:root {
  --bg: #ffffff;
  --bg-alt: #f6f7fb;
  --text: #1a1d29;
  --muted: #5b6275;
  --primary: #4f46e5;
  --primary-dark: #3f37c9;
  --border: #e4e6ef;
  --radius: 12px;
  --shadow: 0 6px 24px rgba(26, 29, 41, 0.06);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Inter, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
:focus-visible { outline: 3px solid var(--primary); outline-offset: 2px; }

.container { width: min(1100px, 92%); margin: 0 auto; }
.narrow { width: min(760px, 92%); }

.skip-link { position: absolute; left: -999px; top: 8px; background: var(--text); color: #fff; padding: 8px 12px; z-index: 100; }
.skip-link:focus { left: 8px; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s, box-shadow .2s;
}
.site-header.scrolled { border-color: var(--border); box-shadow: var(--shadow); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.15rem; color: var(--text); }
.logo:hover { text-decoration: none; }
.logo-mark {
  display: grid; place-items: center; width: 32px; height: 32px; border-radius: 8px;
  background: var(--primary); color: #fff; font-size: .95rem;
}
.nav-menu { display: flex; align-items: center; gap: 28px; }
.nav-menu a:not(.btn) { color: var(--muted); font-weight: 500; }
.nav-menu a:not(.btn):hover, .nav-menu a.active { color: var(--text); text-decoration: none; }
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--text); margin: 5px 0; transition: transform .2s, opacity .2s; }

/* Buttons */
.btn {
  display: inline-block; background: var(--primary); color: #fff; border: 0;
  padding: 12px 22px; border-radius: 999px; font-weight: 600; font-size: 1rem;
  cursor: pointer; transition: background .2s, transform .1s;
}
.btn:hover { background: var(--primary-dark); text-decoration: none; }
.btn:active { transform: scale(.98); }
.btn-sm { padding: 8px 16px; font-size: .9rem; }
.btn-ghost { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-ghost:hover { background: var(--bg-alt); }

/* Hero */
.hero { padding: 110px 0 90px; background: radial-gradient(circle at 80% 0%, #eef0ff 0, transparent 55%); }
.hero-inner { max-width: 780px; }
.eyebrow { color: var(--primary); font-weight: 600; text-transform: uppercase; letter-spacing: .08em; font-size: .85rem; margin-bottom: 16px; }
h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); line-height: 1.15; margin-bottom: 20px; }
.rotator { color: var(--primary); display: inline-block; transition: opacity .3s, transform .3s; }
.rotator.out { opacity: 0; transform: translateY(8px); }
.lead { font-size: 1.15rem; color: var(--muted); margin-bottom: 32px; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; }

/* Sections */
.section { padding: 90px 0; }
.section-alt { background: var(--bg-alt); }
h2 { font-size: 2rem; margin-bottom: 8px; }
.section-sub { color: var(--muted); margin-bottom: 40px; }

.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px; box-shadow: var(--shadow); transition: transform .2s, box-shadow .2s;
}
.card:hover { transform: translateY(-3px); box-shadow: 0 10px 30px rgba(26, 29, 41, .09); }
.card h3 { margin-bottom: 8px; font-size: 1.15rem; }
.card p { color: var(--muted); }
.card-icon {
  width: 44px; height: 44px; display: grid; place-items: center; border-radius: 10px;
  background: #eef0ff; color: var(--primary); font-size: 1.3rem; margin-bottom: 16px;
}

/* Steps */
.steps { list-style: none; display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 32px; }
.steps li { border-top: 2px solid var(--primary); padding-top: 16px; }
.steps span { color: var(--primary); font-weight: 700; }
.steps h3 { margin: 6px 0; font-size: 1.05rem; }
.steps p { color: var(--muted); font-size: .95rem; }

/* Pricing */
.billing-toggle { display: inline-flex; background: var(--bg-alt); border: 1px solid var(--border); border-radius: 999px; padding: 4px; margin-bottom: 32px; }
.billing-toggle button { border: 0; background: none; padding: 8px 18px; border-radius: 999px; font-weight: 600; color: var(--muted); cursor: pointer; font-size: .95rem; }
.billing-toggle button.active { background: #fff; color: var(--text); box-shadow: var(--shadow); }
.price { font-size: 1.8rem; font-weight: 700; color: var(--text) !important; margin: 8px 0 16px; transition: opacity .2s; }
.price-card ul { list-style: none; }
.price-card li { padding: 6px 0 6px 24px; position: relative; color: var(--muted); }
.price-card li::before { content: "✓"; position: absolute; left: 0; color: var(--primary); font-weight: 700; }
.price-card.featured { border: 2px solid var(--primary); }

/* FAQ */
.faq details { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 12px; padding: 0 20px; }
.faq summary { cursor: pointer; padding: 18px 0; font-weight: 600; list-style: none; display: flex; justify-content: space-between; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--primary); font-size: 1.3rem; line-height: 1; transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { color: var(--muted); padding-bottom: 18px; }

/* Contact */
.contact { display: grid; grid-template-columns: 1fr 1.2fr; gap: 48px; align-items: start; }
address { font-style: normal; color: var(--muted); line-height: 1.8; }
address strong { color: var(--text); }
form label { display: block; font-weight: 600; font-size: .9rem; margin-bottom: 16px; }
form input, form select, form textarea {
  display: block; width: 100%; margin-top: 6px; padding: 11px 14px; font: inherit;
  border: 1px solid var(--border); border-radius: 8px; background: #fff;
}
form input:focus, form select:focus, form textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px #e0e3ff; }
form .invalid { border-color: #d93025; }
.form-status { margin-top: 12px; font-size: .95rem; min-height: 1.4em; }
.form-status.ok { color: #188038; }
.form-status.err { color: #d93025; }

/* Footer */
.site-footer { border-top: 1px solid var(--border); padding: 28px 0; color: var(--muted); font-size: .9rem; }
.footer-inner { display: flex; justify-content: space-between; }

/* Scroll reveal */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .5s ease, transform .5s ease; }
.reveal.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* Responsive */
@media (max-width: 860px) {
  .grid-3, .contact { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .nav-toggle { display: block; }
  .nav-menu {
    position: absolute; top: 64px; left: 0; right: 0; flex-direction: column; gap: 0;
    background: #fff; border-bottom: 1px solid var(--border); padding: 8px 4%;
    display: none;
  }
  .nav-menu.open { display: flex; }
  .nav-menu a { width: 100%; padding: 12px 0; }
  .nav-menu .btn { text-align: center; margin: 8px 0; }
  .nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}
@media (max-width: 520px) {
  .steps { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; gap: 8px; }
}