:root{
  --ink:#1f2420; --sub:#5b6660; --line:#d9ddd6; --accent:#2f6b52; --accent-soft:#e5efe8;
  --accent-line:#bcd8c7; --bg:#fbfaf7; --panel:#ffffff;
  --danger:#b03030; --danger-soft:#fbeaea; --danger-line:#e2bcbc;
}
body[data-accent="sale"]{
  --accent:#a8652f; --accent-soft:#f6ede3; --accent-line:#e6d3bd;
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0; padding:0; background:var(--bg); color:var(--ink);
  font-family:-apple-system,"Segoe UI",Tahoma,"Leelawadee UI","Noto Sans Thai",sans-serif;
  line-height:1.5; font-size:15px;
}
.wrap{max-width:820px; margin:0 auto; padding:28px 20px 80px;}
header.top{border-bottom:2px solid var(--ink); padding-bottom:16px; margin-bottom:20px;}
.wordmark{font-size:20px; font-weight:700; letter-spacing:.01em;}
.wordmark span{color:var(--accent);}
.doc-title{margin:10px 0 2px; font-size:24px; font-weight:700;}
.doc-title .th{display:block; font-size:16px; font-weight:600; color:var(--sub); margin-top:2px;}
.intro{background:var(--accent-soft); border:1px solid var(--accent-line); border-radius:10px; padding:14px 16px; margin:18px 0; font-size:13.5px;}
.intro p{margin:0 0 8px;}
.intro p:last-child{margin-bottom:0;}
.intro .th{color:var(--sub);}
.noprint{margin:14px 0 24px; display:flex; gap:10px; flex-wrap:wrap;}
.noprint button{
  font:inherit; font-size:13.5px; font-weight:600; padding:9px 16px; border-radius:8px;
  border:1px solid var(--ink); background:var(--ink); color:#fff; cursor:pointer;
}
.noprint .hint{align-self:center; font-size:12.5px; color:var(--sub);}

section{margin:0 0 26px; break-inside:avoid; page-break-inside:avoid;}
h2{
  font-size:15px; text-transform:uppercase; letter-spacing:.04em; margin:0 0 4px;
  padding-bottom:8px; border-bottom:1px solid var(--line); display:flex; gap:10px; align-items:baseline;
}
h2 .num{color:var(--accent); font-weight:700;}
h2 .th{font-size:12.5px; text-transform:none; letter-spacing:0; color:var(--sub); font-weight:500;}
h3{font-size:12.5px; text-transform:uppercase; letter-spacing:.03em; color:var(--sub); margin:16px 0 8px;}

.field{margin:12px 0;}
.field label.q{display:block; font-size:13.5px; font-weight:600; margin-bottom:1px;}
.field .q .th{display:block; font-weight:400; color:var(--sub); font-size:12.5px; margin-top:1px;}
.field .note{font-size:12px; color:var(--sub); margin:2px 0 6px;}
.fill{
  width:100%; border:none; border-bottom:1px solid var(--line); background:transparent;
  padding:6px 2px; font:inherit; font-size:16px; color:var(--ink);
}
.fill:focus{outline:none; border-bottom:1.5px solid var(--accent);}
textarea.fill{border:1px solid var(--line); border-radius:6px; padding:8px; resize:vertical; min-height:64px;}
select.fill{border-bottom:1px solid var(--line);}

.row{display:flex; gap:16px; flex-wrap:wrap;}
.row .field{flex:1 1 200px;}

.choices{display:flex; flex-wrap:wrap; gap:8px; margin-top:4px;}
.choice{
  display:flex; align-items:center; gap:10px; border:1px solid var(--line); border-radius:7px;
  padding:6px 11px; min-height:44px; font-size:13px; cursor:pointer; background:var(--panel);
}
.choice input{margin:0; width:18px; height:18px; accent-color:var(--accent);}
.choice .th{color:var(--sub); font-size:11.5px;}

.note{font-size:12px; color:var(--sub);}

/* Rates: one card per season */
.rates-cards{display:grid; gap:14px; margin-top:12px;}
.season-card{
  border:1px solid var(--line); border-radius:10px; background:var(--panel); padding:12px 14px;
  break-inside:avoid; page-break-inside:avoid;
}
.season-head{margin-bottom:2px;}
.season-title{font-size:14px; font-weight:700;}
.season-title .th{display:block; font-size:12px; font-weight:400; color:var(--sub);}
.season-name-row{display:block;}
.season-name-row .q{display:block; font-size:12px; font-weight:600; color:var(--sub); margin-bottom:1px;}
.season-name{margin-top:2px; font-size:16px; font-weight:700;}
.season-actions{display:flex; gap:8px; flex-wrap:wrap; margin:8px 0 4px;}
.btn-small{
  font:inherit; font-size:12px; font-weight:600; padding:7px 11px; border-radius:7px;
  border:1px solid var(--line); background:var(--bg); color:var(--ink); cursor:pointer;
}
.btn-small.btn-danger{color:var(--danger); border-color:var(--danger-line);}
.rate-row{
  display:flex; align-items:center; gap:12px; justify-content:space-between;
  min-height:44px; padding:4px 0; border-bottom:1px dashed var(--line);
}
.rate-row:last-child{border-bottom:none;}
.rate-row .q{flex:1 1 auto; min-width:0; margin:0; font-size:13.5px; font-weight:600;}
.rate-row .q .th{display:block; font-weight:400; color:var(--sub); font-size:11.5px;}
.rate-row .fill{flex:0 0 116px; width:116px; text-align:right;}
.add-season-row{margin-top:14px;}
.btn-add{
  font:inherit; font-size:14px; font-weight:600; width:100%; padding:12px 16px;
  border-radius:9px; border:1px dashed var(--accent); background:var(--accent-soft);
  color:var(--accent); cursor:pointer;
}
.rates-note{margin-top:10px;}

