/* ==========================================================================
   Radha Poetry - Style Sheet
   Designed with storm gray, soft rain blue, and sunrise gold.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design System & CSS Variables
   -------------------------------------------------------------------------- */

:root {
  /* Default Mood: Stormy Gray */
  --bg-gradient-start: #232526;
  --bg-gradient-end: #414345;
  --color-storm: #6D6F73;
  --color-rain: #AFC7D8;
  --color-sunrise: #F2D8A7;
  
  --accent: var(--color-storm);
  --accent-glow: rgba(109, 111, 115, 0.3);
  
  --text-main: #f0f2f5;
  --text-muted: #cbd5e1;
  --glass-bg: rgba(30, 31, 33, 0.45);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-glow: rgba(255, 255, 255, 0.02);
  
  --font-serif: 'Cormorant Garamond', Georgia, serif;
  --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  
  --transition-smooth: 0.5s cubic-bezier(0.25, 0.8, 0.25, 1);
  --transition-fast: 0.2s ease;
}

/* Mood Adjustments */
body.mood-storm {
  --bg-gradient-start: #1b1c1e;
  --bg-gradient-end: #34363a;
  --accent: var(--color-storm);
  --accent-glow: rgba(109, 111, 115, 0.3);
  --glass-bg: rgba(25, 26, 28, 0.5);
  --glass-border: rgba(109, 111, 115, 0.15);
}

body.mood-rain {
  --bg-gradient-start: #111a24;
  --bg-gradient-end: #283747;
  --accent: var(--color-rain);
  --accent-glow: rgba(175, 199, 216, 0.3);
  --glass-bg: rgba(20, 28, 38, 0.45);
  --glass-border: rgba(175, 199, 216, 0.15);
}

body.mood-sunrise {
  --bg-gradient-start: #1c1912;
  --bg-gradient-end: #362e1d;
  --accent: var(--color-sunrise);
  --accent-glow: rgba(242, 216, 167, 0.3);
  --glass-bg: rgba(30, 25, 18, 0.5);
  --glass-border: rgba(242, 216, 167, 0.15);
}

/* --------------------------------------------------------------------------
   2. Base Styles & Resets
   -------------------------------------------------------------------------- */

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

html, body {
  width: 100%;
  min-height: 100vh;
  font-family: var(--font-sans);
  color: var(--text-main);
  background-color: #111;
  overflow-x: hidden;
  line-height: 1.6;
}

body {
  position: relative;
  transition: color var(--transition-smooth);
}

/* Fullscreen Background & Atmosphere */
#bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -2;
  transition: opacity 1s ease;
}

body::after {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: linear-gradient(to bottom, var(--bg-gradient-start), var(--bg-gradient-end));
  z-index: -3;
  transition: background var(--transition-smooth);
}

.overlay-fog {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: radial-gradient(circle at center, transparent 30%, rgba(0, 0, 0, 0.4) 100%);
  pointer-events: none;
  z-index: -1;
}

/* Scrollbar Customization */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.2);
}
::-webkit-scrollbar-thumb {
  background: var(--glass-border);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
}

/* --------------------------------------------------------------------------
   3. Typography & UI Elements
   -------------------------------------------------------------------------- */

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 300;
  letter-spacing: 0.02em;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition-fast), text-shadow var(--transition-fast);
}

a:hover {
  color: #fff;
  text-shadow: 0 0 8px var(--accent-glow);
}

.action-btn {
  display: inline-block;
  padding: 0.75rem 2rem;
  font-family: var(--font-sans);
  font-weight: 300;
  font-size: 0.95rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #fff;
  background: transparent;
  border: 1px solid var(--glass-border);
  border-radius: 4px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.glow-btn:hover {
  border-color: var(--accent);
  background-color: rgba(255, 255, 255, 0.02);
  box-shadow: 0 0 15px var(--accent-glow);
}

.text-link {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

/* Glassmorphism Panel Template */
.glass-panel {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(12px) saturate(110%);
  -webkit-backdrop-filter: blur(12px) saturate(110%);
  border-radius: 8px;
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.2);
  transition: border-color var(--transition-smooth), background-color var(--transition-smooth), box-shadow var(--transition-smooth);
}

