:root{color-scheme:dark;--bg:#080b08;--surface:#101610;--border:#2c3a2b;--text:#f3f6f0;--muted:#b1beae;--green:#a5f000;font-family:Arial,Helvetica,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);line-height:1.6}a{color:inherit}button{font:inherit;cursor:pointer}button,a{ -webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible{outline:3px solid var(--green);outline-offset:5px}header,main,footer{width:min(1160px,calc(100% - 48px));margin:auto}header{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:25px 0}.logo{font-size:1.65rem;font-weight:900;font-style:italic;letter-spacing:-.06em;text-decoration:none;white-space:nowrap}.logo span{color:var(--green)}.logo small{display:block;font:10px monospace;letter-spacing:.2em;margin-top:1px;color:var(--muted)}.back{font-size:.875rem;text-decoration:none;color:var(--muted)}.preview-banner{border-block:1px solid var(--border);padding:13px 24px;text-align:center;font:11px/1.8 monospace;letter-spacing:.1em;color:var(--green);background:#a5f00006}.banner-note{letter-spacing:0;color:var(--muted);margin-left:18px}.dot{display:inline-block;width:7px;height:7px;background:var(--green);border-radius:50%;margin-right:8px}.intro{padding:65px 0 50px;display:grid;grid-template-columns:1.4fr 1fr;gap:70px;align-items:center}.eyebrow{font:11px/1.7 monospace;letter-spacing:.13em;color:var(--green);margin:0 0 16px}h1{font-size:clamp(2.7rem,5.3vw,4.6rem);line-height:1.02;letter-spacing:-.06em;margin:0 0 24px}h1 span{color:var(--green)}.lead{max-width:560px;font-size:1.05rem;color:var(--muted);margin:0}.intro-note{border-left:1px solid var(--border);padding:0 0 0 32px;color:var(--muted);max-width:360px}.note-symbol{display:block;color:var(--green);font-size:2.5rem;line-height:1}.intro-note .eyebrow{font-size:10px;margin:24px 0 0}.tabs{display:flex;gap:25px;border-bottom:1px solid var(--border)}.tabs button{background:transparent;color:var(--muted);border:0;border-bottom:3px solid transparent;padding:17px 0;font-size:.9rem;font-weight:700}.tabs button.active{color:var(--green);border-color:var(--green)}.panel{padding:35px 0 60px}.panel[hidden]{display:none}.section-top{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:24px}.section-top .eyebrow{margin-bottom:8px}h2{font-size:clamp(1.7rem,3vw,2.4rem);letter-spacing:-.045em;line-height:1.15;margin:0}h3{font-size:1.45rem;letter-spacing:-.03em;line-height:1.25;margin:0 0 12px}.label{border:1px solid #425b2e;padding:6px 10px;font:10px/1.6 monospace;letter-spacing:.05em;color:var(--green);white-space:nowrap}.dashboard{display:grid;grid-template-columns:1.35fr 1fr;gap:20px}.device-card{background:radial-gradient(ellipse at 50% 40%,#a5f0000c,transparent 60%),var(--surface);border:1px solid var(--border);border-top:3px solid var(--green);padding:25px 30px 0;--state:var(--green)}.device-top{display:flex;align-items:center;justify-content:space-between;gap:14px;font-size:.85rem;font-weight:800;letter-spacing:.08em}.pill{font:10px/1.5 monospace;letter-spacing:0;background:#a5f00012;color:var(--state);border:1px solid var(--state);padding:5px 8px;border-radius:30px}.water-icon{width:52px;height:52px;color:var(--state);margin:32px 0 20px}.water-icon svg{width:100%;height:100%}.device-card .eyebrow{color:var(--muted);margin-bottom:10px}.device-card h3{font-size:clamp(3rem,6vw,4.5rem);line-height:1;color:var(--state);letter-spacing:-.055em;margin:0 0 14px}.device-card>p:not(.eyebrow){color:var(--muted);margin:0 0 32px;min-height:52px}.device-bottom{display:flex;gap:40px;border-top:1px solid var(--border);padding:18px 0;font:10px/1.6 monospace;color:var(--muted)}.device-bottom strong{display:block;color:var(--text);font-weight:400;font-size:12px;margin-top:4px}.side-cards{display:grid;gap:20px}.small-card{border:1px solid var(--border);background:var(--surface);padding:24px}.small-card p:not(.eyebrow){color:var(--muted);font-size:.9rem;margin:0 0 15px}.subdued{color:var(--muted);border-color:var(--border)}.text-button{background:transparent;border:0;padding:0;color:var(--green);font-weight:700;font-size:.875rem;text-align:left}.demo-control{display:flex;justify-content:space-between;gap:25px;align-items:center;border:1px solid var(--border);padding:22px 25px;margin-top:20px}.demo-control strong{font-size:.9rem}.demo-control p{font-size:.8rem;color:var(--muted);max-width:440px;margin:5px 0 0}.state-buttons{display:flex;gap:8px;flex-wrap:wrap}.state-buttons button{border:1px solid var(--border);background:transparent;color:var(--muted);padding:9px 12px;font-size:.8rem;min-height:44px}.state-buttons button.selected{border-color:var(--green);color:var(--green);background:#a5f0000a}.steps{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}.steps article{border:1px solid var(--border);padding:28px;background:var(--surface)}.step-number{display:block;font:24px monospace;color:var(--green);margin:0 0 30px}.steps p,.notice p{color:var(--muted);margin:0;font-size:.95rem}.notice{border-left:3px solid var(--green);padding:20px 24px;margin:25px 0;background:var(--surface)}.notice p{margin-top:6px}.primary{background:var(--green);color:#0b1104;border:1px solid var(--green);font-size:.9rem;font-weight:800;padding:13px 20px;display:inline-flex;align-items:center;justify-content:center;text-decoration:none;min-height:48px}.primary:hover{background:#c1ff38}.account-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:60px;align-items:start;padding-top:20px}.account-grid h2{font-size:clamp(2.3rem,4.8vw,3.6rem);margin-bottom:24px}.account-features{padding-left:20px;color:var(--muted);font-size:.95rem;line-height:2}.account-features li::marker{color:var(--green)}.access-card{border:1px solid var(--border);border-top:3px solid var(--green);background:var(--surface);padding:32px}.access-card h3{margin:25px 0 16px;font-size:1.8rem}.access-card p{color:var(--muted);font-size:.95rem}.access-card .primary{margin:12px 0 24px;display:flex}.access-card .text-button{display:block}footer{border-top:1px solid var(--border);padding:25px 0;display:flex;align-items:center;justify-content:space-between;gap:20px;color:var(--muted);font-size:.75rem}footer .logo{font-size:1.2rem}footer p{margin:0}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media(max-width:800px){.intro{gap:35px}.dashboard{grid-template-columns:1fr}.side-cards{grid-template-columns:1fr 1fr}.demo-control{align-items:start;flex-direction:column;gap:18px}.account-grid{gap:30px}footer{flex-wrap:wrap}}@media(max-width:560px){header,main,footer{width:calc(100% - 32px)}header{padding:20px 0}.back{font-size:.75rem}.logo{font-size:1.4rem}.preview-banner{padding:10px 16px}.banner-note{display:block;margin:4px 0 0;font-size:10px}.intro{grid-template-columns:1fr;gap:25px;padding:40px 0 30px}.intro-note{padding-left:16px;max-width:none}.intro-note p{font-size:.85rem;margin:0}.note-symbol,.intro-note .eyebrow{display:none}.tabs{gap:16px;justify-content:space-between}.tabs button{font-size:.75rem;padding:15px 0}.section-top{align-items:start;flex-direction:column;gap:12px}.panel{padding-top:25px}.side-cards,.steps,.account-grid{grid-template-columns:1fr}.device-card{padding:22px 22px 0}.device-card h3{font-size:3.4rem}.demo-control{padding:20px}.state-buttons{width:100%}.state-buttons button{flex:1;padding:9px 8px}.access-card{padding:24px}footer{gap:12px}footer p{width:100%;order:3}}

