:root {
  --bg: #fbfaf7; --surface: #ffffff; --ink: #1d1b26; --muted: #5d5a6b; --line: #e3e0d8;
  --accent: #4b3fd1; --accent-ink: #ffffff; --accent-soft: #eeecfb; --warn-bg: #fff6df; --warn-line: #ecd48a;
  --serif: ui-serif, "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14131c; --surface: #1d1c28; --ink: #ecebf3; --muted: #a3a0b4; --line: #2e2c3d;
    --accent: #9b8cff; --accent-ink: #14131c; --accent-soft: #25223d; --warn-bg: #2b2616; --warn-line: #5c4d1e;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 17px/1.6 var(--sans); }
img, svg { max-width: 100%; }
a { color: var(--accent); }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 16px; }
.skip { position: absolute; left: -999px; } .skip:focus { left: 8px; top: 8px; background: var(--surface); padding: 8px 12px; z-index: 10; }

.site-header { border-bottom: 1px solid var(--line); background: var(--bg); position: sticky; top: 0; z-index: 5; }
.bar { display: flex; align-items: center; gap: 16px; min-height: 60px; flex-wrap: wrap; padding-top: 8px; padding-bottom: 8px; }
.brand { display: flex; align-items: center; gap: 10px; font: 600 22px var(--serif); color: var(--ink); text-decoration: none; }
.nav { display: flex; gap: 4px; margin-left: auto; flex-wrap: wrap; }
.nav a { color: var(--ink); text-decoration: none; padding: 6px 12px; border-radius: 8px; }
.nav a:hover, .nav a[aria-current="page"] { background: var(--accent-soft); }

.btn { display: inline-block; padding: 10px 20px; border-radius: 10px; border: 1px solid var(--line); background: var(--surface);
  color: var(--ink); text-decoration: none; font-weight: 600; cursor: pointer; }
.btn:hover { border-color: var(--accent); }
.btn-primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.btn-sm { padding: 6px 14px; font-size: 15px; }
.btn[aria-disabled="true"] { opacity: .55; pointer-events: none; }

.hero { padding: 72px 0 56px; background:
  repeating-linear-gradient(to bottom, transparent 0 22px, var(--line) 22px 23px); background-size: 100% 115px; background-repeat: no-repeat; background-position: 0 24px; }
.hero h1, h1 { font: 600 clamp(34px, 6vw, 56px)/1.1 var(--serif); margin: 0 0 16px; letter-spacing: -.01em; }
.hero p.lead { font-size: 20px; color: var(--muted); max-width: 640px; margin: 0 0 28px; }
.hero .actions { display: flex; gap: 12px; flex-wrap: wrap; }
h2 { font: 600 28px/1.2 var(--serif); margin: 0 0 12px; }
h3 { font: 600 19px/1.3 var(--sans); margin: 0 0 6px; }
section { padding: 40px 0; }
.page-head { padding: 48px 0 8px; }
.page-head p { color: var(--muted); font-size: 19px; max-width: 640px; margin: 0; }
.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 22px; }
.card p { margin: 0; color: var(--muted); }
.card ul { margin: 12px 0 0; padding-left: 20px; color: var(--muted); }
.card.is-yours { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-soft); }
.card .btn { margin-top: 16px; }
.tag { display: inline-block; font-size: 13px; padding: 2px 10px; border-radius: 999px; background: var(--accent-soft); color: var(--accent); margin-bottom: 10px; }
.price { font: 600 32px var(--serif); margin: 4px 0 12px; }
.draft-note { background: var(--warn-bg); border: 1px solid var(--warn-line); border-radius: 10px; padding: 10px 14px; font-size: 15px; margin: 24px 0 0; }
.cta { text-align: center; background: var(--accent-soft); border-radius: 18px; padding: 48px 20px; }
.cta p { color: var(--muted); margin: 0 0 22px; }
.prose { max-width: 720px; } .prose p, .prose li { color: var(--ink); }
.muted { color: var(--muted); }
.site-footer { border-top: 1px solid var(--line); margin-top: 48px; padding: 24px 0; color: var(--muted); font-size: 15px; }
.foot { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.foot nav { display: flex; gap: 16px; flex-wrap: wrap; } .foot a { color: var(--muted); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
@media (max-width: 560px) { .nav { margin-left: 0; order: 3; width: 100%; } .bar .btn { margin-left: auto; } }
details.help { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 4px 18px; margin: 0 0 10px; }
details.help summary { cursor: pointer; font-weight: 600; padding: 10px 0; }
details.help[open] summary { margin-bottom: 4px; }
details.help ol { margin: 0 0 12px; padding-left: 22px; }
details.help li, details.help p { margin: 0 0 8px; }
code { font: 0.92em ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; background: var(--accent-soft); padding: 1px 6px; border-radius: 5px; word-break: break-word; }