/* ── CSS Custom Properties (Premium Minimalist) ────────────────────────────── */
:root {
  --surface:           #fdfcf8;
  --surface-container-low:   #f7f5f0;
  --on-surface:         #2d2a26;
  --on-surface-variant:   #7a7570;
  --primary:       #4a5d4e; /* Moss Green */
  --secondary: #8d6e63; /* Bronze Brown */
  --primary-container: #e8edea;
  --outline-variant:       rgba(0, 0, 0, 0.06);
  --radius:       8px;
  --reading-width:    720px;
  --container-lg: 1040px;
  
  /* Typography */
  --font-serif: 'Playfair Display', Georgia, serif;
  --font-sans:  'Inter', system-ui, -apple-system, sans-serif;
}

html.dark {
  --surface:               #141412;
  --surface-container-low: #1c1c1a;
  --on-surface:            #e2e0d5;
  --on-surface-variant:    #8a887d;
  --primary:               #8eb69b;
  --secondary:             #b39b92;
  --outline-variant:       rgba(255, 255, 255, 0.08);
}

.theme-sepia {
  --surface:               #faf6ef;
  --surface-container-low: #f2ece0;
  --on-surface:            #5b4636;
  --on-surface-variant:    #8b7355;
  --primary:               #6b4226;
  --secondary:             #9c7a5c;
  --outline-variant:       #d8cbb8;
}

html.dark .theme-sepia {
  --surface:               #3c3024;
  --surface-container-low: #342a20;
  --on-surface:            #d4c5a9;
  --on-surface-variant:    #b8a088;
  --primary:               #d4a574;
  --secondary:             #c9a87c;
  --outline-variant:       #6b5240;
}

/* ── Reset & base ────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
[hidden] { display: none !important; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  --transition: 200ms ease;
  background: var(--surface);
  color: var(--on-surface);
  line-height: 1.8;
  font-size: 1rem;
  transition: background var(--transition), color var(--transition);
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; transition: all var(--transition); }
a:hover { color: var(--primary); }

img { max-width: 100%; height: auto; display: block; border-radius: var(--radius); }

/* ── Typography ──────────────────────────────────────────────────────────────── */
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

/* ── Layout ──────────────────────────────────────────────────────────────────── */
.container { max-width: var(--reading-width); margin: 0 auto; padding: 0 1.5rem; }
.container--lg { max-width: var(--container-lg); }

/* ── Header & Nav ────────────────────────────────────────────────────────────── */
.site-header {
  background: rgba(253, 252, 248, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  position: sticky; top: 0; z-index: 100;
  border-bottom: 1px solid var(--outline-variant);
}

html.dark .site-header {
  background: rgba(20, 20, 18, 0.8);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 70px;
  position: relative;
  padding: 0 2rem;
}

.nav__brand {
  position: absolute;
  left: 2rem;
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary);
  white-space: nowrap;
}

.nav__links {
  display: flex;
  list-style: none;
  gap: 1.8rem;
  /* links căn giữa toàn bộ nav, độ rộng tự nhiên theo container */
}

.nav__actions {
  position: absolute;
  right: 2rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav__links a {
  font-size: 0.85rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--on-surface-variant);
}

.nav__links a:hover {
  color: var(--primary);
}

.nav__links a.nav__link--active {
  color: var(--primary);
  position: relative;
}

.nav__links a.nav__link--active::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0; right: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

/* ── Hero Section ────────────────────────────────────────────────────────────── */
.hero {
  padding: 6rem 0 4rem;
  text-align: center;
}

.hero__title {
  font-size: clamp(2.5rem, 8vw, 4rem);
  margin-bottom: 1rem;
}

.hero__sub {
  font-family: var(--font-sans);
  --transition: 200ms ease;
  font-size: 1.1rem;
  color: var(--on-surface-variant);
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

/* ── Home Page Elements ──────────────────────────────────────────────────────── */
.section-title {
  font-size: 1.5rem;
  margin-bottom: 2rem;
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -8px; left: 0;
  width: 40px; height: 2px;
  background: var(--primary);
}

.empty-state {
  text-align: center;
  padding: 4rem 0;
  color: var(--on-surface-variant);
}

.empty-state__icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  opacity: 0.3;
}

/* ── Cards ───────────────────────────────────────────────────────────────────── */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2.5rem;
}

.card {
  transition: transform 0.3s ease;
}

.card:hover {
  transform: translateY(-5px);
}

.card__cover-wrapper {
  overflow: hidden;
  border-radius: var(--radius);
  aspect-ratio: 16/10;
  margin-bottom: 1.2rem;
  background: var(--surface-container-low);
}

