body {
    margin: 0;
    min-height: 100vh;
    background-color: #1a1a2e;
    font-family: 'Inter', sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #fff;
    height: 100vh; 
    width: 100vw; 
overflow-x: hidden;}

header {
    position: absolute;
    top: 20px;
    left: 20px;
    z-index: 20;
}

header a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    border-radius: 999px;
    background: rgba(27, 42, 88, 0.83);
    color: #fff;
    text-decoration: none;
    border: 1px solid rgba(204, 230, 255, 0.35);
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.35);
    font-size: min(22px, 2.6vw);
}

header a:hover {
    background: linear-gradient(135deg, #2f5ca2, #742d8a);
}


h1 {
    font-size: 2rem;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

p {
    font-size: 1rem;
    margin-bottom: 2rem;
}

.start {
    display: inline-block;
    padding: 12px 24px;
    color: #fff;
    font-weight: bold;
    font-size: 1rem;
    border-radius: 50px;
    background: linear-gradient(135deg, #6a0572, #4834d4);
    box-shadow: 0 4px 15px rgba(106, 5, 114, 0.3);
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    margin: 0.4rem;
    text-align: center;
}

.start:hover  {
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(0, 210, 211, 0.4);
    background: linear-gradient(135deg, #4834d4, #00d2d3);
    color: #1a1a2e;
}

.start:active {
    transform: scale(0.98);
}