/* ===========================
   GLOBAL RESET & VARIABLES
=========================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --cream: #fdf6e3;
  --heritage-red: #8b0000;
  --heritage-red-light: #b22222;
  --orange: #e07b39;
  --orange-dark: #c0622a;
  --orange-light: #f9a86a;
  --brown: #4a2c16;
  --gold: #d4af37;
  --gold-light: #f9e29b;
  --text-dark: #2c1a0e;
  --text-mid: #5a3e28;
  --text-light: #9a7a5a;
  --white: #ffffff;
  --shadow-sm: 0 4px 12px rgba(74,44,22,0.12);
  --shadow-md: 0 8px 30px rgba(74,44,22,0.18);
  --shadow-lg: 0 16px 60px rgba(74,44,22,0.25);
  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 32px;
  --font-serif: 'Lora', Georgia, serif;
  --font-sans: 'Nunito', sans-serif;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-serif);
  background-color: var(--cream);
  background-image: url('assets/pattern.png');
  background-size: 400px;
  background-repeat: repeat;
  background-blend-mode: overlay;
  color: var(--text-dark);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: rgba(253, 246, 227, 0.85); /* Overlay to make pattern subtle */
  z-index: -1;
  pointer-events: none;
}

/* ===========================
   SCREEN SYSTEM
=========================== */
.screen {
  display: none;
  min-height: 100vh;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.screen.active {
  display: flex;
  flex-direction: column;
  opacity: 1;
}

/* ===========================
   LANGUAGE SELECTION SCREEN
=========================== */
#lang-screen {
  position: relative;
  justify-content: center;
  align-items: center;
  background: linear-gradient(145deg, #fdf0d5 0%, #fde8b8 40%, #f9d89a 100%);
  overflow: hidden;
}

/* Decorative background orbs */
.lang-bg-orbs { position: absolute; inset: 0; pointer-events: none; }

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.45;
  animation: orbFloat 8s ease-in-out infinite alternate;
}
.orb-1 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, #f4a940 0%, transparent 70%);
  top: -150px; left: -150px;
  animation-duration: 9s;
}
.orb-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, #e07b39 0%, transparent 70%);
  bottom: -120px; right: -100px;
  animation-duration: 11s;
  animation-delay: -4s;
}
.orb-3 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, #f0c060 0%, transparent 70%);
  top: 50%; left: 55%;
  transform: translate(-50%, -50%);
  animation-duration: 7s;
  animation-delay: -2s;
}

@keyframes orbFloat {
  0%   { transform: translate(0, 0) scale(1); }
  100% { transform: translate(30px, 20px) scale(1.08); }
}

.lang-container {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 48px;
  padding: 60px 40px;
  width: 90%;
  max-width: 640px;
  background: rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(8px);
  border: 2px solid var(--gold);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.lang-container::before,
.lang-container::after,
.lang-container > span::before,
.lang-container > span::after {
  content: "";
  position: absolute;
  width: 80px;
  height: 80px;
  background: url('assets/corner.png') no-repeat center;
  background-size: contain;
  pointer-events: none;
}

.lang-container::before { top: 10px; left: 10px; }
.lang-container::after { top: 10px; right: 10px; transform: rotate(90deg); }
.lang-container > .lang-logo::before { bottom: 10px; left: 10px; position: absolute; content: ""; width: 80px; height: 80px; background: url('assets/corner.png') no-repeat center; background-size: contain; transform: rotate(-90deg); z-index: -1; }
.lang-container > .lang-logo::after { bottom: 10px; right: 10px; position: absolute; content: ""; width: 80px; height: 80px; background: url('assets/corner.png') no-repeat center; background-size: contain; transform: rotate(180deg); z-index: -1; }

.lang-logo {
  text-align: center;
  animation: fadeInDown 0.7s ease both;
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-24px); }
  to   { opacity: 1; transform: translateY(0); }
}

.logo-icon {
  font-size: 72px;
  display: block;
  margin-bottom: 12px;
  filter: drop-shadow(0 4px 12px rgba(92,51,23,0.25));
  animation: bookBounce 3s ease-in-out infinite;
}

@keyframes bookBounce {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-8px) rotate(3deg); }
}

.lang-title {
  font-family: var(--font-sans);
  font-size: clamp(2.5rem, 8vw, 4.5rem);
  font-weight: 900;
  color: var(--brown);
  letter-spacing: -1px;
  text-shadow: 0 2px 8px rgba(92,51,23,0.15);
}

.lang-subtitle {
  font-family: var(--font-sans);
  font-size: 1.1rem;
  color: var(--text-mid);
  margin-top: 8px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

/* Language buttons */
.lang-buttons {
  display: flex;
  flex-direction: column;
  gap: 16px;
  width: 100%;
  animation: fadeInUp 0.7s ease 0.2s both;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

.lang-btn {
  display: flex;
  align-items: center;
  gap: 20px;
  background: rgba(255,255,255,0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 2px solid rgba(255,255,255,0.9);
  border-radius: var(--radius-md);
  padding: 20px 28px;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-sm), inset 0 1px 0 rgba(255,255,255,0.8);
  text-align: left;
  width: 100%;
}

