/* ============================================================================
   VOCABRA - Tron Legacy Inspired Learning App Styles
   ============================================================================ */

/* ============================================================================
   FONTS
   ============================================================================ */
@import url("https://fonts.googleapis.com/css2?family=Exo+2:wght@400;500;600;700;800;900&family=Jura:wght@300;400;500;600;700&display=swap");

/* ============================================================================
   1. ROOT VARIABLES & THEME (БЭМ: :root, body)
   Используется на: всех страницах
   ============================================================================ */

:root {
  /* Colors - Dark Theme (Default) */
  --color-background: #0a0e1a;
  --color-surface: rgba(15, 23, 42, 0.8);
  --color-border: rgba(0, 217, 255, 0.3);
  --color-text: #e2e8f0;
  --color-text-muted: #94a3b8;
  --color-text-dim: #64748b; /* Added for softer text variations */
  --color-primary: #00d9ff;
  --color-primary-glow: rgba(0, 217, 255, 0.4);
  --color-accent: #ff6b00;
  --color-accent-glow: rgba(255, 107, 0, 0.4);
  --color-success: #00ff88;
  --color-success-glow: rgba(0, 255, 136, 0.4);
  --color-error: #ff0055;
  --color-error-glow: rgba(255, 0, 85, 0.4);

  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;

  /* Border Radius */
  --radius-small: 3px;
  --radius-medium: 6px;
  --radius-large: 8px;

  /* Transitions */
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);

  /* Header specific */
  --header-background: rgba(10, 14, 26, 0.85);
  --header-shadow: rgba(0, 217, 255, 0.15);

  /* Typography */
  --font-heading: "Exo 2", sans-serif;
  --font-body: "Jura", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  /* Using Exo 2 for titles/headings, Jura for body text */
  font-family: var(--font-heading);
}

/* Light Theme */
:root.light-theme {
  --color-background: #f8fafc;
  --color-surface: rgba(255, 255, 255, 0.9);
  --color-border: rgba(0, 217, 255, 0.4);
  --color-text: #0f172a;
  --color-text-muted: #475569;
  --color-primary: #0891b2;
  --color-primary-glow: rgba(8, 145, 178, 0.3);
  --color-accent: #ea580c;
  --color-accent-glow: rgba(234, 88, 12, 0.3);
  --header-background: rgba(248, 250, 252, 0.85);
  --header-shadow: rgba(8, 145, 178, 0.1);
}

:root.light-theme .auth-error {
  border-color: rgba(220, 38, 38, 0.4);
  background: rgba(220, 38, 38, 0.12);
  box-shadow: 0 12px 30px rgba(220, 38, 38, 0.2);
}

body {
  margin: 0;
  padding: 0;
  background: var(--color-background);
  color: var(--color-text);
  /* Using Jura for body text with better Cyrillic support, Exo 2 as fallback */
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

/* Grid background pattern - This part is removed from the updates, so it should be removed from the final merged code */
/*
body.page::before,
body.auth-page::before,
body.landing-page::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: linear-gradient(var(--grid-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
  z-index: 0;
}
*/

/* Scanline effect - This part is removed from the updates, so it should be removed from the final merged code */
/*
body.page::after,
body.auth-page::after,
body.landing-page::after {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(transparent 50%, rgba(0, 217, 255, 0.02) 50%);
  background-size: 100% 4px;
  pointer-events: none;
  z-index: 1;
  animation: scanline 8s linear infinite;
}

@keyframes scanline {
  0% {
    transform: translateY(0);
  }
  100% {
    transform: translateY(4px);
  }
}
*/

/* ============================================================================
   2. GLOBAL STYLES
   Используется на: всех страницах
   ============================================================================ */

* {
  box-sizing: border-box;
}

/* Body styles with Tron grid background - Updated to reflect new structure */
body.page,
body.auth-page,
body.landing-page {
  margin: 0;
  min-height: 100vh;
  background: var(--color-background);
  color: var(--color-text);
  position: relative;
  overflow-x: hidden;
}

/* ============================================================================
   3. HEADER (БЭМ: app-header, user-button, theme-toggle)
   Используется на: index.html, lesson.html, vocab.html, vocab2.html, phrases.html
   ============================================================================ */

.app-header {
  border-bottom: 1px solid var(--color-border);
  background: var(--header-background);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 0 20px var(--header-shadow), 0 0 40px var(--color-primary-glow);
}

.app-header__inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 20px 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}

.app-header__logo {
  /* Using Exo 2 for logo with better Cyrillic support */
  font-family: "Exo 2", sans-serif;
  font-size: 24px;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 4px;
  text-shadow: 0 0 15px var(--color-primary-glow);
  transition: all var(--transition-base);
}

.app-header__actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.app-header__user {
  position: relative;
}

/* User button in header */
.user-button {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
  cursor: pointer;
  transition: all var(--transition-base);
  font: inherit;
  font-family: var(--font-body);
  color: inherit;
}

.user-button:hover {
  border-color: var(--color-primary);
  box-shadow: 0 0 15px var(--color-primary-glow);
}

.user-button__avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  color: var(--color-background);
  box-shadow: 0 0 10px var(--color-primary-glow);
}

.user-button__label {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
}

/* User dropdown menu */
.user-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 220px;
  background: var(--color-surface); /* Updated background */
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-small);
  padding: 8px;
  box-shadow: 0 0 30px var(--color-primary-glow);
  z-index: 1000;
}

.user-menu__item {
  display: block;
  padding: 12px 16px;
  color: var(--color-text);
  text-decoration: none;
  border-radius: var(--radius-small);
  transition: all var(--transition-base);
  font-weight: 500;
}

.user-menu__item:hover {
  background: rgba(0, 217, 255, 0.1);
  color: var(--color-primary);
}

.user-menu__item--danger {
  color: var(--color-accent);
}

.user-menu__item--danger:hover {
  background: rgba(255, 107, 0, 0.1);
  color: var(--color-accent);
}

/* ============================================================================
   3. LOBBY (БЭМ: lobby, stats-card)
   Используется на: index.html
   ============================================================================ */

.lobby {
  max-width: 1400px;
  margin: 0 auto;
  padding: 60px 32px;
  display: flex;
  flex-direction: column;
  gap: 48px;
  position: relative;
  z-index: 2;
}

/* Lobby header with greeting */
.lobby__header {
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-align: center;
  padding: 32px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-large);
  position: relative;
  overflow: hidden;
}

.lobby__header::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
  animation: shimmer 3s infinite;
}

@keyframes shimmer {
  0%,
  100% {
    opacity: 0.3;
  }
  50% {
    opacity: 1;
  }
}

.lobby__greeting {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.lobby__hello {
  margin: 0;
  font-family: "Exo 2", sans-serif; /* Updated font */
  font-size: 36px;
  font-weight: 700;
  color: var(--color-primary);
  text-shadow: 0 0 20px var(--color-primary-glow);
}

.lobby__subtitle {
  margin: 0;
  font-size: 18px;
  font-weight: 400;
  color: var(--color-text-muted);
}

.lobby__profile {
  display: flex;
  align-items: center;
  gap: 16px;
}

.lobby__avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  border: 1px solid var(--color-primary);
  box-shadow: 0 0 20px var(--color-primary-glow);
}

/* Badge component (used in lobby) */
.badge {
  padding: 8px 16px;
  border-radius: var(--radius-small);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.badge--rank {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: var(--color-background);
  box-shadow: 0 0 15px var(--color-primary-glow);
}

/* ============================================================================
   4. BUTTONS (БЭМ: button)
   Используется на: всех страницах
   ============================================================================ */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  font-size: 16px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  border-radius: var(--radius-small);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  /* Using Exo 2 for buttons with better Cyrillic support */
  font-family: "Exo 2", sans-serif;
  position: relative;
  overflow: hidden;
}

.button::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.button:hover::before {
  width: 300px;
  height: 300px;
}

