:root{
  /* --- Color tokens (light) --- */
  --paper:        #F3F4EE;
  --paper-raised: #FAFAF6;
  --ink:          #172420;
  --ink-soft:     #3C4640;
  --pine:         #24503F;
  --pine-strong:  #163828;
  --pine-tint:    #E4ECE6;
  --ochre:        #A97F1E;
  --ochre-tint:   #F1E6C8;
  --glacier:      #3E6B8A;
  --sage:         #808F86;
  --line:         #D9DCD2;
  --line-strong:  #BFC5B8;
  --card:         #FFFFFF;
  --shadow:       0 1px 2px rgba(23,36,32,.04), 0 8px 24px -12px rgba(23,36,32,.12);

  --font-display: "Fraunces", "Iowan Old Style", Georgia, serif;
  --font-body:    "Inter", -apple-system, "Segoe UI", sans-serif;
  --font-mono:    "IBM Plex Mono", "SFMono-Regular", Menlo, monospace;

  --container: 1120px;
  --radius: 4px;
  --radius-lg: 10px;
  --nav-h: 72px;
}

[data-theme="dark"]{
  --paper:        #0F1712;
  --paper-raised: #141E18;
  --ink:          #ECEFE9;
  --ink-soft:     #B7C2BA;
  --pine:         #63AC87;
  --pine-strong:  #85C4A2;
  --pine-tint:    #17251E;
  --ochre:        #D8B15C;
  --ochre-tint:   #241D0F;
  --glacier:      #7FB1D1;
  --sage:         #7B897F;
  --line:         #223027;
  --line-strong:  #2E3F34;
  --card:         #131C16;
  --shadow:       0 1px 2px rgba(0,0,0,.3), 0 8px 24px -12px rgba(0,0,0,.5);
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-soft);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  transition:background .3s ease, color .3s ease;
}
body.no-scroll{ overflow:hidden; }

img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
button{ font-family:inherit; }

::selection{ background:var(--pine); color:#fff; }

:focus-visible{
  outline:2px solid var(--ochre);
  outline-offset:3px;
}

/* --- Reduced motion --- */
@media (prefers-reduced-motion: reduce){
  *{ animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important; scroll-behavior:auto !important; }
}

.container{
  max-width:var(--container);
  transition: background .2s ease;
  margin:0 auto;
  padding:0 28px;
}
.container:hover{
  background: rgba(0,0,0,.02);
}

/* ============================================================
   TYPOGRAPHY
   ============================================================ */
h1,h2,h3,h4{
  font-family:var(--font-display);
  color:var(--ink);
  font-weight:600;
  line-height:1.12;
  margin:0 0 .5em;
  letter-spacing:-.01em;
}
h1{ font-size:clamp(2.4rem, 5vw, 4.2rem); font-weight:500; }
h2{ font-size:clamp(1.8rem, 3.2vw, 2.6rem); }
h3{ font-size:1.35rem; }
h4{ font-size:1.05rem; }
p{ margin:0 0 1em; }

.lede{
  font-size:1.18rem;
  color:var(--ink-soft);
  max-width:62ch;
}

/* coordinate-tag / eyebrow label — the recurring signature element */
.coord-tag{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-family:var(--font-mono);
  font-size:.95rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--pine);
  margin-bottom:16px;
}
.coord-tag::before{
  content:"";
  width:7px; height:7px;
  border-radius:50%;
  background:var(--ochre);
  flex-shrink:0;
}
[data-theme="dark"] .coord-tag::before{ box-shadow:0 0 8px var(--ochre); }

.mono{ font-family:var(--font-mono); }

/* ============================================================
   CONTOUR / TOPOGRAPHIC BACKGROUND TEXTURE
   ============================================================ */
.contour-field{
  position:absolute; inset:0;
  overflow:hidden;
  pointer-events:none;
  z-index:0;
}
.contour-field svg{ width:100%; height:100%; opacity:.5; }
[data-theme="dark"] .contour-field svg{ opacity:.28; }

/* ============================================================
   NAVBAR
   ============================================================ */
.site-nav{
  position:sticky; top:0; z-index:1000;
  height:var(--nav-h);
  display:flex; align-items:center;
  background:rgba(243,244,238,.86);
  backdrop-filter:blur(10px) saturate(140%);
  border-bottom:1px solid var(--line);
}
[data-theme="dark"] .site-nav{ background:rgba(15,23,18,.86); }

