:root{--ink:#183e3b;--teal:#08675e;--paper:#f6f4ed;--line:#d8dfd6;--muted:#52665f;--white:#fff}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.65 system-ui,-apple-system,Segoe UI,sans-serif}a{color:var(--teal);text-underline-offset:4px}a:hover{text-decoration-thickness:2px}header{border-bottom:1px solid var(--line);background:var(--paper)}.nav{max-width:1200px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:22px 24px;flex-wrap:wrap}.brand{text-decoration:none;color:var(--ink);font-weight:850;letter-spacing:2px;display:flex;align-items:center;gap:10px}.brand svg{width:36px;height:36px}nav{display:flex;gap:25px;flex-wrap:wrap}nav a{text-decoration:none;font-size:14px;font-weight:650}main{max-width:1200px;margin:auto;padding:28px 24px 80px}h1,h2,h3{line-height:1.15;letter-spacing:-.035em}h1{font-size:clamp(2.3rem,5vw,4rem);max-width:900px;margin:20px 0}h2{font-size:2rem;margin-top:48px}h3{font-size:1.3rem}p{max-width:78ch}.lead{font-size:1.15rem;color:var(--muted);max-width:65ch}.eyebrow{text-transform:uppercase;letter-spacing:.16em;font-size:.75rem;font-weight:800}.hero{display:grid;grid-template-columns:1.3fr 1fr;align-items:center;gap:50px;padding:40px 0 56px}.hero h1{font-size:clamp(3rem,6vw,5rem)}.hero-art{width:100%;max-height:400px}.pill{display:inline-block;border:1px solid var(--line);border-radius:30px;padding:5px 12px;font-size:12px}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.card{background:var(--white);padding:26px;border:1px solid var(--line);border-radius:14px;min-width:0}.card h3{margin-top:8px}.card a{font-weight:700}.card .number{color:var(--muted);font-size:12px;letter-spacing:2px}.workspace{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);gap:24px;margin:32px 0;align-items:start}form{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}label{display:flex;flex-direction:column;font-size:14px;font-weight:650;gap:6px;min-width:0}input,select,textarea,button{font:inherit;max-width:100%}input,select,textarea{width:100%;padding:11px;border:1px solid #8a9e94;border-radius:6px;background:white;color:var(--ink);min-width:0}button,.button{padding:11px 18px;border:1px solid var(--teal);border-radius:6px;background:white;color:var(--teal);font-weight:700;cursor:pointer;display:inline-block;text-decoration:none;white-space:normal}button:hover,.button:hover{background:#e4efe8}.primary{background:var(--teal);color:white}.primary:hover{background:var(--ink)}:focus-visible{outline:3px solid #c17419;outline-offset:3px}.skip{position:absolute;top:-80px}.skip:focus{top:4px;background:white;padding:10px;z-index:20}fieldset{border:1px solid var(--line);min-width:0;padding:16px;display:grid;gap:12px}form>p,form>div,form>fieldset{grid-column:1/-1}.metric{display:flex;justify-content:space-between;align-items:baseline;gap:16px;padding:13px 0;border-bottom:1px solid var(--line);overflow-wrap:anywhere}.metric strong{font-size:1.4rem}.metric span{text-transform:none}.result{background:#e5eee6}.notice{color:#a02e19;font-weight:650;white-space:pre-wrap}.toolbar{display:flex;flex-wrap:wrap;gap:12px;margin:20px 0}.toolbar label{flex:1;min-width:160px}.prose{max-width:800px}.prose p,.prose li{line-height:1.85}.breadcrumbs{font-size:13px;color:var(--muted)}footer{background:var(--ink);color:#e4eee6;padding:40px 24px}footer>div{max-width:1152px;margin:auto}footer a{color:#e4eee6}footer nav{margin:24px 0}.workflow{background:var(--ink);color:#fff;padding:28px;border-radius:14px}.workflow p{color:#dfebe4}details{margin-top:16px}summary{cursor:pointer} [hidden]{display:none!important}pre{white-space:pre-wrap;overflow-wrap:anywhere}article{overflow-wrap:anywhere}.allocation{border-top:1px solid var(--line);padding-top:12px;margin-bottom:20px}@media(max-width:800px){.hero,.workspace{grid-template-columns:1fr}.hero-art{max-height:260px}.grid{grid-template-columns:repeat(2,minmax(0,1fr))}.nav{gap:16px}nav{gap:18px}}@media(max-width:480px){main{padding:20px 16px 50px}.nav{padding:18px 16px}nav{gap:14px}.grid,form{grid-template-columns:1fr}.card{padding:20px}.hero{gap:15px;padding-top:15px}h1{font-size:2.3rem}.metric{align-items:start;flex-direction:column;gap:0}}@media print{header,footer,button,.toolbar,form{display:none}body{background:white}main{padding:0}.grid,.workspace{display:block}.card{break-inside:avoid}}