.account-form{display:grid;gap:16px;margin-top:24px}.account-form label{display:grid;gap:7px;color:var(--muted);font-size:.9rem}.account-form input{width:100%;min-width:0;min-height:48px;padding:12px;background:var(--bg);border:1px solid #516149;color:var(--text);font:inherit}.account-form input:focus-visible{outline:2px solid var(--green);outline-offset:3px}.account-form label[hidden]{display:none}.form-status{font-size:.875rem;overflow-wrap:anywhere;min-height:1.5em;color:var(--muted)}.form-status.error{color:#ffb45b}.form-note{font-size:.8rem;color:var(--muted);margin-top:16px}.auth-modes{gap:6px}.auth-modes button{font-size:.75rem;flex:1;padding:8px}.primary:disabled{opacity:.6;cursor:wait}.signed-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap}.real-devices{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}.empty-state{color:var(--muted);padding:24px;border:1px dashed var(--border);grid-column:1/-1}#signed-account[hidden],#account-login[hidden],#owner-note[hidden],#password-recovery[hidden]{display:none}.account-form p{margin:0}.small-card>p:not(.eyebrow){color:var(--muted)}@media(max-width:560px){.real-devices{grid-template-columns:1fr}.auth-modes{flex-wrap:wrap}.auth-modes button{flex:auto}}

