/* ===== FULL STYLE.CSS - FIXED MOBILE BRAND + NOVELSPACE UI ===== */
:root {
  --bg: #f5f1ea;
  --card: #ffffff;
  --surface: #faf6f1;
  --surface-hover: #f2e5d8;
  --primary: #8a3d2f;
  --primary-dark: #6d2d22;
  --accent: #d9b48f;
  --text: #2d2d2d;
  --muted: #777;
  --border: #e7ddd2;
  --tag: #f4ebe3;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
  --radius: 16px;
  --reader-width: 860px;
}

body.theme-dark {
  --bg: #181818;
  --card: #1f1f1f;
  --surface: #2b2b2b;
  --surface-hover: #383838;
  --text: #e8e8e8;
  --muted: #aaa;
  --border: #3a3a3a;
  --tag: #2a2a2a;
}

body.theme-sepia {
  --bg: #eadfcf;
  --card: #f5ecd9;
  --surface: #ede0c8;
  --surface-hover: #e4d5b5;
  --text: #3d342b;
  --muted: #7a6a58;
  --border: #d4c4aa;
  --tag: #efe3d2;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: Arial, Helvetica, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  outline: none;
}

a {
  text-decoration: none;
  color: inherit;
}

img {
  display: block;
  max-width: 100%;
}

/* ===== TOPBAR ===== */
.topbar {
  background: linear-gradient(180deg, #9b4b3b, #7a3428);
  color: #fff;
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 100;
  transition:
    transform 0.3s ease,
    opacity 0.3s ease,
    box-shadow 0.3s ease,
    background 0.3s ease;
  will-change: transform, opacity;
}

.topbar-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 20px;
  flex-wrap: wrap;
  position: relative;
  transition:
    padding 0.28s ease,
    gap 0.28s ease,
    min-height 0.28s ease;
}

/* ===== BRAND LOGO TEXT ===== */
.brand {
  font-family: "Georgia", "Times New Roman", serif;
  font-size: 34px;
  font-weight: 700;
  letter-spacing: 0.6px;
  min-width: auto;
  cursor: pointer;
  font-style: italic;
  line-height: 1;
  position: relative;
  display: flex;
  align-items: center;
  flex-shrink: 1;
  white-space: nowrap;

  background: linear-gradient(135deg, #fff4df 0%, #f7d7ac 35%, #fffaf2 55%, #d9ab72 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: transparent;

  text-shadow:
    0 1px 0 rgba(255, 248, 235, 0.35),
    0 2px 8px rgba(0, 0, 0, 0.18),
    0 0 14px rgba(240, 200, 150, 0.18);

  transition:
    transform 0.28s ease,
    filter 0.28s ease,
    text-shadow 0.28s ease;
}

.brand::after {
  content: "";
  position: absolute;
  left: 8px;
  right: 8px;
  bottom: -8px;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(247, 215, 172, 0.95) 20%,
    rgba(255, 244, 223, 1) 50%,
    rgba(217, 171, 114, 0.95) 80%,
    transparent 100%
  );
  opacity: 0.9;
  transform: scaleX(0.92);
  transform-origin: center;
  transition: transform 0.28s ease, opacity 0.28s ease;
}

.brand:hover {
  transform: scale(1.045);
  filter: brightness(1.04);
  text-shadow:
    0 1px 0 rgba(255, 248, 235, 0.45),
    0 4px 12px rgba(0, 0, 0, 0.22),
    0 0 18px rgba(240, 200, 150, 0.28);
}

.brand:hover::after {
  transform: scaleX(1);
  opacity: 1;
}

/* ===== MOBILE TOPBAR BUTTONS ===== */
.topbar-actions-mobile {
  display: none;
  margin-left: auto;
  align-items: center;
  gap: 14px;
}

.icon-btn {
  width: 56px;
  height: 56px;
  border: none;
  border-radius: 16px;
  background: transparent;
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition:
    transform 0.2s ease,
    opacity 0.2s ease,
    background 0.2s ease;
  padding: 0;
  flex: 0 0 56px;
}

