:root{
  --paper:#F5F6F3;
  --paper-dim:#ECEDE9;
  --ink:#14171A;
  --ink-soft:#4B5259;
  --teal:#1C5F5A;
  --teal-soft:#E4EEEC;
  --amber:#B98A3D;
  --line:#DCDED8;
  --radius:2px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *{animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important;}
}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:'Inter',sans-serif;
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3{
  font-family:'Space Grotesk',sans-serif;
  font-weight:600;
  margin:0;
  letter-spacing:-0.01em;
}
.mono{ font-family:'IBM Plex Mono',monospace; }
a{color:inherit;}
.wrap{
  max-width:920px;
  margin:0 auto;
  padding:0 32px;
}

/* ---------- NAV ---------- */
nav{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(245,246,243,0.88);
  backdrop-filter:blur(6px);
  border-bottom:1px solid var(--line);
}
nav .wrap{
  display:flex;
  justify-content:space-between;
  align-items:center;
  height:64px;
}
.nav-name{
  font-family:'Space Grotesk',sans-serif;
  font-weight:600;
  font-size:15px;
  text-decoration:none;
}
.nav-links{
  display:flex;
  gap:28px;
  list-style:none;
  margin:0;
  padding:0;
}
.nav-links a{
  text-decoration:none;
  font-size:13px;
  font-family:'IBM Plex Mono',monospace;
  color:var(--ink-soft);
  letter-spacing:0.02em;
  transition:color 0.2s ease;
}
.nav-links a:hover{color:var(--teal);}
@media (max-width:640px){ .nav-links{display:none;} }

/* ---------- HERO ---------- */
header.hero{
  padding:96px 0 72px;
  border-bottom:1px solid var(--line);
}
.eyebrow{
  font-family:'IBM Plex Mono',monospace;
  font-size:12px;
  letter-spacing:0.08em;
  text-transform:uppercase;
  color:var(--teal);
  margin-bottom:18px;
  display:flex;
  align-items:center;
  gap:10px;
}
.eyebrow::before{
  content:'';
  width:8px;height:8px;
  background:var(--teal);
  display:inline-block;
  border-radius:50%;
}
.hero h1{
  font-size:clamp(38px,6vw,58px);
  line-height:1.05;
  max-width:720px;
}
.hero p.lede{
  margin-top:22px;
  max-width:560px;
  font-size:17px;
  color:var(--ink-soft);
}
.hero-links{
  margin-top:32px;
  display:flex;
  gap:18px;
  flex-wrap:wrap;
}
.hero-links a{
  text-decoration:none;
  font-family:'IBM Plex Mono',monospace;
  font-size:13px;
  padding:10px 16px;
  border:1px solid var(--ink);
  border-radius:var(--radius);
  transition:background 0.2s ease, color 0.2s ease;
}
.hero-links a.primary{ background:var(--ink); color:var(--paper); }
.hero-links a.primary:hover{background:var(--teal); border-color:var(--teal);}
.hero-links a:not(.primary):hover{background:var(--paper-dim);}

/* signature scanline */
.scan-wrap{ margin-top:56px; width:100%; height:64px; }
.scan-wrap svg{width:100%; height:100%; display:block;}
.scan-path{
  stroke:var(--teal);
  stroke-width:1.6;
  fill:none;
  stroke-dasharray:900;
  stroke-dashoffset:900;
  animation:draw 2.2s ease-out forwards 0.3s;
}
.scan-dots circle{
  fill:var(--amber);
  opacity:0;
  animation:fadeIn 0.5s ease forwards;
}
@keyframes draw{ to { stroke-dashoffset:0; } }
@keyframes fadeIn{ to { opacity:1; } }

/* ---------- SECTIONS ---------- */
section{ padding:64px 0; border-bottom:1px solid var(--line); }
section:last-of-type{border-bottom:none;}
.section-head{
  display:flex;
  align-items:baseline;
  gap:14px;
  margin-bottom:36px;
}
.section-num{ font-family:'IBM Plex Mono',monospace; font-size:12px; color:var(--amber); }
.section-head h2{font-size:22px;}

/* about */
.about-grid{ display:flex; flex-direction:column; gap:6px; }
.about-grid p{color:var(--ink-soft); margin:0 0 16px; max-width:640px;}

/* oloid — footer corner accent (simple 2D rotation, no 3D/perspective dependency) */
.footer-row{
  position:relative;
  display:flex;
  justify-content:center;
  align-items:center;
  margin-bottom:48px;
}
.oloid-stage{
  width:44px;
  height:44px;
}
.oloid-stage.corner{
  position:absolute;
  right:0;
  top:50%;
  transform:translateY(-50%);
}
@media (max-width:640px){ .oloid-stage.corner{ display:none; } }
.oloid{
  position:relative;
  width:100%;
  height:100%;
  animation:oloid-rotate 6s linear infinite;
}
.oloid-ring{
  position:absolute;
  border:1.4px solid var(--teal);
  border-radius:50%;
}
.oloid-ring.a{ inset:0; }
.oloid-ring.b{ top:9px; left:16px; width:65%; height:65%; opacity:0.6; }
@keyframes oloid-rotate{
  from{ transform:rotate(0deg); }
  to{ transform:rotate(360deg); }
}

