:root{--primary-color: #3498db;--primary-dark: #2980b9;--secondary-color: #2ecc71;--secondary-dark: #27ae60;--danger-color: #e74c3c;--warning-color: #f39c12;--text-color: #2c3e50;--text-light: #7f8c8d;--bg-color: #f9f9f9;--card-bg: #ffffff;--border-color: #ecf0f1;--shadow: 0 4px 6px rgba(0, 0, 0, .1);--radius: 8px;--transition: all .3s ease;--section-spacing: 30px;--content-width: 1100px}body{font-family:Segoe UI,Roboto,system-ui,-apple-system,sans-serif;margin:0;padding:0;background-color:var(--bg-color);color:var(--text-color);line-height:1.6}*{box-sizing:border-box}.container{max-width:var(--content-width);margin:0 auto;padding:20px}h1,h2,h3{color:var(--primary-dark);font-weight:600;margin-top:0}h1{font-size:1.8rem;text-align:center;margin-bottom:var(--section-spacing);padding-bottom:15px;border-bottom:2px solid var(--border-color)}h2{font-size:1.4rem;display:flex;align-items:center}h2:before{content:"";display:inline-block;width:6px;height:20px;background-color:var(--primary-color);margin-right:12px;border-radius:3px}.section{background-color:var(--card-bg);margin-bottom:var(--section-spacing);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px 25px;transition:var(--transition);overflow:hidden}button,.action-button{background-color:var(--primary-color);color:#fff;border:none;padding:10px 15px;border-radius:var(--radius);cursor:pointer;font-size:.95rem;margin:5px 8px 5px 0;transition:var(--transition);display:inline-flex;align-items:center;justify-content:center;text-decoration:none;font-weight:500;min-width:100px}button:hover,.action-button:hover{background-color:var(--primary-dark);transform:translateY(-1px);box-shadow:0 2px 5px #0000001a}button:active,.action-button:active{transform:translateY(0)}button:disabled,.action-button:disabled{background-color:var(--text-light);cursor:not-allowed;opacity:.7;transform:none;box-shadow:none}.btn-success{background-color:var(--secondary-color)}.btn-success:hover{background-color:var(--secondary-dark)}.btn-danger{background-color:var(--danger-color)}#sysInfoButton{background-color:var(--primary-color)}#agnssButton{background-color:var(--secondary-color)}.status{margin-top:12px;padding:10px 15px;border-radius:var(--radius);background-color:var(--border-color);font-size:.9rem;transition:var(--transition);display:flex;align-items:center}.status:before{content:"◉";margin-right:10px;color:var(--text-light);font-size:1.2rem}#status.connected{background-color:#2ecc711a}#status.connected:before{color:var(--secondary-color)}#agnssStatus{background-color:#f39c121a}#agnssStatus:before{color:var(--warning-color)}#fileList,#messages{margin-top:15px;padding:15px;border-radius:var(--radius);border:1px solid var(--border-color);background-color:#fff;min-height:150px;max-height:400px;overflow-y:auto;box-shadow:inset 0 1px 3px #0000000d}#fileList .file-entry{padding:10px;border-bottom:1px solid var(--border-color);display:flex;justify-content:space-between;align-items:center;transition:var(--transition)}#fileList .file-entry:hover{background-color:#3498db0d}#fileList .file-entry:last-child{border-bottom:none}#fileList .file-name{flex-grow:1;display:flex;align-items:center;gap:10px}.file-item-name{color:var(--primary-color);transition:var(--transition);position:relative}.file-item-name:before{content:"📄";margin-right:8px}.dir-item-name{color:var(--secondary-color);cursor:pointer;transition:var(--transition)}.dir-item-name:before{content:"📁";margin-right:8px}.dir-item-name:hover{color:var(--secondary-dark);text-decoration:underline}#fileList .file-actions{display:flex;gap:8px}#fileList .file-actions button,#fileList .file-actions .action-button{min-width:auto;padding:6px 