/* ─────────────────────────────────────────────────────────
   The Arcane Shelf — Warm Fantasy Bookshop Stylesheet
   ───────────────────────────────────────────────────────── */

@import url('https://fonts.googleapis.com/css2?family=Cinzel+Decorative:wght@400;700&family=Cinzel:wght@400;600;700&family=EB+Garamond:ital,wght@0,400;0,500;0,600;1,400;1,500&display=swap');

/* ── Tokens ─────────────────────────────────────────────── */
:root {
  --ink:        #1a1208;
  --parchment:  #f5edd8;
  --parchment2: #ede0c4;
  --parchment3: #e0ceaa;
  --amber:      #c8852a;
  --amber-deep: #9a5f10;
  --ember:      #d94f2a;
  --moss:       #4a6741;
  --cream:      #fdf6e8;
  --dust:       #8a7355;
  --shadow:     rgba(26,18,8,0.55);
  --glow:       rgba(200,133,42,0.25);

  --ff-title:  'Cinzel Decorative', serif;
  --ff-head:   'Cinzel', serif;
  --ff-body:   'EB Garamond', serif;

  --r-card:    8px;
  --r-btn:     4px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--ff-body);
  font-size: 18px;
  background-color: var(--ink);
  color: var(--parchment);
  min-height: 100vh;
  line-height: 1.65;
  background-image:
    radial-gradient(ellipse at 20% 0%, rgba(200,133,42,0.12) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 100%, rgba(74,103,65,0.08) 0%, transparent 50%),
    url("data:image/svg+xml,%3Csvg width='120' height='120' viewBox='0 0 120 120' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='120' height='120' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
}

img { max-width: 100%; display: block; }
a  { color: var(--amber); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--parchment); }

/* ── Scrollbar ──────────────────────────────────────────── */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--ink); }
::-webkit-scrollbar-thumb { background: var(--amber-deep); border-radius: 4px; }

/* ── Header ─────────────────────────────────────────────── */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: linear-gradient(180deg, rgba(16,10,4,0.97) 0%, rgba(16,10,4,0.9) 100%);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(200,133,42,0.3);
  padding: 0 2rem;
}

.header-inner {
  max-width: 1300px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 1rem;
}

.site-logo {
  font-family: var(--ff-title);
  font-size: 1.3rem;
  color: var(--amber);
  letter-spacing: 0.04em;
  white-space: nowrap;
  text-shadow: 0 0 20px var(--glow);
}
.site-logo span { color: var(--parchment); }

.site-nav { display: flex; align-items: center; gap: 0.25rem; }

.nav-link {
  font-family: var(--ff-head);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--parchment3);
  padding: 0.5rem 0.9rem;
  border-radius: var(--r-btn);
  transition: all var(--transition);
}
.nav-link:hover, .nav-link.active {
  color: var(--amber);
  background: rgba(200,133,42,0.1);
}

/* ── Search ─────────────────────────────────────────────── */
.search-wrap { position: relative; }

.search-input {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(200,133,42,0.25);
  border-radius: 20px;
  padding: 0.4rem 1rem 0.4rem 2.2rem;
  color: var(--parchment);
  font-family: var(--ff-body);
  font-size: 0.9rem;
  width: 200px;
  transition: all var(--transition);
  outline: none;
}
.search-input:focus {
  width: 260px;
  border-color: var(--amber);
  background: rgba(200,133,42,0.08);
  box-shadow: 0 0 0 3px var(--glow);
}
.search-input::placeholder { color: var(--dust); }
.search-icon {
  position: absolute; left: 0.7rem; top: 50%;
  transform: translateY(-50%);
  color: var(--dust); font-size: 0.85rem;
  pointer-events: none;
}

/* ── Hero ───────────────────────────────────────────────── */
.hero {
  position: relative;
  padding: 6rem 2rem 5rem;
  text-align: center;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 50% 60%, rgba(200,133,42,0.18) 0%, transparent 70%);
  pointer-events: none;
}

.hero-ornament {
  font-family: var(--ff-head);
  font-size: 0.7rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--amber);
  opacity: 0.8;
  margin-bottom: 1.5rem;
  display: flex; align-items: center; justify-content: center; gap: 1rem;
}
.hero-ornament::before, .hero-ornament::after {
  content: '';
  height: 1px; width: 60px;
  background: linear-gradient(90deg, transparent, var(--amber));
}
.hero-ornament::after { background: linear-gradient(90deg, var(--amber), transparent); }

