:root{
    --cyan-1:#0f2a4a;
    --cyan-2:#123a63;
    --cyan-3:#194f82;
    --ink:#f4eedd;
    --muted:#a9c0d8;
    --amber:#e8ab3e;
    --rust:#d9663b;
    --line: rgba(244,238,221,0.22);
    --line-soft: rgba(244,238,221,0.12);
    --radius: 2px;
  }

  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}

  @media (prefers-reduced-motion: reduce){
    *{animation-duration:0.01ms !important; animation-iteration-count:1 !important; transition-duration:0.01ms !important; scroll-behavior:auto !important;}
  }

  body{
    margin:0;
    background:
      linear-gradient(180deg, var(--cyan-1), var(--cyan-1) 40%, #0c2340 100%);
    color:var(--ink);
    font-family:"IBM Plex Sans", sans-serif;
    line-height:1.65;
    min-height:100vh;
    position:relative;
  }

  /* faint blueprint grid */
  body::before{
    content:"";
    position:fixed;
    inset:0;
    pointer-events:none;
    z-index:0;
    background-image:
      linear-gradient(var(--line-soft) 1px, transparent 1px),
      linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
    background-size: 42px 42px;
    opacity:0.5;
  }

  a{color:inherit;}

  .wrap{width:min(1160px, calc(100% - 2.4rem)); margin:0 auto; position:relative; z-index:1;}
  @media (max-width: 860px){
    .wrap{width:min(1160px, calc(100% - 1.4rem));}
  }

  .mono{font-family:"IBM Plex Mono", monospace;}

  .eyebrow{
    font-family:"IBM Plex Mono", monospace;
    font-size:0.74rem;
    letter-spacing:0.16em;
    text-transform:uppercase;
    color:var(--amber);
    display:flex;
    align-items:center;
    gap:0.55rem;
    margin:0 0 0.9rem;
  }
  .eyebrow::before{
    content:"";
    width:1.1rem;
    height:1px;
    background:var(--amber);
    display:inline-block;
  }

  /* corner registration marks */
  .crop{
    position:absolute;
    width:16px;
    height:16px;
    z-index:2;
    opacity:0.55;
    pointer-events:none;
  }
  .crop::before,.crop::after{content:"";position:absolute;background:var(--muted);}
  .crop::before{width:100%; height:1px; top:50%;}
  .crop::after{height:100%; width:1px; left:50%;}
  .crop.tl{top:14px; left:14px;}
  .crop.tr{top:14px; right:14px;}
  .crop.bl{bottom:14px; left:14px;}
  .crop.br{bottom:14px; right:14px;}

  /* NAV */
  .nav{
    position:sticky; top:0; z-index:40;
    backdrop-filter: blur(14px);
    background: rgba(15,42,74,0.92);
    border-bottom:1px solid var(--line);
  }
  .nav-bar,
  .nav .wrap{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:1rem;
    padding:0.85rem 0;
    position:relative;
  }
  .logo{
    display:flex; align-items:baseline; gap:0.35rem;
    font-family:"Space Grotesk", sans-serif;
    font-weight:700; font-size:1.15rem; letter-spacing:-0.01em;
    text-decoration:none; color:var(--ink);
    z-index:2;
  }
  .logo .glyph{color:var(--amber); font-size:1.05em;}
  .navlinks{
    display:flex;
    flex-wrap:wrap;
    gap:1.15rem;
    font-size:0.86rem;
    font-family:"IBM Plex Mono",monospace;
  }
  .navlinks a{
    text-decoration:none;
    color:var(--muted);
    transition:color .2s ease;
  }
  .navlinks a:hover{color:var(--amber);}

  .nav-toggle{
    display:none;
    width:2.6rem;
    height:2.6rem;
    padding:0;
    border:1px solid var(--line);
    background:rgba(9,28,50,0.65);
    color:var(--ink);
    cursor:pointer;
    align-items:center;
    justify-content:center;
    flex-direction:column;
    gap:5px;
    z-index:2;
  }
  .nav-toggle span{
    display:block;
    width:1.1rem;
    height:1.5px;
    background:var(--amber);
    transition:transform .2s ease, opacity .2s ease;
  }
  .nav-toggle[aria-expanded="true"] span:nth-child(1){
    transform:translateY(6.5px) rotate(45deg);
  }
  .nav-toggle[aria-expanded="true"] span:nth-child(2){ opacity:0; }
  .nav-toggle[aria-expanded="true"] span:nth-child(3){
    transform:translateY(-6.5px) rotate(-45deg);
  }