.nav-inner{
  display:flex; align-items:center; justify-content:space-between;
  width:100%;
}
.brand{
  display:flex; align-items:center; gap:6px;  white-space: nowrap;
  font-family:var(--font-display);
  font-size:1.12rem; font-weight:600; color:var(--ink);
}
.brand .brand-mark{
  width:30px; height:30px;
  border-radius:50%;
  background:
    radial-gradient(circle at 35% 30%, var(--pine-strong), var(--pine) 60%);
  position:relative;
  flex-shrink:0;
}
.brand .brand-mark::after{
  content:"";
  position:absolute; inset:6px;
  border:1px solid rgba(255,255,255,.55);
  border-radius:50%;
}
.brand small{
  display:block;
  font-family:var(--font-mono);
  font-size:.62rem;
  color:var(--sage);
  font-weight:400;
  letter-spacing:.06em;
}

.nav-links{
  display:flex; align-items:center; gap:2px;
  flex-wrap:nowrap;
}
.nav-links a{
  font-size:.86rem;
  padding:8px 13px;
  border-radius:var(--radius);
  color:var(--ink-soft);
  white-space:nowrap;
  transition:color .15s, background .15s;
}
.nav-links a:hover, .nav-links a.active{
  color:var(--pine-strong);
  background:var(--pine-tint);
}

.nav-tools{ display:flex; align-items:center; gap:10px; margin-left:12px; }
.icon-btn{
  width:36px; height:36px;
  display:flex; align-items:center; justify-content:center;
  border-radius:50%;
  border:1px solid var(--line);
  background:var(--paper-raised);
  color:var(--ink-soft);
  cursor:pointer;
  transition:border-color .15s, color .15s, transform .15s;
}
.icon-btn:hover{ color:var(--pine); border-color:var(--pine); transform:translateY(-1px); }

.nav-toggle{
  display:none;
  width:38px; height:38px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--paper-raised);
  cursor:pointer;
  align-items:center; justify-content:center;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after{
  content:""; display:block; width:18px; height:2px; background:var(--ink); position:relative; transition:.2s;
}
.nav-toggle span::before{ position:absolute; top:-6px; }
.nav-toggle span::after{ position:absolute; top:6px; }

/* reading progress */
.reading-progress{
  position:fixed; top:0; left:0; height:3px;
  background:linear-gradient(90deg, var(--ochre), var(--pine));
  z-index:1200; width:0%;
  transition:width .1s linear;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn{
  display:inline-flex; align-items:center; gap:9px;
  padding:13px 24px;
  font-size:.88rem; font-weight:600;
  border-radius:var(--radius);
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .15s ease, box-shadow .15s ease, background .15s, color .15s, border-color .15s;
}
.btn-primary{ background:var(--pine); color:#fff; }
.btn-primary:hover{ background:var(--pine-strong); transform:translateY(-2px); box-shadow:var(--shadow); }
.btn-outline{ background:transparent; color:var(--ink); border-color:var(--line-strong); }
.btn-outline:hover{ border-color:var(--pine); color:var(--pine-strong); transform:translateY(-2px); }
.btn-ghost{ background:var(--pine-tint); color:var(--pine-strong); }
.btn-ghost:hover{ background:var(--pine); color:#fff; }
.btn-sm{ padding:9px 16px; font-size:.78rem; }
.btn-row{ display:flex; gap:14px; flex-wrap:wrap; margin-top:32px; }

/* ============================================================
   HERO
   ============================================================ */
.hero{
  position:relative;
  padding:88px 0 96px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.hero-grid{
  position:relative; z-index:1;
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:56px;
  align-items:center;
}
.hero h1{ margin-bottom:.28em; }
.hero h1 .accent{ color:var(--pine); font-style:italic; }
.hero-role{
  font-family:var(--font-mono);
  font-size:.95rem;
  color:var(--glacier);
  margin-bottom:20px;
}
.hero-tags{ display:flex; flex-wrap:wrap; gap:9px; margin-top:26px; }
.tag{
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.03em;
  padding:6px 11px;
  border:1px solid var(--line-strong);
  border-radius:20px;
  color:var(--ink-soft);
}

.hero-portrait{
  position:relative;
  aspect-ratio:4/5;
  border-radius:var(--radius-lg);
  background:linear-gradient(160deg, var(--pine-tint), var(--paper-raised));
  border:1px solid var(--line);
  display:flex; align-items:center; justify-content:center;
  overflow:hidden;
}
.hero-portrait .placeholder-figure{
  width:56%; opacity:.9;
}
.hero-portrait .frame-label{
  position:absolute; bottom:32px; left:14px; right:14px;
  font-family:var(--font-mono); font-size:.66rem; letter-spacing:.08em;
  color:var(--sage); text-transform:uppercase;
  display:flex; justify-content:space-between;
}

