@import url('https://fonts.googleapis.com/css2?family=Be+Vietnam+Pro:wght@300;400;500;600;700&family=Outfit:wght@300;400;500;600;700&display=swap');

:root {
  --bg-dark: #09090b;
  --panel-bg: rgba(20, 20, 25, 0.7);
  --border-light: rgba(255, 255, 255, 0.08);
  --accent-purple: #8b5cf6;
  --accent-emerald: #10b981;
  --accent-indigo: #6366f1;
  --text-primary: #f4f4f5;
  --text-secondary: #a1a1aa;
  --shadow-glow: 0 0 30px rgba(99, 102, 241, 0.15);
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  background-color: var(--bg-dark);
  color: var(--text-primary);
  font-family: 'Be Vietnam Pro', 'Outfit', sans-serif;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  position: relative;
}

/* Background Mesh Gradient */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at 15% 15%, rgba(139, 92, 246, 0.1) 0%, transparent 40%),
              radial-gradient(circle at 85% 85%, rgba(16, 185, 129, 0.08) 0%, transparent 40%),
              radial-gradient(circle at 50% 50%, rgba(99, 102, 241, 0.05) 0%, transparent 50%);
  z-index: -1;
  pointer-events: none;
}

/* Main Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  flex: 1;
}

/* Header Section */
header {
  text-align: center;
  margin-bottom: 3rem;
}

.logo-text {
  font-family: 'Outfit', sans-serif;
  font-size: 2.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, #a78bfa 0%, #34d399 50%, #60a5fa 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
  letter-spacing: -0.05em;
  margin-bottom: 0.5rem;
}

.tagline {
  color: var(--text-secondary);
  font-size: 1.1rem;
  font-weight: 400;
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.6;
}

/* Tab Navigation */
.tabs-nav {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  background: rgba(30, 30, 35, 0.5);
  border: 1px solid var(--border-light);
  border-radius: 9999px;
  padding: 0.35rem;
  margin-bottom: 2.5rem;
  backdrop-filter: blur(10px);
}

.tab-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.75rem 1.5rem;
  border-radius: 9999px;
  cursor: pointer;
  transition: var(--transition-smooth);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.tab-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.03);
}

.tab-btn.active {
  color: #fff;
  background: linear-gradient(135deg, var(--accent-purple) 0%, var(--accent-indigo) 100%);
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

/* Tab Content Panes */
.tab-pane {
  display: none;
  animation: fadeIn 0.4s ease-out;
}

.tab-pane.active {
  display: block;
}

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

/* Glassmorphism Cards */
.glass-panel {
  background: var(--panel-bg);
  border: 1px solid var(--border-light);
  border-radius: 20px;
  padding: 2.5rem;
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-glow);
}

/* Grid Layouts */
.grid-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

@media (max-width: 768px) {
  .grid-2col {
    grid-template-columns: 1fr;
  }
  .tabs-nav {
    flex-wrap: wrap;
    border-radius: 15px;
    padding: 0.5rem;
  }
  .tab-btn {
    width: 100%;
    justify-content: center;
  }
}

/* Collapsible panels */
.panel-toggle {
  display: none;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.9rem;
  padding: 0.95rem 1rem;
  border: 1px solid var(--border-light);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 700;
  text-align: left;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.panel-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.16);
}

.toggle-hint {
  color: var(--accent-emerald);
  font-size: 0.82rem;
  white-space: nowrap;
}

/* Collapse state is only enforced on tablet/phone so desktop stays fully open. */
@media (max-width: 900px) {
  .panel-toggle {
    display: flex;
  }

  .collapsible-panel.is-collapsed {
    display: none !important;
  }

  .glass-panel {
    padding: 1.25rem;
    border-radius: 18px;
  }
}

/* Handbook Reader Section */
.handbook-container {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 2rem;
  align-items: start;
}

.handbook-sidebar {
  background: rgba(20, 20, 25, 0.5);
  border: 1px solid var(--border-light);
  border-radius: 20px;
  padding: 1.5rem;
  backdrop-filter: blur(10px);

}

.handbook-sidebar h3 {
  font-size: 0.8rem;
  text-transform: uppercase;
  color: var(--accent-emerald);
  letter-spacing: 0.1em;
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
  padding-bottom: 0.25rem;
  border-bottom: 1px solid rgba(16, 185, 129, 0.2);
}