.hero h1 {
  font-family: var(--ff-title);
  font-size: clamp(2.2rem, 6vw, 4rem);
  color: var(--parchment);
  line-height: 1.15;
  margin-bottom: 1rem;
  text-shadow: 0 2px 30px rgba(200,133,42,0.3);
}

.hero p {
  font-size: 1.15rem;
  color: var(--parchment3);
  font-style: italic;
  max-width: 500px;
  margin: 0 auto 2.5rem;
}

/* ── Genre Filter ───────────────────────────────────────── */
.genre-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  padding: 0 2rem 3rem;
}

.genre-btn {
  font-family: var(--ff-head);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.45rem 1.1rem;
  border-radius: 20px;
  border: 1px solid rgba(200,133,42,0.3);
  background: transparent;
  color: var(--parchment3);
  cursor: pointer;
  transition: all var(--transition);
}
.genre-btn:hover, .genre-btn.active {
  background: var(--amber);
  color: var(--ink);
  border-color: var(--amber);
  box-shadow: 0 0 16px var(--glow);
}

/* ── Section Title ──────────────────────────────────────── */
.section-header {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 2rem;
  padding: 0 2rem;
  max-width: 1300px;
  margin-left: auto; margin-right: auto;
}
.section-title {
  font-family: var(--ff-head);
  font-size: 1rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--amber);
  white-space: nowrap;
}
.section-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, rgba(200,133,42,0.4), transparent);
}

/* ── Book Grid ──────────────────────────────────────────── */
.books-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  gap: 2rem;
  padding: 0 2rem 4rem;
  max-width: 1300px;
  margin: 0 auto;
}

/* ── Book Card ──────────────────────────────────────────── */
.book-card {
  position: relative;
  cursor: pointer;
  border-radius: var(--r-card);
  overflow: hidden;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(200,133,42,0.1);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  animation: fadeUp 0.5s ease both;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

.book-card:hover {
  transform: translateY(-6px) scale(1.01);
  border-color: rgba(200,133,42,0.4);
  box-shadow: 0 20px 50px rgba(0,0,0,0.6), 0 0 30px var(--glow);
}

.book-cover {
  position: relative;
  aspect-ratio: 2/3;
  overflow: hidden;
  background: linear-gradient(135deg, var(--amber-deep), var(--moss));
}

.book-cover img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.book-card:hover .book-cover img { transform: scale(1.06); }

.book-cover-placeholder {
  width: 100%; height: 100%;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, #2a1e0e 0%, #1a3025 100%);
  color: var(--parchment3);
  font-family: var(--ff-head);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 1rem;
  text-align: center;
}
.book-cover-placeholder .book-icon { font-size: 2.5rem; opacity: 0.5; }

.book-audio-badge {
  position: absolute; top: 8px; right: 8px;
  background: rgba(16,10,4,0.85);
  border: 1px solid var(--amber);
  color: var(--amber);
  border-radius: 50%;
  width: 30px; height: 30px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem;
  box-shadow: 0 0 10px var(--glow);
}

.book-featured-badge {
  position: absolute; top: 8px; left: 8px;
  background: var(--amber);
  color: var(--ink);
  font-family: var(--ff-head);
  font-size: 0.55rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.2rem 0.5rem;
  border-radius: 2px;
}

.book-info {
  padding: 1rem;
}
.book-title {
  font-family: var(--ff-head);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--parchment);
  margin-bottom: 0.2rem;
  line-height: 1.3;
}
.book-author {
  font-size: 0.8rem;
  color: var(--dust);
  font-style: italic;
}
.book-genre {
  display: inline-block;
  margin-top: 0.5rem;
  font-family: var(--ff-head);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--amber);
  background: rgba(200,133,42,0.1);
  border: 1px solid rgba(200,133,42,0.2);
  padding: 0.15rem 0.5rem;
  border-radius: 2px;
}

/* ── Book Detail Modal ──────────────────────────────────── */
.modal-overlay {
  display: none;
  position: fixed; inset: 0; z-index: 200;
  background: rgba(10,6,2,0.85);
  backdrop-filter: blur(8px);
  padding: 2rem;
  overflow-y: auto;
  align-items: center;
  justify-content: center;
}
.modal-overlay.open { display: flex; }

