/* style.css - Premium Design System for M.3 English Shadowing App */

/* Google Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Sarabun:wght@300;400;500;600;700&display=swap');

/* CSS Custom Properties (Variables) */
:root {
  /* Colors */
  --bg-primary: #06050c;
  --bg-secondary: #0b0a1a;
  --panel-bg: rgba(14, 12, 33, 0.7);
  --panel-border: rgba(99, 102, 241, 0.18);
  --panel-border-glow: rgba(99, 102, 241, 0.35);
  
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #64748b;
  
  --color-primary: #6366f1;       /* Royal Purple */
  --color-primary-glow: rgba(99, 102, 241, 0.45);
  --color-secondary: #06b6d4;     /* Electric Teal */
  --color-secondary-glow: rgba(6, 182, 212, 0.4);
  
  /* State Colors */
  --state-idle: #64748b;          /* Slate Grey */
  --state-listen: #0ea5e9;        /* Deep Sky Blue */
  --state-listen-glow: rgba(14, 165, 233, 0.45);
  --state-speak: #10b981;         /* Emerald Mint Green */
  --state-speak-glow: rgba(16, 185, 129, 0.45);
  --state-chime: #eab308;         /* Amber Gold */
  
  /* Subject Colors */
  --color-science: #f43f5e;       /* Rose Red */
  --color-math: #a855f7;          /* Purple */
  --color-social: #f97316;        /* Orange */
  --color-english: #10b981;       /* Green */
  
  /* Fonts */
  --font-en: 'Outfit', -apple-system, sans-serif;
  --font-th: 'Sarabun', sans-serif;
  
  /* Border Radius & Shadows */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --shadow-sm: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  --shadow-md: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 20px 25px -5px rgb(0 0 0 / 0.4), 0 8px 10px -6px rgb(0 0 0 / 0.4);
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Global Resets & Body */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-en);
  background-color: var(--bg-primary);
  background-image: 
    radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.14) 0%, transparent 40%),
    radial-gradient(circle at 90% 80%, rgba(6, 182, 212, 0.12) 0%, transparent 40%),
    radial-gradient(circle at 50% 50%, rgba(11, 10, 26, 1) 0%, rgba(6, 5, 12, 1) 100%);
  background-attachment: fixed;
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
}

/* App Container & Header */
.app-container {
  width: 100%;
  max-width: 1300px;
  margin: 0 auto;
  padding: 1.5rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.logo-section {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 800;
  font-size: 1.25rem;
  box-shadow: 0 0 15px var(--color-primary-glow);
}

.logo-text h1 {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  background: linear-gradient(to right, #ffffff, #c7d2fe);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-text span {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-family: var(--font-th);
  display: block;
}

/* VIEW 1: Dashboard View (Week Selector) */
.dashboard-view {
  animation: fadeIn var(--transition-normal);
}

/* Welcome Hero Deck (Glassmorphic Container) */
.welcome-hero {
  background: linear-gradient(135deg, rgba(20, 18, 48, 0.45) 0%, rgba(9, 8, 22, 0.75) 100%);
  border: 1px solid rgba(99, 102, 241, 0.22);
  border-radius: 24px;
  padding: 2.75rem;
  margin-bottom: 2.75rem;
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(20px);
  display: flex;
  gap: 2.5rem;
  align-items: stretch;
}

.welcome-hero::before {
  content: '';
  position: absolute;
  top: -10%;
  right: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.18) 0%, transparent 70%);
  pointer-events: none;
  filter: blur(40px);
}

.welcome-hero::after {
  content: '';
  position: absolute;
  bottom: -15%;
  left: -5%;
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.16) 0%, transparent 70%);
  pointer-events: none;
  filter: blur(40px);
}

.hero-main-info {
  flex: 1.6;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  z-index: 2;
}

.hero-badge {
  display: inline-block;
  align-self: flex-start;
  font-size: 0.75rem;
  font-weight: 800;
  color: #a5b4fc;
  background: linear-gradient(90deg, rgba(99, 102, 241, 0.22), rgba(6, 182, 212, 0.15));
  border: 1px solid rgba(99, 102, 241, 0.35);
  padding: 0.3rem 0.85rem;
  border-radius: 20px;
  letter-spacing: 1.5px;
  margin-bottom: 1.25rem;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.1);
}

.welcome-title {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -1px;
  background: linear-gradient(135deg, #ffffff 40%, #c7d2fe 70%, #818cf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0.35rem;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.welcome-subtitle {
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: 1.25rem;
  letter-spacing: -0.5px;
}

.welcome-desc {
  font-family: var(--font-th);
  font-size: 0.98rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 2rem;
  opacity: 0.9;
}

/* Shadowing Process Flow Timeline */
.flow-guide {
  background: rgba(5, 4, 12, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.05);
  padding: 1.25rem 1.5rem;
  border-radius: 18px;
  box-shadow: inset 0 2px 4px rgba(0,0,0,0.2);
}

.flow-guide-title {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.flow-guide-title span {
  font-family: var(--font-th);
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
}

.flow-steps {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.flow-step {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex: 1;
}

.flow-icon {
  font-size: 1.25rem;
  width: 38px;
  height: 38px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 10px rgba(0,0,0,0.3);
  flex-shrink: 0;
}

.flow-content h5 {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-primary);
}

.flow-content p {
  font-family: var(--font-th);
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 1px;
  white-space: nowrap;
}

.flow-step-arrow {
  color: rgba(255, 255, 255, 0.15);
  display: flex;
  align-items: center;
  padding: 0 0.25rem;
}

/* Statistics Right Panel */
.hero-stats-panel {
  flex: 1;
  background: rgba(5, 4, 12, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.05);
  padding: 1.75rem;
  border-radius: 20px;
  display: flex;
  flex-direction: column;
  z-index: 2;
  box-shadow: inset 0 2px 8px rgba(0,0,0,0.3);
}

.stats-panel-title {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.stats-panel-title span {
  font-family: var(--font-th);
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
  display: block;
  margin-top: 2px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  flex-grow: 1;
}

.stat-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: 14px;
  padding: 1.15rem 1rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.stat-card:hover {
  background: rgba(99, 102, 241, 0.06);
  border-color: rgba(99, 102, 241, 0.22);
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(99, 102, 241, 0.08);
}

.stat-num {
  font-size: 2.1rem;
  font-weight: 800;
  line-height: 1;
  margin-bottom: 0.35rem;
  background: linear-gradient(135deg, var(--color-secondary), var(--color-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.25;
}

.stat-label span {
  font-family: var(--font-th);
  font-size: 0.7rem;
  font-weight: 400;
  color: var(--text-muted);
}

/* Section Header */
.section-heading {
  font-size: 1.45rem;
  font-weight: 700;
  margin-bottom: 1.75rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  letter-spacing: -0.3px;
}

.section-heading span {
  font-family: var(--font-th);
  font-size: 0.95rem;
  color: var(--text-secondary);
  font-weight: 400;
}

/* Redesigned Weeks Grid & Cards */
.weeks-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(480px, 1fr));
  gap: 2.5rem;
  margin-bottom: 3.5rem;
}

.week-card {
  background: linear-gradient(135deg, rgba(14, 12, 38, 0.8) 0%, rgba(7, 6, 18, 0.95) 100%);
  border: 1px solid rgba(99, 102, 241, 0.16);
  border-radius: 24px;
  padding: 2.25rem;
  cursor: pointer;
  transition: all 0.45s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(16px);
  width: 100%;
  min-height: 380px;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.35);
  opacity: 0;
  transform: translateY(20px);
  animation: slideUpFade 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.week-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 85% 15%, rgba(99, 102, 241, 0.14) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}

.week-card:hover {
  transform: translateY(-8px);
  border-color: rgba(99, 102, 241, 0.45);
  box-shadow: 0 25px 50px rgba(99, 102, 241, 0.22), inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

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

/* Custom indicator border effect */
.week-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: linear-gradient(to right, var(--color-secondary), var(--color-primary));
  opacity: 0.7;
  transform: scaleX(0.4);
  transform-origin: left;
  transition: transform 0.45s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.45s;
}

.week-card:hover::after {
  transform: scaleX(1);
  opacity: 1;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

.card-title-group {
  flex: 1;
}

.card-week-num {
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--color-secondary);
  margin-bottom: 0.4rem;
  display: block;
}

.card-title-en {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.25;
  letter-spacing: -0.3px;
}

.card-title-th {
  font-family: var(--font-th);
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-top: 0.25rem;
  opacity: 0.8;
}

.card-icon-wrapper {
  width: 58px;
  height: 58px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  flex-shrink: 0;
  box-shadow: 0 6px 15px rgba(0,0,0,0.2);
}

.week-card:hover .card-icon-wrapper {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.16);
  transform: scale(1.08) rotate(3deg);
  box-shadow: 0 8px 20px rgba(0,0,0,0.3);
}

.week-card-icon {
  width: 36px;
  height: 36px;
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.3));
  transition: all 0.4s ease;
}

.week-card:hover .week-card-icon {
  filter: drop-shadow(0 6px 12px var(--color-primary-glow));
}

.card-body {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-bottom: 1.75rem;
}

.card-description {
  font-family: var(--font-th);
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  opacity: 0.85;
}

.card-topics-list {
  font-size: 0.8rem;
  background: rgba(5, 4, 12, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.03);
  padding: 0.65rem 1.15rem;
  border-radius: 12px;
  line-height: 1.4;
  box-shadow: inset 0 1px 3px rgba(0,0,0,0.3);
}

.card-topics-list strong {
  color: var(--text-primary);
  font-weight: 700;
  margin-right: 0.25rem;
}

.card-topics-list span {
  color: var(--text-secondary);
  opacity: 0.95;
}

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 1.25rem;
  margin-bottom: 1.25rem;
}

.card-meta {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
}

.badge {
  font-size: 0.7rem;
  padding: 0.25rem 0.55rem;
  border-radius: 6px;
  font-weight: 700;
  letter-spacing: 0.5px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  color: var(--text-secondary);
}

