/* arcecho.studio — dark editorial, violet accent */
:root {
  --bg:#0B0F18; --surface:#121826; --fg:#F2EFE6; --muted:#A9AEB9;
  --faint:#5A6373; --accent:#D4AF37; --accent-2:#E5C78A; --glow:212,175,55;
}
* { box-sizing:border-box; margin:0; padding:0; }
html { -webkit-text-size-adjust:100%; }
body {
  background:
    radial-gradient(1100px 600px at 50% -10%, rgba(var(--glow),.12), transparent 60%),
    var(--bg);
  color:var(--fg);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  -webkit-font-smoothing:antialiased; line-height:1.65; min-height:100svh;
}
a { color:var(--accent-2); text-decoration:none; }
a:hover { text-decoration:underline; }
h1 { font-size:clamp(2rem,6vw,3.2rem); font-weight:300; letter-spacing:-.02em;
  line-height:1.08; margin-bottom:.6em; }
h2 { font-size:clamp(1.15rem,3vw,1.5rem); font-weight:600; margin:1.8em 0 .6em; }
h3 { font-size:1.05rem; font-weight:600; }
.muted { color:var(--muted); }
.lede { color:var(--muted); font-size:clamp(1.02rem,2.4vw,1.2rem); max-width:60ch;
  margin-bottom:1.6em; }

/* header */
.site-header { border-bottom:1px solid #202A3D; }
.site-header nav { max-width:1000px; margin:0 auto; padding:14px 20px;
  display:flex; align-items:center; justify-content:space-between; gap:16px;
  flex-wrap:wrap; }
.brand { display:flex; align-items:center; gap:10px; color:var(--fg);
  font-weight:600; font-size:1.05rem; }
.brand:hover { text-decoration:none; }
.brand .mark { width:26px; height:26px; color:var(--accent); }
.brand b { color:var(--accent-2); font-weight:500; }
.nav-links { display:flex; gap:16px; flex-wrap:wrap; }
.nav-links a { color:var(--muted); font-size:.95rem; }
.nav-links a:hover { color:var(--fg); text-decoration:none; }
.nav-links a[aria-current] { color:var(--accent-2); }
@media (max-width:720px) {
  .nav-links { flex:1 0 100%; overflow-x:auto; flex-wrap:nowrap;
    white-space:nowrap; scrollbar-width:none; padding-bottom:2px; }
  .nav-links::-webkit-scrollbar { display:none; }
}

/* layout */
main { max-width:1000px; margin:0 auto; padding:44px 20px 24px; }
.prose { max-width:70ch; color:#D9DCE3; }
.prose p, .prose ul, .prose ol { margin-bottom:1em; }
.prose ul, .prose ol { padding-left:1.3em; }
.prose li { margin-bottom:.55em; }
.prose strong { color:var(--fg); }
.manifesto ol li, .charter ol li { margin-bottom:1.15em; }
.contact-list { list-style:none; padding:0; }
.contact-list li { padding:10px 0; border-bottom:1px solid #202A3D; }

/* hero */
.hero { text-align:center; padding:7vh 0 4vh; }
.hero .lede { margin:0 auto 1.8em; }
.echo-mark { width:64px; height:64px; margin:0 auto 22px; color:var(--accent);
  filter:drop-shadow(0 0 18px rgba(var(--glow),.5)); }
.echo-mark svg { width:100%; height:100%; }
.echo-mark .r1 { animation:echo 3s ease-in-out infinite; }
.echo-mark .r2 { animation:echo 3s ease-in-out infinite .6s; }
@keyframes echo { 0%,100%{opacity:.22} 50%{opacity:.95} }

/* buttons + tiles */
.cta-row { display:flex; gap:12px; justify-content:center; flex-wrap:wrap;
  margin:1.4em 0 2.5em; }
h1 ~ .cta-row, .prose .cta-row { justify-content:flex-start; }
.btn { display:inline-block; padding:11px 22px; border-radius:999px;
  border:1px solid #2E3B57; color:var(--fg); font-size:.95rem; }
.btn:hover { border-color:var(--accent); text-decoration:none; }
.btn-primary { background:var(--accent); border-color:var(--accent);
  color:#0B0F18; font-weight:600; }
.btn-primary:hover { background:var(--accent-2); }
.cards3 { display:grid; gap:18px;
  grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr));
  margin:2.5em 0; }
.tile { background:var(--surface); border:1px solid #202A3D; border-radius:14px;
  padding:22px; color:var(--fg); transition:border-color .15s, transform .15s; }
.tile:hover { border-color:var(--accent); transform:translateY(-2px);
  text-decoration:none; }
.tile h3 { margin-bottom:.4em; color:var(--accent-2); }
.tile p { color:var(--muted); font-size:.93rem; }

/* newsletter band */
.nl-band { max-width:1000px; margin:30px auto 0; padding:34px 20px;
  border-top:1px solid #202A3D; text-align:center; }
.nl-band h2 { margin:0 0 .3em; font-size:1.3rem; }
.nl-band p { color:var(--muted); margin-bottom:1.1em; }
.nl-form { display:flex; gap:10px; justify-content:center; flex-wrap:wrap; }
.nl-form input[type=email] { background:var(--surface); border:1px solid #2E3B57;
  color:var(--fg); border-radius:999px; padding:11px 18px; min-width:min(320px,80vw);
  font-size:.95rem; }
.nl-form input[type=email]:focus { outline:none; border-color:var(--accent); }
.nl-form button { background:var(--accent); color:#0B0F18; border:0;
  border-radius:999px; padding:11px 26px; font-weight:600; font-size:.95rem;
  cursor:pointer; }
.nl-form button:hover { background:var(--accent-2); }
.nl-thanks { color:var(--accent-2); font-weight:600; }
.hp { position:absolute; left:-5000px; width:1px; height:1px; opacity:0; }

/* footer */
.site-footer { max-width:1000px; margin:0 auto; padding:22px 20px 34px;
  border-top:1px solid #202A3D; color:var(--faint); font-size:.85rem;
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px; }
.site-footer a { color:var(--muted); }
.site-footer nav { display:flex; gap:8px; }
@media (prefers-reduced-motion:reduce) { * { animation:none !important; } }

/* Arc Echo brand refresh: Signal Portal + letterspaced wordmark */
.brand { letter-spacing:.24em; text-transform:uppercase; font-weight:500;
  font-size:.92rem; }
.brand b { color:var(--accent); font-weight:500; }
.brand .mark { width:30px; height:30px; }
.footer-tagline { flex-basis:100%; text-align:center; color:var(--accent);
  font-size:.66rem; letter-spacing:.24em; text-transform:uppercase;
  padding-top:4px; }
.echo-mark svg path { }

/* homepage hero lockup: logo + company name lead the page */
.hero-lockup { width:min(78vw, 400px); margin:0 auto 6px; }
.hero-lockup svg { width:100%; height:auto; display:block; }
.hero-lockup .lk-sym { fill:var(--accent); }
.hero-lockup .lk-word { fill:var(--fg); }
.hero-brandline { color:var(--accent); font-size:.78rem; letter-spacing:.32em;
  text-transform:uppercase; margin:0 0 34px; }
.hero--lockup h1 { font-size:clamp(1.5rem, 4vw, 2.3rem); font-weight:300; }

/* hero CTAs are always centered (content-page rows stay left-aligned) */
.hero .cta-row { justify-content: center; }