:root {
  --bg: #f7f5f0;
  --surface: #ffffff;
  --ink: #18212b;
  --muted: #5a6470;
  --line: #e4dfd5;
  --accent: #0e6b66;
  --accent-ink: #ffffff;
  --accent-soft: #e2f0ee;
  --practitioner: #0e6b66;
  --practitioner-soft: #e2f0ee;
  --vendor: #8a520f;
  --vendor-soft: #fbefdc;
  --builder: #3c4f9a;
  --builder-soft: #e7eaf7;
  --mixed: #5a6470;
  --mixed-soft: #eceae5;
  --code-bg: #f1eee7;
  --shadow: 0 1px 2px rgba(24, 33, 43, .05), 0 4px 16px rgba(24, 33, 43, .05);
  --radius: 14px;
  --serif: "Source Serif 4", Georgia, serif;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #11161c;
    --surface: #181f27;
    --ink: #e9edf1;
    --muted: #9aa5b1;
    --line: #2a333d;
    --accent: #4fb8af;
    --accent-ink: #0b1215;
    --accent-soft: #16302e;
    --practitioner: #6fcfc6;
    --practitioner-soft: #16302e;
    --vendor: #f0b45f;
    --vendor-soft: #33261a;
    --builder: #9fb0f0;
    --builder-soft: #1f2540;
    --mixed: #b4bcc6;
    --mixed-soft: #262d35;
    --code-bg: #1f272f;
    --shadow: none;
  }
}

:root[data-theme="dark"] {
  --bg: #11161c;
  --surface: #181f27;
  --ink: #e9edf1;
  --muted: #9aa5b1;
  --line: #2a333d;
  --accent: #4fb8af;
  --accent-ink: #0b1215;
  --accent-soft: #16302e;
  --practitioner: #6fcfc6;
  --practitioner-soft: #16302e;
  --vendor: #f0b45f;
  --vendor-soft: #33261a;
  --builder: #9fb0f0;
  --builder-soft: #1f2540;
  --mixed: #b4bcc6;
  --mixed-soft: #262d35;
  --code-bg: #1f272f;
  --shadow: none;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.6 var(--sans);
  padding-bottom: 64px;
}
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 3px; }
img, svg { display: block; }
h1, h2, h3 { font-family: var(--serif); line-height: 1.2; margin: 0 0 .5em; font-weight: 600; letter-spacing: -.01em; }
h1 { font-size: clamp(2rem, 5vw, 3.1rem); }
h2 { font-size: clamp(1.4rem, 3vw, 1.9rem); }
h3 { font-size: 1.2rem; }
p { margin: 0 0 1em; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 760px; }

.testbar {
  background: var(--ink);
  color: var(--bg);
  font-size: 13px;
  text-align: center;
  padding: 6px 16px;
}

.topnav { border-bottom: 1px solid var(--line); background: var(--surface); }
.topnav .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 64px; flex-wrap: wrap; }
.logo { font-family: var(--serif); font-weight: 700; font-size: 1.2rem; color: var(--ink); text-decoration: none; display: flex; align-items: center; gap: 10px; }
.logo-mark { width: 28px; height: 28px; border-radius: 8px; background: var(--accent); color: var(--accent-ink); display: grid; place-items: center; font: 700 14px/1 var(--sans); }
.topnav nav { display: flex; gap: 18px; flex-wrap: wrap; font-size: 15px; }
.topnav nav a { color: var(--muted); text-decoration: none; }
.topnav nav a:hover { color: var(--ink); }

.hero { padding: 64px 0 40px; }
.hero p.lead { font-size: 1.15rem; color: var(--muted); max-width: 640px; }
.eyebrow { font-size: 13px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--accent); margin-bottom: 12px; }

.signup { display: flex; gap: 10px; flex-wrap: wrap; margin: 24px 0 10px; max-width: 520px; }
.signup input {
  flex: 1 1 240px; min-width: 0; padding: 13px 16px; font: inherit; color: var(--ink);
  background: var(--surface); border: 1px solid var(--line); border-radius: 10px;
}
.signup input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 20px; border-radius: 10px; border: 0; font: 600 15px/1 var(--sans);
  background: var(--accent); color: var(--accent-ink); cursor: pointer; text-decoration: none;
}
.btn.secondary { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.formnote { font-size: 13px; color: var(--muted); min-height: 1.4em; }
.trust { display: flex; gap: 18px; flex-wrap: wrap; font-size: 14px; color: var(--muted); margin-top: 18px; }
.trust span::before { content: "✓ "; color: var(--accent); font-weight: 700; }

section.block { padding: 40px 0; }
.section-head { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; flex-wrap: wrap; margin-bottom: 20px; }
.section-head p { color: var(--muted); margin: 0; }

