/* ============================================================
   Decibel A vzw/ASBL — shared stylesheet
   Palette: ink navy / warm paper / amber signal
   Type: Archivo (display) · IBM Plex Sans (body) · IBM Plex Mono (data)
   ============================================================ */

:root{
  --ink:#131c31;
  --ink-soft:#26314b;
  --paper:#f6f5f1;
  --card:#ffffff;
  --amber:#f2a33c;
  --amber-deep:#d9871a;
  --slate:#5a6478;
  --line:#ddd8cc;
  --radius:14px;
  --maxw:1080px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:"IBM Plex Sans",system-ui,sans-serif;
  background:var(--paper);
  color:var(--ink);
  line-height:1.65;
  font-size:16.5px;
}
img{max-width:100%;display:block}
a{color:var(--ink);text-decoration-color:var(--amber);text-decoration-thickness:2px;text-underline-offset:3px}
a:hover{color:var(--amber-deep)}
:focus-visible{outline:3px solid var(--amber);outline-offset:3px;border-radius:4px}

h1,h2,h3{font-family:"Archivo",system-ui,sans-serif;line-height:1.12;letter-spacing:-0.015em}
h1{font-size:clamp(2.4rem,6vw,4.2rem);font-weight:800}
h2{font-size:clamp(1.6rem,3.4vw,2.3rem);font-weight:700}
h3{font-size:1.15rem;font-weight:700}
.mono{font-family:"IBM Plex Mono",monospace;font-size:.92em}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
section{padding:72px 0}
.eyebrow{
  font-family:"IBM Plex Mono",monospace;
  font-size:.8rem;text-transform:uppercase;letter-spacing:.14em;
  color:var(--amber-deep);display:block;margin-bottom:14px;
}
.lead{font-size:1.15rem;color:var(--ink-soft);max-width:62ch}

/* ---------- header / nav ---------- */
header.site{
  position:sticky;top:0;z-index:50;
  background:rgba(246,245,241,.92);backdrop-filter: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:10px;font-family:"Archivo",sans-serif;font-weight:800;font-size:1.12rem;text-decoration:none;letter-spacing:-.01em}
.brand:hover{color:var(--ink)}
.eq{display:flex;align-items:flex-end;gap:2.5px;height:20px}
.eq span{width:4px;background:var(--amber);border-radius:2px;animation:eq 1.2s ease-in-out infinite}
.eq span:nth-child(1){height:35%;animation-delay:0s}
.eq span:nth-child(2){height:80%;animation-delay:.15s}
.eq span:nth-child(3){height:55%;animation-delay:.3s}
.eq span:nth-child(4){height:95%;animation-delay:.45s}
.eq span:nth-child(5){height:45%;animation-delay:.6s}
@keyframes eq{0%,100%{transform:scaleY(.55)}50%{transform:scaleY(1)}}
@media (prefers-reduced-motion:reduce){
  .eq span{animation:none}
  html{scroll-behavior:auto}
}
nav.links{display:flex;gap:26px;align-items:center}
nav.links a{text-decoration:none;font-size:.95rem;font-weight:500;color:var(--ink-soft)}
nav.links a[aria-current="page"]{color:var(--amber-deep);font-weight:700}
.menu-btn{display:none;background:none;border:1px solid var(--line);border-radius:8px;padding:8px 12px;font:inherit;cursor:pointer}
@media(max-width:820px){
  nav.links{display:none;position:absolute;top:68px;left:0;right:0;background:var(--paper);flex-direction:column;padding:18px 24px;border-bottom:1px solid var(--line);gap:16px;align-items:flex-start}
  nav.links.open{display:flex}
  .menu-btn{display:block}
}

/* ---------- hero ---------- */
.hero{padding:96px 0 80px;background:var(--ink);color:var(--paper);position:relative;overflow:hidden}
.hero .eyebrow{color:var(--amber)}
.hero h1{color:#fff;max-width:16ch}
.hero p{color:#c8cddb;max-width:58ch;margin-top:20px;font-size:1.15rem}
.hero-eq{display:flex;align-items:flex-end;gap:6px;height:64px;margin-top:44px}
.hero-eq span{width:10px;background:var(--amber);border-radius:4px;opacity:.9;animation:eq 1.6s ease-in-out infinite}
.hero-eq span:nth-child(odd){background:#3a445e}
.hero-eq span:nth-child(1){height:30%}.hero-eq span:nth-child(2){height:70%;animation-delay:.1s}
.hero-eq span:nth-child(3){height:45%;animation-delay:.2s}.hero-eq span:nth-child(4){height:90%;animation-delay:.3s}
.hero-eq span:nth-child(5){height:60%;animation-delay:.4s}.hero-eq span:nth-child(6){height:100%;animation-delay:.5s}
.hero-eq span:nth-child(7){height:50%;animation-delay:.6s}.hero-eq span:nth-child(8){height:75%;animation-delay:.7s}
.hero-eq span:nth-child(9){height:35%;animation-delay:.8s}.hero-eq span:nth-child(10){height:65%;animation-delay:.9s}