.icon-btn:hover {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.08);
}

.icon-btn:active {
  transform: scale(0.97);
}

.icon-btn.active {
  background: rgba(255, 255, 255, 0.12);
}

.icon-btn svg {
  width: 32px;
  height: 32px;
  display: block;
  pointer-events: none;
}

.mobile-only {
  display: none;
}

/* ===== SEARCH + NAV ===== */
.search-wrap {
  flex: 1;
  min-width: 240px;
  display: flex;
  gap: 10px;
  transition:
    opacity 0.22s ease,
    transform 0.22s ease,
    max-height 0.22s ease,
    margin 0.22s ease;
}

.search-wrap input {
  flex: 1;
  border: none;
  border-radius: 999px;
  padding: 12px 16px;
  outline: none;
}

.search-wrap button,
.ghost-btn,
.solid-btn,
.chip-btn,
.page-btn,
.chapter-chip,
.mobile-nav-parent,
.mobile-subitem {
  border: none;
  cursor: pointer;
  transition:
    transform 0.2s ease,
    opacity 0.2s ease,
    box-shadow 0.2s ease,
    background 0.2s ease;
}

.search-wrap button,
.solid-btn {
  background: #fff;
  color: var(--primary-dark);
  padding: 12px 18px;
  border-radius: 999px;
  font-weight: 700;
}

.search-wrap button:hover,
.solid-btn:hover,
.ghost-btn:hover,
.chip-btn:hover,
.page-btn:hover,
.chapter-chip:hover {
  transform: translateY(-1px);
}

.nav {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  transition:
    opacity 0.22s ease,
    transform 0.22s ease,
    max-height 0.22s ease,
    margin 0.22s ease;
}

.nav > a {
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
  font-size: 14px;
  transition: background 0.2s ease, transform 0.2s ease;
}

.nav > a:hover {
  background: rgba(255, 255, 255, 0.22);
  transform: translateY(-1px);
}

.mobile-nav-group,
.mobile-nav-parent,
.mobile-submenu,
.mobile-subitem,
.mobile-nav-arrow {
  display: none;
}

/* ===== READER MOBILE TOPBAR EFFECT ===== */
body.reader-mobile .topbar {
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

body.reader-mobile.topbar-compact .topbar {
  transform: translateY(0);
  opacity: 1;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

body.reader-mobile.topbar-compact .topbar-inner {
  padding: 8px 14px;
  gap: 8px;
  min-height: 52px;
  align-items: center;
}

body.reader-mobile.topbar-compact .brand {
  font-size: 20px;
  min-width: auto;
  transform: translateY(0);
}

body.reader-mobile.topbar-compact .brand::after {
  bottom: -4px;
}

body.reader-mobile.topbar-compact .search-wrap,
body.reader-mobile.topbar-compact .nav {
  opacity: 0;
  transform: translateY(-8px);
  pointer-events: none;
  max-height: 0;
  overflow: hidden;
  margin: 0;
}

body.reader-mobile.topbar-hidden .topbar {
  transform: translateY(-110%);
  opacity: 0;
  pointer-events: none;
}

/* ===== LAYOUT ===== */
.layout {
  max-width: 1280px;
  margin: 24px auto;
  padding: 0 20px 30px;
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 24px;
}

.sidebar,
.panel,
.reader-panel,
.floating-tools {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.sidebar {
  padding: 18px;
  height: fit-content;
  position: sticky;
  top: 92px;
}

.sidebar-block + .sidebar-block {
  margin-top: 22px;
}

.section-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--primary-dark);
}

.section-title-main {
  margin-bottom: 18px;
}

.menu-list,
.ranking-list {
  list-style: none;
  display: grid;
  gap: 10px;
}

.menu-list li a,
.ranking-list li {
  display: block;
  padding: 10px 12px;
  border-radius: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  cursor: pointer;
  transition: background 0.2s ease;
}

.menu-list li a:hover,
.ranking-list li:hover {
  background: var(--surface-hover);
}

/* ===== CONTENT ===== */
.content {
  display: grid;
  gap: 24px;
}

.hero {
  padding: 22px;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 18px;
  align-items: center;
}

