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Roman",serif;--font-body:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;--font-mono:"JetBrains Mono","Courier New",monospace;--font-size-xs:12px;--font-size-sm:14px;--font-size-base:16px;--font-size-lg:18px;--font-size-xl:22px;--font-size-2xl:28px;--font-size-3xl:36px;--font-size-4xl:48px;--font-weight-regular:400;--font-weight-medium:500;--font-weight-semibold:600;--letter-spacing-tight:-0.02em;--letter-spacing-normal:0;--letter-spacing-wide:0.15em;--radius-sm:6px;--radius-md:8px;--radius-lg:12px;--radius-xl:16px;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:24px;--space-6:32px;--space-7:48px;--space-8:64px;--shadow-sm:0 1px 2px #0b3a4a0a;--shadow-md:0 2px 8px #0b3a4a0f;--shadow-lg:0 8px 24px #0b3a4a14}body{background:#f6f3ec;background:var(--color-bg);color:#0b3a4a;color:var(--color-text);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe 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ease-out}.tank-bar__fill,.tank-bar__fill--healthy{background:#2e7a7f;background:var(--color-reef)}.tank-bar__fill--low{background:#b8552a;background:var(--color-copper)}*,:after,:before{box-sizing:border-box;margin:0;padding:0}#root,body,html{height:100%}body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:var(--color-stone);color:var(--color-ink);font-family:var(--font-body);font-weight:475;line-height:1.6;min-height:100vh}:root{--color-text-muted:#4a4945}h1,h2,h3,h4{color:var(--color-ink);font-family:var(--font-display);font-weight:var(--font-weight-medium);letter-spacing:var(--letter-spacing-tight);line-height:1.2}h1{font-size:1.75rem}h2{font-size:1.25rem}h3{font-size:1.05rem}h4{font-size:.95rem}p{color:#4a4945;color:var(--color-text-muted);line-height:1.6}.app-container{display:flex;flex-direction:column;min-height:100vh;position:relative;width:100%}.page-content{flex:1 1;margin:0 auto;max-width:960px;overflow-y:auto;padding:20px 24px 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p{color:#4a4945;color:var(--color-text-muted);font-size:13px}.level-bar-bg{background:var(--color-reef-tint);border-radius:7px;display:flex;flex-direction:column;flex-shrink:0;height:80px;justify-content:flex-end;overflow:hidden;width:14px}.level-bar-fill{background:var(--color-reef);border-radius:8px;transition:height .6s ease;width:100%}.level-bar-fill--low{background:var(--color-copper)}.tank-grid{display:flex;flex-direction:column;gap:12px;max-width:560px;width:100%}@media (min-width:700px){.tank-grid--two{flex-direction:row;max-width:920px}.tank-grid--two>.card{flex:1 1;min-width:0}}.tank-row{align-items:center;display:flex;gap:20px;margin-bottom:14px}.tank-bar-vertical{background:var(--color-reef-tint);background-image:linear-gradient(0deg,#0000 0,#0000 calc(25% - 1px),#0b3a4a1a calc(25% - 1px),#0b3a4a1a 25%,#0000 0,#0000 calc(50% - 1px),#0b3a4a24 calc(50% - 1px),#0b3a4a24 50%,#0000 0,#0000 calc(75% - 1px),#0b3a4a1a calc(75% - 1px),#0b3a4a1a 75%,#0000 0);border-radius:var(--radius-md);display:flex;flex-direction:column;flex-shrink:0;height:110px;justify-content:flex-end;overflow:hidden;position:relative;width:38px}.tank-bar-vertical__fill{border-radius:var(--radius-md);transition:height .6s ease,background .2s ease;width:100%}.tank-bar-vertical__fill--normal{background:var(--color-reef)}.tank-bar-vertical__fill--half{background:var(--color-reef-deep)}.tank-bar-vertical__fill--low{background:var(--color-copper-soft)}.tank-bar-vertical__fill--critical{background:var(--color-copper)}.tank-pct{line-height:1}.tank-pct__num{font-feature-settings:"tnum";color:var(--color-ink);font-size:56px;font-weight:700;letter-spacing:-2px}.tank-pct__unit{color:var(--color-driftwood);font-size:22px;font-weight:400;margin-left:2px;vertical-align:super}.tank-pct--fault{color:var(--color-driftwood-soft);font-size:56px;font-weight:700;letter-spacing:-2px}.tank-pct__sub{color:#4a4945;color:var(--color-text-muted);font-size:12px;margin-top:6px}.tank-divider{background:var(--color-border);height:1px;margin:0 0 12px}.tank-stats{display:flex}.tank-stat{flex:1 1;text-align:center}.tank-stat__label{color:var(--color-driftwood);font-family:var(--font-display);font-size:10px;font-weight:400;letter-spacing:var(--letter-spacing-wide);margin-bottom:6px;text-transform:uppercase}.tank-stat__value{line-height:1}.tank-stat__num{font-feature-settings:"tnum";color:var(--color-ink);font-size:24px;font-weight:600}.tank-stat__unit{color:var(--color-driftwood);font-size:13px;font-weight:400;margin-left:4px}.tank-stat__cta{background:var(--color-reef-tint);border:1px solid #2e7a7f40;border-radius:var(--radius-sm);color:var(--color-reef);cursor:pointer;font-family:var(--font-body);font-size:12px;font-weight:var(--font-weight-medium);padding:6px 