/* Primary button - orange with neon flicker */
.button--primary {
  background: transparent;
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
  box-shadow: 0 0 15px var(--color-accent-glow);
  animation: neon-flicker 0.5s ease-in-out;
  animation-delay: 8s;
  animation-iteration-count: infinite;
}

.button--primary:hover {
  background: var(--color-accent);
  color: var(--color-background);
  box-shadow: 0 0 30px var(--color-accent-glow);
  animation: none;
}

/* Ghost button - cyan outline */
.button--ghost {
  background: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}

.button--ghost:hover {
  background: var(--color-primary);
  color: var(--color-background);
  box-shadow: 0 0 20px var(--color-primary-glow);
}

/* Вариант кнопки с подписью для страницы лобби. */
.button--cta {
  flex-direction: column;
  gap: 4px;
}

.button__title {
  text-transform: none;
  letter-spacing: 1px;
}

.button__caption {
  font-size: 12px;
  font-weight: 500;
  text-transform: none;
  letter-spacing: normal;
  color: var(--color-text-muted);
}

.lobby__cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  justify-content: center;
}

/* Difficulty Selector */
.difficulty-selector {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 20px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-large);
  box-shadow: 0 0 20px rgba(0, 217, 255, 0.1);
  position: relative;
}

.difficulty-selector::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
  animation: shimmer 3s infinite;
}

.difficulty-selector__label {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin: 0;
}

.difficulty-selector__buttons {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
}

.difficulty-btn {
  padding: 10px 16px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
  color: var(--color-text-muted);
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
  font-family: var(--font-body);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  position: relative;
  overflow: hidden;
}

.difficulty-btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  transition: left 0.5s;
}

.difficulty-btn:hover::before {
  left: 100%;
}

.difficulty-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  box-shadow: 0 0 15px var(--color-primary-glow);
  transform: translateY(-2px);
}

.difficulty-btn--active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-background);
  box-shadow: 0 0 20px var(--color-primary-glow);
  transform: translateY(-2px);
}

.difficulty-btn--nightmare {
  position: relative;
}

.difficulty-btn--nightmare:hover {
  border-color: var(--color-error);
  color: var(--color-error);
  box-shadow: 0 0 15px var(--color-error-glow);
}

.difficulty-btn--nightmare.difficulty-btn--active {
  background: var(--color-error);
  border-color: var(--color-error);
  color: var(--color-background);
  box-shadow: 0 0 20px var(--color-error-glow);
}

.difficulty-btn--nightmare.difficulty-btn--active::before {
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
}

.lobby__cta .button {
  font-size: 20px;
  padding: 20px 48px;
}

/* ============================================================================
   STATS CARDS (БЭМ: stats-card)
   Используется на: index.html
   ============================================================================ */

.lobby__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

/* График накопления фраз */
.lobby__chart {
  margin-top: 32px;
  padding: 32px;
  background: rgba(30, 41, 59, 0.4);
  border: 1px solid rgba(148, 163, 184, 0.1);
  border-radius: 16px;
  backdrop-filter: blur(8px);
}

.lobby__chart-title {
  margin: 0 0 8px 0;
  font-family: "Exo 2", sans-serif;
  font-size: 24px;
  font-weight: 600;
  color: var(--color-text-primary);
}

.lobby__chart-description {
  margin: 0 0 24px 0;
  font-size: 14px;
  color: var(--color-text-muted);
}

#phrasesAccumulationChart {
  max-height: 300px;
}

.stats-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 32px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-large);
  text-decoration: none;
  color: inherit;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.stats-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, transparent, rgba(0, 217, 255, 0.05));
  opacity: 0;
  transition: opacity var(--transition-base);
}

.stats-card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 0 30px var(--color-primary-glow);
  transform: translateY(-4px);
}

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

.stats-card__label {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-text-muted);
  letter-spacing: 2px;
  text-transform: uppercase;
}

.stats-card__value {
  margin: 0;
  /* Using Exo 2 for numeric displays */
  font-family: "Exo 2", sans-serif;
  font-size: 48px;
  font-weight: 900;
  color: var(--color-primary);
  text-shadow: 0 0 15px var(--color-primary-glow);
  line-height: 1;
}

.stats-card__meta,
.stats-card__hint {
  font-size: 15px;
  color: var(--color-text-muted);
}

/* Stars component (used in stats cards) */
.stars {
  display: flex;
  gap: 8px;
}

.stars__item {
  width: 12px;
  height: 12px;
  background: var(--color-border);
  clip-path: polygon(50% 0%, 61% 35%, 98% 35%, 68% 57%, 79% 91%, 50% 70%, 21% 91%, 32% 57%, 2% 35%, 39% 35%);
  transition: all var(--transition-base);
}

.stars__item--active {
  background: var(--color-accent);
  box-shadow: 0 0 10px var(--color-accent-glow);
}

/* ============================================================================
   5. LESSON PAGE (БЭМ: lesson, lesson-progress, lesson-stage, phrase-card)
   Используется на: lesson.html
   ============================================================================ */

.lesson {
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 32px 80px;
  display: flex;
  flex-direction: column;
  gap: 40px;
  position: relative;
  z-index: 2;
}

.lesson__top {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.lesson__title {
  margin: 0;
  font-family: "Exo 2", sans-serif; /* Updated font */
  font-size: 32px;
  font-weight: 700;
  color: var(--color-primary);
  text-shadow: 0 0 15px var(--color-primary-glow);
}

.lesson__subtitle {
  margin: 8px 0 0;
  font-size: 16px;
  color: var(--color-text-muted);
}

/* Progress Bar (БЭМ: lesson-progress) */
.lesson-progress {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.lesson-progress__label {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.lesson-progress__bar {
  height: 8px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  overflow: hidden;
  position: relative;
}

.lesson-progress__fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  box-shadow: 0 0 15px var(--color-primary-glow);
  transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.lesson-progress__fill::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  animation: progress-shine 2s infinite;
}

@keyframes progress-shine {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

/* Lesson Stages (БЭМ: lesson-stage) */
.lesson-stage {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.lesson-stage__header {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 24px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-large);
  box-shadow: 0 0 20px rgba(0, 217, 255, 0.1);
}

.lesson-stage__badge {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--color-accent);
}

.lesson-stage__title {
  margin: 0;
  font-family: "Exo 2", sans-serif; /* Updated font */
  font-size: 24px;
  font-weight: 700;
  color: var(--color-primary);
}

.lesson-stage__description {
  margin: 0;
  font-size: 16px;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.lesson-stage__actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Quote Card (БЭМ: quote-card) */
.quote-card {
  padding: 40px;
  background: var(--color-surface);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-large);
  box-shadow: 0 0 30px var(--color-primary-glow);
  position: relative;
}

.quote-card::before,
.quote-card::after {
  content: '"';
  position: absolute;
  font-family: "Exo 2", sans-serif; /* Updated font */
  font-size: 80px;
  font-weight: 900;
  color: var(--color-primary);
  opacity: 0.2;
}

.quote-card::before {
  top: 10px;
  left: 20px;
}

.quote-card::after {
  bottom: 10px;
  right: 20px;
  content: '"';
}

.quote-card__text {
  margin: 0 0 16px;
  font-size: 22px;
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.6;
  text-align: center;
}

.quote-card__translation {
  margin: 0 0 16px;
  font-size: 16px;
  color: var(--color-text-muted);
  text-align: center;
  font-style: italic;
  padding: 12px 0;
  border-top: 1px dashed var(--color-border);
  position: relative;
}

.quote-card__translation::before {
  content: "🇷🇺";
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-surface);
  padding: 0 8px;
}

.quote-card__footer {
  margin: 0;
  font-size: 14px;
  color: var(--color-accent);
  text-align: center;
  font-weight: 600;
}

/* Phrase Cards (БЭМ: phrase-card) */
.phrase-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.phrase-card {
  padding: 24px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-large);
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: all var(--transition-base);
}

