:root {
  --bg: #FBF6EC;
  --bg-2: #F2EAD8;
  --ink: #1A1410;
  --ink-2: #3D332B;
  --muted: #8A7E70;
  --line: #E5DAC4;
  --accent: #DA251D;
  --accent-2: #F4D06F;
  --vn-blue: #2D6FB3;
  --pad-y: 7rem;
  --pad-x: clamp(1.25rem, 4vw, 5rem);
  --maxw: 1280px;
}

html[data-density="tight"] { --pad-y: 4.5rem; }
html[data-density="airy"]  { --pad-y: 10rem; }

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--ink); }
body {
  font-family: "Geist", ui-sans-serif, system-ui, sans-serif;
  font-feature-settings: "ss01", "cv11";
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
.mono {
  font-family: "JetBrains Mono", ui-monospace, "SF Mono", monospace;
  font-size: 0.78em;
  letter-spacing: 0.02em;
  color: var(--muted);
  text-transform: lowercase;
}

/* NAV */
.nav {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; gap: 2rem;
  padding: 1rem var(--pad-x);
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}
.nav-brand { color: var(--ink); text-decoration: none; }
.nav ul { list-style: none; display: flex; gap: 1.6rem; padding: 0; margin: 0 auto 0 1rem; }
.nav ul a { text-decoration: none; font-size: 0.92rem; color: var(--ink-2); transition: color .15s; }
.nav ul a:hover { color: var(--ink); }
.nav-cta {
  display: inline-flex; align-items: center; gap: 0.5rem;
  text-decoration: none; font-size: 0.85rem; color: var(--ink);
  padding: 0.5rem 0.9rem; border: 1px solid var(--line); border-radius: 999px;
  background: var(--bg);
}
.nav-cta .ind {
  width: 8px; height: 8px; border-radius: 50%;
  box-shadow: 0 0 0 4px color-mix(in oklch, var(--accent) 25%, transparent);
}

/* HERO */
.hero {
  padding: 3rem var(--pad-x) 4rem;
  border-bottom: 1px solid var(--line);
}
.hero-grid {
  max-width: var(--maxw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 2.6fr 1fr;
  gap: 2.5rem;
  align-items: center;
}
.hero-meta {
  align-self: stretch;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  padding: 0.5rem 0;
}
.name-tag {
  display: inline-block;
  margin-bottom: 0.9rem;
  font-size: 0.85rem;
  color: var(--muted);
}
.hero-star-big {
  align-self: center;
  width: clamp(72px, 10vw, 140px);
  height: clamp(72px, 10vw, 140px);
  transform: rotate(-12deg);
  filter: drop-shadow(0 3px 0 rgba(218, 37, 29, 0.55));
  display: block;
}
.hero-name h1 {
  font-size: clamp(2.5rem, 7vw, 6.5rem);
  line-height: 0.95;
  letter-spacing: -0.04em;
  margin: 0 0 1.2rem;
  font-weight: 600;
  white-space: nowrap;
}
.hero-side {
  display: flex; flex-direction: column; gap: 0.55rem;
  font-size: 0.92rem;
  border-left: 1px solid var(--line);
  padding-left: 1.5rem;
  align-self: stretch;
  justify-content: center;
}
.hero-name { position: relative; }
.hero-name h1 .hero-star {
  display: inline-block;
  width: 0.42em;
  height: 0.42em;
  vertical-align: 0.22em;
  margin-right: 0.18em;
  transform: rotate(-8deg);
  filter: drop-shadow(0 1px 0 rgba(218, 37, 29, 0.5));
}
.hero-name h1 .hero-star polygon { fill: #F4D06F; }
.hero-name h1 .dot {
  display: inline-block;
  width: 0.18em; height: 0.18em;
  border-radius: 50%;
  margin-left: 0.05em;
  vertical-align: baseline;
  background: var(--accent);
  transition: background .25s;
}
.hero-sub {
  font-size: clamp(1.05rem, 1.4vw, 1.25rem);
  max-width: 38ch;
  color: var(--ink-2);
  margin: 0;
}
.hero-side .kv { display: grid; grid-template-columns: 3.5rem 1fr; gap: 0.5rem; align-items: baseline; }
.hero-side a { text-decoration: none; border-bottom: 1px solid var(--line); }
.hero-side a:hover { border-color: var(--ink); }

