/* ============================================================================
   cufemlab — professional engineering-software design system
   Benchmarked vs ANSYS Motor-CAD / Maxwell / COMSOL: light neutral palette,
   one restrained corporate accent, real data, no neon / gradient-text / glow.
   Shared by index.html + docs/*.html + contact/pilot.
   ========================================================================== */
:root{
  --bg:#ffffff; --bg-alt:#f5f7fa; --bg-sunken:#eceff4; --panel:#ffffff;
  --ink:#0f2034; --text:#33425a; --muted:#677488; --faint:#8a96a8;
  --line:#dfe4ec; --line-2:#c8d0dc;
  --brand:#0b5fb0; --brand-deep:#0a4d90; --brand-tint:#eaf2fb;
  --pass:#1d7a3e; --pass-bg:#e8f5ec; --partial:#9a6a10; --partial-bg:#fbf4e6;
  --out:#9aa3b2; --out-bg:#f1f3f7;
  --code-bg:#0e1b2c; --code-ink:#d6e2f2; --code-dim:#7e92ad;
  --r:8px; --r-lg:12px; --maxw:1180px;
  --shadow:0 1px 2px rgba(16,32,52,.06), 0 1px 1px rgba(16,32,52,.04);
  --shadow-md:0 4px 16px -6px rgba(16,32,52,.16);
  --sans:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  --mono:'IBM Plex Mono','JetBrains Mono',ui-monospace,Menlo,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--sans);
  font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--brand);text-decoration:none}
a:hover{color:var(--brand-deep);text-decoration:underline}
h1,h2,h3,h4{color:var(--ink);font-weight:650;line-height:1.2;letter-spacing:-.01em;margin:0}
h2{font-size:1.9rem}h3{font-size:1.2rem}
p{margin:0 0 1rem}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}
.eyebrow{font:600 12px/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--brand)}
.muted{color:var(--muted)}.small{font-size:13.5px}.mono{font-family:var(--mono)}
section{padding:72px 0;border-top:1px solid var(--line)}
.section-head{max-width:760px;margin:0 0 36px}
.section-head h2{margin:10px 0 12px}
.section-head p{color:var(--muted);font-size:17px;margin:0}

/* nav */
header.nav{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.92);
  border-bottom:1px solid var(--line);backdrop-filter:saturate(1.4)}
.nav-in{display:flex;align-items:center;gap:26px;height:62px;max-width:var(--maxw);margin:0 auto;padding:0 28px}
.brand{display:flex;align-items:center;gap:9px;font-weight:700;color:var(--ink);font-size:18px;letter-spacing:-.02em}
.brand:hover{text-decoration:none;color:var(--ink)}
.brand .mk{width:24px;height:24px;border-radius:5px;background:var(--brand);position:relative;flex:0 0 auto}
.brand .mk::after{content:"";position:absolute;inset:6px;border:2px solid #fff;border-radius:2px;border-right-color:transparent;border-bottom-color:transparent}
.brand b{color:var(--brand)}
.ver{font:600 11px/1 var(--mono);color:var(--muted);border:1px solid var(--line-2);border-radius:5px;padding:4px 7px}
.nav-links{display:flex;gap:22px;margin-left:8px}
.nav-links a{color:var(--text);font-size:14.5px;font-weight:500}
.nav-links a:hover{color:var(--brand);text-decoration:none}
.nav-cta{margin-left:auto;display:flex;align-items:center;gap:14px}
.btn{display:inline-flex;align-items:center;gap:7px;font-weight:600;font-size:14.5px;
  border-radius:7px;padding:9px 16px;border:1px solid transparent;cursor:pointer;transition:background .15s,border-color .15s}
.btn:hover{text-decoration:none}
.btn-pri{background:var(--brand);color:#fff}.btn-pri:hover{background:var(--brand-deep);color:#fff}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line-2)}.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn-lg{padding:12px 22px;font-size:15.5px}
.signin{color:var(--text);font-size:14.5px;font-weight:500}

/* hero */
.hero{padding:78px 0 64px;border-top:none;background:linear-gradient(180deg,var(--bg-alt),#fff)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center}
.hero h1{font-size:2.85rem;letter-spacing:-.025em;margin:14px 0 18px}
.hero .lede{font-size:18.5px;color:var(--text);max-width:540px;margin:0 0 26px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:26px}
.hero-proof{display:flex;gap:10px;align-items:center;font-size:14px;color:var(--muted)}
.hero-proof .dot{width:8px;height:8px;border-radius:50%;background:var(--pass);flex:0 0 auto}
.hero-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-md);overflow:hidden}
.hero-card .hc-top{display:flex;justify-content:space-between;align-items:center;padding:13px 18px;border-bottom:1px solid var(--line);background:var(--bg-alt)}
.hero-card .hc-top span{font:600 12px/1 var(--mono);color:var(--muted)}
.hero-card .hc-top .tag{color:var(--pass);background:var(--pass-bg);border-radius:5px;padding:4px 8px}
.hc-body{padding:6px 18px 14px}
.hc-row{display:flex;justify-content:space-between;align-items:baseline;padding:11px 0;border-bottom:1px solid var(--line)}
.hc-row:last-child{border-bottom:none}
.hc-row .k{color:var(--muted);font-size:13.5px}
.hc-row .v{font-family:var(--mono);font-weight:600;color:var(--ink);font-size:15px}
.hc-row .v small{color:var(--muted);font-weight:400;font-size:12px}
.hc-foot{padding:11px 18px;background:var(--bg-alt);border-top:1px solid var(--line);font-size:12.5px;color:var(--muted)}

/* stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;margin-top:8px}
.stat{background:#fff;padding:22px 20px}
.stat .n{font:700 26px/1 var(--sans);color:var(--ink);letter-spacing:-.02em}
.stat .l{color:var(--muted);font-size:13px;margin-top:6px}

/* cards */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);padding:22px;box-shadow:var(--shadow);transition:border-color .15s;display:flex;flex-direction:column}
.card:hover{border-color:var(--line-2)}
.card h3{font-size:16.5px;margin-bottom:8px}
.card .lab{font:600 11px/1 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--brand);margin-bottom:11px;display:block}
.card p{font-size:14.5px;color:var(--muted);margin:0 0 12px}
.card .meta{font:500 12.5px/1.4 var(--mono);color:var(--text);border-top:1px solid var(--line);padding-top:11px;margin-top:auto}
.card .meta b{color:var(--pass)}

/* tables */
.tbl{width:100%;border-collapse:collapse;font-size:14px;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden}
.tbl th{background:var(--bg-alt);text-align:left;font-weight:600;color:var(--ink);font-size:12.5px;
  text-transform:uppercase;letter-spacing:.04em;padding:12px 16px;border-bottom:1px solid var(--line)}
.tbl td{padding:13px 16px;border-bottom:1px solid var(--line);vertical-align:top;color:var(--text)}
.tbl tr:last-child td{border-bottom:none}
.tbl td.mono,.tbl td .mono{font-family:var(--mono);font-size:13px}
.pill{display:inline-block;font:600 11px/1 var(--mono);padding:4px 8px;border-radius:5px;white-space:nowrap}
.pill.pass{color:var(--pass);background:var(--pass-bg)}.pill.part{color:var(--partial);background:var(--partial-bg)}.pill.out{color:var(--out);background:var(--out-bg)}

/* scope */
.scope{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.scope .col{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden}
.scope .col h4{padding:14px 18px;font-size:14px;border-bottom:1px solid var(--line)}
.scope .col.in h4{background:var(--pass-bg);color:var(--pass)}
.scope .col.def h4{background:var(--partial-bg);color:var(--partial)}
.scope .col.no h4{background:var(--out-bg);color:#5b6472}
.scope ul{margin:0;padding:14px 18px 16px 32px;font-size:14px;color:var(--text)}
.scope li{margin:0 0 8px}

/* code */
.code{background:var(--code-bg);border-radius:var(--r-lg);overflow:hidden;border:1px solid #1b2a40}
.code .ctop{display:flex;justify-content:space-between;align-items:center;padding:10px 16px;border-bottom:1px solid #1b2a40}
.code .ctop span{font:600 12px/1 var(--mono);color:var(--code-dim)}
.code pre{margin:0;padding:18px 20px;overflow-x:auto;font:500 13.5px/1.7 var(--mono);color:var(--code-ink)}
.code .c{color:#6f86a6}.code .k{color:#7fb3ff}.code .s{color:#9ad0a0}.code .n{color:#e0b07a}.code .f{color:#c8a6ff}

.vv{background:var(--bg-sunken)}
.vv .note{font-size:13px;color:var(--muted);margin-top:18px;border-left:3px solid var(--line-2);padding-left:14px}
.callout{background:var(--brand-tint);border:1px solid #cfe0f4;border-radius:var(--r-lg);padding:18px 22px;font-size:14.5px;color:#1a3a5e}
.callout b{color:var(--brand-deep)}
.callout.warn{background:var(--partial-bg);border-color:#ecd9b0;color:#5e4711}
.callout.warn b{color:var(--partial)}

/* pricing */
.tiers{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.tier{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:26px}
.tier.hot{border-color:var(--brand);box-shadow:var(--shadow-md)}
.tier .tn{font-weight:600;color:var(--ink);font-size:17px}
.tier .tp{font:700 30px/1 var(--sans);color:var(--ink);margin:12px 0 4px;letter-spacing:-.02em}
.tier .tp small{font:500 13px/1 var(--mono);color:var(--muted)}
.tier ul{list-style:none;padding:0;margin:18px 0 0;font-size:14px}
.tier li{padding:8px 0 8px 24px;position:relative;color:var(--text);border-top:1px solid var(--line)}
.tier li::before{content:"";position:absolute;left:2px;top:14px;width:9px;height:5px;border-left:2px solid var(--pass);border-bottom:2px solid var(--pass);transform:rotate(-45deg)}

