:root{
  --bg:#08111f;
  --fg:#f2f6ff;
  --muted:#c0cae0;
  --card:#111c30;
  --card-soft:#16243d;
  --accent:#79a9ff;
  --accent-2:#86f0d1;
  --border:#2a3d63;
  --focus:#ffd56b;
  --shadow:0 14px 40px rgba(0,0,0,.24);
}
[data-theme="light"]{
  --bg:#f7f9ff;
  --fg:#10192b;
  --muted:#4f6186;
  --card:#ffffff;
  --card-soft:#eef4ff;
  --accent:#2e6dff;
  --accent-2:#0e9c7b;
  --border:#d9e4ff;
  --focus:#ffb400;
  --shadow:0 10px 28px rgba(18,34,66,.10);
}
*{box-sizing:border-box}
html{font-size:18px;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  background:
    radial-gradient(circle at top left, rgba(121,169,255,.16), transparent 26%),
    radial-gradient(circle at top right, rgba(134,240,209,.09), transparent 22%),
    var(--bg);
  color:var(--fg);
  line-height:1.6;
}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;display:block}
header{
  position:sticky;top:0;z-index:20;
  background:color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
}
.wrap{max-width:1160px;margin:0 auto;padding:16px}
.brand{
  display:flex;align-items:flex-start;justify-content:space-between;gap:18px;
}
.brand-main{display:flex;flex-direction:column;gap:10px;min-width:0}
.logo{display:flex;align-items:center;gap:12px;text-decoration:none}
.logo-mark{
  width:56px;height:56px;border-radius:18px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--accent),color-mix(in srgb,var(--accent) 35%, white));
  color:#0b1020;font-size:1.6rem;font-weight:800;box-shadow:var(--shadow)
}
.logo-copy{display:flex;flex-direction:column;gap:2px}
.logo-title{font-size:1.3rem;font-weight:800;color:var(--fg)}
.logo-sub{font-size:.95rem;color:var(--muted)}
.logo-text{font-size:1.15rem;font-weight:800;color:var(--fg)}
.badge,.eyebrow,.label,.kbd{
  display:inline-flex;align-items:center;gap:8px;padding:7px 11px;border-radius:999px;
  border:1px solid var(--border);background:color-mix(in srgb,var(--card) 94%, transparent);
}
.badge,.eyebrow,.label{color:var(--fg);font-size:.93rem}
.slogan{max-width:820px;font-size:1rem;color:var(--fg)}
.lang-switch,.nav-left,.nav-right,.quick-actions,.section-nav,.prompt-tags,.footer-links,.button-row,.pill-row{
  display:flex;flex-wrap:wrap;gap:10px;align-items:center
}
nav{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;margin-top:12px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 14px;border-radius:14px;border:1px solid var(--border);
  background:color-mix(in srgb,var(--card) 96%, transparent);color:var(--fg);
  cursor:pointer;transition:transform .12s ease, filter .12s ease, background .12s ease;
  box-shadow:0 6px 18px rgba(0,0,0,.08);
}
.btn:hover{text-decoration:none;filter:brightness(1.05);transform:translateY(-1px)}
.btn.primary{background:var(--accent);border-color:transparent;color:#08111f;font-weight:800}
.btn.soft{background:color-mix(in srgb,var(--card-soft) 92%, transparent)}
main{padding:28px 0 64px}
section{scroll-margin-top:110px}
.card,.info-card,.compare-card,.feature-card,.step-card,.path-card,.story-card,.action-card,.language-card,.check-card{
  background:color-mix(in srgb,var(--card) 97%, transparent);
  border:1px solid var(--border);border-radius:24px;padding:20px;box-shadow:var(--shadow)
}
.hero,.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:18px;align-items:stretch}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.compare-grid,.feature-grid,.story-grid,.path-grid,.step-grid,.audience-grid,.stats-grid,.tool-grid,.resource-grid{
  display:grid;gap:14px
}
.compare-grid{grid-template-columns:repeat(2,1fr)}
.feature-grid,.story-grid,.path-grid,.audience-grid,.tool-grid{grid-template-columns:repeat(3,1fr)}
.step-grid{grid-template-columns:repeat(4,1fr)}
.stats-grid{grid-template-columns:repeat(4,1fr)}
.resource-grid{grid-template-columns:repeat(2,1fr)}
.hero-panel{display:grid;gap:14px}
