@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;450;500;550;600;650;700&family=Manrope:wght@400;500;600;650;700;750;800&display=swap');
:root{--ink:#213d35;--muted:#758079;--green:#254d3e;--mint:#e4ecdf;--bg:#f6f7f2;--line:#e4e8df;--white:#fff;--accent:#d4e5ac}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:14px 'DM Sans',sans-serif}button,input{font:inherit}button,a,input{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #88ac6c;outline-offset:3px}button{color:inherit}a{color:inherit;text-decoration:none}.sidebar{position:fixed;top:0;bottom:0;left:0;width:242px;background:#f0f2e9;border-right:1px solid #e0e5d9;padding:34px 23px;display:flex;flex-direction:column}.brand{display:flex;align-items:center;font-family:Manrope,sans-serif;font-weight:800;font-size:31px;letter-spacing:-1.6px}.brand-icon{display:inline-flex;align-items:center;justify-content:center;background:#244e40;color:#d5e8b4;width:34px;height:38px;border-radius:18px 18px 18px 4px;margin-right:10px;font-size:28px}.brand-dot{color:#83a366}.workspace{display:flex;align-items:center;gap:10px;margin:39px 0 27px;padding-bottom:25px;border-bottom:1px solid #dce2d4}.house{font-size:28px}.workspace b{font-size:12px;font-weight:600}.workspace small{display:block;font-size:10px;color:var(--muted);margin-top:5px}nav{display:grid;gap:8px}nav button{display:flex;align-items:center;gap:13px;text-align:left;background:none;border:0;padding:14px 13px;border-radius:8px;font-size:12px;font-weight:600;color:#667168}nav button span{font-size:19px;line-height:20px;width:21px}nav button:hover{background:#e5eadc}nav button.active{background:#264e3f;color:#f6faef}.sidebar-note{margin-top:auto;padding:50px 11px 26px}.sidebar-note>span{display:block;font-size:34px;color:#7a9962;margin-bottom:13px}.sidebar-note b{font-family:Manrope;font-size:16px;line-height:1.6;letter-spacing:-.4px}.sidebar-note p{color:var(--muted);font-size:11px;line-height:1.8}.device-note{border-top:1px solid #dce2d4;padding-top:20px;color:#7a8276;font-size:10px;display:flex;align-items:center;gap:7px}.status-dot{background:#84a86d;width:6px;height:6px;border-radius:50%}.device-note button{background:none;border:0;margin-left:auto}.app{margin-left:242px}.topbar{height:80px;padding:0 43px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);font-size:9px;letter-spacing:1.7px;color:#7d877c}.topbar>div{display:flex;align-items:center;gap:22px;letter-spacing:0;font-size:11px}.icon-button{background:none;border:1px solid #dde3d8;border-radius:50%;width:31px;height:31px;font-size:17px}main{max-width:1450px;margin:auto;padding:35px 43px 20px}.page-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:27px}.eyebrow{font-size:9px;font-weight:700;letter-spacing:1.8px;color:#7d8c7e}h1,h2,h3{font-family:Manrope,sans-serif}h1{font-size:33px;letter-spacing:-1.4px;font-weight:650;margin:9px 0 9px;line-height:1.25}.page-heading 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282px;gap:21px}.card{background:#fff;border:1px solid var(--line);border-radius:11px}.card-heading{padding:24px 25px 0;display:flex;align-items:center;justify-content:space-between;gap:10px}h2{font-size:17px;font-weight:650;letter-spacing:-.45px;margin:6px 0}.text-button{border:0;background:none;font-size:11px;font-weight:600;padding:8px 0;color:#536b4c}.tank-body{display:flex;align-items:center;padding:0 26px 20px 11px;min-height:276px;gap:10px}.tank-visual{flex:1;min-width:0;text-align:center}.tank-visual