:root {
  --bg: #ffffff;
  --bg-alt: #fafafa;
  --ink: #0a0a0a;
  --ink-2: #1f1f1f;
  --muted: #6b6b6b;
  --line: #ececec;
  --accent: #0a0a0a;
  --hi: #d4ff3a;
  --radius: 4px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { background: var(--bg); color: var(--ink); }
body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  letter-spacing: -0.005em;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
::selection { background: var(--hi); color: var(--ink); }
.mono { font-family: 'JetBrains Mono', ui-monospace, monospace; font-size: 0.78rem; letter-spacing: 0.02em; text-transform: uppercase; }
.container { max-width: 1240px; margin: 0 auto; padding: 0 32px; }
.hide-mobile { display: inline; }
@media (max-width: 700px) { .hide-mobile { display: none; } }

/* NAV */
nav.top {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.85);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--line);
}
nav.top .row {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 600; letter-spacing: -0.01em; }
.brand .dot { width: 9px; height: 9px; background: var(--ink); border-radius: 50%; }
.nav-links { display: flex; gap: 28px; font-size: 0.92rem; color: var(--ink-2); }
.nav-links a { color: var(--ink-2); transition: color .15s ease; }
.nav-links a:hover { color: var(--muted); }
.nav-links a.active { color: var(--ink); }
.cta-mini {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--ink); color: #fff; padding: 9px 16px;
  border-radius: 100px; font-size: 0.88rem; font-weight: 500;
  transition: transform .15s ease, background .2s ease;
}
.cta-mini:hover { background: #2a2a2a; transform: translateY(-1px); }
.cta-mini::after { content: "→"; }

/* HERO */
header.hero { padding: 120px 0 100px; border-bottom: 1px solid var(--line); }
header.hero.lg { padding: 120px 0 100px; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  color: var(--muted); margin-bottom: 28px;
}
.eyebrow .pulse {
  width: 6px; height: 6px; background: #16a34a; border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(22,163,74,0.5);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(22,163,74,0.45); }
  70% { box-shadow: 0 0 0 8px rgba(22,163,74,0); }
  100% { box-shadow: 0 0 0 0 rgba(22,163,74,0); }
}
h1.display {
  font-size: clamp(44px, 7vw, 96px);
  font-weight: 600;
  line-height: 0.98;
  letter-spacing: -0.035em;
  color: var(--ink);
  max-width: 14ch;
}
h1.display em {
  font-style: normal;
  background: linear-gradient(180deg, transparent 60%, var(--hi) 60%);
  padding: 0 4px;
}
h1.xl { font-size: clamp(44px, 7vw, 96px); max-width: 14ch; }
.lede {
  margin-top: 32px; max-width: 56ch;
  font-size: clamp(17px, 1.6vw, 20px);
  color: var(--ink-2); font-weight: 400;
}
.actions, .hero-actions { display: flex; gap: 14px; margin-top: 44px; align-items: center; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 16px 26px; border-radius: 100px;
  font-size: 0.95rem; font-weight: 500;
  transition: transform .15s ease, background .2s ease, border-color .2s ease;
  border: 1px solid transparent;
}
.btn-primary { background: var(--ink); color: #fff; }
.btn-primary:hover { background: #2a2a2a; transform: translateY(-1px); }
.btn-ghost { color: var(--ink); border-color: var(--line); background: #fff; }
.btn-ghost:hover { border-color: var(--ink); }

.hero-meta { display: flex; gap: 40px; margin-top: 80px; flex-wrap: wrap; color: var(--muted); }
.hero-meta b { color: var(--ink); font-weight: 600; }

/* BREADCRUMB */
.crumb { color: var(--muted); margin-bottom: 16px; }
.crumb a:hover { color: var(--ink); }
.crumb span { margin: 0 8px; }

