/* SepticSizeChart — soil & field theme: warm paper, deep field green, harvest amber, alert red for key numbers.
   One stylesheet, system fonts, no external assets. */
:root{
  --ink:#2a2620; --ink2:#453e33; --mut:#6b6151; --faint:#9a8f7c;
  --bg:#f4f0e6; --panel:#fffdf7; --line:#ddd3bd;
  --green:#2e5339; --green-d:#22402c; --green-t:#e7efe4;
  --amber:#e8a33d; --amber-d:#9a6206; --amber-t:#fdf3dd;
  --red:#c02718; --brown:#8a6642;
  --radius:10px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0; background:var(--bg); color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  font-size:17px; line-height:1.55;
}
a{color:var(--green-d); text-decoration:underline; text-underline-offset:2px}
a:hover{color:var(--green)}
h1{font-size:2.05rem; line-height:1.15; margin:.15em 0 .35em}
h2{font-size:1.45rem; line-height:1.25; margin:1.7em 0 .5em}
h3{font-size:1.12rem; margin:1.1em 0 .4em}
p{margin:.55em 0}
small,.fineprint{font-size:.82rem; color:var(--mut)}
.wrap{max-width:1040px; margin:0 auto; padding:0 16px 48px}

/* ---------- brand bar (sticky, one slim row) ---------- */
.brandbar{background:var(--green-d); color:#f7f3e8; position:sticky; top:0; z-index:60; box-shadow:0 1px 6px rgba(24,32,20,.3)}
[id]{scroll-margin-top:64px}
.brandbar-in{max-width:1040px; margin:0 auto; padding:0 12px; min-height:52px;
  display:flex; align-items:center; gap:14px; flex-wrap:wrap}
.brand{display:flex; align-items:center; gap:9px; color:#fff; text-decoration:none; font-weight:700; font-size:1.06rem; letter-spacing:.2px; white-space:nowrap}
.brand:hover{color:#fff}
.brand .mark{width:26px; height:26px; flex:0 0 26px}
.brandbar nav{margin-left:auto; display:flex; gap:2px; flex-wrap:wrap}
.brandbar nav a{color:#e6e0cd; text-decoration:none; font-size:.92rem; padding:10px 9px; border-radius:6px; white-space:nowrap}
.brandbar nav a:hover{color:#fff; background:var(--green)}
.brandbar nav a[aria-current]{color:#fff; box-shadow:inset 0 -3px 0 var(--amber)}
.short-label{display:none}
@media (max-width:600px){
  .brandbar-in{min-height:46px; gap:8px}
  .brand{font-size:.98rem}
  .brandbar nav a{padding:8px 6px; font-size:.86rem}
  .long-label{display:none}
  .short-label{display:inline}
}

/* ---------- hero & badges ---------- */
.hero{padding:26px 0 4px}
.hero .kicker{font-size:.82rem; font-weight:700; letter-spacing:.14em; text-transform:uppercase; color:var(--amber-d); margin:0}
.badges{display:grid; grid-template-columns:repeat(3,1fr); gap:10px; margin:18px 0 4px}
.badge{background:var(--panel); border:1px solid var(--line); border-radius:var(--radius); padding:12px 14px}
.badge .b-num{font-size:1.5rem; font-weight:800; color:var(--green-d); line-height:1.1}
.badge .b-lab{font-size:.88rem; color:var(--mut)}
@media (max-width:600px){ .badges{grid-template-columns:1fr 1fr 1fr; gap:6px} .badge{padding:9px 8px} .badge .b-num{font-size:1.12rem} .badge .b-lab{font-size:.76rem} }

/* ---------- calculators ---------- */
.calc{background:var(--panel); border:1px solid var(--line); border-radius:14px; padding:20px; margin:18px 0; box-shadow:0 2px 10px rgba(60,50,20,.06)}
.calc h2{margin-top:0}
.calc-grid{display:grid; grid-template-columns:repeat(auto-fit,minmax(210px,1fr)); gap:14px}
.field label{display:block; font-weight:600; font-size:.92rem; margin-bottom:5px}
.field select{white-space:normal}
.field select,.field input[type="number"]{
  width:100%; font-size:16px; padding:10px 11px; border:1.5px solid var(--line); border-radius:8px;
  background:#fff; color:var(--ink);
}
.field select:focus,.field input:focus{outline:2px solid var(--amber); outline-offset:1px; border-color:var(--amber-d)}
.checkline{display:flex; gap:9px; align-items:flex-start; font-size:.95rem; margin-top:12px}
.checkline input{width:19px; height:19px; margin-top:2px; accent-color:var(--green)}
.result{margin-top:18px; border-top:2px dashed var(--line); padding-top:16px}
.res-big{font-size:2.5rem; font-weight:800; color:var(--red); line-height:1.1}
.res-big span{font-size:1.25rem; font-weight:700}
.res-line{font-size:1.02rem}
.res-src{font-size:.9rem; color:var(--ink2); background:var(--green-t); border-radius:8px; padding:8px 11px}
.res-note{font-size:.9rem; color:var(--mut)}
@media (max-width:600px){ .res-big{font-size:2rem} }

