:root{--bg:#f3efe6;--paper:#faf7f1;--field:#fdfbf7;--ink:#1d232b;--ink2:#434d58;--ink3:#5f6a75;--line:#e2ddd1;--line2:#cbc4b5;--accent:#c2410c;--accent-ink:#a8380b;--accent-soft:#fbe9dc;--sun:#f08c00;--good:#2b7a38;--good-soft:#e6f4e8;--warn:#8a4a00;--warn-soft:#fbf0d9;--warn-line:#e3c27e;--bad:#b42424;--grid:rgba(29,35,43,.12);--shadow:0 1px 2px rgba(60,40,10,.05),0 4px 16px rgba(60,40,10,.04);color-scheme:light;--radius:12px;font-synthesis:none}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#0f1317;--paper:#171c22;--field:#1f262e;--ink:#e8ecf0;--ink2:#c0c8d0;--ink3:#9aa5b0;--line:#29313a;--line2:#3a444f;--accent:#c2410c;--accent-ink:#ff9a66;--accent-soft:#2a1c14;--sun:#f59f00;--good:#69db7c;--good-soft:#14241a;--warn:#ffc078;--warn-soft:#2a2215;--warn-line:#5c4520;--bad:#ff8787;--grid:rgba(232,236,240,.12);--shadow:0 1px 2px rgba(0,0,0,.4);color-scheme:dark}}
:root[data-theme=dark]{--bg:#0f1317;--paper:#171c22;--field:#1f262e;--ink:#e8ecf0;--ink2:#c0c8d0;--ink3:#9aa5b0;--line:#29313a;--line2:#3a444f;--accent:#c2410c;--accent-ink:#ff9a66;--accent-soft:#2a1c14;--sun:#f59f00;--good:#69db7c;--good-soft:#14241a;--warn:#ffc078;--warn-soft:#2a2215;--warn-line:#5c4520;--bad:#ff8787;--grid:rgba(232,236,240,.12);--shadow:0 1px 2px rgba(0,0,0,.4);color-scheme:dark}
@media print{:root,:root[data-theme=dark]{--bg:#fff;--paper:#fff;--field:#fdfbf7;--ink:#1d232b;--ink2:#434d58;--ink3:#5f6a75;--line:#e2ddd1;--line2:#cbc4b5;--accent:#c2410c;--accent-ink:#a8380b;--accent-soft:#fbe9dc;--sun:#f08c00;--good:#2b7a38;--good-soft:#e6f4e8;--warn:#8a4a00;--warn-soft:#fbf0d9;--warn-line:#e3c27e;--bad:#b42424;--grid:rgba(29,35,43,.12);--shadow:0 1px 2px rgba(60,40,10,.05),0 4px 16px rgba(60,40,10,.04);color-scheme:light}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
a{color:var(--accent-ink)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--sun);outline-offset:2px}
.skip{position:absolute;left:-9999px}.skip:focus{left:12px;top:12px;background:var(--paper);padding:8px 12px;z-index:10}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
header.site{border-bottom:1px solid var(--line);background:var(--paper)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;min-height:60px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:20px;color:var(--ink);text-decoration:none;letter-spacing:-.01em}
.brand svg{flex:none}
nav.top{display:flex;gap:18px;flex-wrap:wrap;font-size:15px}
nav.top a{color:var(--ink2);text-decoration:none}nav.top a:hover{color:var(--accent-ink)}
.hero{padding:34px 0 10px}
.hero h1{font-size:clamp(28px,4.2vw,42px);line-height:1.15;margin:0 0 10px;letter-spacing:-.02em}
.hero p{margin:0;color:var(--ink2);max-width:760px;font-size:18px}
.badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;padding:0;list-style:none}
.badges li{font-size:13px;padding:4px 10px;border:1px solid var(--line2);border-radius:999px;color:var(--ink2);background:var(--paper)}
.app{display:grid;grid-template-columns:minmax(0,1fr) 400px;gap:24px;align-items:start;margin:22px 0 40px}
@media (max-width:980px){.app{grid-template-columns:1fr}}
.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;margin-bottom:18px}
.card h2{font-size:18px;margin:0 0 4px;display:flex;align-items:center;gap:10px}
.step{display:inline-grid;place-items:center;width:26px;height:26px;border-radius:50%;background:var(--accent);color:#fff;font-size:14px;font-weight:700;flex:none}
.hint{color:var(--ink3);font-size:14px;margin:0 0 14px}
.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px}
label.f{display:flex;flex-direction:column;gap:5px;font-size:14px;font-weight:600;color:var(--ink2)}
label.f small{font-weight:400;color:var(--ink3)}
/* Keep '(ft)' / '(m)' on one line; unit spans must stay inline so flex labels don't stack '(', unit, ')'. */
label.f .unit, .unit{display:inline;white-space:nowrap}
label.f [data-len]{display:inline}
input[type=number],input[type=text],select{font:inherit;font-size:16px;color:var(--ink);background:var(--field);border:1px solid var(--line2);border-radius:8px;padding:9px 10px;width:100%;min-height:42px}