.camera-card{grid-column:1/-1}.camera-image{display:block;width:100%;max-height:560px;aspect-ratio:4/3;object-fit:contain;background:#050805;border:1px solid var(--border);margin:20px 0}.camera-image[hidden]{display:none}.camera-note{font-size:.8rem}

/* Compact account dashboard. */
#signed-account .notice{padding:14px 18px;margin:20px 0}#signed-account .notice p{font-size:.85rem}
.ai-insight{border:1px solid var(--border);border-left:3px solid var(--green);background:radial-gradient(ellipse at top right,#a5f0000b,transparent 65%),var(--surface);padding:22px 24px;margin:24px 0 32px}
.ai-heading{display:flex;justify-content:space-between;align-items:start;gap:16px}.ai-heading .eyebrow{margin:0 0 6px}.ai-heading h3{font-size:1.25rem;margin:0}.ai-summary{font-size:1rem;line-height:1.65;margin:18px 0 12px;white-space:pre-line;overflow-wrap:anywhere}.ai-meta{font:11px/1.7 monospace;color:var(--muted);margin:0}
.real-devices{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.node-card{position:relative;padding:20px;min-width:0}.node-card .eyebrow{font-size:10px;margin-bottom:7px}.node-card h3{font-size:1.15rem;margin:0 0 14px;padding-right:0;overflow-wrap:anywhere}.node-card>p.node-status{font:11px/1.5 monospace;color:var(--muted);margin:0 0 18px}.node-status:before{content:'';display:inline-block;width:6px;height:6px;border-radius:50%;background:#7c897e;margin-right:7px}.node-card[data-online="true"] .node-status:before{background:var(--green)}.node-readings{min-height:54px;margin-bottom:16px}.node-readings>p{font-size:1.35rem;font-weight:700;line-height:1.3;margin:0 0 6px;overflow-wrap:anywhere}.node-readings>p+p{font-size:.95rem;color:var(--muted);font-weight:400}.node-card>p.node-location{border-top:1px solid var(--border);padding-top:12px;margin:0 0 4px;font-size:.8rem}.node-card>p:last-child{font:10px/1.6 monospace;margin-bottom:0}.node-alert{border-color:#ff6358}.node-alert .node-readings{color:#ff857b}.camera-card{grid-column:1/-1}.camera-card .node-readings:empty{display:none}.camera-card .camera-image{max-height:460px;margin:16px 0}.camera-card>p.camera-note{font:11px/1.6 monospace}
@media(max-width:800px){.real-devices{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:560px){.ai-insight{padding:18px}.ai-heading{flex-wrap:wrap;gap:10px}.real-devices{gap:12px}.node-card{padding:16px}.node-card h3{font-size:1rem}.node-readings>p{font-size:1.15rem}}@media(max-width:360px){.real-devices{grid-template-columns:1fr}}

.unlink-device{display:block;margin-top:18px;min-height:44px;padding:9px 12px;border:1px solid var(--border);background:transparent;color:var(--muted);font-size:.8rem}.unlink-device:hover{border-color:#ff857b;color:#ff857b}.unlink-device:disabled{opacity:.6;cursor:wait}

.push-card{margin:24px 0}.push-card .signed-actions{flex-wrap:wrap;gap:16px}.push-card button{white-space:normal}

.push-card [hidden]{display:none!important}