.badge.science-badge { border-color: rgba(244, 63, 94, 0.25); color: var(--color-science); }
.badge.math-badge { border-color: rgba(168, 85, 247, 0.25); color: var(--color-math); }
.badge.social-badge { border-color: rgba(249, 115, 22, 0.25); color: var(--color-social); }
.badge.english-badge { border-color: rgba(16, 185, 129, 0.25); color: var(--color-english); }

.card-lesson-specs {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.specs-dot {
  width: 4px;
  height: 4px;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  display: inline-block;
}

/* Action Button at the bottom of the card */
.card-action-btn {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(99, 102, 241, 0.06);
  border: 1px solid rgba(99, 102, 241, 0.18);
  padding: 0.85rem 1.35rem;
  border-radius: 14px;
  color: var(--text-primary);
  font-size: 0.85rem;
  font-weight: 700;
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.action-arrow {
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.week-card:hover .card-action-btn {
  background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  border-color: transparent;
  color: #ffffff;
  box-shadow: 0 10px 25px rgba(99, 102, 241, 0.35);
}

.week-card:hover .action-arrow {
  transform: translateX(5px);
}

/* VIEW 2: Interactive Presentation Slide Player */
.player-view {
  flex-direction: column;
  flex-grow: 1;
  animation: fadeIn var(--transition-normal);
}

/* Top Slide Progress Dots (22 slides) */
.slide-progress-container {
  width: 100%;
  margin-bottom: 1.25rem;
  padding: 0.5rem 0;
  overflow-x: auto;
}

.slide-track {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-width: 900px;
  gap: 0.5rem;
  padding: 0.25rem;
}

.slide-dot {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--panel-bg);
  border: 1.5px solid var(--panel-border);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-fast);
  user-select: none;
}

.slide-dot:hover {
  transform: scale(1.15);
  border-color: var(--color-secondary);
  box-shadow: 0 0 8px var(--color-secondary-glow);
}

.slide-dot.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
  transform: scale(1.25);
  box-shadow: 0 0 12px var(--color-primary-glow);
}

.slide-dot.completed {
  background: rgba(16, 185, 129, 0.12);
  border-color: var(--state-speak);
  color: var(--state-speak);
}

/* Presentation Screen (Centered Presentation Card) */
.presentation-screen {
  background: var(--panel-bg);
  border: 2px solid var(--panel-border);
  border-radius: var(--radius-xl);
  min-height: 480px;
  padding: 3.5rem;
  margin-bottom: 1.5rem;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-lg);
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.presentation-screen.listen-active {
  border-color: var(--state-listen);
  box-shadow: 0 0 30px var(--state-listen-glow);
}

.presentation-screen.speak-active {
  border-color: var(--state-speak);
  box-shadow: 0 0 30px var(--state-speak-glow);
}

/* Background Ambient Glow Circles */
.visualizer-container {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 480px;
  height: 480px;
  pointer-events: none;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.pulse-circle {
  position: absolute;
  border-radius: 50%;
  width: 200px;
  height: 200px;
  border: 2px solid transparent;
  opacity: 0.12;
  transition: all var(--transition-normal);
}

.listen-active .pulse-circle {
  border-color: var(--state-listen);
  animation: ringExpand 2.5s cubic-bezier(0.16, 1, 0.3, 1) infinite;
}

.speak-active .pulse-circle {
  border-color: var(--state-speak);
  animation: ringExpand 2s cubic-bezier(0.16, 1, 0.3, 1) infinite;
}

.pulse-circle:nth-child(2) { animation-delay: 0.8s; }
.pulse-circle:nth-child(3) { animation-delay: 1.6s; }

/* Dynamic Slide Layouts Container */
.slide-container {
  width: 100%;
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  animation: slideFadeIn 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* --- Slide Type Styles --- */

/* 1. Title Slide */
.slide-title-layout {
  text-align: center;
  max-width: 850px;
}

.slide-title-text {
  font-size: 2.35rem;
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, #ffffff 30%, #a5b4fc 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 1.5rem;
  text-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

.slide-title-sub {
  font-family: var(--font-th);
  font-size: 1.25rem;
  color: var(--text-secondary);
  line-height: 1.6;
  opacity: 0.85;
}

/* 2. Week Intro Slide */
.slide-week-layout {
  text-align: center;
}

.slide-week-title {
  font-size: 5rem;
  font-weight: 800;
  letter-spacing: -1px;
  background: linear-gradient(to right, #818cf8, #22d3ee);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 1rem;
}

.slide-week-subtitle {
  font-family: var(--font-th);
  font-size: 1.8rem;
  font-weight: 500;
  color: var(--text-primary);
  opacity: 0.9;
}

/* 3. Step Intro Slide */
.slide-step-layout {
  text-align: center;
}

.slide-step-num {
  font-size: 1.2rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--color-secondary);
  margin-bottom: 0.5rem;
}

.slide-step-title {
  font-size: 4rem;
  font-weight: 800;
  color: white;
  margin-bottom: 1.25rem;
}

.slide-step-desc {
  font-family: var(--font-th);
  font-size: 1.35rem;
  color: var(--text-secondary);
  max-width: 600px;
  line-height: 1.6;
}

/* 4. Subject Title Slide */
.slide-subject-layout {
  text-align: center;
}

.slide-subject-title {
  font-size: 5.5rem;
  font-weight: 800;
  letter-spacing: -1px;
  text-transform: uppercase;
  margin-bottom: 1rem;
  filter: drop-shadow(0 0 15px rgba(255, 255, 255, 0.1));
}

.slide-subject-title.science-color {
  background: linear-gradient(135deg, #ffffff, var(--color-science));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.slide-subject-title.math-color {
  background: linear-gradient(135deg, #ffffff, var(--color-math));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.slide-subject-title.social-color {
  background: linear-gradient(135deg, #ffffff, var(--color-social));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.slide-subject-title.english-color {
  background: linear-gradient(135deg, #ffffff, var(--color-english));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.slide-subject-subtitle {
  font-family: var(--font-th);
  font-size: 1.25rem;
  color: var(--text-secondary);
  letter-spacing: 0.5px;
}

/* 5. Vocabulary Presentation Slide */
.slide-vocab-layout {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
}

.vocab-subject-badge {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  padding: 0.35rem 1rem;
  border-radius: 20px;
  margin-bottom: 1.5rem;
  border: 1.5px solid transparent;
}

.vocab-word-large {
  font-size: 4.5rem;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 0.5rem;
  background: linear-gradient(to bottom, #ffffff, #e2e8f0);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 10px 15px rgba(0, 0, 0, 0.2));
}

.vocab-meta-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.vocab-pos {
  font-style: italic;
  font-size: 1.1rem;
  color: var(--text-secondary);
}

.vocab-ipa {
  font-size: 1.2rem;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.04);
  padding: 0.15rem 0.6rem;
  border-radius: 6px;
  font-weight: 500;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

/* spelling track visualization */
.spelling-track {
  display: flex;
  gap: 0.35rem;
  margin-bottom: 1.5rem;
  padding: 0.25rem;
}

.spelling-letter {
  display: inline-block;
  font-size: 1.6rem;
  font-weight: 800;
  width: 38px;
  height: 44px;
  line-height: 42px;
  text-align: center;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  color: var(--text-muted);
  transition: all 0.12s ease;
  user-select: none;
}

.spelling-letter.active {
  background: rgba(6, 182, 212, 0.18);
  border-color: var(--color-secondary);
  color: #ffffff;
  transform: scale(1.18);
  box-shadow: 0 0 12px var(--color-secondary-glow);
}

.vocab-translation {
  font-family: var(--font-th);
  font-size: 2.1rem;
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: 1.5rem;
}

.vocab-sentence-box {
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.75rem;
  max-width: 800px;
  width: 100%;
  text-align: center;
  backdrop-filter: blur(8px);
}

.vocab-sentence-en {
  font-size: 1.25rem;
  line-height: 1.5;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 0.4rem;
}

.vocab-sentence-th {
  font-family: var(--font-th);
  font-size: 1.05rem;
  line-height: 1.5;
  color: var(--text-secondary);
}

/* 6. Passage Sentence Slide */
.slide-passage-layout {
  width: 100%;
  max-width: 800px;
}

.passage-step-label {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-secondary);
  letter-spacing: 1.5px;
  margin-bottom: 1.5rem;
  text-align: center;
  display: block;
}

.passage-sentence-en {
  font-size: 2.1rem;
  line-height: 1.5;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2rem;
  text-align: center;
  text-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.passage-sentence-th {
  font-family: var(--font-th);
  font-size: 1.45rem;
  line-height: 1.6;
  color: var(--text-secondary);
  text-align: center;
  padding: 1rem 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  max-width: 700px;
  margin: 0 auto;
}

/* 7. Writing Task Slide */
.slide-writing-layout {
  width: 100%;
  max-width: 1100px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.writing-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 1.25rem;
  background: linear-gradient(135deg, #ffffff, var(--color-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-align: center;
}

.writing-instruction-banner {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  background: rgba(99, 102, 241, 0.08);
  border: 1px solid rgba(99, 102, 241, 0.22);
  border-radius: 16px;
  padding: 1rem 1.5rem;
  margin-bottom: 2rem;
  max-width: 900px;
  width: 100%;
}

.writing-icon {
  font-size: 2rem;
  animation: floatAnim 3s ease-in-out infinite;
  display: inline-block;
}

.writing-desc {
  font-family: var(--font-th);
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.writing-desc strong {
  color: var(--color-secondary);
  font-weight: 700;
}

.writing-split-grid {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 2rem;
  width: 100%;
}

.writing-grid-column {
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 20px;
  padding: 1.5rem;
  backdrop-filter: blur(10px);
}

.writing-grid-column h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  color: var(--color-secondary);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding-bottom: 0.5rem;
}

.vocab-words-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
}

.vocab-word-item {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 10px;
  padding: 0.4rem 0.6rem;
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  transition: all var(--transition-fast);
}

.vocab-word-item:hover {
  background: rgba(99, 102, 241, 0.08);
  border-color: rgba(99, 102, 241, 0.25);
  transform: translateY(-1px);
}

