:root {
  --bg: #f7f7f4;
  --card: #ffffff;
  --ink: #17181c;
  --muted: #62656f;
  --line: #e4e4de;
  --brand: #1f6f5c;
  --brand-ink: #ffffff;
  --brand-soft: #e3f1ec;
  --warn: #b4531a;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(0,0,0,.05), 0 6px 24px rgba(0,0,0,.05);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111214;
    --card: #1a1c1f;
    --ink: #ececea;
    --muted: #a0a3ab;
    --line: #2c2f33;
    --brand: #4fbf9f;
    --brand-ink: #0c1512;
    --brand-soft: #18302a;
    --warn: #f0a26b;
    --shadow: none;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--ink);
}
a { color: var(--brand); }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 16px; }

/* Header */
.top { border-bottom: 1px solid var(--line); background: var(--card); }
.top .wrap { display: flex; align-items: center; gap: 16px; height: 60px; }
.logo { font-weight: 800; font-size: 19px; color: var(--ink); text-decoration: none; letter-spacing: -.02em; }
.logo span { color: var(--brand); }
.top nav { margin-left: auto; display: flex; gap: 16px; align-items: center; }
.top nav a { color: var(--muted); text-decoration: none; font-size: 15px; }
.top nav a:hover { color: var(--ink); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  border: 1px solid var(--line); background: var(--card); color: var(--ink);
  padding: 10px 16px; border-radius: 10px; font: inherit; font-weight: 600;
  cursor: pointer; text-decoration: none;
}
.btn:hover { border-color: var(--muted); }
.btn.primary { background: var(--brand); border-color: var(--brand); color: var(--brand-ink); }
.btn.primary:hover { filter: brightness(1.08); }
.btn.small { padding: 6px 10px; font-size: 14px; }
.btn.ghost { background: transparent; border-color: transparent; color: var(--muted); }
.btn[disabled] { opacity: .5; cursor: not-allowed; }

/* Landing */
.hero { padding: 72px 0 48px; text-align: center; }
.hero h1 { font-size: clamp(32px, 6vw, 54px); line-height: 1.08; letter-spacing: -.03em; margin: 0 auto 16px; max-width: 760px; }
.hero p { color: var(--muted); font-size: 19px; max-width: 620px; margin: 0 auto 28px; }
.hero .cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.grid3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; margin: 24px 0 56px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); }
.card h3 { margin: 0 0 6px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); }
.section-title { text-align: center; font-size: 28px; letter-spacing: -.02em; margin: 0 0 8px; }
.section-sub { text-align: center; color: var(--muted); margin: 0 0 24px; }
.pricing { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; max-width: 720px; margin: 0 auto 64px; }
.pricing .price { font-size: 34px; font-weight: 800; margin: 8px 0; }
.pricing .price small { font-size: 15px; color: var(--muted); font-weight: 500; }
.pricing ul { padding-left: 18px; margin: 12px 0 18px; color: var(--muted); }
.pricing .card.featured { border-color: var(--brand); }
.faq { max-width: 720px; margin: 0 auto 64px; }
.faq details { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 14px 18px; margin-bottom: 10px; }
.faq summary { font-weight: 600; cursor: pointer; }
.faq p { color: var(--muted); margin: 10px 0 0; }
footer { border-top: 1px solid var(--line); padding: 28px 0; color: var(--muted); font-size: 14px; }
footer .wrap { display: flex; gap: 16px; flex-wrap: wrap; justify-content: space-between; }

/* App */
.app { display: grid; grid-template-columns: 260px 1fr; gap: 20px; padding: 24px 0 48px; }
.side { display: flex; flex-direction: column; gap: 12px; }
.side .card { padding: 16px; }
.tabs { display: flex; gap: 6px; }
.tab { flex: 1; }
.tab.active { background: var(--brand-soft); border-color: var(--brand); color: var(--ink); }
.list { display: flex; flex-direction: column; gap: 6px; }
.list button {
  text-align: left; background: transparent; border: 1px solid transparent; border-radius: 10px;
  padding: 8px 10px; font: inherit; color: var(--ink); cursor: pointer;
}
.list button:hover { background: var(--bg); }
.list button.active { border-color: var(--brand); background: var(--brand-soft); }
.list small { display: block; color: var(--muted); font-size: 13px; }
.plan { font-size: 14px; color: var(--muted); }
.plan strong { color: var(--ink); }

.field { display: flex; flex-direction: column; gap: 4px; margin-bottom: 14px; }
.field label { font-size: 14px; font-weight: 600; }
.field .hint { font-size: 13px; color: var(--muted); }
input, select, textarea {
  font: inherit; color: var(--ink); background: var(--card);
  border: 1px solid var(--line); border-radius: 10px; padding: 9px 11px; width: 100%;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--brand); outline-offset: 1px; border-color: transparent; }
textarea { min-height: 70px; resize: vertical; }
.row { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; }

.result { background: var(--brand-soft); border-radius: var(--radius); padding: 20px; display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 14px; margin-top: 8px; }
.result div span { display: block; font-size: 13px; color: var(--muted); }
.result div strong { font-size: 26px; letter-spacing: -.02em; }

.items { width: 100%; border-collapse: collapse; margin: 6px 0 12px; }
.items th { text-align: left; font-size: 13px; color: var(--muted); font-weight: 600; padding: 6px 6px; border-bottom: 1px solid var(--line); }
.items td { padding: 6px; vertical-align: top; }
.items td.num { width: 110px; }
.items td.amt { width: 110px; text-align: right; padding-top: 15px; font-variant-numeric: tabular-nums; }
.items td.del { width: 36px; }
.totals { margin-left: auto; max-width: 300px; display: grid; grid-template-columns: 1fr auto; gap: 6px 16px; font-variant-numeric: tabular-nums; }
.totals .grand { font-size: 20px; font-weight: 800; border-top: 1px solid var(--line); padding-top: 8px; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 18px; }
.empty { text-align: center; color: var(--muted); padding: 48px 16px; }
.notice { background: #fff4e5; color: #5c3a14; border-radius: 10px; padding: 10px 14px; font-size: 14px; margin-bottom: 14px; }
@media (prefers-color-scheme: dark) { .notice { background: #33261a; color: #f3d3b0; } }
.toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); background: var(--ink); color: var(--bg); padding: 10px 16px; border-radius: 10px; z-index: 10; font-size: 15px; }

/* Printable quote */
.doc { display: none; }
@media print {
  body { background: #fff; color: #000; }
  .top, .side, .editor, footer, .toast { display: none !important; }
  .app { display: block; padding: 0; }
  .doc { display: block; font-size: 13px; }
  .doc h1 { font-size: 26px; margin: 0 0 4px; }
  .doc .meta { display: flex; justify-content: space-between; gap: 24px; margin: 18px 0 24px; }
  .doc table { width: 100%; border-collapse: collapse; }
  .doc th, .doc td { border-bottom: 1px solid #ddd; padding: 8px 4px; text-align: left; }
  .doc td.r, .doc th.r { text-align: right; }
  .doc .tot { margin: 16px 0 0 auto; width: 260px; }
  .doc .tot div { display: flex; justify-content: space-between; padding: 3px 0; }
  .doc .tot .g { font-weight: 800; font-size: 16px; border-top: 1px solid #000; margin-top: 4px; padding-top: 6px; }
  .doc .notes { margin-top: 28px; white-space: pre-wrap; color: #333; }
}

@media (max-width: 760px) {
  .app { grid-template-columns: 1fr; }
  .top nav a.hide-sm { display: none; }
  .items td.num, .items td.amt { width: 80px; }
}