/* Shared styles for the Datum pages at cad.inversesquare.app (product, pricing, thanks). Laid out like PDFwand's
   pricing pages; colours from Datum's own accent blue. */
:root {
  --ink: #12202c; --ink-2: #4b5b69; --ink-3: #7a8894; --line: #dfe5ea; --bg: #f6f8fa; --card: #ffffff;
  --brand: #0e6ba8; --brand-deep: #0a2a40; --brand-soft: #e3f0f9; --ok: #1f7a4d; --sale: #d0342c; --sale-soft: #fdecea;
  --hero: radial-gradient(ellipse at 50% 0%, #136fae 0%, #0c3b5c 58%, #071c2c 100%); --hero-ink: #eaf4fb; --hero-ink-2: #b9d5ea;
}
@media (prefers-color-scheme: dark) {
  :root { --ink: #e7eef4; --ink-2: #a6b6c3; --ink-3: #7f8f9c; --line: #24394a; --bg: #0b1620; --card: #102230; --brand: #4aa3e0; --brand-soft: #12324a; --ok: #6fd3a0; --sale: #ff7b72; --sale-soft: #3a1c1a; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.55 system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif; }
a { color: var(--brand); }
img { max-width: 100%; display: block; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 16px; }
h1, h2, h3 { text-wrap: balance; }

/* header */
.top { background: var(--hero); color: var(--hero-ink); }
.nav { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-block: 14px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; color: inherit; text-decoration: none; font: 650 21px/1 system-ui, sans-serif; letter-spacing: .01em; }
.brand img { width: 32px; height: 32px; border-radius: 8px; }
.nav nav { display: flex; gap: 18px; font-size: 15px; align-items: center; flex-wrap: wrap; }
.nav nav a { color: var(--hero-ink-2); text-decoration: none; }
.nav nav a:hover, .nav nav a[aria-current] { color: #fff; }
.nav nav a.pill { background: #fff; color: var(--brand-deep); padding: 7px 14px; border-radius: 999px; font-weight: 600; }
.hero { text-align: center; padding-block: 36px 56px; }
.hero h1 { font: 700 clamp(30px, 5vw, 48px)/1.12 system-ui, sans-serif; letter-spacing: -.015em; margin: 0 0 12px; }
.hero p { margin: 0 auto; max-width: 620px; color: var(--hero-ink-2); font-size: 18px; }
.offer { display: inline-block; margin: 0 0 18px; padding: 6px 14px; border-radius: 999px; background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.25); font-size: 14px; color: #fff; }
.offer b { color: #ffd27a; }
.offer[hidden] { display: none; }

/* buttons */
.btn { display: inline-block; text-align: center; padding: 13px 20px; border-radius: 10px; font-weight: 600; text-decoration: none; border: 0; font-size: 16px; cursor: pointer; }
.btn.block { display: block; }
.btn.primary { background: var(--brand-deep); color: #fff; }
.btn.primary:hover { background: var(--brand); }
.btn.light { background: #fff; color: var(--brand-deep); }
.btn.outline { border: 1px solid rgba(255,255,255,.45); color: #fff; }
.btn.ghost { border: 1px solid var(--line); color: var(--ink); background: transparent; }
.btn[aria-disabled="true"] { opacity: .55; pointer-events: none; }
@media (prefers-color-scheme: dark) { .btn.primary { background: var(--brand); color: #06131d; } .btn.primary:hover { background: #7cc0ee; } }
.cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 24px; }
.platforms { margin-top: 14px; font-size: 14px; color: var(--hero-ink-2); }