.amen-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:6px 14px; margin-top:4px;}
@media (max-width:900px){ .amen-grid{grid-template-columns:repeat(2,1fr);} }
@media (max-width:420px){ .amen-grid{grid-template-columns:1fr;} }

/* Draft banner */
.draft-banner{
  display:flex; gap:10px; align-items:center; flex-wrap:wrap;
  background:#fff8e6; border:1px solid #e6d5a8; border-radius:9px;
  padding:10px 12px; margin:0 0 16px; font-size:13px;
}
.draft-banner p{flex:1 1 220px; margin:0;}
.btn-chip{
  font:inherit; font-size:12.5px; font-weight:600; padding:7px 12px; border-radius:7px;
  border:1px solid var(--line); background:var(--panel); color:var(--ink); cursor:pointer;
}

/* Validation */
.field.invalid .fill,.season-card.invalid .fill{border-bottom-color:var(--danger);}
.error-msg{color:var(--danger); font-size:12.5px; margin:4px 0 0;}

/* Sticky submit bar */
.submit-bar{
  position:sticky; bottom:0; z-index:5; margin-top:24px;
  background:var(--bg); border-top:1px solid var(--line);
  padding:10px 0 calc(10px + env(safe-area-inset-bottom));
}
.submit-inner{max-width:820px; margin:0 auto; display:flex; gap:12px; align-items:center; flex-wrap:wrap;}
.submit-inner .privacy{flex:1 1 240px; margin:0; font-size:12px; color:var(--sub);}
.btn-send{
  flex:1 1 220px; min-width:0; max-width:100%;
  font:inherit; font-size:15px; font-weight:700; padding:13px 22px; border-radius:9px;
  border:1px solid var(--accent); background:var(--accent); color:#fff; cursor:pointer;
  white-space:normal; overflow-wrap:break-word;
}
.btn-send[disabled]{opacity:.6; cursor:default;}
.submit-error{
  background:var(--danger-soft); border:1px solid var(--danger-line); color:var(--danger);
  border-radius:9px; padding:10px 12px; margin:12px 0 0; font-size:13px;
}

/* Confirmation */
.success{background:var(--accent-soft); border:1px solid var(--accent-line); border-radius:12px; padding:22px; text-align:center;}
.success .big{font-size:20px; font-weight:700; margin:0 0 6px;}
.success p{margin:0 0 10px;}
.success .ref{display:inline-block; background:var(--panel); border:1px solid var(--line); border-radius:7px; padding:6px 10px; font-size:13px; font-weight:600;}
.success .th{color:var(--sub); font-size:13px;}

/* Index picker */
.cards{display:grid; gap:16px; grid-template-columns:1fr 1fr; margin:24px 0;}
@media (max-width:640px){ .cards{grid-template-columns:1fr;} }
.card{
  display:block; text-decoration:none; color:var(--ink); background:var(--panel);
  border:1px solid var(--line); border-radius:12px; padding:22px;
  min-height:160px; border-top:4px solid var(--accent);
}
.card:hover{border-color:var(--accent);}
.card .card-title{font-size:22px; font-weight:700; margin:0 0 4px;}
.card .card-title .th{display:block; font-size:15px; font-weight:600; color:var(--sub);}
.card p{margin:8px 0 0; font-size:13.5px; color:var(--sub);}

footer{border-top:1px solid var(--line); margin-top:30px; padding-top:14px; font-size:12px; color:var(--sub);}

/* Honeypot: off-screen, not display:none */
.hp{position:absolute; left:-9999px; top:auto; width:1px; height:1px; overflow:hidden;}

@media print{
  body{background:#fff; font-size:12.5px;}
  .noprint{display:none;}
  .wrap{max-width:none; padding:0 6mm;}
  .intro{background:#fff; border:1px solid #999;}
  section{break-inside:avoid;}
  .fill,textarea.fill,select.fill{font-size:12.5px;}
  .season-actions,.add-season-row,.submit-bar,.draft-banner,.error-msg{display:none;}
  .season-card{border-color:#999;}
  .rate-row{min-height:0; padding:2px 0;}
  .rate-row .fill{flex-basis:90px; width:90px;}
  @page{margin:14mm 12mm;}
}