:root{font-family:'Space Grotesk',system-ui,sans-serif;color:#e8eee7;background:#0e1714;font-synthesis:none}*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse 70% 35% at 50% -5%,#1a3e2b 0%,transparent 85%),#0e1714}button,input,select{font:inherit}button{cursor:pointer}a{color:#a9d791;text-decoration:none}a:hover{text-decoration:underline}.topbar{height:72px;border-bottom:1px solid #2d4435;display:flex;align-items:center;justify-content:space-between;padding:0 max(24px,calc((100vw - 1400px)/2));gap:24px}.brand{display:flex;align-items:center;gap:14px;font-weight:700;font-size:22px;letter-spacing:-.07em}.brand-mark{background:#caff84;color:#102413;border-radius:11px;padding:6px 9px;line-height:1}.brand-mark span,.board-title span{color:#f6a64a}.brand-copy{white-space:nowrap}.brand-copy small{font-size:12px;font-weight:500;color:#8fa79a;letter-spacing:.01em;margin-left:8px}.top-actions{display:flex;align-items:center;gap:24px;font-size:13px}.status{color:#badc9f}.status:before{content:'';display:inline-block;width:7px;height:7px;border-radius:50%;background:#8bdc7d;margin-right:8px;box-shadow:0 0 12px #8bdc7d}.status.paused:before{background:#ecaf63;box-shadow:none}.status.error:before{background:#ea766f;box-shadow:none}main{max-width:1440px;padding:0 24px;margin:auto}.intro{display:flex;justify-content:space-between;align-items:flex-end;gap:30px;padding:53px 6px 44px}.intro h1{font-size:clamp(38px,4.6vw,68px);line-height:.99;letter-spacing:-.075em;margin:10px 0 18px}.intro h1 em{font-style:normal;color:#b6e58f}.intro p:last-child{color:#a8bdb0;max-width:620px;line-height:1.6;margin:0}.eyebrow{font:500 11px 'DM Mono',monospace;letter-spacing:.17em;text-transform:uppercase;color:#9ed578;margin:0 0 8px}.intro-stats{display:flex;gap:8px;flex-wrap:wrap;padding-bottom:6px}.intro-stats span{border:1px solid #2c4938;border-radius:100px;padding:8px 13px;color:#8ea89a;white-space:nowrap;font-size:12px}.intro-stats b{color:#e4ecdf;font-family:'DM Mono',monospace;font-weight:500}.workspace{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(330px,.9fr);gap:18px}.board-card,.panel{border:1px solid #2d4638;background:#15231c;border-radius:22px;padding:22px;min-width:0;box-shadow:0 16px 45px #07100a33}.card-heading{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:19px}.card-heading h2{font-size:21px;letter-spacing:-.045em;margin:0}.live-dot{font:10px 'DM Mono',monospace;color:#8bcf87;white-space:nowrap}.live-dot:before{content:'';display:inline-block;width:6px;height:6px;border-radius:50%;background:#8dd982;margin-right:7px}.side-stack{display:grid;gap:18px}.board{position:relative;display:grid;grid-template-columns:44px minmax(0,1fr) 44px;gap:14px;min-height:494px;background:linear-gradient(138deg,#267045,#1d5739 51%,#164c30);border:7px solid #20482f;border-radius:18px;padding:22px 14px 16px;box-shadow:inset 0 0 0 2px #398756,inset 0 0 42px #09281e88,0 20px 24px #07150d88;overflow:hidden}.board:before{content:'';position:absolute;inset:0;background:repeating-linear-gradient(30deg,transparent 0 50px,#9cdc7020 50px 51px,transparent 51px 99px);pointer-events:none}.board:after{content:'';position:absolute;inset:10px;border:2px solid #91bc7560;border-radius:9px;pointer-events:none}.board-silk{position:absolute;color:#c7e6ad;z-index:1}.board-title{left:75px;top:13px;font-size:27px;font-weight:700;letter-spacing:-.08em}.board-title small{display:block;font:9px 'DM Mono',monospace;letter-spacing:.1em;color:#a7d3a7}.pin-rail{z-index:1;display:flex;flex-direction:column;justify-content:space-around;padding:38px 0 3px}.pin-rail .pin{display:flex;flex-direction:column;align-items:center;gap:2px;border:0;background:none;color:#d8f3cb;padding:0;cursor:pointer}.pin-rail .pin:disabled{cursor:default}.pin-hole{width:17px;height:17px;border-radius:3px;background:#182522;border:3px solid #ddbe68;box-shadow:inset 0 0 0 3px #070b0a,0 1px 2px #06150a}.pin-name{font:9px 'DM Mono',monospace;text-shadow:1px 1px #143723}.pin.output .pin-hole{border-color:#f2a961}.pin.low .pin-hole{box-shadow:inset 0 0 0 3px #07100b,0 0 8px #ffc25a}.pin.high .pin-hole{box-shadow:inset 0 0 0 3px #a6f47a,0 0 8px #9de36f77}.pin[aria-pressed=true] .pin-name{color:#ffd382}.board-center{z-index:1;display:flex;flex-direction:column;align-items:center;justify-content:space-between;padding:49px 4px 4px;min-width:0}.oled-housing{width:min(100%,430px);padding:19px 19px 8px;border-radius:7px;background:#202d34;border:3px solid #2e4250;box-shadow:0 7px 16px #0a2619bb,inset 0 0 0 1px #4b6570}.oled-glass{background:#080f1a;border:10px solid #101d29;border-radius:4px;padding:6px;box-shadow:inset 0 0 20px #01080d;width:100%}.oled-glass canvas{width:100%;height:auto;aspect-ratio:2/1;display:block;image-rendering:pixelated;background:#07121b}.oled-housing>span{display:block;margin-top:8px;text-align:center;font:10px 'DM Mono',monospace;color:#8faeb7}.board-chips{display:flex;justify-content:space-around;align-items:center;width:100%;padding:14px 0;gap:14px}.chip{background:#171f1d;color:#a8b2a5;border-radius:3px;border-left:8px dashed #202a24;border-right:8px dashed #202a24;box-shadow:0 8px 8px #08271888;padding:12px 11px;width:100px;font:10px 'DM Mono',monospace;text-align:center;line-height:1.45}.chip b{display:block;color:#e0e4d3;font-size:20px}.chip small{color:#838f83}.eeprom-chip{font:9px 'DM Mono',monospace;text-align:center;line-height:1.5;background:#1d2522;padding:12px 8px;border-radius:3px;color:#bbc9b5}.board-bottom{display:flex;align-items:center;justify-content:space-around;width:100%;gap:12px}.led-group{display:flex;align-items:center;gap:6px;color:#d0e7c4;font:10px 'DM Mono',monospace}.led{width:14px;height:14px;background:#174825;border-radius:50%;border:2px solid #b9dcb4;box-shadow:inset 0 0 6px #051b0b}.led.on{background:#8aff79;box-shadow:0 0 13px #7af982,inset 0 0 4px #e7ffe6}.hardware-button,.hardware-reset{border:2px solid #d4cba7;background:#d7d1bd;color:#25322a;border-radius:9px;box-shadow:0 5px 0 #787b69,0 8px 10px #07331b99;min-width:58px;min-height:48px;font:700 13px 'DM Mono',monospace}.hardware-button{display:flex;flex-direction:column;justify-content:center;align-items:center;touch-action:none;user-select:none}.hardware-button small{font-size:8px;font-weight:400}.hardware-button.pressed,.hardware-button:active,.hardware-reset:active{transform:translateY(4px);box-shadow:0 1px 0 #787b69}.hardware-reset{min-width:50px;min-height:40px;font-size:10px;background:#eab273;border-color:#ffda9a}.board-note,.muted{color:#8ca898;font-size:12px;line-height:1.5}.board-note{margin:15px 3px 0}kbd{padding:1px 5px;border:1px solid #526c5c;border-radius:4px;font:11px 'DM Mono',monospace;color:#cceab6}.panel{padding:21px}.transport,.file-actions,.debug-actions{display:flex;flex-wrap:wrap;gap:8px}.panel button,.file-button{border:1px solid #46604d;background:#203329;color:#d7ebd4;border-radius:9px;padding:9px 13px;font-size:13px;font-weight:600;transition:background .15s}.panel button:hover,.file-button:hover{background:#2b4734}.panel button.primary{background:#c1ec91;border-color:#c1ec91;color:#15311b}.panel button.primary:hover{background:#daf7b8}.control-grid{display:grid;grid-template-columns:1fr 1fr;gap:13px;margin:19px 0}.control-grid label,.debug-actions label{display:flex;flex-direction:column;gap:6px;color:#9db7a6;font-size:11px}.control-grid select,.debug-actions input,.terminal-panel input{min-width:0;border:1px solid #425b49;border-radius:8px;background:#0d1b14;color:#e7f2e1;padding:9px;font-size:12px}.file-button{display:inline-block;cursor:pointer}.file-button input{display:none}.controls-panel .muted{margin-bottom:0}.switch-row{border:1px solid #2f4b3a;border-radius:10px;padding:11px}.toggle{display:flex;gap:10px;align-items:center;font-size:12px;cursor:pointer}.toggle input{position:absolute;opacity:0}.toggle-track{width:32px;height:18px;border-radius:20px;background:#486253;position:relative;flex:none}.toggle-track:before{content:'';position:absolute;width:12px;height:12px;background:#eaf1dc;border-radius:50%;top:3px;left:3px;transition:transform .2s}.toggle input:checked+.toggle-track{background:#80b961}.toggle input:checked+.toggle-track:before{transform:translateX(14px)}.gpio-legend{display:flex;gap:11px;flex-wrap:wrap;color:#8ca898;font-size:10px;margin:13px 0}.pin-key{width:8px;height:8px;display:inline-block;border-radius:50%;margin-right:3px;background:#b2e68e}.pin-key.low{background:#e6a85c}.pin-key.output{background:#ef874a}.gpio-list{display:grid;grid-template-columns:1fr 1fr;gap:3px 12px;max-height:190px;overflow:auto}.gpio-item{display:grid;grid-template-columns:8px 27px 1fr 31px;align-items:center;gap:5px;font:10px 'DM Mono',monospace;color:#b8d1b9;border-bottom:1px solid #284334;padding:3px 0}.gpio-item .light{width:7px;height:7px;border-radius:50%;background:#d9a363}.gpio-item.high .light{background:#b2e68e}.gpio-item.output .light{box-shadow:0 0 0 2px #e49056}.gpio-item .fn{overflow:hidden;white-space:nowrap;text-overflow:ellipsis;color:#87a48e}.gpio-item button{font-size:9px;padding:2px 3px;border-radius:4px}.gpio-item button:disabled{opacity:.4;cursor:default}.terminal-panel,.debugger-panel{min-height:270px}.terminal-panel pre,.disassembly{background:#0b1511;border:1px solid #2a4837;border-radius:10px;padding:15px;min-height:125px;max-height:220px;overflow:auto;font:12px/1.55 'DM Mono',monospace;color:#bce89b;white-space:pre-wrap;margin:0}.terminal-panel form{display:flex;gap:8px;margin-top:10px}.terminal-panel form input{flex:1;font-size:13px}.terminal-panel .text-button{background:none;border:none;color:#9abd9f;padding:5px}.mono{font:11px 'DM Mono',monospace;color:#8db69a}.registers{display:flex;flex-wrap:wrap;gap:6px;margin:0 0 12px}.registers span{background:#23392b;border:1px solid #37553d;border-radius:6px;padding:5px 7px;font:11px 'DM Mono',monospace}.registers b{color:#a4dc7c;font-weight:500}.disassembly{min-height:125px;white-space:pre;font-size:11px}.debug-actions{align-items:end;margin-top:11px}.debug-actions input{width:70px}.debug-actions .muted{flex:1}footer{padding:42px 6px 55px;color:#789385;font-size:12px;line-height:1.7}button:focus-visible,input:focus-visible,select:focus-visible,a:focus-visible{outline:2px solid #c1ed94;outline-offset:3px}@media(max-width:1050px){.workspace{grid-template-columns:1fr}.side-stack{grid-template-columns:1fr 1fr}.board{min-height:510px}}@media(max-width:700px){.topbar{padding:0 16px}.brand-copy small{display:none}.top-actions{gap:10px}.top-actions a{display:none}main{padding:0 13px}.intro{padding:37px 4px 30px;display:block}.intro-stats{margin-top:22px}.board-card,.panel{padding:15px;border-radius:15px}.workspace,.side-stack{display:grid;grid-template-columns:1fr;gap:13px}.board{min-height:420px;grid-template-columns:31px minmax(0,1fr) 31px;gap:5px;padding:17px 5px 10px}.board-title{left:43px;top:8px;font-size:19px}.board-center{padding-top:40px}.oled-housing{padding:10px 10px 6px}.oled-glass{border-width:6px;padding:3px}.chip{width:70px;padding:7px 4px;font-size:8px}.chip b{font-size:16px}.eeprom-chip{display:none}.pin-name{font-size:7px}.pin-hole{width:14px;height:14px}.board-bottom{gap:4px}.led-group small{display:none}.control-grid{gap:9px}}

/* Physical-board view: coordinates are measured against the cropped, populated
   65uino photo (source image 2407 px square; board crop x=195..2265,
   y=453..1912). Header socket centers are approximately x=346..859 and
   x=959..1615, y=1840 in the source photo. */