/* --------------------------------------------------------------------------
   4. App Shell Layout (Header, Footer, Container)
   -------------------------------------------------------------------------- */

.app-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.app-header {
  height: 90px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--glass-border);
  margin-bottom: 2rem;
}

.header-logo .logo-link {
  display: flex;
  flex-direction: column;
}

.logo-title {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 300;
  color: #fff;
  letter-spacing: 0.1em;
}

.logo-subtitle {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 300;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-top: -3px;
}

.app-nav .nav-list {
  display: flex;
  list-style: none;
  gap: 2.5rem;
}

.nav-link {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 300;
  color: var(--text-muted);
  padding: 0.5rem 0;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--accent);
  transition: width var(--transition-fast);
}

.nav-link:hover {
  color: #fff;
}

.nav-link.active {
  color: var(--accent);
  font-weight: 400;
}

.nav-link.active::after {
  width: 100%;
}

/* Controls (Sound & Mood) */
.header-controls {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.control-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--glass-border);
  transition: border-color var(--transition-fast), color var(--transition-fast);
}

.control-btn:hover {
  color: #fff;
  border-color: var(--accent);
  box-shadow: 0 0 8px var(--accent-glow);
}

.sound-icon {
  width: 18px;
  height: 18px;
}

.mood-selector {
  display: flex;
  gap: 0.6rem;
  padding: 4px;
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  background: rgba(0, 0, 0, 0.1);
}

.mood-btn {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  opacity: 0.5;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.mood-btn:hover {
  opacity: 0.8;
  transform: scale(1.1);
}

.mood-btn.active {
  opacity: 1;
  transform: scale(1.2);
  box-shadow: 0 0 8px var(--accent-glow);
}

.mood-btn[data-mood="storm"] { background-color: var(--color-storm); }
.mood-btn[data-mood="rain"] { background-color: var(--color-rain); }
.mood-btn[data-mood="sunrise"] { background-color: var(--color-sunrise); }

/* Main layout content */
.app-content {
  flex: 1;
  padding-bottom: 4rem;
  position: relative;
}

.app-footer {
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-top: 1px solid var(--glass-border);
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.hidden {
  display: none !important;
}

/* --------------------------------------------------------------------------
   5. Home View Elements
   -------------------------------------------------------------------------- */

.hero-section {
  padding: 6rem 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.hero-tagline {
  font-size: 3.2rem;
  font-weight: 300;
  line-height: 1.25;
  margin-bottom: 2.5rem;
  max-width: 800px;
  color: #fff;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.featured-container {
  max-width: 650px;
  margin: 2rem auto 4rem auto;
}

.section-title-alt {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--text-muted);
  text-align: center;
  margin-bottom: 1rem;
}

.featured-card {
  padding: 2.5rem;
  position: relative;
  overflow: hidden;
}

.featured-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(to right, transparent, var(--accent), transparent);
}

.featured-card-header {
  margin-bottom: 1.5rem;
}

.featured-label {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  display: block;
  margin-bottom: 0.5rem;
}

.poem-title {
  font-size: 2rem;
  color: #fff;
}

.poem-excerpt {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  line-height: 1.8;
  color: var(--text-main);
  font-style: italic;
  margin-bottom: 2rem;
  opacity: 0.85;
}

.featured-card-footer {
  display: flex;
  justify-content: flex-end;
}

/* --------------------------------------------------------------------------
   6. Poems Gallery View
   -------------------------------------------------------------------------- */

.page-title {
  font-size: 2.8rem;
  font-weight: 300;
  text-align: center;
  color: #fff;
  margin-bottom: 0.5rem;
}

.page-subtitle {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--text-muted);
  text-align: center;
  margin-bottom: 3.5rem;
  letter-spacing: 0.05em;
}

.poems-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 2rem;
}

.poem-card {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 220px;
  cursor: pointer;
}

.poem-card:hover {
  border-color: var(--accent);
  box-shadow: 0 12px 40px 0 rgba(0, 0, 0, 0.3), 0 0 10px var(--accent-glow);
  transform: translateY(-2px);
}

.poem-card-header .poem-card-title {
  font-size: 1.6rem;
  color: #fff;
  margin-bottom: 0.75rem;
}