.scanline{
  height:2px; width:100%;
  background:linear-gradient(90deg, transparent, var(--pine), var(--ochre), transparent);
  background-size:200% 100%;
  animation:scan 5s linear infinite;
  margin-top:56px;
}
@keyframes scan{ 0%{background-position:200% 0;} 100%{background-position:-200% 0;} }

/* stat counters */
.stat-row{
  display:grid; grid-template-columns:repeat(4,1fr);
  gap:1px; background:var(--line);
  border:1px solid var(--line);
  margin-top:52px;
  border-radius:var(--radius-lg);
  overflow:hidden;
}
.stat{
  background:var(--paper-raised);
  padding:26px 20px;
  text-align:left;
   transition: transform .2s ease, background .2s ease;
  cursor: default;
}
.stat:hover{
  transform: translateY(-4px);
  background: rgba(0,0,0,.03);
}
.stat .num{
  font-family:var(--font-display);
  font-size:2.1rem; color:var(--pine-strong); font-weight:600;
  display:flex; align-items:baseline; gap:2px;
}
.stat .label{
  font-family:var(--font-mono); font-size:.68rem; letter-spacing:.05em;
  text-transform:uppercase; color:var(--sage); margin-top:4px;
}

/* ============================================================
   SECTIONS
   ============================================================ */
section{ padding:88px 0; position:relative; }
section.tight{ padding:56px 0; }
.section-head{ max-width:640px; margin-bottom:52px; }
.section-head.center{ margin-left:auto; margin-right:auto; text-align:center; }
.alt-bg{ background:var(--paper-raised); border-top:1px solid var(--line); border-bottom:1px solid var(--line); }

.two-col{ display:grid; grid-template-columns:280px 1fr; gap:56px; }

/* ============================================================
   CARDS
   ============================================================ */
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:28px;
  transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.card:hover{ transform:translateY(-4px); box-shadow:var(--shadow); border-color:var(--line-strong); }

.grid-2{ display:grid; grid-template-columns:repeat(2,1fr); gap:24px; }
.grid-3{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
.grid-4{ display:grid; grid-template-columns:repeat(4,1fr); gap:20px; }

/* project card */
.project-card .thumb{
  aspect-ratio:16/10;
  border-radius:var(--radius);
  background:linear-gradient(135deg, var(--pine-tint), var(--ochre-tint));
  margin-bottom:18px;
  position:relative; overflow:hidden;
  border:1px solid var(--line);
}
.project-card .thumb svg{ width:100%; height:100%; }
.status-chip{
  position:absolute; top:12px; left:12px;
  font-family:var(--font-mono); font-size:.64rem; letter-spacing:.06em; text-transform:uppercase;
  padding:4px 9px; border-radius:20px;
  background:rgba(255,255,255,.88); color:var(--pine-strong);
  border:1px solid var(--line);
}
[data-theme="dark"] .status-chip{ background:rgba(15,23,18,.85); }
.stack-row{ display:flex; flex-wrap:wrap; gap:7px; margin:14px 0; }
.stack-chip{
  font-family:var(--font-mono); font-size:.68rem;
  padding:4px 9px; background:var(--pine-tint); color:var(--pine-strong);
  border-radius:4px;
}
.card-links{ display:flex; gap:16px; margin-top:14px; font-size:.85rem; }
.card-links a{ color:var(--glacier); display:flex; align-items:center; gap:6px; }
.card-links a:hover{ color:var(--pine-strong); }

/* timeline */
.timeline{ position:relative; padding-left:32px; border-left:1px solid var(--line-strong); }
.timeline-item{ position:relative; padding-bottom:44px; }
.timeline-item:last-child{ padding-bottom:0; }
.timeline-item::before{
  content:""; position:absolute; left:-37px; top:4px;
  width:11px; height:11px; border-radius:50%;
  background:var(--paper); border:2px solid var(--pine);
}
.timeline-date{ font-family:var(--font-mono); font-size:.72rem; color:var(--ochre); letter-spacing:.05em; margin-bottom:6px; display:block; }