input[type=number]{font-variant-numeric:tabular-nums}
.seg{display:flex;flex-wrap:wrap;border:1px solid var(--line2);border-radius:10px;overflow:hidden;width:fit-content;max-width:100%}
.seg button{font:inherit;font-size:14px;border:0;background:var(--paper);color:var(--ink2);padding:8px 14px;cursor:pointer;min-height:40px;border-right:1px solid var(--line2)}
.seg button:last-child{border-right:0}
.seg button[aria-pressed=true]{background:var(--accent);color:#fff}
.rigs{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:10px}
.rig{font:inherit;text-align:left;border:1px solid var(--line2);background:var(--bg);color:var(--ink);border-radius:10px;padding:10px 12px;cursor:pointer;min-height:44px}
.rig strong{display:block;font-size:15px}.rig span{font-size:13px;color:var(--ink3)}
.rig[aria-pressed=true]{border-color:var(--accent);background:var(--accent-soft)}
.loads{width:100%;border-collapse:collapse;font-size:14px}
.loads th{text-align:left;font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:var(--ink3);font-weight:600;padding:6px 4px;border-bottom:1px solid var(--line)}
.loads td{padding:6px 4px;border-bottom:1px solid var(--line);vertical-align:middle}
.loads input[type=number]{width:76px;min-height:38px;padding:6px}
.loads input[type=text]{min-height:38px;padding:6px;min-width:150px}
.loads .wh{font-variant-numeric:tabular-nums;text-align:right;white-space:nowrap;font-weight:600}
.loads .num{text-align:right}
.loads .chk{text-align:center}
.icon-btn{font:inherit;border:1px solid var(--line2);background:var(--paper);color:var(--ink2);border-radius:8px;width:38px;height:38px;cursor:pointer}
.icon-btn:hover{color:var(--bad);border-color:var(--bad)}
.tablewrap{overflow-x:auto;margin:0 -6px;padding:0 6px}
@media (max-width:720px){
  .loads thead{display:none}.loads,.loads tbody,.loads tr,.loads td{display:block;width:100%}
  .loads tr{border:1px solid var(--line);border-radius:10px;padding:8px 10px;margin-bottom:10px;display:grid;grid-template-columns:repeat(4,1fr);gap:6px 8px;align-items:end}
  .loads td.num{text-align:left}
  .loads td.wh{grid-column:span 2}
  .loads td:last-child{text-align:right}
  .loads td{border:0;padding:0}
  .loads td[data-l]::before{content:attr(data-l);display:block;font-size:11px;text-transform:uppercase;color:var(--ink3);letter-spacing:.04em}
  .loads td.name{grid-column:1/-1}.loads td.name input{width:100%}
  .loads input[type=number]{width:100%}
  .loads .wh{text-align:left}.loads .chk{text-align:left}
}
.row-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px;align-items:center}
.btn{font:inherit;font-size:15px;font-weight:600;border-radius:10px;padding:9px 16px;cursor:pointer;border:1px solid var(--line2);background:var(--paper);color:var(--ink);min-height:42px}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn:hover{border-color:var(--accent)}
.months{display:flex;flex-wrap:wrap;gap:6px}
.months label{display:inline-flex;align-items:center;gap:4px;font-size:14px;border:1px solid var(--line2);border-radius:8px;padding:5px 9px;cursor:pointer;background:var(--bg);min-height:36px}
.months input{accent-color:var(--accent)}
details.adv{border-top:1px dashed var(--line2);margin-top:14px;padding-top:10px}
details.adv summary{cursor:pointer;font-weight:600;color:var(--ink2);font-size:15px;min-height:32px}
.results{position:sticky;top:14px}
@media (max-width:980px){.results{position:static}}
.res-head{display:flex;align-items:baseline;justify-content:space-between;gap:8px;flex-wrap:wrap}
.big{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:12px 0}
.kpi{position:relative;border:0;border-radius:10px;padding:10px 12px 10px 16px;background:transparent;box-shadow:none;cursor:default;outline:none}
.kpi,.kpi *,.kpi::before,.kpi::after{cursor:default}
.kpi:hover,.kpi:hover *,.kpi:hover::before,.kpi:hover::after{cursor:default}
.kpi:focus,.kpi:focus-visible,.kpi:active{outline:none}
.kpi::before{content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;border-radius:2px;background:var(--line2);pointer-events:none}