.hero-copy h1 {
  font-size: 34px;
  line-height: 1.2;
  margin-bottom: 10px;
  color: var(--primary-dark);
}

.hero-copy p {
  color: var(--muted);
  margin-bottom: 18px;
}

.hero-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.ghost-btn {
  background: #fff5ee;
  color: var(--primary-dark);
  padding: 12px 18px;
  border-radius: 999px;
  border: 1px solid #f0d7c5;
  font-weight: 700;
}

.hero-card {
  background: linear-gradient(135deg, #f8ecdf, #f2d8c0);
  border-radius: 20px;
  padding: 20px;
  min-height: 220px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.hero-badge {
  display: inline-block;
  width: fit-content;
  background: rgba(138, 61, 47, 0.12);
  color: var(--primary-dark);
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
}

.hero-book {
  margin-top: 16px;
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 14px;
  align-items: center;
}

.hero-book h3 {
  color: var(--primary-dark);
  margin-bottom: 8px;
}

.hero-book p {
  color: #5b4d47;
  font-size: 14px;
}

.cover {
  width: 90px;
  height: 120px;
  border-radius: 12px;
  object-fit: cover;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.12);
}

.cover-hero {
  width: 90px;
  height: 120px;
}

/* ===== TOOLBAR ===== */
.toolbar {
  padding: 16px 18px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  align-items: center;
}

.filters {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

.filters select,
.filters input {
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  outline: none;
}

.chip-group {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.chip-btn {
  background: var(--surface);
  color: var(--primary-dark);
  padding: 9px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  font-size: 14px;
}

.chip-btn.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* ===== BOOKS ===== */
.books-panel {
  padding: 18px;
}

.books-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.book-card {
  position: relative;
  border: 1px solid var(--border);
  border-radius: 18px;
  overflow: hidden;
  background: var(--card);
  cursor: pointer;
  transition:
    transform 0.3s cubic-bezier(.4, 0, .2, 1),
    box-shadow 0.3s cubic-bezier(.4, 0, .2, 1);
  display: flex;
  flex-direction: column;
}

.book-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
}

.book-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.15), transparent);
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}

.book-card:hover::after {
  opacity: 1;
}

.book-thumb {
  width: 100%;
  height: 260px;
  object-fit: cover;
  background: #eadfce;
  transition: transform 0.4s ease;
}

.book-card:hover .book-thumb {
  transform: scale(1.05);
}

.book-body {
  padding: 16px;
  display: grid;
  gap: 10px;
  flex: 1;
}

.book-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary-dark);
  line-height: 1.3;
}

.book-meta {
  font-size: 14px;
  color: var(--muted);
}

.tags,
.reader-book-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.tag {
  background: var(--tag);
  color: var(--primary-dark);
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 12px;
  border: 1px solid #ead9c8;
}

.book-desc,
.reader-book-desc {
  font-size: 14px;
  color: var(--muted);
}

.book-actions {
  display: flex;
  gap: 10px;
  margin-top: auto;
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.3s, transform 0.3s;
}

.book-actions button {
  flex: 1;
  padding: 11px 12px;
  border-radius: 12px;
  border: none;
  cursor: pointer;
  font-weight: 700;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    background 0.2s ease;
}

.book-actions button:hover {
  transform: translateY(-1px);
}

.read-btn {
  background: var(--primary);
  color: #fff;
}

.read-btn:hover {
  box-shadow: 0 8px 18px rgba(138, 61, 47, 0.25);
}

.save-btn {
  background: var(--surface);
  color: var(--primary-dark);
  border: 1px solid var(--border);
}

.save-btn.saved {
  background: linear-gradient(135deg, #ff6b6b, #ff3d3d);
  color: #fff;
  border: none;
  box-shadow: 0 8px 18px rgba(255, 61, 61, 0.25);
}

.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 22px;
}

.page-btn {
  background: var(--surface);
  color: var(--primary-dark);
  border: 1px solid var(--border);
  min-width: 42px;
  height: 42px;
  border-radius: 12px;
  font-weight: 700;
}

.page-btn.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* ===== READER ===== */
.reader-shell {
  display: none;
  padding: 0 20px 40px;
  max-width: calc(var(--reader-width) + 220px);
  margin: 0 auto;
  gap: 18px;
  grid-template-columns: 1fr 180px;
}

