/* Hanshu Yu — personal site
   Shared stylesheet. Lightweight, single file, no build step.
   Keeps the signature yellow + Gill Sans look, sets long-form text
   on a calm cream "sheet" for comfortable reading. */

:root {
  --yellow: rgb(233, 218, 82);   /* signature page colour */
  --sheet:  #faefbe;             /* soft yellow-tinted reading surface */
  --ink:    #424242;             /* medium-dark grey */
  --muted:  #6a6444;             /* bylines, dates, captions */
  --rule:   #d8c95a;             /* hairlines / borders */
  --link:   #6b5b00;             /* links, derived from the yellow */
}

html {
  background-color: var(--yellow);
}

body {
  margin: 0;
  padding: 2rem 1rem;
  color: var(--ink);
  font-size: 20px;
  line-height: 1.65;
  font-family: 'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif;
}

/* The reading column: cream paper floating on the yellow desk. */
.sheet {
  max-width: 46rem;            /* ~735px → comfortable line length */
  margin: 0 auto;
  padding: 2.5rem 3rem;
  background: var(--sheet);
  border-radius: 5px;
  box-shadow: 0 2px 18px rgba(0, 0, 0, 0.12);
}

/* Headings */
h1, h2, h3, h4 {
  line-height: 1.25;
  font-weight: 600;
}
h1 { font-size: 1.9em; }
h2 { font-size: 1.45em; margin-top: 1.8rem; }
h3 { font-size: 1.2em; }

/* Links */
a { color: var(--link); }
a:hover { text-decoration: none; }

/* Paragraphs read left-aligned by default. */
p { margin: 0.9rem 0; }

em { color: inherit; }

/* Horizontal rules */
hr {
  border: 0;
  border-top: 1px solid var(--rule);
  margin: 1.6rem 0;
}

blockquote {
  margin: 1.6rem 0;
  padding: 0.6rem 1.3rem;
  border-left: 3px solid var(--rule);
  font-style: italic;
}

img {
  max-width: 100%;
  height: auto;
}

/* Top-of-page navigation links on sub-pages. */
.nav {
  font-size: 0.9em;
  margin-bottom: 1.6rem;
}
.nav a { margin-right: 1.2rem; }

/* Centred elements where centring genuinely helps (titles, verse). */
.center { text-align: center; }

/* Verse / poetry: centred, tighter leading, preserved line breaks. */
.verse {
  text-align: center;
  line-height: 1.5;
}
.verse p { margin: 0.2rem 0; }

/* Download callout for the tool pages (replaces the dashed lines). */
.download {
  margin: 1.6rem 0;
  padding: 1rem 1.3rem;
  text-align: center;
  background: rgba(0, 0, 0, 0.03);
  border: 1px solid var(--rule);
  border-radius: 5px;
}
.download a { font-weight: 600; }

/* ---- Essay typography (The Number in the Annex) ---- */
.title  { text-align: center; margin-bottom: 0.2rem; }
.byline { text-align: center; font-style: italic; color: var(--muted); margin-top: 0; }
.rule   { margin-top: 1.2rem; }
.q {
  text-align: center;
  font-size: 1.18em;
  font-style: italic;
}
blockquote.honest { background: rgba(0, 0, 0, 0.04); }
.endmark {
  text-align: center;
  font-size: 1.5em;
  color: var(--muted);
  margin: 2.2rem 0 0.5rem;
}

/* Small screens: trim the sheet padding so text isn't squeezed. */
@media (max-width: 600px) {
  body  { padding: 1rem 0.5rem; }
  .sheet { padding: 1.6rem 1.3rem; }
  body  { font-size: 19px; }
}