@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600;700&family=IBM+Plex+Sans:wght@400;500;600&display=swap');

:root{
  --bg: #121b24;
  --bg-alt: #17222c;
  --paper: #ece8dd;
  --paper-dim: #b9c1c6;
  --copper: #c97c3d;
  --copper-bright: #e8a548;
  --muted: #7c8a99;
  --line: #2e3f4e;
  --font-display: 'IBM Plex Mono', monospace;
  --font-body: 'IBM Plex Sans', sans-serif;
  --frame-inset: 14px;
}

*{ box-sizing:border-box; margin:0; padding:0; }

html{ scroll-behavior:smooth; }

body{
  background:var(--bg);
  color:var(--paper);
  font-family:var(--font-body);
  line-height:1.6;
  overflow-x:hidden;
  padding:0 var(--frame-inset) var(--frame-inset);
}

.grid-bg{
  position:fixed; inset:0; z-index:0; pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size:40px 40px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 40%, transparent 90%);
}

/* SHEET FRAME — fixed schematic border; content scrolls inside it. No top edge: the nav bar IS the top edge. */
.sheet-margin{
  position:fixed; inset:0; z-index:20; pointer-events:none;
  border-style:solid; border-color:var(--bg-alt);
  border-width:0 var(--frame-inset) var(--frame-inset) var(--frame-inset);
}
.sheet-frame{
  position:fixed; top:0; right:var(--frame-inset); bottom:var(--frame-inset); left:var(--frame-inset);
  z-index:22; pointer-events:none;
  border-style:solid; border-color:var(--line);
  border-width:0 1px 1px 1px;
}

/* ZONE GRID — schematic-style tick marks + reference letters/numbers along the margin */
.zone-row{
  position:fixed; left:var(--frame-inset); right:var(--frame-inset); bottom:0; height:var(--frame-inset);
  z-index:23; pointer-events:none; display:flex;
  font-family:var(--font-display); font-size:8px; color:var(--muted);
}
.zone-row span{
  flex:1; display:flex; align-items:center; justify-content:center;
  border-left:1px solid var(--line);
}
.zone-row span:first-child{ border-left:none; }

.zone-col{
  position:fixed; top:0; bottom:var(--frame-inset); width:var(--frame-inset);
  z-index:23; pointer-events:none; display:flex; flex-direction:column;
  font-family:var(--font-display); font-size:8px; color:var(--muted);
}
.zone-col span{
  flex:1; display:flex; align-items:center; justify-content:center;
  border-top:1px solid var(--line);
}
.zone-col span:first-child{ border-top:none; }
.zone-left{ left:0; }
.zone-right{ right:0; }

a{ color:inherit; }

.wrap{ max-width:1100px; margin:0 auto; padding:0 32px; position:relative; z-index:1; }

/* NAV — sits flush at the true top of the viewport; its own bottom border is the frame's top edge */
.nav{
  position:sticky; top:0; z-index:10;
  background:var(--bg-alt);
  border-bottom:1px solid var(--line);
}
.nav .wrap{
  display:flex; align-items:center; justify-content:space-between;
  height:68px;
}
.brand{
  font-family:var(--font-display); font-weight:600; letter-spacing:0.04em;
  font-size:15px; text-transform:uppercase; display:flex; align-items:center; gap:10px;
}
.brand-mark{
  width:18px; height:18px; border:2px solid var(--copper); border-radius:50%;
  position:relative; flex-shrink:0;
}
.brand-mark::before{
  content:''; position:absolute; top:50%; left:50%;
  width:6px; height:6px; background:var(--copper-bright);
  border-radius:50%; transform:translate(-50%,-50%);
}
.nav-links{ display:flex; gap:32px; font-family:var(--font-display); font-size:13px; letter-spacing:0.03em; }
.nav-links a{ text-decoration:none; color:var(--paper-dim); transition:color .2s; }
.nav-links a:hover{ color:var(--copper-bright); }

