/* ============================================================
   TOKENS
   ============================================================ */
:root{
  --blueprint:      #1B2A38;
  --blueprint-line: #3E5C70;
  --blueprint-ink:  #C7D6DF;

  --aluminum:       #C7CBCE;
  --aluminum-dark:  #8A9095;
  --aluminum-ink:   #1E2124;

  --paper:          #E8E2D3;
  --paper-2:        #DED6C2;
  --ink:            #23211B;
  --ink-dim:        #5B5748;

  --terminal-bg:    #10130F;
  --terminal-fg:    #C9D8C9;

  --copper:         #B5651D;
  --pcb-green:      #3E8562;
  --amber:          #C98A2B;

  --accent: var(--copper);
}

body.theme-vivado{ --accent: var(--amber); }

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  background: var(--paper);
  color: var(--ink);
  overflow-x: hidden;
}
a{ color: inherit; }
img,svg{ max-width:100%; display:block; }
button{
  background:none; border:none; color:inherit; cursor:pointer;
}
button:focus-visible, a:focus-visible, input:focus-visible{
  outline: 2px solid var(--accent); outline-offset: 3px;
}
.wrap{ max-width: 980px; margin: 0 auto; padding: 0 28px; }

/* ============================================================
   BOOT OVERLAY
   ============================================================ */
#boot-overlay{
  position: fixed; inset: 0; z-index: 999;
  background: var(--terminal-bg);
  color: var(--terminal-fg);
  display:flex; align-items:center; justify-content:center;
  padding: 24px;
}
#boot-overlay.boot-hide{
  animation: bootLiftAway .7s cubic-bezier(.6,0,.2,1) forwards;
}
.boot-lines{
  font-family: var(--f-mono);
  font-size: 14px;
  line-height: 1.9;
  white-space: pre-wrap;
  width: min(560px, 90vw);
}
.boot-cursor{ display:inline-block; width:8px; background:var(--terminal-fg); animation: blink 1s step-end infinite; }

/* ============================================================
   NAV RAIL
   ============================================================ */
#nav-rail{
  position: fixed; top: 0; right: 0; z-index: 60;
  display:flex; flex-direction:column;
  border-left: 1px solid var(--blueprint-line);
  background: var(--blueprint);
}
#nav-rail a{
  writing-mode: vertical-rl;
  text-orientation: mixed;
  padding: 18px 10px;
  font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--blueprint-ink); text-decoration:none;
  border-bottom: 1px solid var(--blueprint-line);
  opacity: .65;
  transition: opacity .15s, background .15s;
}
#nav-rail a:hover, #nav-rail a.active{
  opacity: 1; background: rgba(181,101,29,0.18); color: var(--accent);
}

/* ============================================================
   WORKSPACE — shared shell
   ============================================================ */
.workspace{
  position: relative;
  padding: 90px 28px 100px;
  padding-right: 60px; /* clears the nav rail */
}
.workspace-inner{ max-width: 980px; margin: 0 auto; }
.workspace-title{ margin: 0 0 4px 0; }
.workspace-sub{ margin: 0 0 44px 0; display:block; }

/* material themes per workspace */
.workspace--blueprint{
  background-color: var(--blueprint);
  color: var(--blueprint-ink);
  background-image:
    linear-gradient(var(--blueprint-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--blueprint-line) 1px, transparent 1px);
  background-size: 34px 34px;
  background-position: -1px -1px;
}
.workspace--pcb{
  background: #14201C;
  color: #CFE3D6;
}
.workspace--metal{
  background: repeating-linear-gradient(180deg, var(--aluminum) 0 3px, #BEC3C6 3px 4px);
  color: var(--aluminum-ink);
}
.workspace--paper{ background: var(--paper); color: var(--ink); }
.workspace--paper2{ background: var(--paper-2); color: var(--ink); }
.workspace--terminal{ background: var(--terminal-bg); color: var(--terminal-fg); }