.phrase-card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 0 20px rgba(0, 217, 255, 0.15);
}

.phrase-card__meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.phrase-card__meta-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  justify-content: space-between;
}

.phrase-card__streak {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.phrase-card__help {
  padding: 6px 12px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
  color: var(--color-text-muted);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
  font-family: inherit;
}

.phrase-card__help:hover:not(:disabled) {
  border-color: var(--color-accent);
  color: var(--color-accent);
  box-shadow: 0 0 10px var(--color-accent-glow);
}

.phrase-card__help:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.phrase-card__prompt {
  margin: 0;
  font-size: 18px;
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.5;
}

.phrase-card__input,
.phrase-card__input--multiline {
  width: 100%;
  padding: 14px 16px;
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
  color: var(--color-text);
  font: inherit;
  font-size: 16px;
  transition: all var(--transition-base);
  resize: vertical;
}

.phrase-card__input:focus,
.phrase-card__input--multiline:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 15px var(--color-primary-glow);
}

.phrase-card__input--correct {
  border-color: var(--color-primary);
  box-shadow: 0 0 20px var(--color-primary-glow);
}

.phrase-card__input--incorrect {
  border-color: var(--color-accent);
  box-shadow: 0 0 20px var(--color-accent-glow);
}

.phrase-card__feedback {
  padding: 16px;
  background: rgba(255, 107, 0, 0.1);
  border-radius: var(--radius-small);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.phrase-card__attempts-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
}

.phrase-card__attempts-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.phrase-card__attempt {
  padding: 4px 10px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
  font-size: 13px;
  color: var(--color-text-muted);
}

.phrase-card__feedback-text {
  margin: 0;
  font-size: 16px;
  color: var(--color-text);
  line-height: 1.5;
}

.phrase-card__hint {
  padding: 12px 16px;
  background: rgba(0, 217, 255, 0.1);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-small);
  font-size: 15px;
  color: var(--color-primary);
  font-weight: 500;
}

.phrase-card__hint--timer {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.phrase-card__countdown {
  font-family: "Exo 2", sans-serif; /* Updated font */
  font-weight: 700;
  color: var(--color-accent);
}

/* Word Card (БЭМ: word-card) */
.word-card {
  padding: 32px;
  background: var(--color-surface);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-large);
  box-shadow: 0 0 30px var(--color-primary-glow);
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-top: 24px;
  margin-bottom: 24px;
}

.word-card__header {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
}

.word-card__title {
  margin: 0;
  font-size: 32px;
  font-weight: 700;
  color: var(--color-primary);
  font-family: var(--font-heading);
  text-transform: lowercase;
  letter-spacing: 1px;
}

.word-card__meta {
  display: flex;
  gap: 12px;
  align-items: center;
}

.word-card__category,
.word-card__level {
  padding: 4px 12px;
  background: rgba(0, 217, 255, 0.1);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-small);
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.word-card__section {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.word-card__section-title {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.word-card__translation {
  margin: 0;
  font-size: 20px;
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.4;
}

.word-card__examples,
.word-card__tips {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.word-card__example {
  padding: 12px 16px;
  background: rgba(0, 217, 255, 0.05);
  border-left: 3px solid var(--color-primary);
  border-radius: var(--radius-small);
  font-size: 16px;
  color: var(--color-text);
  font-style: italic;
  line-height: 1.5;
}

.word-card__tip {
  padding: 12px 16px;
  background: rgba(255, 107, 0, 0.05);
  border-left: 3px solid var(--color-accent);
  border-radius: var(--radius-small);
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.5;
}

.word-card__tip::before {
  content: "💡 ";
  margin-right: 4px;
}

/* Summary (БЭМ: summary-grid, summary-card) */
.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
}

.summary-card {
  padding: 28px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-large);
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-align: center;
}

.summary-card__title {
  margin: 0;
  font-size: 14px;
  font-weight: 700;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 1.5px;
}

.summary-card__value {
  margin: 0;
  font-family: "Exo 2", sans-serif; /* Updated font */
  font-size: 56px;
  font-weight: 900;
  color: var(--color-primary);
  text-shadow: 0 0 20px var(--color-primary-glow);
  line-height: 1;
}

.summary-card__hint {
  margin: 0;
  font-size: 14px;
  color: var(--color-text-muted);
}

.summary-feedback {
  padding: 32px;
  background: var(--color-surface);
  border: 1px solid var(--color-primary);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-large);
  box-shadow: 0 0 20px rgba(0, 217, 255, 0.1);
}

.summary-feedback__title {
  margin: 0 0 16px;
  font-family: "Exo 2", sans-serif; /* Updated font */
  font-size: 24px;
  font-weight: 700;
  color: var(--color-primary);
}

.summary-feedback__text {
  margin: 0;
  font-size: 16px;
  color: var(--color-text);
  line-height: 1.6;
}

.summary-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================================================
   6. VOCABULARY PAGES (БЭМ: vocab, vocab-card, vocab-table, modal)
   Используется на: vocab.html, vocab2.html
   ============================================================================ */

.vocab {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 32px 80px;
  display: flex;
  flex-direction: column;
  gap: 32px;
  position: relative;
  z-index: 2;
}

.vocab__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
  flex-wrap: wrap;
}

.vocab__titles {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.vocab__title {
  margin: 0;
  font-family: "Exo 2", sans-serif; /* Updated font */
  font-size: 36px;
  font-weight: 700;
  color: var(--color-primary);
  text-shadow: 0 0 15px var(--color-primary-glow);
}

.vocab__subtitle {
  margin: 0;
  font-size: 16px;
  color: var(--color-text-muted);
}

/* Vocab stats cards */
.vocab__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
}

.vocab-card {
  padding: 24px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-large);
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: all var(--transition-base);
}

.vocab-card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 0 20px rgba(0, 217, 255, 0.15);
}

.vocab-card__title {
  margin: 0;
  font-size: 13px;
  font-weight: 700;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 1.5px;
}

.vocab-card__value {
  margin: 0;
  font-family: "Exo 2", sans-serif; /* Updated font */
  font-size: 42px;
  font-weight: 900;
  color: var(--color-primary);
  text-shadow: 0 0 15px var(--color-primary-glow);
  line-height: 1;
}

.vocab-card__hint {
  margin: 0;
  font-size: 14px;
  color: var(--color-text-muted);
}

/* Filters (БЭМ: vocab-search, vocab-tabs) */
.vocab__filters {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.vocab-search {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.vocab-search__label {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-text);
  text-transform: uppercase;
  letter-spacing: 1.5px;
}

.vocab-search__field input {
  width: 100%;
  padding: 14px 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
  color: var(--color-text);
  font: inherit;
  font-size: 16px;
  transition: all var(--transition-base);
}

.vocab-search__field input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 15px var(--color-primary-glow);
}

.vocab-tabs {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.vocab-tab {
  padding: 10px 20px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
  color: var(--color-text-muted);
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  cursor: pointer;
  transition: all var(--transition-base);
}

.vocab-tab:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.vocab-tab--active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-background);
  box-shadow: 0 0 15px var(--color-primary-glow);
}

/* Vocabulary Table (БЭМ: vocab-table) */
.vocab__table {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  overflow: hidden;
  background: var(--color-surface);
}

.vocab-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
}

.vocab-table thead tr {
  background: var(--color-background-alt);
  text-align: left;
}

.vocab-table th,
.vocab-table td {
  padding: 18px;
  vertical-align: top;
  border-bottom: 1px solid var(--color-border);
}

.vocab-table th {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--color-text-muted);
}

.vocab-table__row:hover {
  background: rgba(0, 217, 255, 0.05);
}

.vocab-table__row:last-child td {
  border-bottom: none;
}

.vocab-word {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.vocab-word__text {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
}

.vocab-word__translation {
  font-size: 14px;
  color: var(--color-text-muted);
}

