:root{--bg:#f5f5f5;--surface:#f9f9f9;--card:#ffffff;--ink:#1a1c1c;--muted:#5f5e5e;--line:#e0e0e0;--accent:#b80023;--accent-cta:#e21833;--accent-ink:#93001a;--accent-soft:#ffdad8;--charcoal:#2d2d2d;--ok:#107c10;--ok-bg:#e6f4e6;--warn:#f5a623;--warn-bg:#fff4e0;--crit:#d11111;--crit-bg:#fde8e8;--nav:#2d2d2d;--nav-active:#e21833;--radius:8px;--shadow:0 1px 2px rgba(26,28,28,.04);--font:system-ui,-apple-system,"Segoe UI",sans-serif;--mono:ui-monospace,"Cascadia Mono",Consolas,monospace}*{box-sizing:border-box}html{font-size:16px;-webkit-text-size-adjust:100%}body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);min-height:100dvh}a{color:var(--accent-ink);text-decoration:none}.app-shell{min-height:100dvh;display:flex;flex-direction:column;padding-bottom:4.75rem}.app-shell.no-nav{padding-bottom:0}.topbar{position:sticky;top:0;z-index:1030;background:var(--charcoal);color:#fff;padding:.7rem 1rem;display:flex;align-items:center;justify-content:space-between;gap:.75rem;width:100%;max-width:640px;margin:0 auto;box-sizing:border-box}.topbar .brand-wrap{display:flex;align-items:center;gap:.65rem;min-width:0}.topbar .brand-logo{height:28px;width:auto;display:block;flex-shrink:0}.topbar .brand{font-weight:700;letter-spacing:.01em;font-size:.9rem;line-height:1.2;min-width:0}.topbar .brand small{display:block;font-weight:500;opacity:.7;font-size:.68rem;letter-spacing:.06em;text-transform:uppercase;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.topbar .chip{font-size:.68rem;padding:.2rem .55rem;border-radius:4px;flex-shrink:0;background:rgba(226,24,51,.18);color:#ffb3b0;border:1px solid rgba(226,24,51,.4)}.page{flex:1;padding:1rem;max-width:640px;margin:0 auto;width:100%}.page-title{font-size:1.25rem;font-weight:700;margin:0 0 .25rem}.page-sub{color:var(--muted);font-size:.875rem;margin:0 0 1rem}.datetime-panel .datetime-now{font-size:.8rem;font-weight:600;color:var(--muted);text-transform:capitalize;letter-spacing:.02em}.datetime-panel .datetime-clock{font-family:var(--mono);font-size:1.85rem;font-weight:700;line-height:1.15;margin:.2rem 0 0;color:var(--ink);letter-spacing:.02em}.action-grid{display:grid;grid-template-columns:1fr 1fr;gap:.65rem;margin-bottom:.5rem}.action-card{display:flex;flex-direction:column;justify-content:center;gap:.2rem;min-height:4.5rem;padding:.9rem .85rem;background:#fff;border:1px solid var(--line);border-radius:var(--radius);color:var(--ink);box-shadow:var(--shadow);text-decoration:none}.action-card.accent{background:var(--accent-cta);border-color:var(--accent-cta);color:#fff}.action-card .action-title{font-size:.95rem;font-weight:700}.action-card .action-sub{font-size:.72rem;opacity:.8;font-weight:500}.card-panel{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:1rem;margin-bottom:.85rem}.card-panel h2{font-size:.75rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:0 0 .75rem;font-weight:600}.stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:.65rem}.stat{background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:.75rem}.stat .label{font-size:.7rem;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}.stat .value{font-family:var(--mono);font-size:1.35rem;font-weight:700;line-height:1.2;margin-top:.2rem}.stat .unit{font-size:.75rem;font-weight:500;color:var(--muted);margin-left:.15rem}.temp-row{display:grid;grid-template-columns:1fr 1fr;gap:.75rem}.temp-gauge{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1rem .85rem .9rem;overflow:hidden}.temp-gauge::before{content:"";position:absolute;inset:auto 0 0 0;height:3px;background:linear-gradient(90deg,var(--accent),var(--accent-cta))}.temp-gauge .name{font-size:.75rem;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}.temp-gauge .reading{font-family:var(--mono);font-size:2rem;font-weight:700;line-height:1.1;margin:.35rem 0 .15rem}.temp-gauge .meta{font-size:.75rem;color:var(--muted)}.bar-track{height:8px;border-radius:999px;background:#e8e8e8;margin-top:.75rem;position:relative;overflow:hidden}.bar-fill{height:100%;border-radius:999px;background:var(--ok);width:0;transition:width .4s ease}.bar-fill.warn{background:var(--warn)}.bar-fill.crit{background:var(--crit)}.badge-status{display:inline-flex;align-items:center;gap:.35rem;font-size:.7rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;padding:.25rem .55rem;border-radius:4px}.badge-status.ok{background:var(--ok-bg);color:var(--ok)}.badge-status.warn{background:var(--warn-bg);color:#9a6400}.badge-status.crit{background:var(--crit-bg);color:var(--crit)}.badge-status::before{content:"";width:.45rem;height:.45rem;border-radius:50%;background:currentColor}.kv{display:grid;grid-template-columns:1fr auto;gap:.4rem .75rem;font-size:.9rem}.kv dt{color:var(--muted)}.kv