.kpi .v{font-size:24px;font-weight:750;letter-spacing:-.01em;font-variant-numeric:tabular-nums;line-height:1.2}
.kpi .l{font-size:12px;color:var(--ink3);text-transform:uppercase;letter-spacing:.04em}
.kpi .d{font-size:13px;color:var(--ink2)}
.kpi.hl{background:var(--accent-soft)}
.kpi.hl::before{background:var(--accent)}
.plain{font-size:15px;color:var(--ink2);margin:10px 0}
.warn{background:var(--warn-soft);border:1px solid var(--warn-line);color:var(--ink);border-radius:10px;padding:10px 12px;font-size:14px;margin:8px 0}
.warn strong{color:var(--warn)}
.chart{width:100%;height:auto;display:block;margin-top:6px}
.chart text{fill:var(--ink3);font-size:11px}
.legend{display:flex;gap:14px;flex-wrap:wrap;font-size:12px;color:var(--ink3)}
.legend i{display:inline-block;width:10px;height:10px;border-radius:2px;margin-right:5px;vertical-align:-1px}
.parts{width:100%;border-collapse:collapse;font-size:14px}
.parts td{padding:7px 0;border-bottom:1px solid var(--line);vertical-align:top}
.parts td:last-child{text-align:right;font-weight:650;font-variant-numeric:tabular-nums;padding-left:10px}
.math{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px;background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:10px 12px;overflow-x:auto;white-space:pre;line-height:1.55;color:var(--ink2)}
.slot{border:2px dashed var(--line2);border-radius:10px;padding:14px;color:var(--ink3);font-size:13px;text-align:center;background:repeating-linear-gradient(45deg,transparent,transparent 8px,color-mix(in srgb,var(--line) 40%,transparent) 8px,color-mix(in srgb,var(--line) 40%,transparent) 16px)}
.slot.ad{min-height:100px;display:grid;place-items:center;margin:18px 0}
.kits{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px}
.kit{border:1px solid var(--line);border-radius:10px;padding:14px;background:var(--bg)}
.kit h3{margin:0 0 4px;font-size:16px}
.kit .ph{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:var(--warn);border:1px solid var(--warn);border-radius:4px;padding:1px 6px;margin-bottom:6px}
.fit{font-size:13px;margin-top:6px}
.ok{color:var(--good)}.no{color:var(--bad)}
.toast{position:fixed;bottom:16px;left:50%;transform:translateX(-50%);background:var(--ink);color:var(--paper);padding:10px 16px;border-radius:10px;font-size:14px;opacity:0;transition:opacity .2s;pointer-events:none;z-index:20}
.toast.show{opacity:1}
article.guide{max-width:780px;margin:0 auto 40px}
article.guide h2{font-size:28px;letter-spacing:-.015em;margin:44px 0 10px;line-height:1.2}
article.guide h3{font-size:20px;margin:28px 0 6px}
article.guide p,article.guide li{color:var(--ink2)}
article.guide table{border-collapse:collapse;width:100%;font-size:15px;margin:12px 0}
article.guide th,article.guide td{border-bottom:1px solid var(--line);padding:8px 6px;text-align:left}
article.guide td.n,article.guide th.n{text-align:right;font-variant-numeric:tabular-nums}
.callout{border-left:4px solid var(--accent);background:var(--accent-soft);padding:12px 16px;border-radius:0 10px 10px 0;margin:16px 0}
.faq details{border-bottom:1px solid var(--line);padding:12px 0}
.faq summary{font-weight:650;cursor:pointer;color:var(--ink);font-size:17px}
footer.site{border-top:1px solid var(--line);background:var(--paper);padding:26px 0;font-size:14px;color:var(--ink3)}
footer.site nav{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:8px}
.legal{max-width:760px;margin:30px auto 60px}.legal h1{font-size:32px}.legal p,.legal li{color:var(--ink2)}
.placeholder-note{background:var(--warn-soft);border:1px solid var(--warn);padding:10px 14px;border-radius:10px;font-size:14px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
@media print{
  header.site,footer.site,.hero,.inputs,.slot,.kits-card,body.calc-page article.guide,.no-print,.toast{display:none!important}
  body{background:#fff;color:#000}.app{display:block;margin:0}.results{position:static}.card{box-shadow:none;border:1px solid #999;break-inside:avoid}
  .print-only{display:block!important}
}
.print-only{display:none}

@media (max-width:720px){
  .rigs{grid-template-columns:1fr 1fr}.rig span{display:none}.rig{min-height:52px}
