:root,[data-theme=dark]{--bg: #0d0f14;--surface: rgba(22, 25, 33, .85);--surface-border: rgba(255, 255, 255, .06);--text: #e6e8ec;--text-muted: #8b8f99;--accent-cyan: #22d3ee;--accent-green: #4ade80;--accent-amber: #fbbf24;--accent-red: #f87171;--glow-green: rgba(74, 222, 128, .5);--glow-amber: rgba(251, 191, 36, .5);--glow-red: rgba(248, 113, 113, .5);--font-sans: "Outfit", system-ui, sans-serif;--font-mono: "JetBrains Mono", monospace;--radius: 16px;--radius-sm: 10px;--control-bg: rgba(255, 255, 255, .08);--control-border: rgba(255, 255, 255, .12);--control-text: #e6e8ec}[data-theme=light]{--bg: #f0f2f5;--surface: rgba(255, 255, 255, .9);--surface-border: rgba(0, 0, 0, .08);--text: #1a1d23;--text-muted: #5c616b;--accent-cyan: #0891b2;--accent-green: #16a34a;--accent-amber: #d97706;--accent-red: #dc2626;--glow-green: rgba(22, 163, 74, .4);--glow-amber: rgba(217, 119, 6, .4);--glow-red: rgba(220, 38, 38, .4);--control-bg: rgba(0, 0, 0, .06);--control-border: rgba(0, 0, 0, .12);--control-text: #1a1d23}*,*:before,*:after{box-sizing:border-box}body{margin:0;min-height:100vh;background:var(--bg);color:var(--text);font-family:var(--font-sans);font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased}#app{min-height:100vh;padding:2rem 1.5rem 3rem;max-width:720px;margin:0 auto}.header{position:relative;text-align:left;margin-bottom:2rem;padding-right:12rem}@media (max-width: 520px){.header{padding-right:0}.header-controls{position:static;justify-content:center;margin-bottom:.75rem}}.header-controls{position:absolute;top:0;right:0;display:flex;align-items:center;gap:.75rem;flex-wrap:wrap}.interval-label{font-size:.85rem;color:var(--text-muted);white-space:nowrap}.interval-select{font-family:var(--font-mono);font-size:.9rem;padding:.4rem .6rem;background:var(--control-bg);border:1px solid var(--control-border);border-radius:var(--radius-sm);color:var(--control-text);cursor:pointer}.interval-select:focus{outline:none;border-color:var(--accent-cyan)}.header-btn,.theme-toggle{font-size:.85rem;font-weight:500;padding:.4rem .75rem;background:var(--control-bg);border:1px solid var(--control-border);border-radius:var(--radius-sm);color:var(--control-text);cursor:pointer}.header-btn:hover,.theme-toggle:hover{background:var(--surface)}.header-btn:focus,.theme-toggle:focus{outline:none;border-color:var(--accent-cyan)}.title{font-size:1.75rem;font-weight:600;letter-spacing:-.02em;margin:0 0 .25rem;background:linear-gradient(135deg,var(--accent-cyan),var(--accent-green));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.subtitle{margin:0;color:var(--text-muted);font-size:.95rem}.header-description{margin:.75rem 0 0;color:var(--text-muted);font-size:.9rem;line-height:1.55;max-width:60ch}.main{display:flex;flex-direction:column;gap:1.5rem}.top-row{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;align-items:start}@media (max-width: 640px){.top-row{grid-template-columns:1fr}}.dashboard-card{background:var(--surface);border:1px solid var(--surface-border);border-radius:var(--radius);padding:1.25rem 1.5rem;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.dashboard-grid{display:grid;grid-template-columns:auto 1fr;gap:.5rem 1.5rem;margin:0;font-size:.9rem}.dashboard-grid dt{color:var(--text-muted);font-weight:500}.dashboard-grid dd{margin:0;font-family:var(--font-mono);color:var(--text)}.dashboard-value{word-break:break-all}.chart-title,.diagnostics-title{text-align:left;font-size:1rem;font-weight:500;margin:0 0 .75rem;color:var(--text-muted)}.speedtest-card{background:var(--surface);border:1px