/* ─────────────────────────────────────────────
   YM Wang — a personal page, read like a letter
   warm paper · ink · quiet terracotta links
   ───────────────────────────────────────────── */

@font-face {
  font-family: "Anthropic Serif";
  src: url("fonts/AnthropicSerif-Roman-Web.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Noto Serif SC";
  src: url("fonts/NotoSerifSC-400.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Noto Serif SC";
  src: url("fonts/NotoSerifSC-600.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

:root {
  --paper:  #F6F3EC;
  --ink:    #26221B;
  --ink-2:  #6E6759;
  --accent: #B5502A;
  --line:   rgba(38, 34, 27, .16);
  --serif:  "Anthropic Serif", "Charter", "Bitstream Charter", "Sitka Text",
            Cambria, "Noto Serif SC", "Songti SC", "STSong", "SimSun",
            Georgia, serif;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 16.5px;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: var(--accent); color: var(--paper); }
img::selection { background: transparent; }

a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .25s ease;
}
a:hover { border-bottom-color: var(--accent); }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

/* ── single reading column ────────────────── */
main {
  max-width: 37rem;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ── hero ─────────────────────────────────── */
.hero { padding-top: 6rem; }

.avatar {
  width: 5.25rem; height: 5.25rem;
  object-fit: cover;
  border-radius: 50%;
  border: 1px solid var(--line);
}

h1 {
  margin-top: 1.6rem;
  font-size: 2.5rem;
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: .01em;
}

.cn {
  margin-top: .2rem;
  font-size: 1.05rem;
  color: var(--ink-2);
}

.intro { margin-top: 1.8rem; }

.contact {
  margin-top: 1.4rem;
  font-size: .95rem;
  color: var(--ink-2);
}

/* ── sections ─────────────────────────────── */
section { margin-top: 4rem; }

h2 {
  font-size: 1.02rem;
  font-weight: 500;
  letter-spacing: .04em;
  color: var(--ink-2);
  padding-bottom: .55rem;
  border-bottom: 1px solid var(--line);
}

.entry { margin-top: 1.4rem; }
.entry strong { font-weight: 600; }

/* ── footer ───────────────────────────────── */
footer {
  margin-top: 5rem;
  padding: 1.4rem 0 3rem;
  border-top: 1px solid var(--line);
  font-size: .88rem;
  color: var(--ink-2);
}

/* ── small screens ────────────────────────── */
@media (max-width: 40rem) {
  body { font-size: 16px; }
  .hero { padding-top: 4rem; }
  h1 { font-size: 2.1rem; }
  section { margin-top: 3.25rem; }
}

/* ── print ────────────────────────────────── */
@media print {
  body { background: #fff; font-size: 11pt; }
  a { color: inherit; }
}