/* ============================================================
   Quantum / Exporo — design tokens & shared components
   ============================================================ */

:root{
  --bg:            #0A0E1A;
  --bg-soft:       #0E1424;
  --surface:       #121A2E;
  --surface-2:     #17203A;
  --line:          #232D48;
  --text:          #EDEFF6;
  --text-muted:    #93A0BD;
  --text-faint:    #5C6786;

  --quantum:       #5B79FF;
  --quantum-soft:  #5B79FF22;
  --quantum-dim:   #3A4B99;
  --signal:        #F2B84B;
  --signal-soft:   #F2B84B1F;
  --good:          #4BC98A;

  --font-head: 'Space Grotesk', 'Segoe UI', sans-serif;
  --font-body: 'Inter', 'Segoe UI', sans-serif;
  --font-mono: 'IBM Plex Mono', 'Courier New', monospace;

  --maxw: 1180px;
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-body);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,.font-head{ font-family:var(--font-head); letter-spacing:-0.01em; }
.font-mono{ font-family:var(--font-mono); }

::selection{ background:var(--quantum); color:#fff; }

a{ color:inherit; }

:focus-visible{
  outline:2px solid var(--quantum);
  outline-offset:3px;
  border-radius:4px;
}

.wrap{ max-width:var(--maxw); margin-inline:auto; padding-inline:1.5rem; }
@media(min-width:768px){ .wrap{ padding-inline:2.5rem; } }

/* background texture */
.bg-grid{
  background-image:
    radial-gradient(circle at 15% 0%, #5B79FF14, transparent 45%),
    radial-gradient(circle at 90% 20%, #F2B84B12, transparent 40%),
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: auto, auto, 64px 64px, 64px 64px;
  background-color:var(--bg);
}
.bg-grid-faint{ opacity:.35; }

.panel{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:14px;
}

.btn{
  display:inline-flex; align-items:center; gap:.5rem;
  padding:.75rem 1.4rem;
  border-radius:9px;
  font-weight:600;
  font-size:.95rem;
  transition:transform .15s ease, background .2s ease, border-color .2s ease;
  white-space:nowrap;
}
.btn:active{ transform:translateY(1px); }
.btn-primary{
  background:var(--quantum);
  color:#fff;
}
.btn-primary:hover{ background:#6F8AFF; }
.btn-ghost{
  border:1px solid var(--line);
  color:var(--text);
  background:transparent;
}
.btn-ghost:hover{ border-color:var(--quantum-dim); background:var(--surface-2); }

.chip{
  display:inline-flex; align-items:center; gap:.4rem;
  border:1px solid var(--line);
  border-radius:999px;
  padding:.3rem .8rem;
  font-size:.78rem;
  color:var(--text-muted);
  font-family:var(--font-mono);
}

.stat-num{
  font-family:var(--font-mono);
  font-weight:600;
  color:var(--text);
}

/* ---- nav ---- */
.site-nav{
  position:sticky; top:0; z-index:50;
  background:rgba(10,14,26,.82);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-link{
  color:var(--text-muted);
  font-size:.92rem;
  transition:color .15s ease;
}
.nav-link:hover{ color:var(--text); }
.nav-link.active{ color:var(--text); }

/* language dropdown */
.lang-switch{ position:relative; }
.lang-btn{
  display:flex; align-items:center; gap:.4rem;
  font-family:var(--font-mono); font-size:.82rem;
  color:var(--text-muted);
  border:1px solid var(--line);
  border-radius:8px;
  padding:.4rem .6rem;
}
.lang-btn:hover{ color:var(--text); border-color:var(--quantum-dim); }
.lang-menu{
  position:absolute; right:0; top:calc(100% + 8px);
  background:var(--surface-2);
  border:1px solid var(--line);
  border-radius:10px;
  min-width:150px;
  overflow:hidden;
  box-shadow:0 12px 30px -10px #000a;
  opacity:0; visibility:hidden; transform:translateY(-6px);
  transition:opacity .15s ease, transform .15s ease, visibility .15s;
  z-index:60;
}
.lang-switch.open .lang-menu{ opacity:1; visibility:visible; transform:translateY(0); }
.lang-opt{
  display:flex; justify-content:space-between; align-items:center;
  width:100%; text-align:left;
  padding:.6rem .8rem;
  font-size:.85rem;
  color:var(--text-muted);
}
.lang-opt:hover{ background:var(--surface); color:var(--text); }
.lang-opt[aria-current="true"]{ color:var(--quantum); }

/* ---- hero graph ---- */
.node-canvas{ overflow:visible; }
.node-dot{ fill:var(--quantum); }
.node-dot.signal{ fill:var(--signal); }
.node-line{
  stroke:var(--quantum);
  stroke-width:1;
  opacity:.35;
}
@media (prefers-reduced-motion:no-preference){
  .node-pulse{ animation:pulse 3.2s ease-in-out infinite; }
  .node-pulse:nth-of-type(2n){ animation-delay:.6s; }
  .node-pulse:nth-of-type(3n){ animation-delay:1.2s; }
  .node-flow{ stroke-dasharray:4 7; animation:flow 4s linear infinite; }
  .float-card{ animation:floaty 6s ease-in-out infinite; }
}
@keyframes pulse{ 0%,100%{opacity:.55; r:3.5;} 50%{opacity:1; r:5;} }
@keyframes flow{ to{ stroke-dashoffset:-110; } }
@keyframes floaty{ 0%,100%{ transform:translateY(0);} 50%{ transform:translateY(-8px);} }

/* ---- bento feature grid ---- */
.bento-lg{ grid-row:span 2; }

/* ---- methodology ---- */
.step-line{
  background:linear-gradient(90deg, var(--quantum-dim), transparent);
  height:1px;
}

/* ---- cookie banner ---- */
#cookie-banner{
  position:fixed; left:0; right:0; bottom:0; z-index:100;
  background:var(--surface-2);
  border-top:1px solid var(--line);
  transform:translateY(110%);
  transition:transform .4s ease;
}
#cookie-banner.show{ transform:translateY(0); }

#cookie-modal{
  position:fixed; inset:0; z-index:110;
  display:none;
  align-items:center; justify-content:center;
  background:#04060cd9;
  padding:1.25rem;
}
#cookie-modal.show{ display:flex; }

.toggle{
  position:relative; width:42px; height:24px; border-radius:999px;
  background:var(--line); flex:none; cursor:pointer;
  transition:background .2s ease;
}
.toggle::after{
  content:''; position:absolute; top:3px; left:3px;
  width:18px; height:18px; border-radius:50%;
  background:var(--text); transition:transform .2s ease;
}
.toggle[data-on="true"]{ background:var(--quantum); }
.toggle[data-on="true"]::after{ transform:translateX(18px); }
.toggle[data-locked="true"]{ opacity:.55; cursor:not-allowed; }

/* legal pages */
.legal-body h2{ margin-top:2.2rem; margin-bottom:.6rem; font-size:1.15rem; }
.legal-body p, .legal-body li{ color:var(--text-muted); line-height:1.7; }
.legal-body ul{ list-style:disc; padding-left:1.2rem; margin:.6rem 0; }
.legal-body a{ color:var(--quantum); text-decoration:underline; text-decoration-color:var(--quantum-dim); }

[data-i18n], [data-i18n-html]{ }