body {
    margin: 0;
    padding: 0;
    background: #f8f9fa;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    font-family: 'Inter', sans-serif;
}

.black-box {
    background: white;
    border-radius: 15px;
    padding: 40px;
    width: 320px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 0 30px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.black-box:hover {
    transform: translateY(-5px);
}

.light-ring {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 15px;
    border: 2px solid transparent;
    border-top-color: #dc3545;
    border-right-color: #dc3545;
    border-bottom-color: #dc3545;
    border-left-color: #dc3545;
    animation: rotate 3s linear infinite;
    pointer-events: none;
    opacity: 0.7;
}

.avatar-container {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
}

.avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid #dc3545;
    box-shadow: 0 0 20px rgba(220, 53, 69, 0.3);
    animation: float 4s ease-in-out infinite;
    transition: all 0.3s;
}

.avatar:hover {
    transform: scale(1.05);
}

.title {
    color: #212529;
    text-align: center;
    margin-bottom: 20px;
    font-size: 24px;
    font-weight: 600;
}

.info-box {
    background: #f8f9fa;
    border-radius: 10px;
    padding: 15px;
    margin-bottom: 20px;
    color: #495057;
    font-size: 14px;
    border-left: 3px solid #dc3545;
}

.info-box ul {
    padding-left: 20px;
    margin: 10px 0 0 0;
}

.info-box li {
    margin-bottom: 5px;
}

.dev-info {
    text-align: center;
    margin-bottom: 20px;
    color: #6c757d;
    font-size: 14px;
}

.dev-info strong {
    color: #dc3545;
}

.button-container {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
}

.start-button {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px 25px;
    background: #dc3545;
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 500;
    gap: 10px;
    width: 100%;
    max-width: 200px;
    transition: all 0.3s;
    box-shadow: 0 4px 15px rgba(220, 53, 69, 0.3);
    border: none;
    cursor: pointer;
}

.start-button:hover {
    background: #c82333;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(220, 53, 69, 0.4);
}

.start-button:active {
    transform: translateY(1px);
    box-shadow: 0 2px 10px rgba(220, 53, 69, 0.2);
}

.start-button i {
    font-size: 18px;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 15px;
}

.social-links a {
    color: #6c757d;
    font-size: 20px;
    transition: all 0.3s;
}

.social-links a:hover {
    color: #dc3545;
    transform: translateY(-3px);
}

@keyframes float {
    0% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0); }
}

@keyframes rotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}