.vocab-status {
  display: inline-block;
  padding: 6px 12px;
  border-radius: var(--radius-small);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.vocab-status--active {
  background: rgba(0, 217, 255, 0.2);
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}

.vocab-status--review {
  background: rgba(255, 107, 0, 0.2);
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
}

.vocab-status--mastered {
  background: rgba(0, 255, 100, 0.2);
  color: #00ff64;
  border: 1px solid #00ff64;
}

.vocab-status--training {
  background: rgba(139, 157, 181, 0.2);
  color: var(--color-text-muted);
  border: 1px solid var(--color-text-muted);
}

.vocab-metrics {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  color: var(--color-text-muted);
}

.vocab-metrics__item strong {
  color: var(--color-text);
  font-weight: 700;
}

.vocab-cases {
  padding: 8px 16px;
  background: transparent;
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-small);
  color: var(--color-primary);
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
}

.vocab-cases:hover {
  background: var(--color-primary);
  color: var(--color-background);
  box-shadow: 0 0 15px var(--color-primary-glow);
}

/* Pagination (БЭМ: pagination) */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  padding: 24px;
}

.pagination__button {
  padding: 10px 20px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
  color: var(--color-text);
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
}

.pagination__button:hover:not(:disabled) {
  border-color: var(--color-primary);
  color: var(--color-primary);
  box-shadow: 0 0 10px var(--color-primary-glow);
}

.pagination__button:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.pagination__pages {
  display: flex;
  gap: 8px;
  align-items: center;
}

.pagination__page {
  width: 40px;
  height: 40px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
  color: var(--color-text);
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
}

.pagination__page:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.pagination__page--active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-background);
  box-shadow: 0 0 15px var(--color-primary-glow);
}

.pagination__ellipsis {
  color: var(--color-text-muted);
  font-size: 18px;
}

/* Modal (БЭМ: modal) - используется на vocab.html, vocab2.html */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}

.modal__backdrop {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(10, 14, 26, 0.9);
  backdrop-filter: blur(8px);
}

.modal__window {
  position: relative;
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  background: var(--color-surface); /* Updated background */
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-large);
  box-shadow: 0 0 50px var(--color-primary-glow);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.modal__window--wide {
  max-width: 800px;
}

.modal__header {
  padding: 24px 32px;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  background: var(--color-background-alt);
}

.modal__title-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.modal__title {
  margin: 0;
  font-family: "Exo 2", sans-serif; /* Updated font */
  font-size: 24px;
  font-weight: 700;
  color: var(--color-primary);
}

.modal__subtitle {
  font-size: 14px;
  color: var(--color-text-muted);
}

.modal__close {
  width: 36px;
  height: 36px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
  color: var(--color-text);
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
  transition: all var(--transition-base);
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal__close:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  box-shadow: 0 0 10px var(--color-accent-glow);
}

.modal__body {
  padding: 32px;
  overflow-y: auto;
  flex: 1;
}

.modal__section {
  margin-bottom: 32px;
}

.modal__section:last-child {
  margin-bottom: 0;
}

.modal__section-title {
  margin: 0 0 16px;
  font-family: "Exo 2", sans-serif; /* Updated font */
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 1.5px;
}

.modal-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
}

.modal-metrics__item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px;
  border-radius: var(--radius-small);
  border: 1px solid var(--color-border);
  background: var(--color-background);
}

.modal-metrics__label {
  font-size: 11px;
  font-weight: 700;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 1.5px;
}

.modal-metrics__value {
  font-family: "Exo 2", sans-serif; /* Updated font */
  font-size: 28px;
  font-weight: 900;
  color: var(--color-primary);
  line-height: 1;
}

.modal-metrics__value--warn {
  color: var(--color-accent);
}

.modal-phrases {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.modal-phrase {
  padding: 20px;
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.modal-phrase__en {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
}

.modal-phrase__ru {
  margin: 0;
  font-size: 14px;
  color: var(--color-text-muted);
  font-style: italic;
}

.modal-phrase__meta {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
  font-size: 12px;
  color: var(--color-text-dim);
}

.vocab-tag {
  padding: 4px 10px;
  background: rgba(0, 217, 255, 0.15);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-small);
  font-size: 11px;
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.modal-phrase__attempts,
.modal-phrase__timestamp {
  font-size: 12px;
  color: var(--color-text-muted);
}

.modal__note {
  margin: 0;
  padding: 16px;
  background: rgba(0, 217, 255, 0.1);
  border: 1px solid var(--color-primary);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-small);
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.6;
}

.modal__footer {
  padding: 20px 32px;
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  background: var(--color-background-alt);
}

/* ============================================================================
   6.1. VOCABULARY FOCUS PAGE (БЭМ: vocab-focus, vocab-chip)
   Используется на: vocab2.html
   ============================================================================ */

.vocab-focus {
  max-width: 1400px;
  margin: 0 auto;
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  gap: 48px;
  position: relative;
  z-index: 2;
}

.vocab-focus__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
  flex-wrap: wrap;
}

.vocab-focus__titles {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.vocab-focus__title {
  margin: 0;
  font-family: "Exo 2", sans-serif; /* Updated font */
  font-size: 36px;
  font-weight: 700;
  color: var(--color-primary);
  text-shadow: 0 0 15px var(--color-primary-glow);
}

.vocab-focus__subtitle {
  margin: 0;
  font-size: 16px;
  color: var(--color-text-muted);
  max-width: 600px;
}

.vocab-focus__actions {
  display: flex;
  gap: 12px;
}

.vocab-focus__group {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.vocab-focus__group-header {
  display: flex;
  align-items: center;
  gap: 12px;
}

.vocab-focus__group-title {
  margin: 0;
  font-family: "Exo 2", sans-serif; /* Updated font */
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text);
  text-transform: uppercase;
  letter-spacing: 2px;
}

.vocab-focus__count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 32px;
  height: 32px;
  padding: 0 12px;
  background: rgba(0, 217, 255, 0.15);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-small);
  font-family: "Exo 2", sans-serif; /* Updated font */
  font-size: 16px;
  font-weight: 700;
  color: var(--color-primary);
}

/* Word cloud layout */
.vocab-focus__cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding: 24px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  min-height: 120px;
}

.vocab-focus__cloud--secondary {
  background: var(--color-background);
}

/* Word chips/buttons */
.vocab-chip {
  padding: 12px 24px;
  background: transparent;
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-small);
  color: var(--color-primary);
  font: inherit;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.vocab-chip::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0, 217, 255, 0.3), transparent);
  transition: left 0.5s;
}

.vocab-chip:hover::before {
  left: 100%;
}

.vocab-chip:hover {
  border-color: var(--color-primary);
  background: rgba(0, 217, 255, 0.1);
  box-shadow: 0 0 20px var(--color-primary-glow);
  transform: translateY(-2px);
}

.vocab-chip--active {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.vocab-chip--mastered {
  border-color: #00ff64;
  color: #00ff64;
}

.vocab-chip--mastered::before {
  background: linear-gradient(90deg, transparent, rgba(0, 255, 100, 0.3), transparent);
}

.vocab-chip--mastered:hover {
  border-color: #00ff64;
  background: rgba(0, 255, 100, 0.1);
  box-shadow: 0 0 20px rgba(0, 255, 100, 0.3);
}

/* ============================================================================
   7. AUTH PAGES (БЭМ: auth-page, auth-card, auth-form)
   Используется на: login.html, register.html, password.html
   ============================================================================ */

.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px;
}

.auth-card {
  width: 100%;
  max-width: 440px;
  padding: 48px;
  background: var(--color-surface);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-large);
  box-shadow: 0 0 50px var(--color-primary-glow);
  display: flex;
  flex-direction: column;
  gap: 32px;
}

/* Мобильная версия для страниц авторизации: шапка переезжает вверх, карточка растягивается. */
@media (max-width: 768px) {
  body.auth-page {
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    padding: 24px 16px;
    gap: 24px;
  }