.board{display:block;min-height:0;width:100%;aspect-ratio:2070/1459;padding:0;border:0;border-radius:10px;background:#eee;box-shadow:0 18px 30px #050c08aa;overflow:hidden;isolation:isolate}
.board:before,.board:after{display:none}
.board-photo{position:absolute;left:-9.42%;top:-31.05%;width:116.28%;max-width:none;height:auto;user-select:none;pointer-events:none}
.board #oled{position:absolute;z-index:2;left:1.55%;top:13.45%;width:35.4%;height:25.7%;background:#061722;border-radius:1%;box-shadow:0 0 10px #0a2f4880;image-rendering:pixelated}
.board .led{position:absolute;z-index:3;left:75.1%;top:60.6%;width:1.2%;height:1.8%;border:0;border-radius:50%;background:transparent;box-shadow:none;pointer-events:none}
.board .led.on{background:#a5ff83;box-shadow:0 0 11px 5px #75ff6dba}
.board .hardware-button,.board .hardware-reset{position:absolute;z-index:5;top:86.6%;width:7.5%;height:9.3%;min-width:0;min-height:0;border:0;border-radius:16%;padding:0;background:transparent;color:transparent;box-shadow:none;touch-action:none;user-select:none}
.board .hardware-reset{left:76.1%}.board .hardware-button{left:85.5%}
.board .hardware-button:hover,.board .hardware-reset:hover,.board .hardware-button:focus-visible,.board .hardware-reset:focus-visible{outline:3px solid #aeed8c;outline-offset:1px;box-shadow:0 0 14px #8eff79a8}
.board .hardware-button.pressed,.board .hardware-button:active,.board .hardware-reset:active{transform:none;background:#a4e98748;box-shadow:inset 0 0 12px #a3ff91}
.board .pin-rail{position:absolute;z-index:4;top:92.9%;height:4.6%;display:grid;grid-template-columns:repeat(8,minmax(0,1fr));gap:0;padding:0}
.board .left-rail{left:5.55%;width:28.3%}.board .right-rail{left:35.2%;width:35.2%;grid-template-columns:repeat(10,minmax(0,1fr))}
.board .pin-rail .pin{position:relative;grid-row:1;display:flex;justify-content:center;align-items:center;width:100%;height:100%;padding:0;border-radius:4px}
.board .pin-rail .pin-hole{width:clamp(6px,1.25vw,13px);height:clamp(6px,1.25vw,13px);border:1px solid #d8ad6b;border-radius:2px;background:#171512;box-shadow:inset 0 0 0 2px #0d0c0a}
.board .pin-rail .pin.high .pin-hole{box-shadow:inset 0 0 0 2px #a4e980,0 0 8px #92e573}
.board .pin-rail .pin.low .pin-hole{box-shadow:inset 0 0 0 2px #20170e,0 0 8px #ffbb70}
.board .pin-rail .pin.output .pin-hole{border-color:#f4a663}
.board .pin-rail .pin-name{position:absolute;bottom:100%;left:50%;transform:translateX(-50%);display:none;background:#112018eb;border:1px solid #b6df99;border-radius:3px;padding:2px 3px;font-size:9px;color:#eaf8de;white-space:nowrap;text-shadow:none}
.board .pin-rail .pin:hover .pin-name,.board .pin-rail .pin:focus-visible .pin-name{display:block}
.board .pin-rail .pin:focus-visible{outline:2px solid #b9ec92;outline-offset:0}
.board-mobile-controls{display:none}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.rom-picker{display:flex;flex-direction:column;gap:5px;min-width:0;color:#9db7a6;font-size:11px}
.rom-picker input{max-width:100%;min-width:0;color:#cfe2d2;font-size:12px}
.rom-picker input::file-selector-button{border:1px solid #46604d;border-radius:9px;background:#203329;color:#d7ebd4;padding:9px 13px;margin-right:8px;font:600 13px 'Space Grotesk',system-ui,sans-serif;cursor:pointer}
.rom-picker input::file-selector-button:hover{background:#2b4734}
@media(max-width:700px){.board{min-height:0;grid-template-columns:none;gap:0;padding:0}.board .pin-rail .pin-hole{width:6px;height:6px;box-shadow:none}.board .pin-rail .pin-name{font-size:8px}.board-mobile-controls{display:flex;gap:8px;margin-top:13px}.board-mobile-controls button{flex:1;min-height:42px;border:1px solid #608469;border-radius:9px;background:#2b4936;color:#e6f8dc;font-weight:700;touch-action:none}.board-mobile-controls button:first-child{background:#c2eb96;color:#19321e}.board-mobile-controls button.pressed{background:#93cb70;transform:translateY(2px)}}