.modal {
  background: linear-gradient(160deg, #1e1408 0%, #140e06 100%);
  border: 1px solid rgba(200,133,42,0.3);
  border-radius: 12px;
  max-width: 800px;
  width: 100%;
  overflow: hidden;
  box-shadow: 0 40px 100px rgba(0,0,0,0.8), 0 0 60px var(--glow);
  animation: modalIn 0.3s ease;
}
@keyframes modalIn {
  from { opacity: 0; transform: scale(0.95) translateY(10px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-header {
  display: flex;
  gap: 2rem;
  padding: 2rem;
  border-bottom: 1px solid rgba(200,133,42,0.15);
}

.modal-cover {
  flex-shrink: 0;
  width: 140px;
  aspect-ratio: 2/3;
  border-radius: var(--r-card);
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}
.modal-cover img { width:100%; height:100%; object-fit:cover; }

.modal-meta { flex: 1; }
.modal-title {
  font-family: var(--ff-title);
  font-size: 1.6rem;
  color: var(--parchment);
  line-height: 1.2;
  margin-bottom: 0.4rem;
}
.modal-author {
  font-size: 1rem;
  color: var(--amber);
  font-style: italic;
  margin-bottom: 0.8rem;
}
.modal-tags { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-bottom: 1rem; }
.modal-tag {
  font-family: var(--ff-head);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.2rem 0.7rem;
  border-radius: 2px;
  border: 1px solid rgba(200,133,42,0.3);
  color: var(--parchment3);
}
.modal-desc {
  font-size: 0.95rem;
  color: var(--parchment3);
  line-height: 1.7;
}

.modal-close {
  position: absolute;
  /* overridden inline */
}

.modal-body { padding: 2rem; }

/* ── Audio Player ───────────────────────────────────────── */
.audio-player {
  background: rgba(0,0,0,0.3);
  border: 1px solid rgba(200,133,42,0.2);
  border-radius: var(--r-card);
  padding: 1.5rem;
}

.audio-player-title {
  font-family: var(--ff-head);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 1rem;
}

audio {
  width: 100%;
  filter: sepia(0.3);
}

/* Styled audio player controls */
.player-controls {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

.play-btn {
  width: 50px; height: 50px;
  border-radius: 50%;
  border: 2px solid var(--amber);
  background: rgba(200,133,42,0.15);
  color: var(--amber);
  font-size: 1.2rem;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all var(--transition);
  flex-shrink: 0;
}
.play-btn:hover {
  background: var(--amber);
  color: var(--ink);
  box-shadow: 0 0 20px var(--glow);
}

.progress-wrap { flex: 1; min-width: 100px; }
.progress-bar-bg {
  height: 4px;
  background: rgba(255,255,255,0.1);
  border-radius: 2px;
  cursor: pointer;
  position: relative;
}
.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--amber-deep), var(--amber));
  border-radius: 2px;
  width: 0%;
  transition: width 0.1s linear;
}
.time-display {
  font-family: var(--ff-head);
  font-size: 0.7rem;
  color: var(--dust);
  margin-top: 0.4rem;
  letter-spacing: 0.05em;
}
.volume-wrap {
  display: flex; align-items: center; gap: 0.5rem;
}
.volume-icon { color: var(--dust); font-size: 0.9rem; }
input[type=range].volume-slider {
  -webkit-appearance: none;
  width: 80px; height: 4px;
  background: rgba(255,255,255,0.1);
  border-radius: 2px;
  cursor: pointer;
}
input[type=range].volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--amber);
  cursor: pointer;
}
.playback-speed {
  font-family: var(--ff-head);
  font-size: 0.65rem;
  letter-spacing: 0.05em;
  background: rgba(200,133,42,0.1);
  border: 1px solid rgba(200,133,42,0.25);
  color: var(--parchment3);
  padding: 0.25rem 0.5rem;
  border-radius: 3px;
  cursor: pointer;
}

/* ── Footer ─────────────────────────────────────────────── */
footer {
  text-align: center;
  padding: 2.5rem 2rem;
  border-top: 1px solid rgba(200,133,42,0.15);
  font-family: var(--ff-head);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--dust);
}
footer a { color: var(--amber); }