.hero-copy h1{font-size:clamp(2rem,3.3vw,3.2rem);line-height:1.08;margin:0 0 12px}
h1{margin:0 0 12px;font-size:2rem;line-height:1.14}
h2{margin:0 0 10px;font-size:1.35rem}
h3{margin:0 0 8px;font-size:1.08rem}
p,li{color:var(--muted)}
ul,ol{padding-left:20px;margin:0 0 12px}
.small,.helper{font-size:.96rem;color:var(--muted)}
.stat{padding:16px;border:1px solid var(--border);border-radius:18px;background:color-mix(in srgb,var(--card-soft) 94%, transparent)}
.stat strong{display:block;font-size:1.12rem;color:var(--fg)}
.note-box,.callout{
  border-left:4px solid var(--accent);padding:14px 16px;border-radius:18px;
  background:color-mix(in srgb,var(--card-soft) 96%, transparent)
}
.callout.alt{border-left-color:var(--accent-2)}
.checklist,.link-list,.feature-list{display:grid;gap:10px;margin-top:10px}
.checklist span,.link-list a,.feature-list span,.prompt-card,.step-card .step-number,.help-list span{
  padding:12px 14px;border:1px solid var(--border);border-radius:16px;background:color-mix(in srgb,var(--card-soft) 95%, transparent)
}
.link-list a{display:block;color:var(--fg)}
.link-list a:hover{text-decoration:none;filter:brightness(1.04)}
.hero-checklist{display:grid;gap:10px}
.hero-checklist span{padding:12px 14px;border:1px solid var(--border);border-radius:16px;background:color-mix(in srgb,var(--card-soft) 95%, transparent)}
.searchbox{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.field,input[type="search"],input[type="text"],textarea,select{
  width:100%;padding:13px 15px;border-radius:16px;border:1px solid var(--border);
  background:color-mix(in srgb,var(--card) 96%, transparent);color:var(--fg);font:inherit
}
textarea{min-height:130px;resize:vertical}
.field-inline{display:grid;gap:8px}
.prompt-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.prompt-card strong{display:block;color:var(--fg);margin-bottom:6px}
.help-list{display:grid;gap:10px}
.compare-card p,.feature-card p,.story-card p,.path-card p,.action-card p{margin:0 0 10px}
.compare-card ul,.feature-card ul,.story-card ul,.path-card ul,.action-card ul{margin-top:10px}
.footer-shell{border-top:1px solid var(--border);padding:24px 0 40px}
.footer-links a{color:var(--fg)}
.skip-link{
  position:absolute;left:-9999px;top:10px;padding:10px 12px;background:var(--accent);
  color:#08111f;border-radius:12px;border:2px solid var(--focus);z-index:999
}
.skip-link:focus{left:16px}
.kbd{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.88rem;color:var(--fg)}
.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.btn:focus,.field:focus,input:focus,textarea:focus,select:focus{outline:none}
.btn:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid var(--focus);outline-offset:2px}
.language-chooser{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.language-card h2{margin-bottom:8px}
.language-card .btn{margin-top:10px}
.section-stack{display:grid;gap:18px}
.divider{height:1px;background:var(--border);margin:4px 0}
.center{text-align:center}
@media (max-width:1100px){
  .step-grid,.stats-grid,.feature-grid,.story-grid,.path-grid,.audience-grid,.tool-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:930px){
  .brand,.hero,.hero-grid,.grid2,.compare-grid,.resource-grid,.language-chooser{grid-template-columns:1fr;display:grid}
  .brand{display:flex;flex-direction:column}
  .lang-switch{justify-content:flex-start}
}
@media (max-width:760px){
  .feature-grid,.story-grid,.path-grid,.audience-grid,.stats-grid,.step-grid,.tool-grid,.grid3,.grid4,.prompt-grid{grid-template-columns:1fr}
  .wrap{padding:14px}
  .btn{width:auto}
}


.video-shell{border:1px solid var(--border);border-radius:22px;overflow:hidden;background:color-mix(in srgb,var(--card-soft) 94%, transparent);box-shadow:var(--shadow)}
.video-embed{display:block;width:100%;min-height:420px;border:0;background:#0b1020}
@media (max-width:760px){.video-embed{min-height:320px}}