svg{width:100%;max-width:330px}.tank-caption{display:block;color:#9aa399;font-size:9px;margin-top:-8px}.tank-summary{width:43%;padding-top:15px}.status-pill{font-size:9px;padding:6px 9px;display:inline-block;border-radius:5px;background:#eef4e6;color:#688351}.status-pill.low{background:#fff1dc;color:#96621e}.water-amount{margin:19px 0 21px}.water-amount>span{display:block;font-size:34px;letter-spacing:-1.5px;font-family:Manrope;font-weight:650}.water-amount 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0;letter-spacing:-.5px}.metric strong small{font-family:'DM Sans';font-weight:400;color:#8d9686;font-size:10px;letter-spacing:0}.metric p{font-size:9px;color:#9aa18f;margin:0}.chart-key{font-size:9px;color:#8b9383;display:flex;gap:7px;align-items:center}.chart-key i{width:7px;height:7px;border-radius:50%;background:#739b81}.reserve-key{color:#baa86a;margin-left:14px}.chart{padding:10px 19px 0}.chart svg{display:block;width:100%;height:auto;max-height:240px}.chart-foot{display:flex;justify-content:space-between;align-items:center;border-top:1px solid #f0f2eb;padding:11px 25px}.chart-foot>span{color:#9aa18f;font-size:9px}.bottom-callout{display:flex;align-items:center;gap:18px;margin-top:24px;padding:21px 23px;border:1px solid #e2e7d8;background:#eff2e7;border-radius:10px}.bottom-callout>span{font-size:30px;color:#8a9d67}.bottom-callout b{font-size:11px;font-weight:600}.bottom-callout p{margin:6px 0 0;font-size:10px;color:#89927e}.bottom-callout 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h2{font-size:23px;margin-top:6px}.close{background:#f1f4e9;border:0;border-radius:50%;font-size:23px;width:32px;height:32px}#info-dialog p{font-size:13px;line-height:1.8;color:#7c8a71}#toast{position:fixed;bottom:26px;left:calc(50% + 100px);transform:translateX(-50%);padding:13px 22px;background:#274b3c;color:white;border-radius:8px;font-size:12px;box-shadow:0 5px 20px #12332220;opacity:0;pointer-events:none;transition:opacity .2s;z-index:10}#toast.show{opacity:1}[hidden]{display:none!important}.article-page{max-width:780px;margin:60px auto;padding:0 25px}.article-page h1{font-size:40px;margin:35px 0 20px}.article-page p,.article-page li{font-size:16px;line-height:1.9;color:#66765c}.article-page h2{font-size:24px;margin-top:35px}.article-page .formula{padding:22px;background:#eaf0df;border-radius:10px;font-weight:600;color:#39542c}.article-page .button{margin:24px 0;font-size:14px}
@media(min-width:1450px){main{padding-top:45px}.tank-body{min-height:290px}.tank-visual svg{max-width:345px}.water-amount>span{font-size:40px}.tank-spec{font-size:12px}.metric{padding:27px}.metric div>span{font-size:12px}.metric p{font-size:11px}}
@media(max-width:1150px){.sidebar{width:205px;padding:30px 17px}.app{margin-left:205px}main{padding:28px 25px}.topbar{padding:0 25px}.overview-top{grid-template-columns:minmax(0,1fr) 245px;gap:16px}.reserve-card{padding:25px 20px}.tank-body{gap:0;padding-right:20px}.tank-summary{width:48%}.water-amount>span{font-size:29px}.metrics{gap:12px}.metric{padding:20px 13px;gap:10px}.metric-icon{display:none}.planner-grid{grid-template-columns:280px minmax(0,1fr)}.guide{padding:23px}.guide h2{font-size:19px}h1{font-size:29px}}
