/* ============================================================
   PASCAL LABS — "Signal" brand system
   ------------------------------------------------------------
   A refined, architectural software studio. Warm near-black
   ink on soft cream paper, with one loud signature: bright
   yellow. Thin geometric display type (Jost) echoing the
   wordmark; clean grotesk body; mono micro-labels. Signature
   motif: Pascal's-triangle of dots. Yellow lives in surfaces
   (buttons, bands, panels); deep gold carries accent text so
   nothing is ever illegible. Bold, never garish.
   ============================================================ */

:root{
  /* surfaces — warm cream paper */
  --bg:#f6f2e8;            /* warm paper */
  --bg-soft:#efe9da;       /* alt section / inset */
  --bg-tint:#fbf2cf;       /* faint yellow tint */
  --card:#fffefb;          /* raised module — whiter so it pops on cream */
  --ink-on-dark:#fbf8ef;

  /* ink — warm near-black */
  --ink:#26231a;           /* primary */
  --ink-soft:#4c4636;      /* secondary — darkened for contrast */
  --ink-dim:#857c69;       /* labels / annotations */
  --ink-faint:#b8af9b;     /* faintest */

  /* lines */
  --line:#ddd2bb;          /* hairline — stronger */
  --line-2:#cabd9f;        /* stronger hairline */
  --line-ink:#26231a;      /* ink hairline (used rarely, thin) */

  /* accent — bright yellow signature */
  --accent:#ffcb05;        /* bright yellow — SURFACES/fills/bars */
  --accent-bright:#ffd21e; /* on dark backgrounds */
  --accent-hover:#f0bd00;  /* button hover */
  --accent-deep:#8a6a00;   /* deep gold — accent TEXT on light (legible) */
  --accent-soft:#fdeeb0;   /* pale yellow tint surface */
  --on-accent:#26231a;     /* ink text that sits ON yellow */

  /* legacy blue aliases repointed: --blue now = deep gold for small marks/text on light */
  --blue:#8a6a00;
  --blue-deep:#6b4e00;
  --blue-soft:#fdeeb0;
  --blue-ink:#26231a;

  /* brand-mark accent — bright yellow logo mark */
  --mark:#ffcb05;          /* mark on light surfaces */
  --mark-bright:#ffd21e;   /* mark on dark surfaces (nav over hero / footer) */

  /* dark band (footer/cta) — warm near-black */
  --ink-band:#1c1a12;
  --ink-band-2:#2a271b;

  /* legacy aliases (kept so older inline refs don't break) */
  --paper:#f6f2e8;
  --paper-2:#efe9da;
  --clay:#ffcb05;
  --clay-soft:#fdeeb0;

  /* type */
  --display:'Jost','Century Gothic',system-ui,sans-serif;
  --serif:'Jost','Century Gothic',system-ui,sans-serif; /* legacy alias */
  --sans:'Hanken Grotesk',system-ui,-apple-system,sans-serif;
  --mono:'JetBrains Mono','Spline Sans Mono',ui-monospace,monospace;

  --maxw:1200px;
  --pad:clamp(20px,4.5vw,56px);
  --r:7px;
  --shadow:0 1px 2px rgba(38,35,26,.06), 0 18px 38px -22px rgba(38,35,26,.30);
  --shadow-lg:0 2px 5px rgba(38,35,26,.07), 0 40px 70px -34px rgba(38,35,26,.40);
}

*{box-sizing:border-box}
html{-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);
  font-size:16px;line-height:1.55;letter-spacing:-.003em;overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
::selection{background:var(--accent);color:var(--on-accent)}

/* ---------- type ---------- */
.serif,.display{font-family:var(--display);font-weight:400;letter-spacing:-.01em;line-height:1.04}
h1,h2,h3{font-family:var(--display);font-weight:400;letter-spacing:-.012em;margin:0}
.lead{font-size:clamp(17px,1.6vw,19px);line-height:1.62;color:var(--ink-soft)}

/* small numbered label — light structure, used sparingly */
.label{display:inline-flex;align-items:center;gap:10px;font-family:var(--mono);font-size:11.5px;
  font-weight:500;letter-spacing:.16em;text-transform:uppercase;color:var(--accent-deep)}
.label .n{color:var(--ink-dim)}
.label::before{content:"";width:20px;height:1px;background:var(--accent-deep);display:inline-block}
.label.plain{color:var(--ink-dim)}
.label.plain::before{background:var(--line-2)}

/* ---------- layout ---------- */
.wrap{max-width:var(--maxw);margin:0 auto;padding-inline:var(--pad)}
.section{padding-block:clamp(64px,9vw,124px)}
.rule{height:1px;background:var(--line);border:0;margin:0}
.sec-head{margin-bottom:clamp(40px,5.5vw,64px)}
.sec-head h2{font-size:clamp(32px,4.6vw,56px);margin-top:18px;font-weight:400;letter-spacing:-.018em;line-height:1.02}
.sec-head .lead{margin-top:18px;max-width:54ch}
.sec-flex{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;flex-wrap:wrap}
.acc{color:var(--accent-deep)}

/* ---------- nav ---------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:200;background:rgba(246,242,232,.82);
  backdrop-filter:blur(12px) saturate(1.1);border-bottom:1px solid var(--line);
  transition:background .3s ease,border-color .3s ease}
.nav-in{max-width:var(--maxw);margin:0 auto;padding:15px var(--pad);
  display:flex;align-items:center;justify-content:space-between;gap:24px}

