/* AstraNL UI v1 - world-class friendly design tokens (2026-07-19).
   Light by default, dark via [data-theme=dark]. Applied via astra-ui.js. */
:root{
  --bg:#f7f9fb;--surface:#ffffff;--text:#1a2332;--muted:#5b6b7f;
  --brand:#0e9f84;--brand-ink:#063b31;--accent:#f0a020;
  --border:#e3e9ef;--shadow:0 2px 12px rgba(20,40,60,.08);
  --radius:14px;--radius-s:10px;
  --font:system-ui,-apple-system,'Segoe UI',Roboto,'Helvetica Neue',sans-serif;
}
[data-theme=dark]{
  --bg:#0d1117;--surface:#161b22;--text:#e6edf3;--muted:#8b949e;
  --brand:#1abc9c;--brand-ink:#06231c;--accent:#f0b040;
  --border:#2a3038;--shadow:0 2px 14px rgba(0,0,0,.45);
}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--text);
  margin:0;line-height:1.65;font-size:16.5px;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  transition:background .25s,color .25s}
h1,h2,h3{line-height:1.25;letter-spacing:-.01em}
h1{font-size:clamp(24px,4.5vw,34px)}h2{font-size:clamp(19px,3vw,24px)}
p{max-width:70ch}
a{color:var(--brand);text-decoration:none}a:hover{text-decoration:underline}
.card,section.card,div.card{background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;margin:16px 0}
input,select,textarea{background:var(--surface);color:var(--text);
  border:1.5px solid var(--border);border-radius:var(--radius-s);
  padding:12px 14px;font-size:16px;font-family:var(--font);width:100%;
  box-sizing:border-box;transition:border-color .2s}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--brand)}
button,.btn{background:var(--brand);color:#fff;border:0;
  border-radius:var(--radius-s);padding:13px 22px;font-size:16.5px;
  font-weight:650;cursor:pointer;font-family:var(--font);
  transition:transform .12s,filter .2s}
button:hover,.btn:hover{filter:brightness(1.07)}
button:active,.btn:active{transform:scale(.98)}
table{border-collapse:collapse;width:100%}
th,td{padding:10px 12px;border-bottom:1px solid var(--border);text-align:left}
small,.muted{color:var(--muted)}
#astra-theme-toggle{position:fixed;top:14px;right:14px;z-index:9999;
  width:44px;height:44px;border-radius:50%;background:var(--surface);
  color:var(--text);border:1.5px solid var(--border);box-shadow:var(--shadow);
  font-size:20px;padding:0;display:flex;align-items:center;justify-content:center}
@media (max-width:640px){body{font-size:16px}.card{padding:16px}}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}