@media(max-width:900px){.sidebar{width:180px;padding:26px 14px}.app{margin-left:180px}.brand{font-size:25px}.brand-icon{width:29px;height:33px;font-size:24px;margin-right:8px}.workspace{margin-top:28px}.workspace small{font-size:9px}nav button{font-size:11px;padding:13px 9px;gap:7px}.overview-top{grid-template-columns:1fr}.tank-body{min-height:260px}.reserve-card{display:grid;grid-template-columns:1fr 1fr;gap:8px 28px;padding:25px}.reserve-card .eyebrow{grid-column:1}.reserve-card .big-days{grid-column:1;margin:2px 0}.reserve-card>p{grid-column:1}.reserve-divider{display:none}.reserve-advice{grid-column:2;grid-row:1/3;padding-top:4px}.reserve-card .button{grid-column:2;grid-row:3}.reserve-card>small{grid-column:2;margin-top:0}.tank-visual svg{max-width:290px}.tank-summary{width:46%}.planner-grid{grid-template-columns:1fr}.guide-grid{grid-template-columns:1fr}.guide{min-height:0}.guide h2{margin-top:14px}.guide p{margin-bottom:10px}.scenario-stats strong{font-size:23px}.chart-key{font-size:8px}.page-heading{gap:12px}.page-heading .button{white-space:nowrap;padding:12px}.topbar>span{font-size:8px;letter-spacing:1px}h1{font-size:26px}.demo-notice{font-size:10px}.chart-foot{gap:12px}.chart-foot .text-button{font-size:10px;text-align:right}}
@media(max-width:650px){.sidebar{position:static;width:auto;border-right:0;border-bottom:1px solid #dce4d3;padding:17px 18px 0;display:block}.brand{font-size:26px}.brand-icon{height:30px;width:28px}.workspace,.sidebar-note,.device-note{display:none}nav{display:flex;gap:4px;overflow-x:auto;margin-top:17px;padding-bottom:12px}nav button{flex-shrink:0;padding:10px 11px;font-size:10px;gap:5px}nav button span{font-size:16px;width:17px}.app{margin-left:0}.topbar{height:48px;padding:0 20px}.topbar>span{font-size:7px}.topbar>div{font-size:10px;gap:12px}.icon-button{width:27px;height:27px}main{padding:25px 18px}.page-heading{align-items:flex-start;flex-wrap:wrap;gap:18px;margin-bottom:20px}h1{font-size:29px}.page-heading p{font-size:11px}.eyebrow{font-size:8px}.page-heading .button{font-size:10px;min-height:36px;padding:9px 12px}.demo-notice{display:block;line-height:1.7;padding:10px 13px}.demo-notice button{display:block;padding:6px 0 0}.card-heading{padding:21px 20px 0}.card-heading h2{font-size:15px}.card-heading .text-button{font-size:10px}.tank-body{padding:0 18px 17px 0;gap:0;min-height:250px}.tank-visual svg{width:100%}.tank-summary{width:48%}.water-amount{margin:15px 0}.water-amount>span{font-size:30px}.tank-spec{font-size:9px;padding:8px 0}.tank-caption{font-size:7px;padding-left:10px;line-height:1.5}.status-pill{font-size:8px;padding:5px 7px}.reserve-card{gap:8px 19px;padding:22px 20px}.reserve-advice b{font-size:10px}.reserve-advice p{font-size:9px}.reserve-card>p{font-size:9px}.big-days strong{font-size:56px}.big-days span{font-size:10px}.reserve-card>small{font-size:7px}.reserve-card .button{font-size:10px;min-height:36px;padding:10px}.metrics{grid-template-columns:1fr;margin:16px 0;gap:9px}.metric{padding:17px 20px;align-items:center;gap:15px}.metric-icon{display:flex}.metric>div{display:grid;grid-template-columns:1fr auto;align-items:center;flex:1;gap:5px 8px}.metric div>span{font-size:10px}.metric strong{margin:0;font-size:24px;grid-column:2;grid-row:1/3;text-align:right}.metric p{grid-column:1;font-size:9px}.projection .card-heading{align-items:flex-start;flex-direction:column;gap:12px}.chart{padding:6px 6px 0}.chart-foot{display:block;padding:13px 20px}.chart-foot>span{display:block;font-size:8px}.chart-foot .text-button{font-size:9px;margin-top:5px}.bottom-callout{padding:18px 17px;gap:13px;flex-wrap:wrap}.bottom-callout b{font-size:10px}.bottom-callout p{font-size:9px}.bottom-callout button{margin-left:40px;padding:0;font-size:10px}footer{flex-wrap:wrap;gap:12px;margin-top:27px}footer button{margin-left:0;font-size:9px}#toast{left:50%;max-width:90%;width:max-content}.form-card{padding:23px}.scenario-stats{gap:12px;padding:12px 19px 22px}.scenario-stats strong{font-size:18px}.scenario-stats span{font-size:8px}.scenario-stats small{font-size:8px}#readings-table{overflow-x:auto}th,td{padding:14px;font-size:10px}td.note{min-width:90px}#readings .card-heading{flex-direction:column;align-items:flex-start;gap:12px}.article-page{margin:30px auto}.article-page h1{font-size:31px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}

