/* cHRISy marketing site — single hand-written design system.
   No external CSS or web fonts (system stack, self-contained for speed). */

:root {
  --brand:        #4f46e5;   /* indigo */
  --brand-dark:   #4338ca;
  --brand-tint:   #eef2ff;
  --ink:          #0f172a;   /* slate-900 */
  --body:         #334155;   /* slate-700 */
  --muted:        #64748b;   /* slate-500 */
  --line:         #e2e8f0;   /* slate-200 */
  --bg:           #ffffff;
  --bg-soft:      #f8fafc;   /* slate-50 */
  --ok:           #16a34a;
  --radius:       14px;
  --shadow:       0 1px 2px rgba(15,23,42,.04), 0 8px 24px rgba(15,23,42,.06);
  --maxw:         1120px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial,
          "Apple Color Emoji", "Segoe UI Emoji", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--body);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { color: var(--ink); line-height: 1.15; margin: 0 0 .5em; letter-spacing: -.02em; }
h1 { font-size: clamp(2rem, 5vw, 3.25rem); font-weight: 800; }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.25rem); font-weight: 750; }
h3 { font-size: 1.2rem; font-weight: 700; }
p  { margin: 0 0 1rem; }
a  { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.section   { padding: 72px 0; }
.section--soft { background: var(--bg-soft); border-block: 1px solid var(--line); }
.center    { text-align: center; }
.lead      { font-size: 1.15rem; color: var(--muted); max-width: 44ch; }
.center .lead { margin-inline: auto; }
.eyebrow   { text-transform: uppercase; letter-spacing: .08em; font-size: .8rem;
             font-weight: 700; color: var(--brand); margin: 0 0 .75rem; }

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  display: inline-block; font-weight: 650; font-size: 1rem; cursor: pointer;
  padding: .7rem 1.4rem; border-radius: 10px; border: 1px solid transparent;
  transition: transform .06s ease, background .15s ease, box-shadow .15s ease;
  text-decoration: none;
}
.btn:hover { text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--brand); color: #fff; box-shadow: var(--shadow); }
.btn--primary:hover { background: var(--brand-dark); color: #fff; }
.btn--ghost { background: #fff; color: var(--ink); border-color: var(--line); }
.btn--ghost:hover { border-color: var(--brand); color: var(--brand); }
.btn--block { display: block; width: 100%; text-align: center; }

/* ── Header / nav ────────────────────────────────────────── */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.85); backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; gap: 24px; height: 66px; }
.brand { font-weight: 800; font-size: 1.3rem; color: var(--ink); letter-spacing: -.03em; }
.brand:hover { text-decoration: none; }
.brand b { color: var(--brand); }
.nav-links { display: flex; align-items: center; gap: 24px; margin-left: auto; }
.nav-links a { color: var(--body); font-weight: 550; }
.nav-links a:hover { color: var(--ink); text-decoration: none; }
.nav-toggle {
  display: none; margin-left: auto; background: none; border: 0; cursor: pointer;
  font-size: 1.5rem; color: var(--ink); line-height: 1; padding: 6px;
}

/* ── Hero ────────────────────────────────────────────────── */
.hero { padding: 84px 0 72px; text-align: center;
  background: radial-gradient(1200px 400px at 50% -10%, var(--brand-tint), transparent); }
.hero .lead { font-size: 1.25rem; max-width: 52ch; margin: 1rem auto 2rem; }
.hero-cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.hero-note { margin-top: 1rem; font-size: .9rem; color: var(--muted); }

/* ── Feature grid ────────────────────────────────────────── */
.grid { display: grid; gap: 24px; }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px; box-shadow: var(--shadow);
}
.card .ico { font-size: 1.8rem; display: block; margin-bottom: .6rem; }
.card h3 { margin-bottom: .35rem; }
.card p { color: var(--muted); margin: 0; font-size: .97rem; }

/* ── Pricing ─────────────────────────────────────────────── */
.pricing { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; align-items: start; }
.price-card { position: relative; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 32px 28px; box-shadow: var(--shadow); }
.price-card--featured { border-color: var(--brand); box-shadow: 0 12px 36px rgba(79,70,229,.18); }
.badge-popular { position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  background: var(--brand); color: #fff; font-size: .72rem; font-weight: 700;
  letter-spacing: .06em; text-transform: uppercase; padding: 4px 12px; border-radius: 999px; }
.price-card h3 { font-size: 1.15rem; }
.price { font-size: 2.6rem; font-weight: 800; color: var(--ink); letter-spacing: -.03em; }
.price small { font-size: .95rem; font-weight: 600; color: var(--muted); }
.vat { font-size: .82rem; color: var(--muted); margin: .2rem 0 1.2rem; }
.feat-list { list-style: none; padding: 0; margin: 0 0 1.5rem; }
.feat-list li { padding: .35rem 0 .35rem 1.6rem; position: relative; color: var(--body); font-size: .95rem; }
.feat-list li::before { content: "✓"; position: absolute; left: 0; color: var(--ok); font-weight: 800; }

/* ── Trust / badges ──────────────────────────────────────── */
.trust { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.pill { display: inline-flex; align-items: center; gap: 8px; background: #fff;
  border: 1px solid var(--line); border-radius: 999px; padding: 8px 16px;
  font-size: .9rem; font-weight: 600; color: var(--body); }

/* ── Prose (privacy / imprint) ───────────────────────────── */
.prose { max-width: 72ch; }
.prose h2 { margin-top: 2rem; }
.prose h3 { margin-top: 1.5rem; }
.prose ul { padding-left: 1.2rem; }
.prose li { margin-bottom: .4rem; }
.prose .muted-note { color: var(--muted); font-size: .9rem; }
.callout { background: var(--brand-tint); border: 1px solid #c7d2fe;
  border-radius: 10px; padding: 14px 16px; font-size: .92rem; color: var(--ink); }

/* ── CTA band ────────────────────────────────────────────── */
.cta-band { background: var(--ink); color: #cbd5e1; border-radius: 20px;
  padding: 48px 40px; text-align: center; }
.cta-band h2 { color: #fff; }
.cta-band .lead { color: #94a3b8; }

/* ── Footer ──────────────────────────────────────────────── */
.site-footer { border-top: 1px solid var(--line); background: var(--bg-soft);
  padding: 48px 0; margin-top: 8px; }
.footer-grid { display: flex; flex-wrap: wrap; gap: 32px; justify-content: space-between; }
.footer-brand { max-width: 34ch; }
.footer-brand p { color: var(--muted); font-size: .92rem; }
.footer-col h4 { font-size: .82rem; text-transform: uppercase; letter-spacing: .06em;
  color: var(--muted); margin: 0 0 .8rem; }
.footer-col a { display: block; color: var(--body); margin-bottom: .5rem; font-size: .95rem; }
.footer-bottom { margin-top: 32px; padding-top: 20px; border-top: 1px solid var(--line);
  color: var(--muted); font-size: .87rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 860px) {
  .grid--3, .pricing { grid-template-columns: 1fr; }
  .nav-links { position: absolute; top: 66px; left: 0; right: 0; flex-direction: column;
    align-items: stretch; gap: 0; background: #fff; border-bottom: 1px solid var(--line);
    padding: 8px 24px 16px; display: none; box-shadow: var(--shadow); }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 0; border-bottom: 1px solid var(--line); }
  .nav-links .btn { margin-top: 10px; text-align: center; }
  .nav-toggle { display: block; }
}