12px;font-size:.85rem}label{display:block;margin-bottom:8px;font-weight:500;color:var(--text-color)}input[type=text]{width:100%;padding:10px 12px;margin-bottom:15px;border:1px solid var(--border-color);border-radius:var(--radius);background-color:#fff;transition:var(--transition);font-size:.95rem}input[type=text]:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #3498db26}#sysInfoDisplay{height:auto;max-height:420px;overflow:auto;padding:0}#sysInfoDisplay>div{padding:0;box-shadow:none}#sysInfoDisplay table{width:100%;border-collapse:separate;border-spacing:0}#sysInfoDisplay tr{transition:var(--transition)}#sysInfoDisplay tr:nth-child(odd){background-color:#00000005}#sysInfoDisplay tr:hover{background-color:#3498db0d}#sysInfoDisplay td{padding:10px 15px;border-bottom:1px solid var(--border-color)}#sysInfoDisplay td:first-child{font-weight:500;color:var(--text-color);width:40%}#sysInfoDisplay td:last-child{font-family:Consolas,SF Mono,monospace}.device-info-card{margin-top:10px;max-width:420px;background-color:var(--card-bg);border-radius:var(--radius);padding:18px 20px;box-shadow:var(--shadow);border:1px solid var(--border-color)}.device-info-card h3{margin-top:0;color:var(--primary-color);font-size:1.2rem;margin-bottom:15px}.device-info-card table{width:100%;border-collapse:collapse}.device-info-card td{padding:8px 12px;border-bottom:1px solid var(--border-color);font-size:.95rem}.device-info-card td:first-child{font-weight:500;color:var(--text-color);width:40%}.device-info-card td:last-child{font-family:Consolas,SF Mono,monospace;color:var(--text-color)}.device-info-card tr:last-child td{border-bottom:none}.device-info-card tr:nth-child(odd){background-color:#00000005}.device-info-card tr:hover{background-color:#3498db0d}.error-text{color:var(--danger-color);margin-top:8px;font-size:.9rem}#gpxViewer{height:75vh;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}#messages{font-family:Consolas,SF Mono,monospace;font-size:.9rem;line-height:1.5;padding:12px 15px;color:#333}#messages .log-entry{padding:4px 0;border-bottom:1px dashed rgba(0,0,0,.05)}#messages .log-entry.error{color:var(--danger-color)}#messages .log-entry.success{color:var(--secondary-color)}#messages .log-entry.info{color:var(--primary-color)}.path-navigation{display:flex;align-items:center;gap:8px;margin-bottom:15px;background-color:#3498db0d;padding:8px 12px;border-radius:var(--radius)}.path-navigation .path-segment{color:var(--primary-color);cursor:pointer}.path-navigation .path-segment:hover{text-decoration:underline}.path-navigation .path-separator{color:var(--text-light)}@media (max-width: 768px){:root{--section-spacing: 20px}body,.container{padding:10px}h1{font-size:1.5rem}.section{padding:15px}button,.action-button{padding:8px 12px;font-size:.85rem;min-width:80px}#gpxViewer{height:60vh}}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.section{animation:fadeIn .3s ease-out}@media (prefers-color-scheme: dark){:root{--primary-color: #3498db;--primary-dark: #2980b9;--secondary-color: #2ecc71;--secondary-dark: #27ae60;--danger-color: #e74c3c;--warning-color: #f39c12;--text-color: #ecf0f1;--text-light: #bdc3c7;--bg-color: #2c3e50;--card-bg: #34495e;--border-color: #4a6077}#fileList,#messages{background-color:#0003}input[type=text]{background-color:#0000001a;color:var(--text-color);border-color:var(--border-color)}#sysInfoDisplay tr:nth-child(odd){background-color:#ffffff0d}.device-info-card{background-color:var(--card-bg);border-color:var(--border-color)}.device-info-card h3{color:var(--primary-color)}.device-info-card td{border-color:var(--border-color);color:var(--text-color)}.device-info-card tr:nth-child(odd){background-color:#ffffff0d}.device-info-card tr:hover{background-color:#3498db1a}.error-text{color:var(--danger-color)}}