/* product page */
.shot { margin: -28px auto 0; max-width: 1080px; border-radius: 12px; overflow: hidden; border: 1px solid var(--line); box-shadow: 0 18px 50px rgba(7, 28, 44, .25); background: var(--card); }
section.band { padding: 56px 0 8px; }
.eyebrow { font: 600 12px/1 ui-monospace, Menlo, Consolas, monospace; letter-spacing: .12em; text-transform: uppercase; color: var(--brand); margin: 0 0 10px; }
.band h2 { font-size: clamp(24px, 3.4vw, 34px); line-height: 1.18; margin: 0 0 10px; letter-spacing: -.01em; }
.band .intro { color: var(--ink-2); max-width: 680px; margin: 0 0 26px; font-size: 17px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 20px; }
.card h3 { margin: 0 0 6px; font-size: 18px; }
.card p { margin: 0; color: var(--ink-2); font-size: 15px; }
.card ul { margin: 10px 0 0; padding-left: 18px; color: var(--ink-2); font-size: 14.5px; }
.card .ico { width: 36px; height: 36px; border-radius: 9px; background: var(--brand-soft); color: var(--brand); display: grid; place-items: center; margin-bottom: 12px; }
.card .ico svg { width: 20px; height: 20px; }
.split { display: grid; grid-template-columns: 1fr 1.25fr; gap: 32px; align-items: center; }
.split.flip { grid-template-columns: 1.25fr 1fr; }
.split.flip > :first-child { order: 2; }
.split figure { margin: 0; border-radius: 12px; overflow: hidden; border: 1px solid var(--line); box-shadow: 0 10px 30px rgba(7, 28, 44, .12); }
.ticks { list-style: none; padding: 0; margin: 14px 0 0; }
.ticks li { padding: 5px 0 5px 26px; position: relative; color: var(--ink-2); }
.ticks li::before { content: '✓'; position: absolute; left: 0; color: var(--ok); font-weight: 700; }
.ticks li b { color: var(--ink); }
@media (max-width: 800px) { .split, .split.flip { grid-template-columns: 1fr; } .split.flip > :first-child { order: 0; } }
.badge { display: inline-block; font: 700 11px/1 system-ui, sans-serif; letter-spacing: .06em; padding: 4px 7px; border-radius: 5px; vertical-align: middle; margin-left: 6px; }
.badge.pro { background: #6d4aff; color: #fff; }
.badge.soon { background: var(--brand-soft); color: var(--brand); }
.badge.out { background: #dff3e8; color: #1f7a4d; }
@media (prefers-color-scheme: dark) { .badge.out { background: #143a29; color: #6fd3a0; } }

/* compare table */
.compare { width: 100%; border-collapse: collapse; background: var(--card); border: 1px solid var(--line); border-radius: 14px; overflow: hidden; font-size: 15px; }
.compare th, .compare td { padding: 11px 14px; border-top: 1px solid var(--line); text-align: left; vertical-align: top; }
.compare thead th { border-top: 0; background: var(--brand-soft); font-size: 14px; }
.compare td.y, .compare td.n, .compare th.c { text-align: center; width: 110px; }
.compare td.y::before { content: '✓'; color: var(--ok); font-weight: 700; }
.compare td.n::before { content: '–'; color: var(--ink-3); }
.compare tr.group th { background: var(--bg); font-size: 13px; text-transform: uppercase; letter-spacing: .06em; color: var(--ink-2); }
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; border-radius: 14px; }

.closing { text-align: center; background: var(--hero); color: var(--hero-ink); border-radius: 18px; padding: 40px 20px; margin: 56px 0; }
.closing h2 { margin: 0 0 8px; font-size: clamp(24px, 3.4vw, 32px); }
.closing p { margin: 0 auto; max-width: 560px; color: var(--hero-ink-2); }

