:root {
  --bg: #f7f8fa;
  --surface: #ffffff;
  --text: #16181d;
  --muted: #5f6672;
  --border: #e3e6ea;
  --accent: #4f46e5;
  --accent-hover: #4338ca;
  --accent-soft: #eef2ff;
  --good: #16a34a;
  --warn: #d97706;
  --bad: #dc2626;
  --radius: 10px;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111318;
    --surface: #1a1d24;
    --text: #e8eaed;
    --muted: #9aa2ad;
    --border: #2a2e37;
    --accent: #818cf8;
    --accent-hover: #a5b0fc;
    --accent-soft: #262a41;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: 1080px; margin: 0 auto; padding: 0 1.25rem; }

/* nav */
nav.site {
  display: flex; align-items: center; gap: 1.5rem;
  padding: 1rem 1.25rem; max-width: 1080px; margin: 0 auto;
}
nav.site .logo { font-weight: 800; font-size: 1.15rem; color: var(--text); letter-spacing: -0.02em; }
nav.site .logo span { color: var(--accent); }
nav.site .links { display: flex; gap: 1.25rem; margin-left: auto; align-items: center; }
nav.site a { color: var(--muted); font-size: 0.95rem; }
nav.site a.btn { color: #fff; }

/* buttons */
.btn {
  display: inline-block; padding: 0.6rem 1.2rem; border-radius: var(--radius);
  background: var(--accent); color: #fff; font-weight: 600; border: none;
  cursor: pointer; font-size: 0.95rem; text-decoration: none;
}
.btn:hover { background: var(--accent-hover); text-decoration: none; }
.btn.secondary { background: transparent; color: var(--accent); border: 1px solid var(--accent); }
.btn.secondary:hover { background: var(--accent-soft); }
.btn.small { padding: 0.35rem 0.75rem; font-size: 0.85rem; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* cards & sections */
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.5rem;
}
section { padding: 3rem 0; }
h1 { font-size: 2.4rem; line-height: 1.15; letter-spacing: -0.03em; margin: 0 0 1rem; }
h2 { font-size: 1.6rem; letter-spacing: -0.02em; margin: 0 0 1.25rem; }
.muted { color: var(--muted); }
.center { text-align: center; }

/* grid */
.grid { display: grid; gap: 1.25rem; }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 800px) { .grid.cols-3, .grid.cols-4 { grid-template-columns: 1fr; } }

/* pricing */
.price { font-size: 2.2rem; font-weight: 800; margin: 0.5rem 0; }
.price small { font-size: 1rem; font-weight: 400; color: var(--muted); }
.plan.featured { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); position: relative; }
.plan .tag {
  position: absolute; top: -0.8rem; left: 50%; transform: translateX(-50%);
  background: var(--accent); color: #fff; font-size: 0.75rem; font-weight: 700;
  padding: 0.15rem 0.75rem; border-radius: 99px;
}
.plan ul { padding-left: 1.2rem; margin: 1rem 0; }
.plan li { margin: 0.4rem 0; font-size: 0.95rem; }

/* tables */
.tablewrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
table { border-collapse: collapse; width: 100%; font-size: 0.9rem; }
th, td { text-align: left; padding: 0.6rem 0.9rem; border-bottom: 1px solid var(--border); }
th { background: var(--accent-soft); font-weight: 600; white-space: nowrap; position: sticky; top: 0; }
tr:last-child td { border-bottom: none; }
td.num { text-align: right; font-variant-numeric: tabular-nums; }
.pill {
  display: inline-block; padding: 0.1rem 0.6rem; border-radius: 99px;
  font-size: 0.78rem; font-weight: 600; background: var(--accent-soft); color: var(--accent);
  white-space: nowrap;
}
.pill.good { background: color-mix(in srgb, var(--good) 15%, transparent); color: var(--good); }
.pill.warn { background: color-mix(in srgb, var(--warn) 15%, transparent); color: var(--warn); }
.pill.bad { background: color-mix(in srgb, var(--bad) 15%, transparent); color: var(--bad); }

/* forms */
label { display: block; font-weight: 600; font-size: 0.9rem; margin: 1rem 0 0.3rem; }
label .opt { font-weight: 400; color: var(--muted); }
input[type="text"], input[type="email"], input[type="url"], input[type="password"],
input[type="search"], select, textarea {
  width: 100%; padding: 0.55rem 0.75rem; border: 1px solid var(--border);
  border-radius: 8px; background: var(--surface); color: var(--text);
  font: inherit; font-size: 0.95rem;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; border-color: transparent; }
textarea { resize: vertical; min-height: 90px; }
.field-row { display: flex; gap: 1rem; }
.field-row > div { flex: 1; }
.form-error { color: var(--bad); font-weight: 600; margin-top: 1rem; }
.form-ok { color: var(--good); font-weight: 600; margin-top: 1rem; }

/* tier picker */
.tier-pick { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-top: 0.5rem; }
@media (max-width: 640px) { .tier-pick { grid-template-columns: 1fr; } .field-row { flex-direction: column; gap: 0; } }
.tier-pick label {
  margin: 0; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1rem; cursor: pointer; background: var(--surface);
}
.tier-pick input { display: none; }
.tier-pick label:has(input:checked) { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.tier-pick .t-name { font-weight: 700; }
.tier-pick .t-price { font-size: 1.4rem; font-weight: 800; margin: 0.2rem 0; }
.tier-pick .t-desc { font-weight: 400; font-size: 0.85rem; color: var(--muted); }

/* checklist filters */
.filters { display: flex; gap: 0.75rem; flex-wrap: wrap; margin: 1.25rem 0; align-items: center; }
.filters input[type="search"] { max-width: 260px; }
.filters select { width: auto; }
.filters .count { margin-left: auto; color: var(--muted); font-size: 0.9rem; }

/* footer */
footer { border-top: 1px solid var(--border); padding: 2rem 0 3rem; margin-top: 3rem; color: var(--muted); font-size: 0.9rem; }
footer .container { display: flex; gap: 2rem; flex-wrap: wrap; justify-content: space-between; }

/* misc */
.hero { padding: 4.5rem 0 3rem; }
.hero .sub { font-size: 1.2rem; color: var(--muted); max-width: 640px; margin: 0 0 2rem; }
.cta-row { display: flex; gap: 1rem; flex-wrap: wrap; }
.step-num {
  display: inline-flex; width: 2rem; height: 2rem; border-radius: 99px;
  background: var(--accent); color: #fff; font-weight: 700;
  align-items: center; justify-content: center; margin-bottom: 0.75rem;
}
.faq details { border-bottom: 1px solid var(--border); padding: 0.9rem 0; }
.faq summary { font-weight: 600; cursor: pointer; }
.faq p { color: var(--muted); }
.banner {
  background: var(--accent-soft); border: 1px solid var(--accent);
  border-radius: var(--radius); padding: 1rem 1.25rem; margin: 1.5rem 0;
  display: flex; gap: 1rem; align-items: center; flex-wrap: wrap;
}
.banner .btn { margin-left: auto; }