/* ==========================================================================
   CYBERIATNIX — design tokens
   Motif: network / signal-path. Dark ops-console surface, one cyan signal
   accent, one amber "access-granted" accent used only for the free tier.
   ========================================================================== */

:root{
  --bg:            #0a0e14;
  --bg-raised:     #10161f;
  --bg-raised-2:   #141b26;
  --line:          #1f2b3a;
  --line-soft:     #17202c;
  --text:          #e7ecf3;
  --text-dim:      #97a4b8;
  --text-faint:    #5c6b80;
  --signal:        #3fe1c7;
  --signal-dim:    #235f56;
  --access:        #f2a93b;
  --danger:        #ff6b6b;

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

  --max: 1180px;
  --radius: 3px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4{ font-family:var(--font-display); font-weight:600; margin:0; line-height:1.15; letter-spacing:-0.01em; }
p{ margin:0; }
button{ font-family:inherit; cursor:pointer; }

.wrap{ max-width:var(--max); margin:0 auto; padding:0 28px; }

:focus-visible{ outline:2px solid var(--signal); outline-offset:3px; }

@media (prefers-reduced-motion: reduce){
  *{ animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; scroll-behavior:auto !important; }
}

/* ---- background grid texture ---- */
.grid-bg{
  background-image:
    linear-gradient(to right, var(--line-soft) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line-soft) 1px, transparent 1px);
  background-size: 48px 48px;
}

/* ---- top nav ---- */
.site-header{
  position:sticky; top:0; z-index:50;
  background:rgba(10,14,20,0.88);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.nav{
  display:flex; align-items:center; justify-content:space-between;
  padding:18px 28px;
}
.logo{
  font-family:var(--font-mono); font-size:16px; letter-spacing:0.02em;
  display:flex; align-items:center; gap:9px; color:var(--text);
}
.logo .dot{
  width:8px; height:8px; border-radius:50%; background:var(--signal);
  box-shadow:0 0 8px 1px var(--signal);
}
.nav-links{ display:flex; gap:32px; align-items:center; }
.nav-links a{
  font-size:14px; color:var(--text-dim); font-family:var(--font-mono);
  transition:color .15s ease; position:relative;
}
.nav-links a:hover, .nav-links a.active{ color:var(--signal); }
.nav-cta{
  border:1px solid var(--signal-dim); color:var(--signal) !important;
  padding:8px 16px; border-radius:var(--radius);
}
.nav-cta:hover{ background:var(--signal); color:var(--bg) !important; }
.nav-toggle{
  display:none; background:none; border:1px solid var(--line); color:var(--text);
  padding:8px 10px; border-radius:var(--radius);
}

@media (max-width: 860px){
  .nav-toggle{ display:block; }
  .nav-links{
    position:absolute; top:100%; left:0; right:0;
    background:var(--bg-raised); border-bottom:1px solid var(--line);
    flex-direction:column; align-items:flex-start; gap:0;
    max-height:0; overflow:hidden; transition:max-height .25s ease;
  }
  .nav-links.open{ max-height:420px; }
  .nav-links a{ padding:16px 28px; width:100%; border-bottom:1px solid var(--line-soft); }
}

/* ---- hero ---- */
.hero{
  position:relative; overflow:hidden;
  padding:96px 0 84px;
  border-bottom:1px solid var(--line);
}
#hero-canvas{
  position:absolute; inset:0; width:100%; height:100%;
  opacity:0.55;
}
.hero-inner{ position:relative; z-index:2; max-width:680px; }
.hero-eyebrow{
  font-family:var(--font-mono); font-size:13px; color:var(--signal);
  margin-bottom:18px; display:flex; align-items:center; gap:10px;
}
.hero-eyebrow .rule{ width:28px; height:1px; background:var(--signal-dim); }
.hero h1{
  font-size:clamp(2.1rem, 4.6vw, 3.4rem);
  margin-bottom:22px;
  color:var(--text);
}
.hero p.lead{
  font-size:1.08rem; color:var(--text-dim); max-width:520px; margin-bottom:34px;
}
.hero-actions{ display:flex; gap:14px; flex-wrap:wrap; }