  /* HERO */
  .hero{
    position:relative;
    padding:4.6rem 0 3.6rem;
    border-bottom:1px solid var(--line);
    overflow:hidden;
  }
  .hero-grid{
    display:grid;
    grid-template-columns: 1.05fr 1fr;
    gap:2.5rem;
    align-items:center;
  }
  .hero-copy h1{
    font-family:"Space Grotesk", sans-serif;
    font-weight:700;
    font-size:clamp(2.5rem, 4.6vw, 3.6rem);
    line-height:1.04;
    letter-spacing:-0.02em;
    margin:0 0 1rem;
  }
  .hero-copy h1 .accent{color:var(--amber);}
  .hero-copy p.lead{
    color:var(--muted);
    font-size:1.08rem;
    max-width:34rem;
    margin:0 0 1.6rem;
  }
  .cta-row{display:flex; flex-wrap:wrap; gap:0.75rem;}
  .btn{
    display:inline-flex; align-items:center; gap:0.5rem;
    text-decoration:none;
    padding:0.8rem 1.2rem;
    font-family:"IBM Plex Mono", monospace;
    font-weight:500; font-size:0.88rem;
    border:1px solid var(--line);
    border-radius:var(--radius);
    transition:transform .18s ease, background .18s ease, border-color .18s ease;
  }
  .btn:hover{transform:translateY(-2px);}
  .btn-primary{background:var(--amber); border-color:var(--amber); color:#1c1204;}
  .btn-primary:hover{background:#f2bd5f;}
  .btn-ghost{background:transparent; color:var(--ink);}
  .btn-ghost:hover{border-color:var(--muted);}

  /* blueprint diagram */
  .blueprint{
    position:relative;
    border:1px solid var(--line);
    background:rgba(9,28,50,0.55);
    padding:0.6rem;
  }
  .blueprint svg{width:100%; height:auto; display:block;}

  /* SECTIONS */
  section{padding:4.6rem 0; border-bottom:1px solid var(--line); position:relative;}
  section:last-of-type{border-bottom:none;}
  h2{
    font-family:"Space Grotesk", sans-serif;
    font-weight:700;
    font-size:clamp(1.7rem, 3.2vw, 2.25rem);
    letter-spacing:-0.015em;
    margin:0 0 0.55rem;
  }
  .lead{margin:0; color:var(--muted); max-width:36rem; font-size:1.02rem;}
  .section-head{margin-bottom:2.2rem;}

  .grid{display:grid; gap:1rem; grid-template-columns:repeat(auto-fit, minmax(230px, 1fr));}

  .tile{
    position:relative;
    padding:1.4rem 1.3rem;
    background:linear-gradient(160deg, rgba(25,79,130,0.35), rgba(15,42,74,0.35));
    border:1px solid var(--line);
    transition:border-color .2s ease, transform .2s ease;
  }
  .tile:hover{border-color:var(--amber); transform:translateY(-3px);}
  .tile .tag{
    font-family:"IBM Plex Mono", monospace;
    font-size:0.7rem;
    letter-spacing:0.1em;
    color:var(--amber);
    text-transform:uppercase;
    display:block;
    margin-bottom:0.5rem;
  }
  .tile h3{margin:0 0 0.4rem; font-size:1.03rem; font-weight:600; font-family:"Space Grotesk", sans-serif;}
  .tile p, .tile li{margin:0; color:var(--muted); font-size:0.94rem;}
  .tile ul{margin:0; padding-left:1.05rem; display:grid; gap:0.4rem;}
  .tile code{color:var(--amber); font-family:"IBM Plex Mono", monospace; font-size:0.88em;}

