:root{
  --navy:#0B1220;
  --navy-2:#101C30;
  --ink:#101828;
  --muted:#5B6472;
  --line:#E4E7EC;
  --bg:#FAFAFA;
  --card:#FFFFFF;
  --accent:#0EA5A5;
  --accent-dark:#0B8484;
  --accent-tint:#E6F7F6;
  --radius:10px;
  --maxw:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* Header */
header.site{
  background:var(--navy);
  border-bottom:1px solid rgba(255,255,255,.08);
  position:sticky;top:0;z-index:50;
}
header.site .wrap{
  display:flex;align-items:center;justify-content:space-between;
  height:76px;
}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:18px;letter-spacing:.2px}
.brand .mark{flex:0 0 auto}
.brand small{
  display:inline-block;margin-left:6px;padding:2px 8px;border-radius:20px;
  background:var(--accent);color:#04211f;font-size:11px;font-weight:800;letter-spacing:.6px;
}
nav.primary{display:flex;align-items:center;gap:28px}
nav.primary a{
  color:#C7CDD8;font-size:14.5px;font-weight:500;
  transition:color .15s ease;
}
nav.primary a:hover,nav.primary a.active{color:#fff}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 20px;border-radius:8px;
  font-weight:600;font-size:14.5px;
  border:1px solid transparent;cursor:pointer;
}
.btn-accent{background:var(--accent);color:#04211f}
.btn-accent:hover{background:var(--accent-dark);color:#fff}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.28)}
.btn-ghost:hover{border-color:#fff}
.btn-dark{background:var(--navy);color:#fff}
.btn-dark:hover{background:var(--navy-2)}
nav.primary .btn{padding:9px 16px}

.nav-toggle-checkbox{display:none}
.nav-toggle-btn{
  display:none;flex-direction:column;justify-content:center;align-items:flex-end;gap:5px;
  width:32px;height:32px;padding:0;background:none;border:none;cursor:pointer;
}
.nav-toggle-btn span{display:block;width:24px;height:2px;background:#fff;border-radius:2px;transition:transform .2s ease,opacity .2s ease,width .2s ease}
.nav-toggle-checkbox:checked ~ .nav-toggle-btn span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle-checkbox:checked ~ .nav-toggle-btn span:nth-child(2){opacity:0}
.nav-toggle-checkbox:checked ~ .nav-toggle-btn span:nth-child(3){transform:translateY(-7px) rotate(-45deg);width:24px}

/* Hero */
.hero{
  position:relative;
  overflow:hidden;
  background:
    radial-gradient(1100px 480px at 85% -10%, rgba(14,165,165,.16), transparent 60%),
    var(--navy);
  color:#fff;
  padding:96px 0 88px;
}
.hero .wrap{position:relative;z-index:1}
.hero .cover-mark{
  position:absolute;top:50%;right:-60px;transform:translateY(-50%);
  width:420px;max-width:40vw;opacity:.08;z-index:0;pointer-events:none;
}
.hero-chalkboard{
  --hero-img:url('assets/hero-chalkboard.jpg');
  background:
    linear-gradient(90deg, rgba(11,18,32,.94) 0%, rgba(11,18,32,.82) 38%, rgba(11,18,32,.55) 68%, rgba(11,18,32,.72) 100%),
    var(--hero-img);
  background-size:cover;
  background-position:center;
}
.hero-chalkboard-about{--hero-img:url('assets/hero-chalkboard-about.jpg');}
.hero-chalkboard-services{--hero-img:url('assets/hero-chalkboard-services.jpg');}
.hero-chalkboard-insights{--hero-img:url('assets/hero-chalkboard-insights.jpg');}
.hero-chalkboard-bd-platform{--hero-img:url('assets/hero-chalkboard-bd-platform.jpg');}
.hero-chalkboard-proposal-dev{--hero-img:url('assets/hero-chalkboard-proposal-dev.jpg');}
.hero-chalkboard-roadmap{--hero-img:url('assets/hero-chalkboard-roadmap.jpg');}
.hero-chalkboard-roi{--hero-img:url('assets/hero-chalkboard-roi.jpg');}
.hero-chalkboard-book{--hero-img:url('assets/hero-chalkboard-book.jpg');}
.hero-chalkboard-contact{--hero-img:url('assets/hero-chalkboard-contact.jpg');}
.hero-chalkboard-privacy{--hero-img:url('assets/hero-chalkboard-privacy.jpg');}
.hero-chalkboard-thanks{--hero-img:url('assets/hero-chalkboard-thanks.jpg');}
/* Ambient hero video (Home). The video sits under a ::after overlay carrying the
   same navy gradient as the static background, which remains the fallback/poster. */
.hero-video{
  position:absolute;inset:0;width:100%;height:100%;
  object-fit:cover;z-index:0;pointer-events:none;
}
.hero-has-video::after{
  content:'';position:absolute;inset:0;z-index:0;pointer-events:none;
  background:linear-gradient(90deg, rgba(11,18,32,.94) 0%, rgba(11,18,32,.82) 38%, rgba(11,18,32,.55) 68%, rgba(11,18,32,.72) 100%);
}
@media (prefers-reduced-motion: reduce){
  .hero-video{display:none}
}
.hero .eyebrow{
  color:var(--accent);font-weight:700;font-size:13px;letter-spacing:1.4px;text-transform:uppercase;
  margin-bottom:18px;
}
.hero h1{
  font-size:44px;line-height:1.15;margin:0 0 22px;max-width:820px;font-weight:800;letter-spacing:-.5px;
}
.hero p.lead{
  font-size:18px;color:#C7CDD8;max-width:640px;margin:0 0 34px;
}
.hero .cta-row{display:flex;gap:14px;flex-wrap:wrap}