.vocab-word-item .word-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.vocab-word-item .word-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.vocab-word-item .word-th {
  font-family: var(--font-th);
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 0.1rem;
}

.passage-block {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 12px;
  padding: 1.15rem;
  transition: all var(--transition-fast);
}

.passage-block:hover {
  background: rgba(99, 102, 241, 0.04);
  border-color: rgba(99, 102, 241, 0.15);
}

.passage-block-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.25rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.passage-block-text {
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.4;
  margin-bottom: 0.25rem;
}

.passage-block-th {
  font-family: var(--font-th);
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

@keyframes floatAnim {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-5px); }
  100% { transform: translateY(0px); }
}

@media (max-width: 900px) {
  .writing-split-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

/* Dynamic State Floating Visualizer Overlay */
.visual-state-overlay {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  z-index: 5;
}

.state-pill {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 1.15rem;
  border-radius: 20px;
  font-weight: 700;
  font-size: 0.85rem;
  transition: all var(--transition-fast);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.state-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.state-pill.idle {
  background: rgba(100, 116, 139, 0.12);
  border: 1px solid var(--state-idle);
  color: var(--state-idle);
}
.state-pill.idle .state-dot { background: var(--state-idle); }

.state-pill.listen {
  background: rgba(14, 165, 233, 0.12);
  border: 1px solid var(--state-listen);
  color: var(--state-listen);
  box-shadow: 0 0 10px rgba(14, 165, 233, 0.15);
}
.state-pill.listen .state-dot {
  background: var(--state-listen);
  animation: pulseGlow 1.5s infinite;
}

.state-pill.speak {
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid var(--state-speak);
  color: var(--state-speak);
  box-shadow: 0 0 10px rgba(16, 185, 129, 0.15);
}
.state-pill.speak .state-dot {
  background: var(--state-speak);
  animation: pulseGlowGreen 1.5s infinite;
}

.round-counter-badge {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 0.45rem 0.85rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-secondary);
}

/* Classroom Controller Console (Bottom Panel) */
.classroom-console {
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-md);
}

.console-controls {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1.5rem;
}

.console-divider {
  height: 1px;
  background: rgba(255, 255, 255, 0.06);
  width: 100%;
}

.console-settings {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.setting-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.setting-item label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  white-space: nowrap;
}

.console-select {
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  padding: 0.45rem 0.75rem;
  color: var(--text-primary);
  font-family: var(--font-en);
  font-size: 0.8rem;
  outline: none;
  cursor: pointer;
}

.console-select:focus {
  border-color: var(--color-primary);
}

.console-range {
  background: rgba(255, 255, 255, 0.08);
  height: 6px;
  border-radius: 4px;
  outline: none;
  width: 100px;
  accent-color: var(--color-secondary);
  cursor: pointer;
}

.speed-display {
  font-weight: 700;
  color: var(--color-secondary);
}

/* UI Buttons */
.btn {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-md);
  font-family: var(--font-en);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: all var(--transition-fast);
  outline: none;
  user-select: none;
}

.btn:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.18);
  transform: translateY(-1px);
}

.btn-round {
  width: 46px;
  height: 46px;
  padding: 0;
  border-radius: 50%;
  justify-content: center;
}

.btn-play-pause {
  width: 52px;
  height: 52px;
  background: #ffffff;
  color: #000000;
  border: none;
  box-shadow: 0 4px 15px rgba(255, 255, 255, 0.2);
}

.btn-play-pause:hover {
  background: #f1f5f9;
  transform: scale(1.06);
}

.btn-play-pause svg {
  fill: currentColor;
}

/* Toggle Switch */
.auto-play-toggle {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  cursor: pointer;
  user-select: none;
}

.toggle-switch {
  position: relative;
  display: inline-block;
  width: 42px;
  height: 22px;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: .3s;
  border-radius: 20px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 14px;
  width: 14px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: .3s;
  border-radius: 50%;
}

input:checked + .slider {
  background-color: var(--color-primary);
}

input:checked + .slider:before {
  transform: translateX(20px);
}

.toggle-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
}

/* Footer styling */
footer {
  margin-top: auto;
  text-align: center;
  padding: 1.5rem 0;
  font-size: 0.8rem;
  color: var(--text-muted);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  font-family: var(--font-th);
}

/* Keyframe Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideFadeIn {
  from { opacity: 0; transform: scale(0.98) translateY(4px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

@keyframes pulseGlow {
  0% { box-shadow: 0 0 0 0 rgba(14, 165, 233, 0.35); }
  70% { box-shadow: 0 0 0 8px rgba(14, 165, 233, 0); }
  100% { box-shadow: 0 0 0 0 rgba(14, 165, 233, 0); }
}

@keyframes pulseGlowGreen {
  0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.35); }
  70% { box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
  100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

@keyframes ringExpand {
  0% {
    width: 200px;
    height: 200px;
    opacity: 0.35;
  }
  100% {
    width: 440px;
    height: 440px;
    opacity: 0;
  }
}

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

.school-logo-img {
  height: 48px;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.35));
  transition: transform var(--transition-fast) ease;
}

.school-logo-img:hover {
  transform: scale(1.06);
}

.slide-school-logo:hover {
  transform: scale(1.05);
}

/* Responsive Styles */
@media (max-width: 992px) {
  .welcome-hero {
    flex-direction: column;
    gap: 2rem;
    padding: 2rem;
  }
  
  .weeks-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  .app-container {
    padding: 1rem;
  }
  
  .welcome-hero {
    padding: 1.5rem;
  }
  
  .welcome-title {
    font-size: 2.25rem;
  }
  
  .flow-steps {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }
  
  .flow-step-arrow {
    transform: rotate(90deg);
    align-self: flex-start;
    margin-left: 11px;
    padding: 0.15rem 0;
  }
  
  .flow-step {
    width: 100%;
  }
  
  .presentation-screen {
    padding: 2rem 1.5rem;
    min-height: 420px;
  }
  
  .vocab-word-large {
    font-size: 3rem;
  }
  
  .vocab-translation {
    font-size: 1.8rem;
  }
  
  .passage-sentence-en {
    font-size: 1.5rem;
  }
  
  .console-settings {
    justify-content: center;
  }
}

/* Auditory Masked Shadowing Text Styles (Rounds 3-4 of Passage) */
.passage-sentence-en.masked-text {
  color: var(--color-secondary);
  font-size: 1.8rem !important;
  font-weight: 600;
  padding: 2.25rem 3rem;
  background: rgba(6, 182, 212, 0.05);
  border: 2px dashed rgba(6, 182, 212, 0.25);
  border-radius: var(--radius-lg);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  animation: pulseGlow 2.5s infinite;
  box-shadow: 0 10px 30px rgba(6, 182, 212, 0.08);
}

.listening-mask {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.65rem;
  text-align: center;
}

.mask-th {
  font-family: var(--font-th);
  font-size: 0.95rem;
  color: var(--text-muted);
  font-weight: 400;
  margin-top: 0.25rem;
}

/* ==========================================================================
   Student Shadowing Speech Recognition & Feedback Panel
   ========================================================================== */

.speech-feedback-panel {
  width: 100%;
  max-width: 620px;
  background: rgba(14, 12, 33, 0.85);
  border: 1px solid rgba(99, 102, 241, 0.25);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.75rem;
  margin-top: 1.5rem;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.05);
  z-index: 10;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  animation: slideFadeIn var(--transition-fast) forwards;
}

.mic-status-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.mic-glowing-indicator {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-secondary);
}

.mic-glowing-indicator svg.mic-icon {
  color: var(--color-science);
  animation: pulseGlowMic 1.5s infinite;
}

@keyframes pulseGlowMic {
  0% { transform: scale(1); filter: drop-shadow(0 0 0 rgba(244, 63, 94, 0.4)); }
  70% { transform: scale(1.12); filter: drop-shadow(0 0 8px rgba(244, 63, 94, 0.8)); }
  100% { transform: scale(1); filter: drop-shadow(0 0 0 rgba(244, 63, 94, 0)); }
}

/* Voice wave simulation */
.voice-wave {
  display: flex;
  align-items: center;
  gap: 3px;
  height: 18px;
}

.voice-wave span {
  display: inline-block;
  width: 3px;
  height: 100%;
  background-color: var(--color-science);
  border-radius: 2px;
  animation: bounceWave 1.2s ease-in-out infinite;
  transform-origin: bottom;
}

.voice-wave span:nth-child(1) { animation-delay: 0.1s; height: 40%; }
.voice-wave span:nth-child(2) { animation-delay: 0.25s; height: 75%; }
.voice-wave span:nth-child(3) { animation-delay: 0.4s; height: 100%; }
.voice-wave span:nth-child(4) { animation-delay: 0.15s; height: 60%; }
.voice-wave span:nth-child(5) { animation-delay: 0.3s; height: 45%; }

@keyframes bounceWave {
  0%, 100% { transform: scaleY(0.2); }
  50% { transform: scaleY(1); }
}

/* Comparison Display (Correct/Wrong Words) */
.comparison-display {
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1.15rem;
  min-height: 50px;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-items: center;
  font-size: 1.05rem;
  font-weight: 500;
  line-height: 1.5;
}

.comparison-word {
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
  transition: all var(--transition-fast);
}

.comparison-word.correct {
  color: #34d399; /* Green */
  background: rgba(52, 211, 153, 0.12);
  border: 1px solid rgba(52, 211, 153, 0.25);
}

.comparison-word.incorrect {
  color: #fb7185; /* Red */
  background: rgba(251, 113, 133, 0.12);
  border: 1px solid rgba(251, 113, 133, 0.25);
  text-decoration: line-through;
  cursor: help;
}

.comparison-word.missing {
  color: #94a3b8; /* Slate gray */
  background: rgba(148, 163, 184, 0.08);
  border: 1px dashed rgba(148, 163, 184, 0.2);
}

/* Accuracy Gauge */
.score-display-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  margin-top: 0.25rem;
}

.accuracy-gauge-container {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-grow: 1;
}

