/* Styling for the reading pages (About / Privacy / Principles / Blog).
   Deliberately separate from style.css: the app is a fixed, non-scrolling
   fullscreen night scene, these are ordinary documents you sit and read. They
   are light on purpose — long text on a dark background is tiring, and these
   pages exist to be read all the way through.

   Headings and UI keep the app's sans; body copy is set in a serif at a
   comfortable measure, which is what makes a page feel like an article. */

:root {
  --paper: #ffffff;
  --paper-soft: #faf8f4;
  --ink: #23201b;
  --ink-soft: #6b6459;
  --ink-faint: #8d867a;
  --accent: #a3641a;
  --accent-deep: #7d4a10;
  --line: #e8e3db;
  --radius-md: 14px;
  --sans: "Nunito", "PingFang SC", "Hiragino Sans GB", "Noto Sans", "Segoe UI", system-ui, sans-serif;
  --serif: Georgia, "Iowan Old Style", "Times New Roman", "Songti SC", "Noto Serif SC", serif;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  min-height: 100%;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 19px;
  line-height: 1.78;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---- Shell ---- */
.page {
  max-width: 660px;
  margin: 0 auto;
  padding: 0 22px 80px;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 26px 0 40px;
  font-family: var(--sans);
}
.brand-link {
  color: var(--ink);
  font-weight: 800;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  font-size: 0.78rem;
}
.brand-link:hover { text-decoration: none; color: var(--accent); }
.page-nav { display: flex; flex-wrap: wrap; gap: 16px; font-size: 0.84rem; }
.page-nav a { color: var(--ink-soft); font-weight: 600; }
.page-nav a[aria-current="page"] { color: var(--accent); }

/* ---- Type ---- */
h1 {
  font-family: var(--sans);
  font-size: 2.1rem;
  line-height: 1.22;
  letter-spacing: -0.015em;
  margin: 0 0 12px;
}
h2 {
  font-family: var(--sans);
  font-size: 1.24rem;
  line-height: 1.35;
  margin: 46px 0 12px;
  letter-spacing: -0.005em;
}
h3 {
  font-family: var(--sans);
  font-size: 1.04rem;
  margin: 32px 0 6px;
}
p { margin: 0 0 22px; }
ul { margin: 0 0 22px; padding-left: 22px; }
li { margin-bottom: 12px; }
li::marker { color: var(--accent); }
strong { font-weight: 700; color: #100e0b; }
em { font-style: italic; }

.lede {
  font-size: 1.16rem;
  line-height: 1.7;
  color: #3c372f;
  margin-bottom: 34px;
}
.meta {
  font-family: var(--sans);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  color: var(--ink-faint);
  margin: 0 0 30px;
}

.note {
  background: var(--paper-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 20px 22px;
  margin: 32px 0;
  font-size: 0.98rem;
}
.note p:last-child { margin-bottom: 0; }
.note h3:first-child { margin-top: 0; }
.note-warm { background: #fdf3e4; border-color: #f0dcbc; }

blockquote {
  margin: 32px 0;
  padding: 4px 0 4px 22px;
  border-left: 3px solid var(--accent);
  font-size: 1.12rem;
  font-style: italic;
  color: #433d34;
}
blockquote p:last-child { margin-bottom: 0; }

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

img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 32px auto;
  border-radius: 10px;
  box-shadow: 0 4px 20px rgba(60, 45, 20, 0.12);
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.86em;
  background: var(--paper-soft);
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 1px 5px;
}

/* ---- Blog index: each post is a card you can obviously click ---- */
.post-list { list-style: none; margin: 0; padding: 0; }
.post-list li { margin-bottom: 18px; }
.post-list a {
  display: block;
  padding: 22px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--paper);
  color: inherit;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}
/* Each card gets a slightly different warm tint, cycling every three, so the
   eye separates one post from the next at a glance instead of reading a wall
   of identical white boxes. */
.post-list li:nth-child(3n + 1) a { background: #fffdf6; border-color: #efe8d8; }
.post-list li:nth-child(3n + 2) a { background: #fdf7ea; border-color: #ecdfc7; }
.post-list li:nth-child(3n + 3) a { background: #fbf3e2; border-color: #e7d8ba; }
.post-list a:hover {
  text-decoration: none;
  border-color: #d8cdb9;
  box-shadow: 0 6px 22px rgba(60, 45, 20, 0.09);
  transform: translateY(-2px);
}
.post-list h2 {
  margin: 0 0 6px;
  font-size: 1.22rem;
  line-height: 1.3;
  color: var(--ink);
}
.post-list a:hover h2 { color: var(--accent-deep); }
.post-list .meta { margin: 0 0 8px; }
.post-list p { margin: 0; font-size: 0.98rem; line-height: 1.65; color: #4a443b; }
/* "Read →" — the affordance that says this whole card is a link. */
.post-list a::after {
  content: "Read →";
  display: block;
  margin-top: 12px;
  font-family: var(--sans);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--accent);
}

/* ---- Call to action back into the app ---- */
.cta {
  display: inline-block;
  margin: 12px 0 4px;
  padding: 14px 30px;
  border-radius: 999px;
  font-family: var(--sans);
  font-weight: 800;
  font-size: 0.95rem;
  color: #40270a;
  background: linear-gradient(135deg, #ffd6a0, #ffb066);
  box-shadow: 0 6px 18px rgba(255, 154, 74, 0.32);
}
.cta:hover {
  text-decoration: none;
  box-shadow: 0 8px 24px rgba(255, 154, 74, 0.45);
}

/* ---- Footer ---- */
.page-footer {
  border-top: 1px solid var(--line);
  margin-top: 60px;
  padding-top: 26px;
  font-family: var(--sans);
  font-size: 0.82rem;
  color: var(--ink-faint);
}
.page-footer nav { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 12px; }
.page-footer a { color: var(--ink-soft); font-weight: 600; }
.page-footer p { margin: 0; }

@media (max-width: 520px) {
  body { font-size: 18px; }
  .page { padding: 0 18px 64px; }
  h1 { font-size: 1.72rem; }
  h2 { font-size: 1.14rem; margin-top: 38px; }
  .lede { font-size: 1.08rem; }
  .page-header { flex-direction: column; align-items: flex-start; gap: 10px; padding-bottom: 30px; }
  .post-list a { padding: 18px 19px; }
}

/* An aside inside a list of rules: quieter than the rules, still part of them. */
.note-inline {
  margin: 10px 0 0;
  padding-left: 14px;
  border-left: 3px solid rgba(0, 0, 0, 0.12);
  font-size: 0.95em;
  opacity: 0.85;
}