/* randd3.com: Align1099's colors (website/src/css/site.css), light and dark by the system's choice. */
:root {
  --font: "Segoe UI Variable Text", "Segoe UI", -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", system-ui, sans-serif;
  --font-display: "Segoe UI Variable Display", "Segoe UI", -apple-system, BlinkMacSystemFont, "SF Pro Display", system-ui, sans-serif;
  --bg: #ffffff;
  --band: #f6f7f9;
  --surface: #ffffff;
  --border: #e4e7ec;
  --text: #0f172a;
  --text-2: #475467;
  --text-3: #667085;
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --primary-text: #3730a3;
  --on-primary: #ffffff;
  --shadow: 0 1px 3px rgba(16, 24, 40, 0.08), 0 1px 2px rgba(16, 24, 40, 0.04);
  --r: 12px;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0d12;
    --band: #10131a;
    --surface: #151922;
    --border: #262c37;
    --text: #e8ebf2;
    --text-2: #a3acbd;
    --text-3: #8891a3;
    --primary: #8b87ff;
    --primary-hover: #a5a2ff;
    --primary-text: #c4c2ff;
    --on-primary: #0b0d12;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.45);
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 80px; }
body { margin: 0; background: var(--bg); color: var(--text); font: 17px/1.6 var(--font); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-underline-offset: 2px; }
a:hover { color: var(--primary-hover); }
h1, h2, h3 { font-family: var(--font-display); line-height: 1.2; letter-spacing: -0.01em; margin: 0 0 0.5em; text-wrap: balance; }
h1 { font-size: clamp(2rem, 4.5vw, 3.2rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); }
h3 { font-size: 1.2rem; }
p { margin: 0 0 1em; }
:focus-visible { outline: 3px solid color-mix(in srgb, var(--primary) 55%, transparent); outline-offset: 2px; border-radius: 6px; }

.wrap { width: 100%; max-width: 1040px; margin: 0 auto; padding: 0 16px; }
@media (min-width: 640px) { .wrap { padding: 0 24px; } }
.muted { color: var(--text-2); }
.eyebrow { font-size: 0.8rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--primary-text); margin-bottom: 0.75em; }
.lead { font-size: 1.2rem; color: var(--text-2); max-width: 44rem; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 12px; z-index: 10; background: var(--surface); padding: 8px 12px; border-radius: 8px; }

/* Header and footer */
.site-header { position: sticky; top: 0; z-index: 5; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: saturate(1.4) blur(10px); -webkit-backdrop-filter: saturate(1.4) blur(10px); border-bottom: 1px solid var(--border); }
.bar { display: flex; align-items: center; justify-content: space-between; gap: 12px; height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 700; font-size: 1.1rem; color: var(--text); text-decoration: none; white-space: nowrap; }
.brand:hover { color: var(--text); }
.nav { display: flex; align-items: center; gap: 4px; }
.nav a { color: var(--text-2); text-decoration: none; font-weight: 600; font-size: 0.95rem; padding: 8px 10px; border-radius: 8px; }
.nav a:hover { color: var(--text); background: var(--band); }
@media (max-width: 479px) { .nav .wide { display: none; } }
.site-footer { border-top: 1px solid var(--border); padding: 28px 0 36px; font-size: 0.9rem; color: var(--text-3); }
.foot { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 24px; }
.foot p { margin: 0; }
.foot-nav { display: flex; flex-wrap: wrap; gap: 16px; }
.foot-nav a { color: var(--text-2); text-decoration: none; }
.foot-nav a:hover { color: var(--text); text-decoration: underline; }

/* Sections */
.hero { padding: 72px 0 64px; }
.section { padding: 56px 0; }
.band { background: var(--band); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.split { display: grid; gap: 32px; }
@media (min-width: 820px) { .split { grid-template-columns: 1fr 1fr; gap: 48px; } }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 1.5em; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 20px; border-radius: 10px; border: 1px solid var(--primary); background: var(--primary); color: var(--on-primary); font-weight: 600; text-decoration: none; }
.btn:hover { background: var(--primary-hover); border-color: var(--primary-hover); color: var(--on-primary); }
.btn-ghost { background: transparent; color: var(--primary-text); border-color: var(--border); }
.btn-ghost:hover { background: var(--surface); color: var(--text); border-color: var(--text-3); }

.product, .card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--r); box-shadow: var(--shadow); padding: 24px; }
.product { max-width: 46rem; }
.product > :last-child, .card > :last-child { margin-bottom: 0; }
.product-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px; }
.product-head h3 { font-size: 1.5rem; margin: 0; }
.tag { margin: 0 0 0.75em; font-size: 0.85rem; font-weight: 600; color: var(--text-3); }
.points { margin: 0 0 1.25em; padding-left: 1.2em; }
.points li { margin-bottom: 0.5em; }
.facts { display: grid; grid-template-columns: max-content 1fr; gap: 8px 16px; margin: 0; }
.facts dt { color: var(--text-3); font-weight: 600; }
.facts dd { margin: 0; overflow-wrap: anywhere; }
.prose, .narrow { max-width: 46rem; }
.prose h2 { font-size: 1.3rem; margin-top: 1.5em; }
@media (max-width: 479px) {
  .facts { grid-template-columns: 1fr; gap: 0; }
  .facts dd { margin-bottom: 10px; }
}