:root {
  --bg: #ffffff; --fg: #111827; --muted: #6b7280; --line: #e5e7eb; --panel: #f9fafb; --panel2: #f3f4f6;
  --accent: #2563eb; --accent-dark: #1d4ed8; --accent-fg: #ffffff; --ok: #16a34a; --warn: #d97706; --err: #dc2626;
  --radius: 10px; --shadow: 0 1px 2px rgba(0,0,0,.05), 0 8px 24px rgba(17,24,39,.06);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; -webkit-font-smoothing: antialiased; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { line-height: 1.2; margin: 0 0 .5em; letter-spacing: -.01em; }
h1 { font-size: clamp(30px, 4.5vw, 44px); }
h2 { font-size: clamp(22px, 3vw, 30px); }
h3 { font-size: 18px; }
p { margin: 0 0 1em; }
code { font: 13px/1.4 ui-monospace, Consolas, monospace; background: var(--panel2); padding: 2px 5px; border-radius: 4px; word-break: break-all; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 720px; }
.muted { color: var(--muted); }
.small { font-size: 14px; }
.lead { font-size: 19px; color: #374151; max-width: 60ch; }
.eyebrow { text-transform: uppercase; letter-spacing: .08em; font-size: 12px; font-weight: 600; color: var(--accent); margin-bottom: 8px; }

/* buttons */
.btn { display: inline-block; padding: 9px 16px; border-radius: 8px; border: 1px solid var(--line); background: #fff; color: var(--fg); font: inherit; font-weight: 500; cursor: pointer; line-height: 1.2; }
.btn:hover { text-decoration: none; border-color: #9ca3af; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-fg); }
.btn.primary:hover { background: var(--accent-dark); }
.btn.ghost { background: transparent; }
.btn.link { border: 0; background: none; color: var(--accent); padding: 9px 6px; }
.btn.big { padding: 13px 22px; font-size: 17px; }
.btn.full { display: block; width: 100%; text-align: center; margin-top: 16px; }
.btn.small { padding: 5px 10px; font-size: 14px; }
form.inline { display: inline; }

/* header / footer */
.top { border-bottom: 1px solid var(--line); background: rgba(255,255,255,.9); backdrop-filter: blur(8px); position: sticky; top: 0; z-index: 10; }
.nav { display: flex; align-items: center; gap: 24px; height: 62px; }
.brand { font-weight: 700; font-size: 18px; color: var(--fg); display: flex; align-items: center; gap: 8px; }
.brand:hover { text-decoration: none; }
.brand.small { font-size: 16px; margin-bottom: 8px; }
.logo { width: 22px; height: 22px; border-radius: 6px; background: var(--accent) linear-gradient(#fff,#fff) center/14px 2.5px no-repeat; box-shadow: inset 0 -6px 0 -4px #fff, inset 0 6px 0 -4px #fff; }
.links { display: flex; gap: 18px; margin-left: 8px; }
.links a { color: #374151; font-weight: 500; }
.auth { margin-left: auto; display: flex; gap: 8px; align-items: center; }
.foot { border-top: 1px solid var(--line); margin-top: 72px; padding: 40px 0 24px; background: var(--panel); font-size: 14px; }
.foot .cols { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 32px; }
.foot h4 { font-size: 13px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.foot a { display: block; color: #374151; margin: 4px 0; }
.foot .copy { margin-top: 24px; }
.banner { margin: 16px 0 0; padding: 10px 14px; border-radius: 8px; background: var(--panel2); border: 1px solid var(--line); }
.banner.ok { background: #ecfdf5; border-color: #a7f3d0; color: #065f46; }
.banner.err { background: #fef2f2; border-color: #fecaca; color: #991b1b; }

/* hero */
.hero { padding: 64px 0 24px; text-align: center; }
.hero .cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin: 24px 0 10px; }
.hero .lead { margin: 0 auto 8px; }
.demo { margin-top: 36px; }
.browser { border: 1px solid var(--line); border-radius: 12px; box-shadow: var(--shadow); overflow: hidden; background: #fff; text-align: left; }
.browser .bar { display: flex; align-items: center; gap: 6px; padding: 8px 12px; background: var(--panel); border-bottom: 1px solid var(--line); }
.browser .bar span { width: 10px; height: 10px; border-radius: 50%; background: #d1d5db; }
.browser .bar i { margin-left: 10px; font: 12px ui-monospace, monospace; color: var(--muted); background: #fff; border: 1px solid var(--line); border-radius: 6px; padding: 3px 10px; flex: 1; }
.browser .page { display: grid; grid-template-columns: 1fr 300px; min-height: 260px; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; padding: 18px; }
.card { border: 1px solid var(--line); border-radius: 8px; padding: 12px; display: flex; flex-direction: column; gap: 8px; }
.card.sel { outline: 2px solid var(--ok); outline-offset: 2px; background: #f0fdf4; }
.card b { height: 54px; background: var(--panel2); border-radius: 6px; display: block; }
.card i { height: 10px; width: 80%; background: #d1d5db; border-radius: 3px; display: block; }
.card em { height: 10px; width: 40%; background: #93c5fd; border-radius: 3px; display: block; }
.panel { border-left: 1px solid var(--line); background: var(--panel); padding: 12px; font-size: 12px; }
.panel .ph { font-weight: 600; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); font-size: 11px; margin-bottom: 8px; }
.panel .ph span { background: var(--accent); color: #fff; border-radius: 999px; padding: 0 7px; margin-left: 6px; }
.panel table { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--line); border-radius: 6px; }
.panel th, .panel td { padding: 4px 6px; border-bottom: 1px solid var(--line); text-align: left; white-space: nowrap; }
.panel .pb { display: flex; gap: 6px; margin-top: 10px; }
.panel .pb span { padding: 5px 10px; border-radius: 6px; border: 1px solid var(--line); background: #fff; }
.panel .pb span:first-child { background: var(--accent); color: #fff; border-color: var(--accent); }

