:root {
  color-scheme: light;
  --ink: #172033;
  --muted: #5f6c80;
  --soft: #f7fbff;
  --surface: rgba(255, 255, 255, 0.86);
  --line: rgba(81, 97, 126, 0.16);
  --blue: #3467ff;
  --purple: #7a5cff;
  --teal: #12b9b2;
  --warm: #fff6e8;
  --shadow: 0 24px 70px rgba(44, 64, 110, 0.16);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(52, 103, 255, 0.13), transparent 32rem),
    radial-gradient(circle at 88% 8%, rgba(18, 185, 178, 0.14), transparent 26rem),
    linear-gradient(180deg, #fbfdff 0%, #f8fbff 42%, #fffaf2 100%);
  line-height: 1.6;
}

a { color: inherit; text-decoration: none; }
a:focus-visible, button:focus-visible, textarea:focus-visible { outline: 3px solid rgba(52, 103, 255, 0.45); outline-offset: 4px; }
.skip-link { position: absolute; left: -999px; top: 1rem; background: var(--ink); color: white; padding: .65rem 1rem; border-radius: .75rem; z-index: 10; }
.skip-link:focus { left: 1rem; }

.site-header { position: sticky; top: 0; z-index: 5; backdrop-filter: blur(20px); background: rgba(248, 251, 255, 0.78); border-bottom: 1px solid var(--line); }
.nav-shell, .section-shell { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }
.nav-shell { min-height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.brand { display: inline-flex; align-items: center; gap: .7rem; font-weight: 800; letter-spacing: -0.03em; }
.brand-mark { display: inline-grid; place-items: center; width: 2.45rem; height: 2.45rem; border-radius: 1rem; color: white; background: linear-gradient(135deg, var(--blue), var(--purple) 54%, var(--teal)); box-shadow: 0 10px 26px rgba(52, 103, 255, .24); }
.brand-text { font-size: 1.12rem; }
.nav-links { display: flex; align-items: center; gap: 1.35rem; color: var(--muted); font-weight: 650; font-size: .95rem; }
.nav-links a:hover { color: var(--ink); }
.nav-cta { color: white !important; background: var(--ink); padding: .7rem 1rem; border-radius: 999px; box-shadow: 0 14px 30px rgba(23, 32, 51, .14); }

.hero { min-height: calc(100vh - 76px); display: grid; grid-template-columns: minmax(0, 1fr) 420px; gap: clamp(2rem, 6vw, 5rem); align-items: center; padding: clamp(4rem, 9vw, 7rem) 0; }
.eyebrow { margin: 0 0 .9rem; color: var(--blue); font-weight: 800; text-transform: uppercase; letter-spacing: .13em; font-size: .78rem; }
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: clamp(3rem, 8vw, 6rem); line-height: .96; letter-spacing: -0.075em; margin-bottom: 1.35rem; max-width: 780px; }
h2 { font-size: clamp(2rem, 4vw, 3.35rem); line-height: 1.02; letter-spacing: -0.055em; margin-bottom: 1rem; }
h3 { font-size: 1.08rem; letter-spacing: -0.02em; margin-bottom: .45rem; }
.hero-subhead { color: #39475d; font-size: clamp(1.12rem, 2vw, 1.35rem); max-width: 680px; }
.supporting-line { color: var(--muted); max-width: 650px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .85rem; margin: 2rem 0 1.15rem; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 3.15rem; padding: .9rem 1.2rem; border-radius: 999px; font-weight: 800; transition: transform .2s ease, box-shadow .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: white; background: linear-gradient(135deg, var(--blue), var(--purple)); box-shadow: 0 18px 36px rgba(52, 103, 255, .24); }
.button-secondary { background: white; color: var(--ink); border: 1px solid var(--line); }

.phone-card, .demo-panel, .info-card, .step-card, .trust-grid article { background: var(--surface); border: 1px solid rgba(255,255,255,.8); box-shadow: var(--shadow); }
.phone-card { border-radius: 2.25rem; padding: 1rem; transform: rotate(2deg); }
.phone-topbar { height: 2rem; display: flex; gap: .35rem; padding: .4rem; }
.phone-topbar span { width: .48rem; height: .48rem; border-radius: 99px; background: #d5dfef; }
.message { border-radius: 1.35rem; padding: 1rem; margin: .85rem 0; }
.message strong { display: block; font-size: .8rem; color: var(--muted); margin-bottom: .35rem; }
.message p { margin: 0; }
.draft { background: #fff7ed; border: 1px solid #fed7aa; }
.rewrite { background: #eefaf9; border: 1px solid #a7f3d0; }
.suggestion-label { margin: 1rem .2rem .2rem; color: var(--teal); font-weight: 850; font-size: .78rem; letter-spacing: .1em; text-transform: uppercase; }
.phone-note { background: #f3f6ff; color: var(--muted); padding: .8rem 1rem; border-radius: 1rem; font-size: .9rem; }