/* HAMBURGER */
.hamburger{
  display:none; flex-direction:column; justify-content:center; align-items:center;
  gap:5px; width:36px; height:36px; background:transparent; border:1px solid var(--line);
  border-radius:2px; cursor:pointer; padding:0;
}
.hamburger span{
  display:block; width:18px; height:2px; background:var(--paper-dim);
  transition: transform .2s, opacity .2s, background .2s;
}
.hamburger:hover span{ background:var(--copper-bright); }
.hamburger.open span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2){ opacity:0; }
.hamburger.open span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

/* HERO */
.hero{
  padding:10px 0 90px;
  position:relative; z-index:1;
}

/* TITLE BLOCK — traditional drawing title block, flush in the frame's corner */
.title-block{
  position:fixed; right:var(--frame-inset); bottom:var(--frame-inset); z-index:24; width:280px;
  font-family:var(--font-display); color:var(--paper-dim);
  background:var(--bg-alt);
  border:1px solid var(--line);
  transition: opacity .25s ease, transform .25s ease;
}
.title-block.is-hidden{ opacity:0; transform:translateY(8px); pointer-events:none; }

.tb-row{ display:flex; border-top:1px solid var(--line); }
.tb-row:first-child{ border-top:none; }

.tb-company{
  padding:8px 10px; font-size:10px; font-weight:600; letter-spacing:0.04em;
  text-transform:uppercase; color:var(--paper);
}

.tb-cell{ flex:1; padding:6px 10px; border-left:1px solid var(--line); min-width:0; }
.tb-cell:first-child{ border-left:none; }
.tb-cell label{ display:block; font-size:7.5px; color:var(--muted); letter-spacing:0.05em; text-transform:uppercase; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.tb-cell span{ display:block; font-size:10px; color:var(--paper-dim); white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }

.tb-title-cell{ flex:2.2; }
.tb-title-cell span{ font-size:13px; color:var(--copper-bright); font-weight:600; letter-spacing:0.02em; text-transform:uppercase; }
.tb-rev-cell{ flex:0 0 44px; padding-left:6px; padding-right:6px; }
.tb-sheet-cell{ flex:0 0 62px; padding-left:6px; padding-right:6px; }

.eyebrow{
  font-family:var(--font-display); font-size:12px; letter-spacing:0.12em;
  color:var(--copper); text-transform:uppercase; margin-bottom:16px; display:block;
}
.hero h1{
  font-family:var(--font-display); font-weight:700; font-size:clamp(30px,4.2vw,52px);
  line-height:1.15; letter-spacing:-0.01em; max-width:16ch; margin-bottom:22px;
}
.hero p{ color:var(--paper-dim); max-width:56ch; font-size:17px; margin-bottom:30px; }
.hero-ctas{ display:flex; gap:14px; flex-wrap:wrap; }

.btn{
  font-family:var(--font-display); font-size:13px; letter-spacing:0.03em;
  padding:13px 22px; border-radius:2px; text-decoration:none; cursor:pointer;
  border:1px solid var(--copper); transition: all .2s; display:inline-block;
}
.btn-primary{ background:var(--copper); color:var(--bg); font-weight:600; }
.btn-primary:hover{ background:var(--copper-bright); border-color:var(--copper-bright); }
.btn-ghost{ color:var(--paper); background:transparent; }
.btn-ghost:hover{ border-color:var(--copper-bright); color:var(--copper-bright); }

/* PAGE HEADER (non-home pages) */
.page-header{
  padding:90px 0 50px; position:relative; z-index:1;
}
.page-header h1{
  font-family:var(--font-display); font-weight:700; font-size:clamp(28px,3.6vw,42px);
  line-height:1.15; letter-spacing:-0.01em; margin-bottom:16px;
}
.page-header p{ color:var(--paper-dim); max-width:60ch; font-size:16px; }