/* brand wordmark, recreated to match the uploaded logo: hairline geometric Poiret One */
.brand{display:flex;align-items:center;gap:0;color:var(--ink);position:relative;flex:0 0 auto}
.brand .mk{display:inline-flex;align-items:center;color:#1d2230;flex:0 0 auto;position:relative;overflow:visible;margin-right:11px}
.brand .mk:has(.brand-logo[data-filled]){display:inline-grid}
.brand .mk svg{display:block}
.brand .mk .plmark{height:27px;width:auto}
/* user-swappable logo: hidden until a custom image is uploaded, then it
   replaces the drawn mark everywhere it appears */
.brand-logo,.footer-brand .brand-logo{display:none;width:100%;height:100%}
.brand-logo[data-filled]{display:block}
.mk:has(.brand-logo[data-filled]) .plmark{display:none}
.brand-logo::part(frame){background:transparent}
/* edit affordance (added by logo.js, editor-only) */
.logo-edit{position:absolute;left:14px;top:-8px;width:18px;height:18px;border-radius:50%;
  border:1px solid var(--line-2);background:var(--card);color:var(--ink);display:grid;place-items:center;
  cursor:pointer;z-index:10;padding:0;opacity:0;transition:opacity .15s,background .15s,color .15s;
  box-shadow:0 2px 7px rgba(38,35,26,.28)}
.brand:hover .logo-edit{opacity:1}
.logo-edit:hover{background:var(--accent);color:var(--on-accent);border-color:var(--accent)}
.brand .wm{font-family:'Poiret One','Jost',var(--display);font-weight:400;font-size:20px;letter-spacing:.20em;
  text-transform:uppercase;line-height:1;padding-left:.20em;white-space:nowrap;
  color:#1d2230;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  text-rendering:optimizeLegibility;animation:wmIn .8s cubic-bezier(.2,.7,.2,1) both}
@keyframes wmIn{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){.brand .wm{animation:none}}

.nav-links{display:flex;align-items:center;gap:30px}
.nav-links a{font-size:14.5px;color:var(--ink-soft);transition:color .18s;position:relative;letter-spacing:-.002em}
.nav-links a:hover{color:var(--ink)}
.nav-links a.active{color:var(--ink);font-weight:600}
.nav-links a.active::after{content:"";position:absolute;left:0;right:0;bottom:-21px;height:2px;background:var(--accent)}
.nav-cta{display:flex;align-items:center;gap:16px}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:9px;font-family:var(--sans);font-size:14.5px;
  font-weight:600;letter-spacing:-.005em;padding:12px 22px;border-radius:var(--r);cursor:pointer;
  border:1px solid transparent;transition:transform .12s,background .18s,color .18s,border-color .18s,box-shadow .18s;
  text-decoration:none;white-space:nowrap}
.btn:active{transform:translateY(1px)}
.btn-acc{background:var(--accent);color:var(--on-accent);box-shadow:0 1px 2px rgba(38,35,26,.12)}
.btn-acc:hover{background:var(--accent-hover)}
.btn-blue{background:var(--accent);color:var(--on-accent)}
.btn-blue:hover{background:var(--accent-hover)}
.btn-ghost{border-color:var(--line-2);color:var(--ink);background:var(--card)}
.btn-ghost:hover{border-color:var(--ink-dim);background:var(--bg-soft)}
.btn .arr{transition:transform .18s}
.btn:hover .arr{transform:translateX(3px)}
.tlink{font-size:14.5px;font-weight:600;color:var(--accent-deep);display:inline-flex;align-items:center;gap:7px}
.btn-wa{background:var(--card);color:var(--ink);border-color:var(--line-2)}
.btn-wa:hover{background:var(--bg-soft);border-color:var(--ink-dim);color:var(--ink)}
.btn-wa svg{width:18px;height:18px;color:#25d366}
.tlink .arr{transition:transform .18s}
.tlink:hover .arr{transform:translateX(3px)}

/* ---------- footer ---------- */
.footer{border-top:1px solid var(--line);background:var(--ink-band);color:var(--ink-on-dark);
  padding-block:clamp(52px,7vw,84px)}
.footer .wrap{max-width:var(--maxw)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:44px;align-items:start}
.footer h4{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;
  color:rgba(247,248,250,.5);margin:0 0 18px;font-weight:500}
.footer ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px}
.footer ul a{color:rgba(247,248,250,.78);font-size:15px;transition:color .18s}
.footer ul a:hover{color:#fff}
.footer .footer-brand{display:flex;align-items:center;gap:0;margin:0 0 18px;color:#fff}
.footer .footer-brand .mk{display:inline-flex;align-items:center;margin-right:12px;color:#F8F7F4}
.footer .footer-brand .mk:has(.brand-logo[data-filled]){display:inline-grid}
.footer .footer-brand .mk .plmark{height:34px;width:auto;display:block}
.footer .footer-brand .wm{font-family:'Poiret One','Jost',var(--display);font-weight:400;font-size:24px;
  letter-spacing:.18em;text-transform:uppercase;padding-left:.18em;line-height:1}
.footer-big{font-family:var(--display);font-weight:300;font-size:clamp(30px,4vw,46px);line-height:1;margin:0 0 18px;color:#fff;letter-spacing:.02em}
.footer p{color:rgba(247,248,250,.7)}
.footer-base{display:flex;justify-content:space-between;align-items:center;gap:20px;
  margin-top:clamp(44px,6vw,68px);padding-top:24px;border-top:1px solid rgba(247,248,250,.12);
  font-family:var(--mono);font-size:11.5px;color:rgba(247,248,250,.5);flex-wrap:wrap;letter-spacing:.04em}

@media(max-width:820px){
  .nav-links{display:none}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:520px){ .footer-grid{grid-template-columns:1fr} }