/* --- ARCADE SYSTEM STYLES --- */
:root {
    --arcade-bg: #f9f9f9;
    --arcade-text: #111111;
    --portal-color: #10b981;
}

body.arcade-mode {
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-color: var(--arcade-bg);
    color: var(--arcade-text);
    font-family: 'Inter', sans-serif;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Strip any portfolio layout constraints so the canvas can map 100vw exactly */
body.arcade-mode main#swup {
    padding: 0 !important;
    margin: 0 !important;
    max-width: 100vw !important;
    overflow-x: hidden;
}

/* WARP DIMENSION (Swapped Colors) */
body.arcade-mode.warp-active {
    --arcade-bg: #111111;
    --arcade-text: #f9f9f9;
}

body.arcade-mode #arcade-btn-global {
    display: none !important;
}

#arcade-container {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 100vw !important;
    height: 100dvh !important;
    padding: 0 !important;
    margin: 0 !important;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    user-select: none;
    background-color: transparent;
    overflow: hidden; /* No scrollbars on stretch */
    z-index: 1; /* Below header */
}

#game-canvas {
    display: block;
    background: transparent;
    cursor: pointer;
    width: 100vw;
    height: 100dvh;
    /* Prevent pixel blurring on high-DPR mobile screens */
    image-rendering: pixelated;
    image-rendering: crisp-edges;
}

/* SCREEN SHAKE */
@keyframes shake {
    0% { transform: translate(1px, 1px) rotate(0deg); }
    10% { transform: translate(-1px, -2px) rotate(-1deg); }
    20% { transform: translate(-3px, 0px) rotate(1deg); }
    30% { transform: translate(3px, 2px) rotate(0deg); }
    40% { transform: translate(1px, -1px) rotate(1deg); }
    50% { transform: translate(-1px, 2px) rotate(-1deg); }
    60% { transform: translate(-3px, 1px) rotate(0deg); }
    70% { transform: translate(3px, 1px) rotate(-1deg); }
    80% { transform: translate(-1px, -1px) rotate(1deg); }
    90% { transform: translate(1px, 2px) rotate(0deg); }
    100% { transform: translate(1px, -2px) rotate(-1deg); }
}

.shake {
    animation: shake 0.2s;
    animation-iteration-count: 1;
}

/* Mobile: push arcade button down from bottom edge */
@media (max-width: 768px) {
    #arcade-btn-global {
        bottom: calc(30px + 15vh) !important;
    }
}