.card__cover {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.card:hover .card__cover {
  transform: scale(1.05);
}

.card__category {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--primary);
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
  display: block;
}

.card__title {
  font-size: 1.4rem;
  margin-bottom: 0.8rem;
}

/* ── Music Player ────────────────────────────────────────────────────────────── */
.music-player {
  position: fixed;
  bottom: 2rem; right: 2rem;
  z-index: 1000;
}

#music-toggle {
  width: 50px; height: 50px;
  border-radius: 50%;
  border: 1px solid var(--outline-variant);
  background: var(--surface-container-low);
  color: var(--primary);
  box-shadow: 0 10px 30px rgba(0,0,0,0.12);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

#music-toggle:hover {
  transform: scale(1.1) translateY(-3px);
  box-shadow: 0 15px 35px rgba(0,0,0,0.12);
}

html:not(.dark) #music-toggle {
  background: #fff;
  border-color: rgba(0,0,0,0.12);
  box-shadow: 0 4px 20px rgba(0,0,0,0.18);
}

#music-toggle.playing {
  background: var(--primary);
  color: white;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(74, 93, 78, 0.4); }
  70% { box-shadow: 0 0 0 15px rgba(74, 93, 78, 0); }
  100% { box-shadow: 0 0 0 0 rgba(74, 93, 78, 0); }
}

/* ── Hamburger button (ẩn trên desktop) ──────────────────────────────────────── */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--on-surface);
  font-size: 1.4rem;
  padding: 0.2rem 0.4rem;
  line-height: 1;
  transition: color var(--transition);
}
.menu-toggle:hover { color: var(--primary); }

/* ── Responsive ──────────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  /* Logo ẩn, nhường chỗ cho hamburger */
  .nav__brand { display: none; }

  /* Hamburger hiện, căn trái */
  .menu-toggle { display: flex; align-items: center; position: absolute; left: 2rem; }

  /* Links ẩn mặc định */
  .nav__links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--outline-variant);
    padding: 0.5rem 0;
    box-shadow: 0 8px 24px rgba(0,0,0,.06);
    z-index: 99;
  }

  /* Links hiện khi nav--open */
  .nav.nav--open .nav__links {
    display: flex;
  }

  .nav__links li {
    border-top: 1px solid var(--outline-variant);
  }

  .nav__links a {
    display: block;
    padding: 0.85rem 2rem;
    font-size: 0.9rem;
    letter-spacing: 0.04em;
  }

  .hero { padding: 4rem 0 2rem; }
  .hero__title { font-size: 2.5rem; }
}

/* ═══════════════════════════════════════════════════════════════════════════════
   EXTENSIONS — tất cả classes cho templates còn thiếu
   Design language: Playfair Display (headings) + Inter (body),
   Moss green #4a5d4e / Bronze #8d6e63, airy spacing, minimal borders
   ═══════════════════════════════════════════════════════════════════════════════ */

/* ── Main & Footer ───────────────────────────────────────────────────────────── */
.main { min-height: 70vh; padding: 3rem 0; }

.site-footer {
  border-top: 1px solid var(--outline-variant);
  padding: 2rem 0;
  text-align: center;
  font-size: 0.85rem;
  color: var(--on-surface-variant);
}
.site-footer a { color: var(--on-surface-variant); }
.site-footer a:hover { color: var(--primary); }

/* ── Icon button ─────────────────────────────────────────────────────────────── */
.btn-icon {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.3rem 0.4rem;
  color: var(--on-surface-variant);
  font-size: 1.05rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  transition: color var(--transition);
  line-height: 1;
}
.btn-icon:hover { color: var(--primary); }

/* ── Theme toggle ────────────────────────────────────────────────────────────── */

#theme-toggle {
  background: none;
  border: 1px solid var(--outline-variant);
  border-radius: 50px;
  cursor: pointer;
  padding: 0.3rem 0.65rem;
  color: var(--on-surface-variant);
  font-size: 0.95rem;
  font-family: inherit;
  transition: all var(--transition);
}
#theme-toggle:hover { border-color: var(--primary); color: var(--primary); }

/* ── Logo glow ────────────────────────────────────────────────────────────────── */
.nav__brand { animation: earth-glow 4s ease-in-out infinite; }
.nav__brand:hover { animation-play-state: paused; }

