/* ── Reset ─────────────────────────────────────────────────── */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}

:root{
  --bg:#06060f;
  --bg2:#0c0c1d;
  --surface:#111128;
  --surface2:#181838;
  --border:#222250;
  --primary:#a855f7;
  --primary-glow:#a855f766;
  --accent:#22d3ee;
  --accent-glow:#22d3ee55;
  --pink:#f472b6;
  --pink-glow:#f472b655;
  --green:#34d399;
  --green-glow:#34d39955;
  --gold:#fbbf24;
  --gold-glow:#fbbf2455;
  --text:#e8e8f0;
  --text-dim:#7a7a9e;
  --radius:14px;
  --radius-sm:8px;
  --mono:"SF Mono","Fira Code","JetBrains Mono","Cascadia Code",monospace;
  --sans:"Inter",system-ui,-apple-system,sans-serif;
  --ease:cubic-bezier(.4,0,.2,1);
}

html{font-size:16px;scroll-behavior:smooth}

body{
  font-family:var(--sans);
  background:var(--bg);
  color:var(--text);
  line-height:1.6;
  min-height:100vh;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}

a{color:var(--accent);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--primary)}
img,svg,canvas{display:block;max-width:100%}
button{font-family:inherit}

/* ── Animated BG ──────────────────────────────────────────── */
#bg-canvas{
  position:fixed;inset:0;z-index:0;
  pointer-events:none;opacity:.35;
}

/* ── Shell ─────────────────────────────────────────────────── */
.shell{
  position:relative;z-index:1;
  display:flex;flex-direction:column;min-height:100vh;
}

/* ── Nav ──────────────────────────────────────────────────── */
.nav{
  display:flex;align-items:center;justify-content:space-between;
  padding:.85rem 2rem;
  border-bottom:1px solid var(--border);
  backdrop-filter:blur(20px) saturate(1.4);
  background:rgba(6,6,15,.82);
  position:sticky;top:0;z-index:100;
}
.nav-logo{
  font-family:var(--mono);font-size:1.2rem;font-weight:800;
  letter-spacing:.06em;
  background:linear-gradient(135deg,var(--accent),var(--primary));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;
  text-shadow:none;
}
.nav-links{display:flex;gap:.25rem;list-style:none}
.nav-links a{
  font-size:.78rem;font-weight:600;
  text-transform:uppercase;letter-spacing:.09em;
  color:var(--text-dim);padding:.45rem .85rem;
  border-radius:var(--radius-sm);
  transition:all .2s var(--ease);
}
.nav-links a:hover{color:var(--accent);background:rgba(34,211,238,.06)}
.nav-links a.active{color:var(--accent);background:rgba(34,211,238,.1);
  box-shadow:0 0 12px var(--accent-glow)}

/* ── Hero ─────────────────────────────────────────────────── */
.hero{
  display:flex;flex-direction:column;
  align-items:center;justify-content:center;
  text-align:center;padding:5rem 2rem 3rem;gap:1.25rem;
}
.hero h1{
  font-family:var(--mono);
  font-size:clamp(2.2rem,5.5vw,4rem);font-weight:800;
  background:linear-gradient(135deg,var(--accent),var(--primary),var(--pink));
  background-size:200% 200%;
  animation:gradShift 6s ease infinite;
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;line-height:1.1;
}
.hero .sub{
  max-width:520px;color:var(--text-dim);font-size:1.05rem;
}

@keyframes gradShift{
  0%,100%{background-position:0% 50%}
  50%{background-position:100% 50%}
}

/* ── Buttons ──────────────────────────────────────────────── */
.btn{
  display:inline-flex;align-items:center;gap:.5rem;
  padding:.7rem 1.5rem;border:none;
  border-radius:var(--radius-sm);
  font-family:var(--mono);font-size:.8rem;font-weight:700;
  letter-spacing:.04em;cursor:pointer;
  transition:transform .15s var(--ease),box-shadow .25s var(--ease),
    background .25s var(--ease);
}
.btn:active{transform:scale(.96)}
.btn-primary{
  background:var(--primary);color:#fff;
  box-shadow:0 0 20px var(--primary-glow);
}
.btn-primary:hover{background:#9333ea;box-shadow:0 0 36px var(--primary-glow)}
.btn-accent{
  background:var(--accent);color:var(--bg);
  box-shadow:0 0 20px var(--accent-glow);
}
.btn-accent:hover{box-shadow:0 0 36px var(--accent-glow)}
.btn-ghost{
  background:transparent;color:var(--accent);
  border:1px solid var(--border);
}
.btn-ghost:hover{border-color:var(--accent);box-shadow:0 0 14px var(--accent-glow)}
.btn-sm{padding:.5rem 1rem;font-size:.72rem}