.reader-shell.active {
  display: grid;
}

.reader-panel {
  padding: 26px 30px 30px;
  max-width: var(--reader-width);
  margin: 24px auto 0;
}

.reader-top {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.reader-title {
  font-size: 30px;
  color: var(--primary-dark);
  line-height: 1.25;
}

.reader-sub {
  color: var(--muted);
  margin-top: 6px;
}

.reader-book-header {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 18px;
  margin-bottom: 20px;
  align-items: start;
}

.reader-cover {
  width: 140px;
  height: 190px;
  border-radius: 14px;
  object-fit: cover;
  background: #eadfce;
}

.reader-book-author {
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 10px;
}

.reader-controls {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 22px;
  padding: 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
}

.reader-controls label {
  font-size: 14px;
  color: var(--muted);
  display: grid;
  gap: 6px;
  min-width: 170px;
}

.reader-controls select,
.reader-controls input[type="range"] {
  width: 100%;
}

.reader-controls select {
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
}

.chapter-list-wrap {
  margin-bottom: 20px;
}

.chapter-list-head {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.chapter-list-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--primary-dark);
}

.chapter-list-tools {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-left: auto;
}

.chapter-select {
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  outline: none;
}

.chapter-list {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.chapter-chip {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  padding: 8px 12px;
  border-radius: 999px;
  cursor: pointer;
}

.chapter-chip.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.reader-body {
  font-size: 20px;
  line-height: 1.95;
  word-break: break-word;
}

.reader-body p + p {
  margin-top: 18px;
}

.reader-footer {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 30px;
}

/* ===== FLOATING TOOLS ===== */
.floating-tools {
  padding: 16px;
  height: fit-content;
  position: sticky;
  top: 90px;
  margin-top: 24px;
}

.floating-tools button {
  width: 100%;
  border: none;
  border-radius: 12px;
  background: var(--surface);
  color: var(--primary-dark);
  padding: 12px;
  cursor: pointer;
  font-weight: 700;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    background 0.2s ease;
}

.floating-tools button:hover {
  transform: translateY(-1px);
}

.floating-tools button + button {
  margin-top: 10px;
}

#saveShelfBtn.saved {
  background: linear-gradient(135deg, #ff6b6b, #ff3d3d);
  color: #fff;
  box-shadow: 0 8px 20px rgba(255, 61, 61, 0.35);
  animation: popSave 0.28s ease;
}

#saveShelfBtn.saved:hover {
  box-shadow: 0 10px 24px rgba(255, 61, 61, 0.4);
}

.muted-note {
  color: var(--muted);
  font-size: 13px;
  margin-top: 12px;
}

.hidden {
  display: none !important;
}

.empty-state {
  grid-column: 1 / -1;
  padding: 30px;
  border: 1px dashed var(--border);
  border-radius: 18px;
  text-align: center;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.4);
}

.reading-progress {
  font-size: 13px;
  color: var(--primary-dark);
  background: #f8efe7;
  border: 1px solid #eedccd;
  border-radius: 10px;
  padding: 8px 10px;
}

.continue-btn {
  background: #fff4db;
  color: #7a4b00;
  border: 1px solid #f1d39a;
}

.continue-btn:hover {
  box-shadow: 0 8px 18px rgba(241, 211, 154, 0.35);
}

/* ===== ANIMATION ===== */
@keyframes popSave {
  0% { transform: scale(1); }
  50% { transform: scale(1.06); }
  100% { transform: scale(1); }
}

/* ===== DESKTOP HOVER ===== */
@media (hover: hover) {
  .book-actions {
    opacity: 0;
    transform: translateY(10px);
  }