/* SECTIONS with rail */
.section{
  display:grid; grid-template-columns: 60px 1fr; gap:24px;
  padding:70px 0; border-top:1px solid var(--line);
  position:relative; z-index:1;
}
.rail{ position:relative; }
.rail::before{
  content:''; position:absolute; top:0; bottom:0; left:50%;
  width:2px; transform:translateX(-50%);
  background:linear-gradient(to bottom, var(--line), var(--copper) 8%, var(--copper) 92%, var(--line));
}
.node{
  position:absolute; top:6px; left:50%; transform:translateX(-50%);
  width:11px; height:11px; border-radius:50%; background:var(--copper-bright);
  box-shadow:0 0 0 4px rgba(232,165,72,0.15), 0 0 14px rgba(232,165,72,0.5);
}
.net-label{
  position:absolute; top:26px; left:50%; transform:translateX(-50%) rotate(180deg);
  writing-mode:vertical-rl; font-family:var(--font-display); font-size:10px;
  letter-spacing:0.1em; color:var(--muted);
}
.section h2{
  font-family:var(--font-display); font-size:28px; font-weight:700; margin-bottom:10px;
}
.section-intro{ color:var(--paper-dim); max-width:60ch; margin-bottom:40px; font-size:15.5px; }

/* BLOCK REFDES / TITLE — sit just outside the block's top edge, like a schematic designator */
.tag-ref, .tag-title{
  position:absolute; top:-18px;
  font-family:var(--font-display); font-size:11px; color:var(--copper-bright);
  letter-spacing:0.06em; white-space:nowrap;
}
.tag-ref{ left:6px; }
.tag-title{ right:6px; }

/* EXPERIENCE */
.role{
  position:relative;
  display:grid; grid-template-columns: 130px 1fr; gap:24px;
  background:var(--bg-alt); border:1px solid var(--line); border-radius:3px;
  padding:22px; margin-bottom:24px; transition: border-color .2s, transform .2s;
}
.role:last-of-type{ margin-bottom:0; }
.role:hover{ border-color:var(--copper); transform:translateY(-2px); }
.role-date{ font-family:var(--font-display); font-size:13px; color:var(--copper); padding-top:2px; }
.role-title{ font-weight:600; font-size:17px; margin-bottom:4px; }
.role-org{ font-family:var(--font-display); font-size:13px; color:var(--muted); margin-bottom:10px; }
.role-desc{ color:var(--paper-dim); font-size:15px; max-width:62ch; }

/* SKILLS */
.skills-grid{ display:grid; grid-template-columns:repeat(2,1fr); gap:24px 16px; }
.skill-card{
  position:relative;
  background:var(--bg-alt); border:1px solid var(--line); border-radius:3px;
  padding:22px; transition: border-color .2s, transform .2s;
}
.skill-card:hover{ border-color:var(--copper); transform:translateY(-2px); }
.skill-card h3{ font-size:16px; font-weight:600; margin-bottom:8px; }
.skill-card p{ color:var(--paper-dim); font-size:14px; }

/* PROJECTS */
.project-photo{
  aspect-ratio:16/10; border:1px dashed var(--line); border-radius:2px;
  background:
    repeating-linear-gradient(45deg, rgba(255,255,255,0.03) 0 10px, transparent 10px 20px),
    var(--bg);
  display:flex; align-items:center; justify-content:center;
  overflow:hidden;
}
.project-photo span{
  font-family:var(--font-display); font-size:11px; letter-spacing:0.08em;
  color:var(--muted); text-transform:uppercase;
}
.project-photo:has(img){ border-style:solid; background:none; }
.project-photo img{ width:100%; height:100%; object-fit:cover; display:block; }

.projects-grid{ display:grid; grid-template-columns:repeat(2,1fr); gap:24px 16px; }
.project-card{
  position:relative;
  background:var(--bg-alt); border:1px solid var(--line); border-radius:3px;
  transition: border-color .2s, transform .2s;
}
.project-card:hover{ border-color:var(--copper); transform:translateY(-2px); }
.project-card .project-photo{ border:none; border-bottom:1px solid var(--line); border-radius:0; border-top-left-radius:3px; border-top-right-radius:3px; }
.project-card-body{ padding:20px; }
.project-card-body h3{ font-size:16px; font-weight:600; margin:6px 0 8px; }
.project-card-body p{ color:var(--paper-dim); font-size:14px; }

