/* labCRM landing: plain CSS, neutral shadcn-like palette, light and dark. */
:root {
  --bg: #fff; --fg: #0a0a0a; --muted: #f5f5f5; --muted-fg: #737373; --border: #e5e5e5;
  --primary: #171717; --primary-fg: #fafafa; --ring: #a3a3a3; --ok: #15803d; --err: #dc2626;
  --radius: 10px; color-scheme: light;
}
:root.dark {
  --bg: #0a0a0a; --fg: #fafafa; --muted: #171717; --muted-fg: #a1a1a1; --border: #ffffff1a;
  --primary: #fafafa; --primary-fg: #171717; --ring: #737373; --ok: #22c55e; --err: #f87171; color-scheme: dark;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.6 Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif; -webkit-font-smoothing: antialiased; }
a { color: inherit; }
h1, h2, h3 { line-height: 1.15; letter-spacing: -.02em; margin: 0; }
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); font-weight: 700; }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 650; }
h3 { font-size: 1.05rem; font-weight: 600; }
p { margin: 0; }
.container { width: min(1120px, 100% - 40px); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.site-header { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--bg) 86%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--border); }
.site-header__inner { display: flex; align-items: center; gap: 24px; height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 650; text-decoration: none; }
.brand__mark { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 8px; background: var(--primary); color: var(--primary-fg); font-weight: 700; }
.site-nav { display: flex; gap: 20px; margin-left: 12px; font-size: 14px; color: var(--muted-fg); }
.site-nav a { text-decoration: none; } .site-nav a:hover { color: var(--fg); }
.site-header__actions { display: flex; align-items: center; gap: 8px; margin-left: auto; }

.button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 36px; padding: 0 16px; border: 1px solid transparent; border-radius: 8px; background: var(--primary); color: var(--primary-fg); font: 500 14px/1 inherit; text-decoration: none; cursor: pointer; transition: opacity .15s, background-color .15s; }
.button:hover { opacity: .9; }
.button--outline { background: transparent; color: var(--fg); border-color: var(--border); }
.button--outline:hover { background: var(--muted); opacity: 1; }
.button--ghost { background: transparent; color: var(--fg); padding: 0 10px; }
.button--ghost:hover { background: var(--muted); opacity: 1; }
.button--lg { height: 44px; padding: 0 24px; font-size: 15px; border-radius: 10px; }
.button:focus-visible, .input:focus-visible { outline: none; box-shadow: 0 0 0 3px color-mix(in srgb, var(--ring) 50%, transparent); border-color: var(--ring); }

.hero { padding: 96px 0 72px; text-align: center; background: radial-gradient(60% 50% at 50% 0%, color-mix(in srgb, var(--primary) 8%, transparent), transparent); }
.hero__inner { display: grid; justify-items: center; gap: 22px; }
.eyebrow { display: inline-block; padding: 4px 12px; border: 1px solid var(--border); border-radius: 999px; font-size: 13px; color: var(--muted-fg); }
.lead { max-width: 640px; font-size: 1.15rem; color: var(--muted-fg); }
.hero__actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 8px; }

.section { padding: 80px 0; }
.section--muted { background: var(--muted); }
.section__lead { margin-top: 12px; color: var(--muted-fg); max-width: 620px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 16px; margin-top: 36px; }
.card { padding: 24px; border: 1px solid var(--border); border-radius: 14px; background: var(--bg); display: grid; gap: 8px; align-content: start; }
.card p { color: var(--muted-fg); font-size: 15px; }
.card__icon { display: inline-grid; place-items: center; width: 38px; height: 38px; border-radius: 10px; background: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted-fg); }

.steps { list-style: none; display: grid; gap: 20px; margin: 36px 0 0; padding: 0; counter-reset: s; }
.step { display: flex; align-items: flex-start; gap: 16px; }
.step__number { flex: none; display: grid; place-items: center; width: 36px; height: 36px; border-radius: 50%; background: var(--primary); color: var(--primary-fg); font-weight: 650; }
.step p { color: var(--muted-fg); }

.demo { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; padding: 40px; border: 1px solid var(--border); border-radius: 18px; }
.demo__form { display: grid; grid-template-columns: 1fr auto; gap: 8px; align-items: center; }
.demo__status { grid-column: 1 / -1; min-height: 24px; font-size: 14px; }
.input { width: 100%; height: 36px; padding: 0 12px; border: 1px solid var(--border); border-radius: 8px; background: transparent; color: var(--fg); font: inherit; font-size: 14px; }
.status--ok { color: var(--ok); } .status--error { color: var(--err); }

.site-footer { border-top: 1px solid var(--border); padding: 28px 0; font-size: 14px; color: var(--muted-fg); }
.site-footer__inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; }
.site-footer a:hover { color: var(--fg); }

@media (max-width: 760px) {
  .site-nav { display: none; }
  .demo { grid-template-columns: 1fr; padding: 24px; }
  .demo__form { grid-template-columns: 1fr; }
  .hero { padding: 64px 0 48px; }
}