.handbook-sidebar h3:first-of-type {
  margin-top: 0;
}

.sidebar-menu {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.sidebar-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.9rem;
  text-align: left;
  padding: 0.6rem 0.8rem;
  border-radius: 8px;
  cursor: pointer;
  width: 100%;
  transition: var(--transition-smooth);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-btn:hover {
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-primary);
}

.sidebar-btn.active {
  background: rgba(139, 92, 246, 0.1);
  color: #fff;
  border-left: 3px solid var(--accent-purple);
  padding-left: 0.6rem;
}

.handbook-reader {
  scroll-behavior: smooth;
  position: relative;
  min-width: 0;
}

.reader-content {
  width: min(100%, 760px);
  max-width: 100%;
  margin: 0 auto;
}

.reader-loading {
  text-align: center;
  font-size: 1.1rem;
  color: var(--text-secondary);
  padding: 5rem 0;
}

/* Markdown Stylings */
.markdown-body {
  font-size: 1.02rem;
  line-height: 1.7;
  color: #e4e4e7;
  overflow-wrap: break-word;
}

.markdown-body h1, .markdown-body h2, .markdown-body h3, .markdown-body h4 {
  color: #fff;
  margin-top: 2rem;
  margin-bottom: 1rem;
  font-weight: 700;
  line-height: 1.35;
}

.markdown-body h1 {
  font-size: 2.2rem;
  font-family: 'Outfit', sans-serif;
  margin-top: 0;
  border-bottom: 1px solid var(--border-light);
  padding-bottom: 0.75rem;
  background: linear-gradient(135deg, #fff 0%, var(--text-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.markdown-body h2 {
  font-size: 1.55rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding-bottom: 0.5rem;
}

.markdown-body h3 {
  font-size: 1.25rem;
}

.markdown-body p {
  margin-bottom: 1.25rem;
}

.markdown-body strong {
  color: #fff;
  font-weight: 600;
}

.markdown-body a {
  color: var(--accent-purple);
  text-decoration: none;
  transition: var(--transition-smooth);
}

.markdown-body a:hover {
  color: var(--accent-indigo);
  text-decoration: underline;
}

.markdown-body ul, .markdown-body ol {
  margin-bottom: 1.25rem;
  padding-left: 1.75rem;
}

.markdown-body li {
  margin-bottom: 0.5rem;
}

.markdown-body blockquote {
  border-left: 4px solid var(--accent-purple);
  background: rgba(139, 92, 246, 0.05);
  padding: 1rem 1.5rem;
  border-radius: 0 12px 12px 0;
  margin-bottom: 1.25rem;
  font-style: italic;
  color: #d8b4fe;
}

.markdown-body code {
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.9rem;
  background: rgba(255, 255, 255, 0.08);
  color: #f472b6;
  padding: 0.2rem 0.45rem;
  border-radius: 4px;
}

.markdown-body pre {
  background: #18181b;
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: 1.25rem;
  overflow-x: auto;
  margin-bottom: 1.25rem;
}

.markdown-body pre code {
  background: transparent;
  color: #c4b5fd;
  padding: 0;
  font-size: 0.88rem;
  white-space: pre;
}

.markdown-body table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1.5rem;
}

.markdown-body th, .markdown-body td {
  border: 1px solid var(--border-light);
  padding: 0.75rem 1rem;
  text-align: left;
}

.markdown-body th {
  background: rgba(255, 255, 255, 0.03);
  color: #fff;
  font-weight: 600;
}

.markdown-body tr:nth-child(even) {
  background: rgba(255, 255, 255, 0.01);
}

.markdown-body img {
  width: auto;
  max-width: 100%;
  height: auto;
  max-height: none;
  object-fit: contain;
  box-sizing: border-box;
  border-radius: 14px;
  border: 1px solid var(--border-light);
  margin: 1.5rem auto;
  display: block;
}

.markdown-body img[src$=".png"],
.markdown-body img[src*=".png?"] {
  width: 100%;
  background: #fff;
  padding: clamp(10px, 2vw, 22px);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.28);
}

@media (max-width: 900px) {
  .handbook-container {
    grid-template-columns: 1fr;
  }
  .handbook-sidebar {
    padding: 1rem;
  }
  .handbook-reader {
    min-height: auto;
  }
  .reader-content {
    width: 100%;
  }
}

/* Quiz Section */
.quiz-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border-light);
  padding-bottom: 1rem;
}

.progress-bar-container {
  flex: 1;
  height: 6px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 9999px;
  margin-left: 2rem;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent-purple), var(--accent-emerald));
  transition: width 0.4s ease;
}