.accuracy-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.gauge-track {
  height: 8px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 4px;
  overflow: hidden;
  flex-grow: 1;
}

.gauge-fill {
  height: 100%;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--color-science) 0%, var(--state-speak) 100%);
  transition: width 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.accuracy-percentage {
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--state-speak);
  min-width: 40px;
  text-align: right;
}

.score-rating-badge {
  padding: 0.25rem 0.75rem;
  border-radius: 12px;
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.score-rating-badge.practice {
  background: rgba(249, 115, 22, 0.15);
  border: 1px solid var(--color-social);
  color: var(--color-social);
}

/* --------------------------------------------------
 * 9. AI-Powered Pronunciation Analytics Dashboard (Cyber/Developer UI)
 * -------------------------------------------------- */

:root {
  --cyber-bg: #030208;
  --cyber-panel-bg: rgba(6, 4, 15, 0.85);
  --neon-cyan: #00f0ff;
  --neon-magenta: #ff007f;
  --neon-green: #39ff14;
  --neon-yellow: #fff01f;
  --cyber-border: rgba(0, 240, 255, 0.2);
  --cyber-border-magenta: rgba(255, 0, 127, 0.2);
  --panel-glow-cyber: 0 0 20px rgba(0, 240, 255, 0.08);
  --panel-glow-magenta: 0 0 20px rgba(255, 0, 127, 0.08);
  
  /* Modern Developer Typography */
  --font-cyber-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-cyber-title: 'Outfit', sans-serif;
  --font-cyber-mono: 'Share Tech Mono', monospace;
}

/* Base View Toggles */
.analytics-view {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  animation: fadeIn var(--transition-normal);
  background-color: var(--cyber-bg);
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(0, 240, 255, 0.1);
  box-shadow: inset 0 0 30px rgba(0, 0, 0, 0.9);
  position: relative;
  overflow: hidden;
  font-family: var(--font-cyber-sans);
}

/* Futuristic Scanline Overlay Effect */
.analytics-view::before {
  content: " ";
  display: block;
  position: absolute;
  top: 0; left: 0; bottom: 0; right: 0;
  background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 240, 255, 0.035) 50%), linear-gradient(90deg, rgba(255, 0, 0, 0.01), rgba(0, 255, 0, 0.005), rgba(0, 0, 255, 0.01));
  z-index: 10;
  background-size: 100% 4px, 3px 100%;
  pointer-events: none;
}

/* Top Horizontal Stats Strip */
.analytics-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
  z-index: 2;
}

.cyber-stat-box {
  background: var(--cyber-panel-bg);
  border: 1px solid var(--cyber-border);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1.25rem;
  display: flex;
  flex-direction: column;
  box-shadow: var(--panel-glow-cyber);
  position: relative;
}

.cyber-stat-box::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 15px;
  height: 2px;
  background: var(--neon-cyan);
}

.cyber-stat-box::after {
  content: "";
  position: absolute;
  bottom: 0;
  right: 0;
  width: 2px;
  height: 12px;
  background: var(--neon-cyan);
}

.cyber-stat-label {
  font-family: var(--font-cyber-sans);
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 1px;
}

.cyber-stat-value {
  font-family: var(--font-cyber-mono);
  font-size: 1.5rem;
  font-weight: 800;
  margin-top: 0.25rem;
}

/* Neon Glow Utilities */
.text-glow-cyan {
  color: var(--neon-cyan);
  text-shadow: 0 0 10px rgba(0, 240, 255, 0.6);
}

.text-glow-magenta {
  color: var(--neon-magenta);
  text-shadow: 0 0 10px rgba(255, 0, 127, 0.6);
}

.cyan-text { color: var(--neon-cyan); }
.magenta-text { color: var(--neon-magenta); }

/* Main Grid Layout */
.analytics-grid {
  display: grid;
  grid-template-columns: 1.1fr 1.1fr 1.3fr;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
  z-index: 2;
}

@media (max-width: 1100px) {
  .analytics-grid {
    grid-template-columns: 1fr;
  }
}

.analytics-col {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

/* Cyber Panels (Dashboard Cards) */
.cyber-panel {
  background: var(--cyber-panel-bg);
  border: 1px solid var(--cyber-border);
  border-radius: var(--radius-md);
  box-shadow: var(--panel-glow-cyber);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.cyber-panel:nth-child(even) {
  border-color: var(--cyber-border-magenta);
  box-shadow: var(--panel-glow-magenta);
}

.cyber-panel-header {
  padding: 0.75rem 1.25rem;
  background: rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid rgba(0, 240, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.cyber-panel:nth-child(even) .cyber-panel-header {
  border-bottom-color: rgba(255, 0, 127, 0.1);
}

.cyber-panel-title {
  font-family: var(--font-cyber-title);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--text-secondary);
}

.cyber-panel-status {
  font-family: var(--font-cyber-mono);
  font-size: 0.65rem;
  background: rgba(0, 240, 255, 0.1);
  color: var(--neon-cyan);
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  border: 1px solid rgba(0, 240, 255, 0.3);
}

.cyber-panel:nth-child(even) .cyber-panel-status {
  background: rgba(255, 0, 127, 0.1);
  color: var(--neon-magenta);
  border-color: rgba(255, 0, 127, 0.3);
}

.cyber-panel-body {
  padding: 1.25rem;
  position: relative;
}

/* Charts Containers */
.chart-container {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.chart-container canvas {
  width: 100% !important;
  height: auto !important;
  max-height: 200px;
}

/* Column 2 Metrics: Circular Progress Gauges */
.metrics-layout {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.metric-progress-row {
  display: flex;
  justify-content: space-around;
  align-items: center;
  padding: 0.5rem 0;
}

.metric-circle-gauge {
  width: 100px;
  height: 100px;
  position: relative;
}

.metric-circle-gauge svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.gauge-bg {
  fill: none;
  stroke: rgba(255, 255, 255, 0.05);
  stroke-width: 8;
}

.gauge-fill {
  fill: none;
  stroke-width: 8;
  stroke-linecap: round;
  transition: stroke-dashoffset 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.gauge-fill.fill-cyan {
  stroke: var(--neon-cyan);
  filter: drop-shadow(0 0 5px rgba(0, 240, 255, 0.6));
}

.gauge-fill.fill-magenta {
  stroke: var(--neon-magenta);
  filter: drop-shadow(0 0 5px rgba(255, 0, 127, 0.6));
}

.gauge-label {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 90%;
  pointer-events: none;
}

.gauge-val {
  font-family: monospace;
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-primary);
}

.gauge-sub {
  font-size: 0.5rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  text-align: center;
  margin-top: 1px;
}

/* Latency Telemetry Specs */
.latency-specs {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
}

.spec-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
}

.spec-row span:first-child {
  color: var(--text-secondary);
}

.spec-row span:last-child {
  font-family: monospace;
  font-weight: 700;
}

/* Column 2 Heatmap */
.heatmap-container {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  min-height: 120px;
  align-content: flex-start;
}

.heatmap-word-block {
  font-family: monospace;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.35rem 0.65rem;
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
  display: inline-flex;
  align-items: center;
  user-select: none;
}

.heatmap-speaker-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-right: 5px;
  color: inherit;
  opacity: 0.8;
  transition: all var(--transition-fast);
}

.heatmap-speaker-btn:hover {
  transform: scale(1.2);
  opacity: 1;
}

.heatmap-speaker-btn.playing .speaker-icon {
  animation: speakerPulse 0.4s ease;
}

@keyframes speakerPulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.35); }
  100% { transform: scale(1); }
}

/* Error heat intensities */
.heat-low {
  background: rgba(16, 185, 129, 0.12);
  border-color: rgba(16, 185, 129, 0.3);
  color: var(--state-speak);
}

.heat-medium {
  background: rgba(249, 115, 22, 0.18);
  border-color: rgba(249, 115, 22, 0.4);
  color: var(--color-social);
  box-shadow: 0 0 10px rgba(249, 115, 22, 0.1);
}

.heat-high {
  background: rgba(239, 68, 68, 0.22);
  border-color: rgba(239, 68, 68, 0.5);
  color: #ef4444;
  box-shadow: 0 0 12px rgba(239, 68, 68, 0.18);
  animation: pulseRedBorder 2s infinite;
}

.heatmap-word-block:hover {
  transform: translateY(-2px);
  filter: brightness(1.25);
  box-shadow: 0 4px 10px rgba(0,0,0,0.15);
}

.no-data-msg {
  width: 100%;
  text-align: center;
  padding: 2.5rem 1rem;
  color: var(--text-muted);
  font-size: 0.8rem;
  font-family: var(--font-th);
}

/* Column 3 Real-time Diagnostics Terminal */
.flex-grow-panel {
  flex-grow: 1;
}

.terminal-body {
  height: 220px;
  overflow-y: auto;
  background: #020105;
  border: 1px solid rgba(0, 240, 255, 0.15);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  font-family: monospace;
  font-size: 0.78rem;
  line-height: 1.45;
  color: rgba(255, 255, 255, 0.85);
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  scrollbar-width: thin;
  scrollbar-color: rgba(0, 240, 255, 0.2) transparent;
}

.terminal-body::-webkit-scrollbar {
  width: 4px;
}

.terminal-body::-webkit-scrollbar-thumb {
  background: rgba(0, 240, 255, 0.25);
  border-radius: 2px;
}

.term-line {
  word-break: break-all;
}

.term-time {
  color: var(--text-muted);
  margin-right: 0.5rem;
}

.term-tag {
  font-weight: 800;
  margin-right: 0.5rem;
  padding: 0.05rem 0.25rem;
  border-radius: 2px;
  font-size: 0.68rem;
}

.tag-info { background: rgba(0, 240, 255, 0.12); color: var(--neon-cyan); border: 1px solid rgba(0, 240, 255, 0.3); }
.tag-engine { background: rgba(255, 0, 127, 0.12); color: var(--neon-magenta); border: 1px solid rgba(255, 0, 127, 0.3); }
.tag-voice { background: rgba(57, 255, 20, 0.12); color: var(--neon-green); border: 1px solid rgba(57, 255, 20, 0.3); }
.tag-err { background: rgba(239, 68, 68, 0.12); color: #ef4444; border: 1px solid rgba(239, 68, 68, 0.3); }

