/* =============================================================================
   NorthReserve — shared site styles
   Brand system: Basalt / Glacier / Gold · Clash Display + Satoshi + JetBrains Mono
   Used by index.html, enterprise.html, privacy.html
   ============================================================================= */

:root{
  --basalt:#0A2A2E; --ink:#0E3A40; --ink2:#10454C;
  --pine:#176658; --pine-bright:#1E8A6E;
  --glacier:#57C7DA; --glacier-deep:#2A8FA8;
  --gold:#F2B441; --gold-soft:#FFE6A6;
  --snow:#F4F6F3; --ridge:#B8C6C3; --slate:#8DA09C; --slate-deep:#5F726F;
  --coral:#E2553D;
  --z-ret:#1D9E6E; --z-mid:#BA7517; --z-emg:#2A8ADD; --z-buf:#7F77DD;
  --body-col:#D6E2DF;
  --maxw:1120px;
  --disp:'Clash Display','Satoshi',ui-sans-serif,system-ui,sans-serif;
  --body:'Satoshi',ui-sans-serif,system-ui,-apple-system,sans-serif;
  --mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--basalt); color:var(--snow); font-family:var(--body);
  line-height:1.6; -webkit-font-smoothing:antialiased; overflow-x:hidden;
  background-image:
    radial-gradient(1100px 620px at 78% -8%, rgba(30,138,110,.20), transparent 60%),
    radial-gradient(900px 560px at 8% 4%, rgba(87,199,218,.10), transparent 60%);
  background-attachment:fixed;
}
a{color:var(--glacier);text-decoration:none}
a:hover{color:var(--gold-soft)}
img{max-width:100%;display:block}

/* ---------- layout ---------- */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
section{padding:84px 0;border-top:1px solid rgba(87,199,218,.08)}
.section-sm{padding:56px 0}

/* ---------- type ---------- */
h1{font-family:var(--disp);font-weight:600;font-size:clamp(36px,6.2vw,68px);line-height:1.02;letter-spacing:-.02em}
h2{font-family:var(--disp);font-weight:600;font-size:clamp(27px,3.8vw,42px);line-height:1.08;letter-spacing:-.01em;margin-bottom:14px}
h3{font-family:var(--disp);font-weight:500;font-size:20px;color:var(--snow);margin-bottom:6px}
p{color:var(--body-col);max-width:64ch}
.lead{font-size:clamp(17px,2.2vw,21px);color:#E7EFEC;max-width:56ch}
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.28em;text-transform:uppercase;color:var(--glacier);margin-bottom:16px}
.gold{color:var(--gold)} .muted{color:var(--slate)} .snow{color:var(--snow)}
.center{text-align:center} .center p{margin-inline:auto}

/* ---------- header / nav ---------- */
header.nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(10px);
  background:rgba(10,42,46,.72);border-bottom:1px solid rgba(87,199,218,.10)}
.nav-inner{max-width:var(--maxw);margin:0 auto;padding:14px 24px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.brand{display:flex;align-items:center;gap:11px;font-family:var(--disp);font-weight:600;font-size:21px;letter-spacing:-.02em;color:var(--snow)}
.brand .r{color:var(--gold)}
.brand svg{width:30px;height:30px;flex:none}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{color:var(--ridge);font-size:15px;font-weight:500}
.nav-links a:hover{color:var(--snow)}
.nav-cta{display:inline-flex}
.menu-toggle{display:none;background:none;border:0;color:var(--snow);font-size:24px;cursor:pointer}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:9px;font-family:var(--disp);font-weight:600;font-size:16px;
  background:var(--gold);color:var(--basalt);border:none;border-radius:12px;padding:13px 22px;cursor:pointer;
  box-shadow:0 12px 28px -14px rgba(242,180,65,.7);transition:transform .15s ease,box-shadow .15s ease}
.btn:hover{transform:translateY(-2px);color:var(--basalt);box-shadow:0 18px 36px -16px rgba(242,180,65,.8)}
.btn.ghost{background:transparent;color:var(--glacier);border:1.5px solid var(--glacier-deep);box-shadow:none}
.btn.ghost:hover{background:rgba(87,199,218,.08);color:var(--snow)}
.btn-row{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}

/* ---------- hero ---------- */
.hero{padding:88px 0 64px}
.hero .eyebrow{margin-bottom:20px}
.hero p{margin-top:20px}
.hero-sub{margin-top:14px;font-family:var(--disp);font-weight:400;font-size:clamp(18px,2.6vw,26px);color:var(--glacier);letter-spacing:-.01em}

