}

@media (max-width: 768px) {
    .logo-container svg {
        width: 400px;
        max-width: 90vw;
    }
    
    .header-brand h1 {
        font-size: 1.5rem;
    }
    
    .header-brand {
        top: 20px;
        left: 20px;
    }
}

.enter-button {
    display: flex;
    align-items: center;
    justify-content: center;
}

.enter-btn {
    color: #00FFFF;
    text-decoration: none;
    padding: 16px 32px;
    border: 2px solid transparent;
    background: linear-gradient(45deg, #00FFFF, #0EA5E9, #3B82F6);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    border-image: linear-gradient(45deg, #00FFFF, #0EA5E9, #3B82F6) 1;
    transition: all 0.3s ease;
    letter-spacing: 0.15em;
    font-size: 1.2rem;
    font-weight: 600;
    text-transform: uppercase;
    position: relative;
    overflow: hidden;
}

.enter-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(0,255,255,0.1), rgba(14,165,233,0.1), rgba(59,130,246,0.1));
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: -1;
}

.enter-btn:hover::before {
    opacity: 1;
}

.enter-btn:hover {
    box-shadow: 0 0 20px rgba(0,255,255,0.4), 0 0 40px rgba(14,165,233,0.2);
    text-shadow: 0 0 10px rgba(0,255,255,0.8);
    transform: translateY(-2px);
}