/* =============================================
   Eilie H. - Personal Brand Site
   Aesthetic: Editorial Literary / Warm Minimal
   ============================================= */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,500;0,700;1,400;1,500&family=EB+Garamond:ital,wght@0,400;0,500;1,400&family=DM+Mono:wght@400;500&display=swap');

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --cream: #f5f0e8;
  --cream-dark: #ede7d9;
  --ink: #1a1714;
  --ink-mid: #3d3830;
  --ink-light: #6b6259;
  --ink-muted: #9e9488;
  --accent: #b85c38;
  --accent-light: #d4784e;
  --accent-pale: #f0e0d6;
  --rule: #d4cdc3;
  --white: #fdfaf6;

  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'EB Garamond', Georgia, serif;
  --font-mono: 'DM Mono', 'Courier New', monospace;

  --max-w: 720px;
  --max-w-wide: 1100px;
  --side: clamp(1.25rem, 5vw, 3rem);

  --transition: 180ms ease;
}

html { font-size: 18px; scroll-behavior: smooth; }

body {
  background: var(--cream);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ---- Typography ---- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  line-height: 1.2;
  color: var(--ink);
  font-weight: 500;
}

h1 { font-size: clamp(2rem, 5vw, 3.2rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.4rem, 3vw, 1.9rem); margin-top: 2.5rem; margin-bottom: 0.75rem; }
h3 { font-size: 1.25rem; margin-top: 2rem; margin-bottom: 0.5rem; }

p { margin-bottom: 1.25em; }
p:last-child { margin-bottom: 0; }

a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color var(--transition), opacity var(--transition);
}
a:hover { color: var(--ink); }

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

blockquote {
  border-left: 2px solid var(--accent);
  margin: 2rem 0;
  padding: 0.5rem 0 0.5rem 1.5rem;
  color: var(--ink-mid);
  font-style: italic;
  font-size: 1.1rem;
}

hr {
  border: none;
  border-top: 1px solid var(--rule);
  margin: 3rem 0;
}

code {
  font-family: var(--font-mono);
  font-size: 0.82em;
  background: var(--cream-dark);
  padding: 0.1em 0.4em;
  border-radius: 2px;
  color: var(--ink-mid);
}

pre {
  background: var(--ink);
  color: var(--cream);
  padding: 1.5rem;
  border-radius: 4px;
  overflow-x: auto;
  margin: 1.5rem 0;
}
pre code { background: none; padding: 0; color: inherit; font-size: 0.85em; }

ul, ol { padding-left: 1.5rem; margin-bottom: 1.25em; }
li { margin-bottom: 0.4em; }

/* ---- Layout ---- */
.container {
  width: 100%;
  max-width: var(--max-w-wide);
  margin: 0 auto;
  padding: 0 var(--side);
}

.container--narrow {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--side);
}

main { flex: 1; }

/* ---- Header ---- */
.site-header {
  border-bottom: 1px solid var(--rule);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  background: rgba(245, 240, 232, 0.94);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  padding-bottom: 1rem;
  gap: 2rem;
}

.site-logo {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.02em;
  flex-shrink: 0;
}
.site-logo:hover { color: var(--accent); }
.site-logo .logo-dot { color: var(--accent); }

/* ---- Nav ---- */
.site-nav { display: flex; align-items: center; gap: 2rem; }

.site-nav a {
  font-family: var(--font-body);
  font-size: 0.9rem;
  text-decoration: none;
  color: var(--ink-light);
  letter-spacing: 0.04em;
  transition: color var(--transition);
}
.site-nav a:hover, .site-nav a.active { color: var(--ink); }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.25rem;
  color: var(--ink);
}

/* ---- Footer ---- */
.site-footer {
  border-top: 1px solid var(--rule);
  padding: 2.5rem 0;
  margin-top: 5rem;
}

.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.site-footer__copy {
  font-size: 0.85rem;
  color: var(--ink-muted);
  font-family: var(--font-body);
}

.site-footer__links { display: flex; flex-wrap: wrap; gap: 1.5rem; }
.site-footer__links a {
  font-size: 0.85rem;
  color: var(--ink-muted);
  text-decoration: none;
}
.site-footer__links a:hover { color: var(--accent); }

/* ---- Hero ---- */
.hero {
  padding: 5rem 0 4rem;
  border-bottom: 1px solid var(--rule);
}