@keyframes earth-glow {
  0%, 100% {
    text-shadow: 0 0 6px rgba(74,93,78,.45), 0 0 16px rgba(141,110,99,.2);
  }
  50% {
    text-shadow: 0 0 9px rgba(74,93,78,.75), 0 0 24px rgba(141,110,99,.35), 0 0 44px rgba(74,93,78,.15);
  }
}

html.dark .nav__brand { animation: sage-glow 4s ease-in-out infinite; }
html.dark .nav__brand:hover { animation-play-state: paused; }

@keyframes sage-glow {
  0%, 100% {
    text-shadow: 0 0 6px rgba(142,182,155,.55), 0 0 18px rgba(179,155,146,.25);
  }
  50% {
    text-shadow: 0 0 9px rgba(142,182,155,.9), 0 0 26px rgba(142,182,155,.45), 0 0 50px rgba(179,155,146,.2);
  }
}

/* ── More link ───────────────────────────────────────────────────────────────── */
.more-link { margin-top: 2.5rem; text-align: center; }

/* ── Page title ──────────────────────────────────────────────────────────────── */
.page-title {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}

.page-subtitle {
  font-size: 1rem;
  color: var(--on-surface-variant);
  font-style: italic;
  margin-bottom: 2rem;
  line-height: 1.6;
}

/* ── Buttons ─────────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.55rem 1.2rem;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 500;
  font-family: var(--font-sans);
  --transition: 200ms ease;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition);
  white-space: nowrap;
  letter-spacing: 0.01em;
  text-decoration: none;
}
.btn:hover { text-decoration: none; opacity: 0.85; }

.btn--primary  { background: var(--primary);       color: #fff;               border-color: var(--primary); }
.btn--outline  { border-color: var(--outline-variant);      color: var(--on-surface);        background: transparent; }
.btn--outline:hover { border-color: var(--primary); color: var(--primary); opacity: 1; }
.btn--ghost    { color: var(--on-surface-variant);         background: transparent;   border-color: transparent; }
.btn--ghost:hover { color: var(--primary); opacity: 1; }
.btn--danger   { background: #b04a3a;             color: #fff;               border-color: #b04a3a; }
.btn--alert    { background: #c47a40;             color: #fff; }
.btn--active   { border-color: var(--primary);     color: var(--primary); }
.btn--full     { width: 100%; justify-content: center; }
.btn--sm       { padding: 0.3rem 0.75rem; font-size: 0.78rem; }

/* ── Alerts ──────────────────────────────────────────────────────────────────── */
.alert {
  padding: 0.9rem 1.1rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  margin-bottom: 1.2rem;
  line-height: 1.5;
}
.alert--success { background: #edf5f0; color: #2d6a47; border: 1px solid #c3ddd0; }
.alert--error   { background: #fdf0ee; color: #8b3a2f; border: 1px solid #e8c4be; }

html.dark .alert--success { background: rgba(142,182,155,.1); color: #8eb69b; border-color: rgba(142,182,155,.25); }
html.dark .alert--error   { background: rgba(176,74,58,.12);  color: #d4867a; border-color: rgba(176,74,58,.3); }

/* ── Forms ───────────────────────────────────────────────────────────────────── */
.form { display: flex; flex-direction: column; gap: 1.2rem; }
.form__group { display: flex; flex-direction: column; gap: 0.4rem; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form__group--wide { grid-column: 1 / -1; }
.form__actions { display: flex; gap: 0.8rem; flex-wrap: wrap; align-items: center; margin-top: 0.5rem; }

label { font-size: 0.85rem; font-weight: 500; color: var(--on-surface); }
.required { color: #b04a3a; }

input[type="text"], input[type="email"], input[type="tel"], input[type="url"],
input[type="password"], input[type="number"], select, textarea {
  background: var(--surface-container-low);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius);
  padding: 0.65rem 0.9rem;
  color: var(--on-surface);
  font-family: var(--font-sans);
  --transition: 200ms ease;
  font-size: 0.95rem;
  width: 100%;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(74,93,78,.1);
}
html.dark input:focus,
html.dark select:focus,
html.dark textarea:focus {
  box-shadow: 0 0 0 3px rgba(142,182,155,.15);
}
select option { background: var(--surface-container-low); color: var(--on-surface); }

.checkbox-item  { display: flex; align-items: center; gap: 0.5rem; cursor: pointer; font-size: 0.9rem; }
.checkbox-group { display: flex; flex-wrap: wrap; gap: 0.6rem; }

/* ── Search ──────────────────────────────────────────────────────────────────── */
.search-form {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}
.search-form input { flex: 1; min-width: 200px; }

