@import url('https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@500;600;700&family=IBM+Plex+Mono:wght@400;500&family=Press+Start+2P&display=swap');
:root { color-scheme: dark; --page: #030506; --ink: #f6f7f8; --muted: #a8afb3; --line: #2d3e42; --accent: #8ef5ac; --display: 'Barlow Condensed', 'Arial Narrow', sans-serif; --mono: 'IBM Plex Mono', monospace; --edge: max(24px, env(safe-area-inset-left)); }
* { box-sizing: border-box; }
html, body { width: 100%; height: 100%; overflow: hidden; }
body { margin: 0; background: var(--page); color: var(--ink); font: 16px/1.6 Arial, sans-serif; }
h1, h2, h3, p { margin: 0; }
a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; }
button { cursor: pointer; color: inherit; }
button, select, a, summary { -webkit-tap-highlight-color: transparent; }
button:disabled { cursor: default; }
[hidden] { display: none !important; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }
.skip-link { position: fixed; top: -100px; left: 16px; z-index: 100; padding: 12px; background: #000; }
.skip-link:focus { top: 12px; }
.arcade-viewport, .game-panel, .stage-shell, .stage-frame, .stage { width: 100%; height: 100%; }
.arcade-viewport { position: relative; height: 100svh; height: 100dvh; overflow: hidden; isolation: isolate; }
.game-panel { position: absolute; inset: 0; }
.stage { position: relative; overflow: hidden; background: #09151c; }
#gameCanvas { display: block; width: 100%; height: 100%; image-rendering: pixelated; touch-action: none; outline-offset: -3px; }
.wordmark { position: absolute; z-index: 6; left: var(--edge); top: max(22px, env(safe-area-inset-top)); font: 600 1.65rem/1 var(--display); letter-spacing: .05em; text-shadow: 0 2px 12px #000; }
.wordmark span { color: var(--accent); }
.runner-hud { position: absolute; z-index: 2; top: calc(max(22px, env(safe-area-inset-top)) + 38px); left: var(--edge); display: grid; gap: 4px; pointer-events: none; font: .875rem/1.5 var(--mono); letter-spacing: .06em; text-shadow: 0 2px 8px #000; }
#worldChip { color: var(--accent); }
#runnerMode:empty { display: none; }
/* One floating control. Nothing reserves a strip of the playing surface. */
.portal-trigger { position: absolute; z-index: 7; top: max(16px, env(safe-area-inset-top)); right: max(20px, env(safe-area-inset-right)); display: flex; align-items: center; gap: 12px; min-height: 56px; padding: 0 16px 0 7px; border: 1px solid #8ef5ac65; border-radius: 40px; background: #030a10bf; backdrop-filter: blur(12px); font: .875rem var(--mono); letter-spacing: .04em; transition: border-color .2s, background .2s; }
.portal-trigger:hover { background: #112820; border-color: var(--accent); }
.portal-trigger kbd { margin-left: 5px; padding: 2px 4px; border: 1px solid #506b61; font: inherit; color: var(--accent); }
.portal-orbit { display: block; position: relative; width: 40px; height: 40px; border: 1px solid #8ef5ac70; border-radius: 50%; transform: rotate(-30deg); transition: transform .4s; }
.portal-orbit::before { content: ''; position: absolute; inset: 9px; border: 1px solid var(--accent); border-radius: 50%; }
.portal-orbit i { position: absolute; width: 6px; height: 6px; background: var(--accent); border-radius: 50%; }
.portal-orbit i:nth-child(1) { top: -3px; left: 17px; }
.portal-orbit i:nth-child(2) { bottom: 5px; right: 0; }
.portal-orbit i:nth-child(3) { bottom: 5px; left: 0; }
.portal-trigger:hover .portal-orbit { transform: rotate(90deg); }
dialog { color: var(--ink); border: 1px solid #314b48; background: #071011; }
dialog::backdrop { background: #010507c9; backdrop-filter: blur(10px); }
.game-portal { width: min(1040px, calc(100% - 40px)); max-height: calc(100dvh - 40px); padding: clamp(22px, 4vw, 44px); overflow-y: auto; overscroll-behavior: contain; box-shadow: 0 30px 120px #000a; }
