:root {
  --font: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --maxw: 1180px;
  --gutter: 64px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}
/* ---------- warm monochrome themes ---------- */
html[data-theme="dark"] {
  --bg:        #100e0b;
  --bg-soft:   #15120e;
  --panel:     #1a1612;
  --panel-2:   #201b16;
  --line:      #2c2620;
  --line-soft: #221d18;
  --fg:        #f3ede2;
  --fg-2:      #c4b8a6;
  --fg-3:      #8c8175;
  --fg-4:      #5e564c;
  --grain: 0.035;
}
html[data-theme="light"] {
  --bg:        #f4eee3;
  --bg-soft:   #efe7d9;
  --panel:     #eae1d1;
  --panel-2:   #e3d9c6;
  --line:      #d6c9b4;
  --line-soft: #ded2bf;
  --fg:        #1a1510;
  --fg-2:      #4d453a;
  --fg-3:      #8a7d6b;
  --fg-4:      #b3a690;
  --grain: 0.02;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--fg);
  font-size: 15px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  font-feature-settings: "calt" 1, "liga" 1;
  transition: background 0.5s var(--ease), color 0.5s var(--ease);
  overflow-x: hidden;
}
/* film grain overlay */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9000;
  opacity: var(--grain);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
}
a { color: inherit; text-decoration: none; }
::selection { background: var(--fg); color: var(--bg); }

/* ---------- status bar ---------- */
.bar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 46px;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 18px;
  background: color-mix(in oklab, var(--bg) 82%, transparent);
  backdrop-filter: blur(14px) saturate(1.1);
  -webkit-backdrop-filter: blur(14px) saturate(1.1);
  border-bottom: 1px solid var(--line);
  font-size: 12.5px;
  letter-spacing: 0.01em;
}
.bar-left { display: flex; align-items: center; gap: 10px; min-width: 0; }
.dot { width: 9px; height: 9px; border-radius: 50%; background: var(--fg-3);
  box-shadow: 0 0 0 0 color-mix(in oklab, var(--fg) 50%, transparent); }
html[data-theme="dark"] .dot { background: #d8cfbf; animation: pulse 3.4s var(--ease) infinite; }
@keyframes pulse { 0%,100%{ box-shadow:0 0 0 0 rgba(216,207,191,0.0);} 50%{ box-shadow:0 0 0 4px rgba(216,207,191,0.10);} }
.prompt { color: var(--fg-2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.prompt b { color: var(--fg); font-weight: 600; }
.prompt .cur { display:inline-block; width:7px; height:14px; background:var(--fg); margin-left:2px; vertical-align:-2px; animation: blink 1.1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

.bar-nav { display: flex; align-items: center; gap: 4px; }
.bar-nav a {
  color: var(--fg-3);
  padding: 5px 10px;
  border-radius: 6px;
  transition: color 0.2s, background 0.2s;
  position: relative;
}
.bar-nav a:hover { color: var(--fg); background: var(--panel); }
.bar-nav a.active { color: var(--fg); }
.bar-nav a.active::before { content:"›"; position:absolute; left:1px; color:var(--fg-3); }
.bar-right { display: flex; align-items: center; gap: 14px; }
.clock { color: var(--fg-3); font-variant-numeric: tabular-nums; font-size: 12px; white-space: nowrap; }
.clock b { color: var(--fg-2); font-weight: 500; }
.toggle {
  display: inline-flex; align-items: center; gap: 7px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--fg-2);
  padding: 5px 9px;
  border-radius: 7px;
  cursor: pointer;
  font-family: var(--font);
  font-size: 11.5px;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.toggle:hover { border-color: var(--fg-3); color: var(--fg); }
.toggle .ico { width: 13px; height: 13px; }

/* scroll progress */
.progress { position: fixed; top: 46px; left: 0; height: 2px; width: 0%; background: var(--fg); z-index: 999; transition: width 0.1s linear; opacity: 0.85; }

/* ---------- layout ---------- */
main { max-width: var(--maxw); margin: 0 auto; padding: 0 28px 120px; }
.wrap { padding-top: 46px; }

