/* ============================================================
   Aljundi Lab — Circuit Board / PCB Trace
   Electronics lab aesthetic with copper traces and solder pads
   ============================================================ */

:root {
  --pcb: #1B5E20;
  --pcb-dark: #0D3B10;
  --pcb-light: #237A28;
  --copper: #C8945A;
  --copper-bright: #D4A868;
  --copper-pale: #E0C8A0;
  --solder: #D4B896;
  --silkscreen: #F0F0E8;
  --silkscreen-dim: #C0BEB0;
  --component: #1A1A1A;
  --led-red: #E83020;
  --led-red-glow: #FF5040;
  --led-blue: #3080D0;
  --led-blue-glow: #50A0F0;
  --led-green: #30B830;
  --via: #C8945A;
  --font-body: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'Consolas', 'Courier New', monospace;
  --max-w: 1040px;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{
  font-family:var(--font-body);font-size:0.93rem;line-height:1.6;
  color:var(--silkscreen);background:var(--pcb-dark);
  background-image:radial-gradient(circle,var(--pcb) 1px,transparent 1px);
  background-size:30px 30px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto}
a{color:var(--copper-bright);text-decoration:none;transition:color 0.15s}
a:hover{color:var(--copper-pale)}

h1,h2,h3,h4{font-weight:800;color:var(--silkscreen);line-height:1.15;letter-spacing:0.01em}
h1{font-size:clamp(1.8rem,4vw,2.6rem);font-family:var(--font-mono)}
h2{font-size:clamp(1.3rem,2.5vw,1.7rem);font-family:var(--font-mono)}
h3{font-size:1.05rem}
h4{font-size:0.88rem}

/* --- Board Nav --- */
.board-nav{position:sticky;top:0;z-index:100;background:var(--component);border-bottom:3px solid var(--copper)}
.board-nav-inner{max-width:var(--max-w);margin:0 auto;padding:0 1.25rem;height:50px;display:flex;align-items:center;justify-content:space-between}
.board-logo{display:flex;align-items:center;gap:0.5rem;font-family:var(--font-mono);font-weight:800;font-size:0.9rem;color:var(--copper-bright)}
.board-logo-mark{width:24px;height:24px;background:var(--led-green);display:flex;align-items:center;justify-content:center;font-weight:900;font-size:0.6rem;color:var(--pcb-dark);box-shadow:0 0 8px rgba(48,184,48,0.5)}
.board-nav-links{display:flex;gap:0;list-style:none;padding:0}
.board-nav-links a{display:block;padding:0.25rem 0.75rem;font-size:0.8rem;font-weight:600;color:var(--silkscreen-dim);transition:all 0.15s;font-family:var(--font-mono);text-transform:uppercase;letter-spacing:0.04em}
.board-nav-links a:hover,.board-nav-links a.active{color:var(--copper-bright)}
.board-nav-cta a{background:var(--copper);color:var(--component)!important}
.board-nav-cta a:hover{background:var(--copper-bright);color:var(--component)!important}
.board-menu-btn{display:none;background:none;border:none;cursor:pointer;font-size:1.1rem;color:var(--silkscreen);padding:0.2rem}

/* --- Main --- */
.board-main{max-width:var(--max-w);margin:0 auto;padding:0 1.25rem}

/* --- Board Hero --- */
.board-hero{padding:4rem 0 3rem;display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:center}
.board-hero-tag{display:inline-block;font-family:var(--font-mono);font-size:0.65rem;font-weight:700;text-transform:uppercase;letter-spacing:0.1em;color:var(--led-green);margin-bottom:0.75rem;padding:0.2rem 0.5rem;border:1px solid var(--led-green)}
.board-hero-text h1{margin-bottom:0.75rem}
.board-hero-text .bh-desc{color:var(--silkscreen-dim);font-size:0.9rem;line-height:1.6;margin-bottom:1.5rem}
.board-component{background:var(--component);padding:2.5rem 2rem;text-align:center;border:2px solid var(--pcb-light);position:relative}
.board-component::before{content:'';position:absolute;top:-8px;left:50%;transform:translateX(-50%);width:16px;height:16px;background:var(--via);border-radius:50%}
.board-component .bc-data{font-family:var(--font-mono);font-size:0.8rem;line-height:1.8;color:var(--silkscreen-dim)}
.board-component .bc-data strong{color:var(--copper-bright)}

