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

a {
    outline: none;
    border: none;
    -webkit-tap-highlight-color: transparent;
}

:root {
    --purple: #9431ce;
    --black: #000000;
    --purple-glow: rgba(148, 49, 206, 0.4);
}

body {
    font-family: 'Rajdhani', sans-serif;
    background: var(--black);
    color: white;
    height: 100vh;
    display: flex;
    justify-content: center;
    overflow: hidden;
}

.bg-animation {
    position: fixed;
    inset: 0;
    z-index: 0;
}

.bg-animation::before {
    content: '';
    position: absolute;
    width: 200%;
    height: 200%;
    top: -50%;
    left: -50%;
    background:
        radial-gradient(circle at 20% 50%, var(--purple-glow) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, var(--purple-glow) 0%, transparent 50%);
    animation: bgRotate 20s linear infinite;
}

@keyframes bgRotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.container {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 520px;
    height: 100%;
    padding: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transform-origin: top center;
}

.logo {
    width: 250px;
    margin-bottom: 15px;
}

.logo img {
    width: 100%;
    display: block;
}

.main-buttons {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.btn-main {
    width: 100%;
    line-height: 0;
    transition: all 0.3s;
    display: block;
}

.btn-main:hover {
    transform: translateY(-3px);
    filter: drop-shadow(0 8px 25px var(--purple-glow));
}

.btn-media {
    width: 100%;
    height: auto;
    display: block;
    object-fit: contain;
}

@media (max-height: 800px) {
    .container { transform: scale(0.95); }
    .logo { width: 220px; }
}

@media (max-height: 700px) {
    .container { transform: scale(0.9); }
    .logo { width: 200px; }
}

@media (max-height: 620px) {
    .container { transform: scale(0.85); }
    .logo { width: 180px; }
}

@media (max-height: 560px) {
    .container { transform: scale(0.8); }
    .logo { width: 160px; }
}