/* SECTIONS */
section { padding: 120px 0; border-bottom: 1px solid var(--line); }
section.tight { padding: 70px 0; }
.sec-head {
  display: grid; grid-template-columns: 1fr 2fr; gap: 60px;
  margin-bottom: 64px;
}
.sec-head h2 {
  font-size: clamp(32px, 4vw, 56px);
  font-weight: 600; line-height: 1.02; letter-spacing: -0.025em;
  max-width: 18ch;
}
.sec-head .lede { color: var(--muted); font-size: 1.05rem; max-width: 52ch; margin: 0; }
@media (max-width: 800px) { .sec-head { grid-template-columns: 1fr; gap: 24px; } }

/* GRIDS */
.grid-2, .grid-3, .grid-4 { display: grid; gap: 0; border-top: 1px solid var(--line); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.card {
  padding: 40px 32px 36px;
  border-right: 1px solid var(--line);
  background: var(--bg);
  transition: background .25s ease;
  display: block;
}
.card:last-child { border-right: none; }
.card:hover { background: var(--bg-alt); }
.card .num { color: var(--muted); margin-bottom: 24px; }
.card h3 { font-size: 1.4rem; font-weight: 600; letter-spacing: -0.015em; margin-bottom: 14px; }
.card p { color: var(--ink-2); font-size: 0.96rem; }
.card ul { list-style: none; margin-top: 18px; font-size: 0.9rem; color: var(--muted); }
.card ul li { padding: 6px 0; border-top: 1px solid var(--line); }
.card ul li:first-child { border-top: none; }
.card .price { display: inline-block; margin-top: 16px; font-size: 0.85rem; color: var(--muted); border: 1px solid var(--line); padding: 5px 10px; border-radius: 100px; }
.card .arrow { display: inline-flex; margin-top: 18px; color: var(--ink); font-weight: 500; font-size: 0.9rem; }
.card .arrow::after { content: " →"; }
@media (max-width: 900px) {
  .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .card { border-right: none; border-bottom: 1px solid var(--line); }
  .card:last-child { border-bottom: none; }
}

/* PROCESS */
.method { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.step { border-top: 1px solid var(--ink); padding-top: 20px; }
.step .k { color: var(--muted); margin-bottom: 18px; display: block; }
.step h4 { font-weight: 600; font-size: 1.1rem; letter-spacing: -0.01em; margin-bottom: 8px; }
.step p { color: var(--muted); font-size: 0.92rem; }
@media (max-width: 800px) { .method { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .method { grid-template-columns: 1fr; } }

/* PROOF */
.proof { background: var(--bg-alt); margin: 0 -32px; padding: 80px 32px; }
blockquote.q {
  font-size: clamp(22px, 2.4vw, 32px);
  font-weight: 500; letter-spacing: -0.02em; line-height: 1.25;
  max-width: 28ch;
}
.q-meta { margin-top: 28px; color: var(--muted); }
.q-meta b { color: var(--ink); font-weight: 600; }

/* STRIP (FAQ-ish dl/dt/dd) */
.strip { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; }
.strip dl { display: grid; gap: 24px; }
.strip dt { font-weight: 600; letter-spacing: -0.005em; }
.strip dd { color: var(--muted); margin-top: 6px; }
@media (max-width: 800px) { .strip { grid-template-columns: 1fr; } }

/* DETAIL PAGES */
.detail-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 80px; }
@media (max-width: 900px) { .detail-grid { grid-template-columns: 1fr; gap: 40px; } }
.detail-grid h2 { font-size: 1.6rem; font-weight: 600; letter-spacing: -0.015em; margin: 40px 0 14px; }
.detail-grid h2:first-child { margin-top: 0; }
.detail-grid p { color: var(--ink-2); margin-bottom: 14px; }
.detail-grid ul { list-style: none; margin: 8px 0 24px; }
.detail-grid li { position: relative; padding: 6px 0 6px 24px; color: var(--ink-2); border-bottom: 1px solid var(--line); }
.detail-grid li::before { content: "↳"; position: absolute; left: 0; color: var(--muted); }
.detail-grid li:last-child { border-bottom: none; }

