/* ============================================================
   DentalAnalytics · "Signal" Brand System
   Shared stylesheet for the brand guidelines document
   ============================================================ */
:root{
  /* Core */
  --navy:#0E1A40;       /* primary */
  --navy-700:#16245A;   /* raised surfaces on navy */
  --navy-900:#0A1330;   /* deepest */
  --lime:#B8FF3C;       /* signal accent */
  --lime-600:#9BE61E;   /* pressed / deeper */
  --lime-tint:#E8FFBA;  /* tints, highlights */

  /* Neutrals */
  --ink:#0E1A40;
  --slate:#56607A;      /* secondary text */
  --mist:#AEB6CC;       /* tertiary / lines on light */
  --paper:#F1F3FA;      /* light surface */
  --white:#FFFFFF;

  /* Data-viz extended (charts only) */
  --viz-azure:#4D8DFF;
  --viz-violet:#9E7BFF;
  --viz-coral:#FF7A66;

  --maxw:1080px;
  --r:16px;

  --font-display:'Sora', system-ui, sans-serif;
  --font-body:'Hanken Grotesk', system-ui, sans-serif;
  --font-mono:'IBM Plex Mono', ui-monospace, monospace;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

/* ---------- layout ---------- */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 40px}
section{padding:104px 0;border-top:1px solid rgba(14,26,64,.08)}
section:first-of-type{border-top:none}

.kicker{
  font:600 12px/1 var(--font-mono);
  letter-spacing:.22em;text-transform:uppercase;
  color:var(--lime-600);
}
.kicker.on-dark{color:var(--lime)}
.sec-num{
  font:600 12px/1 var(--font-mono);letter-spacing:.1em;
  color:var(--mist);
}
h2.title{
  font-family:var(--font-display);font-weight:800;
  font-size:clamp(30px,4.4vw,52px);letter-spacing:-.03em;line-height:1.02;
  margin:18px 0 0;
}
.lead{
  font-size:18px;line-height:1.6;color:var(--slate);
  max-width:620px;margin:20px 0 0;
}
.eyebrow-row{display:flex;align-items:baseline;justify-content:space-between;gap:20px}

/* ---------- side nav ---------- */
.sidenav{
  position:fixed;top:0;left:0;bottom:0;width:230px;
  background:var(--navy-900);color:#fff;padding:34px 26px;
  display:flex;flex-direction:column;gap:6px;z-index:50;
}
.sidenav .brandrow{display:flex;align-items:center;gap:10px;margin-bottom:30px}
.sidenav .brandrow b{font-family:var(--font-display);font-weight:800;font-size:15px;letter-spacing:-.02em}
.sidenav a{
  color:#A9B2CC;text-decoration:none;font-size:13.5px;font-weight:500;
  padding:8px 12px;border-radius:9px;display:flex;gap:10px;align-items:center;
  transition:all .16s ease;
}
.sidenav a .n{font:600 11px/1 var(--font-mono);color:#5C688C}
.sidenav a:hover{background:rgba(255,255,255,.06);color:#fff}
.sidenav a.active{background:var(--lime);color:var(--navy)}
.sidenav a.active .n{color:var(--navy)}
.sidenav .foot{margin-top:auto;font:500 11px/1.5 var(--font-mono);color:#5C688C;letter-spacing:.04em}

.page{margin-left:230px}

/* ---------- logo wordmark (text-based reusable) ---------- */
.wm{font-family:var(--font-display);font-weight:800;letter-spacing:-.04em;line-height:1}
.wm .b{color:currentColor}
.wm .a{color:var(--lime)}

/* ---------- cards / grid ---------- */
.grid{display:grid;gap:20px}
.card{
  background:var(--white);border-radius:var(--r);
  border:1px solid rgba(14,26,64,.09);overflow:hidden;
}
.pad{padding:30px}

/* swatches */
.swrow{display:grid;gap:14px}
.sw{border-radius:14px;padding:18px;min-height:128px;display:flex;flex-direction:column;justify-content:flex-end;position:relative}
.sw .nm{font:700 13px/1.2 var(--font-body)}
.sw .meta{font:500 11px/1.5 var(--font-mono);opacity:.7;margin-top:4px}
.sw.bordered{border:1px solid rgba(14,26,64,.12)}

/* misuse */
.dont{position:relative}
.dont::after{content:"✕";position:absolute;top:12px;right:14px;color:#FF7A66;font-weight:700;font-size:18px}
.do::after{content:"✓";position:absolute;top:12px;right:14px;color:var(--lime-600);font-weight:700;font-size:18px}

/* chips */
.chip{display:inline-flex;align-items:center;gap:8px;font:600 12px/1 var(--font-mono);
  letter-spacing:.04em;padding:8px 12px;border-radius:99px;background:var(--paper);color:var(--slate)}

.dark{background:var(--navy);color:#fff}
.dark .lead{color:#9FA9C4}
.muted{color:var(--slate)}
.mono{font-family:var(--font-mono)}

/* type scale rows */
.tspec{display:flex;align-items:baseline;gap:20px;padding:18px 0;border-top:1px dashed rgba(14,26,64,.14)}
.tspec:first-child{border-top:none}
.tspec .meta{font:500 11px/1.4 var(--font-mono);color:var(--mist);min-width:120px;flex-shrink:0}

a.tagref{color:var(--lime-600);text-decoration:none;font-weight:600}

@media (max-width:880px){
  .sidenav{display:none}
  .page{margin-left:0}
  .wrap{padding:0 24px}
}