/**
 * style.css
 */
body {
    margin: 0;
    overflow: hidden;
    background: #111;
    font-family: 'Outfit', sans-serif;
    color: white;
}

#glCanvas {
    width: 100vw;
    height: 100vh;
    display: block;
}

.ui {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 2rem;
    box-sizing: border-box;
}

.header {
    text-align: center;
}

.title {
    font-size: 2rem;
    font-weight: 700;
    text-shadow: 0 2px 10px rgba(0,0,0,0.5);
    margin: 0;
}

.subtitle {
    font-size: 1rem;
    color: rgba(255,255,255,0.7);
}

.footer {
    display: flex;
    justify-content: center;
    gap: 1rem;
    pointer-events: auto;
}

.mode-box {
    width: 80px;
    height: 80px;
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 0.2s, background 0.2s;
    border: 1px solid rgba(255,255,255,0.2);
}

.mode-box:hover {
    background: rgba(255,255,255,0.2);
    transform: translateY(-5px);
}

.mode-box.active {
    background: rgba(255,255,255,0.3);
    border-color: #fff;
}

.mode-box span {
    font-size: 0.8rem;
    font-weight: 600;
}