/* sections */
.features, .how, .uses { padding-top: 64px; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 24px; }
.grid2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin-top: 24px; }
.feature, .use, .box { border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; background: #fff; }
.feature p, .use p { margin: 0; color: #374151; }
.steps { counter-reset: s; list-style: none; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin: 24px 0 0; }
.steps li { counter-increment: s; border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; position: relative; padding-top: 48px; color: #374151; }
.steps li::before { content: counter(s); position: absolute; top: 14px; left: 18px; width: 26px; height: 26px; border-radius: 50%; background: var(--accent); color: #fff; font-weight: 700; display: grid; place-items: center; font-size: 14px; }
.steps b { display: block; color: var(--fg); margin-bottom: 4px; }
.cta-band { margin-top: 72px; text-align: center; padding: 48px 20px; background: var(--panel); border-radius: 16px; }

/* pricing */
.pricing { padding-top: 48px; }
.toggle { display: inline-flex; border: 1px solid var(--line); border-radius: 999px; padding: 4px; margin: 8px 0 24px; background: var(--panel); }
.toggle button { border: 0; background: none; padding: 7px 16px; border-radius: 999px; font: inherit; cursor: pointer; color: #374151; }
.toggle button.on { background: #fff; box-shadow: var(--shadow); color: var(--fg); font-weight: 600; }
.toggle .save { font-size: 12px; color: var(--ok); margin-left: 6px; }
.plans { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; align-items: stretch; }
.plan { border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 20px; position: relative; display: flex; flex-direction: column; background: #fff; }
.plan.popular { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent), var(--shadow); }
.ribbon { position: absolute; top: -12px; left: 20px; background: var(--accent); color: #fff; font-size: 12px; font-weight: 600; padding: 2px 10px; border-radius: 999px; }
.plan h2 { font-size: 20px; }
.plan .blurb { color: var(--muted); font-size: 14px; min-height: 44px; }
.price { margin: 6px 0; }
.amount { font-size: 36px; font-weight: 700; letter-spacing: -.02em; }
.per { color: var(--muted); }
.yearly-note { display: block; font-size: 12px; color: var(--muted); }
.yearly-note[hidden] { display: none; }
.pages { font-size: 15px; margin-bottom: 10px; }
.plan ul { padding-left: 18px; margin: 0; color: #374151; font-size: 14px; flex: 1; }
.plan li { margin: 4px 0; }
.enterprise { margin-top: 28px; border: 1px dashed var(--line); border-radius: var(--radius); padding: 22px; display: flex; align-items: center; justify-content: space-between; gap: 20px; background: var(--panel); }
.enterprise h2 { font-size: 20px; } .enterprise p { margin: 0; color: #374151; }
.faq { margin-top: 56px; max-width: 760px; }
details { border-bottom: 1px solid var(--line); padding: 12px 0; }
summary { cursor: pointer; font-weight: 600; }
details p { margin: 8px 0 0; color: #374151; }

/* forms + account */
.form-page { padding-top: 56px; max-width: 440px; }
.stack { display: flex; flex-direction: column; gap: 14px; margin: 18px 0; }
.stack label { display: flex; flex-direction: column; gap: 5px; font-size: 14px; color: #374151; font-weight: 500; }
input, textarea { font: inherit; padding: 9px 11px; border: 1px solid #d1d5db; border-radius: 8px; width: 100%; background: #fff; color: var(--fg); }
input:focus { outline: 2px solid #bfdbfe; border-color: var(--accent); }
input:disabled { background: var(--panel2); color: var(--muted); }
.account { padding-top: 48px; }
.box h2 { font-size: 18px; }
.planline { display: flex; align-items: center; gap: 10px; font-size: 20px; }
.pill { font-size: 12px; font-weight: 500; padding: 2px 9px; border-radius: 999px; background: var(--panel2); color: #374151; }
.pill.ok { background: #ecfdf5; color: #065f46; } .pill.warn { background: #fffbeb; color: #92400e; }
.usage { margin: 12px 0; }
.bar { height: 8px; background: var(--panel2); border-radius: 999px; overflow: hidden; }
.bar span { display: block; height: 100%; background: var(--accent); }
.actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.keyrow { display: flex; gap: 8px; align-items: center; margin: 8px 0 14px; }
.keyrow code { flex: 1; padding: 8px 10px; font-size: 14px; }

/* docs + library */
.docs { padding-top: 48px; }
.docs h2 { font-size: 22px; margin-top: 32px; }
.docs li { margin: 6px 0; }
.recipes, .recipe { padding-top: 48px; }
.search { display: flex; gap: 8px; max-width: 520px; margin-bottom: 20px; }
table.list { width: 100%; border-collapse: collapse; font-size: 15px; }
table.list th, table.list td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
table.list th { font-size: 13px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }

@media (max-width: 900px) {
  .links { display: none; }
  .grid3, .plans, .steps, .foot .cols { grid-template-columns: 1fr 1fr; }
  .browser .page { grid-template-columns: 1fr; } .panel { border-left: 0; border-top: 1px solid var(--line); }
}
@media (max-width: 600px) {
  .grid3, .grid2, .plans, .steps, .foot .cols { grid-template-columns: 1fr; }
  .enterprise { flex-direction: column; align-items: flex-start; }
  .cards { grid-template-columns: 1fr 1fr; }
  .hero { padding-top: 40px; }
}