.hero__eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.25rem;
}

.hero__title {
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  font-weight: 400;
  line-height: 1.08;
  letter-spacing: -0.03em;
  max-width: 14ch;
  margin-bottom: 1.75rem;
}
.hero__title em { font-style: italic; color: var(--accent); }

.hero__subtitle {
  font-size: 1.15rem;
  color: var(--ink-mid);
  max-width: 52ch;
  line-height: 1.65;
  margin-bottom: 2.5rem;
}

.hero__cta { display: inline-flex; gap: 1rem; flex-wrap: wrap; }

/* ---- Buttons ---- */
.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.9rem;
  padding: 0.7rem 1.6rem;
  border-radius: 2px;
  text-decoration: none;
  transition: all var(--transition);
  cursor: pointer;
  border: 1px solid transparent;
}

.btn--primary { background: var(--ink); color: var(--cream); border-color: var(--ink); }
.btn--primary:hover { background: var(--accent); border-color: var(--accent); color: var(--white); }

.btn--outline { background: transparent; color: var(--ink); border-color: var(--rule); }
.btn--outline:hover { border-color: var(--ink); color: var(--ink); }

/* ---- Section Labels ---- */
.section-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}
.section-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--rule);
}

/* ---- Topic Grid ---- */
.topics-section { padding: 4rem 0; }

.topics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}

.topic-card {
  background: var(--cream);
  padding: 2rem;
  text-decoration: none;
  display: block;
  transition: background var(--transition);
}
.topic-card:hover { background: var(--white); }
.topic-card:hover .topic-card__title { color: var(--accent); }

.topic-card__category {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.topic-card__title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--ink);
  line-height: 1.25;
  margin-bottom: 0.75rem;
  transition: color var(--transition);
}

.topic-card__desc {
  font-size: 0.9rem;
  color: var(--ink-light);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.topic-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.78rem;
  color: var(--ink-muted);
  font-family: var(--font-mono);
}

.topic-card__updates {
  background: var(--accent-pale);
  color: var(--accent);
  padding: 0.15rem 0.5rem;
  border-radius: 1px;
  font-size: 0.68rem;
}

/* ---- Topic Page ---- */
.topic-page { padding: 3rem 0 5rem; }

.topic-header {
  padding-bottom: 2.5rem;
  margin-bottom: 3rem;
  border-bottom: 1px solid var(--rule);
}

.topic-header__tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1.25rem; }

.tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-light);
  background: var(--cream-dark);
  padding: 0.2rem 0.6rem;
  border-radius: 1px;
  text-decoration: none;
  transition: background var(--transition), color var(--transition);
}
.tag:hover { background: var(--accent-pale); color: var(--accent); }

.topic-header__title {
  font-size: clamp(2rem, 5vw, 3.2rem);
  margin-bottom: 1rem;
  line-height: 1.15;
}

.topic-header__desc {
  font-size: 1.1rem;
  color: var(--ink-mid);
  line-height: 1.7;
  max-width: 60ch;
  margin-bottom: 1.5rem;
}

.topic-header__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--ink-muted);
  align-items: center;
}
.topic-header__meta-item { display: flex; align-items: center; gap: 0.4rem; }
.topic-header__meta-item .label { color: var(--ink-muted); }
.topic-header__meta-item .value { color: var(--ink-light); }

/* ---- Content Layout ---- */
.topic-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 4rem;
  align-items: start;
}
.topic-layout__main { min-width: 0; }
.topic-layout__aside { position: sticky; top: 80px; }

/* ---- Prose ---- */
.prose { font-size: 1.05rem; line-height: 1.82; }
.prose h2 { font-size: 1.6rem; margin-top: 3rem; }
.prose h3 { font-size: 1.2rem; }
.prose img { width: 100%; height: auto; border-radius: 2px; margin: 1.5rem 0; }

/* ---- Updates Feed ---- */
.updates-section { margin-top: 4rem; padding-top: 3rem; border-top: 1px solid var(--rule); }

.updates-feed { list-style: none; padding: 0; }

.update-item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 1.5rem;
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--cream-dark);
  align-items: start;
}
.update-item:last-child { border-bottom: none; }

.update-date {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--ink-muted);
  line-height: 1.4;
  padding-top: 0.2rem;
  text-align: right;
}

.update-body__title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--ink);
}

.update-body__content {
  font-size: 0.95rem;
  color: var(--ink-mid);
  line-height: 1.7;
}

