:root {
  --ink: #111;
  --ink-soft: #888;
  --ink-mute: #cfcfcf;
  --paper: #fff;
  --gap: clamp(24px, 3.5vw, 48px);
  --serif: "Source Han Serif",
        "Noto Serif",
        "Noto Serif SC",
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        Roboto,
        Oxygen,
        Ubuntu,
        Cantarell,
        "Open Sans",
        "Helvetica Neue",
        sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; background: var(--paper); color: var(--ink); }
body {
  font-family: var(--serif);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }

/* favicon */
.icon { fill: #1a1a1a; }
@media (prefers-color-scheme: dark) {
  .icon { fill: #f0f0f0; }
}

/* layout */
.home {
  display: grid;
  grid-template-columns: 1fr 500px 56px;
  grid-template-rows: 1fr auto;
  column-gap: var(--gap);
  row-gap: 24px;
  height: 100vh;
  padding: var(--gap);
}

.home .masthead {
  grid-column: 3;
  grid-row: 1;
}
.home .footnav {
  grid-column: 2 / span 2;
  grid-row: 2;
}

/* left: cover */
.cover { grid-column: 1; grid-row: 1 / span 2; position: relative; overflow: hidden; }
.cover__stage {
  position: relative;
  width: 100%;
  height: 100%;
  background: #ededed;
}
.cover__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 700ms ease;
  pointer-events: none;
}
.cover__img.is-active { opacity: 1; }

/* middle: project list */
.projects {
  grid-column: 2;
  grid-row: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 0;
}
.projects__viewport {
  position: relative;
  width: 100%;
  height: clamp(360px, 60vh, 560px);                
  overflow-y: auto;
  scrollbar-width: none;
  mask-image: linear-gradient(180deg, transparent 0, #000 18%, #000 82%, transparent 100%);
  -webkit-mask-image: linear-gradient(180deg, transparent 0, #000 18%, #000 82%, transparent 100%);
}
.projects__viewport::-webkit-scrollbar { display: none; }

.projects__list {
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding: 220px 0;               /* lets first/last items reach center */
}

.project {
  display: flex;
  align-items: baseline;
  justify-content: flex-start;
  gap: 14px;
  padding: 4px 0;
  font-size: 18px;
  color: var(--ink-mute);
  cursor: pointer;
  transition: color 220ms ease;
}
.project__name { 
  letter-spacing: 0.01em;
  font-size: 1.2em; 
}
.project__dot  { color: var(--ink-mute); }
.project__year { font-size: 18px; letter-spacing: 0.06em; color: inherit; }
.project.is-active,
.project:hover { color: var(--ink); }

/* content */
blockquote {
  position: relative;
  margin: 28px 0;
  padding: 8px 0 8px 36px;
  font-size: 0.9em;
  line-height: 1.6;
  letter-spacing: 0.01em;
  color: inherit;
}
blockquote::before {
  content: "\201C"; /* 左双引号 */
  position: absolute;
  left: 0;
  top: -6px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 48px;
  line-height: 1;
  color: var(--ink-mute);
}
blockquote p {
  margin: 0 0 8px 0;
}
blockquote p:last-child {
  margin-bottom: 0;
}

/* right: masthead */
/* === GLOBAL: MASTHEAD === */
.masthead {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 14px;
}
.masthead__logo {
  font-family: math;
  display: flex;
  flex-direction: column;
  font-size: 48px;
  letter-spacing: 0.02em;
  line-height: 1.05;
}
.masthead__role {
  writing-mode: vertical-rl;
  font-size: 24px;
  letter-spacing: 0.22em;
  margin-top: 8px;
}

/* === GLOBAL: FOOTER NAV === */
.footnav {
  display: flex;
  justify-content: flex-end;
  gap: 28px;
  font-size: 18px;
  letter-spacing: 0.04em;
}
.footnav a {
  color: var(--ink);
  transition: color 200ms ease;
}
.footnav a:hover { color: var(--ink-soft); }
.footnav .is-current {
  color: var(--ink-mute);
  pointer-events: none;
}