/* ============================================================
   LAB (hero)
   ============================================================ */
#lab{ min-height: 100vh; display:flex; align-items:center; }
.lab-eyebrow, .role-line, .lab-desc, .lab-meta, .scroll-cue {
  position: relative;
  left: 0.2cm;
}
.lab-eyebrow{ color: var(--copper); margin-bottom: 18px; }
.engrave-name h1{
  text-transform: uppercase;
  color: var(--blueprint-ink);
  text-shadow: 0 1px 0 rgba(0,0,0,.4), 0 0 18px rgba(199,214,223,0);
}
.engrave-name.engraved h1{
  animation: engrave 1.4s ease-out both;
}
.role-line{
  font-family: var(--f-mono); color: var(--copper);
  font-size: 15px; letter-spacing: .04em; margin-top: 14px;
}
.lab-desc{ max-width: 56ch; margin-top: 18px; font-size: 17px; line-height: 1.7; }
.lab-meta{
  margin-top: 34px; display:flex; gap: 22px; flex-wrap:wrap;
  font-family: var(--f-mono); font-size: 12.5px;
}
.lab-meta a{ text-decoration:none; border-bottom:1px solid var(--blueprint-line); padding-bottom:2px; }
.lab-meta a:hover{ border-color: var(--copper); color: var(--copper); }
.scroll-cue{
  margin-top: 60px; font-family: var(--f-mono); font-size: 11px; letter-spacing: .1em;
  color: var(--copper); opacity:.85;
}

/* ============================================================
   DESIGN TABLE (PCB)
   ============================================================ */
.pcb-stage{ display:grid; grid-template-columns: 1.4fr 1fr; gap: 30px; align-items:start; }
.pcb-board{ width:100%; }
.trace{ fill:none; stroke:#3A5449; stroke-width:2; transition: stroke .25s, filter .25s; }
.trace-power{ stroke-width:3; }
.trace-thin{ stroke-width:1; }
.pad{ fill:#3A5449; transition: fill .25s; }
.fpga-body{ fill:#324D40; stroke:#4A6E5C; stroke-width:1; }
.fpga-die{ fill:#233A30; stroke:#4A6E5C; stroke-width:1; }
.fpga-label{ fill:#8FBBA5; font-size:11px; letter-spacing:.05em; }
.zone-label{ font-family: var(--f-mono); font-size: 10px; fill:#6F8B7C; letter-spacing:.06em; transition: fill .25s; }
.refdes{ font-family: var(--f-mono); font-size: 8px; fill:#4F6E5E; letter-spacing:.04em; }
.pinlabel{ font-family: var(--f-mono); font-size: 6.5px; fill:#4F6E5E; letter-spacing:.03em; }
.mfg-text{ font-family: var(--f-mono); font-size: 6.5px; fill:#33473C; letter-spacing:.06em; }
.passive{ fill:#2B4137; stroke:#3A5449; stroke-width:1; }
.via-outer{ fill:#24382E; stroke:#3A5449; stroke-width:1; }
.via-inner{ fill:#0F1712; }
.via-inner-line{ stroke:#3A5449; stroke-width:.8; }
.thermal{ fill:none; stroke:#2C4438; stroke-width:1; stroke-dasharray:2 3; }
.fiducial circle{ fill:none; stroke:#3A5449; stroke-width:1; }
.fiducial line{ stroke:#3A5449; stroke-width:.6; }
.header .pad{ fill:#2B4137; }
.testpoint-ring{ fill:none; stroke:#3A5449; stroke-width:1.4; }
.testpoint-label{ font-family: var(--f-mono); font-size: 8px; fill:#4F6E5E; }
.silkscreen{ font-family: var(--f-mono); font-size: 9px; fill:#39503F; letter-spacing:.12em; }
.pcb-group.active .trace{ stroke: var(--pcb-green); filter: drop-shadow(0 0 4px rgba(62,133,98,.9)); }
.pcb-group.active .pad{ fill: var(--pcb-green); }
.pcb-group.active .zone-label{ fill: #A9F2C6; }

/* status LEDs — slow, low-amplitude pulse; powered, not neon */
.led{ fill: var(--pcb-green); opacity:.35; animation: ledPulse 3.4s ease-in-out infinite; }
.led--stat{ animation-delay: 1.3s; }
.clk-dot{ fill: var(--pcb-green); opacity:.4; animation: ledPulse 2.1s ease-in-out infinite; }

