:root {
  --background: #fff;
  --foreground: #0a0a0a;
  --border: #e5e5e5;
  --highlight-bg: #f5f5f5;
  --input: #e5e5e5;
  --primary: #171717;
  --neutral-400: #a1a1a1;
  --neutral-500: #737373;
  --neutral-600: #525252;
  --neutral-800: #262626;
  --lime: #C2F703;
  --font-sans: "Geist", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "Geist Mono", ui-monospace, SFMono-Regular, monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

[hidden] { display: none !important; }

html { -webkit-text-size-adjust: 100%; }

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--background);
  color: var(--foreground);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
}

main {
  position: relative;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  overflow-x: hidden;
  padding: 2rem 1rem;
}
@media (min-width: 640px) { main { padding: 4rem 1.5rem; } }
@media (min-width: 768px) { main { padding-top: 6rem; padding-bottom: 6rem; } }

.column { width: 100%; max-width: 520px; }

/* ASCII fluid background */
.ascii-fluid {
  pointer-events: none;
  overflow: hidden;
  position: fixed;
  inset: 0;
  z-index: -10;
  width: 100%;
  height: 100%;
}
.ascii-fluid canvas { position: absolute; inset: 0; width: 100%; height: 100%; }

/* Header */
.page-header {
  display: flex;
  min-height: 32px;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 2rem;
}
.site-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--foreground);
  cursor: pointer;
  user-select: none;
}
.mode-control {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--neutral-500);
  font-size: 14px;
}

.resume-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--neutral-500);
  font-size: 14px;
  text-decoration: none;
  transition: color .2s;
}
.resume-btn svg { width: 14px; height: 14px; }
.resume-btn:hover { color: var(--foreground); }

/* Switch (sm: 24 x 14, thumb 12) */
.switch {
  position: relative;
  display: inline-flex;
  flex-shrink: 0;
  align-items: center;
  width: 24px;
  height: 14px;
  border: 1px solid transparent;
  border-radius: 9999px;
  background: var(--input);
  cursor: pointer;
  transition: all .15s cubic-bezier(.4, 0, .2, 1);
  outline: none;
  padding: 0;
}
.switch::after { content: ""; position: absolute; inset: -8px -12px; }
.switch:focus-visible { box-shadow: 0 0 0 3px rgba(161,161,161,.5); }
.switch[aria-checked="true"] { background: var(--primary); }
.switch-thumb {
  pointer-events: none;
  display: block;
  width: 12px;
  height: 12px;
  border-radius: 9999px;
  background: var(--background);
  transform: translateX(0);
  transition: transform .15s cubic-bezier(.4, 0, .2, 1);
}
.switch[aria-checked="true"] .switch-thumb { transform: translateX(calc(100% - 2px)); }

/* Intro */
.intro { margin-bottom: 3.5rem; }
.intro > * + * { margin-top: 1.25rem; }
.intro p, .intro-last { font-size: 15px; line-height: 1.7; color: var(--foreground); }

.chip {
  display: inline-flex;
  align-items: center;
  background: var(--highlight-bg);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--foreground);
  text-decoration: none;
  transition: background-color .2s, color .2s;
}
.chip:hover { background: var(--lime); color: #000; }

.ulink {
  color: var(--foreground);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: #ccc;
  transition: text-decoration-color .2s;
}
.ulink:hover { text-decoration-color: var(--foreground); }

/* List sections */
.list-section { margin-bottom: 3.5rem; }
.list-section h2, .list-section-last h2 {
  font-size: 13px;
  color: var(--neutral-500);
  margin-bottom: 4px;
  font-weight: 400;
}
.row {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  border-top: 1px solid var(--border);
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  font-size: 15px;
}
.row .year { font-variant-numeric: tabular-nums; }
.row span { transition: transform .2s cubic-bezier(.25,.46,.45,.94), color .2s; }
.row:hover span:first-child { transform: translateX(4px); }
.row:hover .year { color: var(--neutral-500); }
.row-soon { cursor: default; }
.row-soon span:first-child { color: var(--neutral-500); }
.row-soon .year { font-size: 13px; color: var(--neutral-400); font-variant-numeric: normal; }
.row-soon:hover span:first-child { transform: none; }
.row-soon:hover .year { color: var(--neutral-400); }

/* Design Engineer gallery */
.gallery { display: flex; flex-direction: column; gap: 24px; }
.demo-card {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  border-radius: 16px;
  overflow: hidden;
  background: #e5e5e5;
  border: 1px solid rgba(229,229,229,.8);
  box-shadow: 0 1px 2px rgba(0,0,0,.05);
  cursor: pointer;
  transition: transform .3s;
}
.demo-card:hover { transform: scale(1.01); }
.demo-card iframe {
  width: 1280px;
  height: 800px;
  border: 0;
  pointer-events: none;
  transform-origin: top left;
  /* scaled in JS to fit card width */
}
.demo-pill {
  position: absolute;
  bottom: 16px;
  right: 16px;
  background: rgba(255,255,255,.9);
  backdrop-filter: blur(4px);
  color: var(--foreground);
  padding: 6px 14px;
  border-radius: 9999px;
  font-size: 13px;
  font-weight: 500;
  opacity: 0;
  transform: scale(.9) translateY(4px);
  transition: opacity .2s ease-out, transform .2s ease-out;
}
.demo-card:hover .demo-pill { opacity: 1; transform: scale(1) translateY(0); }