/* ── Hub Card Grid ────────────────────────────────────────── */
.hub-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(300px,1fr));
  gap:1.25rem;padding:0 2rem 3rem;
  max-width:1140px;margin:0 auto;width:100%;
}

.hub-card{
  position:relative;overflow:hidden;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:2rem 1.75rem 1.75rem;
  display:flex;flex-direction:column;gap:.75rem;
  transition:transform .25s var(--ease),box-shadow .3s var(--ease),
    border-color .3s var(--ease);
  text-decoration:none;color:inherit;
}
.hub-card::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 30% 20%,var(--card-glow,var(--accent-glow)),transparent 70%);
  opacity:0;transition:opacity .35s var(--ease);pointer-events:none;
}
.hub-card:hover{
  transform:translateY(-6px);
  border-color:var(--card-accent,var(--accent));
  box-shadow:0 12px 40px rgba(0,0,0,.4),0 0 20px var(--card-glow,var(--accent-glow));
}
.hub-card:hover::before{opacity:1}

.hub-card .icon{
  font-size:2.2rem;line-height:1;
  filter:drop-shadow(0 0 8px var(--card-glow,var(--accent-glow)));
}
.hub-card h3{
  font-family:var(--mono);font-size:1.1rem;font-weight:700;
  color:var(--card-accent,var(--accent));
}
.hub-card p{color:var(--text-dim);font-size:.88rem;flex:1}
.hub-card .tag{
  font-family:var(--mono);font-size:.65rem;font-weight:700;
  text-transform:uppercase;letter-spacing:.1em;
  padding:.25rem .6rem;border-radius:20px;
  border:1px solid var(--card-accent,var(--accent));
  color:var(--card-accent,var(--accent));
  align-self:flex-start;
  opacity:.7;
}

/* Card color variants */
.hub-card.cyan   {--card-accent:var(--accent);--card-glow:var(--accent-glow)}
.hub-card.purple {--card-accent:var(--primary);--card-glow:var(--primary-glow)}
.hub-card.pink   {--card-accent:var(--pink);--card-glow:var(--pink-glow)}
.hub-card.green  {--card-accent:var(--green);--card-glow:var(--green-glow)}
.hub-card.gold   {--card-accent:var(--gold);--card-glow:var(--gold-glow)}

/* ── Page Layout (for individual puzzle pages) ────────────── */
.page-header{
  text-align:center;padding:3rem 2rem 1.5rem;
}
.page-header h1{
  font-family:var(--mono);
  font-size:clamp(1.6rem,4vw,2.5rem);font-weight:800;
  margin-bottom:.5rem;
}
.page-header p{color:var(--text-dim);max-width:540px;margin:0 auto;font-size:.95rem}

.page-body{
  max-width:900px;margin:0 auto;
  padding:1rem 2rem 3rem;width:100%;
}

/* ── Controls Bar ─────────────────────────────────────────── */
.controls{
  display:flex;gap:.75rem;flex-wrap:wrap;
  align-items:center;justify-content:center;
  margin-bottom:1.5rem;
}
.controls input[type="number"],
.controls input[type="text"]{
  background:var(--surface2);
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  padding:.6rem 1rem;
  color:var(--text);font-family:var(--mono);
  font-size:.95rem;width:180px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  outline:none;
}
.controls input:focus{
  border-color:var(--accent);
  box-shadow:0 0 12px var(--accent-glow);
}

/* ── Viz Canvas ───────────────────────────────────────────── */
.viz-canvas{
  width:100%;aspect-ratio:16/10;
  border-radius:var(--radius);
  border:1px solid var(--border);
  background:var(--surface);
  cursor:crosshair;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.viz-canvas:hover{
  border-color:var(--primary);
  box-shadow:0 0 20px var(--primary-glow);
}
.viz-canvas.square{aspect-ratio:1/1;max-width:600px;margin:0 auto}