  .book-card:hover .book-actions {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== DESKTOP OVERRIDES ===== */
@media (min-width: 641px) {
  body.reader-mobile.topbar-hidden .topbar,
  body.reader-mobile.topbar-compact .topbar {
    transform: none;
    opacity: 1;
    pointer-events: auto;
  }

  body.reader-mobile.topbar-compact .topbar-inner {
    padding: 14px 20px;
    gap: 16px;
    min-height: auto;
  }

  body.reader-mobile.topbar-compact .brand {
    font-size: 28px;
    min-width: auto;
  }

  body.reader-mobile.topbar-compact .brand::after {
    bottom: -6px;
  }

  body.reader-mobile.topbar-compact .search-wrap,
  body.reader-mobile.topbar-compact .nav {
    opacity: 1;
    transform: none;
    pointer-events: auto;
    max-height: none;
    overflow: visible;
  }

  .mobile-nav-group,
  .mobile-nav-parent,
  .mobile-submenu,
  .mobile-subitem,
  .mobile-nav-arrow {
    display: none !important;
  }
}

/* ===== TABLET ===== */
@media (max-width: 1100px) {
  .books-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .reader-shell,
  .reader-shell.active {
    grid-template-columns: 1fr;
  }

  .floating-tools {
    position: static;
  }
}

@media (max-width: 900px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
  }

  .reader-book-header {
    grid-template-columns: 1fr;
  }
}

/* ===== MOBILE ===== */
@media (max-width: 640px) {
  .books-grid {
    grid-template-columns: 1fr;
  }

  .topbar {
    background: linear-gradient(180deg, #9b4b3b, #7a3428);
  }

  .topbar-inner {
    padding: 16px 18px 10px;
    gap: 10px;
    align-items: center;
  }

  .brand {
    font-size: 24px;
    letter-spacing: 0.3px;
    max-width: calc(100vw - 170px);
    min-width: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1;
  }

  .brand::after {
    left: 4px;
    right: 4px;
    bottom: -5px;
    height: 2px;
  }

  .hero-copy h1 {
    font-size: 28px;
  }

  .reader-panel {
    padding: 20px 18px 24px;
  }

  .reader-body {
    font-size: 18px;
  }

  .book-actions {
    opacity: 1 !important;
    transform: none !important;
  }

  .mobile-only {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .topbar-actions-mobile {
    display: flex;
    margin-left: auto;
    gap: 8px;
    align-items: center;
  }

  .icon-btn {
    width: 52px;
    height: 52px;
    border-radius: 16px;
    background: transparent;
    flex: 0 0 52px;
  }

  .icon-btn svg {
    width: 30px;
    height: 30px;
    stroke-width: 2.1;
  }

  .search-wrap {
    display: none;
    width: 100%;
    min-width: 100%;
    order: 3;
    margin-top: 8px;
    padding: 8px 0 2px;
  }

  .search-wrap input {
    min-width: 0;
    background: rgba(255, 255, 255, 0.96);
  }

  .search-wrap button {
    white-space: nowrap;
  }

  .nav {
    display: none;
    position: absolute;
    top: calc(100% - 2px);
    right: 18px;
    width: min(260px, calc(100vw - 36px));
    order: 4;
    flex-direction: column;
    gap: 0;
    margin-top: 10px;
    padding: 10px 14px;
    border-radius: 18px;
    background: linear-gradient(180deg, #b56a58 0%, #a55a49 100%);
    box-shadow: 0 14px 28px rgba(0, 0, 0, 0.22);
    z-index: 220;
    opacity: 0;
    transform: translateY(-10px);
    transition: opacity 0.22s ease, transform 0.22s ease;
  }

  .nav > a {
    display: block;
    width: 100%;
    font-size: 15px;
    letter-spacing: 0;
    padding: 12px 10px;
    border-radius: 12px;
    background: transparent;
  }

  .nav > a:hover {
    background: rgba(255, 255, 255, 0.1);
  }

  .mobile-nav-group {
    display: block;
    width: 100%;
  }

  .mobile-nav-parent {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: transparent;
    color: #fff;
    padding: 12px 10px;
    border-radius: 12px;
    font-size: 15px;
  }

  .mobile-nav-parent:hover {
    background: rgba(255, 255, 255, 0.1);
  }

  .mobile-nav-arrow {
    display: inline-flex;
    transition: transform 0.22s ease;
  }

  .mobile-submenu {
    display: none;
    padding: 2px 0 8px 8px;
    gap: 6px;
    flex-direction: column;
  }

