/* ============================================================
   Colorado Ad Tech & Mar Tech Community — Stylesheet
   Palette inspired by the COATMC logo + the Colorado flag.
   ============================================================ */
:root{
  --navy:#15395B;        /* deep Colorado-sky navy (logo background) */
  --navy-dark:#0E2A45;
  --red:#C8102E;         /* Colorado red (the "C") */
  --gold:#F4C430;        /* Colorado gold (center sun) */
  --blue:#2E9BD6;        /* circuit / tech blue */
  --blue-soft:#E6F2FA;
  --cream:#F8F4EC;       /* warm off-white background */
  --cream-2:#FFFFFF;
  --ink:#1C2B36;         /* body text */
  --muted:#5B6B77;
  --border:#E3DCCF;
  --shadow:0 10px 30px rgba(21,57,91,.10);
  --shadow-sm:0 4px 14px rgba(21,57,91,.08);
  --max:1140px;
  --radius:14px;
  --font-head:'Poppins',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  --font-body:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-body);
  background:var(--cream);
  color:var(--ink);
  line-height:1.7;
  font-size:17px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--red);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{font-family:var(--font-head);line-height:1.2;color:var(--navy);font-weight:700}
.container{max-width:var(--max);margin:0 auto;padding:0 1.5rem}
.eyebrow{
  text-transform:uppercase;letter-spacing:.16em;font-size:.78rem;font-weight:700;
  color:var(--blue);font-family:var(--font-head);margin-bottom:.6rem;display:block
}
.section{padding:5rem 0}
.section--tight{padding:3.5rem 0}
.center{text-align:center}
.lead{font-size:1.18rem;color:var(--muted);max-width:680px}
.center .lead{margin-left:auto;margin-right:auto}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.5rem;
  font-family:var(--font-head);font-weight:600;font-size:1rem;
  padding:.85rem 1.6rem;border-radius:50px;border:2px solid transparent;
  cursor:pointer;transition:transform .15s ease,box-shadow .15s ease,background .15s;
  text-decoration:none;
}
.btn:hover{text-decoration:none;transform:translateY(-2px)}
.btn-primary{background:var(--red);color:#fff;box-shadow:0 6px 18px rgba(200,16,46,.28)}
.btn-primary:hover{background:#a90d26;color:#fff}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff}
.btn-navy{background:var(--navy);color:#fff}
.btn-navy:hover{background:var(--navy-dark);color:#fff}

/* ---------- Nav ---------- */
.nav{position:sticky;top:0;z-index:50;background:rgba(248,244,236,.92);
  backdrop-filter:blur(8px);border-bottom:1px solid var(--border)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:74px}
.brand{display:flex;align-items:center;gap:.7rem;font-family:var(--font-head);
  font-weight:700;color:var(--navy);font-size:1.05rem}
.brand:hover{text-decoration:none}
.brand img{width:44px;height:44px;border-radius:50%;box-shadow:var(--shadow-sm)}
.brand .brand-sub{display:block;font-size:.72rem;font-weight:500;color:var(--muted);letter-spacing:.02em}
.nav-links{display:flex;align-items:center;gap:2rem;list-style:none}
.nav-links a{color:var(--navy);font-weight:500;font-size:.96rem}
.nav-links a:hover{color:var(--red);text-decoration:none}
.nav-links a.active{color:var(--red)}
.nav-cta{margin-left:.5rem}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;flex-direction:column;gap:5px;padding:6px}
.nav-toggle span{width:26px;height:2px;background:var(--navy);border-radius:2px;transition:.3s}
.mobile-menu{display:none;flex-direction:column;background:var(--navy);padding:1rem 1.5rem 1.4rem}
.mobile-menu.open{display:flex}
.mobile-menu a{color:#fff;padding:.7rem 0;border-bottom:1px solid rgba(255,255,255,.1);font-weight:500}
.mobile-menu a:last-child{border-bottom:0}

/* ---------- Hero ---------- */
.hero{position:relative;background:
  linear-gradient(160deg,var(--navy) 0%,var(--navy-dark) 100%);
  color:#fff;overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 80% 20%,rgba(46,155,214,.25),transparent 45%),
  radial-gradient(circle at 15% 90%,rgba(200,16,46,.18),transparent 40%);pointer-events:none}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.2fr .8fr;
  gap:3rem;align-items:center;padding:5rem 0}
.hero h1{color:#fff;font-size:clamp(2.1rem,4.6vw,3.4rem);letter-spacing:-.01em}
.hero h1 .accent{color:var(--gold)}
.hero p{font-size:1.2rem;color:rgba(255,255,255,.85);margin:1.3rem 0 2rem;max-width:560px}
.hero-badge{display:inline-flex;align-items:center;gap:.5rem;background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.2);padding:.4rem .9rem;border-radius:50px;
  font-size:.82rem;font-weight:600;letter-spacing:.04em;margin-bottom:1.4rem}
.hero-badge .dot{width:8px;height:8px;border-radius:50%;background:var(--gold)}
.hero-actions{display:flex;gap:1rem;flex-wrap:wrap}
.hero-art{display:flex;justify-content:center}
.hero-art img{width:min(320px,80%);height:auto;border-radius:50%;
  box-shadow:0 20px 60px rgba(0,0,0,.35);border:6px solid rgba(255,255,255,.08)}
/* mountain ridge divider */
.ridge{display:block;width:100%;height:60px;margin-top:-1px}