/* ---------- tables ---------- */
.tbl-scroll{overflow-x:auto; -webkit-overflow-scrolling:touch}
table{border-collapse:collapse; width:100%; margin:12px 0}
th,td{border:1px solid var(--line); padding:8px 11px; text-align:left; font-size:.95rem; vertical-align:top}
th{background:var(--green-t); font-weight:700}
tbody tr:nth-child(even){background:#faf6ec}
td.num,th.num{text-align:right; font-variant-numeric:tabular-nums; white-space:nowrap}
table.cost-table td:nth-child(2){text-align:right; font-variant-numeric:tabular-nums; white-space:nowrap}
tr.hl td{background:var(--amber-t); font-weight:600}
.labor-row td{background:#f3ecdb}
.grade{display:inline-block; font-size:.76rem; font-weight:700; padding:2px 8px; border-radius:99px; white-space:nowrap}
.grade-A{background:var(--green-t); color:var(--green-d)}
.grade-B{background:var(--amber-t); color:var(--amber-d)}
.grade-C{background:#f6e3e0; color:var(--red)}
.grade-E{background:#ece5d3; color:var(--ink2)}

/* ---------- content blocks ---------- */
.cards{display:grid; grid-template-columns:repeat(auto-fill,minmax(220px,1fr)); gap:10px; margin:14px 0}
.card{background:var(--panel); border:1px solid var(--line); border-radius:var(--radius); padding:13px 15px; text-decoration:none; color:var(--ink); display:block}
.card:hover{border-color:var(--amber-d)}
.card .c-t{font-weight:700; font-size:1.02rem; color:var(--green-d)}
.card .c-d{font-size:.88rem; color:var(--mut); margin-top:3px}
.callout{background:var(--amber-t); border:1px solid #ecd9a8; border-radius:var(--radius); padding:13px 16px; margin:14px 0}
.callout.green{background:var(--green-t); border-color:#c4d6bf}
details.checklist{background:var(--panel); border:1px solid var(--line); border-radius:var(--radius); padding:12px 16px; margin:12px 0}
details.checklist summary{font-weight:700; cursor:pointer}
.faq-item h3{margin-bottom:.15em}
.src-list{font-size:.92rem}
.alert-form{display:flex; gap:8px; flex-wrap:wrap; margin:10px 0}
.alert-form input[type="email"]{flex:1 1 240px; font-size:16px; padding:10px 12px; border:1.5px solid var(--line); border-radius:8px}
.btn{background:var(--green); color:#fff; border:none; border-radius:8px; padding:11px 18px; font-size:1rem; font-weight:700; cursor:pointer}
.btn:hover{background:var(--green-d)}
.sig{font-size:.85rem; color:var(--mut)}

/* ---------- state chart (pure CSS bars) ---------- */
.bars{margin:10px 0}
.bar-row{display:grid; grid-template-columns:170px 1fr 92px; gap:10px; align-items:center; padding:4px 0; font-size:.92rem}
.bar-track{background:#e9e2cf; border-radius:5px; height:20px; position:relative}
.bar-fill{position:absolute; inset:0 auto 0 0; background:var(--green); border-radius:5px}
.bar-row .bar-val{font-weight:700; text-align:right; font-variant-numeric:tabular-nums}
@media (max-width:600px){ .bar-row{grid-template-columns:104px 1fr 74px; font-size:.82rem; gap:6px} }

/* ---------- footer ---------- */
footer{border-top:2px solid var(--line); margin-top:34px; padding-top:18px}
.foot-nav{display:flex; flex-wrap:wrap; gap:6px 18px; margin-bottom:10px}
.foot-nav a{font-size:.94rem}
footer p{font-size:.9rem; color:var(--mut)}

@media print{
  .brandbar,.calc,.alert-form,footer nav{display:none!important}
  body{background:#fff}
}