@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@400;600;700&family=Inter:wght@300;400;500&display=swap');

:root {
  --bg-color: #0b090f; /* Deepest purple-gray void */
  --surface-color: rgba(22, 18, 28, 0.6);
  --surface-color-light: rgba(33, 28, 43, 0.8);
  --text-primary: #e8e6ed; /* Soft gray-white */
  --text-secondary: #9793a3;
  --accent-primary: #6c5287; /* Deep mystical purple */
  --accent-primary-glow: rgba(108, 82, 135, 0.3);
  --accent-secondary: #4a4d52; /* Elegant gray */
  --accent-secondary-glow: rgba(74, 77, 82, 0.4);
  --font-serif: 'Cinzel', serif;
  --font-sans: 'Inter', sans-serif;
  --transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
  --glass-border: 1px solid rgba(255, 255, 255, 0.05);
}

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

body {
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-image: 
    radial-gradient(circle at 0% 0%, var(--accent-secondary-glow), transparent 40%),
    radial-gradient(circle at 100% 100%, var(--accent-primary-glow), transparent 40%);
  background-attachment: fixed;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 600;
  color: var(--accent-gold);
  letter-spacing: 2px;
}

/* --- Navigation/Header --- */
header {
  padding: 2rem 5%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: var(--glass-border);
  background: rgba(8, 7, 11, 0.8);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-content h1 {
  font-size: 1.8rem;
  text-transform: uppercase;
  text-shadow: 0 0 10px var(--accent-primary-glow);
}

.header-content p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  letter-spacing: 1px;
}

/* --- Buttons --- */
.btn {
  display: inline-block;
  padding: 0.8rem 1.8rem;
  text-decoration: none;
  font-family: var(--font-serif);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.85rem;
  transition: var(--transition);
  border-radius: 4px;
  cursor: pointer;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.btn-outline {
  background: rgba(108, 82, 135, 0.05);
  color: var(--accent-primary);
  border: 1px solid var(--accent-primary);
}

.btn-outline:hover {
  background: var(--accent-primary);
  color: var(--bg-color);
  box-shadow: 0 0 20px var(--accent-primary-glow);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-primary), #4a365e);
  color: var(--bg-color);
  border: none;
  font-weight: 700;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 20px var(--accent-primary-glow);
  filter: brightness(1.1);
}

/* --- Hero Section --- */
.hero {
  position: relative;
  padding: 8rem 5%;
  text-align: center;
  border-bottom: var(--glass-border);
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('sanctum_hero.png') center/cover no-repeat;
  opacity: 0.6;
  z-index: 1;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  background: linear-gradient(to bottom, var(--bg-color), transparent 20%, transparent 80%, var(--bg-color));
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  margin: 0 auto;
}

.hero h2 {
  font-size: 3.5rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
  text-shadow: 0 0 30px rgba(255,255,255,0.2);
}

.hero p {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

/* --- Main Layout --- */
main {
  flex: 1;
  padding: 4rem 0;
  width: 100%;
}

.empty-state {
  text-align: center;
  padding: 5rem 2rem;
  color: var(--text-secondary);
  font-family: var(--font-serif);
  font-size: 1.2rem;
}

.error-text {
  color: var(--accent-secondary);
}

/* --- Horizontal Scrolling Sections --- */
.category-section {
  margin-bottom: 4rem;
  padding-left: 5%;
}

.category-title {
  font-size: 1.8rem;
  margin-bottom: 1.5rem;
  padding-right: 5%;
  display: flex;
  align-items: center;
}

.category-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--accent-primary-glow), transparent);
  margin-left: 20px;
}

.horizontal-scroll {
  display: flex;
  gap: 2rem;
  overflow-x: auto;
  padding-bottom: 2rem;
  padding-right: 5%;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--accent-primary) var(--surface-color);
}

.horizontal-scroll::-webkit-scrollbar {
  height: 6px;
}

.horizontal-scroll::-webkit-scrollbar-track {
  background: rgba(0,0,0,0.2);
  border-radius: 10px;
}

