:root {
    --bg-start: #03050a;
    --bg-end: #0a0f1b;
    --text: #e6e6e6;
    --accent: #9dfffd;
}

html,
body {
    height: 100%;
}

body {
    margin: 0;
    background: #000000;
    font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Segoe UI Emoji";
    color: var(--text);
}

#app {
    position: relative;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
}

#scene {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    display: block;
}

#webcam {
    position: absolute;
    right: 16px;
    bottom: 16px;
    width: 160px;
    height: 120px;
    object-fit: cover;
    border-radius: 10px;
    opacity: 0.15;
    pointer-events: none;
}

.ui {
    position: absolute;
    left: 16px;
    bottom: 16px;
    display: flex;
    gap: 10px;
    align-items: center;
}

.ui button {
    appearance: none;
    border: 0;
    outline: 0;
    padding: 10px 16px;
    border-radius: 12px;
    color: #0c1017;
    background: linear-gradient(180deg, #ffffff, #d7fbff);
    box-shadow:
        0 10px 30px rgba(157, 255, 253, 0.25),
        inset 0 0 0 1px rgba(157, 255, 253, 0.5);
    font-weight: 600;
    letter-spacing: .02em;
    cursor: pointer;
    transition: transform .12s ease, box-shadow .2s ease;
}

.ui button:hover {
    transform: translateY(-1px);
}

.ui button:active {
    transform: translateY(1px);
}