  .auth-main {
    display: flex;
    justify-content: center;
  }

  .auth-card {
    max-width: 100%;
    padding: 32px 24px;
  }

  .auth-page .app-header {
    position: static;
  }

  .auth-page .app-header__inner {
    padding: 16px 20px;
  }
}

.auth-card__header {
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-align: center;
}

.auth-card__title {
  margin: 0;
  /* Using Exo 2 for auth titles */
  font-family: "Exo 2", sans-serif;
  font-size: 28px;
  font-weight: 700;
  color: var(--color-primary);
  text-shadow: 0 0 15px var(--color-primary-glow);
}

.auth-card__subtitle {
  margin: 0;
  font-size: 15px;
  color: var(--color-text-muted);
}

.auth-info {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 18px;
  border-radius: var(--radius-medium);
  border: 1px solid rgba(0, 180, 90, 0.4);
  background: rgba(0, 180, 90, 0.12);
  color: var(--color-text);
  font-size: 15px;
  letter-spacing: 0.2px;
  box-shadow: 0 12px 30px rgba(0, 180, 90, 0.2);
}

.auth-info__icon {
  font-size: 18px;
  line-height: 1.1;
  text-shadow: 0 0 10px rgba(0, 180, 90, 0.6);
}

.auth-info__text {
  flex: 1;
}

.auth-error {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 18px;
  border-radius: var(--radius-medium);
  border: 1px solid rgba(255, 0, 85, 0.4);
  background: rgba(255, 0, 85, 0.12);
  color: var(--color-text);
  font-size: 15px;
  letter-spacing: 0.2px;
  box-shadow: 0 12px 30px rgba(255, 0, 85, 0.25);
}

.auth-error__icon {
  font-size: 18px;
  line-height: 1.1;
  text-shadow: 0 0 10px rgba(255, 0, 85, 0.8);
}

.auth-error__text {
  flex: 1;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.auth-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.auth-label {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-text);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.auth-input {
  padding: 14px 16px;
  border-radius: var(--radius-small);
  border: 1px solid var(--color-border);
  background: var(--color-background);
  color: var(--color-text);
  font: inherit;
  font-family: var(--font-body);
  font-size: 15px;
  transition: all var(--transition-base);
}

.auth-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 15px var(--color-primary-glow);
}

/* Сбрасываем фон автозаполненных полей в WebKit-браузерах. */
.auth-input:-webkit-autofill,
.auth-input:-webkit-autofill:hover,
.auth-input:-webkit-autofill:focus {
  -webkit-text-fill-color: var(--color-text);
  -webkit-box-shadow: 0 0 0 1000px var(--color-background) inset;
  box-shadow: 0 0 0 1000px var(--color-background) inset;
  border-color: var(--color-border);
  caret-color: var(--color-text);
  font-family: var(--font-body) !important;
  font-size: 15px;
}

.auth-links {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  gap: 12px;
  flex-wrap: wrap;
}

.auth-link,
.landing-link {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
  transition: all var(--transition-base);
}

.auth-link:hover,
.landing-link:hover {
  color: var(--color-accent);
  text-shadow: 0 0 10px var(--color-accent-glow);
}

/* ============================================================================
   8. LANDING PAGE (БЭМ: landing-page, landing-header, landing-hero, landing-section)
   Используется на: landing.html
   ============================================================================ */

.landing-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Landing Header */
.landing-header {
  border-bottom: 1px solid var(--color-border);
  background: var(--header-background);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 0 20px var(--header-shadow), 0 0 40px var(--color-primary-glow);
}

.landing-header__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  position: relative;
  z-index: 2;
}

.landing-header__brand {
  text-decoration: none;
}

.landing-header__logo {
  /* Using Exo 2 for landing logo */
  font-family: "Exo 2", sans-serif;
  font-size: 28px;
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 4px;
  text-shadow: 0 0 20px var(--color-primary-glow);
}

.landing-nav {
  display: flex;
  gap: 32px;
  align-items: center;
}

.landing-nav__item {
  color: var(--color-text);
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  transition: all var(--transition-base);
  position: relative;
}

.landing-nav__item::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-primary);
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

.landing-nav__item:hover {
  color: var(--color-primary);
}

.landing-nav__item:hover::after {
  transform: scaleX(1);
}

.landing-header__actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.landing-header__burger {
  display: none;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
  color: var(--color-text);
  font-size: 20px;
  cursor: pointer;
  transition: all var(--transition-base);
}

.landing-header__burger:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* Landing Content */
.landing {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 80px;
  padding: 80px 32px 120px;
  position: relative;
  z-index: 2;
}

/* Hero Section (БЭМ: landing-hero) */
.landing-hero {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 60px;
  align-items: center;
}

.landing-hero__text {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.landing-tag {
  width: fit-content;
  padding: 8px 16px;
  border-radius: var(--radius-small);
  background: rgba(0, 217, 255, 0.15);
  border: 1px solid var(--color-primary);
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
}

.landing-hero__text h1 {
  margin: 0;
  /* Using Exo 2 for hero title */
  font-family: "Exo 2", sans-serif;
  font-size: 48px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--color-text);
  text-shadow: 0 0 20px rgba(0, 217, 255, 0.3);
}

.landing-hero__text p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 17px;
  line-height: 1.7;
}

.landing-hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.landing-hero__bullets {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.landing-hero__bullets li {
  padding-left: 28px;
  position: relative;
  color: var(--color-text-muted);
  font-size: 15px;
}

.landing-hero__bullets li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-size: 18px;
}

.hero-card {
  padding: 32px;
  background: var(--color-surface);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-large);
  box-shadow: 0 0 40px var(--color-primary-glow);
}

.hero-card h3 {
  margin: 0 0 20px;
  /* Using Exo 2 for card headings */
  font-family: "Exo 2", sans-serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
}

.hero-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.hero-card li {
  padding-left: 24px;
  position: relative;
  color: var(--color-text);
  font-size: 15px;
  line-height: 1.5;
}

.hero-card li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}

/* Landing Sections (БЭМ: landing-section) */
.landing-section {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.landing-section__intro {
  display: flex;
  flex-direction: column;
  gap: 16px;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.landing-section__intro h2 {
  margin: 0;
  /* Using Exo 2 for section headings */
  font-family: "Exo 2", sans-serif;
  font-size: 36px;
  font-weight: 700;
  color: var(--color-primary);
  text-shadow: 0 0 20px var(--color-primary-glow);
}

.landing-section__intro p {
  margin: 0;
  font-size: 17px;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* Landing Cards - Fixed 3-column layout */
.landing-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
}

@media (min-width: 1024px) {
  .landing-cards {
    grid-template-columns: repeat(3, 1fr);
  }
}

.landing-card {
  padding: 32px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-large);
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: all var(--transition-base);
}

.landing-card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 0 30px var(--color-primary-glow);
  transform: translateY(-4px);
}

.landing-card h3 {
  margin: 0;
  /* Using Exo 2 for landing card titles */
  font-family: "Exo 2", sans-serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
}

.landing-card p {
  margin: 0;
  font-size: 15px;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.landing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
}

.landing-feature {
  padding: 28px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-large);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.landing-feature h3 {
  margin: 0;
  /* Using Exo 2 for feature titles */
  font-family: "Exo 2", sans-serif;
  font-size: 20px;
  font-weight: 700;
  color: var(--color-accent);
}

.landing-feature p {
  margin: 0;
  font-size: 15px;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.landing-section--alt {
  padding: 60px 40px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-large);
}

/* CTA Section */
.landing-cta {
  max-width: 800px;
  margin: 0 auto;
  padding: 60px 40px;
  background: var(--color-surface);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-large);
  box-shadow: 0 0 50px var(--color-primary-glow);
  text-align: center;
}

.landing-cta__content {
  display: flex;
  flex-direction: column;
  gap: 24px;
  align-items: center;
}