  /* code blocks */
  pre{
    background:#081c33;
    border:1px solid var(--line);
    padding:1.05rem 1.2rem;
    overflow-x:auto;
    margin:0 0 0.9rem;
    font-family:"IBM Plex Mono", monospace;
    font-size:0.88rem;
    color:#cfe6d4;
    border-left:2px solid var(--amber);
  }
  pre .prompt{color:var(--amber);}
  .install-stack{display:grid; gap:0.9rem; max-width:640px;}

  /* FLOW / build sequence */
  .flow{display:grid; gap:0;}
  .flow-item{
    display:grid;
    grid-template-columns: 5.2rem 1fr;
    gap:1.2rem;
    padding:1.5rem 0;
    border-top:1px solid var(--line);
  }
  .flow-item:last-child{border-bottom:1px solid var(--line);}
  .flow-step{
    font-family:"IBM Plex Mono", monospace;
    font-size:0.78rem;
    letter-spacing:0.06em;
    color:var(--amber);
    padding-top:0.15rem;
  }
  .flow-step .n{display:block; font-family:"Space Grotesk", sans-serif; font-size:1.5rem; font-weight:700; color:var(--ink); line-height:1;}
  .flow-item h3{margin:0 0 0.3rem; font-size:1.05rem; font-family:"Space Grotesk", sans-serif;}
  .flow-item p{margin:0; color:var(--muted);}
  .flow-item code{color:var(--amber); font-family:"IBM Plex Mono", monospace;}

  /* AUTHOR / spec plate */
  .plate{
    display:grid;
    grid-template-columns: minmax(150px, 190px) 1fr;
    gap:2rem;
    align-items:center;
    padding:1.6rem;
    border:1px solid var(--line);
    background:linear-gradient(135deg, rgba(232,171,62,0.07), rgba(15,42,74,0.4));
  }
  .avatar-frame{
    position:relative;
    aspect-ratio:1;
    border:1px solid var(--amber);
    padding:6px;
  }
  .avatar-frame::before, .avatar-frame::after{
    content:""; position:absolute; width:8px; height:8px; border:1px solid var(--amber); background:var(--cyan-1);
  }
  .avatar-frame::before{top:-4px; left:-4px;}
  .avatar-frame::after{bottom:-4px; right:-4px;}
  .avatar-frame img{width:100%; height:100%; object-fit:cover; object-position:center 25%; display:block;}
  .avatar-fallback{
    width:100%; height:100%;
    display:flex; align-items:center; justify-content:center;
    font-family:"Space Grotesk", sans-serif;
    font-weight:700; font-size:2.4rem; color:var(--amber);
    background:#081c33;
  }
  .plate-copy .name{
    font-family:"Space Grotesk", sans-serif; font-weight:700;
    font-size:clamp(1.35rem, 2.6vw, 1.75rem); letter-spacing:-0.02em; margin:0 0 0.2rem;
  }
  .plate-copy .role{margin:0 0 0.8rem; color:var(--amber); font-family:"IBM Plex Mono", monospace; font-size:0.85rem; letter-spacing:0.04em;}
  .plate-copy p{margin:0; color:var(--muted); max-width:36rem;}
  .plate-copy .site{
    display:inline-block; margin-top:1rem; text-decoration:none;
    font-family:"IBM Plex Mono", monospace; font-size:0.85rem;
    color:var(--ink); border-bottom:1px solid var(--amber); padding-bottom:0.15rem;
  }

  footer{
    padding:1.8rem 0 2.6rem;
    color:var(--muted);
    font-family:"IBM Plex Mono", monospace;
    font-size:0.8rem;
    display:flex; flex-wrap:wrap; justify-content:space-between; gap:0.6rem;
  }
  footer a{text-decoration:none; border-bottom:1px solid rgba(232,171,62,0.5); color:var(--ink);}

