body.breakout-page {
    justify-content: center;
    align-items: center;
    padding: clamp(10px, 2vw, 24px);
}

.arcade-shell {
    width: min(100%, 980px);
    display: grid;
    gap: clamp(0.75rem, 2vw, 1.1rem);
    padding: clamp(0.85rem, 2.4vw, 1.45rem);
    border: 1px solid rgba(148, 163, 184, 0.24);
    border-radius: var(--radius-lg);
    background: linear-gradient(145deg, rgba(15, 23, 42, 0.9), rgba(30, 41, 59, 0.84));
    color: #f8fafc;
    box-shadow: var(--shadow-soft);
    text-align: center;
}

.arcade-header {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 1rem;
    align-items: end;
    text-align: left;
}

.arcade-kicker {
    margin: 0 0 0.25rem;
    color: #93c5fd;
    font-weight: 900;
    font-size: 0.75rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

#title {
    color: #ffffff;
    text-shadow: 0 16px 44px rgba(96, 165, 250, 0.45);
}

.arcade-copy {
    margin: 0;
    color: #cbd5e1;
    max-width: 64ch;
}

.arcade-status {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.arcade-status span {
    padding: 0.55rem 0.75rem;
    border-radius: 999px;
    color: #dbeafe;
    background: rgba(59, 130, 246, 0.18);
    box-shadow: inset 0 0 0 1px rgba(147, 197, 253, 0.2);
    font-weight: 900;
}

.game-stage {
    display: grid;
    grid-template-columns: minmax(0, auto) minmax(220px, 0.36fr);
    gap: clamp(0.85rem, 3vw, 1.4rem);
    align-items: center;
    justify-content: center;
}

.canvas-frame {
    padding: clamp(0.45rem, 1.2vw, 0.85rem);
    border-radius: 28px;
    background: linear-gradient(145deg, rgba(59, 130, 246, 0.28), rgba(16, 185, 129, 0.12));
    box-shadow: inset 0 0 0 1px rgba(147, 197, 253, 0.18), 0 20px 50px rgba(0, 0, 0, 0.28);
}

#gameCanvas {
    display: block;
    width: min(66vmin, 620px);
    height: min(66vmin, 620px);
    max-width: 100%;
    border: 0;
    border-radius: 22px;
    background: radial-gradient(circle at 50% 24%, #ffffff 0%, #e0f2fe 50%, #dbeafe 100%);
    touch-action: none;
    cursor: none;
}

.arcade-panel {
    display: grid;
    gap: 0.85rem;
    align-content: center;
    text-align: left;
}

#startButton {
    width: 100%;
    min-height: 54px;
    padding: 0.85rem 1rem;
    font-size: 1.05rem;
    font-weight: 900;
    color: #082f49;
    background: linear-gradient(135deg, #facc15, #fb923c);
    box-shadow: 0 18px 38px rgba(251, 146, 60, 0.28);
}

.control-card {
    margin: 0;
    padding: 1rem;
    border-radius: 22px;
    color: #dbeafe;
    background: rgba(255, 255, 255, 0.08);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.1);
}

.control-card strong {
    color: #ffffff;
}

.touch-card {
    border: 1px solid rgba(16, 185, 129, 0.38);
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.22), rgba(59, 130, 246, 0.1));
}

kbd {
    display: inline-block;
    min-width: 1.8em;
    margin: 0 0.08rem;
    padding: 0.12rem 0.38rem;
    border-radius: 0.45rem;
    color: #0f172a;
    background: #e0f2fe;
    box-shadow: inset 0 -2px 0 rgba(15, 23, 42, 0.18);
    font-weight: 900;
    text-align: center;
}

@media (max-width: 760px) {
    body.breakout-page {
        justify-content: flex-start;
        padding: max(8px, env(safe-area-inset-top)) max(8px, env(safe-area-inset-right)) max(8px, env(safe-area-inset-bottom)) max(8px, env(safe-area-inset-left));
    }

    .arcade-shell {
        min-height: calc(100dvh - 16px);
        border-radius: 24px;
        padding: 0.62rem;
        gap: 0.52rem;
    }

    .arcade-header {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 0.34rem;
    }

    .arcade-copy {
        display: none;
    }

    .arcade-status {
        justify-content: center;
    }

    .arcade-status span {
        padding: 0.42rem 0.58rem;
        font-size: 0.84rem;
    }

    .game-stage {
        grid-template-columns: 1fr;
        gap: 0.48rem;
    }

    #gameCanvas {
        width: min(calc(100vw - 34px), calc(100dvh - 218px));
        height: min(calc(100vw - 34px), calc(100dvh - 218px));
        cursor: default;
    }

    .arcade-panel {
        display: flex;
        flex-direction: column;
        gap: 0.44rem;
        text-align: center;
    }

    #startButton {
        order: 1;
        min-height: 44px;
        padding: 0.62rem 0.85rem;
        font-size: 0.98rem;
    }

    .touch-card {
        order: 2;
    }

    .desktop-card {
        order: 3;
        display: none;
    }

    .control-card {
        font-size: 0.84rem;
        padding: 0.58rem 0.68rem;
        border-radius: 16px;
        line-height: 1.34;
    }
}

@media (max-width: 380px) {
    .arcade-shell {
        padding: 0.55rem;
        gap: 0.5rem;
    }

    .arcade-kicker {
        display: none;
    }

    #title {
        font-size: 1.45rem;
    }

    .arcade-status span {
        padding: 0.42rem 0.55rem;
        font-size: 0.82rem;
    }

    #gameCanvas {
        width: min(calc(100vw - 26px), calc(100dvh - 202px));
        height: min(calc(100vw - 26px), calc(100dvh - 202px));
    }

    .control-card {
        font-size: 0.78rem;
        padding: 0.48rem 0.56rem;
    }
}