.value-section, .preview-section { padding: clamp(4rem, 8vw, 6rem) 0; background: rgba(255,255,255,.46); border-block: 1px solid var(--line); }
.two-column { display: grid; grid-template-columns: .8fr 1fr; gap: clamp(2rem, 6vw, 5rem); align-items: start; }
.body-copy { color: var(--muted); font-size: 1.06rem; }
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-top: 2.2rem; }
.info-card { border-radius: 1.4rem; padding: 1.25rem; background: rgba(255,255,255,.78); }
.icon-pill { display: inline-flex; color: var(--blue); background: #eef3ff; border-radius: 999px; font-weight: 850; padding: .3rem .62rem; margin-bottom: 1rem; }
.info-card p, .step-card p, .trust-grid p { color: var(--muted); margin-bottom: 0; }
.section-block { padding: clamp(4rem, 8vw, 6rem) 0; }
.section-heading { max-width: 720px; margin-bottom: 2rem; }
.section-heading p { color: var(--muted); }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.step-card { border-radius: 1.4rem; padding: 1.35rem; }
.step-card span { display: inline-grid; place-items: center; width: 2.35rem; height: 2.35rem; border-radius: .95rem; background: linear-gradient(135deg, var(--teal), var(--blue)); color: white; font-weight: 900; margin-bottom: 1rem; }
.preview-layout { display: grid; grid-template-columns: .85fr 1.15fr; gap: clamp(2rem, 6vw, 4rem); align-items: center; }
.preview-copy p { color: var(--muted); }
.demo-panel { border-radius: 1.75rem; padding: 1.2rem; display: grid; gap: .7rem; background: linear-gradient(180deg, rgba(255,255,255,.92), rgba(247,251,255,.92)); }
.demo-panel label { font-weight: 800; color: #344158; }
.demo-panel textarea { width: 100%; min-height: 105px; resize: vertical; border: 1px solid var(--line); border-radius: 1rem; padding: 1rem; color: var(--ink); background: white; font: inherit; }
.demo-panel button { border: 0; border-radius: 999px; padding: .9rem 1rem; color: white; background: linear-gradient(135deg, var(--purple), var(--teal)); font: inherit; font-weight: 850; }
.demo-panel p { margin: 0; color: var(--muted); font-size: .92rem; }
.narrow { max-width: 780px; }
.trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.trust-grid article { border-radius: 1.25rem; padding: 1.15rem; background: rgba(255,255,255,.72); }
.site-footer { background: #121a2b; color: white; padding: 3rem 0 1.5rem; }
.footer-layout { display: grid; grid-template-columns: 1fr auto; gap: 2rem; align-items: start; }
.footer-layout p, .disclaimer { color: rgba(255,255,255,.72); }
.footer-layout nav { display: grid; gap: .6rem; color: rgba(255,255,255,.82); }
.footer-brand { margin-bottom: 1rem; }
.disclaimer { width: min(1120px, calc(100% - 32px)); margin: 2rem auto 0; border-top: 1px solid rgba(255,255,255,.12); padding-top: 1rem; font-size: .9rem; }

@media (max-width: 900px) {
  .nav-shell { align-items: flex-start; padding: 1rem 0; flex-direction: column; }
  .nav-links { width: 100%; overflow-x: auto; padding-bottom: .25rem; }
  .hero, .two-column, .preview-layout, .footer-layout { grid-template-columns: 1fr; }
  .hero { min-height: auto; }
  .phone-card { transform: none; max-width: 440px; margin: 0 auto; }
  .card-grid, .steps, .trust-grid { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .nav-links { gap: .85rem; font-size: .88rem; }
  .nav-cta { padding: .58rem .78rem; }
  h1 { font-size: clamp(2.6rem, 15vw, 4.2rem); }
  .hero-actions .button { width: 100%; }
  .section-shell, .nav-shell { width: min(100% - 24px, 1120px); }
}