/* ============ FONTS ============ */
@font-face {
  font-family: 'YasiHand';
  src: url('../assets/YasiHand-Regular.woff2') format('woff2'),
       url('../assets/YasiHand-Regular.ttf') format('truetype');
  font-weight: normal; font-style: normal; font-display: swap;
}

/* ============ VARIABLES ============ */
:root {
  --page: #EEE9E3;
  --ink: #1a1a1a;
  --ink2: #3a3a3a;
  --ink3: #777;
  --ink4: #aaa;
  --highlight: rgba(147, 197, 222, 0.45);
  --highlight-strong: rgba(147, 197, 222, 0.7);
  --hand: 'YasiHand', 'Caveat', cursive;
  --serif: 'Cormorant', Georgia, serif;
  --body: 'Newsreader', Georgia, serif;
  --mono: 'IBM Plex Mono', monospace;
}

/* ============ RESET & BASE ============ */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: 17px; -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--body); color: var(--ink);
  background: var(--page); min-height: 100vh; overflow-x: hidden;
}
::selection { background: var(--highlight-strong); }

/* ============ CONTENT PAGE LAYOUT ============ */
.content-nav {
  position: sticky; top: 0; z-index: 50;
  background: var(--page);
  border-bottom: 1px solid rgba(0,0,0,0.06);
  padding: 0.9rem 2rem;
  display: flex; align-items: baseline; justify-content: space-between;
}
.back-btn {
  font-family: var(--hand); font-size: 1.15rem;
  color: var(--ink3); background: none; border: none;
  cursor: pointer; padding: 0.2rem 0.5rem; position: relative;
  transition: color 0.15s; text-decoration: none;
}
.back-btn::before {
  content: ''; position: absolute; inset: 0;
  background: var(--highlight); opacity: 0; z-index: -1;
  border-radius: 2px; transition: opacity 0.15s;
}
.back-btn:hover::before { opacity: 1; }
.back-btn:hover { color: var(--ink); }
.content-title {
  font-family: var(--serif); font-size: 1.05rem;
  font-weight: 500; color: var(--ink);
}
.content-body {
  max-width: 640px; margin: 0 auto; padding: 4rem 2rem 6rem;
}
.content-body h1 {
  font-family: var(--serif); font-size: 2.6rem;
  font-weight: 400; margin-bottom: 1.5rem; line-height: 1.15;
  position: relative; display: inline-block;
}
.content-body h1::after {
  content: ''; position: absolute;
  left: -3px; right: -3px; bottom: 3px;
  height: 7px; background: var(--highlight); z-index: -1;
  border-radius: 2px 1px 3px 1px;
}
.content-body h2 {
  font-family: var(--serif); font-size: 1.4rem;
  font-weight: 400; color: var(--ink);
  margin: 2.5rem 0 1rem; position: relative; display: inline-block;
}
.content-body h2::after {
  content: ''; position: absolute;
  left: -2px; right: -2px; bottom: 2px;
  height: 5px; background: var(--highlight); z-index: -1;
}
.content-body p {
  font-size: 1.03rem; line-height: 1.78;
  color: var(--ink2); margin-bottom: 1rem;
}
.content-body a {
  color: #3a4f6a; text-decoration: underline;
  text-decoration-color: rgba(58,79,106,0.3);
  text-underline-offset: 3px;
}
.content-body a:hover { text-decoration-color: #3a4f6a; }

/* ============ ENTRIES (research, writing, projects) ============ */
.entry {
  padding: 1rem 0; border-bottom: 1px solid rgba(0,0,0,0.06);
  display: grid; grid-template-columns: 1fr auto;
  gap: 1rem; align-items: baseline; transition: padding-left 0.15s;
}
.entry:first-of-type { border-top: 1px solid rgba(0,0,0,0.06); }
.entry:hover { padding-left: 0.3rem; }
.entry-title { font-size: 1rem; font-weight: 500; color: var(--ink); line-height: 1.35; }
.entry-desc { font-size: 0.85rem; font-weight: 300; font-style: italic; color: var(--ink3); margin-top: 0.1rem; }
.entry-meta { font-family: var(--mono); font-size: 0.68rem; color: var(--ink3); white-space: nowrap; }

/* ============ CONTACT ============ */
.contact-links {
  margin-top: 1rem; line-height: 2.2;
  font-family: var(--mono); font-size: 0.82rem; color: var(--ink2);
}
.contact-links a { color: #3a4f6a; }

/* ============ RESPONSIVE ============ */
@media (max-width: 768px) {
  .content-nav { padding: 0.7rem 1rem; }
  .back-btn { font-size: 1rem; }
  .content-title { font-size: 0.9rem; }
  .content-body { padding: 2rem 1.2rem 4rem; }
  .content-body h1 { font-size: 1.7rem; }
  .content-body p { font-size: 0.92rem; }
  .entry { grid-template-columns: 1fr; gap: 0.2rem; }
  .entry-title { font-size: 0.92rem; }
  .entry-meta { font-size: 0.62rem; }
}

@media (max-width: 480px) {
  .content-body { padding: 1.5rem 1rem 3rem; }
  .content-body h1 { font-size: 1.4rem; }
  .content-body h2 { font-size: 1.2rem; }
  .content-body p { font-size: 0.85rem; line-height: 1.65; }
  .entry-title { font-size: 0.85rem; }
}