html, body {
    margin: 0;
    padding: 0;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    background: #000;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
}

#unity-container {
    position: relative;
    width: 100vw;
    height: 100vh;
    /* Удерживаем соотношение 16:9 при любом разрешении, вписывая в экран */
    max-width: calc(100vh * (16 / 9));
    max-height: calc(100vw * (9 / 16));
    background: transparent;
}

#unity-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100% !important;
    height: 100% !important;
    display: block;
}

#unity-loading-bar {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.css-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid rgba(255, 255, 255, 0.1);
    border-left-color: #6366f1;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 20px;
}

#unity-progress-bar-empty {
    width: 240px;
    height: 6px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(4px);
}

#unity-progress-bar-full {
    width: 0%;
    height: 100%;
    background: linear-gradient(90deg, #6366f1 0%, #a855f7 100%);
    border-radius: 10px;
    transition: width 0.2s ease-out;
    box-shadow: 0 0 12px rgba(99, 102, 241, 0.6);
}

#loading-text {
    color: rgba(255, 255, 255, 0.5);
    font-size: 13px;
    margin-top: 10px;
    letter-spacing: 0.05em;
    font-weight: 500;
}

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