/* one-shot pulse fired along a project's trace when it's previewed/selected */
.signal-pulse{ opacity:0; fill: var(--pcb-green); filter: drop-shadow(0 0 5px rgba(62,133,98,.9)); }
.signal-pulse.fire{ animation: runPulse 1.5s ease-out; }

/* traces "route themselves" in when the design table scrolls into view */
.pcb-stage .trace:not(.pin-stub){
  stroke-dasharray: 320; stroke-dashoffset: 320;
  transition: stroke-dashoffset 1s cubic-bezier(.3,.7,.2,1), stroke .25s, filter .25s;
}
.pcb-stage.in .trace:not(.pin-stub){ stroke-dashoffset: 0; }

.project-tabs{ display:flex; flex-direction:column; gap: 10px; }
.project-tabs button{
  width:100%; display:flex; justify-content:space-between; align-items:center; gap:10px;
  text-align:left; padding: 14px 16px; border:1px solid #2F4A3E;
  font-size: 12.5px; letter-spacing:.05em; color:#CFE3D6;
}
.project-tabs button .ext{ opacity:.5; font-size:11px; }
.project-tabs button:hover, .project-tabs button.active{
  border-color: var(--pcb-green); background: rgba(62,133,98,.12); color:#fff;
}
.project-tabs button:hover .ext, .project-tabs button.active .ext{ opacity:1; color: var(--pcb-green); }

.repo-link{
  display:inline-block; margin-top:18px;
  font-family: var(--f-mono); font-size:12.5px;
  text-decoration:none; color: var(--pcb-green); border-bottom:1px solid rgba(62,133,98,.4);
}
.repo-link:hover{ border-color: var(--pcb-green); }

.utility-modules{ margin-top:56px; border-top:1px dashed #2F4A3E; padding-top:30px; }
.util-grid{ display:grid; grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); gap:14px; }
.util-chip{
  display:block; text-decoration:none; color:#CFE3D6;
  border:1px solid #2F4A3E; padding:16px; transition: border-color .2s, background .2s;
}
.util-chip:hover{ border-color: var(--pcb-green); background: rgba(62,133,98,.08); }
.util-name{ display:block; font-family: var(--f-mono); font-size:12px; color: var(--pcb-green); margin-bottom:8px; }
.util-desc{ display:block; font-size:12.5px; line-height:1.6; color:#9FBBAA; }
.project-detail{
  margin-top: 40px; border-top: 1px dashed #2F4A3E; padding-top: 30px;
}
.stage-stepper{ display:flex; gap:8px; flex-wrap:wrap; font-family: var(--f-mono); font-size:11.5px; }
.stage-stepper span{ padding:6px 10px; border:1px solid #2F4A3E; opacity:.45; transition: opacity .3s, border-color .3s, color .3s; }
.stage-stepper span.on{ opacity:1; border-color: var(--pcb-green); color:#A9F2C6; }
.stage-stepper .arrow{ border:none; padding:6px 0; }
.spec-lines{ margin-top:20px; font-family: var(--f-mono); font-size:12.5px; line-height:2; color:#B9D4C4; }

.console-panel{
  border:1px solid #2F4A3E; padding:18px; position:relative;
}
.console-panel::before, .console-panel::after{
  content:''; position:absolute; width:14px; height:14px;
}
.console-panel::before{ top:-1px; left:-1px; border-top:2px solid var(--pcb-green); border-left:2px solid var(--pcb-green); }
.console-panel::after{ bottom:-1px; right:-1px; border-bottom:2px solid var(--pcb-green); border-right:2px solid var(--pcb-green); }
.console-row{ display:flex; justify-content:space-between; font-family:var(--f-mono); font-size:12.5px; padding:6px 0; border-bottom:1px dotted #2F4A3E; }
.meter{ height:6px; background:#243B31; margin-top:6px; }
.meter-fill{ height:100%; background: var(--pcb-green); width:0%; transition: width 1.1s ease; }