.lang-btn:hover {
  transform: translateY(-3px) scale(1.01);
  background: rgba(255,255,255,0.92);
  box-shadow: var(--shadow-md), inset 0 1px 0 rgba(255,255,255,0.9);
  border-color: var(--orange-light);
}

.lang-btn:active {
  transform: translateY(0) scale(0.99);
}

.lang-flag {
  font-size: 2.8rem;
  flex-shrink: 0;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.15));
}

.lang-name {
  font-family: var(--font-sans);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--brown);
  flex: 1;
}

.lang-desc {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--text-light);
  font-weight: 600;
}

/* ===========================
   SITE HEADER
=========================== */
.site-header {
  background: rgba(253,246,227,0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(224,123,57,0.15);
  box-shadow: 0 2px 16px rgba(92,51,23,0.08);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 900px;
  margin: 0 auto;
  padding: 14px 20px;
  gap: 12px;
}

.back-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: 2px solid var(--orange);
  color: var(--orange-dark);
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.9rem;
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}
.back-btn:hover {
  background: var(--orange);
  color: white;
  transform: translateX(-2px);
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-size: 1.3rem;
  font-weight: 900;
  color: var(--brown);
  flex: 1;
  justify-content: center;
}

.lang-flags {
  display: flex;
  gap: 6px;
}

.flag-btn {
  background: none;
  border: 2px solid transparent;
  border-radius: 8px;
  font-size: 1.5rem;
  cursor: pointer;
  padding: 4px 6px;
  transition: var(--transition);
  opacity: 0.5;
  line-height: 1;
}
.flag-btn:hover { opacity: 0.85; transform: scale(1.1); }
.flag-btn.active { opacity: 1; border-color: var(--orange); background: var(--gold-light); }

/* ===========================
   STORY LIST SCREEN
=========================== */
#story-list-screen {
  background: var(--cream);
}

.story-list-main {
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 20px 60px;
  flex: 1;
}

.list-hero {
  text-align: center;
  margin-bottom: 40px;
}

.list-hero h2 {
  font-family: var(--font-sans);
  font-size: clamp(1.8rem, 5vw, 2.8rem);
  font-weight: 900;
  color: var(--brown);
  margin-bottom: 8px;
}

.list-hero p {
  font-family: var(--font-sans);
  color: var(--text-light);
  font-size: 1rem;
  font-weight: 600;
}

.story-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

/* Story Card */
.story-card-item {
  background: white;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid var(--gold-light);
  animation: fadeInUp 0.5s ease both;
  position: relative;
}
.story-card-item::before {
  content: "";
  position: absolute;
  top: 5px;
  left: 5px;
  width: 40px;
  height: 40px;
  background: url('assets/corner.png') no-repeat center;
  background-size: contain;
  opacity: 0.3;
  pointer-events: none;
}
.story-card-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--gold);
}
.story-card-item:hover::before { opacity: 0.8; }
.story-card-item:active { transform: translateY(-2px); }

.card-cover {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  display: block;
  background: linear-gradient(135deg, #fde8b8, #f9d89a);
}
.card-cover-placeholder {
  width: 100%;
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, #fde8b8, #f4a940);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
}

.card-body {
  padding: 18px 20px 20px;
}
.card-title {
  font-family: var(--font-sans);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--brown);
  margin-bottom: 6px;
  line-height: 1.3;
}
.card-excerpt {
  font-family: var(--font-serif);
  font-size: 0.85rem;
  color: var(--text-light);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-read-btn {
  margin-top: 14px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: linear-gradient(135deg, var(--heritage-red), var(--brown));
  color: white;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.85rem;
  padding: 8px 18px;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 3px 12px rgba(139,0,0,0.35);
}
.card-read-btn:hover {
  transform: scale(1.04);
  box-shadow: 0 5px 18px rgba(139,0,0,0.5);
}

/* ===========================
   STORY READER SCREEN
=========================== */
#story-screen {
  background: var(--cream);
}

.story-main {
  max-width: 760px;
  margin: 0 auto;
  padding: 40px 20px 80px;
  flex: 1;
}

.story-card {
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  animation: fadeInUp 0.5s ease both;
  position: relative;
  border: 4px double var(--gold);
}

.story-card::before,
.story-card::after {
  content: "";
  position: absolute;
  width: 100px;
  height: 100px;
  background: url('assets/corner.png') no-repeat center;
  background-size: contain;
  pointer-events: none;
  z-index: 10;
  opacity: 0.8;
}

.story-card::before { top: 10px; left: 10px; }
.story-card::after { top: 10px; right: 10px; transform: rotate(90deg); }

/* Cover image */
.story-cover-wrap {
  width: 100%;
  max-height: 380px;
  overflow: hidden;
  background: linear-gradient(135deg, #fde8b8, #f4a940);
}
.story-cover {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
  transition: transform 0.5s ease;
}
.story-cover:hover { transform: scale(1.02); }