.landing-cta__content h2 {
  margin: 0;
  /* Using Exo 2 for CTA heading */
  font-family: "Exo 2", sans-serif;
  font-size: 36px;
  font-weight: 700;
  color: var(--color-primary);
  text-shadow: 0 0 20px var(--color-primary-glow);
}

.landing-cta__content p {
  margin: 0;
  font-size: 17px;
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: 600px;
}

.landing-cta__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}

/* Landing Footer */
.landing-footer {
  border-top: 1px solid var(--color-border);
  background: var(--color-background-alt);
  padding: 32px;
  position: relative;
  z-index: 2;
}

.landing-footer__inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.landing-footer__inner p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 14px;
}

.landing-footer__links {
  display: flex;
  gap: 24px;
}

.landing-footer__links a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 14px;
  transition: all var(--transition-base);
}

.landing-footer__links a:hover {
  color: var(--color-primary);
}

/* ============================================================================
   9. THEME TOGGLE (БЭМ: theme-toggle)
   Используется на: всех страницах
   ============================================================================ */

.theme-toggle {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  box-shadow: 0 0 20px rgba(0, 217, 255, 0.2);
  cursor: pointer;
  transition: all var(--transition-base);
  /* Using Exo 2 for theme toggle text */
  font-family: "Exo 2", monospace;
  font-size: 12px;
  font-weight: 700;
  color: var(--color-text);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.theme-toggle-switch {
  position: relative;
  width: 40px;
  height: 20px;
  background: var(--color-background-alt);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  transition: all var(--transition-base);
}

.theme-toggle-switch::before {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 14px;
  height: 14px;
  background: var(--color-primary);
  border-radius: 50%;
  transition: all var(--transition-base);
  box-shadow: 0 0 10px var(--color-primary-glow);
}

:root.light-theme .theme-toggle-switch::before {
  transform: translateX(20px);
  background: var(--color-accent);
  box-shadow: 0 0 10px var(--color-accent-glow);
}

.theme-toggle-icon {
  font-size: 16px;
  transition: all var(--transition-base);
}

/* ============================================================================
   10. ANIMATIONS & RESPONSIVE
   ============================================================================ */

/* Neon flicker animation for primary button */
@keyframes neon-flicker {
  0%,
  100% {
    opacity: 1;
    box-shadow: 0 0 15px var(--color-accent-glow);
  }
  2% {
    opacity: 0.8;
    box-shadow: 0 0 8px var(--color-accent-glow);
  }
  4% {
    opacity: 1;
    box-shadow: 0 0 15px var(--color-accent-glow);
  }
  6% {
    opacity: 0.85;
    box-shadow: 0 0 10px var(--color-accent-glow);
  }
  8% {
    opacity: 1;
    box-shadow: 0 0 15px var(--color-accent-glow);
  }
}

/* Responsive breakpoints */
@media (max-width: 768px) {
  .landing-nav {
    display: none;
  }

  .landing-header__burger {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .landing-hero {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .landing-hero__text h1 {
    font-size: 36px;
  }

  .lobby__header {
    flex-direction: column;
    align-items: flex-start;
  }

  .vocab-table {
    font-size: 14px;
  }

  .vocab-table th,
  .vocab-table td {
    padding: 12px;
  }
}

/* Alpine.js cloak utility */
[x-cloak] {
  display: none !important;
}

/* ==========================================================================
   10. LEADERBOARD PAGE (leaderboard.html)
   ========================================================================== */

/* leaderboard - Main container for leaderboard page */
.leaderboard {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 24px;
}

/* leaderboard__head - Header section with title and actions */
.leaderboard__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
  margin-bottom: 32px;
}

.leaderboard__titles {
  flex: 1;
}

.leaderboard__title {
  font-family: "Exo 2", sans-serif;
  font-size: 32px;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0 0 8px 0;
  text-shadow: 0 0 20px var(--color-primary-glow); /* Changed from var(--glow-primary) to var(--color-primary-glow) */
}

.leaderboard__subtitle {
  font-size: 16px;
  color: var(--color-text-muted); /* Changed from var(--text-secondary) to var(--color-text-muted) */
  margin: 0;
  line-height: 1.5;
}

.leaderboard__actions {
  display: flex;
  gap: 12px;
}

/* leaderboard__stats - Stats cards showing user position */
.leaderboard__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 32px;
}

/* leaderboard-card - Individual stat card */
.leaderboard-card {
  background: var(--color-surface); /* Changed from var(--bg-secondary) to var(--color-surface) */
  border: 1px solid var(--color-border); /* Changed from var(--border-color) to var(--color-border) */
  border-radius: var(--radius-small); /* Changed from 6px to var(--radius-small) */
  padding: 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: all var(--transition-base);
}

.leaderboard-card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 0 20px var(--color-primary-glow); /* Changed from var(--glow-primary) to var(--color-primary-glow) */
  transform: translateY(-2px);
}

.leaderboard-card--highlight {
  border-color: var(--color-primary);
  box-shadow: 0 0 15px var(--color-primary-glow); /* Changed from var(--glow-primary) to var(--color-primary-glow) */
}

.leaderboard-card__icon {
  font-size: 32px;
  line-height: 1;
}

.leaderboard-card__content {
  flex: 1;
}

.leaderboard-card__title {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-muted); /* Changed from var(--text-secondary) to var(--color-text-muted) */
  margin: 0 0 8px 0;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.leaderboard-card__value {
  font-family: "Exo 2", sans-serif;
  font-size: 28px;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0 0 4px 0;
  text-shadow: 0 0 10px var(--color-primary-glow); /* Changed from var(--glow-primary) to var(--color-primary-glow) */
}

.leaderboard-card__hint {
  font-size: 13px;
  color: var(--color-text-muted); /* Changed from var(--text-tertiary) to var(--color-text-muted) */
  margin: 0;
}

/* leaderboard__filters - Tab filters for time periods */
.leaderboard__filters {
  margin-bottom: 24px;
}

.leaderboard-tabs {
  display: flex;
  gap: 8px;
  background: var(--color-surface); /* Changed from var(--bg-secondary) to var(--color-surface) */
  border: 1px solid var(--color-border); /* Changed from var(--border-color) to var(--color-border) */
  border-radius: var(--radius-small); /* Changed from 6px to var(--radius-small) */
  padding: 4px;
  width: fit-content;
}

.leaderboard-tab {
  background: transparent;
  border: none;
  color: var(--color-text-muted); /* Changed from var(--text-secondary) to var(--color-text-muted) */
  font-family: "Jura", sans-serif;
  font-size: 14px;
  font-weight: 600;
  padding: 8px 20px;
  border-radius: var(--radius-small); /* Changed from 4px to var(--radius-small) */
  cursor: pointer;
  transition: all var(--transition-base);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.leaderboard-tab:hover {
  color: var(--color-primary);
  background: rgba(0, 217, 255, 0.1);
}

.leaderboard-tab--active {
  background: var(--color-primary);
  color: var(--color-background); /* Changed from var(--bg-primary) to var(--color-background) */
  box-shadow: 0 0 15px var(--color-primary-glow); /* Changed from var(--glow-primary) to var(--color-primary-glow) */
}

/* leaderboard__table - Main leaderboard list */
.leaderboard__table {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.leaderboard-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* leaderboard-item - Individual user entry */
.leaderboard-item {
  background: var(--color-surface); /* Changed from var(--bg-secondary) to var(--color-surface) */
  border: 1px solid var(--color-border); /* Changed from var(--border-color) to var(--color-border) */
  border-radius: var(--radius-small); /* Changed from 6px to var(--radius-small) */
  padding: 20px;
  display: grid;
  grid-template-columns: 60px 1fr auto auto;
  align-items: center;
  gap: 20px;
  transition: all var(--transition-base);
}

.leaderboard-item:hover {
  border-color: var(--color-primary);
  box-shadow: 0 0 20px var(--color-primary-glow); /* Changed from var(--glow-primary) to var(--color-primary-glow) */
  transform: translateX(4px);
}