/* skills */
.skill-group{ margin-bottom:36px; }
.skill-group h4{ display:flex; align-items:center; gap:10px; color:var(--pine-strong); }
.skill-bar-row{ margin-bottom:16px; }
.skill-bar-label{ display:flex; justify-content:space-between; font-size:.86rem; margin-bottom:6px; }
.skill-bar-label span:last-child{ font-family:var(--font-mono); color:var(--sage); font-size:.76rem; }
.skill-bar-track{ height:6px; background:var(--line); border-radius:6px; overflow:hidden; }
.skill-bar-fill{
  height:100%; border-radius:6px;
  background:linear-gradient(90deg, var(--pine), var(--pine-strong));
  width:0%;
  transition:width 1.1s cubic-bezier(.2,.8,.2,1);
}

/* publication card */
.pub-card{ display:flex; gap:20px; padding:26px 0; border-bottom:1px solid var(--line); }
.pub-card:last-child{ border-bottom:none; }
.pub-type{
  font-family:var(--font-mono); font-size:.65rem; text-transform:uppercase; letter-spacing:.08em;
  color:var(--ochre); width:112px; flex-shrink:0; padding-top:3px;
}
.pub-meta{ font-size:.85rem; color:var(--sage); margin-top:6px; }
.pub-links{ display:flex; gap:14px; margin-top:12px; font-family:var(--font-mono); font-size:.74rem; }
.pub-links a{ color:var(--glacier); }
.pub-links a:hover{ text-decoration:underline; }

/* certification card */
.cert-card{ display:flex; gap:18px; align-items:flex-start; }
.cert-badge{
  width:52px; height:52px; flex-shrink:0; border-radius:50%;
  background:var(--pine-tint); display:flex; align-items:center; justify-content:center;
  color:var(--pine-strong);
}

/* achievements */
.achieve-card{ text-align:center; }
.achieve-icon{
  width:52px; height:52px; border-radius:50%;
  background:var(--ochre-tint); color:var(--ochre);
  display:flex; align-items:center; justify-content:center;
  margin:0 auto 16px;
}

/* blog */
.blog-card .thumb{ aspect-ratio:16/9; }
.blog-meta{ font-family:var(--font-mono); font-size:.7rem; color:var(--sage); margin-bottom:8px; letter-spacing:.04em; }
.category-pill{ color:var(--pine-strong); }

/* gallery */
.gallery-grid{ columns:3; column-gap:16px; }
.gallery-item{ break-inside:avoid; margin-bottom:16px; border-radius:var(--radius); overflow:hidden; border:1px solid var(--line); }
.gallery-item .ph{ aspect-ratio: var(--ar, 1); }
.gallery-filter{ display:flex; gap:8px; flex-wrap:wrap; margin-bottom:32px; }
.filter-chip{
  padding:8px 16px; border:1px solid var(--line-strong); border-radius:20px;
  font-size:.82rem; cursor:pointer; background:transparent; color:var(--ink-soft);
  transition:.15s;
}
.filter-chip.active, .filter-chip:hover{ background:var(--pine); color:#fff; border-color:var(--pine); }

/* placeholder illustration */
.ph-illustration{ width:100%; height:100%; display:block; }

/* contact form */
.form-field{ margin-bottom:20px; }
.form-field label{ display:block; font-size:.82rem; font-weight:600; color:var(--ink); margin-bottom:7px; }
.form-field input, .form-field textarea{
  width:100%; padding:13px 15px; border:1px solid var(--line-strong); border-radius:var(--radius);
  background:var(--paper-raised); color:var(--ink); font-family:var(--font-body); font-size:.92rem;
  transition:border-color .15s;
}
.form-field input:focus, .form-field textarea:focus{ outline:none; border-color:var(--pine); }
.form-status{ margin-top:14px; font-size:.86rem; font-family:var(--font-mono); }

.social-list{ display:flex; flex-direction:column; gap:14px; }
.social-list a{
  display:flex; align-items:center; gap:12px;
  padding:12px 16px; border:1px solid var(--line); border-radius:var(--radius);
  transition:.15s;
}
.social-list a:hover{ border-color:var(--pine); background:var(--pine-tint); color:var(--pine-strong); }

.map-placeholder{
  aspect-ratio:16/9; border-radius:var(--radius-lg); border:1px solid var(--line);
  background:var(--paper-raised); position:relative; overflow:hidden;
}

/* newsletter */
.newsletter{
  background:var(--pine-strong); color:#fff; border-radius:var(--radius-lg);
  padding:52px; display:flex; justify-content:space-between; align-items:center; gap:32px; flex-wrap:wrap;
}
.newsletter h3{ color:#fff; margin-bottom:6px; }
.newsletter form{ display:flex; gap:10px; }
.newsletter input{
  padding:12px 16px; border-radius:var(--radius); border:1px solid rgba(255,255,255,.3);
  background:rgba(255,255,255,.1); color:#fff; min-width:240px;
}
.newsletter input::placeholder{ color:rgba(255,255,255,.6); }