/* Improve readability of key planning information. */
.tank-spec{font-size:11px}.tank-summary .muted{font-size:10px}.reserve-card>p,.reserve-advice p{font-size:11px}.metric div>span{font-size:11px}.metric p{font-size:10px}.chart-foot>span{font-size:10px}.status-pill{font-size:10px}.tank-caption{font-size:10px}
@media(max-width:650px){.tank-spec{font-size:10px}.tank-caption{font-size:8px}.tank-summary .muted{font-size:9px}.reserve-card>p,.reserve-advice p{font-size:10px}.metric div>span{font-size:11px}.metric p{font-size:10px}.status-pill{font-size:9px}.topbar>span{font-size:8px}}
/* Integrated water tools: readable labels, keyboard navigation and consent controls. */
.skip-link{position:absolute;left:14px;top:-90px;z-index:2000;background:#fff;padding:12px;border-radius:6px}.skip-link:focus{top:12px}.checkbox-label{display:flex;align-items:flex-start;gap:10px;font-weight:500;line-height:1.7}.checkbox-label input{width:18px;height:18px;flex:0 0 18px;margin-top:2px}.storage-warning{padding:15px;margin-bottom:20px;border:1px solid #c4944b;background:#fff4db;border-radius:7px;color:#674214;font-size:13px}.method a,#info-dialog a{text-decoration:underline;text-underline-offset:3px}.method h3{font-size:16px}.tank-caption,.tank-spec span,.tank-summary .muted,.metric p,.metric div>span,.chart-foot>span{color:#626f62}.muted{color:#65735f}.status-pill{color:#526b3c}.reserve-card>p,.reserve-advice p{color:#d0ddcf}.reserve-card>small{color:#c3d3c5}.tank-spec{font-size:12px}.metric div>span{font-size:12px}.method p{font-size:14px}.topbar a:hover{text-decoration:underline}input:disabled{background:#e9eee5;color:#667162;cursor:not-allowed}#page-title:focus{outline:none}.tank-summary{overflow-wrap:anywhere}.guide h2{overflow-wrap:anywhere}.water-amount>span{font-size:clamp(22px,2.6vw,38px)}
.analytics-choice{position:fixed;z-index:1100;bottom:20px;left:20px;max-width:520px;width:calc(100% - 40px);padding:20px;background:#fff;color:#213d35;border:1px solid #d3dece;border-radius:16px;box-shadow:0 8px 40px #102c4926;font-size:14px;line-height:1.5}.analytics-choice[hidden]{display:none}.analytics-choice p{margin:8px 0 14px}.analytics-actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.analytics-actions .button{font-size:14px;min-height:42px;padding:9px 14px}.analytics-actions a{font-size:13px;text-decoration:underline}.analytics-settings{border:0;background:none;color:inherit;font:inherit;padding:0;cursor:pointer;text-decoration:underline;text-underline-offset:3px}.analytics-settings:focus-visible{outline:2px solid #2457dc;outline-offset:4px}@media print{.analytics-choice,.analytics-settings,.sidebar,.topbar,#add-reading{display:none!important}.app{margin-left:0}}@media(max-width:650px){.analytics-choice{bottom:12px;left:12px;width:calc(100% - 24px);max-height:65vh;overflow:auto;padding:16px}.tank-spec{font-size:11px}.water-amount>span{font-size:28px}.tank-summary{width:50%}.topbar>span{font-size:8px;letter-spacing:.5px}.topbar>div{gap:8px}}