/* ============================================================
   TAC Dynamics LLC — tacdynamics.us
   Palette: Atlantic Navy / Paper / Customs Copper
   Type: Archivo (display) · Public Sans (body) · IBM Plex Mono (data)
   ============================================================ */

:root{
  --navy:#0F2940;
  --navy-deep:#0A1C2C;
  --navy-soft:#1B3D5C;
  --paper:#F5F7F8;
  --white:#FFFFFF;
  --ink:#16222D;
  --ink-soft:#46586A;
  --copper:#C05E2C;
  --copper-soft:#E8C9B4;
  --line:#D8E0E6;
  --mist:#E9EFF2;
  --radius:6px;
  --maxw:1140px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
}

body{
  font-family:'Public Sans',system-ui,-apple-system,sans-serif;
  font-size:17px;line-height:1.65;
  color:var(--ink);background:var(--paper);
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3,h4{font-family:'Archivo',sans-serif;line-height:1.12;color:var(--navy);letter-spacing:-0.015em}
h1{font-size:clamp(2.3rem,5vw,3.6rem);font-weight:800}
h2{font-size:clamp(1.7rem,3.4vw,2.4rem);font-weight:700}
h3{font-size:1.25rem;font-weight:700}
p{max-width:62ch}
a{color:var(--copper);text-decoration:none}
a:hover{text-decoration:underline}
a:focus-visible,button:focus-visible{outline:3px solid var(--copper);outline-offset:2px}
img,svg{display:block;max-width:100%}
.mono{font-family:'IBM Plex Mono',monospace}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ---------- eyebrow / labels ---------- */
.eyebrow{
  font-family:'IBM Plex Mono',monospace;
  font-size:.78rem;letter-spacing:.18em;text-transform:uppercase;
  color:var(--copper);margin-bottom:14px;display:flex;align-items:center;gap:10px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--copper)}

/* ---------- header ---------- */
.site-header{
  background:var(--white);border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:50;
}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none}
.brand:hover{text-decoration:none}
.brand svg{height:38px;width:auto}
.nav-links{display:flex;gap:30px;list-style:none;align-items:center}
.nav-links a{
  color:var(--navy);font-weight:600;font-size:.92rem;letter-spacing:.01em;
}
.nav-links a:hover{color:var(--copper);text-decoration:none}
.nav-links a[aria-current="page"]{color:var(--copper)}
.nav-cta{
  background:var(--navy);color:var(--white)!important;
  padding:10px 20px;border-radius:var(--radius);font-size:.88rem;
}
.nav-cta:hover{background:var(--copper);text-decoration:none}
.nav-toggle{display:none}
.nav-toggle-label{display:none;cursor:pointer;padding:8px}
.nav-toggle-label span{display:block;width:24px;height:2px;background:var(--navy);margin:5px 0;transition:.2s}

@media (max-width:840px){
  .nav-toggle-label{display:block}
  .nav-links{
    display:none;position:absolute;top:74px;left:0;right:0;
    background:var(--white);flex-direction:column;gap:0;
    border-bottom:1px solid var(--line);padding:8px 0;
  }
  .nav-links li{width:100%}
  .nav-links a{display:block;padding:14px 24px}
  .nav-cta{margin:10px 24px;display:inline-block;text-align:center}
  .nav-toggle:checked ~ .nav-links{display:flex}
}

/* ---------- hero ---------- */
.hero{
  background:var(--navy-deep);
  color:var(--mist);
  position:relative;overflow:hidden;
}
.hero .wrap{
  display:grid;grid-template-columns:1.05fr .95fr;gap:48px;
  align-items:center;padding-top:84px;padding-bottom:84px;
}
.hero h1{color:var(--white)}
.hero h1 em{font-style:normal;color:var(--copper-soft)}
.hero p.lede{font-size:1.13rem;color:#BACBD8;margin:22px 0 34px}
.hero .eyebrow{color:var(--copper-soft)}
.hero .eyebrow::before{background:var(--copper-soft)}
.btn-row{display:flex;gap:14px;flex-wrap:wrap}
.btn{
  display:inline-block;padding:14px 28px;border-radius:var(--radius);
  font-weight:700;font-size:.95rem;letter-spacing:.01em;font-family:'Archivo',sans-serif;
}
.btn-primary{background:var(--copper);color:var(--white)}
.btn-primary:hover{background:#A84E20;text-decoration:none}
.btn-ghost{border:1.5px solid #3D5972;color:var(--white)}
.btn-ghost:hover{border-color:var(--copper-soft);color:var(--copper-soft);text-decoration:none}
.hero-art{min-width:0}
.hero-art svg{width:100%;height:auto}
.hero-meta{
  display:flex;gap:28px;margin-top:38px;flex-wrap:wrap;
  font-family:'IBM Plex Mono',monospace;font-size:.78rem;letter-spacing:.06em;color:#7E94A6;
}
.hero-meta b{display:block;color:var(--white);font-size:1.05rem;letter-spacing:0;font-family:'Archivo',sans-serif}

@media (max-width:900px){
  .hero .wrap{grid-template-columns:1fr;padding-top:60px;padding-bottom:60px}
}

/* ---------- sections ---------- */
.section{padding:84px 0}
.section.alt{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:680px;margin-bottom:48px}
.section-head p{color:var(--ink-soft);margin-top:14px}