.grid { display: grid; gap: 16px; }
.grid.cats { grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); }
.grid.cases { grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }

.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px; box-shadow: var(--shadow); display: flex; flex-direction: column; gap: 10px;
  color: inherit; text-decoration: none;
}
a.card:hover { border-color: var(--accent); }
.card .rank { font-size: 12px; color: var(--muted); font-weight: 600; }
.card h3 { margin: 0; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
.card .count { margin-top: auto; font-size: 13px; font-weight: 600; color: var(--accent); }
.card.soon { opacity: .75; }
.card.soon .count { color: var(--muted); }
.icon { width: 36px; height: 36px; border-radius: 10px; background: var(--accent-soft); color: var(--accent); display: grid; place-items: center; }
.icon svg { width: 20px; height: 20px; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { font-size: 12px; padding: 3px 8px; border-radius: 999px; background: var(--bg); border: 1px solid var(--line); color: var(--muted); }

.badges { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.badge { font-size: 12px; font-weight: 600; padding: 4px 10px; border-radius: 999px; white-space: nowrap; }
.badge.cat { background: var(--accent-soft); color: var(--accent); }
.badge.src-practitioner { background: var(--practitioner-soft); color: var(--practitioner); }
.badge.src-vendor { background: var(--vendor-soft); color: var(--vendor); }
.badge.src-builder { background: var(--builder-soft); color: var(--builder); }
.badge.src-mixed { background: var(--mixed-soft); color: var(--mixed); }
.case-card p { display: -webkit-box; -webkit-line-clamp: 4; -webkit-box-orient: vertical; overflow: hidden; }
.case-card .keyresult { font-size: 14px; color: var(--ink); border-top: 1px solid var(--line); padding-top: 10px; margin-top: auto; }

.labels { display: grid; gap: 12px; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); }
.labels div { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; font-size: 14px; color: var(--muted); }
.labels .badge { display: inline-block; margin-bottom: 8px; }

.cta {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px; display: flex; justify-content: space-between; align-items: center; gap: 20px; flex-wrap: wrap;
}
.cta p { color: var(--muted); margin: 0; max-width: 560px; }

footer { border-top: 1px solid var(--line); margin-top: 40px; padding: 28px 0; color: var(--muted); font-size: 14px; }
footer .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

/* Case page */
.crumbs { font-size: 14px; color: var(--muted); padding-top: 28px; }
.crumbs a { color: var(--muted); }
.case-head { padding: 16px 0 8px; }
.case-head .dek { font-size: 1.15rem; color: var(--muted); }
.glance {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; overflow: hidden;
  background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); margin: 20px 0 8px;
}
.glance div { padding: 14px 16px; background: var(--surface); }
.glance dt { font-size: 12px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); font-weight: 600; }
.glance dd { margin: 4px 0 0; font-size: 15px; }
.article h2 { margin-top: 36px; }
.article ul { padding-left: 1.2em; }
.article li { margin-bottom: .5em; }
.results { list-style: none; padding: 0 !important; display: grid; gap: 10px; }
.results li { background: var(--surface); border: 1px solid var(--line); border-left: 4px solid var(--accent); border-radius: 10px; padding: 12px 16px; margin: 0; }
.results a { font-size: 13px; }
.caveats li::marker { color: var(--vendor); }
blockquote {
  margin: 28px 0; padding: 4px 0 4px 20px; border-left: 3px solid var(--accent);
  font-family: var(--serif); font-size: 1.3rem; line-height: 1.4;
}
blockquote footer { border: 0; margin: 8px 0 0; padding: 0; font: 14px/1.4 var(--sans); color: var(--muted); }
.promptbox { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.promptbox header { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 12px 16px; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.promptbox header strong { font-size: 15px; }
.promptbox pre {
  margin: 0; padding: 16px; background: var(--code-bg); white-space: pre-wrap; word-wrap: break-word;
  font: 14px/1.55 ui-monospace, SFMono-Regular, Menlo, monospace;
}
.promptbox .note { font-size: 13px; color: var(--muted); padding: 10px 16px; border-top: 1px solid var(--line); margin: 0; }
.copybtn { padding: 8px 14px; font-size: 13px; }
.sources { font-size: 14px; }
.sources li { margin-bottom: .6em; }
.sources .meta { color: var(--muted); }
.sponsor-slot {
  border: 1px dashed var(--line); border-radius: var(--radius); padding: 16px; margin: 32px 0;
  font-size: 14px; color: var(--muted); display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; align-items: center;
}
.sponsor-slot strong { color: var(--ink); }