/* ── Output / Stats ───────────────────────────────────────── */
.stats{
  display:flex;gap:1.5rem;flex-wrap:wrap;
  justify-content:center;margin:1.25rem 0;
}
.stat{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-sm);
  padding:.65rem 1.2rem;text-align:center;
  min-width:100px;
}
.stat .val{
  font-family:var(--mono);font-size:1.25rem;font-weight:700;
  color:var(--accent);
}
.stat .lbl{
  font-size:.68rem;text-transform:uppercase;
  letter-spacing:.08em;color:var(--text-dim);margin-top:.15rem;
}

.sequence-out{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-sm);
  padding:1.25rem;margin-top:1.25rem;
  font-family:var(--mono);font-size:.8rem;
  color:var(--text-dim);line-height:1.8;
  max-height:240px;overflow-y:auto;
  word-break:break-all;white-space:pre-wrap;
}
.sequence-out::-webkit-scrollbar{width:6px}
.sequence-out::-webkit-scrollbar-track{background:var(--surface)}
.sequence-out::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}

/* ── Info Box ─────────────────────────────────────────────── */
.info-box{
  background:var(--surface);border:1px solid var(--border);
  border-left:3px solid var(--primary);
  border-radius:var(--radius-sm);
  padding:1.25rem 1.5rem;margin-bottom:1.5rem;
  font-size:.88rem;color:var(--text-dim);line-height:1.7;
}
.info-box strong{color:var(--text)}

/* ── Coming Soon ──────────────────────────────────────────── */
.coming-soon{
  display:flex;flex-direction:column;
  align-items:center;justify-content:center;
  text-align:center;min-height:60vh;
  gap:1.25rem;padding:4rem 2rem;
}
.coming-soon h1{
  font-family:var(--mono);
  font-size:clamp(2rem,5vw,3.5rem);
  color:var(--accent);text-shadow:0 0 24px var(--accent-glow);
}
.coming-soon p{color:var(--text-dim);max-width:440px;font-size:1.05rem}

.countdown{display:flex;gap:1.5rem;margin-top:1rem}
.countdown-unit{display:flex;flex-direction:column;align-items:center}
.countdown-unit .num{
  font-family:var(--mono);font-size:2.5rem;font-weight:700;
  color:var(--primary);text-shadow:0 0 20px var(--primary-glow);
}
.countdown-unit .label{
  font-size:.7rem;text-transform:uppercase;
  letter-spacing:.1em;color:var(--text-dim);
}

/* ── Teaser Grid ──────────────────────────────────────────── */
.teaser-grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));
  gap:1rem;max-width:800px;margin:2rem auto 0;padding:0 2rem;
}
.teaser-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-sm);padding:1.25rem;
  text-align:center;opacity:.55;
}
.teaser-card .icon{font-size:1.8rem;margin-bottom:.4rem}
.teaser-card h4{font-family:var(--mono);font-size:.85rem;color:var(--text-dim)}

/* ── Footer ───────────────────────────────────────────────── */
.footer{
  margin-top:auto;padding:1.75rem 2rem;
  text-align:center;font-size:.75rem;
  color:var(--text-dim);border-top:1px solid var(--border);
}
.footer a{color:var(--text-dim)}
.footer a:hover{color:var(--accent)}

/* ── Utilities ────────────────────────────────────────────── */
.sr-only{
  position:absolute;width:1px;height:1px;
  overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;
}
.mt-1{margin-top:.5rem}.mt-2{margin-top:1rem}.mt-3{margin-top:1.5rem}
.text-center{text-align:center}

/* ── Human Wing ───────────────────────────────────────────── */
#word-canvas{
  position:fixed;inset:0;z-index:0;
  pointer-events:none;overflow:hidden;
}
.word-drift{
  position:absolute;
  font-family:var(--sans);font-weight:300;
  color:var(--accent);opacity:0;
  white-space:nowrap;pointer-events:none;
  animation:wordFloat linear forwards;
}
@keyframes wordFloat{
  0%{opacity:0;transform:translateY(0)}
  8%{opacity:.18}
  85%{opacity:.18}
  100%{opacity:0;transform:translateY(-30vh)}
}
@keyframes breathe{
  0%,100%{opacity:.12}
  50%{opacity:.22}
}