.hero-strip {
  max-width: var(--maxw);
  margin: 4rem auto 0;
  display: flex; flex-wrap: wrap; gap: 2.5rem;
  padding-top: 2rem; border-top: 1px solid var(--line);
  font-size: 0.95rem; color: var(--ink-2);
  position: relative;
}
.hero-strip::before {
  content: "";
  position: absolute;
  left: 0; top: -1px;
  width: 6rem; height: 3px;
  background: var(--accent);
}
.hero-strip b { color: var(--ink); font-weight: 600; margin-right: 0.4rem; }

/* BLOCK */
.block { padding: var(--pad-y) var(--pad-x); border-bottom: 1px solid var(--line); }
.block-head { max-width: var(--maxw); margin: 0 auto 3rem; display: flex; flex-direction: column; gap: 0.75rem; }
.block-head h2 {
  font-size: clamp(2rem, 4.4vw, 3.6rem);
  line-height: 1.02;
  letter-spacing: -0.025em;
  margin: 0;
  max-width: 22ch;
  font-weight: 500;
  text-wrap: balance;
}
.block-sub { max-width: 50ch; color: var(--ink-2); margin: 0.5rem 0 0; font-size: 1.05rem; }

/* ABOUT */
.about-grid { max-width: var(--maxw); margin: 0 auto; display: grid; gap: 3rem; }
.lede { font-size: clamp(1.15rem, 1.8vw, 1.6rem); line-height: 1.4; max-width: 52ch; color: var(--ink); margin: 0; text-wrap: pretty; }

.about-cols { display: grid; grid-template-columns: 1fr 1fr 1.4fr; gap: 2.5rem; padding-top: 2rem; border-top: 1px solid var(--line); }
.about-cols p { margin: 0.4rem 0 0; color: var(--ink-2); font-size: 0.97rem; }

.off-hours { grid-column: span 1; }
.off-list {
  list-style: none;
  margin: 0.7rem 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}
.off-list li {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 0.8rem;
  align-items: center;
  color: var(--ink-2);
  font-size: 0.97rem;
  line-height: 1.5;
}
.off-ic {
  width: 36px; height: 36px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  flex-shrink: 0;
}

/* NOW / AI */
.now { background: var(--bg-2); }
.now-wrap {
  max-width: var(--maxw); margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(260px, 1fr) 2fr;
  grid-template-areas: "tabs panel" "tabs side";
  gap: 1.5rem 3rem;
}
.now-tabs { grid-area: tabs; list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 0.4rem; }
.now-tabs button {
  width: 100%;
  display: grid; grid-template-columns: 2.4rem 1fr 0.6rem;
  gap: 0.8rem; align-items: center;
  padding: 1rem 1rem; text-align: left;
  background: transparent; color: var(--ink-2);
  border: 1px solid transparent;
  border-radius: 6px;
  cursor: pointer;
  font: inherit; font-size: 1.05rem;
  transition: background .15s, color .15s, border-color .15s;
}
.now-tabs button:hover { background: color-mix(in oklch, var(--bg) 60%, transparent); color: var(--ink); }
.now-tabs button.on { background: var(--bg); border-color: var(--accent); color: var(--ink); }
.now-tabs button i { width: 0.6rem; height: 0.6rem; border-radius: 50%; transition: background .2s; background: transparent; }
.now-tabs button.on i { background: var(--accent); }
.now-panels { grid-area: panel; }
.now-panel {
  display: none;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 2.2rem;
  font-size: clamp(1.1rem, 1.4vw, 1.3rem);
  line-height: 1.5;
  text-wrap: pretty;
}
.now-panel.on { display: block; }
.now-panel p { margin: 0 0 1.3rem; }
.now-side { grid-area: side; padding: 0.5rem 0; }
.now-side ul { margin: 0.7rem 0 0; padding-left: 1.1rem; color: var(--ink-2); font-size: 0.97rem; }
.now-side li { margin-bottom: 0.5rem; }

.chips { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.chip {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.72rem;
  padding: 0.3rem 0.55rem;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--bg);
  color: var(--ink-2);
}