.poem-card-body {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-style: italic;
  color: var(--text-muted);
  opacity: 0.8;
  margin-bottom: 1.5rem;
}

.poem-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
}

.read-time {
  font-family: var(--font-sans);
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   7. Poem Detail View
   -------------------------------------------------------------------------- */

.poem-detail-container {
  max-width: 650px;
  margin: 0 auto;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.poem-full-display {
  padding: 3.5rem;
  text-align: center;
}

.poem-full-title {
  font-size: 2.6rem;
  color: #fff;
  margin-bottom: 3rem;
}

.poem-full-body {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  line-height: 2;
  font-style: italic;
  color: #fff;
  margin-bottom: 3.5rem;
  white-space: pre-line;
}

/* Inspiration Disclosure Accordion */
.inspiration-details {
  border-top: 1px solid var(--glass-border);
  padding-top: 2rem;
  text-align: left;
}

.inspiration-summary {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  user-select: none;
}

.inspiration-summary::-webkit-details-marker {
  display: none;
}

.inspiration-summary::before {
  content: '✦';
  font-size: 0.8rem;
  transition: transform var(--transition-fast) ease;
}

.inspiration-details[open] .inspiration-summary::before {
  transform: rotate(45deg);
}

.inspiration-content {
  margin-top: 1rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-main);
  font-style: normal;
}

/* --------------------------------------------------------------------------
   8. Bookstore & Commissions View
   -------------------------------------------------------------------------- */

.shop-nav {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 3rem;
  border-bottom: 1px solid var(--glass-border);
  padding-bottom: 0.5rem;
}

.shop-tab-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.75rem 1.5rem;
  cursor: pointer;
  border-radius: 4px 4px 0 0;
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.shop-tab-btn:hover {
  color: #fff;
}

.shop-tab-btn.active {
  color: var(--accent);
  border-bottom: 2px solid var(--accent);
  font-weight: 500;
}

.shop-panel {
  transition: opacity 0.3s ease;
}

/* Books Subpanel */
.books-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 3rem;
  max-width: 900px;
  margin: 0 auto;
}

.book-card {
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.book-cover-wrapper {
  perspective: 1000px;
  margin-bottom: 2rem;
}

.book-cover {
  width: 160px;
  height: 240px;
  border-radius: 2px 8px 8px 2px;
  position: relative;
  box-shadow: 10px 10px 20px rgba(0, 0, 0, 0.4), inset 3px 0 6px rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  transform: rotateY(-10deg);
  transition: transform 0.5s ease;
}

.book-card:hover .book-cover {
  transform: rotateY(-5deg) translateY(-5px);
}

.book-cover::after {
  content: '';
  position: absolute;
  top: 0;
  left: 6px;
  width: 2px;
  height: 100%;
  background: rgba(0, 0, 0, 0.25);
  box-shadow: 1px 0 3px rgba(255, 255, 255, 0.1);
}

.book-cover-rain {
  background: linear-gradient(135deg, #34495e, #1a252f);
  border: 1px solid rgba(175, 199, 216, 0.2);
}

.book-cover-stitch {
  background: linear-gradient(135deg, #2c3e50, #16a085);
  border: 1px solid rgba(242, 216, 167, 0.2);
}

.book-title-overlay {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  color: #fff;
  text-align: center;
}

.cover-author {
  font-family: var(--font-sans);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  opacity: 0.8;
}

.cover-title {
  font-size: 1.3rem;
  line-height: 1.3;
  margin: 1.5rem 0;
}

.cover-tag {
  font-family: var(--font-serif);
  font-size: 0.65rem;
  font-style: italic;
  opacity: 0.7;
}

.book-info {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
}

.book-title-display {
  font-size: 1.5rem;
  color: #fff;
  margin-bottom: 0.5rem;
}

.book-price {
  font-family: var(--font-sans);
  font-size: 1.25rem;
  font-weight: 300;
  color: var(--accent);
  margin-bottom: 1.25rem;
}

.book-description {
  font-size: 0.92rem;
  color: var(--text-main);
  margin-bottom: 2rem;
  line-height: 1.65;
}