/* Story Title */
.story-title-section {
  padding: 36px 40px 0;
  text-align: center;
}
.story-title {
  font-family: var(--font-sans);
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 900;
  color: var(--orange-dark);
  line-height: 1.25;
  margin-bottom: 16px;
}
.story-title-line {
  width: 140px;
  height: 40px;
  background: url('assets/corner.png') no-repeat center;
  background-size: contain;
  margin: 10px auto 0;
  opacity: 0.8;
  filter: sepia(1) saturate(5) hue-rotate(-10deg);
}

/* Audio Player */
.audio-section {
  margin: 28px 32px;
  background: linear-gradient(135deg, #fffbf0, var(--gold-light));
  border: 1.5px solid rgba(240,192,96,0.5);
  border-radius: var(--radius-md);
  padding: 18px 22px;
}

.audio-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--brown);
  margin-bottom: 14px;
}
.audio-icon { font-size: 1.2rem; }

.custom-audio-player {
  display: flex;
  align-items: center;
  gap: 14px;
  background: white;
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  box-shadow: var(--shadow-sm);
}

.play-pause-btn {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--orange), var(--orange-dark));
  border: none;
  color: white;
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--transition);
  box-shadow: 0 3px 10px rgba(224,123,57,0.4);
}
.play-pause-btn:hover { transform: scale(1.08); box-shadow: 0 5px 15px rgba(224,123,57,0.55); }

.progress-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.time-display {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  color: var(--text-light);
  font-weight: 600;
}
.time-sep { margin: 0 3px; }

.progress-bar-wrap {
  position: relative;
  cursor: pointer;
  padding: 6px 0;
}
.progress-bar-bg {
  height: 5px;
  background: #e8ddd0;
  border-radius: 999px;
  position: relative;
  overflow: visible;
}
.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--orange), var(--gold));
  border-radius: 999px;
  width: 0%;
  transition: width 0.1s linear;
}
.progress-thumb {
  position: absolute;
  top: 50%;
  left: 0%;
  transform: translate(-50%, -50%);
  width: 13px;
  height: 13px;
  background: var(--orange);
  border-radius: 50%;
  box-shadow: 0 0 0 3px rgba(224,123,57,0.25);
  transition: left 0.1s linear;
}

.volume-area {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}
.vol-icon {
  font-size: 1rem;
  cursor: pointer;
  user-select: none;
}
.vol-slider {
  -webkit-appearance: none;
  width: 70px;
  height: 4px;
  background: #e8ddd0;
  border-radius: 999px;
  outline: none;
  cursor: pointer;
}
.vol-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--orange);
  cursor: pointer;
}

/* Story Content */
.story-content {
  padding: 10px 40px 0;
}

.story-page {
  display: none;
}
.story-page.active {
  display: block;
  animation: pageFade 0.4s ease;
}
@keyframes pageFade {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.story-paragraph {
  font-family: var(--font-serif);
  font-size: 1.08rem;
  line-height: 1.85;
  color: var(--text-dark);
  text-align: justify;
  margin-bottom: 22px;
}

.story-paragraph:first-child::first-letter {
  font-size: 3rem;
  font-weight: 700;
  float: left;
  line-height: 0.85;
  margin-right: 8px;
  margin-top: 6px;
  color: var(--orange-dark);
  font-family: var(--font-sans);
}

/* Page Navigation */
.page-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 28px 40px 36px;
  gap: 12px;
}

.page-nav-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  background: none;
  border: 2px solid var(--orange);
  color: var(--orange-dark);
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
}
.page-nav-btn:hover:not(:disabled) {
  background: var(--orange);
  color: white;
  transform: scale(1.03);
}
.page-nav-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.page-indicator {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text-mid);
  background: var(--gold-light);
  padding: 8px 20px;
  border-radius: 999px;
  border: 1.5px solid rgba(240,192,96,0.4);
}

/* ===========================
   NO AUDIO STATE
=========================== */
.audio-section.no-audio {
  display: none;
}

/* ===========================
   RESPONSIVE
=========================== */
@media (max-width: 600px) {
  .lang-btn { padding: 16px 20px; }
  .lang-flag { font-size: 2.2rem; }
  .lang-name { font-size: 1.2rem; }
  .lang-desc { display: none; }

  .story-title-section { padding: 24px 20px 0; }
  .audio-section { margin: 20px 16px; }
  .story-content { padding: 10px 20px 0; }
  .page-nav { padding: 20px 16px 28px; }
  .page-nav-btn { padding: 8px 14px; font-size: 0.85rem; }
  .vol-slider { width: 50px; }

  .story-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 14px; }
}

@media (max-width: 400px) {
  .story-grid { grid-template-columns: 1fr; }
}

/* ===========================
   LOADING STATE
=========================== */
.loading-state {
  text-align: center;
  padding: 60px 20px;
  font-family: var(--font-sans);
  color: var(--text-light);
}
.loading-spinner {
  font-size: 2.5rem;
  animation: spin 1.5s linear infinite;
  display: block;
  margin-bottom: 12px;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ===========================
   EMPTY STATE
=========================== */
.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
}
.empty-icon { font-size: 3rem; margin-bottom: 12px; display: block; }
.empty-title {
  font-family: var(--font-sans);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-mid);
}