:root {
  --bg: #f4f6f4;
  --surface: #ffffff;
  --ink: #15201c;
  --muted: #5d6a65;
  --line: #dfe5e1;
  --accent: #1d7560;
  --accent-soft: #e2f0eb;
  --grid: rgba(21, 32, 28, .045);
  --sans: 'Noto Sans TC', 'PingFang TC', 'Microsoft JhengHei', system-ui, sans-serif;
  --serif: 'Noto Serif TC', 'Songti TC', 'PMingLiU', serif;
  --width: 68rem;
  --pad: clamp(1.25rem, 4vw, 2.5rem);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1311;
    --surface: #141c19;
    --ink: #e6ede9;
    --muted: #93a39c;
    --line: #24312c;
    --accent: #5cc4a3;
    --accent-soft: #17302a;
    --grid: rgba(230, 237, 233, .035);
  }
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 5rem; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background:
    linear-gradient(var(--grid) 1px, transparent 1px) 0 0 / 2.5rem 2.5rem,
    linear-gradient(90deg, var(--grid) 1px, transparent 1px) 0 0 / 2.5rem 2.5rem,
    var(--bg);
  color: var(--ink);
  font: 400 1rem/1.85 var(--sans);
}

h1, h2, h3, p, ol, ul { margin: 0; padding: 0; }
ol, ul { list-style: none; }

a { color: inherit; text-underline-offset: .25em; text-decoration-thickness: 1px; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

/* Navigation */

.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: var(--width);
  margin: 0 auto;
  padding: .9rem var(--pad);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.nav-name { font-family: var(--serif); font-weight: 700; text-decoration: none; }

.nav ul { display: flex; gap: clamp(.9rem, 3vw, 2rem); font-size: .9375rem; }

.nav ul a { color: var(--muted); text-decoration: none; }
.nav ul a:hover { color: var(--ink); }

/* Hero */

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  align-items: center;
  gap: clamp(2rem, 6vw, 5rem);
  max-width: var(--width);
  margin: 0 auto;
  padding: clamp(2rem, 8vh, 5rem) var(--pad) clamp(3rem, 8vh, 5rem);
}

.name {
  font: 900 clamp(3.75rem, 11vw, 7.5rem)/1.05 var(--serif);
  letter-spacing: .06em;
}


.typed {
  display: flex;
  align-items: baseline;
  gap: .6rem;
  min-height: 1.6em;
  margin-top: 1.5rem;
  font-size: clamp(1.15rem, 2.4vw, 1.5rem);
  font-weight: 500;
}

.sigil { color: var(--accent); font-family: var(--serif); font-weight: 700; }

.caret {
  display: inline-block;
  align-self: center;
  width: 2px;
  height: 1.15em;
  margin-left: 2px;
  background: var(--accent);
  animation: blink 1.1s steps(1) infinite;
}

@keyframes blink { 50% { opacity: 0; } }

.hero-lead { max-width: 34em; margin-top: 1.25rem; color: var(--muted); }

.hero-actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 2rem; }

.button {
  display: inline-block;
  padding: .6rem 1.25rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  font-weight: 500;
  text-decoration: none;
}

.button:hover { border-color: var(--accent); }

.button-solid { border-color: var(--accent); background: var(--accent); color: var(--bg); }

.portrait {
  justify-self: center;
  width: min(100%, 20rem);
  height: auto;
  border-radius: 50%;
  outline: 1px solid var(--line);
  outline-offset: 10px;
}

/* Bento overview */

.bento {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
  max-width: var(--width);
  margin: 0 auto;
  padding: 0 var(--pad);
}

.card {
  display: flex;
  flex-direction: column;
  gap: .5rem;
  padding: 1.5rem;
  border: 1px solid var(--line);
  border-radius: 1.25rem;
  background: var(--surface);
}

.card-label {
  display: flex;
  align-items: center;
  gap: .5rem;
  color: var(--muted);
  font-size: .875rem;
}

.card-note { color: var(--muted); font-size: .875rem; line-height: 1.6; }

.card-event { grid-column: span 2; grid-row: span 2; justify-content: space-between; }

.pulse {
  width: .55rem;
  height: .55rem;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 var(--accent);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  70% { box-shadow: 0 0 0 .5rem transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}

