/* Achromic LLC — global styles (Apple-store-inspired theme) */
:root {
  --bg: #fbfbfd;
  --bg-alt: #f5f5f7;
  --dark: #1d1d1f;
  --text: #1d1d1f;
  --text-2: #6e6e73;
  --accent: #0071e3;
  --accent-hover: #0077ed;
  --card: #ffffff;
  --radius: 18px;
  --nav-h: 48px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- Navigation ---------- */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(251, 251, 253, 0.85);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(0,0,0,0.08);
}
.nav-inner {
  max-width: 1024px; margin: 0 auto; height: var(--nav-h);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 22px;
}
.nav-logo { display: flex; align-items: center; gap: 8px; font-weight: 600; font-size: 17px; color: var(--text); }
.nav-logo:hover { text-decoration: none; }
.nav-links { display: flex; gap: 28px; list-style: none; }
.nav-links a { color: rgba(29,29,31,0.8); font-size: 13px; transition: color .2s; }
.nav-links a:hover { color: var(--text); text-decoration: none; }
.nav-links a.active { color: var(--accent); }
.nav-toggle { display: none; background: none; border: 0; font-size: 22px; cursor: pointer; color: var(--text); }

/* ---------- Hero ---------- */
.hero { text-align: center; padding: 90px 22px 70px; }
.hero.dark { background: #000; color: #f5f5f7; }
.hero.dark .hero-sub { color: #a1a1a6; }
.hero h1 {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: clamp(40px, 6vw, 64px);
  font-weight: 700; letter-spacing: -0.015em; line-height: 1.07;
}
.hero-sub { font-size: clamp(19px, 2.5vw, 26px); color: var(--text-2); margin-top: 12px; font-weight: 400; }
.hero .cta-row { margin-top: 28px; display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ---------- Buttons & badges ---------- */
.btn {
  display: inline-block; padding: 11px 24px; border-radius: 980px;
  font-size: 16px; font-weight: 500; transition: background .2s;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); text-decoration: none; }
.btn-ghost { border: 1px solid var(--accent); color: var(--accent); }
.btn-ghost:hover { background: var(--accent); color: #fff; text-decoration: none; }
.badge {
  display: inline-block; font-size: 12px; font-weight: 600; letter-spacing: .04em;
  text-transform: uppercase; padding: 5px 12px; border-radius: 980px; margin-bottom: 16px;
}
.badge-green { background: #e3f5e8; color: #1d7a3a; }
.badge-orange { background: #fdeede; color: #b25000; }
.badge-blue { background: #e2f0fd; color: #0058ab; }
.badge-purple { background: #efe7fb; color: #6233a8; }

/* ---------- Sections ---------- */
.section { max-width: 1024px; margin: 0 auto; padding: 80px 22px; }
.section.alt { max-width: none; background: var(--bg-alt); }
.section.alt > .inner { max-width: 1024px; margin: 0 auto; padding: 0 22px; }
.section h2 {
  font-size: clamp(32px, 4.5vw, 48px); font-weight: 700;
  letter-spacing: -0.015em; text-align: center; margin-bottom: 14px;
}
.section .lead { text-align: center; color: var(--text-2); font-size: 19px; max-width: 720px; margin: 0 auto 48px; }

/* ---------- Cards ---------- */
.grid { display: grid; gap: 24px; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.card {
  background: var(--card); border-radius: var(--radius); padding: 36px 30px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06); text-align: center;
  transition: transform .25s, box-shadow .25s;
}
.card:hover { transform: translateY(-4px); box-shadow: 0 10px 28px rgba(0,0,0,0.10); }
.card .card-art { height: 150px; display: flex; align-items: center; justify-content: center; margin-bottom: 22px; }
.card h3 { font-size: 24px; font-weight: 700; letter-spacing: -0.01em; }
.card p { color: var(--text-2); font-size: 15px; margin: 10px 0 18px; }
.card .learn { font-size: 15px; }

/* ---------- Feature rows ---------- */
.feature-grid { display: grid; gap: 24px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); margin-top: 40px; }
.feature {
  background: var(--card); border-radius: var(--radius); padding: 30px 26px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}
.feature .f-icon { width: 44px; height: 44px; margin-bottom: 16px; }
.feature h4 { font-size: 18px; margin-bottom: 6px; }
.feature p { color: var(--text-2); font-size: 14px; }

/* ---------- Product hero art ---------- */
.product-art { max-width: 680px; margin: 48px auto 0; }

/* ---------- Split (mission) ---------- */
.split { display: grid; gap: 48px; grid-template-columns: 1fr 1fr; align-items: center; }
.split h2 { text-align: left; }
.split p { color: var(--text-2); font-size: 17px; margin-bottom: 14px; }
@media (max-width: 760px) { .split { grid-template-columns: 1fr; } .split h2 { text-align: center; } }

/* ---------- Timeline ---------- */
.timeline { max-width: 640px; margin: 40px auto 0; list-style: none; }
.timeline li { display: flex; gap: 18px; padding: 16px 0; border-bottom: 1px solid rgba(0,0,0,0.08); align-items: baseline; }
.timeline .t-date { flex: 0 0 110px; font-weight: 600; color: var(--accent); font-size: 15px; }
.timeline .t-body strong { display: block; font-size: 16px; }
.timeline .t-body span { color: var(--text-2); font-size: 14px; }

/* ---------- CTA band ---------- */
.cta-band { background: #000; color: #f5f5f7; text-align: center; padding: 72px 22px; }
.cta-band h2 { font-size: clamp(28px, 4vw, 40px); font-weight: 700; letter-spacing: -0.015em; }
.cta-band p { color: #a1a1a6; margin: 12px auto 26px; max-width: 560px; }

/* ---------- Forms ---------- */
.form-wrap { max-width: 560px; margin: 0 auto; }
.form-row { margin-bottom: 18px; }
.form-row label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 6px; }
.form-row input, .form-row select, .form-row textarea {
  width: 100%; padding: 12px 14px; font-size: 16px; font-family: inherit;
  border: 1px solid #d2d2d7; border-radius: 12px; background: #fff; color: var(--text);
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus {
  outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(0,113,227,0.18);
}
.form-note { font-size: 13px; color: var(--text-2); margin-top: 14px; text-align: center; }

/* ---------- Footer ---------- */
.footer { background: var(--bg-alt); border-top: 1px solid rgba(0,0,0,0.08); font-size: 12px; color: var(--text-2); }
.footer-inner { max-width: 1024px; margin: 0 auto; padding: 34px 22px 44px; }
.footer-cols { display: grid; gap: 28px; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); padding-bottom: 24px; border-bottom: 1px solid rgba(0,0,0,0.08); }
.footer h5 { font-size: 12px; color: var(--text); margin-bottom: 10px; }
.footer ul { list-style: none; }
.footer li { margin-bottom: 8px; }
.footer a { color: var(--text-2); }
.footer a:hover { color: var(--text); }
.footer-base { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; padding-top: 18px; }

/* ---------- Responsive nav ---------- */
@media (max-width: 720px) {
  .nav-toggle { display: block; }
  .nav-links {
    display: none; position: absolute; top: var(--nav-h); left: 0; right: 0;
    flex-direction: column; gap: 0; background: rgba(251,251,253,0.98);
    border-bottom: 1px solid rgba(0,0,0,0.08); padding: 8px 0;
  }
  .nav-links.open { display: flex; }
  .nav-links li { padding: 12px 24px; }
  .nav-links a { font-size: 16px; }
}