/* Sections */
section{padding:76px 0}
section.tight{padding:56px 0}
.section-head{max-width:680px;margin:0 0 44px}
.eyebrow-sm{color:var(--accent-dark);font-weight:700;font-size:12.5px;letter-spacing:1.2px;text-transform:uppercase;margin-bottom:12px}
h2.section-title{font-size:30px;margin:0 0 14px;letter-spacing:-.3px;color:var(--navy)}
.section-head p{color:var(--muted);font-size:16.5px;margin:0}

/* Cards / grids */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px;
}
.card h3{margin:0 0 10px;font-size:18px;color:var(--navy)}
.card p{margin:0;color:var(--muted);font-size:15px}
.icon-badge{
  width:42px;height:42px;border-radius:9px;background:var(--accent-tint);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.card-art{
  width:100%;height:auto;aspect-ratio:3/2;object-fit:cover;border-radius:8px;margin-bottom:16px;
}

.why{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* Stat band */
.stat-band{background:var(--navy-2);border-top:1px solid rgba(255,255,255,.08);padding:48px 0}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px}
.stat-item{text-align:center}
.stat-item .num{font-size:38px;font-weight:800;color:var(--accent);letter-spacing:-.5px;line-height:1;font-variant-numeric:tabular-nums}
.stat-item .label{margin-top:10px;color:#9AA3B2;font-size:13px;line-height:1.4}
@media (max-width: 900px){
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:28px}
}

/* Offering cards on services page */
.offer{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:34px;margin-bottom:22px;
  display:grid;grid-template-columns:1fr 260px;gap:30px;align-items:start;
}
.offer-art{
  width:100%;height:auto;aspect-ratio:3/2;object-fit:cover;border-radius:10px;
}
@media (max-width: 720px){
  .offer{grid-template-columns:1fr}
  .offer-art{order:-1}
}
.offer .top{display:flex;justify-content:space-between;align-items:flex-start;gap:24px;flex-wrap:wrap;margin-bottom:14px}
.offer h3{font-size:22px;margin:0;color:var(--navy)}
.tag{
  display:inline-block;background:var(--accent-tint);color:var(--accent-dark);
  font-size:12px;font-weight:700;letter-spacing:.4px;text-transform:uppercase;
  padding:6px 12px;border-radius:20px;white-space:nowrap;
}
.offer p.desc{color:var(--muted);font-size:15.5px;margin:0 0 18px;max-width:720px}
.offer .meta{display:flex;gap:32px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:18px}
.offer .meta div{font-size:13.5px}
.offer .meta span{display:block;color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.5px;margin-bottom:4px}

/* CTA band */
.cta-band{
  background:var(--navy);color:#fff;border-radius:16px;
  padding:52px 44px;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap;
}
.cta-band h3{margin:0 0 8px;font-size:24px}
.cta-band p{margin:0;color:#C7CDD8}

