/* Harry Chen — personal site
   One stylesheet for every page. Tokens first, then layout, then components. */

:root {
  --paper:       #F3F3F0;
  --surface:     #FFFFFF;
  --ink:         #171A17;
  --ink-2:       #4E524C;
  --ink-3:       #858A82;
  --line:        #E2E2DC;
  --line-2:      #CFCFC7;
  --accent:      #1F5A3D;
  --accent-soft: #E1EDE6;

  --font-display: "Newsreader", Georgia, "Songti SC", serif;
  --font-body:    -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, "PingFang SC", sans-serif;
  --font-mono:    "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --measure: 680px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper:       #0F110F;
    --surface:     #171A17;
    --ink:         #EDEFEA;
    --ink-2:       #AEB3A9;
    --ink-3:       #7C817A;
    --line:        #262A26;
    --line-2:      #3A403A;
    --accent:      #6FBF92;
    --accent-soft: #15301F;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  padding: 0 24px 96px;
}

.wrap { max-width: var(--measure); margin: 0 auto; }

/* ---------- links ---------- */

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

.skip {
  position: absolute; left: -9999px;
}
.skip:focus {
  position: static; display: inline-block; margin: 12px 0; font-family: var(--font-mono); font-size: 13px;
}

/* ---------- site header ---------- */

.site {
  max-width: var(--measure); margin: 0 auto;
  padding: 40px 0 0;
  display: flex; align-items: baseline; justify-content: space-between; gap: 20px; flex-wrap: wrap;
}
.wordmark {
  font-family: var(--font-display); font-weight: 600; font-size: 19px;
  color: var(--ink); text-decoration: none; letter-spacing: -.01em;
}
.wordmark:hover { color: var(--accent); }
.site nav { display: flex; gap: 18px; font-family: var(--font-mono); font-size: 13px; }
.site nav a { color: var(--ink-3); text-decoration: none; }
.site nav a:hover, .site nav a[aria-current="page"] { color: var(--ink); }

/* ---------- page head ---------- */

main { max-width: var(--measure); margin: 0 auto; }

.eyebrow {
  font-family: var(--font-mono); font-size: 12px; letter-spacing: .12em;
  text-transform: uppercase; color: var(--ink-3); margin: 0 0 14px;
}

h1 {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(34px, 6vw, 46px); line-height: 1.12; letter-spacing: -.015em;
  margin: 56px 0 0; text-wrap: balance;
}
.lead {
  font-size: 20px; line-height: 1.55; color: var(--ink-2);
  margin: 18px 0 0; max-width: 34em;
}

h2 {
  font-family: var(--font-display); font-weight: 600;
  font-size: 25px; line-height: 1.25; letter-spacing: -.01em;
  margin: 52px 0 14px;
}
h3 {
  font-family: var(--font-body); font-weight: 600; font-size: 17px;
  margin: 30px 0 6px;
}

p { margin: 0 0 18px; }
p:last-child { margin-bottom: 0; }

strong { font-weight: 600; color: var(--ink); }

hr {
  border: 0; border-top: 1px solid var(--line); margin: 48px 0;
}

/* ---------- catalogue of apps ---------- */

.catalogue { border-top: 1px solid var(--line-2); }

.entry {
  border-bottom: 1px solid var(--line);
  padding: 26px 0;
  display: flex; flex-direction: column; gap: 8px;
}
.entry-head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; }
.entry-name {
  font-family: var(--font-display); font-weight: 600; font-size: 26px;
  letter-spacing: -.01em; margin: 0;
}
.entry-name a { color: var(--ink); text-decoration: none; }
.entry-name a:hover { color: var(--accent); text-decoration: underline; text-underline-offset: 4px; }
.status {
  font-family: var(--font-mono); font-size: 11.5px; letter-spacing: .06em;
  text-transform: uppercase; color: var(--ink-3); white-space: nowrap;
  border: 1px solid var(--line-2); border-radius: 3px; padding: 3px 8px;
}
.status.live { color: var(--accent); border-color: var(--accent); }
.entry-desc { margin: 0; color: var(--ink-2); max-width: 40em; }
.entry-meta {
  font-family: var(--font-mono); font-size: 12.5px; color: var(--ink-3);
  display: flex; flex-wrap: wrap; gap: 6px 10px; align-items: center;
}
.entry-links { display: flex; flex-wrap: wrap; gap: 16px; font-family: var(--font-mono); font-size: 13px; margin-top: 2px; }

/* ---------- spec list (requirements, facts) ---------- */

.spec {
  font-family: var(--font-mono); font-size: 13.5px; line-height: 1.7;
  border-left: 2px solid var(--line-2); padding: 2px 0 2px 16px;
  color: var(--ink-2); margin: 0 0 18px;
}
.spec b { color: var(--ink); font-weight: 500; }

/* ---------- contact block ---------- */

.contact {
  border-left: 2px solid var(--accent);
  background: var(--accent-soft);
  padding: 22px 24px; margin: 8px 0 0;
  display: flex; flex-direction: column; gap: 8px;
}
.contact .label {
  font-family: var(--font-mono); font-size: 11.5px; letter-spacing: .12em;
  text-transform: uppercase; color: var(--ink-2);
}
.contact .addr { font-size: 21px; font-weight: 600; word-break: break-word; }
.contact .addr a { color: var(--ink); }
.contact p { font-size: 15px; color: var(--ink-2); margin: 0; }

/* ---------- lists ---------- */

ul.plain { list-style: none; margin: 0 0 18px; padding: 0; display: flex; flex-direction: column; gap: 10px; }
ul.plain li { padding-left: 20px; position: relative; color: var(--ink-2); }
ul.plain li::before {
  content: ""; position: absolute; left: 2px; top: .72em;
  width: 6px; height: 1px; background: var(--line-2);
}
ul.plain li b { color: var(--ink); font-weight: 600; }

/* ---------- faq ---------- */

.faq { border-top: 1px solid var(--line); margin-top: 8px; }
.faq > div { border-bottom: 1px solid var(--line); padding: 22px 0; }
.faq h3 { margin: 0 0 6px; }
.faq p { color: var(--ink-2); margin: 0 0 10px; }
.faq p:last-child { margin-bottom: 0; }

/* ---------- footer ---------- */

footer {
  max-width: var(--measure); margin: 72px auto 0;
  border-top: 1px solid var(--line); padding-top: 20px;
  font-family: var(--font-mono); font-size: 12.5px; color: var(--ink-3);
  display: flex; flex-wrap: wrap; gap: 8px 20px; justify-content: space-between;
}
footer a { color: var(--ink-3); }
footer a:hover { color: var(--ink); }

/* ---------- small screens ---------- */

@media (max-width: 560px) {
  body { padding: 0 20px 72px; font-size: 16.5px; }
  h1 { margin-top: 40px; }
  .lead { font-size: 18px; }
  .entry-head { flex-direction: column; align-items: flex-start; gap: 8px; }
  .contact .addr { font-size: 18px; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}

/* OpenPreview uses the same single-column layout and shared tokens. */
.site nav { flex-wrap: wrap; }
.product-icon { display: block; margin-top: 48px; border-radius: 18px; }
.product-icon + h1 { margin-top: 24px; }