.human-card{
  background:rgba(17,17,40,.6);
  backdrop-filter:blur(16px) saturate(1.3);
  border:1px solid rgba(34,211,238,.1);
  border-radius:var(--radius);
  padding:2.5rem 2.25rem 2rem;
  margin-bottom:1.75rem;
  color:var(--text);line-height:1.9;font-size:.95rem;
}
.human-card h2{
  font-family:var(--mono);font-size:1rem;font-weight:700;
  margin:1.5rem 0 .5rem;
}
.human-card h2:first-child{margin-top:0}
.human-card .question{
  font-size:1.15rem;font-style:italic;
  color:var(--text);line-height:1.7;
  padding:1rem 0;
}
.human-card .question em{font-style:normal;color:var(--accent)}
.human-card .whisper{
  color:var(--text-dim);font-size:.9rem;line-height:1.8;
}
.human-card .whisper p{margin:.4rem 0}

.human-plaque{
  background:rgba(17,17,40,.5);
  border:1px solid rgba(34,211,238,.12);
  border-radius:var(--radius-sm);
  padding:1.25rem 1.5rem;margin-top:1.5rem;
  font-family:var(--mono);font-size:.78rem;
  color:var(--text-dim);line-height:1.8;
}
.human-plaque .row{display:flex;justify-content:space-between;padding:.2rem 0}
.human-plaque .val{color:var(--text)}

.reflect-box{
  text-align:center;margin:2rem 0;
}
.reflect-btn{
  background:transparent;border:1px solid rgba(34,211,238,.2);
  color:var(--text-dim);padding:.6rem 1.5rem;
  border-radius:var(--radius-sm);font-family:var(--mono);
  font-size:.78rem;cursor:pointer;letter-spacing:.06em;
  transition:all .3s var(--ease);
}
.reflect-btn:hover{
  border-color:var(--accent);color:var(--accent);
  box-shadow:0 0 12px var(--accent-glow);
}
.reflect-area{
  display:none;margin-top:1rem;
}
.reflect-area.open{display:block}
.reflect-area p{
  color:var(--text-dim);font-size:.88rem;
  font-style:italic;margin-bottom:.75rem;
}
.reflect-area textarea{
  width:100%;max-width:480px;min-height:100px;
  background:rgba(17,17,40,.5);border:1px solid var(--border);
  border-radius:var(--radius-sm);padding:1rem;
  color:var(--text);font-family:var(--sans);font-size:.9rem;
  resize:vertical;outline:none;
  transition:border-color .2s;
}
.reflect-area textarea:focus{border-color:rgba(34,211,238,.3)}
.reflect-area textarea::placeholder{color:var(--text-dim);opacity:.4}

.human-hub-grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));
  gap:1.25rem;padding:0 2rem 3rem;max-width:1100px;margin:0 auto;width:100%;
}
.human-hub-card{
  background:rgba(17,17,40,.5);
  backdrop-filter:blur(12px);
  border:1px solid rgba(34,211,238,.08);
  border-radius:var(--radius);
  padding:1.5rem;display:flex;flex-direction:column;gap:.5rem;
  text-decoration:none;color:inherit;
  transition:transform .25s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.human-hub-card:hover{
  transform:translateY(-4px);
  border-color:rgba(34,211,238,.25);
  box-shadow:0 8px 32px rgba(0,0,0,.3),0 0 12px var(--accent-glow);
}
.human-hub-card .icon{font-size:1.6rem;line-height:1;opacity:.7}
.human-hub-card h3{font-family:var(--mono);font-size:.9rem;font-weight:600;color:var(--accent);opacity:.85}
.human-hub-card p{font-size:.82rem;color:var(--text-dim);line-height:1.5;flex:1}
.human-hub-card .domain-tag{
  font-family:var(--mono);font-size:.6rem;
  text-transform:uppercase;letter-spacing:.1em;
  color:var(--text-dim);opacity:.6;
}

/* ── Responsive ───────────────────────────────────────────── */
@media(max-width:640px){
  .nav{flex-direction:column;gap:.6rem;padding:.75rem 1rem}
  .nav-links{gap:.15rem;flex-wrap:wrap;justify-content:center}
  .nav-links a{padding:.35rem .6rem;font-size:.7rem}
  .hero{padding:3rem 1.5rem 2rem}
  .hub-grid{padding:0 1rem 2rem;gap:1rem;grid-template-columns:1fr}
  .page-body{padding:1rem 1rem 2rem}
  .controls{gap:.5rem}
  .controls input{width:140px}
  .countdown{gap:1rem}
  .countdown-unit .num{font-size:1.75rem}
}