/* category tiles on homepage */
.category-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
}
@media (max-width:720px){ .category-grid{grid-template-columns:1fr;} }
.category-tile{
  background:var(--paper);
  padding:32px 28px;
  text-decoration:none;
  color:var(--ink);
  display:block;
  transition:background 0.2s ease;
}
.category-tile:hover{background:var(--paper-dim);}
.category-tile .cat-num{
  font-family:'IBM Plex Mono',monospace;
  font-size:11px;
  color:var(--amber);
  display:block;
  margin-bottom:14px;
}
.category-tile h3{font-size:19px; margin-bottom:8px;}
.category-tile p{font-size:13.5px; color:var(--ink-soft); margin:0 0 16px;}
.category-tile .cat-go{
  font-family:'IBM Plex Mono',monospace;
  font-size:12.5px;
  color:var(--teal);
}
.category-tile:hover .cat-go{text-decoration:underline;}

/* project detail pages */
.back-link{
  display:inline-block;
  margin-bottom:32px;
  font-family:'IBM Plex Mono',monospace;
  font-size:13px;
  text-decoration:none;
  color:var(--ink-soft);
  border-bottom:1px solid var(--line);
}
.back-link:hover{color:var(--teal); border-color:var(--teal);}
.project-list{ display:flex; flex-direction:column; gap:1px; background:var(--line); border:1px solid var(--line); }
.project-card{ background:var(--paper); padding:28px; }
.project-card .p-tag{
  font-family:'IBM Plex Mono',monospace;
  font-size:11px;
  color:var(--teal);
  text-transform:uppercase;
  letter-spacing:0.06em;
  margin-bottom:10px;
  display:block;
}
.project-card h3{font-size:18px; margin-bottom:10px;}
.project-card p{font-size:14.5px; color:var(--ink-soft); max-width:640px; margin:0 0 16px;}
.p-links{display:flex; gap:14px;}
.p-links a{
  font-family:'IBM Plex Mono',monospace;
  font-size:12.5px;
  text-decoration:none;
  color:var(--ink);
  border-bottom:1px solid var(--ink);
}
.p-links a:hover{color:var(--teal); border-color:var(--teal);}

.pager{ display:flex; justify-content:center; gap:16px; margin-top:32px; }
.pager button{
  font-family:'IBM Plex Mono',monospace;
  font-size:13px;
  background:none;
  border:1px solid var(--ink);
  padding:8px 18px;
  cursor:pointer;
  color:var(--ink);
  border-radius:var(--radius);
  transition:background 0.2s ease, color 0.2s ease;
}
.pager button:hover:not(:disabled){background:var(--ink); color:var(--paper);}
.pager button:disabled{opacity:0.35; cursor:default;}

.note-card{
  background:var(--teal-soft);
  border:1px dashed var(--teal);
  padding:20px 24px;
  font-size:13.5px;
  color:var(--teal);
  font-family:'IBM Plex Mono',monospace;
}

/* skills */
.skills-block h3{
  font-size:13px;
  font-family:'IBM Plex Mono',monospace;
  text-transform:uppercase;
  letter-spacing:0.05em;
  color:var(--amber);
  margin-bottom:16px;
}
.tag-list{display:flex; flex-wrap:wrap; gap:8px;}
.tag{
  font-size:12.5px;
  padding:5px 10px;
  background:var(--teal-soft);
  color:var(--teal);
  border-radius:var(--radius);
  font-family:'IBM Plex Mono',monospace;
}

/* contact form */
.msg-form{
  max-width:480px;
  margin:0 auto 40px;
  text-align:left;
}
.msg-form .field-row{
  display:flex;
  gap:12px;
  margin-bottom:12px;
}
@media (max-width:480px){ .msg-form .field-row{ flex-direction:column; } }
.msg-form input,
.msg-form textarea{
  width:100%;
  font-family:'Inter',sans-serif;
  font-size:14.5px;
  color:var(--ink);
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:11px 14px;
  resize:vertical;
}
.msg-form input::placeholder,
.msg-form textarea::placeholder{ color:#9AA09A; }
.msg-form input:focus,
.msg-form textarea:focus{
  outline:none;
  border-color:var(--teal);
}
.msg-form textarea{ margin-bottom:14px; min-height:96px; }
.msg-form button{
  font-family:'IBM Plex Mono',monospace;
  font-size:13px;
  background:var(--ink);
  color:var(--paper);
  border:1px solid var(--ink);
  padding:10px 22px;
  border-radius:var(--radius);
  cursor:pointer;
  transition:background 0.2s ease;
}
.msg-form button:hover{ background:var(--teal); border-color:var(--teal); }
#form-status{
  margin:12px 0 0;
  font-family:'IBM Plex Mono',monospace;
  font-size:12.5px;
}
#form-status.success{ color:var(--teal); }
#form-status.error{ color:#B94A3D; }
#form-status.sending{ color:var(--ink-soft); }

/* contact / footer */
footer{ padding:72px 0 48px; text-align:center; }
footer h2{font-size:clamp(26px,4vw,36px); margin-bottom:16px;}
footer p{color:var(--ink-soft); max-width:440px; margin:0 auto 32px;}
.contact-links{
  display:flex;
  justify-content:center;
  gap:24px;
  flex-wrap:wrap;
}
.contact-links a{
  text-decoration:none;
  font-family:'IBM Plex Mono',monospace;
  font-size:13.5px;
  padding-bottom:2px;
  border-bottom:1px solid var(--line);
  transition:border-color 0.2s ease, color 0.2s ease;
}
.contact-links a:hover{color:var(--teal); border-color:var(--teal);}
.foot-note{ font-size:11.5px; color:#9AA09A; font-family:'IBM Plex Mono',monospace; }