/* Vexidus.com — shared design system. Edit tokens/components here once; all pages inherit.
   See WEBSITES_REFERENCE.md for hosting + deploy. */
:root{
  --bg:#030308; --bg-elevated:#0A0D16; --bg-card:rgba(255,255,255,0.02);
  --border:rgba(255,255,255,0.06); --border-hover:rgba(255,255,255,0.12);
  --primary:#4A90E2; --primary-dim:rgba(74,144,226,0.08);
  --accent:#7B61FF; --accent-dim:rgba(123,97,255,0.08);
  --success:#34D399; --text:#F1F5F9; --text-secondary:#94A3B8; --text-dim:#64748B;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
.container{max-width:1180px;margin:0 auto;padding:0 24px}
.narrow{max-width:820px}
.eyebrow{font-size:.8rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--primary)}
.gradient{background:linear-gradient(120deg,var(--primary),var(--accent));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
/* nav */
.nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);background:rgba(3,3,8,.72);border-bottom:1px solid var(--border)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:66px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:.02em}
.brand img{width:30px;height:30px}
.nav-links{display:flex;gap:30px;align-items:center}
.nav-links a{color:var(--text-secondary);font-size:.92rem;font-weight:500;transition:color .2s}
.nav-links a:hover{color:var(--text)}
.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 20px;border-radius:10px;font-weight:600;font-size:.9rem;transition:all .2s;border:1px solid transparent;cursor:pointer}
.btn-primary{background:linear-gradient(120deg,var(--primary),var(--accent));color:#fff}
.btn-primary:hover{opacity:.92;transform:translateY(-1px)}
.btn-outline{border-color:var(--border-hover);color:var(--text)}
.btn-outline:hover{background:var(--bg-card);border-color:var(--primary)}
.nav-toggle{display:none;background:none;border:0;color:var(--text);font-size:1.4rem;cursor:pointer}
/* hero */
.hero{position:relative;padding:120px 0 80px;overflow:hidden}
.hero.sub{padding:96px 0 40px}
.hero::before{content:"";position:absolute;top:-40%;left:50%;transform:translateX(-50%);width:900px;height:900px;background:radial-gradient(circle,var(--accent-dim),transparent 60%);pointer-events:none}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border:1px solid var(--border);border-radius:999px;font-size:.8rem;color:var(--text-secondary);margin-bottom:28px}
.dot{width:7px;height:7px;border-radius:50%;background:var(--success);box-shadow:0 0 0 0 rgba(52,211,153,.6);animation:pulse 2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(52,211,153,.5)}70%{box-shadow:0 0 0 8px rgba(52,211,153,0)}100%{box-shadow:0 0 0 0 rgba(52,211,153,0)}}
.hero h1{font-size:clamp(2.4rem,6vw,4.2rem);font-weight:800;line-height:1.05;letter-spacing:-.02em;margin-bottom:22px}
.hero.sub h1{font-size:clamp(2.1rem,5vw,3.2rem)}
.hero p{font-size:1.16rem;color:var(--text-secondary);max-width:640px;margin-bottom:34px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
/* stat strip */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--border);border:1px solid var(--border);border-radius:16px;overflow:hidden;margin-top:64px}
.stat{background:var(--bg);padding:26px 20px;text-align:center}
.stat-v{font-size:1.9rem;font-weight:800;letter-spacing:-.02em}
.stat-l{font-size:.82rem;color:var(--text-dim);margin-top:4px}
/* sections */
section{padding:90px 0}
.section-head{max-width:680px;margin-bottom:48px}
.section-head h2{font-size:clamp(1.9rem,4vw,2.6rem);font-weight:800;letter-spacing:-.02em;margin:10px 0 14px}
.section-head p{color:var(--text-secondary);font-size:1.05rem}
.lead{font-size:1.14rem;color:var(--text-secondary);margin-bottom:20px}
.prose p{color:var(--text-secondary);margin-bottom:18px}
.prose strong{color:var(--text);font-weight:600}
/* grid + cards */
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px}
.grid-2{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}
.card{background:var(--bg-card);border:1px solid var(--border);border-radius:16px;padding:28px;transition:all .25s;position:relative}
.card:hover{border-color:var(--border-hover);transform:translateY(-3px);background:rgba(255,255,255,.03)}
.card-icon{width:48px;height:48px;border-radius:12px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--primary-dim),var(--accent-dim));border:1px solid var(--border);margin-bottom:18px}