.leaderboard-item--current {
  border-color: var(--color-accent);
  box-shadow: 0 0 20px var(--color-accent-glow); /* Changed from var(--glow-accent) to var(--color-accent-glow) */
  background: rgba(255, 107, 0, 0.05);
}

.leaderboard-item--top {
  border-width: 2px;
}

.leaderboard-item--top:nth-child(1) {
  border-color: #ffd700;
  box-shadow: 0 0 25px rgba(255, 215, 0, 0.3);
}

.leaderboard-item--top:nth-child(2) {
  border-color: #c0c0c0;
  box-shadow: 0 0 20px rgba(192, 192, 192, 0.3);
}

.leaderboard-item--top:nth-child(3) {
  border-color: #cd7f32;
  box-shadow: 0 0 20px rgba(205, 127, 50, 0.3);
}

.leaderboard-item__rank {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.leaderboard-item__rank-number {
  font-family: "Exo 2", sans-serif;
  font-size: 24px;
  font-weight: 700;
  color: var(--color-primary);
  text-shadow: 0 0 10px var(--color-primary-glow); /* Changed from var(--glow-primary) to var(--color-primary-glow) */
}

.leaderboard-item__medal {
  font-size: 24px;
  line-height: 1;
}

.leaderboard-item__user {
  display: flex;
  align-items: center;
  gap: 16px;
}

.leaderboard-item__avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-background); /* Changed from var(--bg-primary) to var(--color-background) */
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "Exo 2", sans-serif;
  font-size: 20px;
  font-weight: 700;
  box-shadow: 0 0 15px var(--color-primary-glow); /* Changed from var(--glow-primary) to var(--color-primary-glow) */
}

.leaderboard-item__info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.leaderboard-item__name {
  font-family: "Exo 2", sans-serif;
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text); /* Changed from var(--text-primary) to var(--color-text) */
}

.leaderboard-item__level {
  font-size: 13px;
  color: var(--color-text-muted); /* Changed from var(--text-secondary) to var(--color-text-muted) */
}

.leaderboard-item__metrics {
  display: flex;
  gap: 24px;
}

.leaderboard-metric {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.leaderboard-metric__label {
  font-size: 12px;
  color: var(--color-text-muted); /* Changed from var(--text-tertiary) to var(--color-text-muted) */
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.leaderboard-metric__value {
  font-family: "Exo 2", sans-serif;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text); /* Changed from var(--text-primary) to var(--color-text) */
}

.leaderboard-item__score {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
}

.leaderboard-item__score-value {
  font-family: "Exo 2", sans-serif;
  font-size: 24px;
  font-weight: 700;
  color: var(--color-accent);
  text-shadow: 0 0 10px var(--color-accent-glow); /* Changed from var(--glow-accent) to var(--color-accent-glow) */
}

.leaderboard-item__score-label {
  font-size: 12px;
  color: var(--color-text-muted); /* Changed from var(--text-tertiary) to var(--color-text-muted) */
}

/* leaderboard__info - Info section explaining scoring */
.leaderboard__info {
  background: var(--color-surface); /* Changed from var(--bg-secondary) to var(--color-surface) */
  border: 1px solid var(--color-border); /* Changed from var(--border-color) to var(--color-border) */
  border-radius: var(--radius-small); /* Changed from 6px to var(--radius-small) */
  padding: 24px;
}

.leaderboard__info-title {
  font-family: "Exo 2", sans-serif;
  font-size: 18px;
  font-weight: 600;
  color: var(--color-primary);
  margin: 0 0 16px 0;
}

.leaderboard__info-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.leaderboard__info-list li {
  font-size: 14px;
  color: var(--color-text-muted); /* Changed from var(--text-secondary) to var(--color-text-muted) */
  line-height: 1.6;
  padding-left: 20px;
  position: relative;
}

.leaderboard__info-list li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: 700;
}

.leaderboard__info-list strong {
  color: var(--color-text); /* Changed from var(--text-primary) to var(--color-text) */
  font-weight: 600;
}

/* Responsive adjustments for leaderboard */
@media (max-width: 1024px) {
  .leaderboard-item {
    grid-template-columns: 50px 1fr;
    gap: 16px;
  }

  .leaderboard-item__metrics {
    grid-column: 1 / -1;
    justify-content: space-around;
  }

  .leaderboard-item__score {
    grid-column: 1 / -1;
    align-items: center;
  }
}

@media (max-width: 768px) {
  .leaderboard__stats {
    grid-template-columns: 1fr;
  }

  .leaderboard__head {
    flex-direction: column;
  }

  .leaderboard-item {
    padding: 16px;
  }

  .leaderboard-item__metrics {
    gap: 16px;
  }

  .leaderboard-metric__value {
    font-size: 14px;
  }
}

/* ==========================================================================
   RESPONSIVE & UTILITIES
   ========================================================================== */

@media (max-width: 768px) {
  .landing-nav {
    display: none;
  }

  .landing-header__burger {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .landing-hero {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .landing-hero__text h1 {
    font-size: 36px;
  }

  .lobby__header {
    flex-direction: column;
    align-items: flex-start;
  }

  .vocab-table {
    font-size: 14px;
  }

  .vocab-table th,
  .vocab-table td {
    padding: 12px;
  }
}

/* Alpine.js cloak utility */
[x-cloak] {
  display: none !important;
}

/* ============================================================================
   8. PHRASES PAGE (БЭМ: phrases, phrases-card, phrases-search, phrases-table)
   Используется на: phrases.html
   ============================================================================ */

.phrases {
  max-width: 1400px;
  margin: 0 auto;
  padding: 40px 32px 80px;
  display: flex;
  flex-direction: column;
  gap: 40px;
  position: relative;
  z-index: 2;
}

.phrases__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
  flex-wrap: wrap;
}

.phrases__titles {
  flex: 1;
  min-width: 300px;
}

.phrases__title {
  margin: 0 0 12px 0;
  font-size: 36px;
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 2px;
  text-shadow: 0 0 20px var(--color-primary-glow);
}

.phrases__subtitle {
  margin: 0;
  font-size: 16px;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.phrases__actions {
  display: flex;
  gap: 12px;
  align-items: center;
}

/* Phrases Stats Cards */
.phrases__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.phrases-card {
  padding: 24px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-large);
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.phrases-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.phrases-card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 0 20px var(--color-primary-glow);
}

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

.phrases-card__title {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.phrases-card__value {
  margin: 0;
  font-size: 42px;
  font-weight: 700;
  color: var(--color-primary);
  font-family: "Exo 2", sans-serif;
  text-shadow: 0 0 15px var(--color-primary-glow);
}

.phrases-card__hint {
  margin: 0;
  font-size: 13px;
  color: var(--color-text-dim);
  line-height: 1.4;
}

/* Phrases Filters */
.phrases__filters {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.phrases-search {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.phrases-search__label {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.phrases-search__field input {
  width: 100%;
  padding: 14px 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
  color: var(--color-text);
  font: inherit;
  font-size: 16px;
  transition: all var(--transition-base);
}

.phrases-search__field input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 15px var(--color-primary-glow);
}

.phrases-search__field input::placeholder {
  color: var(--color-text-dim);
}

/* Phrases Tabs */
.phrases-tabs {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.phrases-tab {
  padding: 10px 20px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
  color: var(--color-text-muted);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
  font-family: inherit;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.phrases-tab:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  box-shadow: 0 0 10px var(--color-primary-glow);
}

.phrases-tab--active {
  background: rgba(0, 217, 255, 0.1);
  border-color: var(--color-primary);
  color: var(--color-primary);
  box-shadow: 0 0 15px var(--color-primary-glow);
}

/* Phrases Table */
.phrases__table {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.phrases-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-large);
  overflow: hidden;
}

.phrases-table thead {
  background: rgba(0, 217, 255, 0.05);
  border-bottom: 1px solid var(--color-border);
}