/* github contribution placeholder */
.contrib-grid{ display:grid; grid-template-columns:repeat(26,1fr); gap:3px; }
.contrib-cell{ aspect-ratio:1; border-radius:2px; background:var(--line); }

/* back to top */
.back-to-top{
  position:fixed; bottom:28px; right:28px; z-index:900;
  width:46px; height:46px; border-radius:50%;
  background:var(--pine); color:#fff; border:none; cursor:pointer;
  display:flex; align-items:center; justify-content:center;
  opacity:0; visibility:hidden; transform:translateY(10px);
  transition:.25s; box-shadow:var(--shadow);
}
.back-to-top.show{ opacity:1; visibility:visible; transform:translateY(0); }

/* loading screen */
.loader{
  position:fixed; inset:0; z-index:3000;
  background:var(--paper);
  display:flex; align-items:center; justify-content:center; flex-direction:column; gap:16px;
  transition:opacity .5s ease, visibility .5s ease;
}
.loader.hide{ opacity:0; visibility:hidden; pointer-events:none; }
.loader-mark{
  width:44px; height:44px; border-radius:50%;
  border:2px solid var(--line);
  border-top-color:var(--pine);
  animation:spin 1s linear infinite;
}
@keyframes spin{ to{ transform:rotate(360deg); } }
.loader-text{ font-family:var(--font-mono); font-size:.72rem; letter-spacing:.1em; color:var(--sage); text-transform:uppercase; }

/* typing animation */
.typewriter::after{
  content:"|"; margin-left:2px; color:var(--pine); animation:blink 1s step-end infinite;
}
@keyframes blink{ 50%{ opacity:0; } }

/* scroll reveal */
.reveal{ opacity:0; transform:translateY(18px); transition:opacity .6s ease, transform .6s ease; }
.reveal.in{ opacity:1; transform:translateY(0); }

/* search bar */
.search-wrap{ position:relative; margin-bottom:40px; }
.search-wrap input{
  width:100%; padding:15px 46px 15px 18px; border:1px solid var(--line-strong); border-radius:var(--radius-lg);
  background:var(--paper-raised); color:var(--ink); font-size:.95rem;
}
.search-wrap svg{ position:absolute; right:16px; top:50%; transform:translateY(-50%); color:var(--sage); }

/* resume preview */
.resume-preview{
  background:var(--card); border:1px solid var(--line); border-radius:var(--radius-lg);
  padding:52px; max-width:760px; margin:0 auto; box-shadow:var(--shadow);
}
.resume-preview h2{ border-bottom:2px solid var(--pine); padding-bottom:10px; }
.resume-section{ margin-bottom:28px; }
.resume-section h4{ text-transform:uppercase; letter-spacing:.06em; font-size:.82rem; color:var(--pine-strong); border-bottom:1px solid var(--line); padding-bottom:6px; margin-bottom:14px; }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer{
  background:var(--ink); color:#c8d1cb;
  padding:64px 0 28px;
  margin-top:0;
}
[data-theme="dark"] .site-footer{ background:#0A100C; }
.footer-grid{ display:grid; grid-template-columns:1.3fr 1fr 1fr 1fr; gap:40px; padding-bottom:40px; border-bottom:1px solid rgba(255,255,255,.1); }
.site-footer h5{ color:#fff; font-family:var(--font-mono); font-size:.72rem; letter-spacing:.1em; text-transform:uppercase; margin-bottom:18px; }
.site-footer a{ color:#a9b5ad; font-size:.88rem; display:block; margin-bottom:10px; transition:.15s; }
.site-footer a:hover{ color:#fff; }
.footer-bottom{ display:flex; justify-content:space-between; align-items:center; padding-top:24px; font-size:.78rem; color:#7d8b82; flex-wrap:wrap; gap:12px; }
.footer-social{ display:flex; gap:14px; }
.footer-social a{ width:34px; height:34px; border:1px solid rgba(255,255,255,.15); border-radius:50%; display:flex; align-items:center; justify-content:center; margin:0; }

/* visitor counter */
.visitor-counter{ font-family:var(--font-mono); font-size:.72rem; color:var(--sage); }

/* dividers */
.hr{ height:1px; background:var(--line); border:none; margin:0; }

/* utility */
.mt-0{margin-top:0;} .mb-0{margin-bottom:0;}
.center{ text-align:center; }
.flex{ display:flex; }
.gap-12{ gap:12px; }
.w-full{ width:100%; }