:root{
  /* brand palette (constant across themes) */
  --navy:#14202E; --blue:#1F5C92; --accent:#7FB6DA; --evergreen:#1F4A37; --silver:#C7D0D8; --snow:#F5F8FB;
  /* semantic tokens (light values; overridden for dark below) */
  --bg:#F5F8FB; --surface:#ffffff; --ink:#1b2733; --muted:#5b6b7b; --line:#e2e9f0;
  --heading:#14202E; --link:#1F5C92; --header-bg:rgba(245,248,251,.92); --tag-bg:#eaf1f8;
  --maxw:1080px;
}
/* dark: follow the OS unless the user forced light; explicit data-theme="dark" always wins */
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#0f1620; --surface:#161f2b; --ink:#e6edf4; --muted:#a7b4c2; --line:#27323f;
    --heading:#eaf1f8; --link:#7fb6da; --header-bg:rgba(15,22,32,.92); --tag-bg:#1b2a3a;
  }
}
:root[data-theme="dark"]{
  --bg:#0f1620; --surface:#161f2b; --ink:#e6edf4; --muted:#a7b4c2; --line:#27323f;
  --heading:#eaf1f8; --link:#7fb6da; --header-bg:rgba(15,22,32,.92); --tag-bg:#1b2a3a;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--link);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* header */
header{position:sticky;top:0;z-index:10;background:var(--header-bg);backdrop-filter:saturate(140%) blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:12px}
.brand:hover{text-decoration:none}
.brand img{width:38px;height:38px;display:block}
.brand .name{font-weight:700;font-size:1.25rem;color:var(--heading);letter-spacing:.2px}
.brand .name b{color:var(--link)}
.nav-links{display:flex;align-items:center}
.nav-links a{color:var(--heading);font-weight:600;margin-left:26px;font-size:.95rem}
.nav-links a.active{color:var(--link)}
@media(max-width:560px){.nav-links a{margin-left:16px;font-size:.88rem}}

/* theme toggle */
.theme-toggle{margin-left:22px;display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;padding:0;border:1px solid var(--line);border-radius:8px;background:transparent;color:var(--heading);font-size:1.05rem;line-height:1;cursor:pointer;transition:border-color .15s,background .15s}
.theme-toggle:hover{border-color:var(--link)}
@media(max-width:560px){.theme-toggle{margin-left:14px;width:34px;height:34px}}

/* hero (home) */
.hero{background:linear-gradient(160deg,var(--navy) 0%,#1a3147 55%,var(--blue) 130%);color:#fff;padding:96px 0 104px}
.hero h1{font-size:clamp(2rem,5vw,3.2rem);line-height:1.12;margin:0 0 18px;font-weight:800;letter-spacing:-.5px}
.hero h1 .accent{color:var(--accent)}
.hero p{font-size:clamp(1.05rem,2.2vw,1.3rem);color:#cdd9e6;max-width:660px;margin:0 0 32px}

/* page hero (inner) */
.phero{background:linear-gradient(160deg,var(--navy),#1a3147);color:#fff;padding:64px 0}
.phero .eyebrow{color:var(--accent)}
.phero h1{font-size:clamp(1.8rem,4vw,2.6rem);margin:0 0 14px;font-weight:800;letter-spacing:-.4px}
.phero p{color:#cdd9e6;max-width:680px;margin:0;font-size:1.1rem}

.cta{display:inline-block;background:var(--accent);color:var(--navy);font-weight:700;padding:13px 26px;border-radius:8px;font-size:1rem}
.cta:hover{text-decoration:none;filter:brightness(1.05)}
.cta.secondary{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.4);margin-left:12px}

section{padding:72px 0}
.eyebrow{color:var(--link);font-weight:700;text-transform:uppercase;letter-spacing:1.5px;font-size:.8rem;margin:0 0 10px}
h2{font-size:clamp(1.6rem,3.5vw,2.2rem);color:var(--heading);margin:0 0 16px;font-weight:800;letter-spacing:-.3px}
.lead{color:var(--muted);max-width:720px;font-size:1.08rem}

.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:44px}
.grid.two{grid-template-columns:repeat(2,1fr)}
.grid.four{grid-template-columns:repeat(2,1fr)}
@media(max-width:820px){.grid,.grid.two,.grid.four{grid-template-columns:1fr}}
.card{display:block;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:28px 26px;box-shadow:0 1px 2px rgba(20,32,46,.04);color:inherit}
a.card{transition:.15s}
a.card:hover{text-decoration:none;border-color:var(--blue);box-shadow:0 6px 18px rgba(20,32,46,.08);transform:translateY(-2px)}
.card .icon{width:54px;height:54px;display:block;margin-bottom:12px}
.card .tag{display:inline-block;font-size:.72rem;font-weight:700;letter-spacing:1px;text-transform:uppercase;color:var(--link);background:var(--tag-bg);padding:4px 10px;border-radius:20px;margin-bottom:14px}
.card h3{margin:0 0 8px;font-size:1.2rem;color:var(--heading)}
.card p{margin:0;color:var(--muted);font-size:.98rem}
.card .more{display:inline-block;margin-top:14px;color:var(--link);font-weight:600;font-size:.9rem}

.alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* contact */
.contact-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:48px;margin-top:36px;align-items:start}
@media(max-width:820px){.contact-grid{grid-template-columns:1fr;gap:28px}}
.contact-list{list-style:none;padding:0;margin:0}
.contact-list li{display:flex;gap:14px;padding:14px 0;border-bottom:1px solid var(--line);align-items:baseline}
.contact-list li:last-child{border-bottom:0}
.contact-list .label{font-weight:700;color:var(--heading);min-width:92px}

/* footer (dark in both themes) */
footer{background:var(--navy);color:#aebccb;padding:40px 0;font-size:.9rem}
.foot{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px}
.foot .brand .name{color:#fff;font-size:1.05rem}
.foot a{color:#cdd9e6}

/* accessibility */
.skip-link{position:absolute;left:8px;top:-48px;z-index:100;background:var(--surface);color:var(--link);border:1px solid var(--line);padding:8px 14px;border-radius:8px;font-weight:700;transition:top .15s}
.skip-link:focus{top:8px;text-decoration:none}
:focus-visible{outline:2px solid var(--link);outline-offset:2px;border-radius:4px}
main:focus{outline:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition:none!important;animation:none!important}
  a.card:hover{transform:none}
}