12px}.tank-stat__cta:hover{background:#2e7a7f2e}.tank-stat-divider{align-self:stretch;background:var(--color-border);margin:0 8px;width:1px}.device-selector{display:flex;gap:8px;margin-bottom:14px;overflow-x:auto;padding-bottom:2px}.device-pill{background:var(--color-surface);border:1px solid var(--color-border);border-radius:999px;color:#4a4945;color:var(--color-text-muted);cursor:pointer;font-family:var(--font-body);font-size:12px;font-weight:var(--font-weight-medium);padding:6px 14px;transition:background .15s,color .15s,border-color .15s;white-space:nowrap}.device-pill:hover{background:var(--color-stone-soft)}.device-pill.active{background:var(--color-ink);border-color:var(--color-ink);color:var(--color-stone)}.topbar-fault{color:var(--color-copper);font-size:11px;font-weight:var(--font-weight-semibold);letter-spacing:.04em}.last-updated{color:#4a4945;color:var(--color-text-muted);font-size:11px;margin-left:auto;margin-right:auto;margin-top:12px;max-width:560px;text-align:center}.settings-form{max-width:560px;width:100%}.settings-hint{color:#4a4945;color:var(--color-text-muted);font-size:12px;font-style:italic;padding:4px 0}.settings-tank-name{color:var(--color-ink);font-family:var(--font-display);font-size:17px;font-weight:var(--font-weight-medium);letter-spacing:-.01em;margin-bottom:12px}.settings-cal-row{display:flex;gap:10px}.settings-cal-row>.field{flex:1 1}.settings-account-label{color:#4a4945;color:var(--color-text-muted);font-size:12px;margin-bottom:4px}.settings-account-email{color:var(--color-ink);font-size:14px;font-weight:var(--font-weight-medium);margin-bottom:14px}.settings-about{align-items:center;display:flex;justify-content:space-between}.settings-about__name{color:var(--color-ink);font-family:var(--font-display);font-size:14px;font-weight:var(--font-weight-medium)}.settings-about__version{color:#4a4945;color:var(--color-text-muted);font-size:11px;margin-top:2px}.settings-about__link{color:var(--color-reef);font-size:13px;font-weight:var(--font-weight-medium);text-decoration:none}.settings-about__link:hover{text-decoration:underline}.unsaved-bar{align-items:center;background:var(--color-ink);border-radius:var(--radius-lg);bottom:78px;box-shadow:var(--shadow-lg);color:var(--color-stone);display:flex;gap:12px;left:50%;max-width:520px;padding:10px 14px 10px 18px;position:fixed;transform:translateX(-50%);width:calc(100% - 32px);z-index:200}.unsaved-bar__msg{flex:1 1;font-size:13px;font-weight:var(--font-weight-medium)}.unsaved-bar__btn{background:var(--color-stone);border:none;border-radius:var(--radius-sm);color:var(--color-ink);cursor:pointer;font-family:var(--font-body);font-size:13px;font-weight:var(--font-weight-semibold);padding:7px 16px}.unsaved-bar__btn:hover{background:var(--color-stone-soft)}.unsaved-bar__btn:disabled{cursor:not-allowed;opacity:.6}.range-row{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px}.range-row--tanks{margin-bottom:16px}.range-pill{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-sm);color:#4a4945;color:var(--color-text-muted);cursor:pointer;font-family:var(--font-body);font-size:12px;font-weight:var(--font-weight-medium);padding:6px 12px;transition:background .15s,color .15s,border-color .15s}.range-pill:hover{background:var(--color-stone-soft);color:var(--color-ink)}.range-pill.active{background:var(--color-ink);border-color:var(--color-ink);color:var(--color-stone)}.chart-card{padding:14px}.chart-eyebrow{color:var(--color-driftwood);font-family:var(--font-display);font-size:12px;font-weight:var(--font-weight-medium);letter-spacing:var(--letter-spacing-wide);margin-bottom:10px;text-transform:uppercase}.chart-canvas{display:block;height:180px;width:100%}.chart-empty{align-items:center;display:flex;height:180px;justify-content:center}.chart-empty--text{color:#4a4945;color:var(--color-text-muted);font-size:13px}.chart-legend{display:flex;flex-wrap:wrap;gap:16px;margin-top:12px}.chart-legend__item{align-items:center;color:#4a4945;color:var(--color-text-muted);display:flex;font-size:12px;gap:6px}.chart-legend__swatch{border-radius:1px;display:inline-block;height:2px;width:14px}.chart-legend__swatch--reef{background:var(--color-reef)}.chart-legend__swatch--moss{background:var(--color-moss)}.chart-legend__swatch--cal{border-top:2px dashed var(--color-driftwood);height:0}.chart-footnote{color:#4a4945;color:var(--color-text-muted);font-size:11px;line-height:1.6;margin-bottom:4px;margin-top:6px;text-align:center}.add-device-cta{align-items:center;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);cursor:pointer;display:flex;font-family:var(--font-body);justify-content:space-between;margin-bottom:16px;padding:14px 18px;transition:background .15s,border-color 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