.project-preview{
  position:relative;
  display:grid; grid-template-columns:280px 1fr; gap:24px; align-items:center;
  background:var(--bg-alt); border:1px solid var(--line); border-radius:3px; padding:20px;
}
.project-preview .project-photo{ margin:0; }
.project-preview-body h3{ font-size:18px; font-weight:600; margin:6px 0 8px; }
.project-preview-body p{ color:var(--paper-dim); font-size:15px; margin-bottom:16px; max-width:50ch; }

/* CONTACT */
.contact-layout{ display:grid; grid-template-columns:1fr 1fr; gap:24px; align-items:start; }
.contact-info, #contact-form{
  position:relative;
  background:var(--bg-alt); border:1px solid var(--line); border-radius:3px; padding:24px;
  height:100%;
}
.contact-info p{ color:var(--paper-dim); font-size:15px; margin-bottom:18px; max-width:40ch; }
.contact-email{
  font-family:var(--font-display); color:var(--copper-bright); text-decoration:none; font-size:15px;
  border-bottom:1px solid var(--copper); padding-bottom:2px;
}
.field{ margin-bottom:16px; }
.field label{
  display:block; font-family:var(--font-display); font-size:12px; color:var(--muted);
  margin-bottom:6px; letter-spacing:0.03em;
}
.field input, .field textarea{
  width:100%; background:var(--bg); border:1px solid var(--line); color:var(--paper);
  padding:11px 12px; font-family:var(--font-body); font-size:14.5px; border-radius:2px;
  resize:vertical;
}
.field input:focus, .field textarea:focus{
  outline:none; border-color:var(--copper);
}
.field textarea{ min-height:110px; }
.form-note{ font-size:12.5px; color:var(--muted); margin-top:10px; }
.form-status{ font-size:13px; color:var(--copper-bright); margin-top:10px; min-height:16px; }

/* LIGHTBOX */
.lightbox{
  position:fixed; inset:0; z-index:100; display:none;
  align-items:center; justify-content:center;
  background:rgba(10,14,18,0.92);
  padding:40px; overflow:auto;
}
.lightbox.open{ display:flex; }
.lightbox-img{
  max-width:92vw; max-height:92vh; object-fit:contain;
  cursor:zoom-in; border:1px solid var(--line);
}
.lightbox-img.zoomed{
  cursor:zoom-out; max-width:none; max-height:none; transform:scale(1.6);
}
.lightbox-close{
  position:fixed; top:20px; right:24px; z-index:101;
  width:40px; height:40px; border-radius:50%;
  background:var(--bg-alt); border:1px solid var(--line); color:var(--paper);
  font-size:22px; line-height:1; cursor:pointer;
}
.lightbox-close:hover{ border-color:var(--copper); color:var(--copper-bright); }

footer{
  border-top:1px solid var(--line); padding:28px 0; text-align:center;
  font-family:var(--font-display); font-size:12px; color:var(--muted); position:relative; z-index:1;
}

@media (max-width: 760px){
  :root{ --frame-inset: 0px; }
  .sheet-margin, .sheet-frame, .zone-row, .zone-col, .title-block{ display:none; }
  .hero{ padding-top:10px; }
  .section{ grid-template-columns:30px 1fr; gap:14px; padding:50px 0; }
  .net-label{ display:none; }
  .role{ grid-template-columns:1fr; gap:4px; }
  .skills-grid{ grid-template-columns:1fr; }
  .projects-grid{ grid-template-columns:1fr; }
  .project-preview{ grid-template-columns:1fr; }
  .contact-layout{ grid-template-columns:1fr; }

  .hamburger{ display:flex; }
  .nav-links{
    position:absolute; top:100%; left:0; right:0;
    flex-direction:column; gap:0;
    background:var(--bg-alt); border-bottom:1px solid var(--line);
    max-height:0; overflow:hidden; transition:max-height .25s ease;
  }
  .nav-links.open{ max-height:300px; }
  .nav-links a{ padding:16px 32px; border-top:1px solid var(--line); }
  .nav-links a:first-child{ border-top:none; }
}