/* footer */
footer{background:#0f2034;color:#aeb9c9;padding:54px 0 30px;border:none}
footer h5{color:#fff;font-size:13px;text-transform:uppercase;letter-spacing:.06em;margin:0 0 14px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:34px}
footer a{color:#aeb9c9;font-size:14px;display:block;margin-bottom:9px}
footer a:hover{color:#fff;text-decoration:none}
.foot-bot{border-top:1px solid #20344e;margin-top:34px;padding-top:20px;display:flex;justify-content:space-between;font-size:12.5px;color:#7d8aa0;flex-wrap:wrap;gap:10px}

/* ===== docs layout ===== */
.doc-wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px;display:grid;grid-template-columns:236px 1fr;gap:44px;align-items:start}
.doc-side{position:sticky;top:84px;align-self:start;padding:30px 0;font-size:14px}
.doc-side .grp{margin-bottom:22px}
.doc-side .grp-t{font:600 11px/1 var(--mono);letter-spacing:.07em;text-transform:uppercase;color:var(--faint);margin:0 0 10px}
.doc-side a{display:block;color:var(--text);padding:5px 0;border-radius:5px}
.doc-side a:hover{color:var(--brand);text-decoration:none}
.doc-side a.cur{color:var(--brand);font-weight:600}
.doc-main{padding:34px 0 80px;min-width:0;max-width:820px}
.doc-main .crumb{font:500 13px/1 var(--mono);color:var(--muted);margin-bottom:16px}
.doc-main h1{font-size:2.1rem;letter-spacing:-.02em;margin:0 0 14px}
.doc-main h2{font-size:1.4rem;margin:42px 0 14px;padding-top:10px}
.doc-main h3{font-size:1.12rem;margin:28px 0 10px}
.doc-main p,.doc-main li{font-size:15.5px;color:var(--text)}
.doc-main ul,.doc-main ol{padding-left:22px}.doc-main li{margin:0 0 8px}
.doc-main .lead{font-size:18px;color:var(--muted);margin-bottom:8px}
.doc-main code{font-family:var(--mono);font-size:.86em;background:var(--bg-sunken);border:1px solid var(--line);border-radius:5px;padding:1px 6px;color:#1a3a5e}
.doc-main .code{margin:18px 0}
.doc-main .code pre code{background:none;border:none;padding:0;color:inherit;font-size:13.5px}
.doc-main table{margin:18px 0}
.doc-main .callout{margin:18px 0}
.step{display:flex;gap:16px;margin:0 0 8px;padding:18px 0;border-bottom:1px solid var(--line)}
.step .num{flex:0 0 30px;height:30px;border-radius:50%;background:var(--brand-tint);color:var(--brand-deep);font:700 14px/30px var(--mono);text-align:center}
.step .sx h3{margin:2px 0 6px}
@media(max-width:900px){
  .hero-grid,.grid-3,.grid-2,.scope,.tiers,.stats,.foot-grid,.doc-wrap{grid-template-columns:1fr}
  .doc-side{position:static;padding:14px 0;border-bottom:1px solid var(--line)}
  .nav-links{display:none}.hero h1{font-size:2.2rem}h2{font-size:1.55rem}
}

/* === AUTO-GENERATED (product_manifest.yaml) - mobile navigation ============ */
/* Before this block the entire public nav was display:none below 900px, with no
   toggle anywhere: on a phone the site had no navigation at all. */
.nav-toggle{display:none}
@media (max-width:900px){
  .nav-toggle{display:block;cursor:pointer;width:26px;height:20px;position:relative;margin-left:auto}
  .nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
    content:"";position:absolute;left:0;width:26px;height:2px;background:currentColor;transition:.2s}
  .nav-toggle span{top:9px}
  .nav-toggle span::before{top:-7px}
  .nav-toggle span::after{top:7px}
  .nav-toggle-cb:checked ~ .nav-links{
    display:flex!important;flex-direction:column;gap:2px;
    position:absolute;top:100%;left:0;right:0;z-index:60;
    background:var(--bg,#fff);border-bottom:1px solid rgba(0,0,0,.08);
    padding:10px 18px 14px;box-shadow:0 12px 24px rgba(0,0,0,.08)}
  .nav-toggle-cb:checked ~ .nav-links a{padding:9px 0;display:block}
  .nav-in{position:relative;flex-wrap:wrap}

  /* Wide data tables were pushing the whole PAGE sideways on a phone: the browser
     gate measured scrollWidth 577 vs a 393px viewport on the homepage, and 772 vs
     393 in the docs. A table that is wider than the screen must scroll inside its
     own box, not drag the document with it. This was invisible until the site had
     a mobile nav worth testing. */
  table.tbl, table.fmatrix{
    display:block;width:100%;max-width:100%;
    overflow-x:auto;-webkit-overflow-scrolling:touch}
  img,pre,code{max-width:100%}
  pre{overflow-x:auto}
}
/* === END AUTO-GENERATED ==================================================== */