.question-text {
  font-size: 1.4rem;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 1.5rem;
}

.options-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.option-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
  cursor: pointer;
  transition: var(--transition-smooth);
  text-align: left;
  color: var(--text-primary);
  font-size: 1.05rem;
  font-family: inherit;
  width: 100%;
  position: relative;
  overflow: hidden;
}

.option-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: transparent;
  transition: var(--transition-smooth);
}

.option-card:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.15);
  transform: translateX(5px);
}

.option-card:focus {
  outline: none;
}

.option-card.selected {
  background: rgba(99, 102, 241, 0.08);
  border-color: var(--accent-indigo);
}

.option-card.selected::before {
  background: var(--accent-indigo);
}

/* Quiz Results screen */
.results-container {
  text-align: center;
  animation: scaleUp 0.4s ease-out;
}

@keyframes scaleUp {
  from { transform: scale(0.95); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.score-circle {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.1) 0%, rgba(99, 102, 241, 0.2) 100%);
  border: 4px solid var(--accent-indigo);
  box-shadow: 0 0 30px rgba(99, 102, 241, 0.3);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  margin: 0 auto 2rem;
}

.score-num {
  font-size: 3.5rem;
  font-weight: 700;
  font-family: 'Outfit', sans-serif;
  color: #fff;
  line-height: 1;
}

.score-max {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

.recommendations {
  text-align: left;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-light);
  border-radius: 16px;
  padding: 1.5rem;
  margin-top: 2rem;

}

.rec-item {
  margin-bottom: 1.25rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-light);
}

.rec-item:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.rec-title {
  color: var(--accent-emerald);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.rec-text {
  color: var(--text-secondary);
  line-height: 1.5;
  font-size: 0.95rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-purple), var(--accent-indigo));
  border: none;
  color: white;
  padding: 0.9rem 2rem;
  border-radius: 9999px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.25);
  transition: var(--transition-smooth);
  font-family: inherit;
  margin-top: 1.5rem;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
}

/* Flashcards Section */
.flashcards-container {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.flashcard-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  max-width: 480px;
  margin-top: 1.5rem;
}

.card-nav-btn {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-light);
  color: var(--text-primary);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: var(--transition-smooth);
}

.card-nav-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
  transform: scale(1.05);
}

.filter-bar {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.filter-btn {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-light);
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.85rem;
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.filter-btn:hover, .filter-btn.active {
  color: #fff;
  border-color: var(--accent-purple);
  background: rgba(139, 92, 246, 0.1);
}

/* 3D Flashcard flip */
.card-perspective {
  perspective: 1000px;
  width: 100%;
  max-width: 480px;
  height: 320px;
  cursor: pointer;
}

.flashcard {
  width: 100%;
  height: 100%;
  position: relative;
  transform-style: preserve-3d;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.card-perspective.flipped .flashcard {
  transform: rotateY(180deg);
}

.card-face {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  border-radius: 20px;
  border: 1px solid var(--border-light);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
}

.card-front {
  background: radial-gradient(circle at 10% 10%, rgba(99, 102, 241, 0.15) 0%, rgba(20, 20, 25, 0.95) 80%);
}

.card-back {
  background: radial-gradient(circle at 90% 90%, rgba(16, 185, 129, 0.15) 0%, rgba(20, 20, 25, 0.95) 80%);
  transform: rotateY(180deg);
}

.card-category {
  position: absolute;
  top: 1.25rem;
  left: 1.25rem;
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--accent-purple);
  letter-spacing: 0.1em;
  font-weight: 600;
  background: rgba(139, 92, 246, 0.1);
  padding: 0.3rem 0.75rem;
  border-radius: 9999px;
  border: 1px solid rgba(139, 92, 246, 0.2);
}

.card-word {
  font-family: 'Outfit', sans-serif;
  font-size: 2.75rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.5rem;
  text-align: center;
}

.card-ipa {
  font-size: 1.1rem;
  color: var(--text-secondary);
  font-weight: 300;
  margin-bottom: 1.5rem;
}

.speak-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-light);
  color: var(--text-primary);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.speak-btn:hover {
  background: var(--accent-purple);
  color: white;
  box-shadow: 0 0 15px rgba(139, 92, 246, 0.5);
  transform: scale(1.08);
}

.card-hint {
  position: absolute;
  bottom: 1.25rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.card-meaning {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--accent-emerald);
  margin-bottom: 1.25rem;
  text-align: center;
}

