/* =========================================================
   Mission Bizlinks — Design System
   Palette   : Ink Navy #0F1B2D · Paper #F7F9FB · Charcoal #16202B
               Circuit Teal #1FA6A0 · Signal Amber #E8A33D · Slate #5B6B7C
   Display   : 'Space Grotesk'  |  Body: 'IBM Plex Sans'  |  Mono: 'IBM Plex Mono'
   Motif     : node & link (network graph) — used as section divider + hero art
   ========================================================= */

:root{
  --ink:#0F1B2D;
  --ink-soft:#152438;
  --paper:#F7F9FB;
  --paper-dim:#EDF1F4;
  --charcoal:#16202B;
  --slate:#5B6B7C;
  --slate-light:#8A97A5;
  --teal:#1FA6A0;
  --teal-deep:#158E89;
  --amber:#E8A33D;
  --line:#DCE3E8;
  --line-dark:#26374D;

  --font-display:'Space Grotesk', 'Helvetica Neue', Arial, sans-serif;
  --font-body:'IBM Plex Sans', 'Helvetica Neue', Arial, sans-serif;
  --font-mono:'IBM Plex Mono', 'Courier New', monospace;

  --max:1180px;
  --radius:2px;
  --dur:.5s;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--charcoal);
  background:var(--paper);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:600;
  line-height:1.15;
  margin:0 0 .5em;
  letter-spacing:-.01em;
}
p{margin:0 0 1em;color:var(--slate);}
.container{max-width:var(--max);margin:0 auto;padding:0 28px;}

:focus-visible{outline:2px solid var(--teal);outline-offset:3px;}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;scroll-behavior:auto !important;}
}

/* ---------- eyebrow / mono labels ---------- */
.eyebrow{
  font-family:var(--font-mono);
  font-size:.78rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--teal-deep);
  display:inline-flex;
  align-items:center;
  gap:.55em;
  margin-bottom:.9em;
}
.eyebrow::before{
  content:"";
  width:7px;height:7px;
  border-radius:50%;
  background:var(--teal);
  box-shadow:0 0 0 3px rgba(31,166,160,.18);
}
.eyebrow--light{color:#8FE3DE;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:.6em;
  font-family:var(--font-mono);
  font-size:.85rem;
  letter-spacing:.03em;
  padding:.85em 1.5em;
  border-radius:var(--radius);
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
}
.btn:hover{transform:translateY(-2px);}
.btn-primary{background:var(--teal);color:#fff;}
.btn-primary:hover{background:var(--teal-deep);}
.btn-ghost{border-color:var(--line-dark);color:var(--paper);}
.btn-ghost:hover{border-color:var(--teal);color:var(--teal);}
.btn-outline{border-color:var(--charcoal);color:var(--charcoal);}
.btn-outline:hover{border-color:var(--teal);color:var(--teal-deep);}
.btn-arrow::after{content:"→";transition:transform .2s ease;}
.btn-arrow:hover::after{transform:translateX(3px);}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(247,249,251,.92);
  backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid var(--line);
}
.nav{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 0;
}
.logo{
  font-family:var(--font-display);
  font-weight:700;
  font-size:1.15rem;
  display:flex;align-items:center;gap:.5em;
  color:var(--charcoal);
}
.logo .node-mark{width:22px;height:22px;flex:none;}
.logo b{color:var(--teal-deep);}
.nav-links{display:flex;gap:2.1rem;align-items:center;}
.nav-links a{
  font-family:var(--font-mono);
  font-size:.82rem;
  letter-spacing:.03em;
  color:var(--slate);
  position:relative;
  padding:4px 0;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:-2px;
  width:0;height:1px;background:var(--teal);
  transition:width .25s ease;
}
.nav-links a:hover,.nav-links a[aria-current="page"]{color:var(--charcoal);}
.nav-links a:hover::after,.nav-links a[aria-current="page"]::after{width:100%;}
.nav-cta{margin-left:.5rem;}
.nav-toggle{display:none;background:none;border:none;cursor:pointer;padding:6px;}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--charcoal);margin:5px 0;transition:transform .25s ease, opacity .25s ease;}

@media (max-width:880px){
  .nav-toggle{display:block;}
  .nav-links{
    position:fixed;inset:64px 0 0 0;background:var(--paper);
    flex-direction:column;align-items:flex-start;gap:1.6rem;
    padding:2.2rem 28px;
    transform:translateY(-8px);opacity:0;pointer-events:none;
    transition:opacity .25s ease, transform .25s ease;
    border-top:1px solid var(--line);
  }
  .nav-links.open{opacity:1;transform:translateY(0);pointer-events:auto;}
  .nav-links a{font-size:1rem;}
}