/* section header as comment */
.sec { padding-top: 96px; scroll-margin-top: 70px; }
.sec-head { display: flex; align-items: baseline; gap: 12px; margin-bottom: 34px; padding-bottom: 14px; border-bottom: 1px solid var(--line); }
.sec-num { color: var(--fg-4); font-size: 13px; font-weight: 600; letter-spacing: 0.05em; }
.sec-slash { color: var(--fg-4); font-size: 15px; }
.sec-head h2 { font-size: 15px; font-weight: 600; color: var(--fg); letter-spacing: 0.02em; text-transform: lowercase; }
.sec-meta { color: var(--fg-3); font-size: 13px; margin-left: auto; font-weight: 300; }

/* ---------- hero ---------- */
.hero { padding-top: 74px; padding-bottom: 44px; display: grid; grid-template-columns: 1.35fr 0.85fr; gap: 56px; align-items: center; }
.term {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 30px 80px -40px rgba(0,0,0,0.55);
}
.term-bar { display: flex; align-items: center; gap: 7px; padding: 11px 14px; border-bottom: 1px solid var(--line); background: var(--panel-2); }
.tb-dot { width: 11px; height: 11px; border-radius: 50%; background: var(--line); border: 1px solid color-mix(in oklab, var(--fg-4) 60%, transparent); }
.term-bar span { margin-left: 8px; color: var(--fg-3); font-size: 12px; }
.term-body { padding: 22px 22px 26px; font-size: 14px; line-height: 1.9; min-height: 232px; }
.tl { white-space: pre-wrap; }
.tl .c { color: var(--fg-4); }      /* command prefix */
.tl .k { color: var(--fg); }        /* command */
.tl .o { color: var(--fg-2); }      /* output */
.tl .o b { color: var(--fg); font-weight: 600; }
.typed-cur { display:inline-block; width:8px; height:15px; background:var(--fg); vertical-align:-3px; animation: blink 1.1s steps(1) infinite; }

.hero-lead h1 { font-size: clamp(30px, 4.4vw, 52px); line-height: 1.08; font-weight: 700; letter-spacing: -0.02em; margin-bottom: 22px; }
.hero-lead h1 .mut { color: var(--fg-3); font-weight: 400; }
.hero-lead .sub { color: var(--fg-2); font-size: 15px; max-width: 46ch; margin-bottom: 26px; font-weight: 300; }
.hero-lead .sub b { color: var(--fg); font-weight: 500; }
.meta-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 30px; }
.chip { border: 1px solid var(--line); color: var(--fg-3); font-size: 12px; padding: 5px 11px; border-radius: 999px; background: var(--bg-soft); }
.chip b { color: var(--fg-2); font-weight: 500; }
.cta-row { display: flex; flex-wrap: wrap; gap: 10px; }
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--fg);
  padding: 11px 16px;
  border-radius: 9px;
  font-family: var(--font);
  font-size: 13px;
  cursor: pointer;
  transition: transform 0.18s var(--ease), border-color 0.2s, background 0.2s;
}
.btn:hover { transform: translateY(-2px); border-color: var(--fg-3); }
.btn.primary { background: var(--fg); color: var(--bg); border-color: var(--fg); }
.btn.primary:hover { background: var(--fg-2); }
.btn .ar { transition: transform 0.2s var(--ease); }
.btn:hover .ar { transform: translateX(3px); }

/* headshot */
.portrait { position: relative; }
.portrait .frame {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  background: var(--panel);
}
.portrait .img-wrap { position: relative; aspect-ratio: 4/5; overflow: hidden; }
.portrait img { width: 100%; height: 100%; object-fit: cover; display: block; filter: grayscale(1) contrast(1.04) brightness(0.96); transition: filter 0.4s; }
html[data-theme="light"] .portrait img { filter: grayscale(1) contrast(1.02) brightness(1.02); }
.portrait .img-wrap::after { content:""; position:absolute; inset:0; pointer-events:none;
  background: repeating-linear-gradient(0deg, transparent 0 2px, color-mix(in oklab, var(--bg) 24%, transparent) 2px 3px);
  mix-blend-mode: multiply; opacity: 0.5; }
html[data-theme="dark"] .portrait .img-wrap::after { mix-blend-mode: screen; opacity: 0.18; }
.portrait .img-wrap::before { content:""; position:absolute; inset:0; z-index:2; pointer-events:none;
  background: linear-gradient(180deg, transparent 55%, color-mix(in oklab, var(--bg) 70%, transparent)); }
.ph-fallback { width:100%; height:100%; display:flex; align-items:center; justify-content:center; font-size:64px; font-weight:700; color:var(--fg-4); background:
  repeating-linear-gradient(135deg, var(--panel) 0 9px, var(--panel-2) 9px 18px); }
.portrait .cap { display: flex; align-items: center; justify-content: space-between; padding: 10px 14px; border-top: 1px solid var(--line); font-size: 11.5px; color: var(--fg-3); background: var(--panel-2); }
.portrait .cap b { color: var(--fg-2); font-weight: 500; }
.portrait .cap .ok { color: var(--fg-2); }