.event-headline { font: 900 clamp(2.5rem, 6vw, 4rem)/1.1 var(--serif); color: var(--accent); }

.event-name { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .25rem 1rem; font-weight: 700; }

.event-when { color: var(--muted); font-weight: 400; }

.event-title { color: var(--muted); line-height: 1.7; }

.stat { display: flex; align-items: baseline; gap: .35rem; }

.stat-value { font: 900 3rem/1 var(--serif); }

.stat-unit { color: var(--muted); }

.card-topics { grid-column: span 2; }

.chips { display: flex; flex-wrap: wrap; gap: .5rem; }

.chips li {
  padding: .2rem .8rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: .875rem;
  font-weight: 500;
}

.copy {
  margin-left: .5rem;
  padding: .1rem .8rem;
  vertical-align: middle;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: none;
  color: var(--ink);
  font: inherit;
  font-size: .875rem;
  cursor: pointer;
}

.copy:hover { border-color: var(--accent); }

/* Content blocks */

.block {
  max-width: var(--width);
  margin: 0 auto;
  padding: clamp(4rem, 10vh, 6rem) var(--pad) 0;
}

.block h2, .contact h2 {
  font: 700 clamp(1.6rem, 3vw, 2rem)/1.4 var(--serif);
}

.block-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.prose { max-width: 42rem; margin-top: 1.5rem; }
.prose p + p { margin-top: 1rem; }

.filters { display: flex; flex-wrap: wrap; gap: .5rem; }

.filters button {
  padding: .3rem .9rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--muted);
  font: inherit;
  font-size: .875rem;
  cursor: pointer;
}

.filters button span { margin-left: .2rem; opacity: .7; }

.filters button[aria-pressed="true"] { border-color: var(--accent); background: var(--accent); color: var(--bg); }

.works { margin-top: 1.5rem; border-top: 1px solid var(--line); }

.works li {
  display: grid;
  grid-template-columns: 6.5rem minmax(0, 1fr);
  gap: 1rem;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--line);
}

.works li[hidden] { display: none; }

.kind { font-size: .8125rem; color: var(--muted); padding-top: .2rem; }
.kind-talk { color: var(--accent); }

.work-title { font-weight: 500; line-height: 1.7; }

.work-meta { margin-top: .2rem; color: var(--muted); font-size: .9375rem; line-height: 1.7; }

.path {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2rem clamp(2rem, 6vw, 5rem);
  margin-top: 1.5rem;
}

.path h3 { color: var(--muted); font-size: .9375rem; font-weight: 500; }

.timeline { margin-top: 1rem; border-left: 2px solid var(--line); }

.timeline li { position: relative; padding: 0 0 1.4rem 1.4rem; }

.timeline li::before {
  position: absolute;
  top: .55rem;
  left: -.4rem;
  width: .7rem;
  height: .7rem;
  border: 2px solid var(--accent);
  border-radius: 50%;
  background: var(--bg);
  content: '';
}

.timeline li:first-child::before { background: var(--accent); }

.timeline .when { display: block; color: var(--muted); font-size: .875rem; }

.timeline .what { font-weight: 500; }

/* Contact */

.contact {
  max-width: var(--width);
  margin: clamp(4rem, 10vh, 6rem) auto 0;
  padding: 0 var(--pad) 4rem;
}

.contact ul { display: flex; flex-wrap: wrap; gap: .5rem 2rem; margin-top: 1rem; font-size: 1.125rem; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .caret, .pulse { animation: none; }
}

@media (max-width: 60rem) {
  .bento { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 44rem) {
  .nav ul { display: none; }

  .hero { grid-template-columns: minmax(0, 1fr); min-height: 0; padding-top: 1rem; }

  .portrait { grid-row: 1; justify-self: start; width: 7rem; outline-offset: 6px; }

  .typed { font-size: 1rem; gap: .4rem; }

  .bento { grid-template-columns: minmax(0, 1fr); }

  .card-event, .card-topics { grid-column: auto; grid-row: auto; }

  .works li { grid-template-columns: minmax(0, 1fr); gap: .1rem; }

  .path { grid-template-columns: minmax(0, 1fr); }
}