.buy-btn {
  width: 100%;
  max-width: 200px;
}

/* Commissions Subpanel */
.commission-container {
  max-width: 700px;
  margin: 0 auto;
  padding: 3rem;
}

.commission-intro {
  text-align: center;
  margin-bottom: 2.5rem;
  border-bottom: 1px solid var(--glass-border);
  padding-bottom: 2rem;
}

.commission-intro h2 {
  font-size: 2rem;
  color: #fff;
  margin-bottom: 1rem;
}

.commission-intro p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}

.commission-price-notice {
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--accent);
  letter-spacing: 0.05em;
}

.shop-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

@media (max-width: 600px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

.form-group input, 
.form-group select, 
.form-group textarea {
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--glass-border);
  border-radius: 4px;
  padding: 0.8rem 1rem;
  color: #fff;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus, 
.form-group select:focus, 
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow);
}

.form-group select option {
  background-color: #222;
  color: #fff;
}

.form-submit-btn {
  margin-top: 1rem;
  width: 100%;
}

/* Tip Jar Subpanel */
.tip-jar-container {
  max-width: 500px;
  margin: 0 auto;
  padding: 3rem;
  text-align: center;
}

.tip-jar-container h2 {
  font-size: 2rem;
  color: #fff;
  margin-bottom: 1rem;
}

.tip-jar-container p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 2.5rem;
}

.raindrop-amounts {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.amount-btn {
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--glass-border);
  color: var(--text-muted);
  font-family: var(--font-sans);
  font-size: 1rem;
  padding: 0.75rem 1.5rem;
  border-radius: 4px;
  cursor: pointer;
  transition: border-color var(--transition-fast), color var(--transition-fast), background-color var(--transition-fast);
}

.amount-btn:hover {
  color: #fff;
  border-color: var(--accent);
}

.amount-btn.active {
  color: #fff;
  background-color: rgba(255, 255, 255, 0.03);
  border-color: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow);
}

.custom-amount-group {
  display: flex;
  align-items: center;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--glass-border);
  border-radius: 4px;
  padding: 0 1rem;
  max-width: 120px;
}

.custom-amount-group input {
  background: transparent;
  border: none;
  color: #fff;
  font-family: var(--font-sans);
  font-size: 1rem;
  width: 100%;
  padding: 0.75rem 0;
  text-align: center;
}

.custom-amount-group input:focus {
  outline: none;
}

.custom-amount-group:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow);
}

.currency-prefix {
  color: var(--text-muted);
  font-size: 1rem;
  margin-right: 0.25rem;
}

.tip-submit-btn {
  width: 100%;
}

/* --------------------------------------------------------------------------
   9. About Radha View
   -------------------------------------------------------------------------- */

.about-container {
  display: grid;
  grid-template-columns: 4.5fr 7.5fr;
  gap: 3.5rem;
  padding: 3.5rem;
  align-items: start;
}

@media (max-width: 800px) {
  .about-container {
    grid-template-columns: 1fr;
    padding: 2rem;
    gap: 2.5rem;
  }
}

.about-figure {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.about-portrait {
  width: 100%;
  height: auto;
  border-radius: 4px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  border: 1px solid var(--glass-border);
}

.about-caption {
  font-family: var(--font-serif);
  font-size: 0.85rem;
  font-style: italic;
  color: var(--text-muted);
  text-align: center;
}

.about-text-side {
  display: flex;
  flex-direction: column;
}

.about-title {
  font-size: 2.8rem;
  color: #fff;
  margin-bottom: 1.5rem;
  position: relative;
}

.about-title::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 60px;
  height: 2px;
  background-color: var(--accent);
}

.about-intro {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-style: italic;
  color: var(--accent);
  margin-bottom: 2rem;
  margin-top: 1rem;
}

.about-content p {
  color: var(--text-main);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.about-quote {
  margin: 2.5rem 0 1rem 0;
  padding-left: 1.5rem;
  border-left: 2px solid var(--accent);
}

.about-quote p {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-style: italic;
  color: #fff;
  line-height: 1.6;
  margin-bottom: 0.5rem;
}

.about-quote cite {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  font-style: normal;
  display: block;
}

