/* Posty marketing site. System fonts, no external requests. */
:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --bg-alt: #f3f4f8;
  --fg: #111827;
  --muted: #4b5563;
  --border: #d1d5db;
  --accent: #4338ca;
  --btn: #4338ca;
  --btn-hover: #3730a3;
  --btn-fg: #ffffff;
  --focus: #1d4ed8;
  --radius: 12px;
  --max: 68rem;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1020;
    --bg-alt: #131a2e;
    --fg: #f3f4f6;
    --muted: #b4bccc;
    --border: #2d3752;
    --accent: #a5b4fc;
    --btn: #4f46e5;
    --btn-hover: #4338ca;
    --focus: #93c5fd;
  }
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--fg);
  background: var(--bg);
}
img, svg { max-width: 100%; height: auto; }
a { color: var(--accent); text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; border-radius: 4px; }
h1, h2, h3 { line-height: 1.2; margin: 0 0 .6rem; }
h1 { font-size: clamp(2rem, 6vw, 3.25rem); letter-spacing: -.02em; }
h2 { font-size: clamp(1.5rem, 4vw, 2.1rem); letter-spacing: -.01em; }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1rem; }
.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 1rem; }
.skip {
  position: absolute; left: .5rem; top: -4rem; z-index: 10;
  background: var(--btn); color: var(--btn-fg); padding: .6rem 1rem; border-radius: 8px; text-decoration: none;
}
.skip:focus { top: .5rem; }

/* Header */
.site-header { border-bottom: 1px solid var(--border); }
.site-header .wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .5rem 1rem; padding-top: .75rem; padding-bottom: .75rem; }
.logo { display: inline-flex; align-items: center; gap: .5rem; font-weight: 700; font-size: 1.25rem; color: var(--fg); text-decoration: none; }
.logo img { display: block; width: 28px; height: 28px; }
.nav { display: flex; flex-wrap: wrap; align-items: center; gap: .25rem .25rem; }
.nav a { color: var(--fg); text-decoration: none; padding: .5rem .65rem; border-radius: 8px; }
.nav a:hover { background: var(--bg-alt); }
.nav a[aria-current="page"] { font-weight: 700; }
.nav .btn { color: var(--btn-fg); }
.nav .btn:hover { background: var(--btn-hover); }

/* Buttons */
.btn {
  display: inline-block; background: var(--btn); color: var(--btn-fg); text-decoration: none;
  font-weight: 600; padding: .65rem 1.1rem; border-radius: 10px; border: 2px solid transparent;
}
.btn:hover { background: var(--btn-hover); }
.btn-secondary { background: transparent; color: var(--fg); border-color: var(--border); }
.btn-secondary:hover { background: var(--bg-alt); }
.cta-row { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1.5rem; }

/* Sections */
section { padding: 3.5rem 0; }
.alt { background: var(--bg-alt); }
.lead { font-size: 1.15rem; color: var(--muted); max-width: 40rem; }
.badge {
  display: inline-block; font-size: .85rem; font-weight: 600; padding: .2rem .7rem; border-radius: 999px;
  border: 1px solid var(--border); color: var(--muted); margin-bottom: 1rem;
}
.hero { padding-top: 3rem; }
.hero-grid { display: grid; gap: 2rem; align-items: center; }
.shot { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; background: var(--bg-alt); }
.shot img { display: block; width: 100%; }
.shot-note { font-size: .85rem; color: var(--muted); margin: .5rem 0 0; }

/* Works with */
.works { display: flex; flex-wrap: wrap; gap: .75rem; list-style: none; padding: 0; margin: 1rem 0 0; }
.works li { display: flex; align-items: center; gap: .6rem; padding: .6rem 1rem; border: 1px solid var(--border); border-radius: 999px; background: var(--bg); font-weight: 600; }
.works img { width: 24px; height: 24px; display: block; }
.fine { font-size: .9rem; color: var(--muted); }

/* Features */
.features { display: grid; gap: 1.25rem; margin-top: 2rem; }
.card { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.5rem; }
.card p:last-child { margin-bottom: 0; }
.card ul { margin: .5rem 0 0; padding-left: 1.2rem; color: var(--muted); }

/* Steps */
.steps { display: grid; gap: 1.25rem; list-style: none; padding: 0; margin: 2rem 0 0; counter-reset: step; }
.steps li { counter-increment: step; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.5rem; }
.steps li::before {
  content: counter(step); display: inline-flex; align-items: center; justify-content: center;
  width: 2rem; height: 2rem; margin-bottom: .75rem; border-radius: 50%;
  background: var(--btn); color: var(--btn-fg); font-weight: 700;
}
.steps p { margin: 0; color: var(--muted); }

/* FAQ */
.faq { max-width: 46rem; margin-top: 1.5rem; }
.faq details { border-bottom: 1px solid var(--border); }
.faq summary { cursor: pointer; font-weight: 600; padding: 1rem 2rem 1rem 0; position: relative; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: .5rem; top: .8rem; font-size: 1.4rem; line-height: 1.2; color: var(--accent); }
.faq details[open] summary::after { content: "\2212"; }
.faq details p { color: var(--muted); padding-right: 1rem; }

/* Call to action band */
.cta-band { text-align: center; }
.cta-band .cta-row { justify-content: center; }

/* Footer */
.site-footer { border-top: 1px solid var(--border); padding: 2rem 0; font-size: .95rem; color: var(--muted); }
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; }
.site-footer ul { list-style: none; display: flex; flex-wrap: wrap; gap: .25rem 1rem; padding: 0; margin: 0; }
.site-footer p { margin: 0; }

/* Legal / prose pages */
.prose { max-width: 46rem; padding: 2.5rem 0 4rem; }
.prose h1 { font-size: clamp(1.9rem, 5vw, 2.6rem); }
.prose h2 { font-size: 1.4rem; margin-top: 2.25rem; scroll-margin-top: 1rem; }
.prose h3 { margin-top: 1.5rem; }
.prose ul, .prose ol { padding-left: 1.4rem; margin: 0 0 1rem; }
.prose li { margin-bottom: .35rem; }
.prose .meta { color: var(--muted); }
.prose .toc { background: var(--bg-alt); border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem 1.25rem; margin: 1.5rem 0; }
.prose .toc ol { margin: 0; columns: 1; }
.table-wrap { overflow-x: auto; margin: 0 0 1rem; }
table { border-collapse: collapse; width: 100%; font-size: .95rem; min-width: 32rem; }
th, td { text-align: left; vertical-align: top; padding: .55rem .7rem; border: 1px solid var(--border); }
th { background: var(--bg-alt); }
.pricing-card { max-width: 30rem; }
.price { font-size: 2.5rem; font-weight: 700; margin: .25rem 0 .5rem; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .92em; background: var(--bg-alt); padding: .1rem .35rem; border-radius: 4px; overflow-wrap: anywhere; }

@media (min-width: 48rem) {
  .hero-grid { grid-template-columns: 1fr 1.1fr; }
  .features, .steps { grid-template-columns: repeat(3, 1fr); }
  .prose .toc ol { columns: 2; }
}
@media (max-width: 30rem) {
  section { padding: 2.5rem 0; }
  .nav a { padding: .5rem .5rem; }
}
.prose .card h2 { margin-top: 0; }