/* cards manifest-style */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
@media (max-width:900px){.grid-3{grid-template-columns:1fr}.grid-2{grid-template-columns:1fr}}

.card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 28px;position:relative;
}
.section.alt .card{background:var(--paper)}
.card .tag{
  font-family:'IBM Plex Mono',monospace;font-size:.72rem;letter-spacing:.14em;
  text-transform:uppercase;color:var(--copper);margin-bottom:16px;display:block;
}
.card h3{margin-bottom:12px}
.card p{font-size:.97rem;color:var(--ink-soft)}
.card .icon{margin-bottom:20px}
.card .icon svg{width:44px;height:44px}

/* two-column feature */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
@media (max-width:900px){.split{grid-template-columns:1fr}}
.split ul{list-style:none;margin-top:22px}
.split li{
  padding:13px 0 13px 32px;border-bottom:1px solid var(--line);
  position:relative;color:var(--ink-soft);font-size:.98rem;
}
.split li::before{
  content:"";position:absolute;left:0;top:21px;width:16px;height:2px;background:var(--copper);
}
.split li b{color:var(--navy)}

/* corridor strip */
.corridor{
  background:var(--navy);color:var(--mist);padding:64px 0;
}
.corridor .wrap{display:grid;grid-template-columns:auto 1fr;gap:48px;align-items:center}
@media (max-width:900px){.corridor .wrap{grid-template-columns:1fr}}
.corridor h2{color:var(--white)}
.corridor p{color:#B7C8D5}
.corridor .route{font-family:'IBM Plex Mono',monospace;font-size:.8rem;letter-spacing:.1em;color:var(--copper-soft)}

/* data table (legal / company info) */
.datasheet{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;font-size:.95rem;
}
.datasheet div{
  display:grid;grid-template-columns:220px 1fr;border-bottom:1px solid var(--line);
}
.datasheet div:last-child{border-bottom:0}
.datasheet dt{
  font-family:'IBM Plex Mono',monospace;font-size:.74rem;letter-spacing:.12em;
  text-transform:uppercase;color:var(--ink-soft);
  padding:16px 20px;background:var(--mist);
}
.datasheet dd{padding:14px 20px;color:var(--ink)}
@media (max-width:640px){.datasheet div{grid-template-columns:1fr}.datasheet dt{padding-bottom:4px}}

/* CTA band */
.cta-band{
  background:var(--copper);color:var(--white);padding:70px 0;
}
.cta-band .wrap{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-band h2{color:var(--white)}
.cta-band p{color:#F6E3D6;margin-top:8px}
.cta-band .btn{background:var(--navy-deep);color:var(--white)}
.cta-band .btn:hover{background:var(--navy);text-decoration:none}

/* ---------- page hero (interior) ---------- */
.page-hero{
  background:var(--navy-deep);color:var(--mist);padding:64px 0;
}
.page-hero h1{color:var(--white);font-size:clamp(2rem,4vw,2.9rem)}
.page-hero p{color:#B7C8D5;margin-top:14px;font-size:1.08rem}
.page-hero .eyebrow{color:var(--copper-soft)}
.page-hero .eyebrow::before{background:var(--copper-soft)}

/* prose for legal pages */
.prose{max-width:760px}
.prose h2{font-size:1.45rem;margin:44px 0 14px}
.prose h3{font-size:1.1rem;margin:30px 0 10px}
.prose p,.prose li{color:var(--ink-soft);font-size:.98rem}
.prose p{margin-bottom:14px}
.prose ul{margin:0 0 14px 22px}
.prose li{margin-bottom:6px}
.prose .updated{
  font-family:'IBM Plex Mono',monospace;font-size:.78rem;letter-spacing:.1em;
  color:var(--ink-soft);text-transform:uppercase;margin-bottom:32px;
}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
@media (max-width:900px){.contact-grid{grid-template-columns:1fr}}
.contact-block{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:32px;
}
.contact-block h3{margin-bottom:6px}
.contact-block .mono{font-size:.86rem;color:var(--ink-soft)}
.contact-line{display:flex;gap:14px;align-items:flex-start;padding:16px 0;border-bottom:1px solid var(--line)}
.contact-line:last-child{border-bottom:0}
.contact-line svg{width:22px;height:22px;flex-shrink:0;margin-top:3px}
.contact-line a{font-weight:600}

/* ---------- footer ---------- */
.site-footer{
  background:var(--navy-deep);color:#92A8BA;padding:64px 0 36px;font-size:.9rem;
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;margin-bottom:48px;
}
@media (max-width:900px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.footer-grid{grid-template-columns:1fr}}
.site-footer h4{
  color:var(--white);font-size:.8rem;letter-spacing:.14em;text-transform:uppercase;
  font-family:'IBM Plex Mono',monospace;font-weight:500;margin-bottom:18px;
}
.site-footer ul{list-style:none}
.site-footer li{margin-bottom:10px}
.site-footer a{color:#92A8BA}
.site-footer a:hover{color:var(--copper-soft)}
.footer-brand svg{height:40px;width:auto;margin-bottom:18px}
.footer-brand p{font-size:.88rem;line-height:1.7}
.footer-bottom{
  border-top:1px solid #1E3850;padding-top:26px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-family:'IBM Plex Mono',monospace;font-size:.74rem;letter-spacing:.06em;
}