.game-portal[open] { animation: portal-arrive .25s ease-out; }
.portal-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; }
.eyebrow { color: var(--accent); font: .75rem var(--mono); letter-spacing: .12em; margin-bottom: 12px; }
.portal-heading h1 { font: 600 clamp(2rem, 4vw, 3.5rem)/1 var(--display); }
.portal-close { flex: 0 0 44px; height: 44px; border: 1px solid var(--line); background: transparent; font: 2rem/1 Arial, sans-serif; }
.portal-close:hover { border-color: var(--accent); }
.game-deck { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin: 45px 10px 35px; perspective: 1000px; }
.game-card { position: relative; display: flex; flex-direction: column; min-width: 0; padding: 18px; text-align: left; border: 1px solid #2c4645; background: #0a1518; transform: rotate(var(--tilt, 0deg)); transition: transform .25s, border-color .25s, box-shadow .25s; }
.game-card:first-child { --tilt: -5deg; }
.game-card:last-child { --tilt: 5deg; }
.game-card.selected { border-color: var(--accent); box-shadow: inset 0 0 0 1px #8ef5ac45; }
.game-card:hover, .game-card:focus-visible { z-index: 2; transform: translateY(-10px) rotate(0); border-color: var(--accent); box-shadow: 0 18px 36px #0007; }
.card-number { min-width: 0; overflow-wrap: anywhere; color: var(--accent); font: .75rem var(--mono); letter-spacing: .04em; }
.card-name { font: 600 clamp(1.9rem, 3.5vw, 3rem)/.95 var(--display); letter-spacing: .02em; margin: 20px 0; }
.card-action { display: flex; justify-content: space-between; gap: 8px; align-items: center; color: #bccdcd; font: .75rem var(--mono); border-top: 1px solid var(--line); padding-top: 12px; margin-top: auto; }
.card-action > span { font-size: 1.1rem; color: var(--accent); }
.card-scene { display: block; position: relative; width: 100%; height: 125px; margin-top: 15px; overflow: hidden; background: #030b10; }
.card-scene { object-fit: cover; image-rendering: pixelated; }
.portal-settings { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; border-top: 1px solid var(--line); padding-top: 22px; }
.portal-settings label { display: flex; align-items: center; gap: 10px; margin-right: auto; color: var(--muted); font-size: .875rem; }
#runnerSettings { display: flex; flex-wrap: wrap; gap: 10px; }
select, .tool-button { min-height: 44px; padding: 10px 12px; border: 1px solid var(--line); border-radius: 0; background: transparent; color: var(--ink); font-size: .875rem; }
select option { background: #0a1013; }
.tool-button:hover, select:hover { border-color: var(--accent); }
#muteBtn { display: inline-flex; align-items: center; gap: 8px; }
#muteIcon { width: 18px; height: 18px; fill: currentColor; }
.mode-description { color: var(--muted); font-size: .875rem; margin-top: 12px; }
.controls-box, .portal-links { margin-top: 18px; border-top: 1px solid var(--line); font-size: .875rem; color: var(--muted); }
summary { cursor: pointer; padding: 14px 0; color: var(--ink); }
.controls-box p { margin-bottom: 8px; }
.link-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px 24px; }
.link-grid a { display: grid; grid-template-columns: 1fr auto; padding: 10px 0; border-bottom: 1px solid var(--line); }
.link-grid a > span:first-child { color: var(--ink); font: 500 1.25rem var(--display); }
.link-grid small { grid-column: 1; overflow-wrap: anywhere; }
.link-grid a > span:last-child { grid-column: 2; grid-row: 1 / 3; align-self: center; color: var(--accent); }
.link-grid a:hover { border-color: var(--accent); }
.portal-footnote { margin-top: 22px; color: #758c86; font: .75rem var(--mono); }
.overlay { display: none; position: absolute; inset: 0; z-index: 5; padding: 110px 24px 30px; align-items: center; justify-content: center; background: #03080edb; overflow-y: auto; }