.card-example-container {
  width: 100%;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-light);
  padding: 1rem 1.25rem;
  border-radius: 12px;
}

.card-example-en {
  font-size: 0.95rem;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  line-height: 1.5;
  font-style: italic;
}

.card-example-vi {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

/* AI Prompts Section */
.prompt-sidebar {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.prompt-menu-item {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-light);
  padding: 1.25rem;
  border-radius: 12px;
  cursor: pointer;
  transition: var(--transition-smooth);
  text-align: left;
}

.prompt-menu-item:hover, .prompt-menu-item.active {
  background: rgba(99, 102, 241, 0.06);
  border-color: var(--accent-purple);
}

.prompt-menu-item h4 {
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 0.25rem;
}

.prompt-menu-item p {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.prompt-viewer {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.prompt-description {
  font-size: 1rem;
  line-height: 1.5;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.prompt-content-box {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: 1.5rem;
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.9rem;
  color: #c4b5fd;
  white-space: pre-wrap;
  position: relative;
}

.copy-btn {
  background: var(--panel-bg);
  border: 1px solid var(--border-light);
  color: var(--text-primary);
  padding: 0.5rem 1rem;
  font-family: inherit;
  font-size: 0.85rem;
  border-radius: 8px;
  cursor: pointer;
  align-self: flex-end;
  margin-top: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition-smooth);
}

.copy-btn:hover {
  background: var(--accent-purple);
  color: #fff;
}

/* Shadowing timer section */
.shadowing-widget {
  max-width: 480px;
  margin: 0 auto;
  text-align: center;
}

.timer-display {
  font-family: 'Outfit', sans-serif;
  font-size: 4.5rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
  text-shadow: 0 0 20px rgba(99, 102, 241, 0.3);
}

.timer-controls {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.control-btn {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-light);
  color: var(--text-primary);
  padding: 0.8rem 2rem;
  border-radius: 9999px;
  font-family: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-smooth);
  min-width: 120px;
}

.control-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
}

.control-btn.start {
  background: linear-gradient(135deg, var(--accent-emerald), #059669);
  border: none;
  box-shadow: 0 4px 15px rgba(16, 185, 129, 0.25);
}

.control-btn.start:hover {
  box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
  transform: translateY(-2px);
}

.audio-waves {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 6px;
  height: 60px;
  margin-bottom: 2.5rem;
}

.wave-bar {
  width: 4px;
  height: 8px;
  background: linear-gradient(180deg, var(--accent-purple), var(--accent-emerald));
  border-radius: 9999px;
  transition: height 0.1s ease;
}

.audio-waves.playing .wave-bar {
  animation: wavePulse 1.2s ease-in-out infinite alternate;
}

.audio-waves.playing .wave-bar:nth-child(1) { animation-delay: 0.1s; }
.audio-waves.playing .wave-bar:nth-child(2) { animation-delay: 0.3s; }
.audio-waves.playing .wave-bar:nth-child(3) { animation-delay: 0.5s; }
.audio-waves.playing .wave-bar:nth-child(4) { animation-delay: 0.2s; }
.audio-waves.playing .wave-bar:nth-child(5) { animation-delay: 0.4s; }
.audio-waves.playing .wave-bar:nth-child(6) { animation-delay: 0.6s; }
.audio-waves.playing .wave-bar:nth-child(7) { animation-delay: 0.15s; }
.audio-waves.playing .wave-bar:nth-child(8) { animation-delay: 0.35s; }

@keyframes wavePulse {
  0% { height: 8px; }
  100% { height: 50px; }
}

.motivation-quote {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text-secondary);
  font-style: italic;
  max-width: 350px;
  margin: 0 auto;
  border-left: 3px solid var(--accent-indigo);
  padding-left: 1rem;
  text-align: left;
}

/* Footer Section */
footer {
  text-align: center;
  padding: 3rem 0;
  color: var(--text-secondary);
  font-size: 0.85rem;
  border-top: 1px solid var(--border-light);
  margin-top: 3rem;
  background: rgba(9, 9, 11, 0.8);
}

footer a {
  color: var(--accent-purple);
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

/* Notification Toast */
.toast {
  position: fixed;
  bottom: 2rem;
  right: -300px;
  background: #18181b;
  border: 1px solid var(--accent-emerald);
  color: #fff;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-size: 0.9rem;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
  transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  z-index: 1000;
}

.toast.show {
  right: 2rem;
}