/* --- Via Holes --- */
.via-row{display:flex;justify-content:center;gap:2.5rem;margin:2rem 0;flex-wrap:wrap}
.via-stat{text-align:center}
.via-hole{width:50px;height:50px;border-radius:50%;border:3px solid var(--copper);margin:0 auto 0.4rem;display:flex;align-items:center;justify-content:center;background:var(--pcb-dark)}
.via-hole .vh-inner{width:20px;height:20px;border-radius:50%;background:var(--solder)}
.via-val{font-family:var(--font-mono);font-size:1.5rem;font-weight:800;color:var(--copper-bright);line-height:1}
.via-lbl{font-size:0.65rem;font-weight:600;text-transform:uppercase;letter-spacing:0.06em;color:var(--silkscreen-dim);margin-top:0.15rem}

/* --- Trace Section --- */
.trace-section{padding:3.5rem 0}
.trace-section+.trace-section{border-top:2px solid rgba(200,148,90,0.15)}
.trace-header{display:flex;align-items:center;gap:0.75rem;margin-bottom:2rem}
.trace-header .th-led{width:10px;height:10px;border-radius:50%;background:var(--led-green);box-shadow:0 0 8px rgba(48,184,48,0.6)}
.trace-header h2{margin-bottom:0}

/* --- Component Grid --- */
.comp-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.comp-chip{background:var(--component);border:1px solid var(--pcb-light);padding:1.5rem;position:relative;transition:all 0.2s}
.comp-chip:hover{border-color:var(--copper)}
.comp-chip::after{content:'';position:absolute;bottom:0.5rem;right:0.5rem;width:6px;height:6px;border-radius:50%;background:var(--led-green);box-shadow:0 0 4px rgba(48,184,48,0.4)}
.comp-chip .cc-pin{font-family:var(--font-mono);font-size:0.6rem;font-weight:700;color:var(--copper);margin-bottom:0.4rem;text-transform:uppercase;letter-spacing:0.06em}
.comp-chip h4{font-size:0.92rem;margin-bottom:0.25rem}
.comp-chip p{font-size:0.82rem;color:var(--silkscreen-dim);line-height:1.45}

/* --- Trace Route --- */
.trace-route{display:grid;grid-template-columns:1fr 1fr;gap:2.5rem;align-items:start;padding:2.5rem 0}
.trace-route+.trace-route{border-top:1px solid rgba(200,148,90,0.1)}
.trace-route.reverse{direction:rtl}
.trace-route.reverse .tr-text{direction:ltr}
.tr-text h3{color:var(--copper-bright);margin-bottom:0.5rem}
.tr-text p{color:var(--silkscreen-dim);line-height:1.65;margin-bottom:0.7rem;font-size:0.88rem}
.tr-list{list-style:none;padding:0}
.tr-list li{padding:0.25rem 0;padding-left:1rem;position:relative;color:var(--silkscreen-dim);font-size:0.82rem}
.tr-list li::before{content:'';position:absolute;left:0;top:0.5rem;width:4px;height:4px;border-radius:50%;background:var(--copper)}
.tr-chip{background:var(--component);border:1px solid var(--pcb-light);padding:2rem;text-align:center}
.tr-chip .tc-icon{font-size:2rem;margin-bottom:0.3rem}
.tr-chip h4{font-family:var(--font-mono);font-size:0.85rem;color:var(--copper-bright)}

/* --- Socket Row --- */
.socket-row{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}
.socket-slot{text-align:center;padding:1.5rem 1rem;background:var(--component);border:1px solid var(--pcb-light)}
.socket-slot .ss-num{font-family:var(--font-mono);font-size:1.8rem;font-weight:800;color:var(--copper);line-height:1;margin-bottom:0.3rem}
.socket-slot h4{font-size:0.82rem;margin-bottom:0.15rem}
.socket-slot p{font-size:0.75rem;color:var(--silkscreen-dim);line-height:1.35}