.spec-card {
  border: 1px solid var(--line); border-radius: 16px;
  padding: 28px; position: sticky; top: 90px;
  align-self: start;
}
.spec-card dl { display: grid; gap: 16px; }
.spec-card dt { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); margin-bottom: 4px; }
.spec-card dd { font-weight: 500; }
.spec-card .price-big { font-size: 1.6rem; font-weight: 600; letter-spacing: -0.02em; }
.spec-card .btn { width: 100%; justify-content: center; margin-top: 8px; }

/* BLOG */
.post-list { border-top: 1px solid var(--line); }
.post-row {
  display: grid; grid-template-columns: 100px 1fr 200px;
  gap: 32px; padding: 28px 0;
  border-bottom: 1px solid var(--line);
  transition: background .2s ease;
}
.post-row:hover { background: var(--bg-alt); padding-left: 12px; padding-right: 12px; margin: 0 -12px; }
.post-row .date { color: var(--muted); }
.post-row h3 { font-size: 1.3rem; font-weight: 600; letter-spacing: -0.015em; }
.post-row .tag { font-size: 0.78rem; color: var(--muted); justify-self: end; align-self: center; }
@media (max-width: 700px) {
  .post-row { grid-template-columns: 1fr; gap: 8px; }
  .post-row .tag { justify-self: start; }
}

article.prose { max-width: 68ch; margin: 0 auto; }
article.prose p { margin-bottom: 22px; color: var(--ink-2); font-size: 1.05rem; line-height: 1.7; }
article.prose h2 { font-size: 1.6rem; font-weight: 600; letter-spacing: -0.02em; margin: 48px 0 16px; }
article.prose h3 { font-size: 1.2rem; font-weight: 600; margin: 32px 0 10px; }
article.prose ul, article.prose ol { margin: 0 0 22px 24px; color: var(--ink-2); }
article.prose li { margin-bottom: 8px; }
article.prose blockquote { border-left: 3px solid var(--ink); padding-left: 18px; margin: 24px 0; color: var(--muted); font-style: normal; }

/* CTA */
section.cta { padding: 140px 0; border-bottom: 1px solid var(--line); }
.cta-wrap {
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 80px;
  background:
    radial-gradient(80% 60% at 100% 0%, rgba(212,255,58,0.18), transparent 60%),
    var(--bg);
}
.cta-wrap h2 {
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 600; letter-spacing: -0.03em; line-height: 1; max-width: 16ch;
}
.cta-wrap p { color: var(--muted); margin-top: 20px; max-width: 50ch; }
@media (max-width: 700px) { .cta-wrap { padding: 40px 28px; } }

/* FORM */
.form { display: grid; gap: 18px; max-width: 600px; }
.form label { display: grid; gap: 6px; font-size: 0.9rem; color: var(--ink-2); font-weight: 500; }
.form input, .form textarea, .form select {
  font: inherit; border: 1px solid var(--line);
  padding: 14px 16px; border-radius: 10px;
  background: var(--bg); color: var(--ink);
  transition: border-color .15s ease;
}
.form input:focus, .form textarea:focus, .form select:focus { outline: none; border-color: var(--ink); }
.form textarea { min-height: 140px; resize: vertical; }

/* FOOTER */
footer { padding: 56px 0 80px; }
.foot {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px; align-items: start;
}
.foot small { color: var(--muted); }
.foot h5 { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); margin-bottom: 14px; font-weight: 500; }
.foot a { display: block; padding: 4px 0; color: var(--ink-2); }
.foot a:hover { color: var(--ink); }
.foot-bottom {
  display: flex; justify-content: space-between; align-items: center;
  margin-top: 56px; padding-top: 24px; border-top: 1px solid var(--line);
  color: var(--muted); font-size: 0.85rem; flex-wrap: wrap; gap: 12px;
}
@media (max-width: 800px) { .foot { grid-template-columns: 1fr 1fr; } }