/* ── Pagination ──────────────────────────────────────────────────────────────── */
.pagination {
  display: flex;
  align-items: center;
  gap: 1rem;
  justify-content: center;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--outline-variant);
}
.pagination__page { color: var(--on-surface-variant); font-size: 0.88rem; }

/* ── Card body (supplement to card shell above) ──────────────────────────────── */
.card__body { padding: 0.2rem 0; }
.card__cover-link { display: block; }
.card__cover { border-radius: var(--radius); }

.card__excerpt {
  color: var(--on-surface-variant);
  font-size: 0.92rem;
  line-height: 1.65;
  margin-bottom: 0.75rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card__meta {
  font-size: 0.78rem;
  color: var(--on-surface-variant);
  display: flex;
  gap: 0.9rem;
  flex-wrap: wrap;
  margin-bottom: 0.6rem;
}

.card__tags { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 0.5rem; }

/* ── Tags ────────────────────────────────────────────────────────────────────── */
.tag {
  display: inline-block;
  background: var(--primary-container);
  border-radius: 50px;
  padding: 0.15rem 0.65rem;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--primary);
  transition: all var(--transition);
}
.tag:hover { background: var(--primary); color: #fff; }

html.dark .tag {
  background: rgba(142,182,155,.12);
  color: var(--primary);
}
html.dark .tag:hover { background: var(--primary); color: var(--surface); }

.tag--lg { font-size: 0.9rem; padding: 0.3rem 1rem; }
.tag__count { margin-left: 0.25rem; opacity: .55; }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 0.6rem; }

/* ── Utility ─────────────────────────────────────────────────────────────────── */
.empty { color: var(--on-surface-variant); font-style: italic; padding: 3rem 0; text-align: center; }
.text-muted { color: var(--on-surface-variant); }
.view-count { color: var(--on-surface-variant); }
::selection { background: rgba(74,93,78,.2); color: var(--on-surface); }
html.dark ::selection { background: rgba(142,182,155,.25); }

/* ── Scrollbar ───────────────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--outline-variant); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: var(--on-surface-variant); }

/* ── Categories ──────────────────────────────────────────────────────────────── */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.5rem;
}

.category-card {
  display: block;
  background: var(--surface-container-low);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius);
  padding: 1.8rem;
  transition: all 0.3s ease;
}
.category-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary);
  box-shadow: 0 12px 30px rgba(74,93,78,.1);
}
.category-card__name {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
  color: var(--on-surface);
}
.category-card__desc { color: var(--on-surface-variant); font-size: 0.9rem; margin-bottom: 0.8rem; line-height: 1.6; }
.category-card__count { font-size: 0.78rem; color: var(--primary); font-weight: 600; letter-spacing: 0.03em; }

/* ── Post detail ─────────────────────────────────────────────────────────────── */
.post { padding-bottom: 4rem; }

.post__header { margin-bottom: 2.5rem; }

.post__category {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--secondary);
  margin-bottom: 0.7rem;
}

.post__title {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 5vw, 2.8rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.post__meta {
  font-size: 0.83rem;
  color: var(--on-surface-variant);
  display: flex;
  gap: 1.2rem;
  flex-wrap: wrap;
  margin-bottom: 0.8rem;
}

.post__tags { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 1rem; }

.post__cover {
  width: 100%;
  max-height: 480px;
  object-fit: cover;
  border-radius: var(--radius);
  margin-top: 1.5rem;
}

.post__progress {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  background: var(--primary);
  width: 0%;
  z-index: 200;
  transition: width .1s linear;
}

/* ── Prose ───────────────────────────────────────────────────────────────────── */
.prose { font-size: 1.05rem; line-height: 1.85; }

.prose h2, .prose h3, .prose h4 {
  font-family: var(--font-serif);
  margin: 2em 0 0.7em;
  letter-spacing: -0.02em;
}
.prose h2 { font-size: 1.6rem; }
.prose h3 { font-size: 1.25rem; }

.prose p { margin-bottom: 1.4em; }
.prose ul, .prose ol { padding-left: 1.5rem; margin-bottom: 1.4em; }
.prose li { margin-bottom: 0.5em; }

.prose blockquote {
  border-left: 3px solid var(--secondary);
  padding: 0.5rem 1.5rem;
  margin: 2em 0;
  color: var(--on-surface-variant);
  font-style: italic;
  font-size: 1.05em;
}