/* --- Test Point --- */
.test-point{background:var(--component);border-left:4px solid var(--copper);padding:2rem 2.5rem;margin:2rem 0}
.test-point blockquote{font-size:0.95rem;line-height:1.55;color:var(--silkscreen-dim);font-style:italic;max-width:580px}
.test-point .tp-src{display:block;margin-top:0.75rem;font-family:var(--font-mono);font-size:0.78rem;font-weight:700;font-style:normal;color:var(--copper-bright)}

/* --- Contact --- */
.contact-pcb{display:grid;grid-template-columns:1fr 1fr;gap:2.5rem}
.contact-pin{background:var(--component);border:1px solid var(--pcb-light);padding:1.25rem;margin-bottom:1rem;border-left:3px solid var(--copper)}
.contact-pin h4{font-family:var(--font-mono);font-size:0.65rem;text-transform:uppercase;letter-spacing:0.06em;color:var(--copper);margin-bottom:0.1rem}
.contact-pin .cp-val{font-weight:700;font-size:0.88rem}
.contact-pin .cp-note{font-size:0.75rem;color:var(--silkscreen-dim);margin-top:0.1rem}
.contact-board{background:var(--component);border:1px solid var(--pcb-light);padding:2rem}
.contact-board h3{font-family:var(--font-mono);color:var(--copper-bright);margin-bottom:1rem;text-transform:uppercase}
.form-f{margin-bottom:0.8rem}
.form-f label{display:block;font-family:var(--font-mono);font-weight:600;font-size:0.65rem;text-transform:uppercase;letter-spacing:0.05em;color:var(--copper);margin-bottom:0.1rem}
.form-f input,.form-f textarea,.form-f select{
  width:100%;padding:0.55rem 0.65rem;font-size:0.85rem;border:1px solid var(--pcb-light);
  font-family:var(--font-body);background:var(--pcb-dark);color:var(--silkscreen);transition:border-color 0.15s;
}
.form-f input:focus,.form-f textarea:focus,.form-f select:focus{outline:none;border-color:var(--copper)}
.form-f textarea{resize:vertical;min-height:90px}
.form-g2{display:grid;grid-template-columns:1fr 1fr;gap:0.8rem}

.btn{
  display:inline-flex;align-items:center;gap:0.3rem;padding:0.55rem 1.4rem;
  font-size:0.82rem;font-weight:800;cursor:pointer;font-family:var(--font-mono);
  border:2px solid var(--copper);transition:all 0.15s;text-transform:uppercase;letter-spacing:0.04em;
}
.btn-copper{background:var(--copper);color:var(--component)}
.btn-copper:hover{background:var(--copper-bright);color:var(--component)}
.btn-trace{background:transparent;color:var(--copper)}
.btn-trace:hover{background:var(--copper);color:var(--component)}

/* --- Page Open --- */
.page-open{padding:3rem 0 1.5rem}
.page-open .po-ref{font-family:var(--font-mono);font-size:0.65rem;font-weight:700;color:var(--led-green);text-transform:uppercase;letter-spacing:0.08em;margin-bottom:0.4rem}
.page-open h1{margin-bottom:0.3rem}
.page-open .po-desc{color:var(--silkscreen-dim);max-width:500px;font-size:0.9rem;line-height:1.55}

/* --- Principles --- */
.principles-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.principle-ic{background:var(--component);border:1px solid var(--pcb-light);padding:1.25rem;border-top:3px solid var(--led-blue)}
.principle-ic h4{font-family:var(--font-mono);font-size:0.78rem;color:var(--led-blue-glow);margin-bottom:0.25rem;text-transform:uppercase;letter-spacing:0.03em}
.principle-ic p{font-size:0.8rem;color:var(--silkscreen-dim);line-height:1.45}

/* --- Team --- */
.team-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}
.team-dip{text-align:center;padding:1.25rem 1rem;background:var(--component);border:1px solid var(--pcb-light)}
.team-dip .td-chip{width:40px;height:40px;margin:0 auto 0.5rem;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:0.7rem;color:var(--component);font-family:var(--font-mono)}
.td-chip.copper{background:var(--copper)}
.td-chip.blue{background:var(--led-blue)}
.td-chip.green{background:var(--led-green)}
.td-chip.red{background:var(--led-red)}
.team-dip h4{font-size:0.8rem;margin-bottom:0.05rem}
.team-dip .role{font-size:0.68rem;color:var(--silkscreen-dim)}