/* Final review: preserve brand while making navigation and tool states explicit. */
.hero{gap:32px;padding:28px 0 32px}.hero h1{font-size:clamp(2.5rem,4.8vw,3.8rem)}
.quick-links{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:24px 0 40px}.quick-links a{display:flex;align-items:center;gap:10px;padding:14px;background:#e5eee6;border:1px solid var(--line);border-radius:8px;text-decoration:none;font-size:14px;font-weight:700}
.tool-icon{width:32px;height:32px;flex-shrink:0;color:var(--teal);fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.link-card{position:relative;transition:box-shadow .15s,border-color .15s}.link-card a:after{content:'';position:absolute;inset:0;border-radius:14px}.link-card:hover,.link-card:focus-within{border-color:var(--teal);box-shadow:0 4px 16px #183e3b15}.link-card:focus-within{outline:3px solid #c17419;outline-offset:3px}.link-card h3{margin-top:14px}.link-card p{margin-bottom:0}
.steps{counter-reset:step;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));list-style:none;padding:0;gap:20px}.steps li{counter-increment:step}.steps li:before{content:'0' counter(step);display:block;color:#c9ded3;font-size:13px;margin-bottom:12px}.steps strong,.steps span{display:block}.steps span{color:#dfebe4;font-size:14px;margin-top:8px}
button:disabled{opacity:.55;cursor:not-allowed}.example-note{font-size:14px;color:var(--muted);border-left:3px solid var(--teal);padding-left:12px}
@media(max-width:800px){.quick-links{grid-template-columns:repeat(2,minmax(0,1fr))}.steps{grid-template-columns:1fr 1fr}}@media(max-width:480px){.quick-links,.steps{grid-template-columns:1fr}.hero h1{font-size:2.5rem}.steps li{border-top:1px solid #ffffff33;padding-top:12px}.hero{gap:24px}}
@media print{.quick-links,.example-note{display:none}.result{background:white}.metric{display:flex;flex-direction:row}}
/* SPOOLNIVA printing workbench */
:root{--ink:#122f34;--teal:#00675d;--paper:#f8f6f0;--line:#deded5}header{background:#004d47;color:white}.nav{padding:14px 24px}.nav .brand,.nav nav a{color:white}.mobile-nav{display:none}h2{font-size:1.65rem}.print-hero{display:grid;grid-template-columns:1fr 1.25fr;align-items:center;background:#073e3e;color:white;border-radius:16px;overflow:hidden;margin:0 0 22px}.print-hero>div{padding:24px 28px}.print-hero h1{font-size:clamp(1.8rem,3vw,2.8rem);margin:0 0 12px}.print-hero h1 span{color:#86ddcc}.print-hero p{line-height:1.5;margin:0}.print-hero picture{display:block;min-width:0}.print-hero img{display:block;width:100%;height:auto}.quick-check{display:grid;grid-template-columns:1.12fr 1fr;gap:28px;box-shadow:0 6px 18px #163b3420;padding:26px}.quick-check h2{margin:0 0 8px}.quick-input>p{margin:0 0 18px;font-size:14px}.quick-setup{display:grid;grid-template-columns:100px 1fr;gap:18px;align-items:center}.spool-visual{width:100%;height:auto}.quick-setup form{gap:12px}.quick-setup label{font-size:13px}.quick-setup input{padding:9px;min-height:44px}.quick-setup button{grid-column:1/-1}.quick-output{border-left:1px solid var(--line);padding-left:28px}.quick-metrics{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:22px 0 10px;font-size:14px}.quick-metrics strong{display:block;font-size:1.8rem;line-height:1.4}.status{padding:9px 14px;border-radius:10px;font-weight:800;margin:12px 0}.success{background:#e5f5d9;color:#006455}.warning{background:#fff0d9;color:#874214}.usage-bar{height:20px;border-radius:20px;background:#c7eae1;overflow:hidden}.usage-bar span{display:block;height:100%;background:#007e6c;border-radius:20px}.usage-labels{display:flex;justify-content:space-between;gap:10px;font-size:12px;margin:6px 0 16px}.local-note{font-size:12px;color:var(--muted);margin-bottom:0}.home-tools