.prose pre {
  background: var(--surface-container-low);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius);
  padding: 1.2rem 1.4rem;
  overflow-x: auto;
  font-size: 0.875rem;
  margin-bottom: 1.4em;
  line-height: 1.65;
}
.prose code {
  background: var(--surface-container-low);
  padding: 0.15em 0.45em;
  border-radius: 4px;
  font-size: 0.875em;
  color: var(--secondary);
}
.prose pre code { background: none; padding: 0; color: var(--on-surface); }

.prose table { width: 100%; border-collapse: collapse; margin-bottom: 1.4em; font-size: 0.92rem; }
.prose th, .prose td { border: 1px solid var(--outline-variant); padding: 0.6rem 0.9rem; }
.prose th { background: var(--surface-container-low); font-weight: 600; color: var(--on-surface-variant); }
.prose img { border-radius: var(--radius); margin: 1.5em 0; }
.prose a { color: var(--primary); text-decoration: underline; text-decoration-color: rgba(74,93,78,.3); }
.prose a:hover { text-decoration-color: var(--primary); }
.prose del { color: var(--on-surface-variant); }
.prose hr { border: none; border-top: 1px solid var(--outline-variant); margin: 2.5em 0; }

.post__nav {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--outline-variant);
}
.post__nav-link { max-width: 45%; font-size: 0.88rem; color: var(--on-surface-variant); line-height: 1.5; }
.post__nav-link--next { text-align: right; margin-left: auto; }

/* ── Post interactions ───────────────────────────────────────────────────────── */
.post__share,
.post__reactions,
.post__bookmark {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 2rem 0;
  padding: 1.2rem 1.5rem;
  background: var(--surface-container-low);
  border-radius: var(--radius);
}

.post__share-label,
.post__reactions-label {
  font-size: 0.82rem;
  color: var(--on-surface-variant);
  flex-shrink: 0;
}

.post__share a,
.post__share button {
  font-size: 1.1rem;
}

/* Reaction buttons */
.reaction-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--outline-variant);
  border-radius: 2rem;
  background: var(--surface-container);
  color: var(--on-surface);
  font-size: 1rem;
  cursor: pointer;
  transition: background var(--transition), transform 0.1s;
}
.reaction-btn:hover:not(.reaction-btn--done) {
  background: var(--surface-container-high);
  transform: scale(1.05);
}
.reaction-btn--done {
  background: var(--primary-container, #e8d5f0);
  border-color: var(--primary);
  cursor: default;
}
.reaction-count { font-size: 0.85rem; }

/* Bookmark */
.post__bookmark-btn { transition: background var(--transition); }
.post__bookmark-btn--saved { background: var(--primary-container, #e8d5f0); border-color: var(--primary); }

/* Comments */
.post__comments {
  margin-top: 3rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--outline-variant);
}
.post__comments-title { font-size: 1.3rem; margin-bottom: 1.5rem; }
.post__comments-empty { color: var(--on-surface-variant); font-style: italic; }

.comment-list { display: flex; flex-direction: column; gap: 1.2rem; margin-bottom: 2.5rem; }
.comment {
  padding: 1.2rem 1.5rem;
  background: var(--surface-container-low);
  border-radius: var(--radius);
  border-left: 3px solid var(--outline-variant);
}
.comment__header { display: flex; align-items: baseline; gap: 0.8rem; margin-bottom: 0.5rem; }
.comment__author { font-size: 0.9rem; }
.comment__time { font-size: 0.78rem; color: var(--on-surface-variant); }
.comment__body { margin: 0; font-size: 0.92rem; line-height: 1.65; white-space: pre-wrap; }

.comment-form { margin-top: 1.5rem; }
.comment-form__title { font-size: 1.05rem; margin-bottom: 1rem; }
.comment-form__row { display: flex; gap: 0.75rem; margin-bottom: 0.75rem; }
.comment-form__input,
.comment-form__textarea {
  width: 100%;
  padding: 0.6rem 0.9rem;
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius);
  background: var(--surface-container-low);
  color: var(--on-surface);
  font-size: 0.9rem;
  font-family: inherit;
}
.comment-form__textarea { resize: vertical; }
.comment-form__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 0.75rem;
}
.comment-form__note { font-size: 0.78rem; color: var(--on-surface-variant); }
.comment-form__msg { margin-top: 0.75rem; font-size: 0.88rem; padding: 0.6rem 0.9rem; border-radius: var(--radius); }
.comment-form__msg--ok { background: #d4edda; color: #155724; }
.comment-form__msg--err { background: #f8d7da; color: #721c24; }

/* ── Testimonials ────────────────────────────────────────────────────────────── */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