  .mobile-subitem {
    display: block;
    width: 100%;
    text-align: left;
    padding: 10px 12px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
  }

  .mobile-subitem:hover {
    background: rgba(255, 255, 255, 0.14);
  }

  body.mobile-search-open .search-wrap {
    display: flex;
  }

  body.mobile-menu-open .nav {
    display: flex;
    opacity: 1;
    transform: translateY(0);
  }

  body.mobile-ranking-open #mobileRankingMenu,
  body.mobile-category-open #mobileCategoryMenu {
    display: flex;
  }

  body.mobile-ranking-open #mobileRankingToggle .mobile-nav-arrow,
  body.mobile-category-open #mobileCategoryToggle .mobile-nav-arrow {
    transform: rotate(180deg);
  }

  .toolbar {
    padding: 14px;
  }

  .filters {
    width: 100%;
  }

  .filters select,
  .filters input {
    width: 100%;
  }

  .chip-group {
    width: 100%;
  }

  .reader-controls label {
    min-width: 100%;
  }

  .reader-footer {
    flex-direction: column;
  }

  .reader-footer .ghost-btn,
  .reader-footer .solid-btn {
    width: 100%;
  }

  .chapter-list-head {
    align-items: stretch;
  }

  .chapter-list-tools {
    width: 100%;
    margin-left: 0;
  }

  .chapter-select {
    width: 100%;
  }
}

/* ===== CATEGORY COLLAPSE FIX ===== */
.category-extra { display: none !important; }
.category-expanded .category-extra { display: inline-flex !important; }
.menu-list.category-expanded .category-extra { display: list-item !important; }
.chip-group .category-toggle, .category-sidebar-toggle, .mobile-submenu .category-toggle { display: inline-flex; align-items: center; justify-content: center; }
.category-sidebar-toggle { width: 100%; padding: 10px 12px; border-radius: 12px; background: var(--surface); border: 1px solid var(--border); color: var(--primary-dark); font-weight: 700; cursor: pointer; transition: background 0.2s ease, transform 0.2s ease; }
.category-sidebar-toggle:hover { background: var(--surface-hover); transform: translateY(-1px); }
@media (max-width: 640px) {
  .chip-group { align-items: flex-start; }
  .chip-group .category-extra { display: none !important; }
  .chip-group.category-expanded .category-extra { display: inline-flex !important; }
  .mobile-submenu .category-extra { display: none !important; }
  .mobile-submenu.category-expanded .category-extra { display: block !important; }
  .chip-group .category-toggle { order: 999; }
}


/* ===== FEATURED RANDOM BOOK ===== */
.hero-card {
  cursor: pointer;
}

.hero-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 28px rgba(138, 61, 47, 0.12);
}

.hero-card:focus-visible {
  outline: 3px solid rgba(138, 61, 47, 0.35);
  outline-offset: 4px;
}

#featuredTitle {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

#featuredDesc {
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}



/* ===== CATEGORY COLLAPSE FINAL FIX ===== */
.category-extra[hidden] {
  display: none !important;
}

.chip-group .category-extra,
.menu-list .category-extra,
.mobile-submenu .category-extra {
  display: none !important;
}

.chip-group.category-expanded .category-extra,
.menu-list.category-expanded .category-extra,
.mobile-submenu.category-expanded .category-extra {
  display: inline-flex !important;
}

.menu-list.category-expanded li.category-extra {
  display: block !important;
}

.category-toggle,
.category-sidebar-toggle {
  background: var(--surface);
  color: var(--primary-dark);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 9px 14px;
  font-weight: 700;
  cursor: pointer;
}

.category-sidebar-toggle {
  width: 100%;
  text-align: left;
  border-radius: 12px;
  padding: 10px 12px;
}

@media (max-width: 640px) {
  .chip-group .category-extra,
  .mobile-submenu .category-extra,
  .menu-list .category-extra {
    display: none !important;
  }

  .chip-group.category-expanded .category-extra,
  .mobile-submenu.category-expanded .category-extra {
    display: inline-flex !important;
  }

  .menu-list.category-expanded li.category-extra {
    display: block !important;
  }
}