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

body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0a0a1a 0%, #0d1b2a 30%, #1a0a2e 60%, #0a0a1a 100%);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: #e0e0e0;
    padding: 20px;
}

.card {
    background: rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 24px;
    padding: 48px 40px;
    text-align: center;
    max-width: 380px;
    width: 100%;
    box-shadow:
        0 8px 32px rgba(0, 0, 0, 0.4),
        0 0 80px rgba(0, 210, 255, 0.04),
        0 0 80px rgba(160, 50, 255, 0.04);
}

.avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    margin-bottom: 20px;
    box-shadow: 0 0 20px rgba(0, 210, 255, 0.15);
}

.name {
    font-size: 24px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 4px;
}

.username {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.4);
    margin-bottom: 20px;
}

.description {
    font-size: 15px;
    line-height: 1.5;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 32px;
}

.btn {
    display: inline-block;
    padding: 14px 48px;
    background: linear-gradient(135deg, #00d2ff 0%, #7b2ff7 100%);
    color: #ffffff;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 12px;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 4px 20px rgba(0, 210, 255, 0.25);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 28px rgba(0, 210, 255, 0.35);
}

.btn:active {
    transform: translateY(0);
}

@media (max-width: 440px) {
    .card {
        padding: 36px 24px;
        border-radius: 20px;
    }

    .name {
        font-size: 22px;
    }
}