/* Column 3 AI Coach */
.ai-coach-body {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.ai-coach-avatar {
  position: relative;
  width: 44px;
  height: 44px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--cyber-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: var(--panel-glow-cyber);
}

.avatar-img-icon {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  object-fit: cover;
  z-index: 2;
  border: 1px solid rgba(0, 240, 255, 0.4);
  box-shadow: 0 0 10px rgba(0, 240, 255, 0.3);
}

.avatar-glow {
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: var(--neon-cyan);
  opacity: 0.15;
  animation: pulseScale 2s infinite;
}

.ai-feedback-text {
  font-family: var(--font-th);
  font-size: 0.88rem;
  line-height: 1.55;
  color: var(--text-secondary);
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  flex-grow: 1;
  position: relative;
  box-shadow: inset 0 2px 4px rgba(0,0,0,0.4);
}

/* Tooltips / Action Toolbar */
.analytics-toolbar {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  border-top: 1px solid rgba(0, 240, 255, 0.1);
  padding-top: 1.25rem;
  margin-top: 1rem;
  z-index: 2;
}

.btn-cyber {
  background: rgba(0, 240, 255, 0.05) !important;
  border: 1px solid var(--cyber-border) !important;
  color: var(--neon-cyan) !important;
  font-family: monospace;
  font-size: 0.8rem;
  letter-spacing: 0.5px;
  box-shadow: 0 0 10px rgba(0, 240, 255, 0.05);
}

.btn-cyber:hover {
  background: rgba(0, 240, 255, 0.15) !important;
  border-color: var(--neon-cyan) !important;
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.2) !important;
  transform: translateY(-2px);
}

.btn-cyber-danger {
  background: rgba(239, 68, 68, 0.05) !important;
  border: 1px solid rgba(239, 68, 68, 0.3) !important;
  color: #ef4444 !important;
  font-family: monospace;
  font-size: 0.8rem;
  letter-spacing: 0.5px;
  box-shadow: 0 0 10px rgba(239, 68, 68, 0.05);
}

.btn-cyber-danger:hover {
  background: rgba(239, 68, 68, 0.15) !important;
  border-color: #ef4444 !important;
  box-shadow: 0 0 15px rgba(239, 68, 68, 0.2) !important;
  transform: translateY(-2px);
}

/* Animations */
@keyframes ringExpand {
  0% { transform: scale(1); opacity: 0.12; }
  50% { opacity: 0.35; }
  100% { transform: scale(1.6); opacity: 0; }
}

@keyframes pulseScale {
  0% { transform: scale(1); opacity: 0.15; }
  50% { transform: scale(1.25); opacity: 0.3; }
  100% { transform: scale(1); opacity: 0.15; }
}

@keyframes pulseRedBorder {
  0% { border-color: rgba(239, 68, 68, 0.4); box-shadow: 0 0 10px rgba(239, 68, 68, 0.1); }
  50% { border-color: rgba(239, 68, 68, 0.8); box-shadow: 0 0 15px rgba(239, 68, 68, 0.35); }
  100% { border-color: rgba(239, 68, 68, 0.4); box-shadow: 0 0 10px rgba(239, 68, 68, 0.1); }
}

.animated-blink {
  animation: blinkFast 1.5s step-end infinite;
}

@keyframes blinkFast {
  from, to { border-color: transparent; color: transparent; background: transparent; }
  50% { border-color: rgba(0, 240, 255, 0.3); color: var(--neon-cyan); background: rgba(0, 240, 255, 0.1); }
}

/* --- Dashboard Expansion Styles --- */

/* Score Overview Stats Overlay */
.chart-stats-overlay {
  position: absolute;
  top: 10px;
  right: 15px;
  z-index: 5;
  display: flex;
  gap: 0.85rem;
  pointer-events: none;
}

.chart-overlay-stat {
  background: rgba(3, 2, 8, 0.85);
  border: 1px solid rgba(0, 240, 255, 0.15);
  border-radius: 6px;
  padding: 0.35rem 0.65rem;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  box-shadow: 0 4px 10px rgba(0,0,0,0.3);
}

.cyber-panel:nth-child(even) .chart-overlay-stat {
  border-color: rgba(255, 0, 127, 0.15);
}

.stat-small-label {
  font-family: monospace;
  font-size: 0.58rem;
  color: var(--text-muted);
  letter-spacing: 0.5px;
}

.stat-small-value {
  font-family: monospace;
  font-size: 0.95rem;
  font-weight: 800;
  margin-top: 1px;
}

/* Practice Panel Layout (Chart + Session log) */
.practice-panel-layout {
  display: flex;
  gap: 1.25rem;
  padding: 1rem 1.25rem;
  align-items: stretch;
}

@media (max-width: 600px) {
  .practice-panel-layout {
    flex-direction: column;
  }
}

.practice-left {
  flex: 1.3;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.practice-right {
  flex: 0.7;
  display: flex;
  flex-direction: column;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.02);
  border-radius: var(--radius-sm);
  padding: 0.75rem;
  min-height: 150px;
}

.weekly-time-badge {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(255, 0, 127, 0.08);
  border: 1px solid rgba(255, 0, 127, 0.25);
  border-radius: 6px;
  padding: 0.4rem 0.75rem;
}

.badge-lbl {
  font-family: monospace;
  font-size: 0.7rem;
  color: var(--text-secondary);
}

.badge-val {
  font-family: monospace;
  font-size: 0.95rem;
  font-weight: 800;
}

.sub-panel-title {
  font-family: monospace;
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.5px;
  margin-bottom: 0.5rem;
  display: block;
}

.session-duration-list {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  overflow-y: auto;
  flex-grow: 1;
  max-height: 110px;
  scrollbar-width: none;
}

.session-duration-list::-webkit-scrollbar {
  display: none;
}

.session-item {
  font-family: monospace;
  font-size: 0.72rem;
  background: rgba(255, 255, 255, 0.02);
  border-left: 2px solid var(--neon-magenta);
  padding: 0.35rem 0.5rem;
  border-radius: 0 4px 4px 0;
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.session-header-row {
  display: flex;
  justify-content: space-between;
  color: var(--text-primary);
}

.session-meta-row {
  color: var(--text-muted);
  font-size: 0.62rem;
}

.no-session-msg, .no-phonemes-msg {
  text-align: center;
  margin: auto;
  font-family: monospace;
  font-size: 0.7rem;
  color: var(--text-muted);
}

/* Fluency & Phonemes metrics overlay */
.fluency-extended-metrics {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
}

.metric-small-strip {
  flex: 1;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.02);
  border-radius: 6px;
  padding: 0.45rem 0.75rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
}

.metric-small-strip span:first-child {
  color: var(--text-secondary);
}

.metric-small-strip span:last-child {
  font-size: 0.85rem;
}

.problem-phonemes-panel {
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.02);
  border-radius: var(--radius-sm);
  padding: 0.75rem;
}

.phonemes-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.phoneme-bar-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: monospace;
  font-size: 0.72rem;
}

.phoneme-lbl {
  width: 32px;
  color: var(--neon-cyan);
  font-weight: 700;
  text-align: left;
}

.phoneme-track {
  flex-grow: 1;
  height: 6px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 3px;
  position: relative;
  overflow: hidden;
}

.phoneme-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--neon-magenta), #ef4444);
  border-radius: 3px;
  box-shadow: 0 0 8px rgba(255, 0, 127, 0.4);
  transition: width 0.6s ease;
}

.phoneme-pct {
  width: 38px;
  color: var(--text-secondary);
  text-align: right;
  font-size: 0.68rem;
}

/* Real-time Status grid on Telemetry panel */
.telemetry-body-wrapper {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.realtime-status-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr 0.7fr;
  gap: 0.75rem;
  background: rgba(0,0,0,0.4);
  border: 1px solid rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
}

.telemetry-item {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.tel-lbl {
  font-family: monospace;
  font-size: 0.58rem;
  color: var(--text-muted);
  letter-spacing: 0.5px;
}

.tel-val {
  font-family: monospace;
  font-size: 0.8rem;
  font-weight: 700;
  margin-top: 2px;
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}

.text-glow-green {
  color: var(--neon-green);
  text-shadow: 0 0 8px rgba(57, 255, 20, 0.5);
}

/* Extended AI feedback layout */
.ai-coach-body-extended {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.ai-coach-main-row {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.ai-feedback-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.85rem;
}

.ai-feedback-sub-box {
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.02);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
/* ============================================================================
 * 10. Light Mode Color Theme Overrides (Pure White Theme)
 * ============================================================================ */
body.light-theme {
  background-color: #ffffff !important;
  color: #0f172a !important;
}

body.light-theme header {
  background: #ffffff !important;
  border-bottom: 1px solid #cbd5e1 !important;
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.04) !important;
}

body.light-theme .logo-text h1 {
  color: #0f172a !important;
}

body.light-theme .logo-text span {
  color: #475569 !important;
}

/* Home Selection Cards */
body.light-theme .week-card {
  background: #ffffff !important;
  border: 1px solid #e2e8f0 !important;
  box-shadow: 0 4px 6px -1px rgba(0,0,0,0.02), 0 2px 4px -1px rgba(0,0,0,0.01) !important;
}

body.light-theme .week-card:hover {
  border-color: #3b82f6 !important;
  transform: translateY(-4px);
  box-shadow: 0 10px 15px -3px rgba(59,130,246,0.1) !important;
}

body.light-theme .week-title {
  color: #0f172a !important;
}

body.light-theme .week-theme {
  color: #334155 !important;
}

body.light-theme .badge-count {
  background: #f1f5f9 !important;
  color: #475569 !important;
  border-color: #cbd5e1 !important;
}