/* GitHub contributions */
.gh-section { margin-top: 3.5rem; }
.gh-section h2 {
  font-size: 13px;
  color: var(--neutral-500);
  margin-bottom: 4px;
  font-weight: 400;
}
.gh-card {
  background: #0a0a0a;
  border: 1px solid rgba(229,229,229,.8);
  border-radius: 1rem;
  padding: 16px;
  box-shadow: 0 1px 2px rgba(0,0,0,.05);
  margin-top: 8px;
}
.gh-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}
.gh-head span {
  color: #fafafa;
  font-size: 14px;
  font-weight: 500;
}
.gh-head a {
  color: #737373;
  font-size: 12px;
  text-decoration: none;
  transition: color .2s;
  white-space: nowrap;
}
.gh-head a:hover { color: #fafafa; }
.gh-head .gh-user { color: #737373; font-size: 12px; white-space: nowrap; }
.gh-graph-wrap { overflow-x: auto; }
.gh-months {
  display: flex;
  position: relative;
  height: 14px;
  font-size: 10px;
  color: #737373;
  font-family: var(--font-mono);
}
.gh-months span { position: absolute; top: 0; }
.gh-graph {
  display: grid;
  grid-auto-flow: column;
  grid-template-rows: repeat(7, 14px);
  grid-auto-columns: 14px;
  gap: 3px;
}
.gh-cell {
  width: 14px;
  height: 14px;
  border-radius: 3px;
  background: #161b22;
}
.gh-cell[data-level="1"] { background: #0e4429; }
.gh-cell[data-level="2"] { background: #006d32; }
.gh-cell[data-level="3"] { background: #26a641; }
.gh-cell[data-level="4"] { background: #39d353; }
.gh-cell:hover { outline: 1px solid rgba(255,255,255,.4); }
.gh-error { color: #737373; font-size: 13px; }

/* top-contributions bar */
.gh-repos { margin-top: 12px; }
.gh-repos-bar {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: #151515;
  border: 1px solid #232323;
  border-radius: 12px;
  padding: 8px 8px 8px 14px;
  color: #fafafa;
  font-size: 14px;
  font-family: var(--font-sans);
  cursor: pointer;
  text-align: left;
  transition: background-color .2s;
}
.gh-repos-bar:hover { background: #1a1a1a; }
.gh-repos-right { display: flex; align-items: center; gap: 10px; }
.gh-repo-avatars { display: flex; }
.gh-avatar {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 2px solid #151515;
  background: #fff;
  margin-left: -8px;
}
.gh-avatar:first-child { margin-left: 0; }
.gh-chevron {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid #333;
  color: #a1a1a1;
  flex-shrink: 0;
}
.gh-chevron svg { width: 14px; height: 14px; transition: transform .25s cubic-bezier(.25,.46,.45,.94); }
.gh-repos-bar[aria-expanded="true"] .gh-chevron svg { transform: rotate(180deg); }
.gh-repo-list { padding: 4px 6px 0; }
.gh-repo-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 8px;
  border-bottom: 1px solid #1c1c1c;
  text-decoration: none;
}
.gh-repo-row:last-child { border-bottom: 0; }
.gh-repo-row .name { color: #d4d4d4; font-size: 13px; transition: color .2s; }
.gh-repo-row:hover .name { color: #fff; }
.gh-repo-row .date { color: #737373; font-size: 12px; font-family: var(--font-mono); white-space: nowrap; }
.gh-tooltip {
  position: fixed;
  z-index: 50;
  pointer-events: none;
  background: #262626;
  color: #fafafa;
  font-size: 12px;
  padding: 4px 8px;
  border-radius: 6px;
  white-space: nowrap;
  transform: translate(-50%, calc(-100% - 8px));
  box-shadow: 0 2px 8px rgba(0,0,0,.35);
}

/* ASCII footer */
.ascii-footer {
  position: relative;
  margin-top: 4rem;
  height: 220px;
  width: 100%;
  overflow: hidden;
  border-radius: 1rem;
  border: 1px solid rgba(229,229,229,.8);
  background: #0a0a0a;
  box-shadow: 0 1px 2px rgba(0,0,0,.05);
}
@media (min-width: 640px) { .ascii-footer { margin-top: 5rem; height: 300px; } }
.ascii-text-container { position: relative; width: 100%; height: 100%; }
.ascii-text-container canvas {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  image-rendering: pixelated;
}