/* STACK */
.stack-tabs { max-width: var(--maxw); margin: 0 auto 2rem; display: flex; flex-wrap: wrap; gap: 0.5rem; }
.stack-tabs button {
  font: inherit; font-size: 0.9rem;
  padding: 0.55rem 1rem;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-2);
  cursor: pointer;
  transition: all .15s;
}
.stack-tabs button:hover { color: var(--ink); }
.stack-tabs button.on { background: var(--ink); color: var(--bg); border-color: var(--ink); }

.stack-list { max-width: var(--maxw); margin: 0 auto; display: grid; gap: 0.4rem; }
.stack-group { display: none; gap: 0.4rem; grid-template-columns: 1fr; }
.stack-group.on { display: grid; }
.stack-row {
  display: grid; grid-template-columns: 1fr auto auto; gap: 1rem;
  align-items: baseline;
  padding: 0.85rem 0;
  border-bottom: 1px dashed var(--line);
}
.stack-row .k { font-size: 1.15rem; font-weight: 500; }
.stack-row .v { color: var(--muted); }
.stack-row .dotline { display: none; }

.lang-row { max-width: var(--maxw); margin: 3rem auto 0; padding-top: 2rem; border-top: 1px solid var(--line); display: flex; gap: 2rem; align-items: baseline; flex-wrap: wrap; }
.lang-row > div { display: flex; gap: 1.6rem; flex-wrap: wrap; }
.lang-row b { font-weight: 600; margin-right: 0.4rem; }

/* EXPERIENCE */
.xp-list { max-width: var(--maxw); margin: 0 auto; padding: 0; list-style: none; }
.xp-list li {
  border-top: 1px solid var(--line);
  cursor: pointer;
  transition: background .15s;
}
.xp-list li:last-child { border-bottom: 1px solid var(--line); }
.xp-list li:hover { background: var(--bg-2); }
.xp-row {
  display: grid; grid-template-columns: 10rem 1fr 2rem;
  gap: 2rem; align-items: baseline;
  padding: 1.6rem 0.5rem;
}
.xp-range { white-space: nowrap; }
.xp-main h3 { margin: 0 0 0.2rem; font-size: 1.4rem; font-weight: 500; letter-spacing: -0.01em; }
.xp-org { margin: 0; color: var(--muted); font-size: 0.95rem; }
.xp-toggle { font-size: 1.4rem; color: var(--muted); text-align: right; font-weight: 300; }
.xp-body { display: none; padding: 0 0.5rem 1.8rem 12rem; max-width: 70ch; }
.xp-list li.on .xp-body { display: block; }
.xp-list li.on .xp-toggle::before { content: "—"; }
.xp-list li:not(.on) .xp-toggle::before { content: "+"; }
.xp-toggle { font-size: 1.4rem; color: var(--muted); text-align: right; font-weight: 300; }
.xp-body p { margin: 0 0 1rem; color: var(--ink-2); }
.xp-bullets { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.xp-bullets span {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.78rem;
  padding: 0.4rem 0.7rem;
  background: var(--ink);
  color: var(--bg);
  border-radius: 4px;
}

/* PROJECTS */
.proj-grid {
  max-width: var(--maxw); margin: 0 auto;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem;
}
.proj-card { display: flex; flex-direction: column; gap: 1rem; }
.proj-card.big { grid-column: span 3; display: grid; grid-template-columns: 1.4fr 1fr; gap: 2.5rem; align-items: stretch; }
.proj-card.big .proj-thumb { grid-row: span 4; aspect-ratio: 16 / 10; }
.proj-thumb {
  aspect-ratio: 4 / 3;
  background:
    repeating-linear-gradient(135deg,
      var(--bg-2) 0 14px,
      color-mix(in oklch, var(--bg-2) 70%, var(--ink) 4%) 14px 28px);
  border: 1px solid var(--line);
  border-radius: 6px;
  display: flex; align-items: flex-end;
  padding: 1rem;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.78rem;
  color: var(--muted);
  text-transform: lowercase;
}
.proj-thumb span::before { content: "// "; }