.testimonial {
  background: var(--surface-container-low);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius);
  padding: 1.8rem;
  position: relative;
}
.testimonial::before {
  content: '\201C';
  font-family: var(--font-serif);
  font-size: 4rem;
  color: var(--primary-container);
  position: absolute;
  top: 0.5rem; left: 1.2rem;
  line-height: 1;
}
html.dark .testimonial::before { color: rgba(142,182,155,.15); }

.testimonial__content {
  font-style: italic;
  line-height: 1.75;
  margin-bottom: 1.2rem;
  padding-top: 1rem;
  color: var(--on-surface);
}

.testimonial__footer { font-size: 0.88rem; color: var(--on-surface-variant); }
.testimonial__footer strong { color: var(--on-surface); display: block; margin-bottom: 0.2rem; font-style: normal; }
.testimonial__title { display: block; font-size: 0.82rem; margin-bottom: 0.3rem; }
.testimonial__service {
  display: inline-block;
  margin-top: 0.4rem;
  background: var(--primary-container);
  color: var(--primary);
  border-radius: 50px;
  padding: 0.1rem 0.6rem;
  font-size: 0.75rem;
  font-weight: 500;
}
html.dark .testimonial__service {
  background: rgba(142,182,155,.12);
  color: var(--primary);
}

/* ── Auth page ───────────────────────────────────────────────────────────────── */
.auth-page { max-width: 420px; padding: 3rem 0; }
.auth-page h1 {
  font-family: var(--font-serif);
  font-size: 2rem;
  margin-bottom: 1.5rem;
}

.auth-divider {
  text-align: center;
  color: var(--on-surface-variant);
  font-size: 0.83rem;
  margin: 1.2rem 0;
  position: relative;
}
.auth-divider::before, .auth-divider::after {
  content: '';
  position: absolute;
  top: 50%; width: 40%; height: 1px;
  background: var(--outline-variant);
}
.auth-divider::before { left: 0; }
.auth-divider::after  { right: 0; }

/* ── Contact page ────────────────────────────────────────────────────────────── */
.contact-page { max-width: 640px; }

.contact-intro {
  color: var(--on-surface-variant);
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: 2.5rem;
}

.contact-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 2.5rem;
  margin-bottom: 2.5rem;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.2rem 1.4rem;
  background: var(--surface-container-low);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius);
  transition: all var(--transition);
  color: var(--on-surface);
}
.contact-item:hover {
  border-color: var(--primary);
  transform: translateX(4px);
  text-decoration: none;
}

.contact-item__icon {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--primary-container);
  color: var(--primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}
html.dark .contact-item__icon { background: rgba(142,182,155,.12); }

.contact-item__label { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--on-surface-variant); margin-bottom: 0.15rem; }
.contact-item__value { font-weight: 500; font-size: 0.95rem; }

/* ── Admin layout ────────────────────────────────────────────────────────────── */
.admin-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  min-height: 100vh;
  background: var(--surface);
}

.admin-sidebar {
  background: var(--surface-container-low);
  border-right: 1px solid var(--outline-variant);
  padding: 1.5rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.admin-sidebar__brand {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--on-surface-variant);
  padding: 0 0.5rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.admin-nav { display: flex; flex-direction: column; gap: 0.15rem; flex: 1; }

.admin-nav a {
  display: block;
  padding: 0.5rem 0.8rem;
  border-radius: var(--radius);
  font-size: 0.88rem;
  color: var(--on-surface-variant);
  transition: all 0.15s ease;
}
.admin-nav a:hover { background: var(--surface); color: var(--on-surface); text-decoration: none; }
.admin-nav a.active { background: var(--primary-container); color: var(--primary); font-weight: 500; }
html.dark .admin-nav a.active { background: rgba(142,182,155,.12); color: var(--primary); }

.admin-sidebar__logout { padding-top: 1rem; border-top: 1px solid var(--outline-variant); }

.admin-content { padding: 2.5rem; overflow-y: auto; }

.admin-header {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 0.8rem; margin-bottom: 1.8rem;
}
.admin-header h1 { font-family: var(--font-serif); font-size: 1.6rem; margin: 0; }

.admin-filter { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-bottom: 1.5rem; }
.admin-filter input { flex: 1; min-width: 200px; }

.admin-form { max-width: 800px; }

/* Admin table */
.admin-table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.admin-table th, .admin-table td {
  text-align: left;
  padding: 0.7rem 0.9rem;
  border-bottom: 1px solid var(--outline-variant);
}
.admin-table th {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--on-surface-variant);
  background: var(--surface-container-low);
}
.admin-table tr:hover td { background: rgba(74,93,78,.04); }
html.dark .admin-table tr:hover td { background: rgba(142,182,155,.05); }
.admin-table td.actions { display: flex; gap: 0.4rem; flex-wrap: wrap; }