/* ---------- buttons ---------- */
.btn{
  display:inline-block;font-weight:700;font-family:"Archivo",sans-serif;
  padding:13px 26px;border-radius:999px;text-decoration:none;font-size:.98rem;
  transition:transform .15s ease, background .15s ease;
}
.btn:active{transform:scale(.97)}
.btn-amber{background:var(--amber);color:var(--ink)}
.btn-amber:hover{background:var(--amber-deep);color:#fff}
.btn-ghost{border:2px solid var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--amber);color:var(--ink)}
.hero .btn-ghost{border-color:#3a445e;color:#e8eaf1}
.btn-row{display:flex;gap:14px;flex-wrap:wrap;margin-top:34px}

/* ---------- cards / grids ---------- */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:40px}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;margin-top:40px}
@media(max-width:820px){.grid3,.grid2{grid-template-columns:1fr}}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px;
}
.card h3{margin-bottom:10px}
.card p{color:var(--slate);font-size:.98rem}
.card .tag{
  font-family:"IBM Plex Mono",monospace;font-size:.72rem;letter-spacing:.12em;
  text-transform:uppercase;color:var(--amber-deep);display:inline-block;margin-bottom:14px;
}

/* ---------- registry / data block ---------- */
.registry{
  background:var(--ink);color:#dfe3ee;border-radius:var(--radius);
  padding:34px;font-family:"IBM Plex Mono",monospace;font-size:.92rem;
}
.registry h2,.registry h3{color:#fff;font-family:"Archivo",sans-serif;margin-bottom:18px}
.registry dl{display:grid;grid-template-columns:max-content 1fr;gap:10px 26px}
.registry dt{color:var(--amber);white-space:nowrap}
.registry dd{word-break:break-word}
.registry a{color:#fff}
@media(max-width:640px){.registry dl{grid-template-columns:1fr}.registry dt{margin-top:8px}}

/* ---------- footer ---------- */
footer.site{background:var(--ink);color:#aeb5c6;margin-top:40px;padding:56px 0 36px;font-size:.92rem}
footer.site .cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:36px}
@media(max-width:820px){footer.site .cols{grid-template-columns:1fr}}
footer.site h3{color:#fff;font-size:.95rem;margin-bottom:14px}
footer.site a{color:#dfe3ee;text-decoration:none}
footer.site a:hover{color:var(--amber)}
footer.site ul{list-style:none}
footer.site li{margin-bottom:9px}
.footline{border-top:1px solid #2a3450;margin-top:42px;padding-top:22px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:.84rem;color:#8991a5}

/* ---------- prose pages (legal / about) ---------- */
.page-head{padding:70px 0 46px;border-bottom:1px solid var(--line)}
.prose{max-width:74ch;padding:56px 0}
.prose h2{margin:44px 0 14px;font-size:1.45rem}
.prose h3{margin:30px 0 10px}
.prose p,.prose li{color:var(--ink-soft);margin-bottom:14px}
.prose ul,.prose ol{padding-left:24px;margin-bottom:16px}
.prose .updated{font-family:"IBM Plex Mono",monospace;font-size:.82rem;color:var(--slate)}

/* ---------- misc ---------- */
.notice{
  border-left:4px solid var(--amber);background:#fdf3e3;
  padding:18px 22px;border-radius:0 10px 10px 0;margin:26px 0;color:var(--ink-soft);font-size:.95rem;
}
.contact-list{list-style:none;margin-top:30px}
.contact-list li{display:flex;gap:14px;margin-bottom:20px;align-items:baseline}
.contact-list .k{font-family:"IBM Plex Mono",monospace;font-size:.8rem;text-transform:uppercase;letter-spacing:.1em;color:var(--amber-deep);min-width:90px}
.divider{height:1px;background:var(--line);border:0}