/* depeiyu.com: one quiet column, set like an engineer's notebook.
   Plex Sans for reading, Plex Mono for labels and dates; ink on paper-white
   with a single deep-green accent for links. */
:root {
  --paper: #fbfbfa;
  --ink: #16191d;
  --muted: #5f6670;
  --rule: #e3e5e8;
  --accent: #0f6b4f;
  --accent-soft: rgba(15, 107, 79, .10);
  --sans: "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #111315;
    --ink: #e6e8eb;
    --muted: #9aa1aa;
    --rule: #262a2f;
    --accent: #5fc7a0;
    --accent-soft: rgba(95, 199, 160, .12);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 17px/1.6 var(--sans); }

.page {
  max-width: 44rem;
  margin: 0 auto;
  padding: clamp(48px, 10vw, 112px) max(20px, env(safe-area-inset-right)) 64px max(20px, env(safe-area-inset-left));
  display: grid;
  gap: 56px;
}

.label {
  margin: 0;
  font: 500 12px/1.4 var(--mono);
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
}

h1 { margin: 6px 0 14px; font-size: clamp(36px, 7vw, 52px); font-weight: 600; line-height: 1.05; letter-spacing: -.02em; text-wrap: balance; }
h2.label { margin-bottom: 18px; }
h3 { margin: 0; font-size: 17px; font-weight: 600; }
p { margin: 0; }
section > p + p { margin-top: 14px; }
.list { margin: 10px 0 0; padding-left: 1.25em; max-width: 62ch; }
.list li + li { margin-top: 4px; }
.list li::marker { color: var(--accent); }
section > .list + p { margin-top: 14px; }
section > p, .lede { max-width: 62ch; }
.lede { font-size: 20px; line-height: 1.5; }

.now {
  margin-top: 22px;
  padding: 10px 14px;
  border-left: 2px solid var(--accent);
  background: var(--accent-soft);
  font-size: 15px;
  display: flex;
  gap: 12px;
  align-items: baseline;
  flex-wrap: wrap;
}
.now .label { color: var(--accent); }

.entries { list-style: none; margin: 0; padding: 0; display: grid; gap: 22px; }
.entry { display: grid; grid-template-columns: 9.5rem 1fr; gap: 4px 20px; }
.entry p:not(.when) { color: var(--muted); font-size: 16px; margin-top: 2px; }
.when { font: 400 13px/1.9 var(--mono); color: var(--muted); font-variant-numeric: tabular-nums; }
@media (max-width: 560px) {
  .entry { grid-template-columns: 1fr; }
}

.tags { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.tags li { font: 400 14px/1 var(--mono); padding: 7px 10px; border: 1px solid var(--rule); border-radius: 4px; }

.links { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.links li { display: flex; gap: 16px; align-items: baseline; flex-wrap: wrap; }
.links .k { width: 5.5rem; font: 400 13px var(--mono); color: var(--muted); }

a { color: var(--accent); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }

.foot { padding-top: 20px; border-top: 1px solid var(--rule); font: 13px var(--mono); color: var(--muted); }