:root {
  color-scheme: dark;
  --bg: #071016;
  --panel: #0d1d28;
  --panel-2: #102737;
  --text: #edf7ff;
  --muted: #9fb4c4;
  --line: rgba(255, 255, 255, 0.12);
  --green: #63f4a3;
  --cyan: #71d7ff;
  --yellow: #ffd76a;
  --shadow: 0 22px 70px rgba(0, 0, 0, 0.36);
  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;
  background:
    radial-gradient(circle at 15% -10%, rgba(113, 215, 255, 0.28), transparent 34rem),
    radial-gradient(circle at 80% 0%, rgba(99, 244, 163, 0.17), transparent 32rem),
    var(--bg);
  color: var(--text);
}

a { color: inherit; }
nav, main, footer, .hero-grid { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }
nav { display: flex; align-items: center; justify-content: space-between; padding: 22px 0; }
.brand-mark { font-weight: 850; letter-spacing: -0.03em; }
.nav-cta { color: var(--green); text-decoration: none; font-weight: 700; }
.hero { padding-bottom: 58px; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.25fr) 0.75fr; gap: 34px; align-items: center; padding: 44px 0 20px; }
.eyebrow { color: var(--green); font-size: 0.78rem; letter-spacing: 0.14em; text-transform: uppercase; font-weight: 850; margin: 0 0 12px; }
h1, h2, h3, h4 { margin: 0; letter-spacing: -0.045em; line-height: 0.96; }
h1 { font-size: clamp(3rem, 8vw, 6.4rem); max-width: 950px; }
h2 { font-size: clamp(2rem, 4.8vw, 4.2rem); }
h3 { font-size: clamp(1.45rem, 3vw, 2.1rem); }
h4 { font-size: 1.05rem; }
.subhead, .section-heading p, .offer-grid p, .cta-panel p, .score-card p, .result-summary p { color: var(--muted); font-size: 1.08rem; line-height: 1.65; }
.subhead { max-width: 720px; }
.hero-actions, .form-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.button { border: 1px solid var(--line); border-radius: 999px; padding: 13px 18px; font-weight: 850; text-decoration: none; cursor: pointer; display: inline-flex; align-items: center; justify-content: center; min-height: 46px; }
.button.primary { background: linear-gradient(135deg, var(--green), var(--cyan)); color: #051015; border: 0; }
.button.secondary { background: rgba(255,255,255,0.06); color: var(--text); }
.score-card, .panel, .price-card, .dimension, .sprint-box, .prompts { background: linear-gradient(180deg, rgba(255,255,255,0.07), rgba(255,255,255,0.035)); border: 1px solid var(--line); border-radius: 28px; box-shadow: var(--shadow); }
.score-card { padding: 28px; }
.score-label { color: var(--muted); font-weight: 800; }
.score-number { font-size: 5.5rem; line-height: 1; letter-spacing: -0.08em; font-weight: 950; color: var(--yellow); }
.score-number span { font-size: 1.6rem; color: var(--muted); letter-spacing: -0.03em; }
ul { padding-left: 20px; color: var(--muted); line-height: 1.8; }
main { display: grid; gap: 26px; }
.panel { padding: clamp(22px, 4vw, 42px); }
.section-heading { max-width: 760px; margin-bottom: 26px; }
.audit-form { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.audit-form label { display: grid; gap: 8px; color: var(--muted); font-weight: 750; }
.full { grid-column: 1 / -1; }
input, textarea { width: 100%; border: 1px solid var(--line); border-radius: 16px; background: rgba(0,0,0,0.24); color: var(--text); padding: 13px 14px; font: inherit; outline: none; }
textarea { resize: vertical; line-height: 1.55; }
input:focus, textarea:focus { border-color: var(--cyan); box-shadow: 0 0 0 4px rgba(113, 215, 255, 0.12); }
.results { margin-top: 28px; display: grid; gap: 18px; }
.result-summary { display: flex; gap: 18px; justify-content: space-between; align-items: center; border-top: 1px solid var(--line); padding-top: 24px; }
.result-summary h3 span { color: var(--yellow); }
.dimensions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.dimension { padding: 18px; box-shadow: none; }
.dimension-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.dimension strong { color: var(--green); font-size: 1.25rem; }
.dimension p { color: var(--text); line-height: 1.55; }
.dimension small { color: var(--muted); line-height: 1.5; display: block; }
.bar { height: 8px; background: rgba(255,255,255,0.1); border-radius: 999px; overflow: hidden; margin: 14px 0; }
.bar span { display: block; height: 100%; background: linear-gradient(90deg, var(--yellow), var(--green)); border-radius: inherit; }
.prompts, .sprint-box { padding: 22px; box-shadow: none; }
.prompts ol { color: var(--muted); line-height: 1.8; }
.offer-grid { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 24px; align-items: start; }
.pricing { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.price-card { padding: 20px; box-shadow: none; }
.price-card.featured { border-color: rgba(99,244,163,0.55); background: linear-gradient(180deg, rgba(99,244,163,0.14), rgba(255,255,255,0.035)); }
.cta-panel { display: flex; justify-content: space-between; align-items: center; gap: 20px; }
footer { color: var(--muted); padding: 34px 0 60px; text-align: center; }

@media (max-width: 860px) {
  .hero-grid, .offer-grid, .audit-form, .pricing { grid-template-columns: 1fr; }
  .dimensions { grid-template-columns: 1fr; }
  .result-summary, .cta-panel { align-items: stretch; flex-direction: column; }
  h1 { font-size: clamp(2.6rem, 14vw, 4.5rem); }
}