/* ---- buttons ---- */
.btn{
  display:inline-flex; align-items:center; gap:8px;
  padding:13px 24px; border-radius:var(--radius);
  font-size:14px; font-weight:600; font-family:var(--font-body);
  border:1px solid transparent; transition:all .15s ease;
}
.btn-primary{ background:var(--signal); color:#04211c; }
.btn-primary:hover{ background:#5cebd4; }
.btn-outline{ border-color:var(--line); color:var(--text); }
.btn-outline:hover{ border-color:var(--signal-dim); color:var(--signal); }
.btn-block{ width:100%; justify-content:center; }
.btn-sm{ padding:9px 16px; font-size:13px; }

/* ---- sections ---- */
section{ padding:88px 0; }
.section-head{ margin-bottom:44px; max-width:640px; }
.section-head h2{ font-size:clamp(1.6rem,3vw,2.2rem); margin-bottom:14px; }
.section-head p{ color:var(--text-dim); font-size:1rem; }
.section-tag{
  font-family:var(--font-mono); font-size:12.5px; color:var(--text-faint);
  margin-bottom:12px; display:block;
}

.split{ display:grid; grid-template-columns:1fr 1fr; gap:64px; align-items:center; }
@media (max-width:820px){ .split{ grid-template-columns:1fr; gap:32px; } }

/* ---- who-we-are / mission ---- */
.copy-block p{ color:var(--text-dim); margin-bottom:16px; font-size:1.02rem; }
.copy-block img{ border:1px solid var(--line); border-radius:var(--radius); }

/* ---- benefits ---- */
.benefits-grid{
  display:grid; grid-template-columns:repeat(4,1fr); gap:1px;
  background:var(--line); border:1px solid var(--line);
}
@media (max-width:900px){ .benefits-grid{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:520px){ .benefits-grid{ grid-template-columns:1fr; } }
.benefit{ background:var(--bg); padding:32px 26px; }
.benefit .icon{ width:34px; height:34px; margin-bottom:20px; color:var(--signal); }
.benefit h3{ font-size:1.05rem; margin-bottom:10px; }
.benefit p{ color:var(--text-dim); font-size:0.92rem; }

/* ---- product / collection cards ---- */
.tier-grid{
  display:grid; grid-template-columns:repeat(5,1fr); gap:1px;
  background:var(--line); border:1px solid var(--line); margin-bottom:36px;
}
@media (max-width:980px){ .tier-grid{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:560px){ .tier-grid{ grid-template-columns:1fr; } }

.catalog-grid{
  display:grid; grid-template-columns:repeat(3,1fr); gap:1px;
  background:var(--line); border:1px solid var(--line);
}
@media (max-width:900px){ .catalog-grid{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:560px){ .catalog-grid{ grid-template-columns:1fr; } }

.card{
  background:var(--bg-raised); padding:28px 24px;
  display:flex; flex-direction:column; height:100%;
}
.card-id{ font-family:var(--font-mono); font-size:12px; color:var(--text-faint); margin-bottom:14px; }
.card h3{ font-size:1.15rem; margin-bottom:8px; }
.card .tagline{ color:var(--text-dim); font-size:0.9rem; margin-bottom:20px; flex-grow:1; }
.card .price{ font-family:var(--font-mono); font-size:1.5rem; color:var(--signal); margin-bottom:18px; }
.card .price.free{ color:var(--access); }
.card-thumb{
  width:100%; aspect-ratio:16/10; margin-bottom:18px; border:1px solid var(--line);
  border-radius:var(--radius); overflow:hidden; background:var(--bg-raised-2);
}
.card-thumb img{ width:100%; height:100%; object-fit:cover; }

.view-more-wrap{ text-align:center; }

/* ---- free guide callout ---- */
.callout{
  border:1px solid var(--signal-dim); background:var(--bg-raised);
  padding:56px; border-radius:var(--radius);
  display:flex; align-items:center; justify-content:space-between; gap:32px; flex-wrap:wrap;
}
.callout h2{ font-size:1.7rem; margin-bottom:10px; max-width:460px; }
.callout p{ color:var(--text-dim); max-width:420px; }