  /* ADMIN GALLERY */
  .shot-grid{
    display:grid;
    gap:1rem;
    grid-template-columns:repeat(2, minmax(0, 1fr));
    margin-top:1.6rem;
  }
  .shot{
    position:relative;
    border:1px solid var(--line);
    background:rgba(9,28,50,0.55);
    padding:0.55rem;
    transition:border-color .2s ease, transform .2s ease;
  }
  .shot:hover{border-color:var(--amber); transform:translateY(-3px);}
  .shot img{
    width:100%;
    height:auto;
    display:block;
    border:1px solid var(--line-soft);
    background:#081c33;
  }
  .shot figcaption{
    display:flex;
    align-items:baseline;
    justify-content:space-between;
    gap:0.75rem;
    padding:0.7rem 0.25rem 0.15rem;
    font-family:"IBM Plex Mono", monospace;
    font-size:0.78rem;
    letter-spacing:0.04em;
  }
  .shot figcaption .label{color:var(--amber); text-transform:uppercase;}
  .shot figcaption .desc{color:var(--muted); text-align:right;}
  .admin-run{
    display:grid;
    gap:0.9rem;
    max-width:640px;
    margin-top:1.4rem;
  }

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

  @media (max-width: 860px){
    .crop{display:none;}
    .hero{padding:2.8rem 0 2.2rem;}
    .hero-grid{grid-template-columns:1fr;}
    .hero-copy h1{font-size:clamp(2rem, 9vw, 2.6rem);}
    .cta-row .btn{width:100%; justify-content:center;}
    .plate{grid-template-columns:1fr; text-align:left;}
    .avatar-frame{max-width:170px;}
    .flow-item{grid-template-columns:3.4rem 1fr;}
    .shot-grid{grid-template-columns:1fr;}
    section{padding:3.2rem 0;}

    .nav-toggle{display:inline-flex;}
    .navlinks{
      display:none;
      position:absolute;
      top:calc(100% + 1px);
      left:0;
      right:0;
      flex-direction:column;
      flex-wrap:nowrap;
      gap:0;
      padding:0.45rem 0 0.7rem;
      background:rgba(8,28,51,0.98);
      border:1px solid var(--line);
      border-top:none;
      box-shadow:0 18px 40px rgba(0,0,0,0.35);
    }
    body.nav-open .navlinks{display:flex;}
    .navlinks a{
      display:block;
      padding:0.95rem 1rem;
      border-bottom:1px solid var(--line-soft);
      font-size:0.95rem;
      color:var(--ink);
    }
    .navlinks a:last-child{border-bottom:none;}
    .navlinks a:hover,
    .navlinks a:active{color:var(--amber); background:rgba(232,171,62,0.08);}
  }

/* Clickable cards */
a.tile{ text-decoration:none; color:inherit; display:block; cursor:pointer; }
a.tile .more{
  display:inline-block; margin-top:0.85rem;
  font-family:"IBM Plex Mono", monospace; font-size:0.78rem;
  letter-spacing:0.04em; color:var(--amber);
}
a.tile:hover .more{ text-decoration:underline; }

/* Detail / study pages */
.page-hero{ padding:3.2rem 0 2.4rem; border-bottom:1px solid var(--line); }
.page-hero h1{
  font-family:"Space Grotesk", sans-serif; font-weight:700;
  font-size:clamp(1.9rem, 3.6vw, 2.7rem); letter-spacing:-0.02em;
  line-height:1.08; margin:0 0 0.85rem;
}
.page-hero .lead{ max-width:44rem; }
.crumb{
  display:flex; flex-wrap:wrap; gap:0.45rem; align-items:center;
  font-family:"IBM Plex Mono", monospace; font-size:0.78rem;
  color:var(--muted); margin-bottom:1.1rem;
}
.crumb a{ color:var(--muted); text-decoration:none; }
.crumb a:hover{ color:var(--amber); }
.crumb .sep{ opacity:0.5; }