/* --------------------------------------------------------------------------
   10. Stripe-like Mock Checkout Dialog Sheets
   -------------------------------------------------------------------------- */

dialog#checkout-modal {
  margin: auto;
  width: 90%;
  max-width: 440px;
  padding: 2.5rem;
  border: 1px solid var(--glass-border);
  color: var(--text-main);
  background: var(--glass-bg);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.7);
  overflow: hidden;
  position: relative;
}

dialog#checkout-modal::backdrop {
  background-color: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  transition: background-color 0.4s ease-out;
}

/* Dialog entry and exit animations using @starting-style */
dialog#checkout-modal[open] {
  opacity: 1;
  transform: scale(1);
  
  @starting-style {
    opacity: 0;
    transform: scale(0.95);
  }
}

dialog#checkout-modal {
  opacity: 0;
  transform: scale(0.95);
  transition: opacity 0.4s, transform 0.4s, display 0.4s allow-discrete, overlay 0.4s allow-discrete;
}

dialog#checkout-modal[open]::backdrop {
  background-color: rgba(0, 0, 0, 0.7);
  @starting-style {
    background-color: rgba(0, 0, 0, 0);
  }
}

dialog#checkout-modal::backdrop {
  background-color: rgba(0, 0, 0, 0);
  transition: background-color 0.4s ease-out, display 0.4s allow-discrete, overlay 0.4s allow-discrete;
}

/* Form layouts inside dialog */
.checkout-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.checkout-modal-header h2 {
  font-size: 1.6rem;
  color: #fff;
}

.close-modal-btn {
  background: transparent;
  border: none;
  font-size: 1.8rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: color var(--transition-fast);
}

.close-modal-btn:hover {
  color: #fff;
}

.checkout-item-summary {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.5rem 1rem;
  background: rgba(0, 0, 0, 0.2);
  border-radius: 4px;
  padding: 1rem;
  margin-bottom: 2rem;
  font-size: 0.9rem;
}

.checkout-item-label {
  color: var(--text-muted);
}

.checkout-item-val {
  color: #fff;
  font-weight: 500;
  text-align: right;
}

#checkout-item-price {
  color: var(--accent);
  font-size: 1.05rem;
}

.checkout-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.card-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.card-input-wrapper input {
  width: 100%;
  padding-right: 2.5rem;
}

.card-brand-icon {
  position: absolute;
  right: 12px;
  font-size: 1.2rem;
  opacity: 0.6;
}

.checkout-pay-btn {
  width: 100%;
  margin-top: 1rem;
}

/* Loading & Success Overlays */
.checkout-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2.5rem;
  text-align: center;
  z-index: 10;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.checkout-overlay:not(.hidden) {
  opacity: 1;
  pointer-events: auto;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(255, 255, 255, 0.1);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 1.5rem;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Success Checkmark Animation */
.success-checkmark {
  width: 60px;
  height: 60px;
  margin: 0 auto 1.5rem auto;
}

.checkmark__circle {
  stroke-dasharray: 166;
  stroke-dashoffset: 166;
  stroke-width: 2;
  stroke-miterlimit: 10;
  stroke: var(--accent);
  fill: none;
  animation: stroke 0.6s cubic-bezier(0.65, 0, 0.45, 1) forwards;
}

.checkmark__check {
  transform-origin: 50% 50%;
  stroke-dasharray: 48;
  stroke-dashoffset: 48;
  stroke-width: 3;
  stroke-linecap: round;
  stroke: var(--accent);
  fill: none;
  animation: stroke 0.3s cubic-bezier(0.65, 0, 0.45, 1) 0.6s forwards;
}

@keyframes stroke {
  100% { stroke-dashoffset: 0; }
}

#checkout-success h3 {
  font-size: 1.8rem;
  color: #fff;
  margin-bottom: 0.5rem;
}

#checkout-success p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 2rem;
}

#checkout-success-close {
  width: 150px;
}

/* --------------------------------------------------------------------------
   11. Single Page Application View Transitions
   -------------------------------------------------------------------------- */

/* Standard slide-in-out directions */
@keyframes slide-to-left {
  to { transform: translateX(-6%); opacity: 0; }
}
@keyframes slide-from-right {
  from { transform: translateX(6%); opacity: 0; }
}
@keyframes slide-to-right {
  to { transform: translateX(6%); opacity: 0; }
}
@keyframes slide-from-left {
  from { transform: translateX(-6%); opacity: 0; }
}