h2{margin:26px 0 14px}.home-tools .grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.home-tools .link-card{display:grid;grid-template-columns:58px 1fr;gap:0 10px;padding:15px;position:relative;box-shadow:0 3px 5px #173e3910}.tool-icon{width:64px;height:60px;object-fit:contain;flex-shrink:0}.home-tools .tool-icon{width:58px;grid-row:1/3;align-self:center}.home-tools h3{font-size:15px;margin:0 0 6px;letter-spacing:-.02em}.home-tools p{font-size:12px;line-height:1.4;margin:0}.link-card a:after{content:'';position:absolute;inset:0;border-radius:14px}.link-card{position:relative}.link-card:focus-within{outline:3px solid #b36a18;outline-offset:3px}.link-card:hover{border-color:#4b9d8c;box-shadow:0 4px 12px #164d3820}.learning-links{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:22px}.learning-links>a{display:flex;align-items:center;gap:16px;padding:16px 22px;border:1px solid var(--line);border-radius:14px;background:#dff2eb;text-decoration:none;color:var(--ink)}.learning-links>a:nth-child(2){background:#fbefd9}.learning-links strong{display:block;font-size:23px}.learning-links small{display:block}.learning-links>a>span:last-child{margin-left:auto}.tool-heading{display:flex;align-items:center;gap:18px}.tool-heading h1{font-size:clamp(2rem,4vw,3rem)}.result{background:#edf5ef;border-top:4px solid var(--teal)}button:active,.button:active{transform:translateY(1px)}button:disabled{opacity:.5;cursor:not-allowed}button.danger,[data-delete]{color:#922c20;border-color:#b65c50}footer{background:transparent;color:var(--ink);border-top:1px solid var(--line);padding:22px 24px}footer .brand,footer p,footer small{display:none}footer a{color:var(--ink)}footer nav{margin:0;justify-content:center}main{padding-bottom:32px}
@media(max-width:1100px){.home-tools .grid{grid-template-columns:repeat(2,minmax(0,1fr))}.quick-setup{grid-template-columns:1fr}.spool-visual{display:none}.print-hero{grid-template-columns:1fr 1fr}}
@media(max-width:767px){.desktop-nav{display:none}.mobile-nav{display:block;margin:0}.mobile-nav summary{padding:6px;min-height:44px;display:flex;align-items:center;cursor:pointer}.mobile-nav[open]{width:100%}.mobile-nav nav{padding:12px 0}.nav{gap:8px}.brand{letter-spacing:1px}.print-hero{grid-template-columns:1fr}.print-hero picture{display:none}.print-hero>div{padding:18px 20px}.print-hero h1{font-size:1.7rem}.print-hero h1 br{display:none}.print-hero h1 span:before{content:' '}.print-hero p{font-size:14px}.quick-check{grid-template-columns:1fr;gap:20px;padding:20px}.quick-output{border-left:0;border-top:1px solid var(--line);padding:20px 0 0}.quick-setup form{grid-template-columns:1fr 1fr}.quick-metrics{margin:12px 0}.quick-metrics strong{font-size:1.6rem}.learning-links{grid-template-columns:1fr}.tool-heading{gap:10px}.tool-heading .tool-icon{width:48px}.tool-heading h1{font-size:2rem}}
@media(max-width:390px){main{padding:16px 12px 28px}.home-tools .grid{grid-template-columns:1fr}.quick-setup form{gap:10px}.quick-check{padding:16px}.quick-check h2{font-size:1.4rem}.quick-metrics{gap:8px}.quick-metrics strong{font-size:1.4rem}.learning-links>a{padding:12px}.learning-links small{font-size:12px}}

/* Home introduction: readable static text below the learning links. */
.home-about{max-width:76ch;margin:48px auto 0;padding-top:8px;background:var(--paper);color:var(--ink);overflow-wrap:anywhere}.home-about h2{margin:0 0 24px}.home-about h3{margin:32px 0 16px;line-height:1.3}.home-about p{margin:0 0 18px;line-height:1.8}

/* Licensed local photography */
.print-hero picture{display:block;overflow:hidden}.print-hero img{width:100%;height:100%;object-fit:cover;object-position:center;border-radius:14px}.spool-visual{width:150px;height:auto;aspect-ratio:4/3;object-fit:cover;border-radius:12px}.tool-icon{width:120px;height:90px;object-fit:cover;border-radius:10px}.home-tools .link-card{grid-template-columns:1fr;gap:10px}.home-tools .tool-icon{width:100%;height:auto;aspect-ratio:4/3;grid-row:auto}.tool-heading .tool-icon{width:100px;height:75px}@media(max-width:767px){.print-hero picture{display:block;height:190px}.print-hero img{height:190px}.tool-heading .tool-icon{width:72px;height:54px}}