/* ---- FAQ Section ---- */
.faq-section { margin-top: 4rem; padding-top: 3rem; border-top: 1px solid var(--rule); }

.faq-list { list-style: none; padding: 0; }
.faq-item { border-bottom: 1px solid var(--cream-dark); }

.faq-question {
  width: 100%;
  background: none;
  border: none;
  text-align: left;
  cursor: pointer;
  padding: 1.25rem 0;
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--ink);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  transition: color var(--transition);
}
.faq-question:hover { color: var(--accent); }

.faq-icon {
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  position: relative;
  color: var(--ink-muted);
}
.faq-icon::before, .faq-icon::after {
  content: '';
  position: absolute;
  background: currentColor;
  transition: transform 240ms ease, opacity 240ms ease;
}
.faq-icon::before { width: 100%; height: 1px; top: 50%; left: 0; transform: translateY(-50%); }
.faq-icon::after  { width: 1px; height: 100%; left: 50%; top: 0; transform: translateX(-50%); }

.faq-item.open .faq-icon::after { transform: translateX(-50%) rotate(90deg); opacity: 0; }
.faq-item.open .faq-question { color: var(--accent); }

.faq-answer {
  display: none;
  padding-bottom: 1.25rem;
  font-size: 0.97rem;
  color: var(--ink-mid);
  line-height: 1.75;
}
.faq-item.open .faq-answer { display: block; }

/* ---- Sidebar ---- */
.sidebar-toc { margin-bottom: 2.5rem; }
.sidebar-toc__title {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 1rem;
}

.toc-list { list-style: none; padding: 0; }
.toc-list li { border-left: 1px solid var(--rule); }
.toc-list a {
  display: block;
  padding: 0.3rem 0 0.3rem 1rem;
  font-size: 0.84rem;
  color: var(--ink-light);
  text-decoration: none;
  border-left: 2px solid transparent;
  margin-left: -1px;
  transition: all var(--transition);
  line-height: 1.4;
}
.toc-list a:hover, .toc-list a.active { color: var(--accent); border-left-color: var(--accent); }

.sidebar-widget {
  background: var(--white);
  border: 1px solid var(--rule);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}
.sidebar-widget__title {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 1rem;
}

/* ---- Breadcrumb ---- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  font-size: 0.82rem;
  color: var(--ink-muted);
  font-family: var(--font-mono);
  margin-bottom: 2rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--cream-dark);
}
.breadcrumb a { color: var(--ink-muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb__sep { color: var(--rule); }
.breadcrumb__current { color: var(--ink-light); }

/* ---- About Page ---- */
.about-page { padding: 4rem 0 6rem; }

.about-intro {
  display: grid;
  grid-template-columns: 1fr 200px;
  gap: 3rem;
  align-items: start;
  padding-bottom: 3rem;
  margin-bottom: 3rem;
  border-bottom: 1px solid var(--rule);
}

.about-avatar {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 2px;
  filter: grayscale(20%);
}

.about-avatar-placeholder {
  width: 100%;
  aspect-ratio: 1;
  background: var(--cream-dark);
  border-radius: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 3rem;
  color: var(--ink-muted);
  font-style: italic;
}

/* ---- Archive ---- */
.archive-page { padding: 3rem 0 5rem; }

.archive-year { margin-bottom: 3rem; }
.archive-year__heading {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}
.archive-year__heading::after { content: ''; flex: 1; height: 1px; background: var(--rule); }

.archive-list { list-style: none; padding: 0; }
.archive-entry {
  display: flex;
  gap: 1.5rem;
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--cream-dark);
  align-items: baseline;
}
.archive-entry__date {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink-muted);
  flex-shrink: 0;
  width: 100px;
}
.archive-entry__title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 400;
  color: var(--ink);
  text-decoration: none;
  transition: color var(--transition);
}
.archive-entry__title:hover { color: var(--accent); }

/* ---- 404 ---- */
.error-page { padding: 6rem 0; text-align: center; }
.error-page__code {
  font-family: var(--font-display);
  font-size: 8rem;
  font-weight: 400;
  color: var(--cream-dark);
  line-height: 1;
  margin-bottom: 1rem;
}

/* ============================================================
   AD SLOTS
   Standard IAB sizes only:
     - 728×90  Leaderboard      (desktop horizontal, ≥768px)
     - 468×60  Banner           (mid-width horizontal, ≥468px)
     - 320×50  Mobile Banner    (<768px)
     - 300×250 Medium Rectangle (sidebar + inline)
   ============================================================ */