dd{margin:0;font-family:var(--mono);font-size:.85rem;text-align:right}.bottom-nav{position:fixed;left:50%;bottom:0;z-index:1040;transform:translateX(-50%);width:100%;max-width:640px;background:var(--nav);display:grid;grid-template-columns:repeat(4,1fr);padding:.35rem .25rem calc(.35rem+env(safe-area-inset-bottom));border-top:1px solid rgba(255,255,255,.08);border-radius:12px 12px 0 0}.bottom-nav a{color:rgba(255,255,255,.55);text-align:center;padding:.45rem .2rem;font-size:.65rem;font-weight:600;letter-spacing:.02em;text-transform:uppercase;display:flex;flex-direction:column;align-items:center;gap:.2rem}.bottom-nav a svg{width:1.35rem;height:1.35rem;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.bottom-nav a.active{color:#ffb3b0}.login-wrap{min-height:100dvh;display:flex;align-items:center;justify-content:center;padding:1.25rem;background:linear-gradient(180deg,#fff 0%,var(--accent-soft) 100%)}.login-card{width:100%;max-width:380px;background:var(--card);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);padding:1.5rem 1.25rem 1.25rem}.login-logo{height:40px;width:auto;margin-bottom:1rem;display:block}.login-card h1{font-size:1.35rem;margin:0 0 .25rem}.login-card p{color:var(--muted);font-size:.875rem;margin:0 0 1.25rem}.form-label{font-size:.8rem;font-weight:600;color:var(--muted)}.form-control,.form-select{border-color:#ccc;border-radius:6px;padding:.65rem .75rem;font-size:1rem}.form-control:focus,.form-select:focus{border-color:var(--accent);box-shadow:0 0 0 .2rem rgba(184,0,35,.18)}.btn-accent{--bs-btn-bg:var(--accent-cta);--bs-btn-border-color:var(--accent-cta);--bs-btn-hover-bg:var(--accent);--bs-btn-hover-border-color:var(--accent);--bs-btn-color:#fff;--bs-btn-hover-color:#fff;--bs-btn-active-bg:var(--accent);--bs-btn-active-border-color:var(--accent);--bs-btn-active-color:#fff;border-radius:6px;font-weight:600;padding:.7rem 1rem}.btn-ghost{border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:6px;font-weight:600}.btn-danger-soft{border:1px solid #f5c2c0;background:var(--crit-bg);color:var(--crit);border-radius:6px;font-weight:600;padding:.7rem 1rem}.btn-danger-soft:hover{background:#f8d7d7;border-color:#e8a0a0;color:var(--crit)}.fw-version{font-family:var(--mono);font-size:2rem;font-weight:700;line-height:1.1;color:var(--accent);letter-spacing:.02em}.ota-progress{height:8px;border-radius:999px;background:#e8e8e8;overflow:hidden}.ota-progress-bar{height:100%;width:0;background:linear-gradient(90deg,var(--accent),var(--accent-cta));transition:width .15s linear}.ota-divider{font-size:.7rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin:0 0 .75rem;padding-top:.35rem;border-top:1px solid var(--line)}.alert-soft{border:1px solid transparent;border-radius:6px;font-size:.85rem;padding:.65rem .85rem}.alert-soft.err{background:var(--crit-bg);color:var(--crit);border-color:#f5c2c0}.alert-soft.ok{background:var(--ok-bg);color:var(--ok);border-color:#c8e6c9}.ssid-list{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff}.ssid-list-head{font-size:.7rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:var(--muted);padding:.55rem .75rem;background:var(--surface);border-bottom:1px solid var(--line)}.ssid-item{width:100%;display:flex;flex-direction:column;align-items:flex-start;gap:.15rem;text-align:left;border:0;border-bottom:1px solid var(--line);background:#fff;padding:.7rem .75rem;cursor:pointer}.ssid-item:last-child{border-bottom:0}.ssid-item.active{background:var(--accent-soft)}.ssid-item .ssid-name{font-weight:700;font-size:.9rem;color:var(--ink)}.ssid-item .ssid-meta{font-size:.72rem;color:var(--muted);font-family:var(--mono)}.ssid-empty{padding:.85rem .75rem;font-size:.85rem;color:var(--muted)}.ssid-bars{display:inline-block;width:14px;height:10px;margin-right:.25rem;background:linear-gradient(to top,currentColor 0,currentColor 100%);clip-path:polygon(0 100%,25% 100%,25% 60%,50% 60%,50% 35%,75% 35%,75% 15%,100% 15%,100% 100%,0 100%);opacity:.35;vertical-align:-1px}.ssid-bars[data-bars="2"]{opacity:.5}.ssid-bars[data-bars="3"]{opacity:.75}.ssid-bars[data-bars="4"]{opacity:1}.table-readings{font-size:.8rem;margin:0}.table-readings th{font-size:.7rem;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);font-weight:600;white-space:nowrap}.table-readings td{font-family:var(--mono);vertical-align:middle}.pulse-dot{width:.55rem;height:.55rem;border-radius:50%;background:var(--ok);box-shadow:0 0 0 0 rgba(16,124,16,.5);animation:pulse 1.6s infinite}.pulse-dot.off{background:var(--muted);animation:none;box-shadow:none}@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(16,124,16,.45)}70%{box-shadow:0 0 0 8px rgba(16,124,16,0)}100%{box-shadow:0 0 0 0 rgba(16,124,16,0)}}@media (prefers-reduced-motion:reduce){.pulse-dot,.bar-fill{animation:none;transition:none}}@media (min-width:576px){.page{padding:1.25rem}.temp-gauge .reading{font-size:2.35rem}}