*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#FCFCFA;
  --ink:#111;
  --muted:#6b6b6b;
  --light:#888;
  --rule:#e0e0dd;
  --grid:#eeece8;
  --cobalt:#245BFF;
  --orange:#F97316;
  --cobalt-bg:rgba(36,91,255,0.06);
  --display:'Archivo Black',Impact,sans-serif;
  --body:'Inter',system-ui,sans-serif;
}
html{font-size:16px;scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:var(--body);font-weight:300;line-height:1.7;-webkit-font-smoothing:antialiased}

body::before{
  content:'';position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(var(--grid) 1px,transparent 1px),
    linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:40px 40px;
  opacity:0.6;
}

.content{position:relative;z-index:1}
.page{max-width:920px;margin:0 auto;padding:0 2rem}

/* --- HEADER --- */
header{padding:3rem 0 2.5rem;display:flex;justify-content:space-between;align-items:flex-start;flex-wrap:wrap;gap:1rem}
.nav-links a{font-size:0.9rem;font-weight:400;letter-spacing:0.08em;text-transform:uppercase;color:var(--muted);text-decoration:none;margin-left:1.5rem;transition:color 0.2s}
.nav-links a:hover{color:var(--cobalt)}

/* --- HERO --- */
.hero{padding:4rem 0 5rem;border-top:4px solid var(--ink);border-bottom:4px solid var(--ink)}
.hero h1{font-family:var(--display);font-size:clamp(2.6rem,7vw,4.8rem);line-height:1.05;letter-spacing:-0.02em;text-transform:uppercase;margin-bottom:1.5rem}
.hero h1 .co{color:var(--cobalt)}
.hero h1 .or{color:var(--orange)}
.hero-desc{font-size:1.1rem;color:var(--muted);max-width:560px;line-height:1.9;font-weight:300}

/* --- COLOR BAR --- */
.color-bar{height:4px;display:flex;margin:0}
.color-bar span{flex:1}
.color-bar .c1{background:var(--cobalt)}
.color-bar .c2{background:var(--orange)}
.color-bar .c3{background:var(--ink)}
.color-bar .c4{background:var(--muted)}

/* --- SECTION --- */
.section{padding:4rem 0}
.section+.section{border-top:1px solid var(--rule)}
.section-label{font-family:var(--display);font-size:0.85rem;letter-spacing:0.14em;text-transform:uppercase;color:var(--cobalt);margin-bottom:2rem}

/* --- ABOUT --- */
.about-text{font-size:clamp(1rem,2vw,1.15rem);line-height:1.65;max-width:660px;font-weight:300}
.about-text mark{background:var(--cobalt-bg);color:var(--ink);padding:0.05em 0.25em;border-radius:2px}

/* --- WORK GRID (interactive) --- */
.work-container{position:relative;min-height:200px}

/* default 2x2 */
.work-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:0;transition:opacity 0.25s}
.work-cell{
  padding:2rem 2.2rem;border:1px solid var(--rule);margin:-1px 0 0 -1px;
  cursor:pointer;transition:background 0.2s,box-shadow 0.2s;position:relative;
}
.work-cell:hover{background:var(--cobalt-bg);box-shadow:4px 4px 0 var(--cobalt)}
.work-cell h3{font-family:var(--display);font-size:0.85rem;text-transform:uppercase;letter-spacing:0.02em;pointer-events:none}
.work-cell h3::before{content:'';display:inline-block;width:8px;height:8px;background:var(--orange);margin-right:0.6rem;vertical-align:middle}
.work-cell p{display:none}
.work-cell .arrow{position:absolute;right:1.2rem;top:50%;transform:translateY(-50%);font-size:1.1rem;color:var(--cobalt);opacity:0;transition:opacity 0.2s}
.work-cell:hover .arrow{opacity:1}

/* expanded state */
.work-expanded{display:none;grid-template-columns:1fr 1fr;gap:0;opacity:0;transition:opacity 0.3s}
.work-expanded.active{display:grid;opacity:1}