solid var(--surface-border);border-radius:var(--radius);padding:1.5rem;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.speedtest-embed{border-radius:var(--radius-sm);overflow:hidden}.speedtest-credit{margin:.5rem 0 0;font-size:.85rem;color:var(--text-muted);text-align:right}.speedtest-credit a{color:var(--accent-cyan);text-decoration:none}.speedtest-credit a:hover{text-decoration:underline}.status-card{background:var(--surface);border:1px solid var(--surface-border);border-radius:var(--radius);padding:2rem;text-align:center;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.status-light-wrapper{display:flex;justify-content:center;margin-bottom:1rem}.status-light{width:100px;height:100px;border-radius:50%;background:var(--text-muted);box-shadow:0 0 0 4px #ffffff0d;animation:pulse 2s ease-in-out infinite}.status-light.status-connected{background:var(--accent-green);box-shadow:0 0 30px var(--glow-green),0 0 60px #4ade8033;animation:pulse 2.5s ease-in-out infinite}.status-light.status-degraded{background:var(--accent-amber);box-shadow:0 0 30px var(--glow-amber),0 0 60px #fbbf2433;animation:pulse 1.8s ease-in-out infinite}.status-light.status-disconnected{background:var(--accent-red);box-shadow:0 0 30px var(--glow-red),0 0 60px #f8717133;animation:pulse-alert 1s ease-in-out infinite}.status-light.status-unknown{background:var(--text-muted);animation:pulse 2.5s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.85;transform:scale(1.02)}}@keyframes pulse-alert{0%,to{opacity:1;box-shadow:0 0 30px var(--glow-red),0 0 60px #f8717133}50%{opacity:.9;box-shadow:0 0 45px var(--glow-red),0 0 80px #f871714d}}.status-text{font-weight:500;font-size:1.1rem;margin:0 0 .25rem;text-transform:capitalize}.latency-value{font-family:var(--font-mono);font-size:1.5rem;font-weight:600;color:var(--accent-cyan);margin:0 0 .25rem}.last-seen{font-size:.85rem;color:var(--text-muted);margin:0}.chart-card{background:var(--surface);border:1px solid var(--surface-border);border-radius:var(--radius);padding:1.25rem;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.chart-title{font-size:1rem;font-weight:500;margin:0 0 1rem;color:var(--text-muted)}.chart-container{height:320px;width:100%;border-radius:var(--radius-sm);overflow:hidden}.diagnostics-card{background:var(--surface);border:1px solid var(--surface-border);border-radius:var(--radius);padding:1.5rem;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.diagnostics-card.hidden{display:none}.diagnostics-title{font-size:1.1rem;font-weight:600;margin:0 0 1rem}.diagnostics-breakdown{font-family:var(--font-mono);font-size:.9rem;color:var(--text-muted);margin-bottom:1.25rem;padding:.75rem;background:#0003;border-radius:var(--radius-sm)}.tips-title{font-size:.95rem;font-weight:500;margin:0 0 .5rem;color:var(--text-muted)}.diagnostics-tips{margin:0;padding-left:1.25rem;color:var(--text)}.diagnostics-tips li{margin-bottom:.5rem}.diagnostics-tips li:last-child{margin-bottom:0}.app-footer{margin-top:2.5rem;padding-top:1.25rem;border-top:1px solid var(--surface-border);text-align:center;font-size:.85rem;color:var(--text-muted)}.app-footer p{margin:.25rem 0}.app-footer-support{margin-top:1rem}.app-footer-privacy{margin-top:1rem;font-size:.7rem;line-height:1.4;color:var(--text-muted);opacity:.9;max-width:42rem;margin-left:auto;margin-right:auto}.app-footer-build{margin-top:1.25rem;font-size:.7rem;color:var(--text-muted);opacity:.85}@media (max-width: 480px){#app{padding:1.25rem 1rem 2rem}.status-light{width:80px;height:80px}.chart-container{height:240px}}