.card-icon svg{width:24px;height:24px;color:#a9c6ff}
.card h3{font-size:1.2rem;font-weight:700;margin-bottom:6px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.card .tag{font-size:.68rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--accent);background:var(--accent-dim);padding:3px 9px;border-radius:999px}
.card p{color:var(--text-secondary);font-size:.95rem;margin-bottom:14px}
.card .card-link{color:var(--primary);font-size:.88rem;font-weight:600;display:inline-flex;gap:6px;align-items:center}
.card .card-link:hover{gap:9px}
/* protocol highlight */
.band{background:var(--bg-elevated);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.protocol-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:56px;align-items:center}
.feat{display:flex;gap:14px;margin-bottom:22px}
.feat-ic{flex:0 0 40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;background:var(--primary-dim);border:1px solid var(--border)}
.feat-ic svg{width:20px;height:20px;color:#a9c6ff}
.feat h4{font-size:1rem;font-weight:650;margin-bottom:2px}
.feat p{color:var(--text-secondary);font-size:.92rem}
/* ip row */
.ip-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}
.ip{border:1px solid var(--border);border-radius:14px;padding:22px;background:var(--bg-card)}
.ip h4{font-size:1.02rem;font-weight:700;margin-bottom:4px}
.ip .num{font-size:.78rem;color:var(--text-dim);font-family:ui-monospace,monospace}
.ip p{color:var(--text-secondary);font-size:.9rem;margin-top:8px}
/* timeline (about) */
.timeline{position:relative;padding-left:26px;margin-top:8px}
.timeline::before{content:"";position:absolute;left:6px;top:6px;bottom:6px;width:2px;background:var(--border)}
.tl{position:relative;margin-bottom:26px}
.tl::before{content:"";position:absolute;left:-26px;top:6px;width:10px;height:10px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 4px var(--primary-dim)}
.tl h4{font-size:1rem;font-weight:650}
.tl p{color:var(--text-secondary);font-size:.92rem}
/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.channels{display:grid;gap:14px}
.channel{display:flex;gap:14px;align-items:flex-start;border:1px solid var(--border);border-radius:14px;padding:18px 20px;transition:all .2s}
.channel:hover{border-color:var(--primary);background:var(--bg-card)}
.channel .ic{flex:0 0 38px;height:38px;border-radius:10px;background:var(--primary-dim);border:1px solid var(--border);display:flex;align-items:center;justify-content:center}
.channel .ic svg{width:19px;height:19px;color:#a9c6ff}
.channel h4{font-size:.98rem;font-weight:650}
.channel a{color:var(--primary);font-size:.9rem;font-weight:500}
.channel span{color:var(--text-dim);font-size:.85rem}
.form{border:1px solid var(--border);border-radius:16px;padding:28px;background:var(--bg-card)}
.form label{display:block;font-size:.82rem;font-weight:600;color:var(--text-secondary);margin:14px 0 6px}
.form input,.form textarea{width:100%;background:var(--bg-elevated);border:1px solid var(--border);border-radius:10px;padding:12px 14px;color:var(--text);font-family:inherit;font-size:.95rem;transition:border-color .2s}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--primary)}
.form textarea{min-height:120px;resize:vertical}
.form .btn{width:100%;justify-content:center;margin-top:22px}
/* footer */
footer{border-top:1px solid var(--border);padding:56px 0 40px;color:var(--text-secondary)}
.foot-top{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap;margin-bottom:36px}
.foot-brand{max-width:340px}
.foot-brand .brand{margin-bottom:14px}
.foot-cols{display:flex;gap:64px;flex-wrap:wrap}
.foot-col h5{font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:var(--text-dim);margin-bottom:14px}
.foot-col a{display:block;color:var(--text-secondary);font-size:.9rem;margin-bottom:9px;transition:color .2s}
.foot-col a:hover{color:var(--text)}
.foot-bottom{border-top:1px solid var(--border);padding-top:24px;font-size:.84rem;color:var(--text-dim);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
@media(max-width:860px){
  .nav-links{display:none}.nav-toggle{display:block}
  .protocol-grid,.contact-grid{grid-template-columns:1fr;gap:36px}
  .stats{grid-template-columns:repeat(2,1fr)}
}