.proj-thumb.grid {
  background: var(--bg-2);
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: repeat(3, 1fr);
  gap: 4px;
  padding: 10px;
  align-items: stretch;
}
.proj-thumb.grid .mini {
  background:
    linear-gradient(135deg,
      color-mix(in oklch, var(--accent) 18%, var(--bg)) 0%,
      var(--bg) 60%);
  border: 1px solid var(--line);
  border-radius: 3px;
  position: relative;
  overflow: hidden;
}
.proj-thumb.grid .mini::before {
  content: "";
  position: absolute;
  left: 18%; right: 18%;
  top: 22%; height: 3px;
  background: var(--ink);
  opacity: 0.45;
  border-radius: 1px;
}
.proj-thumb.grid .mini::after {
  content: "";
  position: absolute;
  left: 18%; right: 36%;
  bottom: 24%; height: 2px;
  background: var(--muted);
  opacity: 0.6;
  border-radius: 1px;
}
.proj-thumb.grid .mini:nth-child(3n+1) {
  background: linear-gradient(135deg, color-mix(in oklch, var(--accent-2) 30%, var(--bg)) 0%, var(--bg) 60%);
}
.proj-thumb.grid .mini:nth-child(4n+2) {
  background: linear-gradient(135deg, color-mix(in oklch, var(--vn-blue) 22%, var(--bg)) 0%, var(--bg) 60%);
}
.proj-thumb.grid .mini:nth-child(5n+3) {
  background: linear-gradient(135deg, var(--bg-2) 0%, var(--bg) 60%);
}
.proj-thumb.grid .grid-label {
  position: absolute;
  left: 1rem; bottom: 1rem;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.78rem;
  color: var(--muted);
  text-transform: lowercase;
  background: color-mix(in oklch, var(--bg) 80%, transparent);
  padding: 0.2rem 0.5rem;
  border-radius: 3px;
}
.proj-thumb.grid .grid-label::before { content: "// "; }
.proj-card h3 { margin: 0; font-size: 1.3rem; font-weight: 500; letter-spacing: -0.01em; }
.proj-card.big h3 { font-size: 1.8rem; }
.proj-card p { margin: 0; color: var(--ink-2); font-size: 0.98rem; line-height: 1.55; text-wrap: pretty; }

/* CONTACT */
.contact { background: var(--ink); color: var(--bg); border: none; }
.contact .mono { color: color-mix(in oklch, var(--bg) 60%, transparent); }
.contact-inner { max-width: var(--maxw); margin: 0 auto; }
.contact-inner h2 {
  font-size: clamp(2.2rem, 5vw, 4.4rem);
  line-height: 1.0;
  letter-spacing: -0.03em;
  margin: 0.7rem 0 2.5rem;
  font-weight: 500;
  max-width: 22ch;
  text-wrap: balance;
}
.contact-cta { display: flex; flex-wrap: wrap; gap: 1rem; }
.btn {
  font: inherit;
  font-size: 1rem;
  padding: 1rem 1.5rem;
  border-radius: 999px;
  text-decoration: none;
  display: inline-block;
  transition: transform .15s;
}
.btn:hover { transform: translateY(-2px); }
.btn.primary { color: var(--ink); font-weight: 500; background: var(--accent); }
.btn.ghost { color: var(--bg); border: 1px solid color-mix(in oklch, var(--bg) 40%, transparent); }
.fineprint { margin-top: 2rem; }

/* FOOTER */
.foot {
  display: flex; justify-content: space-between; padding: 2rem var(--pad-x);
  border-top: 1px solid var(--line);
  font-size: 0.85rem;
}

/* RESPONSIVE */
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; gap: 2rem; }
  .hero-side { border-left: none; padding-left: 0; border-top: 1px solid var(--line); padding-top: 1.5rem; }
  .nav ul { display: none; }
  .now-wrap { grid-template-columns: 1fr; grid-template-areas: "tabs" "panel" "side"; }
  .about-cols { grid-template-columns: 1fr; gap: 1.5rem; }
  .xp-row { grid-template-columns: 1fr 2rem; }
  .xp-range { grid-column: 1 / -1; }
  .xp-list li.on .xp-body { padding-left: 0.5rem; }
  .proj-grid { grid-template-columns: 1fr; }
  .proj-card.big { grid-template-columns: 1fr; }
}