:root {
  --bg: #0b1020;
  --panel: #121a2f;
  --panel-2: #19223d;
  --text: #e9eefb;
  --muted: #a9b4cf;
  --line: rgba(255,255,255,0.1);
  --accent: #66d9b8;
  --accent-2: #7aa7ff;
  --shadow: 0 20px 60px rgba(0,0,0,0.25);
  --radius: 22px;
  --max: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top right, rgba(122,167,255,0.18), transparent 22%),
    radial-gradient(circle at top left, rgba(102,217,184,0.12), transparent 20%),
    var(--bg);
  color: var(--text);
  line-height: 1.6;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }
.container { width: min(calc(100% - 2rem), var(--max)); margin: 0 auto; }
.section { padding: 72px 0; }
.skip-link {
  position: absolute; left: -999px; top: auto;
}
.skip-link:focus { left: 1rem; top: 1rem; background: #fff; color: #000; padding: .75rem 1rem; z-index: 1000; }
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(11,16,32,0.78);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 14px 0;
}
.brand { display: flex; align-items: center; gap: .85rem; font-weight: 800; color: var(--text); }
.brand-mark {
  width: 42px; height: 42px; border-radius: 14px;
  display: grid; place-items: center; font-weight: 900;
  background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #08101f;
}
.nav { display: flex; gap: 1rem; flex-wrap: wrap; }
.nav a { color: var(--text); opacity: .9; font-weight: 600; }
.hero {
  padding: 68px 0 28px;
}
.hero-grid {
  display: grid; grid-template-columns: 1.15fr .85fr; gap: 2rem; align-items: center;
}
.eyebrow {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .4rem .8rem; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font-size: .92rem;
  background: rgba(255,255,255,0.03);
}
.hero h1 { font-size: clamp(2.3rem, 5vw, 4.2rem); line-height: 1.08; margin: 1rem 0; }
.hero p { color: var(--muted); font-size: 1.07rem; max-width: 62ch; }
.hero-cta { display: flex; gap: .9rem; flex-wrap: wrap; margin-top: 1.5rem; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .6rem;
  min-height: 48px; padding: .85rem 1.1rem; border-radius: 14px; border: 1px solid transparent;
  font-weight: 700; transition: transform .2s ease, opacity .2s ease, border-color .2s ease;
}
.btn:hover { transform: translateY(-1px); text-decoration: none; }
.btn-primary { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #0a1021; }
.btn-secondary { background: rgba(255,255,255,0.03); color: var(--text); border-color: var(--line); }
.card {
  background: linear-gradient(180deg, rgba(255,255,255,0.05), rgba(255,255,255,0.025));
  border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow);
}
.hero-panel { padding: 1.2rem; }
.stat-list { display: grid; grid-template-columns: repeat(3,1fr); gap: 1rem; margin-top: 1rem; }
.stat { padding: 1rem; border-radius: 18px; background: rgba(255,255,255,0.03); border: 1px solid var(--line); }
.stat strong { display: block; font-size: 1.4rem; }
.section-title { font-size: clamp(1.8rem, 4vw, 2.8rem); margin: 0 0 .8rem; }
.section-subtitle { color: var(--muted); max-width: 70ch; margin: 0 0 1.25rem; }
.tool-layout { display: grid; grid-template-columns: 420px 1fr; gap: 1.4rem; align-items: start; }
.tool-panel, .results-panel { padding: 1.2rem; }
.form-grid { display: grid; gap: .95rem; }
.field label { display: block; font-weight: 700; margin-bottom: .38rem; }
.field input {
  width: 100%; min-height: 48px; border-radius: 14px; border: 1px solid var(--line);
  background: rgba(255,255,255,0.03); color: var(--text); padding: .85rem .95rem; font: inherit;
}
.field small { display: block; color: var(--muted); margin-top: .25rem; }
.results-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-bottom: 1rem; }
.result-box { padding: 1rem; border-radius: 18px; background: rgba(255,255,255,0.03); border: 1px solid var(--line); }
.result-box span { display:block; color: var(--muted); font-size: .95rem; }
.result-box strong { display:block; font-size: 1.55rem; margin-top: .25rem; }
canvas {
  width: 100%; height: auto; border-radius: 18px; background: linear-gradient(180deg, rgba(122,167,255,0.06), rgba(255,255,255,0.02));
  border: 1px solid var(--line);
}
.note { color: var(--muted); font-size: .95rem; }
.features-grid, .blog-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem;
}
.feature-card, .blog-card, .cta-card { padding: 1.25rem; }
.blog-card h3, .feature-card h3 { margin-top: .2rem; }
.blog-meta { color: var(--muted); font-size: .92rem; }
.cta-card {
  display: grid; grid-template-columns: 1.2fr .8fr; gap: 1rem; align-items: center;
}
.footer { border-top: 1px solid var(--line); padding: 28px 0 48px; color: var(--muted); }
.footer-grid { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.badge {
  display:inline-block; padding:.35rem .7rem; border:1px solid var(--line); border-radius:999px; color:var(--muted); font-size:.85rem; margin-bottom:.85rem;
}
.article-hero { padding: 56px 0 24px; }
.article-wrap { display:grid; grid-template-columns: minmax(0, 760px); }
.article { padding: 1.5rem; }
.article p, .article li { color: #d9e2f8; }
.article h1, .article h2, .article h3 { line-height: 1.2; }
.article img { border-radius: 20px; border: 1px solid var(--line); margin: 1rem 0 1.5rem; }
.breadcrumbs { color: var(--muted); font-size: .94rem; margin-bottom: .8rem; }
.article-nav { display:flex; gap:1rem; flex-wrap:wrap; margin-top: 2rem; }
.muted { color: var(--muted); }
.code-note { padding: .85rem 1rem; background: rgba(255,255,255,0.03); border:1px solid var(--line); border-radius: 14px; }
@media (max-width: 1024px) {
  .hero-grid, .tool-layout, .cta-card, .features-grid, .blog-grid { grid-template-columns: 1fr; }
  .results-grid, .stat-list { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 640px) {
  .results-grid, .stat-list { grid-template-columns: 1fr; }
  .header-inner { align-items: flex-start; }
  .nav { gap: .7rem; }
  .hero h1 { font-size: 2.25rem; }
  .section { padding: 56px 0; }
}