:root{--gold: #f2a900;--orange: #ffab19;--blue: #4c97ff;--green: #59c059;--cyan: #5cb1d6;--purple: #9966ff;--ink: #3a4150;--muted: #7b8497;--line: #e6e8ec;--canvas: #f4f5f7;--panel: #ffffff;--font: "Fredoka", "Baloo 2", Nunito, system-ui, -apple-system, "Segoe UI", sans-serif;--mono: "JetBrains Mono", "Fira Code", Consolas, monospace}[data-theme=dark]{--ink: #e6e9f2;--muted: #8b93ad;--line: #2a3346;--canvas: #0c1018;--panel: #1a2233}[data-theme=dark] .blockly pattern line{stroke:#232c40!important}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:var(--font);color:var(--ink);background:var(--canvas);-webkit-font-smoothing:antialiased}.app{display:flex;flex-direction:column;height:100vh}.topbar{display:flex;align-items:center;justify-content:space-between;padding:10px 18px;background:var(--panel);border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px}.brand-logo{height:40px;width:auto;object-fit:contain;display:block}.brand-tag{font-size:13px;font-weight:600;color:var(--muted);border-left:2px solid var(--line);padding-left:12px}.brandtext h1{font-size:19px;margin:0;font-weight:700;line-height:1.1}.brandtext p{margin:2px 0 0;font-size:12px;color:var(--muted)}.controls{display:flex;align-items:center;gap:14px}.board-select{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted)}.board-select select{font-family:var(--font);font-size:14px;font-weight:600;color:var(--ink);padding:8px 12px;border:2px solid var(--line);border-radius:12px;background:var(--panel);cursor:pointer}.btn{font-family:var(--font);font-weight:700;font-size:14px;border:none;border-radius:13px;padding:10px 18px;cursor:pointer;color:#fff;background:var(--blue);box-shadow:0 2px #0000001f;transition:transform .05s ease}.btn:active{transform:translateY(1px);box-shadow:0 1px #0000001f}.btn.upload{background:var(--orange)}.btn.ghost{background:transparent;color:var(--muted);box-shadow:none;padding:4px 10px;font-size:12px}.icon-btn{display:grid;place-items:center;width:38px;height:38px;border:2px solid var(--line);border-radius:12px;background:var(--panel);color:var(--muted);cursor:pointer;transition:color .15s ease}.icon-btn:hover{color:var(--ink)}.workarea{flex:1;display:flex;min-height:0}.blockly{flex:1;min-width:0}.codepanel{width:384px;background:#0f1320;color:#e6e9f2;display:flex;flex-direction:column;border-left:1px solid #0a0d17}.codehead{display:flex;align-items:center;gap:8px;padding:12px 14px;font-size:13px;color:#aeb6cc;border-bottom:1px solid rgba(255,255,255,.06)}.codehead .dot{width:10px;height:10px;border-radius:50%;background:var(--green)}.codehead .btn.ghost{margin-left:auto;color:#aeb6cc}.code{flex:1;margin:0;padding:14px 16px;overflow:auto;font-family:var(--mono);font-size:12.5px;line-height:1.65;white-space:pre;color:#dfe5f3}.boardinfo{display:flex;flex-direction:column;gap:4px;padding:12px 16px;border-top:1px solid rgba(255,255,255,.06);font-size:12px}.boardinfo strong{font-size:13px}.boardinfo code{color:#8fb6ff;font-family:var(--mono);font-size:11.5px}.boardinfo .ok{color:#73d68a}.boardinfo .warn{color:#ffcf6b}.modalwrap{position:fixed;top:0;right:0;bottom:0;left:0;background:#14182480;display:grid;place-items:center;z-index:50}.modal{background:var(--panel);border-radius:18px;padding:24px;width:min(540px,92vw);box-shadow:0 24px 60px #00000040}.modal h2{margin:0 0 6px;font-size:20px}.muted{color:var(--muted);font-size:13px;margin:0 0 12px;line-height:1.5}.cmd{background:#0f1320;color:#dfe5f3;border-radius:12px;padding:14px;font-family:var(--mono);font-size:12.5px;line-height:1.7;white-space:pre-wrap;overflow:auto}.notes{margin:14px 0 18px;padding-left:18px;color:var(--ink);font-size:13px;line-height:1.6}.modal .btn{background:var(--blue)}.modal.wide{width:min(680px,94vw)}.upload-row{display:flex;align-items:center;gap:12px;margin:4px 0 14px}.upload-port{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted)}.upload-port select{font-family:var(--font);font-weight:600;font-size:14px;color:var(--ink);padding:8px 12px;border:2px solid var(--line);border-radius:12px;background:var(--panel);cursor:pointer}.upload-row .fqbn{margin-left:auto;font-family:var(--mono);font-size:12px;color:var(--muted)}.modal-actions{display:flex;gap:10px;align-items:center}.cmd.log{margin-top:14px;max-height:300px;white-space:pre-wrap}.cmd.log.ok{box-shadow:inset 0 0 0 1.5px #59c0598c}.cmd.log.err{box-shadow:inset 0 0 0 1.5px #ff54708c}.flashbar{height:8px;border-radius:6px;background:var(--line);overflow:hidden;margin-top:14px}.flashbar-fill{height:100%;background:linear-gradient(90deg,var(--blue),var(--green));transition:width .2s ease}.muted.small{font-size:11.5px;margin-top:10px}.blockly .blocklyEditableText>rect{rx:15px;ry:15px}.blockly g.blocklyEditableText:has(image)>rect{fill:#0000002e!important}.blockly g.blocklyEditableText:has(image) image{filter:brightness(0) invert(1)}.blocklyHtmlInput{border-radius:15px!important;text-align:center;padding:0 8px!important}.tabs{display:flex;align-items:center;gap:6px;padding:8px 10px;border-bottom:1px solid rgba(255,255,255,.07)}.tab{font-family:var(--font);font-weight:600;font-size:13px;color:#8b93ad;background:transparent;border:none;padding:6px 10px;border-radius:9px;cursor:pointer}.tab:hover{color:#cdd3e6}.tab.active{color:#fff;background:#ffffff14}.tabs .copy{margin-left:auto;color:#8b93ad}.serial{flex:1;display:flex;flex-direction:column;min-height:0}.serial-bar{display:flex;align-items:center;gap:8px;padding:10px 12px;border-bottom:1px solid rgba(255,255,255,.06)}.serial-bar select{font-family:var(--font);font-weight:600;font-size:13px;color:#dfe5f3;background:#1b2030;border:1px solid rgba(255,255,255,.12);border-radius:9px;padding:6px 8px;cursor:pointer}.btn.danger{background:#ff5470}.status-dot{width:10px;height:10px;border-radius:50%;margin-left:auto}.status-dot.on{background:#59c059;box-shadow:0 0 0 3px #59c05940}.status-dot.off{background:#4a5169}.serial-note{margin:8px 12px 0;font-size:12px;color:#aeb6cc}.serial-note.err{color:#ffb4b4}.serial-log{flex:1;margin:0;padding:12px;overflow:auto;font-family:var(--mono);font-size:12.5px;line-height:1.6;white-space:pre-wrap;color:#bfe3c8}@media(max-width:920px){.workarea{flex-direction:column}.blockly{flex:1;min-height:0}.codepanel{width:100%;height:260px;border-left:none;border-top:1px solid #0a0d17}}