/* Stats */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}
.stat {
  background: var(--surface-container-low);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius);
  padding: 1.2rem;
  display: flex; flex-direction: column; gap: 0.3rem;
}
.stat--alert { border-color: rgba(196,122,64,.5); }
.stat__value { font-size: 1.9rem; font-weight: 700; color: var(--primary); font-family: var(--font-serif); }
.stat__label { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--on-surface-variant); }

.quick-actions { display: flex; gap: 0.8rem; flex-wrap: wrap; }

/* Badges */
.badge {
  display: inline-block;
  padding: 0.15rem 0.55rem;
  border-radius: 50px;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.03em;
}
.badge--green { background: #edf5f0; color: #2d6a47; border: 1px solid #c3ddd0; }
.badge--gray  { background: var(--surface-container-low); color: var(--on-surface-variant); border: 1px solid var(--outline-variant); }
.badge--alert { background: #fdf3e7; color: #8b5a1a; border: 1px solid #e8d0a8; }

html.dark .badge--green { background: rgba(142,182,155,.12); color: #8eb69b; border-color: rgba(142,182,155,.25); }
html.dark .badge--alert { background: rgba(196,122,64,.12);  color: #c47a40; border-color: rgba(196,122,64,.25); }

/* Editor */
.editor-toolbar { margin-bottom: 0.5rem; display: flex; gap: 0.4rem; }

/* Media grid */
.media-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 1rem;
}
.media-item {
  background: var(--surface-container-low);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.2s ease;
}
.media-item:hover { border-color: var(--primary); }
.media-thumb { width: 100%; height: 120px; object-fit: cover; border-radius: 0; }
.media-info  { padding: 0.7rem; font-size: 0.78rem; display: flex; flex-direction: column; gap: 0.25rem; }
.media-filename { font-weight: 500; word-break: break-all; }
.media-size, .media-type { color: var(--on-surface-variant); }

/* Inquiries */
.inquiries-list { display: flex; flex-direction: column; gap: 0.8rem; }
.inquiry {
  background: var(--surface-container-low);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.2s ease;
}
.inquiry--unread { border-left: 3px solid var(--primary); }
.inquiry__summary {
  padding: 0.9rem 1.2rem;
  cursor: pointer;
  display: flex; align-items: center; gap: 1rem; flex-wrap: wrap;
  list-style: none;
}
.inquiry__summary::-webkit-details-marker { display: none; }
.inquiry__name  { font-weight: 600; }
.inquiry__type  { color: var(--on-surface-variant); font-size: 0.83rem; }
.inquiry__time  { color: var(--on-surface-variant); font-size: 0.78rem; margin-left: auto; }
.inquiry__body  { padding: 1rem 1.2rem; border-top: 1px solid var(--outline-variant); }
.inquiry__body p { margin-bottom: 0.6rem; }
.inquiry__body blockquote {
  border-left: 2px solid var(--primary-container);
  padding-left: 1rem; font-style: italic; color: var(--on-surface-variant);
}
.inquiry__actions { margin-top: 0.8rem; display: flex; gap: 0.5rem; }

/* ── Responsive ──────────────────────────────────────────────────────────────── */
@media (max-width: 640px) {
  .admin-layout { grid-template-columns: 1fr; }
  .admin-sidebar { display: none; }
  .form__row { grid-template-columns: 1fr; }
  .post__nav { flex-direction: column; }
  .post__nav-link { max-width: 100%; }
}

/* ── Code syntax highlighting ─────────────────────────────────── */
.prose pre {
  background: var(--surface-container-low);
  padding: 1.5rem;
  margin: 1.5rem 0;
  overflow-x: auto;
  border-radius: var(--radius);
  position: relative;
}
.prose pre code {
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--on-surface);
}
.prose code {
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.875em;
  background: var(--surface-container-low);
  padding: 0.12em 0.35em;
  border-radius: 3px;
}

/* Copy code button */
.copy-btn {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--on-surface-variant);
  background: var(--surface);
  border: 1px solid var(--outline-variant);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  cursor: pointer;
  transition: opacity var(--transition);
}
.copy-btn:hover { opacity: 0.7; }