/* Main Presentation Player View */
body.light-theme .player-view {
  background: #ffffff !important;
  border-color: #cbd5e1 !important;
  box-shadow: 0 10px 25px -5px rgba(0,0,0,0.05) !important;
}

body.light-theme .presentation-screen {
  background: #f8fafc !important;
  border-color: #e2e8f0 !important;
}

body.light-theme .presentation-screen.listen-active {
  border-color: #3b82f6 !important;
  box-shadow: inset 0 0 0 1px #3b82f6, 0 0 12px rgba(59, 130, 246, 0.15) !important;
}

body.light-theme .presentation-screen.speak-active {
  border-color: #10b981 !important;
  box-shadow: inset 0 0 0 1px #10b981, 0 0 12px rgba(16, 185, 129, 0.15) !important;
}

body.light-theme .vocab-word-large {
  color: #0f172a !important;
}

body.light-theme .vocab-pos,
body.light-theme .vocab-ipa {
  color: #475569 !important;
  background: #e2e8f0 !important;
}

body.light-theme .spelling-letter {
  background: #ffffff !important;
  border-color: #cbd5e1 !important;
  color: #334155 !important;
}

body.light-theme .spelling-letter.active {
  background: #eff6ff !important;
  border-color: #3b82f6 !important;
  color: #1d4ed8 !important;
}

body.light-theme .vocab-translation,
body.light-theme .vocab-sentence-th,
body.light-theme .passage-sentence-th {
  color: #475569 !important;
}

body.light-theme .vocab-sentence-en,
body.light-theme .passage-sentence-en {
  color: #0f172a !important;
}

body.light-theme .slide-passage-layout .passage-step-label {
  color: #64748b !important;
}

body.light-theme .slide-writing-layout h2.writing-title {
  color: #0f172a !important;
}

body.light-theme .writing-split-grid h3 {
  color: #0f172a !important;
  border-bottom-color: #e2e8f0 !important;
}

body.light-theme .vocab-word-item {
  background: #f8fafc !important;
  border-color: #e2e8f0 !important;
}

body.light-theme .vocab-word-item .word-title {
  color: #0f172a !important;
}

body.light-theme .passage-block {
  background: #f8fafc !important;
  border-color: #e2e8f0 !important;
}

body.light-theme .passage-block-title {
  color: #0f172a !important;
}

body.light-theme .passage-block-text {
  color: #334155 !important;
}

body.light-theme .writing-instruction-banner {
  background: #eff6ff !important;
  border-color: #bfdbfe !important;
  color: #1e3a8a !important;
}

/* Control toolbar */
body.light-theme .player-controls-container {
  background: #ffffff !important;
  border-top: 1px solid #e2e8f0 !important;
}

body.light-theme .btn-control {
  background: #f1f5f9 !important;
  border-color: #cbd5e1 !important;
  color: #475569 !important;
}

body.light-theme .btn-control:hover {
  background: #e2e8f0 !important;
  color: #0f172a !important;
}

body.light-theme .btn-primary {
  background: #3b82f6 !important;
  border-color: #2563eb !important;
  color: #ffffff !important;
}

body.light-theme .btn-primary:hover {
  background: #2563eb !important;
}

body.light-theme .speech-feedback-panel {
  background: #ffffff !important;
  border-color: #e2e8f0 !important;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05) !important;
}

body.light-theme .feedback-title {
  color: #0f172a !important;
}

body.light-theme .transcript-box {
  background: #f8fafc !important;
  border-color: #cbd5e1 !important;
  color: #0f172a !important;
}

body.light-theme .score-text-val {
  color: #0f172a !important;
}

/* Analytics Dashboard Overrides */
body.light-theme .analytics-view {
  background-color: #ffffff !important;
  border-color: #cbd5e1 !important;
  box-shadow: none !important;
}

body.light-theme .analytics-view::before {
  display: none !important; /* Turn off cyber scanlines */
}

body.light-theme .cyber-stat-box {
  background: #ffffff !important;
  border-color: #cbd5e1 !important;
  box-shadow: 0 4px 6px rgba(0,0,0,0.02) !important;
}

body.light-theme .cyber-stat-box::before,
body.light-theme .cyber-stat-box::after {
  background: #3b82f6 !important;
}

body.light-theme .cyber-stat-label {
  color: #64748b !important;
}

body.light-theme .cyber-stat-value {
  color: #0f172a !important;
  text-shadow: none !important;
}

body.light-theme .text-glow-cyan {
  color: #1d4ed8 !important;
  text-shadow: none !important;
}

body.light-theme .text-glow-magenta {
  color: #c026d3 !important;
  text-shadow: none !important;
}

body.light-theme .cyber-panel {
  background: #ffffff !important;
  border-color: #cbd5e1 !important;
  box-shadow: 0 4px 6px rgba(0,0,0,0.02) !important;
}

body.light-theme .cyber-panel:nth-child(even) {
  border-color: #cbd5e1 !important;
  box-shadow: 0 4px 6px rgba(0,0,0,0.02) !important;
}

body.light-theme .cyber-panel-header {
  background: #f1f5f9 !important;
  border-bottom-color: #e2e8f0 !important;
}

body.light-theme .cyber-panel:nth-child(even) .cyber-panel-header {
  border-bottom-color: #e2e8f0 !important;
}

body.light-theme .cyber-panel-title {
  color: #334155 !important;
}

body.light-theme .cyber-panel-status {
  background: #eff6ff !important;
  color: #2563eb !important;
  border-color: #bfdbfe !important;
}

body.light-theme .cyber-panel:nth-child(even) .cyber-panel-status {
  background: #fdf2f8 !important;
  color: #db2777 !important;
  border-color: #fbcfe8 !important;
}

body.light-theme .chart-overlay-stat {
  background: rgba(255, 255, 255, 0.95) !important;
  border-color: #cbd5e1 !important;
  box-shadow: 0 4px 8px rgba(0,0,0,0.05) !important;
}

body.light-theme .stat-small-value.cyan-text {
  color: #2563eb !important;
}

body.light-theme .stat-small-value.magenta-text {
  color: #db2777 !important;
}

body.light-theme .weekly-time-badge {
  background: #fdf2f8 !important;
  border-color: #fbcfe8 !important;
}

body.light-theme .weekly-time-badge .badge-val {
  color: #db2777 !important;
}

body.light-theme .session-item {
  background: #f8fafc !important;
  border-left-color: #db2777 !important;
}

body.light-theme .session-item .session-header-row {
  color: #0f172a !important;
}

body.light-theme .session-item .session-meta-row {
  color: #64748b !important;
}

body.light-theme .gauge-bg {
  stroke: #e2e8f0 !important;
}

body.light-theme .gauge-label .gauge-val {
  color: #0f172a !important;
}

body.light-theme .gauge-label .gauge-sub {
  color: #64748b !important;
}

body.light-theme .fluency-extended-metrics .metric-small-strip {
  background: #f8fafc !important;
  border-color: #cbd5e1 !important;
}

body.light-theme .metric-small-strip span.cyan-text {
  color: #2563eb !important;
}

body.light-theme .metric-small-strip span.magenta-text {
  color: #db2777 !important;
}

body.light-theme .problem-phonemes-panel {
  background: #ffffff !important;
  border-color: #cbd5e1 !important;
}

body.light-theme .phoneme-lbl {
  color: #2563eb !important;
}

body.light-theme .phoneme-track {
  background: #e2e8f0 !important;
}

body.light-theme .phoneme-fill {
  background: linear-gradient(90deg, #d946ef, #ec4899) !important;
  box-shadow: none !important;
}

body.light-theme .phoneme-pct {
  color: #475569 !important;
}

body.light-theme .heatmap-container {
  background: #f8fafc !important;
  border-color: #cbd5e1 !important;
}

body.light-theme .heatmap-word-block.heat-low {
  background: rgba(34, 197, 94, 0.08) !important;
  border-color: rgba(34, 197, 94, 0.25) !important;
  color: #166534 !important;
}

body.light-theme .heatmap-word-block.heat-medium {
  background: rgba(249, 115, 22, 0.08) !important;
  border-color: rgba(249, 115, 22, 0.25) !important;
  color: #9a3412 !important;
}

body.light-theme .heatmap-word-block.heat-high {
  background: rgba(239, 68, 68, 0.08) !important;
  border-color: rgba(239, 68, 68, 0.25) !important;
  color: #991b1b !important;
}

body.light-theme .realtime-status-grid {
  background: #f8fafc !important;
  border-color: #cbd5e1 !important;
}

body.light-theme .realtime-status-grid .tel-val.text-glow-cyan {
  color: #1d4ed8 !important;
  text-shadow: none !important;
}

body.light-theme .realtime-status-grid .tel-val.text-glow-magenta {
  color: #db2777 !important;
  text-shadow: none !important;
}

body.light-theme .realtime-status-grid .tel-val.text-glow-green {
  color: #15803d !important;
  text-shadow: none !important;
}

body.light-theme .terminal-body {
  background: #ffffff !important;
  border-color: #cbd5e1 !important;
}

body.light-theme .term-line {
  color: #334155 !important;
  border-bottom-color: rgba(0,0,0,0.02) !important;
}

body.light-theme .term-line span:last-child {
  color: #334155 !important;
}

body.light-theme .tag-info {
  background: #eff6ff !important;
  color: #2563eb !important;
  border-color: #bfdbfe !important;
}

body.light-theme .tag-engine {
  background: #fdf2f8 !important;
  color: #db2777 !important;
  border-color: #fbcfe8 !important;
}

body.light-theme .tag-voice {
  background: #f0fdf4 !important;
  color: #16a34a !important;
  border-color: #bbf7d0 !important;
}

body.light-theme .tag-err {
  background: #fef2f2 !important;
  color: #dc2626 !important;
  border-color: #fecaca !important;
}

body.light-theme .ai-feedback-text {
  background: #f8fafc !important;
  border-color: #e2e8f0 !important;
  color: #334155 !important;
  box-shadow: none !important;
}

body.light-theme .ai-feedback-sub-box {
  background: #ffffff !important;
  border-color: #cbd5e1 !important;
  box-shadow: none !important;
}

body.light-theme .ai-feedback-sub-box.magenta-text {
  color: #db2777 !important;
}

