/* MDRP shared shell — tokens, type, nav, footer, reveal (Tangem-aligned dark) */

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;
  font-size:16px;line-height:1.7;color:var(--ink-soft);background:var(--bg);
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  text-rendering:optimizeLegibility;
}
img,svg{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}
:focus{outline:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:3px}

:root{
  /* Palette aligned to official MDRP reference portal */
  --bg:#050507; --bg-1:#0F1116; --bg-2:#14161D; --bg-3:#191C24;
  --ink:#F4F5F7; --ink-soft:#D4D8E0; --ink-mute:#9CA3AF; --ink-dim:#6B7280;
  --accent:#4A8FE7; --accent-light:#6BA3ED; --accent-bright:#89B8F4;
  --accent-dim:rgba(74,143,231,.06); --accent-glow:rgba(74,143,231,.12); --accent-strong:rgba(74,143,231,.22);
  --red:var(--accent); --red-deep:var(--accent-glow); /* compat aliases for sibling pages (bill, governance, roadmap, strategy, QA) — to be removed when those pages migrate to --accent */
  --line:rgba(255,255,255,.05); --line-strong:rgba(255,255,255,.09);
  --mono:'IBM Plex Mono','SF Mono',Menlo,monospace;
  --serif:'DM Sans','Inter',sans-serif;
  --r:16px; --r-lg:24px; --r-xl:32px;
  --max-w:1200px;
}

.wrap{max-width:var(--max-w);margin:0 auto;padding:0 32px}
section{padding:120px 0;scroll-margin-top:80px;position:relative}
section.tight{padding:72px 0}

.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.14em;color:var(--ink-mute);font-weight:500;text-transform:uppercase;margin-bottom:28px;display:inline-block}
.eyebrow.red,.eyebrow.accent{color:var(--accent)}

h1,h2,h3,h4{font-family:var(--serif),'Inter',sans-serif;letter-spacing:-.025em;line-height:1.05;color:var(--ink);font-weight:700}
h1{font-size:clamp(44px,6vw,80px);letter-spacing:-.035em;line-height:1.02}
h2{font-size:clamp(30px,3.8vw,52px);margin-bottom:24px;letter-spacing:-.03em}
h3{font-size:22px;font-weight:600;margin-bottom:12px;letter-spacing:-.01em}
h4{font-size:17px;font-weight:600;margin-bottom:10px}
p{color:var(--ink-soft);max-width:68ch;font-size:16px}
.lead{font-size:20px;line-height:1.55;color:var(--ink-soft);max-width:62ch}
.mono{font-family:var(--mono)}
.currency{font-family:var(--mono);color:var(--ink);font-weight:500}

/* Nav */
.nav{position:sticky;top:0;z-index:50;background:rgba(5,5,7,.82);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid var(--line)}
.nav-inner{max-width:var(--max-w);margin:0 auto;padding:18px 32px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:16px;font-weight:600;letter-spacing:-.01em;color:var(--ink);text-decoration:none}
.fc-mark{width:46px;height:46px;flex-shrink:0;border-radius:6px;overflow:hidden}
.fc-mark img{width:100%;height:100%;object-fit:contain}
.fc-mark-lg{width:64px;height:64px}
.brand-text{display:flex;flex-direction:column;line-height:1.25;gap:2px}
.brand-text-name{font-family:var(--serif),'Inter',sans-serif;font-size:17px;font-weight:700;letter-spacing:.02em;color:var(--ink)}
.brand-text small{font-family:var(--mono);font-size:10px;color:var(--ink-dim,var(--ink-mute));letter-spacing:.14em;text-transform:uppercase;font-weight:400}
.nav-links{display:flex;gap:2px;align-items:center;flex-wrap:wrap}
.nav-links a{font-size:14px;color:var(--ink-soft);padding:8px 14px;border-radius:999px;transition:color .2s,background .2s;font-weight:500}
.nav-links a:hover{color:var(--ink)}
.nav-links a.active{color:var(--ink);background:var(--bg-1)}
.nav-cta{font-size:14px;font-weight:500;color:var(--bg);background:var(--ink);padding:10px 20px;border-radius:999px;transition:all .2s}
.nav-cta:hover{background:#fff}
.nav-toggle{display:none;font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-soft);background:var(--bg-1);padding:10px 16px;border-radius:999px;border:1px solid var(--line-strong);cursor:pointer}
.nav-toggle:hover{color:var(--ink);border-color:var(--ink)}
@media (max-width:900px){.nav-toggle{display:inline-flex}.nav-links{display:none;flex-direction:column;gap:0;width:100%;padding:8px 0 16px;margin-top:12px;border-top:1px solid var(--line);flex-basis:100%}.nav-links.open{display:flex}.nav-links a{padding:12px 4px;border-radius:0}.nav-inner{flex-wrap:wrap}}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:10px;padding:15px 28px;border-radius:999px;font-weight:500;font-size:15px;transition:all .2s ease;border:1px solid transparent}
.btn-primary{background:var(--ink);color:var(--bg)}
.btn-primary:hover{background:#fff}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line-strong)}
.btn-ghost:hover{border-color:var(--ink);background:var(--bg-1)}
.btn .arrow{transition:transform .2s}
.btn:hover .arrow{transform:translateX(3px)}

/* Card primitive */
.card{background:var(--bg-1);border-radius:var(--r-lg);padding:36px;transition:background .2s;border:1px solid transparent}
.card:hover{background:var(--bg-2)}
.card-num{font-family:var(--mono);font-size:12px;letter-spacing:.16em;color:var(--ink-mute);text-transform:uppercase;margin-bottom:20px;font-weight:500}

/* Sub-page hero */
.sub-hero{padding:88px 0 48px;position:relative}
.sub-hero h1{margin-bottom:20px}
.back-link{font-family:var(--mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-mute);display:inline-flex;gap:8px;align-items:center;margin-bottom:24px;transition:color .2s}
.back-link:hover{color:var(--accent)}
.back-link .arr{transition:transform .2s}
.back-link:hover .arr{transform:translateX(-3px)}

/* Footer */
footer{border-top:1px solid var(--line);padding:64px 0 40px;margin-top:80px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:48px;margin-bottom:48px}
@media (max-width:800px){.foot-grid{grid-template-columns:1fr 1fr;gap:40px}}
.foot-brand p{font-size:14px;color:var(--ink-mute);margin-top:18px;max-width:36ch}
.foot-col h5{font-family:var(--mono);font-size:11px;letter-spacing:.16em;color:var(--ink-mute);text-transform:uppercase;margin-bottom:18px;font-weight:500}
.foot-col ul{list-style:none}
.foot-col li{margin-bottom:10px}
.foot-col a{color:var(--ink-soft);font-size:14px;transition:color .2s}
.foot-col a:hover{color:var(--ink)}
.foot-bottom{display:flex;justify-content:space-between;padding-top:28px;border-top:1px solid var(--line);font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--ink-mute);text-transform:uppercase;flex-wrap:wrap;gap:12px}

/* Essence bar */
.essence{text-align:center;font-family:var(--mono);font-size:11px;color:var(--ink-mute);letter-spacing:.24em;text-transform:uppercase;padding:24px 0;border-top:1px solid var(--line);font-weight:400}
.essence .arrow{color:var(--ink-mute);margin:0 12px}

/* Reveal */
.reveal{opacity:0;transform:translateY(8px);transition:opacity .55s ease,transform .55s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

::selection{background:var(--accent-strong);color:var(--ink)}