.overlay.active { display: flex; }
.overlay-content { width: min(660px, 100%); margin-block: auto; text-align: center; }
.overlay-title, .link-dialog h2 { font: 600 clamp(2rem, 5vw, 4rem)/1 var(--display); margin-bottom: 16px; }
.overlay-sub { color: #bfc7cc; max-width: 540px; font-size: 1rem; margin-inline: auto; }
.btn-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 22px; }
.close-btn, .ghost-btn, .button { display: inline-flex; justify-content: center; align-items: center; min-height: 48px; padding: 12px 22px; border: 1px solid #dbe9e2; border-radius: 0; background: transparent; color: #fff; font: 500 .875rem var(--mono); text-transform: uppercase; }
.close-btn:hover, .button:hover { color: #06110a; border-color: var(--accent); background: var(--accent); }
.ghost-btn { border-color: #697479; color: #c1cace; }.ghost-btn:hover { border-color: #fff; }
.character-options { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; margin-top: 22px; }
.character-option { display: flex; flex-direction: column; align-items: center; gap: 14px; width: 120px; padding: 18px 12px; background: #101c20; border: 1px solid #3a4a4d; }
.character-option.selected { border-color: var(--accent); background: #13271f; }.character-option:hover { border-color: #fff; }
.character-option canvas { image-rendering: pixelated; }.character-name { font: .875rem var(--mono); }
.mute-row { display: flex; align-items: center; justify-content: center; gap: 10px; margin-top: 18px; color: var(--muted); font-size: .875rem; }
input[type=checkbox] { width: 17px; height: 17px; accent-color: var(--accent); }
.site-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 22px; }
.site-card { padding: 18px 12px; border: 1px solid #35464c; }.site-card:hover { border-color: var(--accent); }
.site-name { font: 500 1rem var(--display); text-transform: uppercase; }.site-desc { color: var(--muted); font-size: .75rem; margin-top: 4px; }
.link-dialog { width: min(520px, calc(100% - 32px)); max-height: calc(100dvh - 32px); padding: clamp(24px, 5vw, 42px); text-align: center; }
#linkAddress { overflow-wrap: anywhere; color: var(--accent); font: .8rem var(--mono); }.link-help { margin-top: 20px; font-size: .875rem; color: var(--muted); }
.mobile-controls { display: none; position: absolute; z-index: 4; left: max(18px, env(safe-area-inset-left)); right: max(18px, env(safe-area-inset-right)); bottom: max(15px, env(safe-area-inset-bottom)); justify-content: space-between; align-items: flex-end; pointer-events: none; }
.mobile-controls button { pointer-events: auto; }.game-panel:has(.overlay.active) .mobile-controls { visibility: hidden; }
.d-pad, .action-buttons { display: flex; gap: 10px; }.d-pad .up { display: none; }
.control-btn { width: 54px; height: 54px; background: #081411b3; border: 1px solid #8ef5ac70; border-radius: 50%; color: #d6fbe2; font: 1.2rem var(--mono); touch-action: none; user-select: none; -webkit-user-select: none; }
.control-btn:active { background: #284e37; }.jump-btn { width: 62px; height: 62px; }.jump-btn, .fire-btn { font-size: .75rem; }
.mini-panel { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: max(105px, env(safe-area-inset-top)) max(24px, env(safe-area-inset-right)) max(24px, env(safe-area-inset-bottom)) max(24px, env(safe-area-inset-left)); background: radial-gradient(ellipse at 50% 60%, #12302b, #04090d 75%); gap: 18px; overflow-y: auto; }
.mini-hud { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 12px 24px; font: .75rem var(--mono); }
#miniTitle { font: 600 2rem var(--display); letter-spacing: .025em; }#miniScore { color: var(--accent); }#miniBest { color: var(--muted); }
.snake-surface { width: min(100%, 1080px, calc((100dvh - 260px) * 1.5)); flex-shrink: 0; border: 1px solid #386b55; box-shadow: 0 0 60px #0006; }