.work-detail{padding:2.5rem;border:2px solid var(--cobalt);background:var(--cobalt-bg);display:flex;flex-direction:column;justify-content:center}
.work-detail h3{font-family:var(--display);font-size:0.9rem;text-transform:uppercase;letter-spacing:0.02em;margin-bottom:1rem;color:var(--cobalt)}
.work-detail h3::before{content:'';display:inline-block;width:8px;height:8px;background:var(--orange);margin-right:0.6rem;vertical-align:middle}
.work-detail p{font-size:0.82rem;color:var(--muted);line-height:1.7}
.work-detail .close-btn{
  margin-top:1.2rem;font-size:0.7rem;font-weight:500;letter-spacing:0.1em;
  text-transform:uppercase;color:var(--cobalt);cursor:pointer;
  background:none;border:none;font-family:var(--body);padding:0;
  transition:opacity 0.2s;
}
.work-detail .close-btn:hover{opacity:0.6}

.work-others{display:flex;flex-direction:column;gap:0}
.work-others .other-cell{
  flex:1;padding:1.5rem 2rem;border:1px solid var(--rule);margin-top:-1px;
  cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  transition:background 0.2s;
}
.work-others .other-cell:first-child{margin-top:0}
.work-others .other-cell:hover{background:var(--cobalt-bg)}
.work-others .other-cell h3{font-family:var(--display);font-size:0.78rem;text-transform:uppercase;letter-spacing:0.02em;pointer-events:none}
.work-others .other-cell h3::before{content:'';display:inline-block;width:6px;height:6px;background:var(--orange);margin-right:0.5rem;vertical-align:middle}
.work-others .other-cell .arrow{font-size:1rem;color:var(--cobalt);opacity:0.4;pointer-events:none}

@media(max-width:600px){
  .work-grid{grid-template-columns:1fr}
  .work-expanded{grid-template-columns:1fr}
  .work-expanded.active{display:flex;flex-direction:column}
}

/* --- EXPERIENCE --- */
.exp-list{display:flex;flex-direction:column;gap:0}
.exp-row{padding:1.5rem 0.8rem;border-bottom:1px solid var(--rule);transition:background 0.2s}
.exp-row:first-child{border-top:1px solid var(--rule)}
.exp-row:hover{background:var(--cobalt-bg)}
.exp-role{font-weight:500;font-size:0.9rem;margin-bottom:0.1rem}
.exp-org{font-weight:500;font-size:0.82rem;color:var(--ink);margin-bottom:0.4rem}
.exp-desc{font-size:0.78rem;color:var(--muted);line-height:1.65;max-width:640px}

/* --- METHOD NOTE --- */
.method{display:flex;gap:1.5rem;align-items:flex-start}
.method-bar{width:4px;flex-shrink:0;min-height:60px;background:var(--orange)}
.method p{font-size:0.88rem;color:var(--muted);line-height:1.65;max-width:600px;font-weight:300}

/* --- APPS --- */
.apps-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1rem}
.app-card{display:block;text-decoration:none;color:inherit;border:2px solid var(--ink);padding:1.4rem 2rem;transition:border-color 0.2s,box-shadow 0.2s}
.app-card:hover{border-color:var(--cobalt);box-shadow:4px 4px 0 var(--cobalt)}
.app-card h3{font-family:var(--display);font-size:0.85rem;text-transform:uppercase;color:var(--cobalt)}
.app-card p{font-size:0.75rem;color:var(--muted);margin-top:0.2rem;line-height:1.5}

/* --- EDU --- */
.edu-item{font-size:0.82rem;margin-bottom:0.3rem}
.edu-item strong{font-weight:500}
.edu-item span{color:var(--muted)}

/* --- FOOTER --- */
footer{padding:2rem 0 3.5rem;margin-top:2rem;border-top:4px solid var(--ink);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem;font-size:0.7rem;color:var(--muted)}
footer a{color:var(--muted);text-decoration:none;margin-left:1.2rem;transition:color 0.2s}
footer a:hover{color:var(--cobalt)}

/* --- REVEAL --- */
.rv{opacity:0;transform:translateY(12px);transition:opacity 0.5s,transform 0.5s}
.rv.show{opacity:1;transform:none}