/* View transitions root animations */
::view-transition-group(root) {
  animation: 0.5s cubic-bezier(0.25, 1, 0.5, 1) both;
}

/* Forward transition: slide next page in from right, exit old page to left */
html:active-view-transition-type(forward)::view-transition-old(root) {
  animation-name: slide-to-left;
}
html:active-view-transition-type(forward)::view-transition-new(root) {
  animation-name: slide-from-right;
}

/* Backward transition: slide previous page in from left, exit current to right */
html:active-view-transition-type(backward)::view-transition-old(root) {
  animation-name: slide-to-right;
}
html:active-view-transition-type(backward)::view-transition-new(root) {
  animation-name: slide-from-left;
}

/* Support for user system preferences */
  dialog#checkout-modal,
  dialog#checkout-modal[open],
  dialog#checkout-modal::backdrop,
  dialog#checkout-modal[open]::backdrop {
    transform: none !important;
    transition-duration: 0.1s !important;
  }
}

/* --------------------------------------------------------------------------
   12. Home Page Bookstore Promo & Kindle Links
   -------------------------------------------------------------------------- */

.home-shop-promo {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 2.5rem;
  max-width: 650px;
  margin: 3rem auto 0 auto;
  gap: 2rem;
}

@media (max-width: 600px) {
  .home-shop-promo {
    flex-direction: column;
    text-align: center;
    padding: 2rem;
  }
}

.promo-text h3 {
  font-size: 1.6rem;
  color: #fff;
  margin-bottom: 0.5rem;
}

.promo-text p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.book-purchase-group {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.8rem;
  margin-top: 1rem;
}

.book-external-link {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.book-external-link:hover {
  color: var(--accent);
}

/* --------------------------------------------------------------------------
   13. Recital Player (Poem Detail Page)
   -------------------------------------------------------------------------- */

.recital-player {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--glass-border);
  border-radius: 30px;
  padding: 0.6rem 1.5rem;
  margin-bottom: 2.5rem;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.play-recital-btn {
  background: var(--accent);
  border: none;
  color: #111;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 0 10px var(--accent-glow);
  transition: transform var(--transition-fast) ease, background var(--transition-fast) ease;
}

.play-recital-btn:hover {
  transform: scale(1.08);
  background: #fff;
}

.play-recital-btn svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

.recital-info {
  display: flex;
  flex-direction: column;
  flex: 1;
}

.recital-label {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: -2px;
}

.recital-track {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.recital-progress-bar {
  flex: 1;
  height: 3px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 2px;
  position: relative;
  cursor: pointer;
}

.recital-progress {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 0%;
  background: var(--accent);
  border-radius: 2px;
  box-shadow: 0 0 5px var(--accent);
}

.recital-time {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  color: var(--text-muted);
  min-width: 35px;
}

.recital-wave {
  display: flex;
  align-items: center;
  gap: 3px;
  height: 20px;
  width: 40px;
}

.wave-bar {
  flex: 1;
  height: 4px;
  background: var(--accent);
  border-radius: 1px;
  transition: height 0.15s ease;
}

.wave-bar.playing {
  animation: bounce-wave 0.8s ease-in-out infinite alternate;
}

.wave-bar:nth-child(2).playing { animation-delay: 0.15s; }
.wave-bar:nth-child(3).playing { animation-delay: 0.3s; }
.wave-bar:nth-child(4).playing { animation-delay: 0.45s; }

@keyframes bounce-wave {
  0% { height: 4px; }
  100% { height: 18px; }
}

/* --------------------------------------------------------------------------
   14. Radha's Writing Chamber
   -------------------------------------------------------------------------- */

.chamber-container {
  max-width: 700px;
  margin: 0 auto;
  padding: 2.5rem;
}

.prompter-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--glass-border);
}

.prompter-btn {
  padding: 0.5rem 1.5rem;
  font-size: 0.85rem;
}

.prompt-text {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-style: italic;
  text-align: center;
  color: #fff;
  max-width: 550px;
  line-height: 1.5;
  text-shadow: 0 1px 4px rgba(0,0,0,0.2);
}