.horizontal-scroll::-webkit-scrollbar-thumb {
  background: var(--accent-primary-glow);
  border-radius: 10px;
}

.horizontal-scroll::-webkit-scrollbar-thumb:hover {
  background: var(--accent-gold);
}

/* --- Book Cards (Glassmorphism) --- */
.glass {
  background: var(--surface-color);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: var(--glass-border);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
}

.book-card {
  flex: 0 0 320px; /* Fixed width for horizontal scroll */
  scroll-snap-align: start;
  border-radius: 12px;
  overflow: hidden;
  transition: var(--transition);
  position: relative;
  display: flex;
  flex-direction: column;
}

.book-card:hover {
  transform: translateY(-10px);
  border-color: rgba(108, 82, 135, 0.4);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.8), 0 0 20px var(--accent-primary-glow);
}

.book-cover-container {
  width: 100%;
  height: 480px;
  position: relative;
  overflow: hidden;
  background: #000;
}

.book-cover {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
  opacity: 0.9;
}

.book-card:hover .book-cover {
  transform: scale(1.08);
  opacity: 1;
}

.book-info {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.book-title {
  font-size: 1.4rem;
  margin-bottom: 0.2rem;
  color: var(--text-primary);
}

.book-author {
  font-size: 0.85rem;
  color: var(--accent-gold);
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.book-blurb {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}

.book-card .btn {
  width: 100%;
}

/* --- Form Styles --- */
.form-wrapper {
  padding: 4rem 5%;
}

.form-container {
  max-width: 650px;
  margin: 0 auto;
  padding: 3rem;
  border-radius: 16px;
  position: relative;
  overflow: hidden;
}

.form-container::before {
  content: '';
  position: absolute;
  top: 0; left: 0; width: 100%; height: 5px;
  background: linear-gradient(90deg, var(--accent-secondary), var(--accent-primary));
}

.form-group {
  margin-bottom: 1.8rem;
}

label {
  display: block;
  margin-bottom: 0.5rem;
  font-family: var(--font-serif);
  color: var(--accent-gold);
  font-size: 0.95rem;
  letter-spacing: 1px;
}

input[type="text"],
input[type="url"],
select,
textarea {
  width: 100%;
  padding: 1rem;
  background: rgba(0,0,0,0.4);
  border: 1px solid rgba(255,255,255,0.1);
  color: var(--text-primary);
  font-family: var(--font-sans);
  border-radius: 8px;
  transition: var(--transition);
  font-size: 1rem;
}

select {
  appearance: none;
  cursor: pointer;
}

select option {
  background: var(--bg-color);
  color: var(--text-primary);
}

input[type="text"]:focus,
input[type="url"]:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 15px var(--accent-primary-glow);
  background: rgba(0,0,0,0.6);
}

textarea {
  resize: vertical;
  min-height: 150px;
}

input[type="file"] {
  width: 100%;
  padding: 0.5rem 0;
  color: var(--text-secondary);
}

input[type="file"]::file-selector-button {
  padding: 0.8rem 1.5rem;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--accent-primary);
  color: var(--accent-primary);
  border-radius: 4px;
  margin-right: 1rem;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-serif);
  text-transform: uppercase;
  font-size: 0.8rem;
}

input[type="file"]::file-selector-button:hover {
  background: var(--accent-primary);
  color: var(--bg-color);
  box-shadow: 0 0 15px var(--accent-primary-glow);
}

.form-actions {
  margin-top: 3rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-link:hover {
  color: var(--accent-gold);
}

/* Loader */
.loader {
  display: none;
  border: 2px solid rgba(0,0,0,0.1);
  border-radius: 50%;
  border-top: 2px solid var(--bg-color);
  width: 18px;
  height: 18px;
  animation: spin 1s linear infinite;
  margin-left: 10px;
  vertical-align: middle;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