/* pricing (as PDFwand) */
.plans { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; margin: 32px 0; }
.plan { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 24px; display: flex; flex-direction: column; }
.plan.pro { border: 2px solid var(--brand); box-shadow: 0 10px 30px rgba(7, 28, 44, .12); }
.plan h2 { margin: 0; font-size: 22px; }
.plan .tag { color: var(--ink-2); margin: 4px 0 16px; }
.price { display: flex; align-items: baseline; gap: 10px; margin-bottom: 4px; flex-wrap: wrap; }
.price .now { font: 700 40px/1 system-ui, sans-serif; }
.price .per { color: var(--ink-2); font-size: 14px; }
.price .launch-note { display: none; color: var(--sale); font-size: 15px; line-height: 1.35; }
.launch .has-launch .price .now { text-decoration: line-through; text-decoration-color: var(--sale); text-decoration-thickness: 3px; }
.launch .has-launch .price .launch-note { display: block; flex-basis: 100%; }
.price-note { color: var(--ink-2); font-size: 14px; margin: 0 0 18px; }
.plan ul { list-style: none; padding: 0; margin: 0 0 22px; flex: 1; }
.plan li { padding: 6px 0 6px 26px; position: relative; border-top: 1px solid var(--line); }
.plan li:first-child { border-top: 0; }
.plan li::before { content: '✓'; position: absolute; left: 0; color: var(--ok); font-weight: 700; }
.plan li.lead { font-weight: 600; }
.plan li.lead::before { content: ''; }
.plat-pick { display: flex; gap: 6px; flex-wrap: wrap; margin: 0 0 12px; }
.plat-pick button { border: 1px solid var(--line); background: var(--card); color: var(--ink); border-radius: 999px; padding: 6px 13px; font: inherit; font-size: 14px; cursor: pointer; }
.plat-pick button[aria-pressed="true"] { background: var(--brand-deep); border-color: var(--brand-deep); color: #fff; }
@media (prefers-color-scheme: dark) { .plat-pick button[aria-pressed="true"] { background: var(--brand); border-color: var(--brand); color: #06131d; } }
.plugins { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 16px; margin: 8px 0 32px; }
.plugin { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 18px; display: flex; flex-direction: column; gap: 8px; }
.plugin h3 { margin: 0; font-size: 17px; }
.plugin p { margin: 0; color: var(--ink-2); font-size: 14.5px; flex: 1; }
.plugin .price .now { font-size: 28px; }
.plugin .was { color: var(--ink-3); text-decoration: line-through; font-size: 16px; }
.small { font-size: 14px; color: var(--ink-2); }
.note { border: 1px solid var(--line); border-left: 4px solid var(--brand); background: var(--card); border-radius: 10px; padding: 12px 16px; margin: 24px 0 0; font-size: 15px; }

.faq { margin: 40px 0 56px; }
.faq h2 { font-size: 24px; margin: 0 0 12px; }
.faq details { border-top: 1px solid var(--line); padding: 12px 0; }
.faq summary { cursor: pointer; font-weight: 600; }
.faq details p { margin: 8px 0 0; color: var(--ink-2); }

.steps { counter-reset: s; list-style: none; padding: 0; margin: 28px 0; display: grid; gap: 14px; }
.steps li { counter-increment: s; background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 16px 16px 16px 60px; position: relative; }
.steps li::before { content: counter(s); position: absolute; left: 16px; top: 14px; width: 30px; height: 30px; border-radius: 50%; background: var(--brand); color: #fff; font-weight: 700; display: grid; place-items: center; }
.steps h3 { margin: 0 0 4px; font-size: 18px; }
.steps p { margin: 0; color: var(--ink-2); }
kbd { font: 14px ui-monospace, Menlo, Consolas, monospace; background: var(--card); border: 1px solid var(--line); border-radius: 5px; padding: 1px 6px; }
.ref { font: 13px ui-monospace, Menlo, Consolas, monospace; color: var(--ink-2); word-break: break-all; }

footer { border-top: 1px solid var(--line); padding: 20px 0 32px; color: var(--ink-2); font-size: 14px; }
footer .wrap { display: flex; gap: 16px; flex-wrap: wrap; justify-content: space-between; }
footer a { color: inherit; }
@media (max-width: 480px) { .nav nav { gap: 12px; font-size: 14px; } .brand { font-size: 19px; } .hero p { font-size: 16px; } }
.edu-link { display: block; text-align: center; margin: 10px 0 0; font-size: 14px; color: var(--brand); text-decoration: none; }
.edu-link:hover { text-decoration: underline; }
.edu-link[hidden], .code-on[hidden] { display: none; }
.code-on { margin: 8px 0 0; text-align: center; color: var(--sale); }