.typewriter-paper {
  background: #fdfaf2;
  color: #2c251b;
  border-radius: 4px;
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.45), inset 0 0 10px rgba(0,0,0,0.05);
  display: flex;
  margin: 2rem 0;
  min-height: 420px;
  border: 1px solid rgba(0, 0, 0, 0.15);
  overflow: hidden;
  position: relative;
}

.paper-margin {
  width: 45px;
  background: transparent;
  flex-shrink: 0;
}

.margin-left {
  border-right: 1px solid rgba(255, 100, 100, 0.25);
}

.paper-body {
  flex: 1;
  padding: 2.5rem 2rem 2.5rem 1.5rem;
  background-image: linear-gradient(rgba(44, 37, 27, 0.04) 1px, transparent 1px);
  background-size: 100% 28px;
  line-height: 28px;
}

.typewriter-title-input {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 500;
  background: transparent !important;
  border: none !important;
  color: #2c251b !important;
  width: 100%;
  margin-bottom: 1rem;
  padding: 0 !important;
  outline: none !important;
  box-shadow: none !important;
}

.typewriter-textarea-input {
  font-family: 'Courier New', Courier, monospace;
  font-weight: bold;
  font-size: 1.1rem;
  line-height: 28px;
  background: transparent !important;
  border: none !important;
  color: #3b3020 !important;
  width: 100%;
  resize: vertical;
  min-height: 320px;
  overflow: hidden;
  padding: 0 !important;
  outline: none !important;
  box-shadow: none !important;
}

.chamber-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 1.5rem;
}

@media (max-width: 500px) {
  .chamber-controls {
    flex-direction: column;
    gap: 1rem;
    align-items: center;
  }
}

.chamber-stats {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--text-muted);
}

.chamber-actions {
  display: flex;
  gap: 1rem;
}

.secondary-action-btn:hover {
  border-color: var(--text-muted);
  box-shadow: none;
}

/* --------------------------------------------------------------------------
   15. Soundscape Popover Mixer & Status
   -------------------------------------------------------------------------- */

.sound-status-text {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  opacity: 0;
  transform: translateX(10px);
  transition: opacity 0.5s ease, transform 0.5s ease;
  margin-right: 0.75rem;
  pointer-events: none;
  display: inline-block;
  vertical-align: middle;
  text-transform: capitalize;
  max-width: 220px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sound-status-text.visible {
  opacity: 0.85;
  transform: translateX(0);
}

.soundscape-popover {
  padding: 1.25rem;
  width: 250px;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  backdrop-filter: blur(20px) saturate(120%);
  -webkit-backdrop-filter: blur(20px) saturate(120%);
  color: #fff;
  border-radius: 8px;
  
  /* Popover absolute layout anchoring */
  position: absolute;
  top: 90px;
  right: 180px;
  margin: 0;
  inset: auto; /* reset default inset behavior */
  
  transition: opacity 0.3s, transform 0.3s, display 0.3s allow-discrete, overlay 0.3s allow-discrete;
  opacity: 0;
  transform: translateY(-10px) scale(0.95);
}

.soundscape-popover:popover-open {
  opacity: 1;
  transform: translateY(0) scale(1);
  display: flex;
  
  @starting-style {
    opacity: 0;
    transform: translateY(-10px) scale(0.95);
  }
}

.popover-title-text {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  border-bottom: 1px solid var(--glass-border);
  padding-bottom: 0.5rem;
  margin-bottom: 0.25rem;
}

.sound-control-row {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  width: 100%;
}

.sound-control-row label {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.sound-control-row input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
  background: rgba(255, 255, 255, 0.05);
  border-radius: 4px;
  height: 6px;
  cursor: pointer;
  outline: none;
}

.toggle-label-checkbox {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  cursor: pointer;
  color: var(--text-main) !important;
  font-size: 0.85rem !important;
  text-transform: none !important;
  letter-spacing: 0px !important;
}

.toggle-label-checkbox input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
  cursor: pointer;
}

@media (max-width: 768px) {
  .sound-status-text {
    display: none;
  }
  .soundscape-popover {
    right: 20px;
    top: 80px;
    width: calc(100vw - 40px);
    max-width: 260px;
  }
}