/* --- PAGE UTILITIES --- */
.nav-links a.active{color:var(--ink)}
.mini-hero{padding:3.5rem 0 4.5rem;border-top:4px solid var(--ink);border-bottom:4px solid var(--ink)}
.mini-hero h1{font-family:var(--display);font-size:clamp(2.4rem,6vw,4.2rem);line-height:1.05;letter-spacing:-0.02em;text-transform:uppercase;margin-bottom:1rem}
.mini-hero h1 .co{color:var(--cobalt)}
.mini-hero h1 .or{color:var(--orange)}
.mini-hero p{font-size:1rem;color:var(--muted);max-width:620px;line-height:1.8}
.footer-links{display:flex;align-items:center;flex-wrap:wrap;gap:0.2rem}
.footer-links a{margin-left:1.2rem}
.resume-note{font-size:0.84rem;color:var(--muted);line-height:1.7;max-width:660px;margin-top:-1rem;margin-bottom:2rem}
.portfolio-intro{font-size:0.95rem;color:var(--muted);line-height:1.8;max-width:660px;margin-bottom:2rem}
.app-card.placeholder{border-color:var(--rule);box-shadow:none;background:rgba(255,255,255,0.35)}
.app-card.placeholder h3{color:var(--muted)}
.app-card.placeholder:hover{border-color:var(--rule);box-shadow:none}
@media(max-width:600px){
  .nav-links a{margin-left:0;margin-right:1rem;display:inline-block;margin-bottom:0.5rem}
  footer{align-items:flex-start}
  .footer-links a{margin-left:0;margin-right:1rem}
}

/* --- PORTFOLIO ARTIFACTS --- */
.portfolio-subhead{
  font-family:var(--display);font-size:0.95rem;letter-spacing:0.1em;
  text-transform:uppercase;color:var(--orange);margin:2.4rem 0 0.6rem;
}
.artifact-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem;margin:0 0 2.7rem}
.artifact-tile{
  border:2px solid var(--ink);background:var(--bg);padding:0;text-align:left;
  cursor:pointer;color:inherit;font-family:var(--body);transition:border-color 0.2s,box-shadow 0.2s;
}
.artifact-tile:hover{border-color:var(--cobalt);box-shadow:4px 4px 0 var(--cobalt)}
.artifact-tile img{display:block;width:100%;height:155px;object-fit:cover;border-bottom:2px solid var(--ink);background:var(--grid)}
.artifact-tile-copy{padding:1rem 1.1rem 1.15rem}
.artifact-tile h3{font-family:var(--display);font-size:0.8rem;text-transform:uppercase;color:var(--cobalt);margin-bottom:0.35rem;line-height:1.35}
.artifact-tile p{font-size:0.75rem;color:var(--muted);line-height:1.5}

.artifact-modal{display:none;position:fixed;inset:0;z-index:100;padding:2rem}
.artifact-modal.active{display:flex;align-items:center;justify-content:center}
.artifact-modal-bg{position:absolute;inset:0;background:rgba(17,17,17,0.76)}
.artifact-modal-box{
  position:relative;z-index:101;width:min(920px,100%);max-height:90vh;overflow:auto;
  background:var(--bg);border:4px solid var(--ink);box-shadow:8px 8px 0 var(--cobalt);
}
.artifact-modal-box img{display:block;width:100%;max-height:62vh;object-fit:contain;background:var(--grid);border-bottom:4px solid var(--ink)}
.artifact-modal-text{padding:1.4rem 1.6rem 1.7rem}
.artifact-modal-text h3{font-family:var(--display);font-size:1rem;text-transform:uppercase;color:var(--cobalt);margin-bottom:0.5rem}
.artifact-modal-text p{font-size:0.9rem;color:var(--muted);line-height:1.7;max-width:720px}
.artifact-close{
  position:absolute;top:0.6rem;right:0.6rem;width:2rem;height:2rem;
  border:2px solid var(--ink);background:var(--bg);font-size:1.4rem;line-height:1;
  cursor:pointer;z-index:102;
}
.artifact-close:hover{color:var(--orange)}
body.modal-open{overflow:hidden}
@media(max-width:600px){
  .artifact-modal{padding:1rem}
  .artifact-modal-box{max-height:92vh}
  .artifact-modal-box img{max-height:55vh}
}