body {
    font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Arial, "Apple Color Emoji", "Segoe UI Emoji";
    background: linear-gradient(135deg, #0f0f11 0%, #1a1a1d 100%);
    color: #e6edf3;
    margin: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.container {
    background: #18181b;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.6);
    padding: 60px;
    max-width: 500px;
    width: 100%;
    text-align: center;
    position: relative;
    border: 2px solid #3b82f6;
}

@keyframes borderGlow {
    0% {
        border-color: #1e40af;
    }
    25% {
        border-color: #3b82f6;
    }
    50% {
        border-color: #60a5fa;
    }
    75% {
        border-color: #93c5fd;
    }
    100% {
        border-color: #1e40af;
    }
}

.container {
    animation: borderGlow 3s linear infinite;
}

h1 {
    color: #e6edf3;
    margin: 0 0 40px;
    font-size: 42px;
    font-weight: 600;
    position: relative;
    z-index: 1;
}

.subtitle {
    color: #8b949e;
    margin-bottom: 40px;
    font-size: 18px;
    line-height: 1.5;
    position: relative;
    z-index: 1;
}

.login-button {
    background: #5865F2;
    color: white;
    padding: 18px 40px;
    border-radius: 12px;
    text-decoration: none;
    font-size: 20px;
    font-weight: 500;
    display: inline-block;
    transition: all 0.2s ease;
    border: none;
    cursor: pointer;
    position: relative;
    z-index: 1;
    margin: 10px 0;
    width: 100%;
    max-width: 300px;
}

.login-button:hover {
    background: #4752C4;
    transform: translateY(-2px);
}

.login-button.custom-rank {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-button.custom-rank:hover {
    background: linear-gradient(135deg, #5568d3 0%, #63408a 100%);
}