/* ---- faq ---- */
.faq-item{ border-bottom:1px solid var(--line); }
.faq-q{
  width:100%; text-align:left; background:none; border:none; color:var(--text);
  padding:22px 0; display:flex; justify-content:space-between; align-items:center;
  font-size:1.02rem; font-weight:500; font-family:var(--font-body);
}
.faq-q .plus{ font-family:var(--font-mono); color:var(--signal); flex-shrink:0; margin-left:20px; transition:transform .2s ease; }
.faq-item.open .plus{ transform:rotate(45deg); }
.faq-a{ max-height:0; overflow:hidden; transition:max-height .25s ease; }
.faq-a-inner{ padding:0 0 22px; color:var(--text-dim); max-width:680px; }
.faq-cat{ font-family:var(--font-mono); font-size:12.5px; color:var(--signal); margin:34px 0 4px; }
.faq-cat:first-child{ margin-top:0; }

/* ---- footer ---- */
.site-footer{ border-top:1px solid var(--line); padding:64px 0 32px; background:var(--bg-raised); }
.footer-grid{ display:grid; grid-template-columns:1.3fr 1fr 1fr; gap:48px; margin-bottom:48px; }
@media (max-width:760px){ .footer-grid{ grid-template-columns:1fr; gap:36px; } }
.footer-col h4{ font-family:var(--font-mono); font-size:13px; color:var(--text-faint); margin-bottom:18px; }
.footer-col li{ margin-bottom:11px; }
.footer-col a{ color:var(--text-dim); font-size:0.92rem; }
.footer-col a:hover{ color:var(--signal); }
.footer-contact p{ color:var(--text-dim); font-size:0.92rem; margin-bottom:8px; }
.footer-social{ display:flex; gap:14px; margin-top:18px; }
.footer-social a{
  width:34px; height:34px; border:1px solid var(--line); border-radius:50%;
  display:flex; align-items:center; justify-content:center; color:var(--text-dim);
}
.footer-social a:hover{ border-color:var(--signal-dim); color:var(--signal); }
.footer-bottom{
  border-top:1px solid var(--line); padding-top:24px;
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px;
  font-size:0.82rem; color:var(--text-faint); font-family:var(--font-mono);
}

/* ---- generic page hero (secondary pages) ---- */
.page-hero{ padding:64px 0 48px; border-bottom:1px solid var(--line); }
.page-hero .hero-eyebrow{ margin-bottom:14px; }
.page-hero h1{ font-size:clamp(1.8rem,4vw,2.6rem); }
.page-hero p{ color:var(--text-dim); margin-top:16px; max-width:560px; }

/* ---- legal pages ---- */
.legal-body{ max-width:760px; }
.legal-body h2{ font-size:1.3rem; margin:40px 0 14px; }
.legal-body h2:first-child{ margin-top:0; }
.legal-body p{ color:var(--text-dim); margin-bottom:14px; }
.legal-body ul{ margin-bottom:14px; }
.legal-body li{ color:var(--text-dim); padding-left:18px; position:relative; margin-bottom:8px; }
.legal-body li::before{ content:'—'; position:absolute; left:0; color:var(--text-faint); }
.legal-body strong{ color:var(--text); }
.legal-updated{ font-family:var(--font-mono); font-size:13px; color:var(--text-faint); margin-bottom:36px; }