.quick-setup .spool-visual{width:100%;max-width:150px;min-width:0}

/* Home layout: wider work area and a compact photographic banner. */
body:has(.quick-check) main,body:has(.quick-check) .nav{max-width:1320px}
body:has(.quick-check) main{padding-top:20px}
.print-hero{height:155px;margin-bottom:20px}
.print-hero>div{padding:12px 28px}
.print-hero h1{font-size:clamp(1.8rem,2.5vw,2.2rem);margin-bottom:8px}
.print-hero p{font-size:14px}
.print-hero picture{height:100%;min-height:0}
.print-hero img{height:100%;object-position:50% 58%}
.quick-check{grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:24px}
.quick-input,.quick-output{min-width:0}
.quick-setup form{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 18px}
.quick-setup input{padding:10px 12px;min-height:46px}
.quick-setup label{justify-content:space-between}
.quick-output{padding-left:24px}
@media(min-width:901px){
 .quick-check{min-height:0;padding:36px 32px 24px}
 .quick-setup .spool-visual{width:88px;justify-self:center;align-self:start;margin-top:28px}
 .quick-input>p{margin-bottom:28px}
 .quick-setup form{gap:22px 18px}
 .quick-setup label{font-size:14px}
 .quick-setup input{min-height:58px;padding:15px 14px}
 .quick-setup button{min-height:58px}
 .quick-metrics{margin-top:32px;margin-bottom:20px}
 .quick-output .status{padding:12px 14px}
 .quick-output .usage-labels{margin-bottom:22px}
}
@media(max-width:900px){
 .quick-check{grid-template-columns:minmax(0,1fr);gap:20px}
 .quick-output{border-left:0;border-top:1px solid var(--line);padding:20px 0 0}
}
@media(max-width:767px){
 body:has(.quick-check) main{padding-top:16px}
 .print-hero{height:auto;margin-bottom:18px}
 .print-hero>div{padding:14px 18px}
 .print-hero h1{font-size:1.6rem;line-height:1.15}
 .print-hero picture,.print-hero img{height:112px}
 .print-hero img{object-position:50% 62%}
 .quick-setup form{gap:12px}
 .quick-setup label{font-size:12px}
}

/* Final home proportions: calculator first, compact tool photographs. */
.print-hero{margin-bottom:16px}
.quick-check{grid-template-columns:minmax(0,1.16fr) minmax(0,.84fr)}
.quick-check h2{font-size:clamp(1.6rem,2.5vw,2.15rem)}
.quick-input>p{font-size:16px}
.quick-metrics strong{font-size:2.6rem}
.quick-output .status{font-size:1.2rem;font-weight:800}
.quick-output .usage-bar{height:22px}
.home-tools .link-card{padding:12px;gap:8px;grid-template-rows:80px auto 1fr}
.home-tools .tool-icon{height:80px;aspect-ratio:auto;object-fit:cover;object-position:center}
.home-tools h3{font-size:16px;line-height:1.25;margin:0;display:grid;grid-template-columns:minmax(0,1fr) 18px;gap:6px}
.home-tools h3:after{content:'→';color:var(--teal);font-size:18px}
.home-tools p{font-size:12px;line-height:1.45}
@media(min-width:901px){
 .quick-check{padding:30px}
 .quick-setup{grid-template-columns:150px minmax(0,1fr);gap:20px}
 .quick-setup .spool-visual{width:150px;height:174px;object-fit:cover;margin-top:30px;border-radius:16px}
 .quick-setup form{gap:20px}
 .quick-setup label{font-size:15px}
 .quick-setup input{font-size:18px;font-weight:650;min-height:60px}
 .quick-setup button{min-height:64px;font-size:22px;width:calc(100% + 170px);max-width:none;margin-left:-170px}
 .quick-output .status{padding:13px 16px}
 .quick-output .button{font-size:18px;padding:12px 24px}
}
@media(min-width:901px) and (max-width:1100px){
 .quick-setup{grid-template-columns:minmax(0,1fr)}
 .quick-setup button{width:100%;margin-left:0}
}
@media(max-width:900px){.quick-check{grid-template-columns:minmax(0,1fr)}}
@media(max-width:767px){
 .quick-check h2{font-size:1.6rem}
 .quick-input>p{font-size:14px}
 .quick-setup input{min-height:48px;font-size:16px}
 .quick-setup button{min-height:52px;font-size:17px}
 .quick-metrics strong{font-size:2rem}
 .quick-output .status{font-size:1.1rem}
 .home-tools h3{font-size:15px}
}