body.light-theme .ai-feedback-sub-box.cyan-text {
  color: #2563eb !important;
}

body.light-theme .sub-box-content {
  color: #334155 !important;
}

body.light-theme .avatar-glow {
  background: #3b82f6 !important;
}

body.light-theme .avatar-img-icon {
  border-color: #3b82f6 !important;
  box-shadow: 0 0 10px rgba(59, 130, 246, 0.2) !important;
}

body.light-theme .analytics-toolbar {
  border-top-color: #e2e8f0 !important;
}

body.light-theme .btn-cyber {
  background: #ffffff !important;
  border-color: #cbd5e1 !important;
  color: #475569 !important;
  box-shadow: none !important;
}

body.light-theme .btn-cyber:hover {
  background: #f1f5f9 !important;
  border-color: #3b82f6 !important;
  color: #1d4ed8 !important;
}

body.light-theme .btn-cyber-danger {
  background: #fef2f2 !important;
  border-color: #fecaca !important;
  color: #dc2626 !important;
  box-shadow: none !important;
}

body.light-theme .btn-cyber-danger:hover {
  background: #fee2e2 !important;
  border-color: #dc2626 !important;
  color: #b91c1c !important;
}
/* --------------------------------------------------
 * 11. Achievement Badges Grid & Cards Styling
 * -------------------------------------------------- */
.achievement-badges-panel {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  border-top: 1px dashed rgba(255, 255, 255, 0.08);
  padding-top: 1rem;
  margin-top: 0.25rem;
}

body.light-theme .achievement-badges-panel {
  border-top-color: #cbd5e1 !important;
  border-top-style: solid !important;
}

.badges-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.65rem;
}

.badge-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.015);
  border: 1px solid rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-md);
  padding: 0.65rem 0.35rem;
  text-align: center;
  transition: all var(--transition-fast);
}

.badge-card:hover {
  transform: translateY(-2px);
}

.badge-card.locked {
  filter: grayscale(1) opacity(0.3);
  cursor: not-allowed;
}

.badge-card.unlocked {
  filter: none;
  background: rgba(0, 240, 255, 0.03) !important;
  border-color: rgba(0, 240, 255, 0.2) !important;
  box-shadow: 0 0 10px rgba(0, 240, 255, 0.08) !important;
}

.badge-card.unlocked#badge-consistency-king {
  background: rgba(255, 0, 127, 0.03) !important;
  border-color: rgba(255, 0, 127, 0.2) !important;
  box-shadow: 0 0 10px rgba(255, 0, 127, 0.08) !important;
}

.badge-card.unlocked#badge-pronunciation-pro {
  background: rgba(16, 185, 129, 0.03) !important;
  border-color: rgba(16, 185, 129, 0.2) !important;
  box-shadow: 0 0 10px rgba(16, 185, 129, 0.08) !important;
}

/* Light Theme Badges Overrides */
body.light-theme .badge-card {
  background: #ffffff !important;
  border-color: #cbd5e1 !important;
}

body.light-theme .badge-card.locked {
  filter: grayscale(1) opacity(0.25) !important;
}

body.light-theme .badge-card.unlocked {
  background: #eff6ff !important;
  border-color: #bfdbfe !important;
  box-shadow: 0 4px 6px rgba(59, 130, 246, 0.03) !important;
}

body.light-theme .badge-card.unlocked#badge-consistency-king {
  background: #fdf2f8 !important;
  border-color: #fbcfe8 !important;
  box-shadow: 0 4px 6px rgba(219, 39, 119, 0.03) !important;
}

body.light-theme .badge-card.unlocked#badge-pronunciation-pro {
  background: #f0fdf4 !important;
  border-color: #bbf7d0 !important;
  box-shadow: 0 4px 6px rgba(22, 163, 74, 0.03) !important;
}

/* Badges Icon wrappers */
.badge-icon-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.03);
  margin-bottom: 0.4rem;
  color: var(--text-muted);
  transition: all var(--transition-fast);
}

.badge-card.unlocked .badge-icon-wrapper {
  background: rgba(0, 240, 255, 0.12) !important;
  color: var(--neon-cyan) !important;
  animation: badgePulseGlow 2.5s infinite alternate;
}

.badge-card.unlocked#badge-consistency-king .badge-icon-wrapper {
  background: rgba(255, 0, 127, 0.12) !important;
  color: var(--neon-magenta) !important;
  animation: badgePulseGlowMagenta 2.5s infinite alternate;
}

.badge-card.unlocked#badge-pronunciation-pro .badge-icon-wrapper {
  background: rgba(16, 185, 129, 0.12) !important;
  color: var(--state-speak) !important;
  animation: badgePulseGlowGreen 2.5s infinite alternate;
}

/* Light theme icon variables */
body.light-theme .badge-icon-wrapper {
  background: #f1f5f9 !important;
  color: #64748b !important;
}

body.light-theme .badge-card.unlocked .badge-icon-wrapper {
  background: #dbeafe !important;
  color: #2563eb !important;
  animation: none !important;
}

body.light-theme .badge-card.unlocked#badge-consistency-king .badge-icon-wrapper {
  background: #fce7f3 !important;
  color: #db2777 !important;
  animation: none !important;
}

body.light-theme .badge-card.unlocked#badge-pronunciation-pro .badge-icon-wrapper {
  background: #dcfce7 !important;
  color: #16a34a !important;
  animation: none !important;
}

.badge-icon {
  width: 15px;
  height: 15px;
}

.badge-title {
  font-family: var(--font-th);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--text-normal);
  margin-bottom: 0.1rem;
  white-space: nowrap;
}

body.light-theme .badge-title {
  color: #0f172a !important;
}

.badge-desc {
  font-family: var(--font-th);
  font-size: 0.55rem;
  color: var(--text-muted);
  line-height: 1.15;
  white-space: nowrap;
}

body.light-theme .badge-desc {
  color: #64748b !important;
}

/* Glow Keyframes */
@keyframes badgePulseGlow {
  0% { box-shadow: 0 0 3px rgba(0, 240, 255, 0.15); }
  100% { box-shadow: 0 0 10px rgba(0, 240, 255, 0.45); }
}

@keyframes badgePulseGlowMagenta {
  0% { box-shadow: 0 0 3px rgba(255, 0, 127, 0.15); }
  100% { box-shadow: 0 0 10px rgba(255, 0, 127, 0.45); }
}

@keyframes badgePulseGlowGreen {
  0% { box-shadow: 0 0 3px rgba(16, 185, 129, 0.15); }
  100% { box-shadow: 0 0 10px rgba(16, 185, 129, 0.45); }
}

/* ============================================================================
   10. Teacher Dashboard & Progress Tracking Styles
   ============================================================================ */

.teacher-view {
  display: none; /* Controlled by JS */
  flex-direction: column;
  gap: 1.75rem;
  animation: fadeIn var(--transition-normal);
}

.teacher-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding-bottom: 1rem;
}

body.light-theme .teacher-header-row {
  border-bottom-color: rgba(0, 0, 0, 0.08);
}

.classroom-select-wrapper {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.classroom-select-label {
  font-family: var(--font-th);
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.classroom-select-dropdown {
  background: var(--bg-secondary);
  border: 1px solid var(--panel-border);
  color: var(--text-primary);
  padding: 0.5rem 2rem 0.5rem 1rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-en);
  font-weight: 600;
  cursor: pointer;
  outline: none;
  transition: all var(--transition-fast);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%236366f1' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.5rem center;
  background-size: 1.2rem;
  min-width: 150px;
}

.classroom-select-dropdown:focus {
  border-color: var(--color-secondary);
  box-shadow: 0 0 10px rgba(6, 182, 212, 0.2);
}

body.light-theme .classroom-select-dropdown {
  background: #ffffff;
  border-color: #cbd5e1;
  color: #0f172a;
}

/* Teacher Dashboard Layout Grid */
.teacher-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 1.75rem;
}

@media (max-width: 1024px) {
  .teacher-grid {
    grid-template-columns: 1fr;
  }
}

.teacher-col {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

/* Week Locks Panel */
.week-locks-container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.75rem;
}

@media (max-width: 640px) {
  .week-locks-container {
    grid-template-columns: repeat(2, 1fr);
  }
}

.week-lock-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 12px;
  padding: 0.85rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: all var(--transition-fast);
}

body.light-theme .week-lock-card {
  background: #f8fafc;
  border-color: #e2e8f0;
}

.week-lock-card.unlocked-state {
  border-color: rgba(16, 185, 129, 0.2);
}

.week-lock-card.locked-state {
  border-color: rgba(244, 63, 94, 0.2);
}

.week-lock-title {
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 1px;
  color: var(--text-secondary);
}

.week-lock-status-badge {
  font-family: var(--font-th);
  font-size: 0.75rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.status-indicator-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.unlocked-state .status-indicator-dot {
  background-color: var(--state-speak);
  box-shadow: 0 0 8px rgba(16, 185, 129, 0.6);
}

.unlocked-state .week-lock-status-badge {
  color: var(--state-speak);
}

.locked-state .status-indicator-dot {
  background-color: var(--color-science);
  box-shadow: 0 0 8px rgba(244, 63, 94, 0.6);
}

.locked-state .week-lock-status-badge {
  color: var(--color-science);
}

.btn-lock-toggle {
  margin-top: auto;
  font-family: var(--font-th);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.35rem 0.5rem;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
  border: 1px solid transparent;
  transition: all var(--transition-fast);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
}

.btn-lock-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
}

.unlocked-state .btn-lock-toggle {
  border-color: rgba(244, 63, 94, 0.25);
}

.unlocked-state .btn-lock-toggle:hover {
  background: rgba(244, 63, 94, 0.1);
  color: #fda4af;
}

.locked-state .btn-lock-toggle {
  border-color: rgba(16, 185, 129, 0.25);
}

.locked-state .btn-lock-toggle:hover {
  background: rgba(16, 185, 129, 0.1);
  color: #a7f3d0;
}

body.light-theme .btn-lock-toggle {
  background: #e2e8f0;
  color: #0f172a;
}

body.light-theme .unlocked-state .btn-lock-toggle:hover {
  background: #ffe4e6;
  color: #be123c;
}

body.light-theme .locked-state .btn-lock-toggle:hover {
  background: #d1fae5;
  color: #047857;
}