/* ---------- Stat bar ---------- */
.stats{background:var(--cream-2);border-bottom:1px solid var(--border)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;padding:2.2rem 0}
.stat{text-align:center}
.stat .num{font-family:var(--font-head);font-weight:700;font-size:2rem;color:var(--red)}
.stat .lbl{font-size:.85rem;color:var(--muted);font-weight:500}

/* ---------- Cards / grid ---------- */
.grid{display:grid;gap:1.6rem}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{background:var(--cream-2);border:1px solid var(--border);border-radius:var(--radius);
  padding:2rem;box-shadow:var(--shadow-sm);transition:transform .18s,box-shadow .18s}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.card .ico{width:54px;height:54px;border-radius:12px;display:flex;align-items:center;
  justify-content:center;font-size:1.5rem;margin-bottom:1rem;background:var(--blue-soft)}
.card h3{font-size:1.2rem;margin-bottom:.5rem}
.card p{color:var(--muted);font-size:.98rem}

/* value pill list */
.values{list-style:none;display:grid;gap:1rem}
.values li{display:flex;gap:.9rem;align-items:flex-start;background:var(--cream-2);
  border:1px solid var(--border);border-left:4px solid var(--gold);border-radius:10px;padding:1.1rem 1.3rem}
.values li strong{color:var(--navy);font-family:var(--font-head)}
.values .check{color:var(--blue);font-weight:700;font-size:1.2rem;line-height:1.4}

/* ---------- Section header ---------- */
.sec-head{max-width:720px;margin-bottom:2.6rem}
.center.sec-head{margin-left:auto;margin-right:auto}
.sec-head h2{font-size:clamp(1.7rem,3.2vw,2.4rem)}
.sec-head p{margin-top:.8rem;color:var(--muted);font-size:1.08rem}

/* ---------- Events ---------- */
.event{display:grid;grid-template-columns:120px 1fr auto;gap:1.5rem;align-items:center;
  background:var(--cream-2);border:1px solid var(--border);border-radius:var(--radius);
  padding:1.4rem 1.6rem;box-shadow:var(--shadow-sm);margin-bottom:1.1rem;transition:transform .15s}
.event:hover{transform:translateX(4px)}
.event.past{opacity:.72}
.date-chip{text-align:center;background:var(--navy);color:#fff;border-radius:12px;padding:.7rem .4rem}
.date-chip .mo{display:block;font-family:var(--font-head);font-size:.8rem;letter-spacing:.1em;
  text-transform:uppercase;color:var(--gold)}
.date-chip .day{display:block;font-family:var(--font-head);font-size:1.8rem;font-weight:700;line-height:1}
.date-chip .yr{display:block;font-size:.72rem;opacity:.7}
.event-body h3{font-size:1.22rem;margin-bottom:.25rem}
.event-meta{color:var(--muted);font-size:.92rem;display:flex;flex-wrap:wrap;gap:.4rem 1.1rem;margin-top:.4rem}
.event-meta span{display:inline-flex;align-items:center;gap:.35rem}
.tag{display:inline-block;font-size:.72rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase;
  padding:.2rem .6rem;border-radius:50px;margin-bottom:.5rem}
.tag-up{background:var(--blue-soft);color:var(--blue)}
.tag-feat{background:#FDEEC2;color:#9a7400}
.tag-past{background:#ECECEC;color:#777}
.event-cta{white-space:nowrap}

/* featured event banner */
.feature{background:linear-gradient(135deg,var(--navy),var(--navy-dark));color:#fff;
  border-radius:18px;padding:2.6rem;position:relative;overflow:hidden}
.feature::after{content:"";position:absolute;right:-40px;top:-40px;width:220px;height:220px;
  background:radial-gradient(circle,rgba(244,196,48,.25),transparent 70%)}
.feature .eyebrow{color:var(--gold)}
.feature h3{color:#fff;font-size:1.8rem;margin:.3rem 0 .8rem;position:relative}
.feature p{color:rgba(255,255,255,.85);position:relative}
.feature .meta{display:flex;gap:1.5rem;flex-wrap:wrap;margin:1.2rem 0 1.6rem;position:relative}
.feature .meta b{color:var(--gold);font-family:var(--font-head)}

