:root {
    --bg: #000;
    --text: #fff;
    --muted: #9aa0a6;
    --panel: rgba(255, 255, 255, 0.06);
    --panel-border: rgba(255, 255, 255, 0.14);
}

html, body {
    height: 100%;
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: "Noto Sans", system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}

#starfield {
    position: fixed;
    inset: 0;
    display: block;
    z-index: 0;
}

.menu {
    position: relative;
    z-index: 1;
    max-width: 720px;
    margin: 8vh auto;
    padding: 24px;
    backdrop-filter: blur(6px);
    background: var(--panel);
    border: 1px solid var(--panel-border);
    border-radius: 16px;
}

.menu-header h1 {
    margin: 0 0 4px;
    font-size: 32px;
    letter-spacing: -0.02em;
}

.menu-header p {
    margin: 0 0 16px;
    color: var(--muted);
}

.game-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
}

@media (min-width: 640px) {
    .game-list { grid-template-columns: 1fr 1fr; }
}

.game-item {
    display: block;
    padding: 14px 16px;
    border-radius: 12px;
    border: 1px solid var(--panel-border);
    background: rgba(255, 255, 255, 0.03);
    text-decoration: none;
    color: inherit;
    transition: transform 120ms ease, border-color 120ms ease, background 120ms ease, box-shadow 120ms ease;
    will-change: transform;
}

.game-item:hover, .game-item:focus-visible {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 8px 24px rgba(255,255,255,0.08), 0 2px 8px rgba(255,255,255,0.06);
    border-color: rgba(255, 255, 255, 0.28);
    background: rgba(255, 255, 255, 0.06);
    outline: none;
}

.game-title {
    font-weight: 600;
    margin: 0 0 4px;
}

.game-desc {
    margin: 0;
    color: var(--muted);
    font-size: 14px;
}

.settings-bar {
    display: flex;
    gap: 8px;
    margin: 8px 0 16px;
}

.settings-btn {
    appearance: none;
    padding: 10px 14px;
    border-radius: 999px;
    border: 1px solid rgba(255,255,255,0.32);
    background: transparent;
    color: var(--text);
    font: 600 14px/1 "Noto Sans", system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
    transition: transform 120ms ease, border-color 120ms ease, background 120ms ease, box-shadow 120ms ease;
}

.settings-btn:hover, .settings-btn:focus-visible {
    background: rgba(255,255,255,0.10);
    border-color: rgba(255,255,255,0.50);
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(255,255,255,0.08), 0 2px 6px rgba(255,255,255,0.06);
    outline: none;
}