/* Student Progress Table */
.student-progress-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.student-table-filters {
  display: flex;
  gap: 0.5rem;
}

.btn-filter {
  font-family: var(--font-th);
  font-size: 0.75rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text-secondary);
  padding: 0.25rem 0.65rem;
  border-radius: 6px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-filter:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
}

.btn-filter.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #ffffff;
  box-shadow: 0 0 10px var(--color-primary-glow);
}

body.light-theme .btn-filter {
  background: #f1f5f9;
  border-color: #cbd5e1;
  color: #475569;
}

body.light-theme .btn-filter.active {
  background: #2563eb;
  border-color: #2563eb;
  color: #ffffff;
  box-shadow: none;
}

.table-wrapper {
  width: 100%;
  overflow-x: auto;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

body.light-theme .table-wrapper {
  border-color: #cbd5e1;
}

.student-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.85rem;
}

.student-table th, .student-table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

body.light-theme .student-table th, body.light-theme .student-table td {
  border-bottom-color: #f1f5f9;
}

.student-table th {
  background: rgba(14, 12, 33, 0.9);
  color: var(--text-primary);
  font-weight: 700;
  letter-spacing: 0.5px;
}

body.light-theme .student-table th {
  background: #f8fafc;
  color: #0f172a;
}

.student-table tr:hover td {
  background: rgba(99, 102, 241, 0.03);
}

.student-table td.student-name-cell {
  font-family: var(--font-th);
  font-weight: 600;
  color: var(--text-primary);
}

body.light-theme .student-table td.student-name-cell {
  color: #0f172a;
}

.student-table td.student-name-cell .badge-you {
  font-family: var(--font-th);
  font-size: 0.65rem;
  background: rgba(6, 182, 212, 0.15);
  border: 1px solid rgba(6, 182, 212, 0.3);
  color: var(--color-secondary);
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  margin-left: 0.35rem;
  font-weight: 700;
  display: inline-block;
}

/* Week progress pill badges */
.progress-pill {
  font-family: var(--font-en);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.2rem 0.45rem;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  border: 1px solid transparent;
}

.progress-pill.completed {
  background: rgba(16, 185, 129, 0.1);
  border-color: rgba(16, 185, 129, 0.3);
  color: var(--state-speak);
}

.progress-pill.partial {
  background: rgba(249, 115, 22, 0.1);
  border-color: rgba(249, 115, 22, 0.3);
  color: var(--color-social);
}

.progress-pill.none {
  background: rgba(244, 63, 94, 0.08);
  border-color: rgba(244, 63, 94, 0.2);
  color: var(--color-science);
}

body.light-theme .progress-pill.completed {
  background: #d1fae5;
  color: #047857;
}

body.light-theme .progress-pill.partial {
  background: #ffedd5;
  color: #c2410c;
}

body.light-theme .progress-pill.none {
  background: #ffe4e6;
  color: #be123c;
}

/* Locked week styling in weeks grid */
.week-card.locked-week {
  position: relative;
  cursor: not-allowed;
  filter: opacity(0.6) saturate(0.5);
  pointer-events: none; /* We override in JS click event to show alert, but keep styling disabled */
}

/* Re-enable pointer events for the lock card so we can capture click to alert */
.week-card.locked-week {
  pointer-events: auto;
}

.week-card.locked-week:hover {
  transform: none !important;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.35) !important;
  border-color: rgba(99, 102, 241, 0.16) !important;
}

.week-card.locked-week::before, .week-card.locked-week::after {
  display: none !important;
}

/* Lock badge overlay */
.week-lock-overlay {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: rgba(244, 63, 94, 0.15);
  border: 1px solid rgba(244, 63, 94, 0.4);
  padding: 0.25rem 0.65rem;
  border-radius: 8px;
  color: var(--color-science);
  font-size: 0.7rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 0.3rem;
  letter-spacing: 0.5px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.2);
  z-index: 10;
}

body.light-theme .week-lock-overlay {
  background: #ffe4e6;
  border-color: #f43f5e;
  color: #be123c;
}

.btn-cyber-warning {
  background: rgba(249, 115, 22, 0.05);
  border: 1.5px solid rgba(249, 115, 22, 0.3);
  color: var(--color-social);
}

.btn-cyber-warning:hover {
  background: rgba(249, 115, 22, 0.12);
  border-color: rgba(249, 115, 22, 0.5);
  box-shadow: 0 0 12px rgba(249, 115, 22, 0.25);
}

body.light-theme .btn-cyber-warning {
  background: #fff7ed;
  border-color: #f97316;
  color: #ea580c;
}

body.light-theme .btn-cyber-warning:hover {
  background: #ffedd5;
}

/* ============================================================================
   12. Authentication Screen Styles
   ============================================================================ */

.auth-view {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-grow: 1;
  padding: 2rem 1rem;
  animation: fadeIn var(--transition-normal);
}

.auth-card {
  background: linear-gradient(135deg, rgba(14, 12, 38, 0.8) 0%, rgba(7, 6, 18, 0.95) 100%);
  border: 1px solid rgba(99, 102, 241, 0.22);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  width: 100%;
  max-width: 440px;
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-lg), 0 0 40px rgba(99, 102, 241, 0.15);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

body.light-theme .auth-card {
  background: #ffffff;
  border-color: #cbd5e1;
  box-shadow: var(--shadow-md), 0 4px 20px rgba(0, 0, 0, 0.05);
}

.auth-header {
  text-align: center;
}

.auth-logo-icon {
  width: 54px;
  height: 54px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  border-radius: var(--radius-md);
  margin: 0 auto 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 800;
  font-size: 1.5rem;
  box-shadow: 0 0 20px var(--color-primary-glow);
}

.auth-header h2 {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: linear-gradient(to right, #ffffff, #c7d2fe);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

body.light-theme .auth-header h2 {
  background: none;
  -webkit-text-fill-color: initial;
  color: #0f172a;
}

.auth-header p {
  font-family: var(--font-th);
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

/* Tab selector */
.auth-tabs {
  display: flex;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  gap: 0.5rem;
}

body.light-theme .auth-tabs {
  border-bottom-color: #e2e8f0;
}

.auth-tab-btn {
  flex: 1;
  background: none;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-th);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 0.75rem 0.5rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
}

.auth-tab-btn:hover {
  color: var(--text-primary);
}

body.light-theme .auth-tab-btn:hover {
  color: #0f172a;
}

.auth-tab-btn.active {
  color: var(--color-secondary);
}

.auth-tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(to right, var(--color-primary), var(--color-secondary));
  box-shadow: 0 0 8px var(--color-secondary-glow);
}

body.light-theme .auth-tab-btn.active {
  color: #2563eb;
}

body.light-theme .auth-tab-btn.active::after {
  background: #2563eb;
  box-shadow: none;
}

/* Forms */
.auth-form-container {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

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

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-label {
  font-family: var(--font-th);
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 600;
}

.form-input {
  background: var(--bg-secondary);
  border: 1px solid var(--panel-border);
  color: var(--text-primary);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  outline: none;
  transition: all var(--transition-fast);
}

.form-input:focus {
  border-color: var(--color-secondary);
  box-shadow: 0 0 10px rgba(6, 182, 212, 0.2);
}

body.light-theme .form-input {
  background: #ffffff;
  border-color: #cbd5e1;
  color: #0f172a;
}

body.light-theme .form-input:focus {
  border-color: #2563eb;
  box-shadow: 0 0 8px rgba(37, 99, 235, 0.15);
}

.btn-auth {
  font-family: var(--font-th);
  font-size: 0.95rem;
  font-weight: 700;
  padding: 0.75rem;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: white;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.btn-auth:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.45);
}

.btn-auth:active {
  transform: translateY(0);
}

.auth-error-msg {
  font-family: var(--font-th);
  font-size: 0.75rem;
  color: var(--color-science);
  display: none;
  text-align: center;
}

body.light-theme .auth-error-msg {
  color: #b91c1c;
}

.user-badge-header {
  font-family: var(--font-th);
  font-size: 0.8rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 0.35rem 0.75rem;
  border-radius: 8px;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

body.light-theme .user-badge-header {
  background: #f1f5f9;
  border-color: #e2e8f0;
  color: #334155;
}

.user-avatar-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-secondary);
  box-shadow: 0 0 6px var(--color-secondary-glow);
}

.teacher-role .user-avatar-dot {
  background-color: var(--color-math);
  box-shadow: 0 0 6px rgba(168, 85, 247, 0.6);
}

/* --- Cloud Auth Switcher & Avatar Styles --- */
.auth-mode-switch {
  display: flex;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-sm);
  padding: 0.25rem;
  gap: 0.25rem;
  margin-bottom: 0.5rem;
}

body.light-theme .auth-mode-switch {
  background: #f1f5f9;
  border-color: #cbd5e1;
}

.mode-switch-btn {
  flex: 1;
  background: none;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-th);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.5rem;
  cursor: pointer;
  border-radius: calc(var(--radius-sm) - 2px);
  transition: all var(--transition-fast);
}

.mode-switch-btn:hover {
  color: var(--text-primary);
}

body.light-theme .mode-switch-btn:hover {
  color: #0f172a;
}

.mode-switch-btn.active {
  background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: white !important;
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.25);
}

body.light-theme .mode-switch-btn.active {
  background: #2563eb;
  color: white !important;
  box-shadow: none;
}

.auth-link {
  font-family: var(--font-th);
  font-size: 0.8rem;
  color: var(--color-secondary);
  text-decoration: none;
  text-align: center;
  margin-top: 0.5rem;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.auth-link:hover {
  color: var(--text-primary);
  text-decoration: underline;
}

body.light-theme .auth-link {
  color: #2563eb;
}

body.light-theme .auth-link:hover {
  color: #1d4ed8;
}

.user-avatar-img {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
  border: 1.5px solid var(--color-secondary);
}