/* ---------- cards / grids ---------- */
.grid{display:grid;gap:18px}
.g-3{grid-template-columns:repeat(3,1fr)}
.g-2{grid-template-columns:repeat(2,1fr)}
.card{background:linear-gradient(165deg,var(--ink),var(--basalt));border:1px solid rgba(87,199,218,.14);
  border-radius:18px;padding:26px 24px;position:relative;overflow:hidden}
.card .num{font-family:var(--mono);font-size:12px;letter-spacing:.2em;color:var(--gold)}
.card p{font-size:15px;color:#C7D5D2}
.card.gold-edge{border-color:rgba(242,180,65,.4)}
.card-link{display:block;transition:transform .15s ease,border-color .15s ease}
.card-link:hover{transform:translateY(-3px);border-color:rgba(87,199,218,.4)}
.card-link .more{font-family:var(--mono);font-size:12.5px;color:var(--gold);letter-spacing:.06em;margin-top:16px;display:inline-block}

/* ---------- steps ---------- */
.steps{counter-reset:step}
.step .num{width:38px;height:38px;border-radius:10px;background:rgba(87,199,218,.12);border:1px solid rgba(87,199,218,.3);
  display:flex;align-items:center;justify-content:center;font-family:var(--mono);color:var(--glacier);font-size:15px;margin-bottom:16px}
.step.gold .num{background:rgba(242,180,65,.14);border-color:rgba(242,180,65,.45);color:var(--gold)}

/* ---------- zones (mountain layers) ---------- */
.zones{display:flex;flex-direction:column;gap:10px;max-width:520px}
.zone{border-radius:12px;padding:15px 18px;display:flex;justify-content:space-between;align-items:center;color:#fff}
.zone .zn{font-family:var(--disp);font-weight:500;font-size:16px}
.zone .zd{font-family:var(--mono);font-size:12px;opacity:.9;text-transform:uppercase;letter-spacing:.1em}
.z-ret{background:linear-gradient(90deg,var(--z-ret),#15734f);margin-inline:44px 0}
.z-mid{background:linear-gradient(90deg,var(--z-mid),#8f5a12);margin-inline:30px 0}
.z-emg{background:linear-gradient(90deg,var(--z-emg),#1f6ab0);margin-inline:16px 0}
.z-buf{background:linear-gradient(90deg,var(--z-buf),#5e57b0)}
.star{color:var(--gold);font-size:22px}

/* ---------- callout / rule ---------- */
.callout{display:flex;gap:14px;align-items:flex-start;background:rgba(242,180,65,.07);
  border:1px solid rgba(242,180,65,.3);border-radius:14px;padding:18px 20px}
.callout .s{color:var(--gold);font-size:20px;line-height:1;flex:none}
.callout p{color:#EAD9B4;font-size:14.5px;margin:0}
.note{background:rgba(87,199,218,.06);border:1px solid rgba(87,199,218,.22);border-radius:14px;padding:18px 20px;font-size:14.5px;color:#CBD8D5}

/* ---------- CTA band ---------- */
.cta-band{background:radial-gradient(circle at 50% 120%,rgba(30,138,110,.28),transparent 60%);text-align:center}
.cta-band h2{margin-inline:auto;max-width:18ch}

/* ---------- prose (privacy) ---------- */
.prose{max-width:760px;margin:0 auto}
.prose h2{font-size:clamp(21px,2.6vw,27px);margin:40px 0 12px}
.prose h2:first-of-type{margin-top:0}
.prose h3{font-size:17px;margin:22px 0 6px;color:var(--ridge)}
.prose p{color:#CBD8D5;font-size:15.5px;margin-bottom:12px;max-width:none}
.prose ul{margin:8px 0 16px 22px;color:#CBD8D5;font-size:15.5px}
.prose li{margin:5px 0}
.prose a{color:var(--glacier)}
.prose .updated{font-family:var(--mono);font-size:12.5px;color:var(--slate);letter-spacing:.06em;text-transform:uppercase;margin-bottom:26px}
.prose code{font-family:var(--mono);font-size:.9em;background:rgba(87,199,218,.1);padding:2px 6px;border-radius:5px;color:var(--glacier)}

/* ---------- footer ---------- */
footer.site{border-top:1px solid rgba(87,199,218,.12);padding:52px 0 60px;margin-top:20px}
.foot-grid{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap}
.foot-brand{max-width:320px}
.foot-brand .brand{margin-bottom:12px}
.foot-brand p{font-size:14px;color:var(--slate)}
.foot-cols{display:flex;gap:56px;flex-wrap:wrap}
.foot-col h4{font-family:var(--mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--slate);margin-bottom:14px}
.foot-col a{display:block;color:var(--ridge);font-size:14.5px;margin-bottom:9px}
.foot-legal{margin-top:38px;padding-top:22px;border-top:1px solid rgba(87,199,218,.08);
  font-size:13px;color:var(--slate-deep);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}

/* ---------- responsive ---------- */
@media(max-width:860px){
  .g-3{grid-template-columns:1fr}
  .g-2{grid-template-columns:1fr}
  .nav-links{display:none}
  .nav-links.open{display:flex;position:absolute;top:60px;left:0;right:0;flex-direction:column;
    background:rgba(10,42,46,.98);padding:18px 24px;border-bottom:1px solid rgba(87,199,218,.14);gap:16px}
  .menu-toggle{display:block}
  .foot-grid{flex-direction:column}
}