  .hero{padding-top:22px}.hero p{font-size:16px}.badges li{font-size:12px}
  body{padding-bottom:64px}
}
.mbar{display:none}
@media (max-width:980px){
  .mbar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:15;background:var(--paper);border-top:1px solid var(--line2);padding:8px 14px calc(8px + env(safe-area-inset-bottom));gap:10px;align-items:center;justify-content:space-between;box-shadow:0 -4px 16px rgba(0,0,0,.06)}
  .mbar .m{font-size:13px;color:var(--ink3);line-height:1.2}.mbar .m b{display:block;color:var(--ink);font-size:16px;font-variant-numeric:tabular-nums}
  .mbar a{font-weight:650;font-size:14px;text-decoration:none;background:var(--accent);color:#fff;border-radius:10px;padding:9px 12px;white-space:nowrap}
}
@media print{.mbar{display:none!important}}

.theme-btn{display:inline-grid;place-items:center;width:42px;height:42px;border-radius:10px;border:1px solid var(--line2);background:var(--field);color:var(--ink);cursor:pointer;padding:0}
.theme-btn:hover{border-color:var(--accent)}
.theme-btn svg{width:20px;height:20px}
.theme-btn .moon{display:none}
:root[data-theme-active=dark] .theme-btn .sun{display:none}:root[data-theme-active=dark] .theme-btn .moon{display:block}
.head-right{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
input,select,textarea{accent-color:var(--accent)}
::selection{background:var(--accent-soft)}

.ph-inline{background:var(--warn-soft);border:1px dashed var(--warn);border-radius:4px;padding:0 4px;font-size:.9em}
.paid{font-weight:600;color:var(--ink2)}
footer.site p{font-size:13px}

a.btn{display:inline-block;text-decoration:none;line-height:1.3;margin:0}
.cta-row{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0 8px}
body.guide-page article.guide{margin:30px auto 60px}
body.guide-page article.guide h1{font-size:clamp(28px,4.2vw,40px);line-height:1.15;letter-spacing:-.02em;margin:0 0 12px}
body.guide-page article.guide .lede{font-size:18px;color:var(--ink2);margin:0 0 16px}
body.guide-page article.guide .callout{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:14px 16px;margin:20px 0}
body.guide-page .guide-list{margin:0;padding-left:1.2em}
body.guide-page .guide-list li{margin:6px 0}
footer.site nav[aria-label="Guides"]{margin-top:10px}
.sun-table{font-size:14px}
.sun-table a{text-decoration:none}

/* Mode toggle and existing-setup checker */
.mode-bar{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 18px}
.mode-bar button{font:inherit;font-size:15px;font-weight:600;border:1px solid var(--line2);background:var(--paper);color:var(--ink2);border-radius:10px;padding:10px 16px;cursor:pointer;min-height:44px}
.mode-bar button[aria-pressed=true]{background:var(--accent);border-color:var(--accent);color:#fff}
body.mode-check .size-only{display:none}
body.mode-check .kits-card{display:none}
body.mode-size .check-only{display:none}
.month-check{width:100%;border-collapse:collapse;font-size:14px;margin:8px 0 4px}
.month-check th{text-align:left;font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:var(--ink3);padding:6px 4px;border-bottom:1px solid var(--line)}
.month-check td{padding:7px 4px;border-bottom:1px solid var(--line);font-variant-numeric:tabular-nums}
.month-check td.n,.month-check th.n{text-align:right}
.how-calc{margin:16px 0 0;padding:14px 16px;border:1px solid var(--line);border-radius:10px;background:var(--bg)}
.how-calc h3{font-size:15px;margin:0 0 6px}
.how-calc p{margin:0 0 8px;font-size:14px;color:var(--ink2)}
.how-calc p:last-child{margin:0}
.checked{font-size:13px;color:var(--ink3);margin:8px 0 0}

/* Larger tap targets on narrow phones */
@media (max-width:720px){
  .months label{min-height:44px;padding:8px 10px}
  details.adv summary{min-height:44px;display:flex;align-items:center}
  .loads input[type=number],.loads input[type=text],.icon-btn{min-height:44px;height:auto}
  .icon-btn{width:44px}
  .mbar a{min-height:44px;display:inline-flex;align-items:center}
  .seg button{min-height:44px}
  .theme-btn{width:44px;height:44px}
  .faq summary{min-height:44px;display:flex;align-items:center}
}
[hidden]{display:none!important}