/* ---- contact / about ---- */
.info-grid{ display:grid; grid-template-columns:1fr 1fr; gap:1px; background:var(--line); border:1px solid var(--line); }
@media (max-width:760px){ .info-grid{ grid-template-columns:1fr; } }
.info-cell{ background:var(--bg-raised); padding:30px; }
.info-cell h4{ font-family:var(--font-mono); font-size:12.5px; color:var(--text-faint); margin-bottom:10px; }
.info-cell p, .info-cell a{ color:var(--text-dim); font-size:0.98rem; }

form.contact-form{ display:flex; flex-direction:column; gap:18px; max-width:520px; }
.field label{ display:block; font-family:var(--font-mono); font-size:12.5px; color:var(--text-faint); margin-bottom:8px; }
.field input, .field textarea{
  width:100%; background:var(--bg-raised); border:1px solid var(--line); color:var(--text);
  padding:12px 14px; border-radius:var(--radius); font-family:var(--font-body); font-size:0.95rem;
}
.field textarea{ min-height:120px; resize:vertical; }
.field input:focus, .field textarea:focus{ border-color:var(--signal-dim); }
.form-note{ font-size:0.85rem; color:var(--text-faint); }

/* ---- curriculum ---- */
.module-row{
  border:1px solid var(--line); border-radius:var(--radius); padding:26px 28px; margin-bottom:14px;
  display:flex; justify-content:space-between; gap:24px; align-items:flex-start; flex-wrap:wrap;
}
.module-row .name{ font-size:1.05rem; margin-bottom:6px; }
.module-row .price{ font-family:var(--font-mono); color:var(--signal); font-size:0.95rem; white-space:nowrap; }
.module-row .modules-list{ color:var(--text-dim); font-size:0.88rem; margin-top:10px; }
.module-row .modules-list span{ display:inline-block; margin-right:14px; }

/* ---- product page ---- */
.product-hero{ padding:64px 0 40px; border-bottom:1px solid var(--line); }
.product-grid{ display:grid; grid-template-columns:1.1fr 0.9fr; gap:56px; }
@media (max-width:860px){ .product-grid{ grid-template-columns:1fr; } }
.product-thumb{ border:1px solid var(--line); border-radius:var(--radius); overflow:hidden; aspect-ratio:4/3; }
.product-price-card{
  border:1px solid var(--line); border-radius:var(--radius); padding:28px; background:var(--bg-raised);
  position:sticky; top:100px;
}
.product-price-card .price{ font-family:var(--font-mono); font-size:2.1rem; color:var(--signal); margin-bottom:6px; }
.product-price-card .price.free{ color:var(--access); }
.product-price-card .fmt{ color:var(--text-faint); font-size:0.85rem; margin-bottom:22px; }
.product-meta-list{ margin-top:22px; border-top:1px solid var(--line); padding-top:18px; }
.product-meta-list li{ display:flex; justify-content:space-between; font-size:0.88rem; color:var(--text-dim); margin-bottom:10px; font-family:var(--font-mono); }
.product-meta-list li span:first-child{ color:var(--text-faint); }
.module-list li{
  border-bottom:1px solid var(--line); padding:16px 0; display:flex; gap:14px; color:var(--text-dim); font-size:0.95rem;
}
.module-list li .n{ font-family:var(--font-mono); color:var(--signal); flex-shrink:0; }

/* ---- loading page ---- */
.loading-wrap{
  min-height:80vh; display:flex; flex-direction:column; align-items:center; justify-content:center;
  text-align:center; padding:40px 28px;
}
.spinner{
  width:52px; height:52px; border-radius:50%;
  border:2px solid var(--line); border-top-color:var(--signal);
  animation:spin 0.9s linear infinite; margin-bottom:28px;
}
@keyframes spin{ to{ transform:rotate(360deg); } }
.loading-wrap p{ color:var(--text-dim); font-family:var(--font-mono); font-size:0.9rem; }
.loading-fallback{ display:none; margin-top:24px; }

/* ---- misc ---- */
.eyebrow-list{ display:flex; gap:10px; flex-wrap:wrap; margin-top:20px; }
.chip{ font-family:var(--font-mono); font-size:12px; color:var(--text-dim); border:1px solid var(--line); padding:6px 12px; border-radius:20px; }
.small-print{ color:var(--text-faint); font-size:0.82rem; }
.center{ text-align:center; }

/* Text-only introduction after removing the homepage images. */
.home-intro .copy-block{ max-width:800px; }