/* --- Legal --- */
.legal-prose{max-width:700px}
.legal-prose section{margin-bottom:2rem}
.legal-prose h2{font-family:var(--font-mono);font-size:1rem;margin-bottom:0.5rem;padding-bottom:0.2rem;border-bottom:1px solid var(--pcb-light);color:var(--copper-bright);text-transform:uppercase;letter-spacing:0.03em}
.legal-prose h3{font-size:0.85rem;margin:0.9rem 0 0.35rem;color:var(--led-blue-glow)}
.legal-prose p{line-height:1.7;color:var(--silkscreen-dim);margin-bottom:0.75rem;font-size:0.88rem}
.legal-prose ul,.legal-prose ol{margin-bottom:0.75rem;color:var(--silkscreen-dim);padding-left:1.5rem;font-size:0.88rem}
.legal-prose ul li,.legal-prose ol li{margin-bottom:0.25rem;line-height:1.5}
.legal-updated{padding:0.75rem 1rem;background:var(--component);border:1px solid var(--pcb-light);border-left:3px solid var(--copper);margin-bottom:1.5rem;font-family:var(--font-mono);font-size:0.78rem;color:var(--silkscreen-dim)}
.legal-toc{background:var(--component);border:1px solid var(--pcb-light);padding:1rem;margin-bottom:1.5rem}
.legal-toc h3{font-family:var(--font-mono);font-size:0.72rem;text-transform:uppercase;letter-spacing:0.05em;margin-top:0;margin-bottom:0.5rem;color:var(--copper)}
.legal-toc ol{padding-left:1.5rem;margin-bottom:0}
.legal-toc ol li{margin-bottom:0.2rem;font-size:0.82rem}

/* --- Footer --- */
.board-footer{background:var(--component);border-top:4px solid var(--copper);margin-top:4rem}
.board-footer-grid{max-width:var(--max-w);margin:0 auto;padding:2.5rem 1.25rem;display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:2.5rem}
.board-footer-brand h4{font-family:var(--font-mono);color:var(--copper-bright);font-size:0.85rem;text-transform:uppercase;letter-spacing:0.03em;margin-bottom:0.3rem}
.board-footer-brand p{color:var(--silkscreen-dim);font-size:0.78rem;line-height:1.5}
.board-footer-col h4{font-family:var(--font-mono);color:var(--copper);font-size:0.62rem;text-transform:uppercase;letter-spacing:0.1em;margin-bottom:0.5rem}
.board-footer-col ul{list-style:none;padding:0}
.board-footer-col ul li{margin-bottom:0.25rem}
.board-footer-col ul a{color:var(--silkscreen-dim);font-size:0.78rem;transition:color 0.15s}
.board-footer-col ul a:hover{color:var(--copper-bright)}
.board-footer-bar{max-width:var(--max-w);margin:0 auto;padding:0.7rem 1.25rem;border-top:1px solid var(--pcb-light);display:flex;justify-content:space-between;font-family:var(--font-mono);font-size:0.68rem;color:var(--silkscreen-dim)}
.board-footer-bar a{color:var(--silkscreen-dim)}
.board-footer-bar a:hover{color:var(--copper-bright)}

@media (max-width: 860px){
  .board-nav-links{display:none;position:absolute;top:50px;left:0;right:0;background:var(--component);flex-direction:column;padding:1rem;border-bottom:3px solid var(--copper)}
  .board-nav-links.open{display:flex}
  .board-menu-btn{display:block}
  .board-nav-inner{position:relative}
  .board-hero,.comp-grid,.trace-route,.contact-pcb,.principles-grid,.team-grid,.socket-row,.form-g2{grid-template-columns:1fr}
  .trace-route.reverse{direction:ltr}
  .board-footer-grid{grid-template-columns:1fr;gap:1.5rem}
  .via-row{gap:1.5rem}
}
@media (max-width: 500px){.team-grid{grid-template-columns:1fr 1fr}}