/* ---------- stack ---------- */
.stack-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.cat {
  border: 1px solid var(--line);
  border-radius: 11px;
  background: var(--panel);
  overflow: hidden;
}
.cat-head { display: flex; align-items: center; gap: 8px; padding: 13px 16px; border-bottom: 1px solid var(--line-soft); background: var(--panel-2); }
.cat-head .nm { color: var(--fg); font-weight: 600; font-size: 13.5px; }
.cat-head .ct { margin-left: auto; color: var(--fg-4); font-size: 11px; }
.cat ul { list-style: none; }
.cat li { display: flex; align-items: baseline; gap: 14px; padding: 10px 16px; border-bottom: 1px solid var(--line-soft); transition: background 0.18s, padding 0.18s; }
.cat li:last-child { border-bottom: none; }
.cat li:hover { background: var(--panel-2); padding-left: 22px; }
.cat li .t { color: var(--fg); font-size: 13.5px; font-weight: 500; min-width: 130px; flex-shrink: 0; }
.cat li:hover .t::before { content:"› "; color: var(--fg-3); margin-left: -14px; }
.cat li .d { color: var(--fg-3); font-size: 12.5px; font-weight: 300; }

/* ---------- about ---------- */
.about-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 48px; align-items: start; }
.bio p { color: var(--fg-2); font-size: 15px; line-height: 1.8; font-weight: 300; margin-bottom: 16px; max-width: 60ch; text-wrap: pretty; }
.bio p b { color: var(--fg); font-weight: 500; }
.bio .sig { margin-top: 22px; color: var(--fg-3); font-size: 13px; }
.links { border: 1px solid var(--line); border-radius: 11px; background: var(--panel); overflow: hidden; }
.links .lh { padding: 12px 16px; border-bottom: 1px solid var(--line-soft); background: var(--panel-2); color: var(--fg-3); font-size: 12px; }
.links a.row { display: flex; align-items: center; gap: 12px; padding: 13px 16px; border-bottom: 1px solid var(--line-soft); transition: background 0.18s, padding 0.18s; }
.links a.row:last-child { border-bottom: none; }
.links a.row:hover { background: var(--panel-2); padding-left: 22px; }
.links a.row .lk { color: var(--fg-4); font-size: 12px; min-width: 96px; }
.links a.row .lv { color: var(--fg); font-size: 13px; }
.links a.row .ar { margin-left: auto; color: var(--fg-4); transition: transform 0.2s; }
.links a.row:hover .ar { transform: translate(2px,-2px); color: var(--fg-2); }

/* ---------- footer ---------- */
footer { max-width: var(--maxw); margin: 0 auto; padding: 40px 28px 60px; border-top: 1px solid var(--line); margin-top: 90px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 14px; }
footer .fl { color: var(--fg-3); font-size: 12.5px; }
footer .fl b { color: var(--fg-2); font-weight: 500; }
footer .fr { color: var(--fg-4); font-size: 12px; }

/* appear - transform-only entrance, content is ALWAYS opaque (safe under frozen timelines / reduced-motion) */
.appear { opacity: 1; transform: none; }
@media (prefers-reduced-motion: no-preference) {
  .appear { animation: rise 0.7s var(--ease) both; }
}
@keyframes rise { from { transform: translateY(16px); } to { transform: none; } }

/* ---------- responsive ---------- */
@media (max-width: 920px) {
  .hero { grid-template-columns: 1fr; gap: 36px; padding-top: 60px; min-height: 0; }
  .portrait { max-width: 320px; }
  .about-grid { grid-template-columns: 1fr; gap: 30px; }
  .bar-nav { display: none; }
}
@media (max-width: 560px) {
  main { padding: 0 18px 80px; }
  .stack-grid { grid-template-columns: 1fr; }
  .clock { display: none; }
  .meta-row .chip:nth-child(n+3) { display: none; }
}