/* Entrance animations */
.anim { opacity: 0; }
.loaded .anim-header { animation: slideDown .5s cubic-bezier(.25,.46,.45,.94) forwards; }
.loaded .anim-name   { animation: slideRight .4s .1s cubic-bezier(.25,.46,.45,.94) forwards; }
.loaded .anim-intro  { animation: fadeIn .6s .1s forwards; }
.loaded .anim-section{ animation: fadeUp12 .4s .25s cubic-bezier(.25,.46,.45,.94) forwards; }
.loaded .anim-label  { animation: fadeIn .4s .35s forwards; }
.loaded .anim-row    { animation: fadeUp8 .4s cubic-bezier(.25,.46,.45,.94) forwards; }
.loaded .anim-row:nth-child(1) { animation-delay: .40s; }
.loaded .anim-row:nth-child(2) { animation-delay: .46s; }
.loaded .anim-row:nth-child(3) { animation-delay: .52s; }
.loaded .anim-row:nth-child(4) { animation-delay: .58s; }
.loaded .anim-row:nth-child(5) { animation-delay: .64s; }
.loaded .anim-row:nth-child(6) { animation-delay: .70s; }

/* View swap */
.view-enter { animation: fadeUp16 .4s cubic-bezier(.25,.46,.45,.94) forwards; }
.view-exit  { animation: fadeOutUp .25s ease-in forwards; }

@keyframes slideDown  { from { opacity: 0; transform: translateY(-10px); } to { opacity: 1; transform: none; } }
@keyframes slideRight { from { opacity: 0; transform: translateX(-8px); }  to { opacity: 1; transform: none; } }
@keyframes fadeIn     { from { opacity: 0; } to { opacity: 1; } }
@keyframes fadeUp8    { from { opacity: 0; transform: translateY(8px); }  to { opacity: 1; transform: none; } }
@keyframes fadeUp12   { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
@keyframes fadeUp16   { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }
@keyframes fadeOutUp  { from { opacity: 1; transform: none; } to { opacity: 0; transform: translateY(16px); } }

/* Project page */
.back-nav {
  display: flex;
  min-height: 32px;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 2rem;
  font-size: 14px;
}
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--foreground);
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  transition: color .2s;
}
.back-link:hover { color: var(--neutral-500); }
.back-link svg { width: 16px; height: 16px; transition: transform .2s; }
.back-link:hover svg { transform: translateX(-4px); }
.ext-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--neutral-500);
  text-decoration: none;
  font-size: 14px;
  transition: color .2s;
}
.ext-link:hover { color: var(--foreground); }
.ext-link svg { width: 14px; height: 14px; }

.project-header { margin-bottom: 3.5rem; }
.project-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--neutral-500);
  margin-bottom: 12px;
}
.project-meta .mono { font-family: var(--font-mono); }
.project-header h1 {
  font-size: 1.875rem;
  font-weight: 600;
  letter-spacing: -0.025em;
  margin-bottom: 12px;
}
@media (min-width: 640px) { .project-header h1 { font-size: 2.25rem; } }
.project-sub {
  font-size: 1.125rem;
  color: var(--neutral-600);
  line-height: 1.375;
  margin-bottom: 20px;
}
@media (min-width: 640px) { .project-sub { font-size: 1.25rem; } }
.overview-card {
  padding: 16px;
  background: rgba(250,250,250,.8);
  border: 1px solid rgba(229,229,229,.8);
  backdrop-filter: blur(4px);
}
@media (min-width: 640px) { .overview-card { padding: 20px; } }
.overview-card h2 {
  font-size: 12px;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--neutral-500);
  font-weight: 500;
  margin-bottom: 8px;
}
.overview-card p { font-size: 15px; line-height: 1.7; color: var(--neutral-800); }

.screens { display: flex; flex-direction: column; gap: 3rem; }
@media (min-width: 640px) { .screens { gap: 4rem; } }
.screens-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  padding-bottom: 12px;
}
.screens-head h2 {
  font-size: 13px;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--neutral-500);
  font-weight: 500;
}
.screens-head span { font-size: 12px; color: var(--neutral-400); }

.screen { display: flex; flex-direction: column; gap: 12px; }
.screen-title { display: flex; align-items: center; gap: 10px; padding: 0 2px; }
.screen-title .num { font-size: 12px; font-family: var(--font-mono); color: var(--neutral-400); }
.screen-title h3 { font-size: 15px; font-weight: 500; }
.screen-frame {
  position: relative;
  width: 100%;
  overflow: hidden;
  background: #fff;
  border: 1px solid rgba(229,229,229,.9);
  box-shadow: 0 1px 2px rgba(0,0,0,.05);
  cursor: zoom-in;
  transition: border-color .3s, box-shadow .3s;
}
.screen:hover .screen-frame { border-color: var(--neutral-400); box-shadow: 0 1px 3px rgba(0,0,0,.1); }
.screen-frame img { width: 100%; height: auto; display: block; transition: transform .3s; }
.screen:hover .screen-frame img { transform: scale(1.005); }
.screen-frame .placeholder {
  aspect-ratio: 16 / 10;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--neutral-400);
  font-size: 13px;
  font-family: var(--font-mono);
  background: repeating-linear-gradient(45deg, #fafafa 0 12px, #f5f5f5 12px 24px);
}
.screen-frame iframe {
  width: 1280px;
  height: 800px;
  border: 0;
  pointer-events: none;
  transform-origin: top left;
}