#snakeCanvas { display: block; width: 100%; height: auto; touch-action: none; }
.memory-surface { width: min(100%, 660px, calc(100dvh - 255px)); flex-shrink: 0; }
.memory-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.memory-pad { aspect-ratio: 1.35; min-height: 44px; border: 1px solid #385a48; border-radius: 0; color: #d6eadc; background: #0a1c15; font: 1.3rem var(--mono); }
.memory-pad:disabled { opacity: 1; }.memory-pad.lit { background: var(--accent); color: #06110a; border-color: #d1ffde; box-shadow: 0 0 36px #8ef5ac30; }
.mini-message { display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 14px; text-align: center; }
.mini-message p { font-size: .85rem; color: #bfccd2; }
.snake-controls { display: flex; justify-content: center; gap: 12px; }
.snake-controls button { width: 48px; height: 44px; background: #102119; border: 1px solid #385a48; border-radius: 50%; color: var(--accent); font-size: 1.25rem; touch-action: manipulation; }
@keyframes portal-arrive { from { opacity: 0; transform: translateY(24px) scale(.96); } to { opacity: 1; transform: none; } }
@media(max-width: 600px) {
    :root { --edge: max(18px, env(safe-area-inset-left)); }
    .wordmark { font-size: 1.4rem; }.runner-hud { font-size: .75rem; }
    .portal-trigger { right: max(14px, env(safe-area-inset-right)); gap: 7px; padding-right: 12px; min-height: 50px; }.portal-trigger kbd { display: none; }.portal-orbit { width: 34px; height: 34px; }.portal-orbit i:nth-child(1) { left: 13px; }
    .game-portal { width: calc(100% - 24px); max-height: calc(100dvh - 24px); padding: 22px 18px; }
    .portal-heading .eyebrow { font-size: .75rem; }.portal-heading h1 { font-size: 2rem; }
    .game-deck { display: flex; flex-direction: column; gap: 14px; margin: 28px 4px 24px; }
    .game-card { display: grid; grid-template-columns: 95px 1fr; gap: 8px 16px; padding: 14px; --tilt: 0deg !important; }
    .game-card:hover, .game-card:focus-visible { transform: translateX(3px); }
    .card-number { grid-column: 2; font-size: .75rem; }.card-scene { grid-column: 1; grid-row: 1 / 4; height: 100%; min-height: 125px; margin: 0; }
    .card-name { grid-column: 2; font-size: 1.8rem; margin: 0; }.card-action { grid-column: 2; font-size: .75rem; padding-top: 5px; }
    .portal-settings { gap: 8px; }.portal-settings label { flex-basis: 100%; justify-content: space-between; }#runnerSettings { gap: 8px; }
    .link-grid { grid-template-columns: repeat(2, 1fr); gap: 10px 20px; }
    .character-option { width: 80px; padding: 12px 6px; gap: 8px; }.character-option canvas { width: 42px; height: 63px; }.character-options { gap: 10px; }
    .site-grid { grid-template-columns: repeat(2, 1fr); }.site-card { padding: 12px 8px; }
    .mini-panel { padding-inline: 18px; gap: 16px; }.mini-hud { gap: 8px 16px; }#miniTitle { flex-basis: 100%; text-align: center; }
    .snake-surface { width: min(100%, calc((100dvh - 340px) * 1.5)); }.memory-surface { width: min(100%, calc(100dvh - 300px)); }
}
@media(hover: none), (pointer: coarse) { .mobile-controls { display: flex; } }
@media(max-height: 500px) and (min-width: 601px) {
    .mini-panel { padding: 68px 24px 12px; gap: 8px; }.mini-hud { gap: 16px; }#miniTitle { font-size: 1.4rem; }
    .snake-surface { width: min(100%, calc((100dvh - 175px) * 1.5)); }.memory-surface { width: min(100%, calc((100dvh - 145px) * 1.3)); }
    .snake-controls { position: absolute; bottom: 16px; left: 20px; flex-wrap: wrap; width: 110px; gap: 6px; }
    .memory-grid { gap: 6px; }.memory-pad { font-size: 1rem; }.mini-message p { font-size: .75rem; }.mini-message .button { min-height: 40px; padding: 8px 16px; }
}
@media(prefers-reduced-motion: reduce) { *, *::before, *::after { animation: none !important; transition: none !important; } }