.ad-slot {
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--cream-dark);
  border: 1px dashed var(--rule);
  color: var(--ink-muted);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  position: relative;
  /* Center horizontally */
  margin-left: auto;
  margin-right: auto;
}

/* Horizontal ad slots: all hidden by default, one shown per breakpoint */
.ad-slot--leaderboard,
.ad-slot--banner,
.ad-slot--mobile-banner {
  display: none; /* shown exclusively via media queries below */
  margin-top: 1.5rem;
  margin-bottom: 1.5rem;
}

/* Leaderboard 728×90 */
.ad-slot--leaderboard {
  width: 728px;
  height: 90px;
  max-width: 100%;
}

/* Banner 468×60 */
.ad-slot--banner {
  width: 468px;
  height: 60px;
  max-width: 100%;
}

/* Mobile Banner 320×50 */
.ad-slot--mobile-banner {
  width: 320px;
  height: 50px;
  max-width: 100%;
  margin-top: 1rem;
  margin-bottom: 1rem;
}

/* Medium Rectangle 300×250 - sidebar & inline */
.ad-slot--rectangle {
  width: 300px;
  height: 250px;
  max-width: 100%;
}

/* ---- Ad visibility logic by breakpoint ---- */
/* Large screens: show leaderboard */
@media (min-width: 768px) {
  .ad-slot--leaderboard { display: flex; }
  .ad-slot--banner      { display: none; }
  .ad-slot--mobile-banner { display: none; }
}

/* Mid screens (468-767px): show banner instead of leaderboard */
@media (min-width: 468px) and (max-width: 767px) {
  .ad-slot--leaderboard { display: none; }
  .ad-slot--banner      { display: flex; }
  .ad-slot--mobile-banner { display: none; }
}

/* Mobile (<468px): show mobile banner */
@media (max-width: 467px) {
  .ad-slot--leaderboard { display: none; }
  .ad-slot--banner      { display: none; }
  .ad-slot--mobile-banner { display: flex; }
}

/* ---- Utilities ---- */
.text-muted { color: var(--ink-muted); }
.text-accent { color: var(--accent); }
.mono { font-family: var(--font-mono); }

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .topic-layout { grid-template-columns: 1fr; }
  .topic-layout__aside { position: static; }
}

@media (max-width: 700px) {
  html { font-size: 16px; }

  .about-intro { grid-template-columns: 1fr; }
  .about-intro__img { order: -1; max-width: 180px; }

  .update-item { grid-template-columns: 1fr; gap: 0.5rem; }
  .update-date { text-align: left; }

  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(245, 240, 232, 0.97);
    backdrop-filter: blur(10px);
    flex-direction: column;
    padding: 1.5rem var(--side);
    gap: 1.25rem;
    border-bottom: 1px solid var(--rule);
    box-shadow: 0 8px 24px rgba(0,0,0,0.06);
  }
  .site-nav.open { display: flex; }
  .nav-toggle { display: block; }

  .topics-grid { grid-template-columns: 1fr; }
  .hero { padding: 3rem 0 2.5rem; }
  .archive-entry { flex-direction: column; gap: 0.25rem; }

  /* Sidebar rectangle ads go full-width on mobile */
  .ad-slot--rectangle { width: 100%; height: auto; min-height: 250px; }
}

/* ---- Animations ---- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-up            { animation: fadeUp 0.5s ease both; }
.fade-up-1          { animation-delay: 0.05s; }
.fade-up-2          { animation-delay: 0.12s; }
.fade-up-3          { animation-delay: 0.2s; }
.fade-up-4          { animation-delay: 0.28s; }

/* ---- Skip link (accessibility) ---- */
.skip-link {
  position: fixed;
  top: -4rem;
  left: 1rem;
  background: var(--ink);
  color: var(--cream);
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  z-index: 9999;
  text-decoration: none;
  border-radius: 0 0 2px 2px;
  transition: top 0.15s ease;
}
.skip-link:focus { top: 0; }

/* ---- Print ---- */
@media print {
  .site-header, .site-footer, .topic-layout__aside, .ad-slot { display: none !important; }
  .topic-layout { grid-template-columns: 1fr; }
  body { font-size: 12pt; background: white; color: black; }
}