/* Sponsor page */
.pricebox { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); }
.price { font-family: var(--serif); font-size: 2.4rem; font-weight: 700; }
.sold { font-size: 14px; color: var(--muted); }
.meter { height: 8px; background: var(--bg); border-radius: 999px; border: 1px solid var(--line); overflow: hidden; margin: 10px 0 4px; }
.meter span { display: block; height: 100%; background: var(--accent); }
.checklist { list-style: none; padding: 0; }
.checklist li { padding-left: 28px; position: relative; margin-bottom: 10px; }
.checklist li::before { content: "✓"; position: absolute; left: 4px; color: var(--accent); font-weight: 700; }

/* Bottom sponsor bar (as on the original) */
.sponsorbar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 10;
  background: var(--surface); border-top: 1px solid var(--line);
  display: flex; align-items: center; justify-content: center; gap: 12px; padding: 10px 44px 10px 16px;
  font-size: 14px; color: var(--muted); text-align: center;
}
.sponsorbar a { font-weight: 600; }
.sponsorbar button { position: absolute; right: 10px; top: 50%; transform: translateY(-50%); background: none; border: 0; color: var(--muted); font-size: 20px; cursor: pointer; padding: 4px 8px; }
.sponsorbar.hidden { display: none; }

@media (max-width: 640px) {
  .hero { padding: 40px 0 24px; }
  .wrap { padding: 0 16px; }
  .topnav nav { gap: 14px; font-size: 14px; }
  .glance { grid-template-columns: repeat(2, 1fr); }
  .hide-sm { display: none; }
}

/* Forms */
form.stack { display: grid; gap: 16px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; margin-bottom: 32px; }
form.stack label { display: grid; gap: 6px; font-weight: 600; font-size: 15px; }
form.stack input, form.stack select, form.stack textarea {
  font: 400 16px/1.4 var(--sans); color: var(--ink); background: var(--bg);
  border: 1px solid var(--line); border-radius: 10px; padding: 11px 13px; width: 100%;
}
form.stack input:focus, form.stack select:focus, form.stack textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
form.stack fieldset { border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; display: grid; gap: 8px; margin: 0; }
form.stack legend { font-weight: 600; font-size: 15px; padding: 0 4px; }
form.stack label.inline { display: flex; gap: 10px; align-items: flex-start; font-weight: 400; }
form.stack label.inline input { width: auto; margin-top: 4px; }
form.stack .btn { justify-self: start; }
.hp { position: absolute; left: -9999px; }
mark.tbd { background: var(--vendor-soft); color: var(--vendor); padding: 0 4px; border-radius: 4px; }
.signup-note { font-size: 13px; color: var(--muted); margin: 0; }
.signup-note a { color: var(--muted); }
.signup .hp { position: absolute; left: -9999px; width: 1px; height: 1px; }
.adlabel { font-size: 12px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--vendor); }
.dateline { font-size: 14px; color: var(--muted); margin: -4px 0 0; }
.answer { background: var(--accent-soft); border-radius: var(--radius); padding: 20px 22px; margin: 8px 0 24px; }
.answer h2 { margin-top: 0; }
.answer p:last-child { margin-bottom: 0; }
.keynums { padding-left: 1.1em; }
.keynums li { margin-bottom: .6em; }
.tablewrap { overflow-x: auto; margin: 0 0 28px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); }
table.compare { border-collapse: collapse; width: 100%; font-size: 14px; min-width: 620px; }
table.compare th, table.compare td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
table.compare th { font-size: 12px; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); }
.faq h3 { font-size: 1.05rem; margin: 22px 0 6px; }
.checked { font-size: 14px; color: var(--muted); }
.dateline a { color: var(--muted); }