/* SystemOneModels.pro — shared styles. Independent site; not affiliated with TypeSafe AI.
   Deliberately generic developer-dark theme. */
:root {
  --bg: #0d1117; --panel: #161b22; --border: #30363d;
  --fg: #e6edf3; --muted: #8b949e; --accent: #58a6ff; --accent2: #3fb950;
  --warn: #d29922; --danger: #f85149; --mono: ui-monospace, SFMono-Regular, Menlo, monospace;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.65 -apple-system, "Segoe UI", Roboto, sans-serif; }
a { color: var(--accent); text-decoration: none; } a:hover { text-decoration: underline; }
.wrap { max-width: 960px; margin: 0 auto; padding: 0 20px 80px; }
header.site { border-bottom: 1px solid var(--border); background: var(--panel); position: sticky; top: 0; z-index: 5; }
header.site .bar { max-width: 960px; margin: 0 auto; padding: 12px 20px; display: flex; gap: 14px; align-items: center; flex-wrap: wrap; }
header.site .brand { font-weight: 700; font-size: 17px; color: var(--fg); }
header.site .brand span { color: var(--accent); }
header.site nav { margin-left: auto; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
nav a { color: #f0f6fc; font-size: 15px; font-weight: 600; padding: 8px 18px; border-radius: 9px; border: 1px solid #3d4654; background: #232b36; }
nav a:hover { background: #313c4b; color: #fff; text-decoration: none; }
nav a.active { background: #1f6feb55; color: #79c0ff; border-color: #1f6feb; }
h1 { font-size: 30px; line-height: 1.25; margin: 42px 0 10px; }
h2 { font-size: 22px; margin: 38px 0 10px; border-bottom: 1px solid var(--border); padding-bottom: 8px; }
h3 { font-size: 17px; margin: 26px 0 8px; }
p.lead { color: var(--muted); font-size: 17.5px; max-width: 720px; }
.tag { display: inline-block; font-size: 11.5px; padding: 1px 8px; border: 1px solid var(--border); border-radius: 99px; color: var(--muted); margin-left: 8px; vertical-align: 2px; }
.grid { display: grid; gap: 14px; } .grid.c3 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.card { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 18px 20px; }
.card h3 { margin-top: 0; }
.card p { color: var(--muted); margin: 8px 0 0; }
.btn { display: inline-block; background: #21262d; color: var(--fg); border: 1px solid var(--border); border-radius: 8px; padding: 9px 18px; font-size: 15px; cursor: pointer; }
.btn:hover { border-color: var(--accent); }
.btn.primary { background: #1f6feb33; border-color: var(--accent); }
label { display: block; font-size: 13.5px; color: var(--muted); margin: 14px 0 5px; }
input[type=number], input[type=text], select, textarea {
  width: 100%; background: #0d1117; color: var(--fg); border: 1px solid var(--border); border-radius: 8px; padding: 9px 12px; font-size: 15px; font-family: inherit;
}
textarea { font-family: var(--mono); font-size: 13.5px; min-height: 90px; }
code, pre { font-family: var(--mono); }
pre { background: #010409; border: 1px solid var(--border); border-radius: 10px; padding: 16px; overflow-x: auto; font-size: 13px; line-height: 1.55; }
table { border-collapse: collapse; width: 100%; font-size: 14.5px; margin: 12px 0; }
th, td { border: 1px solid var(--border); padding: 8px 12px; text-align: left; vertical-align: top; }
th { background: #21262d; color: var(--muted); font-weight: 600; }
.note { border-left: 3px solid var(--warn); background: #161b22; padding: 10px 16px; border-radius: 0 8px 8px 0; color: var(--muted); font-size: 14px; margin: 18px 0; }
.ok { color: var(--accent2); } .bad { color: var(--danger); }
.big { font-size: 26px; font-weight: 700; font-family: var(--mono); }
.share { background: #010409; border: 1px dashed var(--border); border-radius: 10px; padding: 14px 18px; font-family: var(--mono); font-size: 13px; color: var(--muted); white-space: pre-wrap; }
footer.site { border-top: 1px solid var(--border); margin-top: 70px; padding: 26px 20px 40px; color: var(--muted); font-size: 13px; }
footer.site .inner { max-width: 960px; margin: 0 auto; }
footer.site a { color: var(--muted); text-decoration: underline; }
.faq-q { font-weight: 600; margin-top: 20px; }
.kbd { background:#21262d; border:1px solid var(--border); border-radius:5px; padding:0 6px; font-size:12.5px; }