/* ---------- hero ---------- */
.hero{
  position:relative;
  background:var(--ink);
  color:var(--paper);
  overflow:hidden;
  padding:96px 0 108px;
}
.hero .container{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;
}
.hero h1{
  font-size:clamp(2.2rem,4.4vw,3.4rem);
  color:#fff;
  max-width:14ch;
}
.hero h1 em{color:var(--teal);font-style:normal;}
.hero p.lead{color:#B7C3D1;font-size:1.08rem;max-width:46ch;}
.hero-actions{display:flex;gap:1rem;margin-top:1.8rem;flex-wrap:wrap;}
.hero-art{position:relative;height:380px;}
#node-canvas{width:100%;height:100%;display:block;}
.page-hero{
  background:var(--ink);color:var(--paper);padding:76px 0 64px;position:relative;overflow:hidden;
}
.page-hero h1{color:#fff;font-size:clamp(1.9rem,3.6vw,2.7rem);max-width:20ch;}
.page-hero p{color:#B7C3D1;max-width:56ch;font-size:1.02rem;}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb{
  font-family:var(--font-mono);font-size:.78rem;color:#8FE3DE;letter-spacing:.05em;
  margin-bottom:1rem;
}
.breadcrumb a{color:#8FE3DE;opacity:.8;}
.breadcrumb a:hover{opacity:1;text-decoration:underline;}

/* ---------- link-divider (signature) ---------- */
.link-divider{
  display:flex;align-items:center;gap:14px;
  margin:0 auto;max-width:var(--max);padding:0 28px;
}
.link-divider .dot{width:6px;height:6px;border-radius:50%;background:var(--teal);flex:none;}
.link-divider .line{height:1px;flex:1;background:linear-gradient(90deg,var(--line) 0%, var(--line) 100%);}
.link-divider.on-dark .line{background:var(--line-dark);}
.link-divider.on-dark .dot{background:var(--teal);}

/* ---------- sections ---------- */
section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:640px;margin-bottom:3rem;}
.section-head h2{font-size:clamp(1.6rem,2.8vw,2.2rem);}
.bg-ink{background:var(--ink);color:var(--paper);}
.bg-ink h2,.bg-ink h3{color:#fff;}
.bg-ink p{color:#AEBBC9;}
.bg-dim{background:var(--paper-dim);}

/* ---------- cards / grids ---------- */
.grid{display:grid;gap:1.6rem;}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-2{grid-template-columns:repeat(2,1fr);}
@media (max-width:920px){.grid-3{grid-template-columns:repeat(2,1fr);}}
@media (max-width:640px){.grid-3,.grid-2{grid-template-columns:1fr;}}

.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:2rem 1.8rem;transition:border-color .25s ease, transform .25s ease, box-shadow .25s ease;
}
.card:hover{border-color:var(--teal);transform:translateY(-4px);box-shadow:0 18px 34px -22px rgba(15,27,45,.35);}
.card .idx{font-family:var(--font-mono);font-size:.75rem;color:var(--teal-deep);letter-spacing:.08em;}
.card h3{font-size:1.15rem;margin-top:.5em;}
.card p{font-size:.94rem;margin-bottom:0;}
.card ul{margin-top:.9em;}
.card ul li{
  font-size:.86rem;color:var(--slate);padding-left:1.1em;position:relative;margin-bottom:.4em;
}
.card ul li::before{content:"–";position:absolute;left:0;color:var(--teal);}

.card--dark{background:var(--ink-soft);border-color:var(--line-dark);}
.card--dark h3{color:#fff;}
.card--dark p{color:#AEBBC9;}

/* process steps (real sequence -> numbering justified) */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative;}
.step{position:relative;padding:0 1.4rem 0 0;}
.step .num{font-family:var(--font-mono);font-size:.8rem;color:var(--teal-deep);}
.step h4{margin:.6em 0 .4em;font-size:1.02rem;}
.step p{font-size:.88rem;}
.step::after{
  content:"";position:absolute;top:6px;right:-8px;width:16px;height:1px;background:var(--line-dark);
}
.step:last-child::after{display:none;}
@media (max-width:900px){
  .steps{grid-template-columns:1fr;gap:1.8rem;}
  .step::after{display:none;}
}

/* stats */
.stat-row{display:flex;gap:3rem;flex-wrap:wrap;}
.stat b{font-family:var(--font-display);font-size:2rem;display:block;color:#fff;}
.stat span{font-family:var(--font-mono);font-size:.78rem;color:#8FE3DE;letter-spacing:.05em;}

/* CTA band */
.cta-band{
  background:var(--teal);color:#032826;padding:60px 0;text-align:center;
}
.cta-band h2{color:#032826;}
.cta-band .btn-outline{border-color:#032826;color:#032826;}
.cta-band .btn-outline:hover{border-color:var(--ink);color:var(--ink);}

