:root {
  --bg: #0b1020;
  --panel: rgba(13, 20, 39, 0.85);
  --panel-strong: #121a31;
  --line: rgba(255, 255, 255, 0.08);
  --text: #eef2ff;
  --muted: #a8b3cf;
  --accent: #7c9cff;
  --accent-strong: #5a7dff;
  --success: #3dd9a1;
  --warn: #ffcf5a;
  --danger: #ff7b8b;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Inter', system-ui, sans-serif;
  background: radial-gradient(circle at top, #172447 0%, #0b1020 45%, #070b16 100%);
  color: var(--text);
}
a { color: inherit; text-decoration: none; }
.page-shell { max-width: 1240px; margin: 0 auto; padding: 24px; }
.topbar {
  display: flex; justify-content: space-between; align-items: center; gap: 20px;
  padding: 16px 0 28px;
}
.brand { font-weight: 800; font-size: 1.2rem; letter-spacing: -0.03em; }
.topnav { display: flex; flex-wrap: wrap; gap: 18px; color: var(--muted); }
.topnav a:hover { color: var(--text); }
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}
.hero {
  display: grid; grid-template-columns: 1.5fr 0.8fr; gap: 28px; padding: 36px;
}
.eyebrow {
  text-transform: uppercase; letter-spacing: 0.12em; font-size: 0.75rem; color: #9cb2ff; font-weight: 700;
}
h1, h2, h3 { margin: 0 0 12px; letter-spacing: -0.04em; }
h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); line-height: 0.96; max-width: 12ch; }
h2 { font-size: clamp(1.7rem, 3vw, 2.5rem); }
h3 { font-size: 1.1rem; }
.lead, p, li { color: var(--muted); line-height: 1.65; }
.hero-actions, .actions-row { display: flex; flex-wrap: wrap; gap: 12px; margin: 24px 0 16px; }
.btn {
  border: 1px solid transparent; border-radius: 999px; padding: 14px 18px; font-weight: 700; cursor: pointer;
  transition: 0.2s ease; font: inherit;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: linear-gradient(135deg, var(--accent), var(--accent-strong)); color: white; }
.btn-secondary { background: rgba(255,255,255,0.06); color: var(--text); border-color: var(--line); }
.btn-ghost { background: transparent; color: var(--muted); border-color: var(--line); }
.btn-small { padding: 10px 14px; font-size: 0.92rem; }
.support-line { margin-top: 10px; }
.bullet-grid {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px 18px; padding-left: 18px;
}
.compact { margin-bottom: 0; }
.hero-panel, .result-hero, .metrics-grid, .two-col, .info-grid, .tool-layout, .steps-grid {
  display: grid; gap: 18px;
}
.hero-panel { align-content: start; }
.mini-stat, .metric-box {
  padding: 20px; border-radius: 20px; background: rgba(255,255,255,0.04); border: 1px solid var(--line);
}
.mini-stat span, .label { display: block; font-size: 0.82rem; color: var(--muted); margin-bottom: 8px; }
.mini-stat strong, .metric-box strong, .result-hero strong { font-size: 1.6rem; }
.info-grid { grid-template-columns: 1.3fr 0.9fr; margin-top: 24px; }
.checklist-card, .form-card, .results-card, .steps-card, .use-cases, .outputs-preview, .differentiator, .cta-card, .prose-card { padding: 28px; }
.checklist { padding-left: 18px; }
.small-note { margin-top: 16px; }
.tool-layout { grid-template-columns: 1.1fr 0.9fr; margin-top: 24px; align-items: start; }
.section-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; margin-bottom: 18px; }
.section-head.tight { margin-bottom: 14px; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
label { display: grid; gap: 8px; color: var(--text); font-weight: 600; font-size: 0.95rem; }
input, select {
  width: 100%; border-radius: 14px; border: 1px solid var(--line); padding: 14px 14px;
  background: rgba(255,255,255,0.05); color: var(--text); font: inherit;
}
input::placeholder { color: #7f8aad; }
.fee-lines, .comparison-block { margin-top: 26px; }
.fee-line-row {
  display: grid; grid-template-columns: 1.4fr 0.9fr 0.7fr auto; gap: 12px; margin-bottom: 12px;
}
.icon-btn {
  border: 1px solid var(--line); background: rgba(255,255,255,0.04); color: var(--text); border-radius: 14px; padding: 0 14px; cursor: pointer;
}
.results.hidden { display: none; }
.empty-state { padding: 18px 0; }
.result-hero { grid-template-columns: repeat(3, minmax(0, 1fr)); margin: 20px 0; }
.verdict-panel {
  padding: 22px; border-radius: 22px; background: linear-gradient(135deg, rgba(124,156,255,0.18), rgba(61,217,161,0.08)); border: 1px solid var(--line);
}
.metrics-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); margin: 18px 0; }
.two-col { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.list-box {
  display: grid; gap: 10px;
}
.list-item {
  padding: 14px 16px; border-radius: 16px; background: rgba(255,255,255,0.04); border: 1px solid var(--line);
}
.flag-warn { border-color: rgba(255, 207, 90, 0.25); }
.flag-danger { border-color: rgba(255, 123, 139, 0.25); }
.muted { color: var(--muted); }
.steps-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.steps-grid article { padding: 18px; border-radius: 20px; background: rgba(255,255,255,0.03); border: 1px solid var(--line); }
.steps-grid span {
  display: inline-flex; width: 40px; height: 40px; border-radius: 50%; align-items: center; justify-content: center;
  background: rgba(124,156,255,0.14); color: var(--text); margin-bottom: 14px; font-weight: 800;
}
.use-cases, .outputs-preview, .differentiator, .cta-card, .steps-card { margin-top: 24px; }
.stack-page { display: grid; gap: 22px; }
.prose-card ul { padding-left: 20px; }
.prose-card code { color: #dce5ff; }
.faq-list details {
  border-top: 1px solid var(--line); padding: 14px 0;
}
.faq-list summary { cursor: pointer; font-weight: 700; color: var(--text); }
.toast {
  position: sticky; bottom: 18px; margin-top: 16px; padding: 14px 16px; border-radius: 16px;
  background: rgba(10, 16, 32, 0.92); border: 1px solid var(--line); color: var(--text); opacity: 0; pointer-events: none; transition: 0.2s ease;
}
.toast.show { opacity: 1; }
.hidden { display: none !important; }
.site-footer {
  display: flex; justify-content: center; text-align: center; padding: 30px 0 10px; color: var(--muted);
}
.site-footer strong, .site-footer span { display: block; }
@media (max-width: 980px) {
  .hero, .info-grid, .tool-layout, .steps-grid, .two-col, .result-hero, .metrics-grid { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .page-shell { padding: 18px; }
  .hero, .checklist-card, .form-card, .results-card, .steps-card, .use-cases, .outputs-preview, .differentiator, .cta-card, .prose-card { padding: 22px; }
  .topbar, .section-head, .fee-line-row, .form-grid { grid-template-columns: 1fr; display: grid; }
  .topbar { gap: 14px; }
  .bullet-grid { grid-template-columns: 1fr; }
}