.datapath text{ font-family: var(--f-mono); font-size:10px; fill:#CFE3D6; }
.datapath rect{ fill:none; stroke:#3A5449; stroke-width:1.6; }
.datapath path.wire{ fill:none; stroke:#3A5449; stroke-width:1.6; }
.datapath circle.pulse{ fill: var(--pcb-green); filter: drop-shadow(0 0 5px rgba(62,133,98,1)); opacity:0; }
.datapath circle.pulse.run{ opacity:1; animation: runPulse 3.2s linear; }
.run-btn{ margin-top:16px; border:1px solid var(--pcb-green); color:#A9F2C6; padding:8px 16px; font-size:12px; letter-spacing:.08em; }
.run-btn:hover{ background: rgba(62,133,98,.15); }

/* ============================================================
   RESEARCH DESK (pegboard toolbox)
   ============================================================ */
.pegboard{
  display:grid; grid-template-columns: repeat(auto-fill, minmax(160px,1fr));
  gap: 14px;
}
.tool-label{
  border: 1px solid var(--aluminum-dark);
  background: linear-gradient(180deg,#D6DADC,#B7BCC0);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.6), inset 0 -2px 0 rgba(0,0,0,.12);
  padding: 16px 14px;
  font-size: 12.5px; letter-spacing:.04em; text-transform:uppercase; text-align:left;
  color: var(--aluminum-ink);
}
.tool-label:hover, .tool-label.active{ border-color: var(--copper); color: var(--copper); }
.tool-drawer{
  margin-top: 30px; border-top: 2px solid var(--aluminum-dark); padding-top: 24px;
  max-height: 0; overflow:hidden; transition: max-height .4s ease;
}
.tool-drawer.open{ max-height: 240px; }
.tool-drawer h3{ font-size:16px; margin-bottom:10px; text-transform:uppercase; }
.tool-drawer p{ font-family: var(--f-doc); font-size:14.5px; max-width:60ch; }

/* ============================================================
   NOTEBOOK (experience)
   ============================================================ */
.notebook-stack{ position:relative; min-height: 360px; }
.page{
  position:absolute; inset:0;
  background: #F3EEDF;
  border: 1px solid var(--paper-2);
  box-shadow: 2px 3px 0 rgba(0,0,0,.06);
  padding: 34px clamp(18px,4vw,44px);
  transform-origin: bottom left;
  transition: transform .5s cubic-bezier(.6,0,.2,1), opacity .5s;
}
.page h3{ font-family:var(--f-mono); font-size:13px; letter-spacing:.1em; text-transform:uppercase; color:var(--copper); margin-bottom:6px; }
.page .p-role{ font-family: var(--f-mono); font-size:13px; color:var(--ink-dim); margin-bottom:14px;}
.page p.body-text{ font-size:16px; line-height:1.75; max-width:62ch; }
.page:not(.active){ transform: rotate(-2deg) translate(10px,10px) scale(.98); opacity:.55; pointer-events:none; z-index:1;}
.page:nth-of-type(3):not(.active){ transform: rotate(2deg) translate(16px,16px) scale(.96); }
.page.active{ transform:none; opacity:1; z-index:5; }
.page-controls{ margin-top: 28px; display:flex; align-items:center; gap:18px; font-family:var(--f-mono); font-size:12px; }
.page-controls button{ border:1px solid var(--ink-dim); padding:8px 14px; letter-spacing:.06em; }
.page-controls button:hover{ border-color: var(--copper); color: var(--copper); }

/* ============================================================
   PUBLICATIONS (paper shelf)
   ============================================================ */
.paper-shelf{ display:flex; flex-direction:column; gap:0; border-top:1px solid var(--ink-dim); }
.paper{ border-bottom:1px solid var(--ink-dim); }
.paper-face{
  width:100%; text-align:left; padding: 22px 4px; display:flex; flex-wrap:wrap; justify-content:space-between; gap:8px 16px; align-items:baseline;
}
.paper-face .p-title{ font-size:16px; font-weight:600; flex:1 1 60%; }
.paper-face .p-venue{ font-family:var(--f-mono); font-size:11.5px; color:var(--ink-dim); text-align:right; flex-shrink:0; line-height:1.4; }
.paper-face .p-authors{ display:block; width:100%; font-family:var(--f-mono); font-size:11.5px; color:var(--ink-dim); opacity:0.85; margin-top:4px; }
.paper-fold{ max-height:0; overflow:hidden; transition: max-height .5s cubic-bezier(.6,0,.2,1); }
.paper.open .paper-fold{ max-height: 800px; }
.paper-fold-inner{ padding: 12px 4px 26px 4px; font-size:14px; line-height:1.7; max-width:74ch; color: var(--ink-dim); }
.paper-fold-inner .abstract-tag{
  display:block; font-family: var(--f-mono); font-size:10px; letter-spacing:.14em;
  color: var(--copper); margin-bottom:10px; text-transform: uppercase;
}
.paper-fold-inner .abstract-text{ display:block; }
@media (min-width: 640px){
  .paper-fold-inner .abstract-text{ column-count:2; column-gap: 28px; }
}