/* ---------- Photo gallery ---------- */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}
.gallery figure{position:relative;border-radius:12px;overflow:hidden;box-shadow:var(--shadow-sm);
  aspect-ratio:4/3;background:var(--navy)}
.gallery img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.gallery figure:hover img{transform:scale(1.05)}
.gallery figcaption{position:absolute;left:0;right:0;bottom:0;padding:.8rem 1rem;color:#fff;
  font-size:.85rem;background:linear-gradient(transparent,rgba(14,42,69,.85))}
.photo-placeholder{display:flex;flex-direction:column;align-items:center;justify-content:center;
  height:100%;color:rgba(255,255,255,.6);text-align:center;padding:1rem;gap:.4rem}
.photo-placeholder .mtn{font-size:2rem}

/* full-width event banner image */
.banner-strip{width:100%;height:220px;object-fit:cover;display:block}

/* ---------- Forms ---------- */
.form-wrap{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:start}
.contact-form{background:var(--cream-2);border:1px solid var(--border);border-radius:var(--radius);
  padding:2.4rem;box-shadow:var(--shadow-sm)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.field{margin-bottom:1.2rem}
.field label{display:block;font-weight:600;font-size:.9rem;margin-bottom:.4rem;color:var(--navy);font-family:var(--font-head)}
.field input,.field select,.field textarea{width:100%;padding:.8rem 1rem;border:1.5px solid var(--border);
  border-radius:10px;font-family:var(--font-body);font-size:1rem;background:var(--cream);color:var(--ink);transition:border-color .15s}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--blue)}
.field textarea{min-height:140px;resize:vertical}
.contact-aside .card{margin-bottom:1.2rem}
.contact-aside h3{display:flex;align-items:center;gap:.5rem}

/* ---------- CTA band ---------- */
.cta-band{background:var(--red);color:#fff;text-align:center;border-radius:20px;padding:3.2rem 2rem;margin:0 auto}
.cta-band h2{color:#fff;font-size:clamp(1.6rem,3vw,2.2rem)}
.cta-band p{color:rgba(255,255,255,.9);max-width:560px;margin:.8rem auto 1.6rem}

/* ---------- Footer ---------- */
.footer{background:var(--navy-dark);color:rgba(255,255,255,.75);padding:3.5rem 0 2rem}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:2.5rem;margin-bottom:2.5rem}
.footer .brand{color:#fff}
.footer .brand .brand-sub{color:rgba(255,255,255,.6)}
.footer h4{color:#fff;font-size:.95rem;margin-bottom:1rem;letter-spacing:.04em}
.footer ul{list-style:none;display:grid;gap:.6rem}
.footer a{color:rgba(255,255,255,.75);font-size:.92rem}
.footer a:hover{color:var(--gold);text-decoration:none}
.footer-tagline{margin-top:1rem;font-size:.92rem;max-width:320px;color:rgba(255,255,255,.65)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:1.5rem;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem;font-size:.82rem;color:rgba(255,255,255,.5)}
.footer-bottom a{color:rgba(255,255,255,.6)}

/* ---------- Misc ---------- */
.prose p{margin-bottom:1.2rem;color:var(--ink)}
.prose p.muted{color:var(--muted)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:center}
.callout{background:var(--blue-soft);border-radius:var(--radius);padding:1.6rem 1.8rem;border-left:4px solid var(--blue)}
.team-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.4rem}
.team-card{text-align:center;background:var(--cream-2);border:1px solid var(--border);
  border-radius:var(--radius);padding:1.6rem 1rem;box-shadow:var(--shadow-sm)}
.team-card .avatar{width:72px;height:72px;border-radius:50%;margin:0 auto .8rem;
  background:linear-gradient(135deg,var(--navy),var(--blue));color:#fff;display:flex;
  align-items:center;justify-content:center;font-family:var(--font-head);font-weight:700;font-size:1.4rem}
.team-card h4{font-size:1.02rem;margin-bottom:.15rem}
.team-card p{font-size:.82rem;color:var(--muted)}

/* ---------- Responsive ---------- */
@media(max-width:900px){
  .hero-inner{grid-template-columns:1fr;gap:2rem;text-align:center;padding:3.5rem 0}
  .hero p{margin-left:auto;margin-right:auto}
  .hero-actions{justify-content:center}
  .hero-art{order:-1}
  .hero-art img{width:200px}
  .grid-3,.grid-2,.team-grid,.gallery{grid-template-columns:1fr 1fr}
  .stats-grid{grid-template-columns:1fr 1fr;gap:1.4rem}
  .form-wrap,.split{grid-template-columns:1fr;gap:2rem}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:flex}
  .grid-3,.grid-2,.team-grid,.gallery,.footer-grid,.form-row{grid-template-columns:1fr}
  .event{grid-template-columns:70px 1fr;gap:1rem}
  .event-cta{grid-column:2;justify-self:start;margin-top:.4rem}
  .date-chip .day{font-size:1.4rem}
  .section{padding:3.2rem 0}
}