:root{color-scheme:dark;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;--bg: #0b0f14;--panel: #121821;--panel-alt: #17202b;--text: #e8eef6;--muted: #97a6ba;--accent: #71d7ff;--accent-strong: #2eb5ff;--border: rgba(255, 255, 255, .08);--error: #ff7d7d;--ok: #62d47e;--warn: #f4c64d}*{box-sizing:border-box}html,body,#root{min-height:100%;margin:0}body{background:radial-gradient(circle at top left,rgba(46,181,255,.14),transparent 32%),radial-gradient(circle at top right,rgba(98,212,126,.1),transparent 28%),linear-gradient(180deg,#071019,#0b0f14);color:var(--text)}button,input,select{font:inherit}button{border:0;border-radius:12px;padding:.9rem 1.1rem;cursor:pointer}button:disabled{opacity:.5;cursor:not-allowed}.shell{max-width:1200px;margin:0 auto;padding:32px 20px 48px}.hero{display:flex;justify-content:space-between;gap:24px;align-items:end;margin-bottom:28px}.eyebrow{margin:0 0 10px;color:var(--accent);letter-spacing:.14em;text-transform:uppercase;font-size:.78rem}h1{margin:0;font-size:clamp(2.1rem,4vw,4rem);line-height:1.02}.lede,.panelText,.statusCard p,.fileBox p,.serialCards{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,280px),1fr));gap:16px}.connectionSerials{margin-top:18px;padding-top:16px;border-top:1px solid var(--border)}.connectionSerials>h3{margin:0 0 12px;font-size:1rem}.serialCard{padding:20px;border:1px solid var(--border);border-radius:14px;background:#ffffff0a;min-width:0}.serialCard h3{margin:0 0 12px;font-size:1rem}.serialCard p,.serialHelp{color:var(--muted);font-size:.88rem}.serialValue{font-size:clamp(1.25rem,3vw,1.8rem);font-weight:700;overflow-wrap:anywhere}.serialValue.valid{font-family:ui-monospace,monospace;color:var(--ok);letter-spacing:.06em;-webkit-user-select:all;user-select:all}.error{color:var(--muted)}.statusCard{display:flex;align-items:center;gap:14px;background:#121821e0;border:1px solid var(--border);border-radius:18px;padding:16px 18px;min-width:280px}.statusDot{cursor:default;padding:0;flex-shrink:0;width:14px;height:14px;border-radius:999px;background:var(--muted);box-shadow:0 0 0 6px #ffffff0a}.statusDot.ready{background:var(--ok)}.statusDot.requesting{background:var(--warn)}.statusDot.error{background:var(--error)}.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.panel{background:linear-gradient(180deg,#121821f5,#0b0f14f5);border:1px solid var(--border);border-radius:22px;padding:20px;box-shadow:0 18px 60px #0000003d}.panel.wide{grid-column:1 / -1}.panel h2{margin:0 0 8px;font-size:1.1rem}.primary{background:linear-gradient(135deg,var(--accent-strong),var(--accent));color:#041018;font-weight:700;margin-top:8px}.secondary{margin-top:12px;background:#ffffff14;color:var(--text)}.deviceActions{display:flex;gap:10px}.deviceActions button{min-width:120px}.languagePicker{margin-left:auto;font-size:.8rem;min-width:120px}.languagePicker select{background:#0f1720;color:#edf6ff;padding:.5rem}.languagePicker option{background:#0f1720;color:#edf6ff}.statusDot:focus-visible{outline:2px solid var(--accent);outline-offset:8px}.manualFirmware p{overflow-wrap:anywhere}.manualFirmware small{display:block;color:var(--muted)}.updaterInstructions{margin:0 0 20px;font-size:.9rem;line-height:1.8}.updaterInstructions h2{margin:0 0 8px;font-size:1rem}.updaterInstructions ol{margin:0;padding-left:1.5em}.updaterInstructions ul{margin:4px 0;padding-left:1.3em}.updaterInstructions li{margin-bottom:6px}.updaterInstructions p{margin:8px 0 0;color:var(--muted);font-size:.85rem}.connectionCompact{padding:16px 20px}.connectionToolbar{display:flex;align-items:center;gap:16px;flex-wrap:wrap}.connectionPicker{display:flex;align-items:center;gap:12px;flex:1;min-width:0}.connectionPicker select{margin:0;min-width:0;flex:1}.connectionToolbar .deviceActions{margin-left:auto}.connectionToolbar button{margin-top:0;min-width:90px}.connectionSummary{display:grid;gap:2px;flex:1;min-width:0}.connectionSummary strong{overflow-wrap:anywhere}.connectionSummary small,.connectionSummary span{color:var(--muted);font-size:.85rem}.connectionDetails{margin-top:12px;font-size:.88rem}.connectionDetails summary{cursor:pointer;color:var(--muted)}.connectionDetails .deviceInfo{margin-top:10px}@media(max-width:600px){.connectionPicker{flex-basis:100%}}.subgrid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:16px}label{display:grid;gap:8px;color:var(--muted);font-size:.92rem}input[type=file],select{width:100%;background:#ffffff0d;color:var(--text);color-scheme:dark;border:1px solid var(--border);border-radius:12px;padding:.8rem .9rem}.connectionPicker select{background:#0f1720;color:#edf6ff;border-color:#52657b}.connectionPicker select option{padding:10px 12px;background:#0f1720;color:#edf6ff}.connectionPicker select option:checked{background:var(--accent-strong);color:#041018}.connectionPicker select:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.deviceInfo{display:grid;gap:6px;padding:14px;border-radius:14px;background:#ffffff0a;border:1px solid var(--border)}.deviceInfo span{font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;color:var(--accent)}.deviceInfo strong{font-size:1rem}.deviceInfo p,.deviceHint{margin:0;color:var(--muted)}.deviceHint{margin-top:12px;padding:12px 14px;border-radius:14px;background:#ffffff08;border:1px solid var(--border)}.fileBox{margin-top:14px;padding:14px;border-radius:14px;background:#ffffff0a;border:1px dashed var(--border)}.fileBox p{margin:0}.progressBox{margin-top:14px;padding:14px;border-radius:14px;background:#ffffff0a;border:1px solid var(--border);display:grid;gap:10px}.progressLine{display:flex;justify-content:space-between;gap:12px;align-items:center}.progressLine span{color:var(--muted);text-transform:uppercase;letter-spacing:.08em;font-size:.74rem}.meter{height:10px;border-radius:999px;background:#ffffff14;overflow:hidden}.meterFill{height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--accent-strong),var(--accent));transition:width .2s ease,background .3s ease}.updateCompleteNotice{padding:14px 16px;border:1px solid var(--ok);border-radius:12px;background:#62d47e14;color:var(--ok);line-height:1.7}.meter.failed{background:#491e27;outline:1px solid var(--error)}.meterFill.failed{background:#ef4444}.meterFill.complete{background:linear-gradient(90deg,#35b95b,var(--ok))}.logList{display:grid;gap:10px;margin-top:16px;max-height:360px;overflow:auto}.logItem{display:grid;gap:4px;background:#ffffff0a;border:1px solid var(--border);border-radius:14px;padding:12px 14px}.logItem span{font-size:.74rem;letter-spacing:.1em;color:var(--accent)}.logItem p{margin:0}.logItem.warning span{color:var(--warn)}.logItem.file span{color:#9ee7ff}.logItem.system span,.logItem.success span{color:var(--ok)}.error{margin:10px 0 0}@media(max-width:860px){.hero{flex-direction:column;align-items:stretch}.grid,.subgrid{grid-template-columns:1fr}}