:root{
  --bg:#ffffff;
  --text:#111827;
  --muted:#6b7280;
  --line:#e5e7eb;
  --card:#ffffff;
  --soft:#f9fafb;
  --brand:#f59e0b; /* amber */
}

*{box-sizing:border-box}
body{margin:0;font-family:Inter,system-ui,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--text)}
a{color:inherit;text-decoration:none}
.container{max-width:1080px;margin:0 auto;padding:18px}
.topbar{position:sticky;top:0;background:rgba(255,255,255,.9);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);z-index:10}
.topbar .container{display:flex;align-items:center;justify-content:space-between}
.brand{font-weight:650}
.hero{padding:18px 0 6px}
.muted{color:var(--muted)}
.small{font-size:13px;line-height:1.35}
.grid{display:grid;grid-template-columns:1.25fr .75fr;gap:18px;align-items:start}
.card{border:1px solid var(--line);border-radius:14px;background:var(--card);padding:16px}
.sticky{position:sticky;top:78px}
.sep{border:none;border-top:1px solid var(--line);margin:14px 0}

h1{font-size:28px;margin:0 0 6px}
h2{font-size:16px;margin:0 0 10px}
h3{font-size:14px;margin:12px 0 8px}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 12px;border-radius:10px;border:1px solid var(--line);font-weight:600}
.btn-full{width:100%}
.btn-brand{background:var(--brand);border-color:transparent;color:#111827}
.btn-secondary{background:#fff}

.segmented{display:flex;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:var(--soft)}
.seg{flex:1;display:flex;align-items:center;justify-content:center;padding:10px 8px;cursor:pointer;font-weight:600}
.seg input{display:none}
.seg span{opacity:.85}
.seg input:checked + span{opacity:1}
.seg:has(input:checked){background:#fff}

.panel{margin-top:12px;padding:12px;border:1px solid var(--line);border-radius:12px;background:var(--soft)}
.hidden{display:none}

.check{display:flex;gap:10px;align-items:flex-start;padding:8px 0;cursor:pointer}
.check input{margin-top:3px}
.field{display:flex;flex-direction:column;gap:6px;margin:10px 0}
.label{font-size:12px;color:var(--muted)}
input,select,textarea{border:1px solid var(--line);border-radius:10px;padding:10px 10px;font:inherit;background:#fff}
textarea{resize:vertical}
.two{display:grid;grid-template-columns:1fr 1fr;gap:12px}

.lines{display:flex;flex-direction:column;gap:10px;margin:10px 0 14px}
.line{display:flex;justify-content:space-between;gap:10px}
.totals{border-top:1px solid var(--line);padding-top:12px}
.row{display:flex;justify-content:space-between;align-items:center;margin-top:8px}
.total{font-size:20px;font-weight:750}
.save{font-weight:700}

.inline-note{padding:10px 12px;border:1px solid var(--line);border-radius:12px;background:#fff;display:inline-flex;gap:8px;align-items:center}