:root{--bg-main: #1e1e1e;--bg-panel: #252526;--border-color: #333;--text-main: #cccccc;--accent: #007acc;--accent-hover: #005f9e;--error: #f48771;--success: #89d185}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,sans-serif;background:var(--bg-main);color:var(--text-main);height:100vh;overflow:hidden}@keyframes spin{to{transform:rotate(360deg)}}.spin-icon{animation:spin 1s linear infinite}.top-nav{background:var(--bg-panel);height:50px;padding:0 20px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--border-color)}.nav-left,.nav-right{display:flex;align-items:center;gap:15px}.brand{font-weight:600;color:#fff;letter-spacing:1px;display:flex;align-items:center;gap:8px}.board-id-badge{color:#fff;font-size:13px;padding:0 12px;opacity:.8;display:flex;align-items:center}button{background:var(--accent);color:#fff;border:none;padding:6px 10px;font-size:13px;font-weight:600;border-radius:3px;cursor:pointer;display:flex;align-items:center;gap:6px;transition:background .2s}button:hover:not(:disabled){background:var(--accent-hover)}button:disabled{background:#4d4d4d;color:#888;cursor:not-allowed}button.outline{background:transparent;border:1px solid var(--border-color);color:var(--text-main)}button.outline:hover:not(:disabled){background:var(--border-color)}button.btn-material{border-color:#4ade80;color:#4ade80;background:#4ade801a}.workspace{display:flex;flex-direction:column;height:calc(100vh - 50px)}.editor-container{flex-grow:1;position:relative}.bottom-panel{height:250px;background:#111;border-top:1px solid var(--border-color);display:flex;flex-direction:column}.panel-tabs{display:flex;align-items:center;background:var(--bg-panel);border-bottom:1px solid var(--border-color);width:100%}.tab{padding:8px 20px;font-size:12px;text-transform:uppercase;cursor:pointer;color:#888;border-right:1px solid var(--border-color);display:flex;align-items:center;gap:6px;white-space:nowrap}.tab.active{color:#fff;background:#111;border-bottom:1px solid transparent}.tab.action{border-left:1px solid var(--border-color);border-right:none}.tab.paused{color:var(--error)}.serial-input-container{display:flex;align-items:center;flex:1;margin:0 16px;background:#1e1e1e;border-radius:4px;padding:2px 8px;border:1px solid var(--border-color)}.serial-prompt{color:#4ade80;margin-right:8px;font-size:13px;font-weight:700}.serial-input{flex:1;background:transparent;border:none;color:#fff;font-size:13px;font-family:JetBrains Mono,Courier New,monospace;outline:none}.serial-send-btn{background:transparent;border:none;padding:0 4px;display:flex;align-items:center}.serial-send-btn.active{color:#4ade80;cursor:pointer}.serial-send-btn.disabled{color:#555;cursor:not-allowed}.terminal-output{padding:10px;font-family:Courier New,monospace;font-size:13px;overflow-y:auto;flex-grow:1;color:#d4d4d4}.log-error{color:var(--error)}.log-success{color:var(--success)}.log-system{color:#569cd6}.lock-overlay{position:absolute;inset:0;background:#1e1e1ed9;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;justify-content:center;align-items:center;z-index:100;transition:opacity .3s ease}.lock-card{background:var(--bg-panel);padding:30px;border-radius:6px;text-align:center;border:1px solid var(--border-color);max-width:380px}.lock-card h2{margin-top:0;color:#fff;font-size:18px;font-weight:500;display:flex;align-items:center;justify-content:center;gap:8px}.lock-card p{font-size:14px;color:#aaa;margin-bottom:25px;line-height:1.5}.error-box{background:#f487711a;border:1px solid var(--error);padding:12px;margin-top:20px;border-radius:4px;text-align:left;font-size:13px;color:var(--error)}.dropdown{position:relative;display:inline-block}.dropdown-content{display:none;position:absolute;top:100%;left:0;background:var(--bg-panel);border:1px solid var(--border-color);z-index:1000;min-width:160px;border-radius:3px;box-shadow:0 4px 6px #0000004d}.dropdown:hover>.dropdown-content{display:block}.dropdown-item{padding:8px 16px;cursor:pointer;color:var(--text-main);font-size:13px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--border-color);position:relative}.dropdown-item:last-child{border-bottom:none}.dropdown-item:hover{background:#333;color:#fff}.sub-dropdown-content{display:none;position:absolute;top:-1px;left:100%;background:var(--bg-panel);border:1px solid var(--border-color);min-width:160px;border-radius:3px;box-shadow:0 4px 6px #0000004d}.dropdown-item.has-sub:hover>.sub-dropdown-content{display:block}.dropdown-content.left-expand{right:0;left:auto}.sub-dropdown-content.left-expand{right:100%;left:auto;margin-right:-2px}.modal-overlay{position:fixed;inset:0;background:#000000b3;z-index:1000;display:flex;justify-content:center;align-items:center}.modal-content{background:var(--bg-main);border:1px solid var(--border-color);border-radius:8px;padding:20px;width:600px;max-height:80vh;display:flex;flex-direction:column}.modal-header{display:flex;justify-content:space-between;margin-bottom:16px;align-items:center}.modal-header h3{margin:0;color:#fff;display:flex;align-items:center;gap:8px}.modal-close-btn{background:transparent;border:none;color:#888;cursor:pointer;font-size:18px;padding:0}.search-container{display:flex;gap:8px;margin-bottom:16px}.search-input{flex:1;padding:10px;background:#2d2d2d;color:#fff;border:1px solid #444;border-radius:4px;outline:none}.lib-results{overflow-y:auto;flex:1;display:flex;flex-direction:column;gap:8px}.lib-card{background:#2d2d2d;padding:12px;border-radius:4px;border:1px solid #444}.lib-card-header{display:flex;justify-content:space-between;align-items:flex-start}.lib-title{display:flex;align-items:center;gap:4px;font-size:14px;color:#fff}.lib-title.installed{color:#4ade80}.lib-author{font-size:12px;color:#888}.lib-desc{margin:8px 0 0;font-size:12px;color:#ccc;line-height:1.4}.btn-add{background:#333;padding:6px 12px;font-size:12px}.btn-remove{background:var(--error);padding:6px 12px;font-size:12px}.vault-floating-btn{position:absolute;bottom:24px;right:24px;background:#d97706;color:#fff;border-radius:4px;padding:8px 14px;box-shadow:0 4px 6px #0000004d;z-index:10;border:1px solid #f59e0b}.vault-floating-btn:hover{background:#b45309}.vault-floating-btn.pulse{animation:amberPulse 2s infinite}@keyframes amberPulse{0%{box-shadow:0 0 #f59e0bb3}70%{box-shadow:0 0 0 10px #f59e0b00}to{box-shadow:0 0 #f59e0b00}}