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  font-family: var(--ff-head);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.7rem 1.5rem;
  border-radius: var(--r-btn);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  display: inline-flex; align-items: center; gap: 0.5rem;
}
.btn-primary {
  background: var(--amber);
  color: var(--ink);
}
.btn-primary:hover {
  background: var(--parchment);
  box-shadow: 0 0 20px var(--glow);
  color: var(--ink);
}
.btn-outline {
  background: transparent;
  color: var(--amber);
  border: 1px solid rgba(200,133,42,0.4);
}
.btn-outline:hover {
  background: rgba(200,133,42,0.1);
  border-color: var(--amber);
}
.btn-danger {
  background: rgba(217,79,42,0.15);
  color: var(--ember);
  border: 1px solid rgba(217,79,42,0.3);
}
.btn-danger:hover { background: var(--ember); color: white; }

/* ── Empty state ─────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 5rem 2rem;
  color: var(--dust);
}
.empty-state-icon { font-size: 4rem; margin-bottom: 1rem; opacity: 0.4; }
.empty-state p { font-style: italic; font-size: 1.1rem; }

/* ── Flash messages ──────────────────────────────────────── */
.flash {
  padding: 1rem 1.5rem;
  border-radius: var(--r-card);
  margin-bottom: 1.5rem;
  font-family: var(--ff-head);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
}
.flash-success { background: rgba(74,103,65,0.25); border: 1px solid rgba(74,103,65,0.5); color: #8fbc7a; }
.flash-error   { background: rgba(217,79,42,0.2);  border: 1px solid rgba(217,79,42,0.4); color: #e8886a; }

/* ── Admin common ────────────────────────────────────────── */
.admin-wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
}

/* ── Responsive ─────────────────────────────────────────── */
@media (max-width: 768px) {
  .site-logo { font-size: 1rem; }
  .search-input { width: 150px; }
  .search-input:focus { width: 190px; }
  .books-grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 1.2rem; padding: 0 1rem 3rem; }
  .hero { padding: 3.5rem 1rem 3rem; }
  .hero h1 { font-size: 1.9rem; }
  .modal-header { flex-direction: column; }
  .modal-cover { width: 100px; }
  .modal { margin: 1rem; }
  .section-header { padding: 0 1rem; }
  .genre-bar { padding: 0 1rem 2rem; }
  .site-nav { display: none; }
  .header-inner { justify-content: space-between; }
}

@media (max-width: 480px) {
  .books-grid { grid-template-columns: repeat(2, 1fr); }
  .player-controls { gap: 0.7rem; }
  input[type=range].volume-slider { width: 60px; }
}

/* ── PDF Badge ───────────────────────────────────────────── */
.book-pdf-badge {
  position: absolute; top: 42px; right: 8px;
  background: rgba(16,10,4,0.85);
  border: 1px solid #c84a2a;
  color: #c84a2a;
  border-radius: 50%;
  width: 30px; height: 30px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem;
}
/* push pdf badge down if audio badge also present */
.book-audio-badge + .book-pdf-badge { top: 46px; }

/* ── Modal Tabs ──────────────────────────────────────────── */
.modal-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.2rem;
  border-bottom: 1px solid rgba(200,133,42,0.15);
  padding-bottom: 0.75rem;
}
.modal-tab {
  font-family: var(--ff-head);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.5rem 1.1rem;
  border-radius: var(--r-btn);
  border: 1px solid rgba(200,133,42,0.2);
  background: transparent;
  color: var(--dust);
  cursor: pointer;
  transition: all var(--transition);
}
.modal-tab:hover { color: var(--parchment3); border-color: rgba(200,133,42,0.4); }
.modal-tab.active {
  background: rgba(200,133,42,0.15);
  border-color: var(--amber);
  color: var(--amber);
}

/* ── PDF Viewer ──────────────────────────────────────────── */
.pdf-viewer-wrap {
  border: 1px solid rgba(200,133,42,0.2);
  border-radius: var(--r-card);
  overflow: hidden;
}
.pdf-viewer-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  background: rgba(0,0,0,0.3);
  border-bottom: 1px solid rgba(200,133,42,0.15);
  gap: 1rem;
  flex-wrap: wrap;
}
.pdf-viewer-title {
  font-family: var(--ff-head);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber);
}
.pdf-iframe {
  width: 100%;
  height: 520px;
  border: none;
  background: #fff;
  display: block;
}

@media (max-width: 768px) {
  .pdf-iframe { height: 380px; }
}

/* ── No-audio state ──────────────────────────────────────── */
.no-audio {
  text-align: center;
  padding: 1.5rem;
  color: var(--dust);
  font-style: italic;
  font-size: 0.9rem;
}