.doc-body{ padding:3rem 0 4.5rem; }
.doc-body .prose{ max-width:820px; }
.doc-body h2{
  margin:2.6rem 0 0.75rem;
  font-size:clamp(1.25rem, 2.4vw, 1.55rem);
}
.doc-body h2:first-child{ margin-top:0; }
.doc-body h3{
  margin:1.4rem 0 0.5rem; font-size:1.05rem;
  font-family:"Space Grotesk", sans-serif;
}
.doc-body p{ color:var(--muted); margin:0 0 1rem; }
.doc-body ul, .doc-body ol{
  margin:0 0 1.2rem; padding-left:1.15rem; color:var(--muted);
  display:grid; gap:0.45rem;
}
.doc-body li code, .doc-body p code, .doc-body .callout code{
  color:var(--amber); font-family:"IBM Plex Mono", monospace; font-size:0.9em;
}
.doc-body strong{ color:var(--ink); }
.doc-body .callout{
  border:1px solid var(--line); border-left:2px solid var(--amber);
  background:rgba(9,28,50,0.55); padding:1rem 1.15rem;
  margin:1.2rem 0 1.5rem; color:var(--muted);
}
.doc-body .callout ul{ margin:0.55rem 0 0; }
.doc-table{
  width:100%; border-collapse:collapse; margin:0 0 1.4rem; font-size:0.92rem;
}
.doc-table th, .doc-table td{
  border:1px solid var(--line); padding:0.65rem 0.8rem;
  text-align:left; vertical-align:top;
}
.doc-table th{
  font-family:"IBM Plex Mono", monospace; font-size:0.75rem;
  letter-spacing:0.06em; text-transform:uppercase; color:var(--amber);
  background:rgba(9,28,50,0.55);
}
.doc-table td{ color:var(--muted); }
.doc-table code{
  color:var(--amber); font-family:"IBM Plex Mono", monospace; font-size:0.88em;
}

.pager{
  display:flex; flex-wrap:wrap; justify-content:space-between; gap:1rem;
  margin-top:2.8rem; padding-top:1.4rem; border-top:1px solid var(--line);
}
.pager a{
  text-decoration:none; font-family:"IBM Plex Mono", monospace; font-size:0.84rem;
  color:var(--ink); border:1px solid var(--line); padding:0.7rem 1rem;
  transition:border-color .18s ease, transform .18s ease;
}
.pager a:hover{ border-color:var(--amber); transform:translateY(-2px); }
.pager .label{
  display:block; color:var(--muted); font-size:0.72rem;
  margin-bottom:0.25rem; letter-spacing:0.06em; text-transform:uppercase;
}

footer.site-footer{
  padding:2.2rem 0 2.8rem; border-top:1px solid var(--line);
  color:var(--muted); font-family:"IBM Plex Mono", monospace; font-size:0.84rem;
}
footer.site-footer .wrap{
  display:grid; gap:1.4rem;
  grid-template-columns: 1.3fr 1fr auto;
  align-items:start;
}
footer.site-footer .brand{
  color:var(--ink); margin:0 0 0.4rem;
  font-family:"Space Grotesk", sans-serif; font-weight:700; font-size:1rem;
}
footer.site-footer .blurb{ margin:0; max-width:28rem; line-height:1.55; }
footer.site-footer .links{
  display:grid;
  grid-template-columns:repeat(2, minmax(0, 1fr));
  gap:0.55rem;
}
footer.site-footer .links a{
  color:var(--ink);
  text-decoration:none;
  border:1px solid var(--line);
  background:rgba(9,28,50,0.45);
  padding:0.75rem 0.85rem;
  min-height:2.75rem;
  display:flex;
  align-items:center;
}
footer.site-footer .links a:hover{
  color:var(--amber);
  border-color:var(--amber);
}
footer.site-footer .copy{ text-align:right; margin:0; }
footer.site-footer .copy p{ margin:0; }
@media (max-width: 860px){
  footer.site-footer{ padding:1.8rem 0 2.4rem; font-size:0.9rem; }
  footer.site-footer .wrap{ grid-template-columns:1fr; gap:1.2rem; }
  footer.site-footer .links{ grid-template-columns:1fr 1fr; gap:0.65rem; }
  footer.site-footer .links a{
    justify-content:center;
    text-align:center;
    padding:0.95rem 0.7rem;
    min-height:3rem;
  }
  footer.site-footer .copy{ text-align:left; padding-top:0.2rem; }
  .page-hero{ padding:2.4rem 0 1.8rem; }
  .doc-body{ padding:2.2rem 0 3.2rem; }
  .pager{ flex-direction:column; }
  .pager a{ width:100%; }
  .doc-table{ display:block; overflow-x:auto; -webkit-overflow-scrolling:touch; }
  .cta-row .btn{ width:100%; justify-content:center; }
}
@media (max-width: 420px){
  footer.site-footer .links{ grid-template-columns:1fr; }
}