/* ── Search overlay ─────────────────────────────────────────── */
.search-overlay {
  display: flex;
  position: fixed;
  inset: 0;
  z-index: 300;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(6px);
  align-items: flex-start;
  justify-content: center;
  padding-top: 8rem;
}
.search-overlay[hidden] { display: none; }
.search-overlay-inner {
  width: 100%;
  max-width: 36rem;
  padding: 0 1.5rem;
}
.search-overlay-form {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--surface);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.4);
}
.search-overlay-form input[type="search"] {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  box-shadow: none;
  font-size: 1.125rem;
  font-family: inherit;
  color: var(--on-surface);
  min-width: 0;
}
.search-overlay-form input[type="search"]:focus {
  box-shadow: none;
}
.search-overlay-form input[type="search"]::placeholder {
  color: var(--on-surface-variant);
  opacity: 0.6;
}

/* ── Nav viewer name ─────────────────────────────────────────────────────────── */
.nav__user-btn {
  font-size: 1.1rem;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--on-surface-variant);
  padding: 0.25rem 0.35rem;
  border-radius: var(--radius);
  transition: color var(--transition);
}
.nav__user-btn:hover { color: var(--primary); }

/* ── User account popover ────────────────────────────────────────────────────── */
.user-popover {
  position: absolute;
  top: calc(100% + 0.5rem);
  right: 0;
  width: max-content;
  background: var(--surface-container-low);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius);
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
  padding: 0.4rem 0;
  z-index: 200;
  display: flex;
  flex-direction: column;
}
.user-popover__item {
  display: block;
  width: 100%;
  padding: 0.6rem 1rem;
  font-size: 0.88rem;
  color: var(--on-surface);
  text-decoration: none;
  background: none;
  border: none;
  text-align: left;
  cursor: pointer;
  font-family: inherit;
  transition: background var(--transition);
}
.user-popover__item:hover { background: var(--surface-container); }
.user-popover__logout { margin: 0; padding: 0; }
.user-popover[hidden] { display: none; }

/* ── Login popover ───────────────────────────────────────────────────────────── */
.nav__login-wrap { position: relative; }

.login-popover {
  position: absolute;
  top: calc(100% + 0.5rem);
  right: 0;
  width: 280px;
  background: var(--surface-container-low);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius);
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
  padding: 1.25rem;
  z-index: 200;
}
.login-popover__title {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.85rem;
  color: var(--on-surface);
}
.login-popover__form { display: flex; flex-direction: column; gap: 0.55rem; }
.login-popover__input {
  width: 100%;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius);
  background: var(--surface-container);
  color: var(--on-surface);
  font-size: 0.88rem;
  font-family: inherit;
}
.login-popover__input:focus { outline: none; border-color: var(--primary); }
.login-popover__error {
  font-size: 0.8rem;
  color: #c0392b;
  padding: 0.3rem 0;
}
.login-popover__divider {
  text-align: center;
  font-size: 0.78rem;
  color: var(--on-surface-variant);
  margin: 0.75rem 0;
  position: relative;
}
.login-popover__divider::before,
.login-popover__divider::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 38%;
  height: 1px;
  background: var(--outline-variant);
}
.login-popover__divider::before { left: 0; }
.login-popover__divider::after  { right: 0; }
.login-popover__oauth { display: flex; flex-direction: column; gap: 0.5rem; }
.login-popover__oauth .btn { font-size: 0.82rem; padding: 0.4rem 0.75rem; }

/* ── Reader header (bookmarks page) ─────────────────────────────────────────── */
.reader-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2rem;
}
.reader-header .page-title { margin-bottom: 0; }
.reader-header__user { display: flex; align-items: center; gap: 0.75rem; }
.reader-header__name { font-size: 0.88rem; color: var(--on-surface-variant); }

/* ── Reader login ────────────────────────────────────────────────────────────── */
.reader-login {
  display: flex;
  justify-content: center;
  padding: 4rem 1rem;
}
.reader-login__card {
  width: 100%;
  max-width: 400px;
  background: var(--surface-container-low);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius);
  padding: 2.5rem 2rem;
  text-align: center;
}
.reader-login__title { font-size: 1.6rem; margin-bottom: 0.5rem; }
.reader-login__desc { color: var(--on-surface-variant); font-size: 0.9rem; margin-bottom: 2rem; }
.reader-login__actions { display: flex; flex-direction: column; gap: 0.75rem; }
.reader-login__btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
}
.reader-login__btn-icon { font-weight: 700; font-size: 1rem; width: 1.5rem; }
.reader-login__unavailable { color: var(--on-surface-variant); font-size: 0.88rem; }
.reader-login__back { margin-top: 1.5rem; font-size: 0.85rem; color: var(--on-surface-variant); }