.phrases-table th {
  padding: 16px;
  text-align: left;
  font-size: 13px;
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 1px;
  border-bottom: 1px solid var(--color-border);
}

.phrases-table__row {
  border-bottom: 1px solid var(--color-border);
  transition: all var(--transition-base);
}

.phrases-table__row:hover {
  background: rgba(0, 217, 255, 0.03);
}

.phrases-table__row:last-child {
  border-bottom: none;
}

.phrases-table td {
  padding: 20px 16px;
  color: var(--color-text);
  font-size: 15px;
  vertical-align: top;
}

.phrases-table__empty td {
  padding: 40px;
  text-align: center;
  color: var(--color-text-muted);
  font-style: italic;
}

/* Phrase Text */
.phrase-text {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.phrase-text__ru {
  margin: 0;
  font-size: 15px;
  color: var(--color-text);
  font-weight: 500;
}

.phrase-text__en {
  margin: 0;
  font-size: 14px;
  color: var(--color-text-muted);
  font-style: italic;
}

/* Phrase Status */
.phrase-status {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.phrase-status__badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--radius-small);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border: 1px solid;
}

.phrase-status__badge--training {
  background: rgba(0, 217, 255, 0.1);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.phrase-status__badge--review {
  background: rgba(255, 107, 0, 0.1);
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.phrase-status__badge--mastered {
  background: rgba(0, 255, 136, 0.1);
  border-color: #00ff88;
  color: #00ff88;
}

.phrase-status__theme {
  font-size: 13px;
  color: var(--color-text-dim);
}

/* Phrase Stars */
.phrase-stars {
  display: flex;
  gap: 4px;
  align-items: center;
}

.phrase-stars__item {
  width: 16px;
  height: 16px;
  border: 1px solid var(--color-border);
  border-radius: 2px;
  background: transparent;
  transition: all var(--transition-base);
  position: relative;
}

.phrase-stars__item--active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  box-shadow: 0 0 8px var(--color-primary-glow);
}

.phrase-stars__item--active::after {
  content: "★";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 10px;
  color: var(--color-background);
}

/* Phrase Accuracy */
.phrase-accuracy {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.phrase-accuracy__value {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  font-family: "Exo 2", sans-serif;
}

.phrase-accuracy__percent {
  font-size: 13px;
  color: var(--color-text-muted);
}

/* Phrases Cases Button */
.phrases-cases {
  padding: 8px 16px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
  font-family: inherit;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.phrases-cases:hover {
  border-color: var(--color-primary);
  background: rgba(0, 217, 255, 0.1);
  box-shadow: 0 0 10px var(--color-primary-glow);
}

/* Modal Enhancements for Phrases */
.modal__window--wide {
  max-width: 800px;
}

.modal__body--phrase {
  max-height: 60vh;
  overflow-y: auto;
}

.modal__section {
  padding: 24px 0;
  border-bottom: 1px solid var(--color-border);
}

.modal__section:last-child {
  border-bottom: none;
}

.modal__section-title {
  margin: 0 0 16px 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.modal-progress {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.modal-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 16px;
}

.modal-metrics__item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 12px;
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
}

.modal-metrics__label {
  font-size: 12px;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.modal-metrics__value {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary);
  font-family: "Exo 2", sans-serif;
}

.modal-attempts {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.modal-attempt {
  padding: 16px;
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.modal-attempt__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.modal-attempt__status {
  padding: 4px 10px;
  border-radius: var(--radius-small);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border: 1px solid;
}

.modal-attempt__status--correct {
  background: rgba(0, 255, 136, 0.1);
  border-color: #00ff88;
  color: #00ff88;
}

.modal-attempt__status--incorrect {
  background: rgba(255, 107, 0, 0.1);
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.modal-attempt__time {
  font-size: 12px;
  color: var(--color-text-dim);
  font-family: "Exo 2", sans-serif;
}

.modal-attempt__answer {
  margin: 0;
  font-size: 15px;
  color: var(--color-text);
  font-weight: 500;
}

.modal-attempt__feedback {
  margin: 0;
  padding: 10px;
  background: rgba(255, 107, 0, 0.05);
  border-left: 2px solid var(--color-accent);
  font-size: 14px;
  color: var(--color-text-muted);
  font-style: italic;
}

.modal__note {
  margin: 0;
  padding: 16px;
  background: rgba(0, 217, 255, 0.05);
  border-left: 3px solid var(--color-primary);
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.6;
}

/* Responsive adjustments for phrases table */
@media (max-width: 768px) {
  .phrases-table thead {
    display: none;
  }

  .phrases-table,
  .phrases-table tbody,
  .phrases-table tr,
  .phrases-table td {
    display: block;
  }

  .phrases-table__row {
    margin-bottom: 20px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-small);
  }

  .phrases-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--color-border);
    position: relative;
    padding-left: 50%;
  }

  .phrases-table td:last-child {
    border-bottom: none;
  }

  .phrases-table td::before {
    content: attr(data-label);
    position: absolute;
    left: 16px;
    font-weight: 700;
    color: var(--color-primary);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
  }
}

/* ============================================================================
   9. AUTH PAGES (БЭМ: auth-page, auth-card, auth-form)
   Используется на: login.html, register.html, password.html
   ============================================================================ */

/* Auth Options - for "Remember Me" checkbox and other auth options */
.auth-options {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 8px 0 4px;
}

/* Custom checkbox styling */
.auth-checkbox {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  user-select: none;
  font-size: 14px;
  color: var(--color-text-muted);
  transition: all var(--transition-base);
}

.auth-checkbox:hover {
  color: var(--color-text);
}

.auth-checkbox__input {
  opacity: 0;
  position: absolute;
  width: 0;
  height: 0;
}

.auth-checkbox__checkmark {
  position: relative;
  width: 20px;
  height: 20px;
  background: var(--color-background);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-small);
  transition: all var(--transition-base);
  flex-shrink: 0;
}

.auth-checkbox__checkmark::after {
  content: "✓";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0);
  font-size: 12px;
  font-weight: 700;
  color: var(--color-primary);
  transition: transform var(--transition-base);
}

.auth-checkbox__input:checked + .auth-checkbox__checkmark {
  background: rgba(0, 217, 255, 0.1);
  border-color: var(--color-primary);
  box-shadow: 0 0 10px var(--color-primary-glow);
}

.auth-checkbox__input:checked + .auth-checkbox__checkmark::after {
  transform: translate(-50%, -50%) scale(1);
}

.auth-checkbox__label {
  font-size: 14px;
  color: var(--color-text);
  font-weight: 500;
  cursor: pointer;
}

/* Landing user info for authenticated users */
.landing-user {
  color: var(--color-primary);
  font-weight: 600;
  font-size: 14px;
  margin-right: 8px;
}

/* Auth form mobile adjustments */
@media (max-width: 480px) {
  .auth-options {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
}

/* Spinner для загрузки и завершения урока */
.spinner {
  width: 48px;
  height: 48px;
  position: relative;
}

.spinner-ring {
  width: 100%;
  height: 100%;
  border: 4px solid var(--border-color, #e0e0e0);
  border-top-color: var(--color-primary, #4a90e2);
  border-radius: 50%;
  animation: spinner-rotate 1s linear infinite;
}

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

/* Leaderboard styles */
.leaderboard-item__score-value--bold {
  font-weight: bold;
}

.leaderboard-loading {
  text-align: center;
  padding: 2rem;
  color: var(--color-text-muted);
}

.leaderboard-empty {
  text-align: center;
  padding: 2rem;
  color: var(--color-text-muted);
  font-style: italic;
}

.leaderboard__week-indicator {
  text-align: center;
  margin: 20px 0;
}

.week-info {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-large);
  font-size: 14px;
  color: var(--color-text-muted);
}

.week-info__label {
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
  font-size: 12px;
}

.week-info__date {
  font-weight: 700;
  color: var(--color-primary);
}