#success-message {
  display: none;
  padding: 1.5rem;
  background: rgba(46, 139, 87, 0.1);
  border: 1px solid rgba(46, 139, 87, 0.3);
  border-left: 4px solid #2e8b57;
  border-radius: 8px;
  margin-bottom: 2rem;
  color: #a8d5ba;
  font-weight: 500;
}

/* --- Footer --- */
.seo-footer {
  background: #000;
  padding: 4rem 5% 2rem;
  border-top: var(--glass-border);
  margin-top: auto;
}

.seo-caption {
  max-width: 800px;
  margin: 0 auto 3rem;
  text-align: center;
}

.seo-caption h3 {
  font-size: 1.2rem;
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

.seo-caption p {
  color: #666;
  font-size: 0.85rem;
  line-height: 1.8;
}

.footer-copy {
  text-align: center;
  color: #444;
  font-size: 0.8rem;
  border-top: 1px solid rgba(255,255,255,0.05);
  padding-top: 2rem;
}

/* --- V3: Book Metadata Tags & Quiz --- */
.book-metadata {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.8rem;
}

.meta-tag {
  font-size: 0.75rem;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  background: rgba(108, 82, 135, 0.15);
  border: 1px solid rgba(108, 82, 135, 0.3);
  color: #e8e6ed;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.spice-tag {
  background: rgba(139, 0, 0, 0.15);
  border-color: rgba(139, 0, 0, 0.3);
  color: #ff9999;
}

.tropes-list {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 0.8rem;
  line-height: 1.4;
}

.tropes-list strong {
  color: var(--accent-primary);
  font-weight: 500;
}

/* Quiz UI */
#quiz-section {
  padding: 2rem 5%;
  margin: 0 auto 3rem;
  max-width: 800px;
  background: var(--surface-color);
  border: var(--glass-border);
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
  text-align: center;
}

.quiz-question {
  display: none;
  animation: fadeIn 0.5s ease-in-out;
}

.quiz-question.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.quiz-question h3 {
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

.quiz-options {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.quiz-btn {
  background: rgba(0,0,0,0.3);
  border: 1px solid var(--accent-secondary);
  color: var(--text-primary);
  padding: 0.8rem 1.5rem;
  border-radius: 6px;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-sans);
  font-size: 1rem;
}

.quiz-btn:hover {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  box-shadow: 0 0 15px var(--accent-primary-glow);
}

#quiz-results {
  display: none;
  padding: 2rem;
  border-top: 1px solid rgba(255,255,255,0.05);
  margin-top: 2rem;
}

#quiz-results .horizontal-scroll {
  padding-bottom: 1rem;
}

/* --- Whispering Mist Hover & Glowing Ribbon --- */
.book-card {
  position: relative;
  overflow: hidden;
  transition: transform 0.4s ease, box-shadow 0.4s ease, border-color 0.4s ease;
}

.book-card::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 40%;
  background: linear-gradient(0deg, rgba(108, 82, 135, 0.25) 0%, transparent 100%);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
  z-index: 2;
}

.book-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 35px rgba(108, 82, 135, 0.35);
  border-color: rgba(108, 82, 135, 0.5);
}

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

.curators-pick-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: linear-gradient(135deg, var(--accent-primary) 0%, #d4af37 100%);
  color: #fff;
  font-size: 0.7rem;
  font-weight: bold;
  padding: 0.35rem 0.65rem;
  border-radius: 4px;
  box-shadow: 0 0 12px rgba(108, 82, 135, 0.6);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  z-index: 10;
  animation: pulse-glow 2s infinite alternate;
  pointer-events: none;
}

@keyframes pulse-glow {
  0% { box-shadow: 0 0 8px rgba(108, 82, 135, 0.4); }
  100% { box-shadow: 0 0 16px rgba(108, 82, 135, 0.8), 0 0 8px #d4af37; }
}

.spice-gauge {
  font-size: 0.75rem;
  letter-spacing: 1.5px;
  margin-left: 0.3rem;
  vertical-align: middle;
}