/* forms */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.2rem;}
.form-grid .full{grid-column:1/-1;}
@media (max-width:640px){.form-grid{grid-template-columns:1fr;}}
label{
  font-family:var(--font-mono);font-size:.76rem;letter-spacing:.05em;
  text-transform:uppercase;color:var(--slate);display:block;margin-bottom:.5em;
}
input,textarea,select{
  width:100%;font-family:var(--font-body);font-size:.95rem;
  padding:.85em 1em;border:1px solid var(--line);border-radius:var(--radius);
  background:#fff;color:var(--charcoal);transition:border-color .2s ease;
}
input:focus,textarea:focus,select:focus{border-color:var(--teal);outline:none;}
textarea{resize:vertical;min-height:130px;}
.form-note{font-size:.82rem;color:var(--slate-light);margin-top:.6em;}
.form-status{font-family:var(--font-mono);font-size:.85rem;margin-top:1rem;display:none;}
.form-status.ok{display:block;color:var(--teal-deep);}
.form-status.err{display:block;color:#B23A3A;}

/* contact info list */
.info-list li{
  display:flex;gap:.9rem;padding:1.1rem 0;border-bottom:1px solid var(--line-dark);
}
.info-list li:last-child{border-bottom:none;}
.info-list .k{font-family:var(--font-mono);font-size:.76rem;color:#8FE3DE;letter-spacing:.05em;min-width:110px;}
.info-list .v{color:#DDE5EC;font-size:.95rem;}
.info-list a.v{color:#DDE5EC;}
.info-list a.v:hover{color:var(--teal);}

/* table (services matrix) */
.matrix{width:100%;border-collapse:collapse;font-size:.92rem;}
.matrix th,.matrix td{padding:.9em 1em;text-align:left;border-bottom:1px solid var(--line);}
.matrix th{font-family:var(--font-mono);font-size:.75rem;letter-spacing:.06em;text-transform:uppercase;color:var(--slate);}

/* value / about tiles */
.value-tile{padding-left:1.4rem;border-left:2px solid var(--teal);}
.value-tile h4{margin-bottom:.35em;}
.value-tile p{font-size:.92rem;margin-bottom:0;}

/* timeline (about) */
.timeline{position:relative;padding-left:28px;}
.timeline::before{content:"";position:absolute;left:6px;top:6px;bottom:6px;width:1px;background:var(--line);}
.timeline-item{position:relative;padding-bottom:2.1rem;}
.timeline-item::before{
  content:"";position:absolute;left:-28px;top:4px;width:9px;height:9px;border-radius:50%;
  background:var(--teal);box-shadow:0 0 0 3px rgba(31,166,160,.16);
}
.timeline-item .yr{font-family:var(--font-mono);font-size:.78rem;color:var(--teal-deep);}

/* portfolio placeholder cards */
.placeholder-note{
  font-family:var(--font-mono);font-size:.78rem;color:var(--amber);
  border:1px dashed var(--amber);padding:.6em .9em;border-radius:var(--radius);
  display:inline-block;margin-bottom:2rem;
}

/* careers listing */
.job{
  display:flex;justify-content:space-between;align-items:center;gap:1rem;flex-wrap:wrap;
  padding:1.6rem 0;border-bottom:1px solid var(--line);
}
.job h3{margin:0 0 .3em;font-size:1.08rem;}
.job .meta{font-family:var(--font-mono);font-size:.78rem;color:var(--slate);}

/* footer */
.site-footer{background:var(--ink);color:#AEBBC9;padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:2.4rem;margin-bottom:3rem;}
.footer-grid h5{
  font-family:var(--font-mono);font-size:.76rem;letter-spacing:.08em;text-transform:uppercase;
  color:#8FE3DE;margin-bottom:1.1em;
}
.footer-grid a{display:block;color:#AEBBC9;font-size:.9rem;margin-bottom:.7em;}
.footer-grid a:hover{color:var(--teal);}
.footer-brand p{color:#8494A6;font-size:.9rem;max-width:32ch;}
.footer-bottom{
  border-top:1px solid var(--line-dark);padding-top:1.6rem;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:.8rem;
  font-family:var(--font-mono);font-size:.76rem;color:#66788C;
}
@media (max-width:820px){
  .footer-grid{grid-template-columns:1fr 1fr;}
  .hero .container{grid-template-columns:1fr;}
  .hero-art{height:260px;order:-1;}
}

/* 404 */
.notfound{min-height:60vh;display:flex;align-items:center;}
.notfound h1{font-size:clamp(3rem,10vw,6rem);color:var(--teal-deep);}

/* animations */
.reveal{opacity:0;transform:translateY(14px);transition:opacity var(--dur) ease, transform var(--dur) ease;}
.reveal.in{opacity:1;transform:translateY(0);}