.paper-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 16px;
  margin: 20px 0 16px;
  padding-top: 16px;
  border-top: 1px dashed var(--ink-dim);
  font-family: var(--f-mono);
  font-size: 11.5px;
}
.paper-meta dt {
  font-weight: 700;
  color: var(--copper);
  text-transform: uppercase;
  letter-spacing: .08em;
  font-size: 10px;
  margin-bottom: 4px;
}
.paper-meta dd {
  margin: 0;
  color: var(--ink-dim);
  line-height: 1.4;
}

.paper-links {
  margin-top: 16px;
  font-family: var(--f-mono);
  font-size: 12px;
}
.paper-links a {
  color: var(--copper);
  text-decoration: underline;
  text-decoration-color: rgba(181,101,29,.4);
}
.paper-links a:hover {
  text-decoration-color: var(--copper);
}
.paper-links .pl-sep {
  margin: 0 8px;
  color: var(--ink-dim);
}

/* ============================================================
   TERMINAL (contact)
   ============================================================ */
.term-window{
  border:1px solid #2C332C; max-width: 720px; margin: 0 auto;
  box-shadow: 0 0 0 1px rgba(201,216,201,.05);
}
.term-bar{
  display:flex; align-items:center; gap:8px; padding:10px 14px; background:#181C15; border-bottom:1px solid #2C332C;
  overflow:hidden;
}
.term-bar span:not(.term-title){ width:9px;height:9px;border-radius:50%; background:#3A423A; display:inline-block; flex-shrink:0; }
.term-title{
  margin-left:auto; font-size:11px; opacity:.6;
  white-space:nowrap; overflow:hidden; text-overflow:ellipsis; max-width:40%;
}
.term-body{ padding: 16px; min-height: 140px; font-size:13.5px; line-height:1.9; }
.term-body .ok{ color: var(--pcb-green); }
.term-body a{ color: var(--copper); text-decoration: underline; text-decoration-color: rgba(181,101,29,.4); }
.term-body a:hover{ text-decoration-color: var(--copper); }
.term-body code{ color: var(--copper); }
.term-input-row{ display:flex; align-items:center; gap:8px; padding: 0 16px 16px; }
.term-prompt{ color: var(--pcb-green); font-size:13.5px; }
#term-input{
  flex:1; background:transparent; border:none; color: var(--terminal-fg);
  font-family: var(--f-mono); font-size:13.5px; caret-color: var(--pcb-green);
}
.term-hint{ text-align:center; margin-top:16px; font-family:var(--f-mono); font-size:11.5px; opacity:.6; }
.term-hint code{ color: var(--copper); }

/* ============================================================
   FOOTER
   ============================================================ */
footer.site-foot{
  background: var(--terminal-bg); color: var(--terminal-fg);
  text-align:center; padding: 30px 20px; font-family: var(--f-mono); font-size:11px;
  letter-spacing:.08em; opacity:.6;
}

/* konami banner */
#konami-banner{
  position: fixed; bottom: 20px; left: 50%; transform: translate(-50%, 20px);
  background: var(--terminal-bg); color: var(--pcb-green); border:1px solid var(--pcb-green);
  font-family: var(--f-mono); font-size:12px; padding:12px 20px; letter-spacing:.06em;
  opacity:0; pointer-events:none; transition: opacity .3s, transform .3s; z-index: 200;
}
#konami-banner.show{ opacity:1; transform: translate(-50%,0); }