/* Insights: case study pipeline diagram + stat tiles */
.pipeline-flow{display:flex;align-items:stretch;gap:0;flex-wrap:wrap}
.pipeline-step{
  flex:1 1 190px;background:#fff;border:1px solid var(--line);border-radius:12px;
  padding:20px;
}
.pipeline-step .step-num{
  width:26px;height:26px;border-radius:50%;background:var(--accent-tint);color:var(--accent-dark);
  font-weight:800;font-size:12.5px;display:flex;align-items:center;justify-content:center;margin-bottom:12px;
}
.pipeline-step h3{margin:0 0 6px;font-size:15.5px;color:var(--navy)}
.pipeline-step p{margin:0;color:var(--muted);font-size:13.5px}
.pipeline-arrow{
  display:flex;align-items:center;justify-content:center;color:var(--accent);
  font-size:20px;font-weight:700;padding:0 4px;flex:0 0 auto;
}
@media (max-width: 820px){
  .pipeline-flow{flex-direction:column}
  .pipeline-arrow{transform:rotate(90deg);padding:6px 0}
}
.stat-tile{background:var(--accent-tint);border-radius:12px;padding:22px;text-align:center}
/* In-article illustration */
.article-art{margin:28px 0}
.article-art img{width:100%;height:auto;border-radius:12px}
.article-art figcaption{margin-top:10px;color:var(--muted);font-size:12.5px;text-align:center}
.stat-tile .num{font-size:26px;font-weight:800;color:var(--navy);letter-spacing:-.3px}
.stat-tile .label{margin-top:8px;color:var(--muted);font-size:12.5px;line-height:1.4}

/* About */
.about-hero{display:grid;grid-template-columns:1.2fr .8fr;gap:48px;align-items:start}
.pill-list li{margin-bottom:10px;color:var(--muted)}
.stat-box{background:#fff;border:1px solid var(--line);border-radius:12px;padding:22px;margin-bottom:16px}
.stat-box b{display:block;color:var(--navy);font-size:15px;margin-bottom:4px}
.stat-box span{color:var(--muted);font-size:14px}
.note{
  background:var(--accent-tint);border:1px solid #C9EDEA;border-radius:12px;padding:20px 22px;
  color:#0B4B49;font-size:14.5px;
}

/* Insights */
.insight-card{border:1px dashed var(--line);border-radius:12px;padding:26px;background:#fff;display:block}
.insight-card .status{font-size:12px;color:var(--accent-dark);font-weight:700;text-transform:uppercase;letter-spacing:.5px;margin-bottom:10px}
.insight-card.published{
  border-style:solid;text-decoration:none;
  transition:box-shadow .15s ease, transform .15s ease;
}
.insight-card.published:hover{box-shadow:0 8px 24px rgba(11,18,32,.08);transform:translateY(-2px)}
.insight-card .read-more{margin-top:14px;color:var(--accent-dark);font-weight:600;font-size:13.5px}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px}
.contact-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:34px}
.contact-card h3{margin-top:0}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;font-weight:600;margin-bottom:6px;color:var(--navy)}
.field input,.field textarea,.field select{
  width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:8px;font-size:14.5px;font-family:inherit;
}
.field textarea{min-height:120px;resize:vertical}
.hp-field{position:absolute;left:-9999px;top:-9999px;}

/* ROI calculator */
.result-card{background:var(--accent-tint);border-color:#C9EDEA}
.result-row{display:flex;justify-content:space-between;align-items:baseline;gap:14px;padding:12px 0;border-bottom:1px solid rgba(11,18,32,.08)}
.result-row:last-of-type{border-bottom:none}
.result-row .rlabel{color:var(--navy);font-size:14px}
.result-row .rvalue{color:var(--navy);font-weight:800;font-size:20px;white-space:nowrap}
.result-note{font-size:12.5px;color:var(--muted);margin-top:14px;line-height:1.5}

/* Federal pulse widget */
.pulse-widget{
  display:flex;align-items:center;gap:18px;background:var(--navy);color:#fff;
  border-radius:14px;padding:24px 26px;
}
.pulse-dot{width:10px;height:10px;border-radius:50%;background:#22C55E;flex:0 0 auto;position:relative}
.pulse-dot::after{
  content:'';position:absolute;inset:-6px;border-radius:50%;background:#22C55E;opacity:.35;
  animation:pulse-ring 1.8s ease-out infinite;
}
@keyframes pulse-ring{0%{transform:scale(.6);opacity:.5}100%{transform:scale(2.2);opacity:0}}
.pulse-num{font-size:34px;font-weight:800;color:var(--accent);line-height:1}
.pulse-label{font-size:13.5px;color:#C7CDD8;margin-top:4px}
.pulse-meta{font-size:11.5px;color:#7C8598;margin-top:8px}

/* Booking page */
.booking-embed{
  min-height:640px;width:100%;overflow:auto;
  background:#fff;border:1px solid var(--line);border-radius:14px;
}
.booking-status{
  text-align:center;color:var(--muted);font-size:15px;
  padding:56px 20px;background:#fff;border:1px solid var(--line);border-radius:14px;
}
@media (max-width:600px){
  .booking-embed{min-height:520px}
}

/* Chat widget */
.chat-widget{position:fixed;right:24px;bottom:24px;z-index:200}
.chat-toggle{
  width:56px;height:56px;border-radius:50%;background:var(--accent);color:#04211f;
  border:none;cursor:pointer;box-shadow:0 8px 24px rgba(11,18,32,.28);
  display:flex;align-items:center;justify-content:center;
}
.chat-toggle:hover{background:var(--accent-dark);color:#fff}
.chat-widget.open .chat-toggle .icon-open{display:none}
.chat-widget:not(.open) .chat-toggle .icon-close{display:none}
.chat-panel{
  position:absolute;right:0;bottom:72px;width:340px;max-width:calc(100vw - 32px);
  background:#fff;border-radius:16px;box-shadow:0 20px 60px rgba(11,18,32,.28);
  display:none;flex-direction:column;overflow:hidden;border:1px solid var(--line);
  height:460px;max-height:70vh;
}
.chat-widget.open .chat-panel{display:flex}
.chat-header{background:var(--navy);color:#fff;padding:14px 16px;display:flex;align-items:center;justify-content:space-between}
.chat-header b{font-size:14.5px}
.chat-header span{display:block;font-size:12px;color:#9AA3B2;margin-top:2px}
.chat-close{background:none;border:none;color:#9AA3B2;cursor:pointer;font-size:18px;line-height:1;padding:4px}
.chat-close:hover{color:#fff}
.chat-messages{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:12px;background:var(--bg)}
.chat-msg{max-width:85%;padding:10px 13px;border-radius:12px;font-size:13.5px;line-height:1.45}
.chat-msg.bot{background:#fff;border:1px solid var(--line);color:var(--ink);align-self:flex-start;border-bottom-left-radius:4px}
.chat-msg.user{background:var(--accent);color:#04211f;align-self:flex-end;border-bottom-right-radius:4px}
.chat-msg.typing{color:var(--muted);font-style:italic}
/* Bot replies are rendered as paragraphs so multi-paragraph answers breathe;
   first/last are flush so the bubble padding stays even. */
.chat-msg.bot p{margin:0 0 9px}
.chat-msg.bot p:last-child{margin-bottom:0}
.chat-msg.bot a{color:var(--accent-dark);font-weight:500}
.chat-msg.bot strong{font-weight:600;color:var(--ink)}
.chat-input-row{display:flex;gap:8px;padding:12px;border-top:1px solid var(--line);background:#fff}
.chat-input-row input{flex:1;padding:10px 12px;border:1px solid var(--line);border-radius:20px;font-size:13.5px;font-family:inherit}
.chat-send{
  background:var(--accent);color:#04211f;border:none;border-radius:50%;width:38px;height:38px;
  display:flex;align-items:center;justify-content:center;cursor:pointer;flex:0 0 auto;font-size:16px;
}
.chat-send:hover{background:var(--accent-dark);color:#fff}
.chat-send:disabled{opacity:.5;cursor:not-allowed}
@media (max-width:480px){
  .chat-panel{width:calc(100vw - 32px)}
}

/* Footer */
footer{background:var(--navy);color:#8B93A1;padding:48px 0 32px;margin-top:40px}
footer .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:24px}
footer .fbrand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;margin-bottom:10px}
footer nav a{display:block;color:#8B93A1;font-size:14px;margin-bottom:8px}
footer nav a:hover{color:#fff}
footer .legal{border-top:1px solid rgba(255,255,255,.08);margin-top:32px;padding-top:20px;font-size:12.5px;color:#5C6472}

@media (max-width: 900px){
  .grid-3,.grid-4,.grid-2{grid-template-columns:1fr}
  .about-hero{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .nav-toggle-btn{display:flex}
  nav.primary{
    display:none;
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:var(--navy);
    padding:8px 24px 20px;
    border-bottom:1px solid rgba(255,255,255,.08);
    box-shadow:0 16px 24px rgba(0,0,0,.28);
  }
  .nav-toggle-checkbox:checked ~ nav.primary{display:flex}
  nav.primary a{padding:14px 0;border-bottom:1px solid rgba(255,255,255,.06);font-size:15.5px}
  nav.primary a.btn{margin-top:14px;border-bottom:none;justify-content:center}
  .hero h1{font-size:32px}
}