/*
================================================================================
  EDYOU DESIGN SYSTEM v3.0
  Matching the official Bolt.host Edyou identity:
  - Background: #0a0a0f (edyou-dark)
  - Primary: #8b5cf6 (edyou-violet)
  - Accent: #14b8a6 (edyou-teal)
  - Font: Inter
  - Style: Premium glassmorphism + ambient glows
================================================================================
*/

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

:root {
  /* ── Core Brand Colors (Bolt.host Edyou palette) ── */
  --edyou-dark: #0a0a0f;
  --edyou-darker: #050508;
  --edyou-dark-mid: #12121a;
  --edyou-violet: #8b5cf6;
  --edyou-violet-mid: #6d28d9;
  --edyou-violet-light: #a78bfa;
  --edyou-teal: #14b8a6;
  --edyou-teal-light: #5eead4;
  --edyou-teal-dark: #0d9488;

  /* ── Aliases for legacy compatibility ── */
  --bg-dark-primary: var(--edyou-dark);
  --bg-dark-secondary: var(--edyou-dark-mid);
  --primary-indigo: var(--edyou-violet);
  --primary-indigo-hover: var(--edyou-violet-mid);
  --secondary-blue: var(--edyou-teal);
  --secondary-blue-hover: var(--edyou-teal-dark);
  --accent-purple: var(--edyou-violet-light);
  --accent-purple-hover: #c4b5fd;
  --accent-emerald: var(--edyou-teal-light);
  --accent-teal: var(--edyou-teal-light);
  --accent-rose: #f87171;
  --accent-amber: #fbbf24;

  /* ── Text Colors ── */
  --text-main: #e2e8f0;
  --text-muted: #94a3b8;
  --text-dimmed: #64748b;

  /* ── Glassmorphism ── */
  --glass-bg: rgba(255, 255, 255, 0.03);
  --glass-bg-mid: rgba(255, 255, 255, 0.05);
  --glass-bg-hover: rgba(255, 255, 255, 0.06);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-border-mid: rgba(255, 255, 255, 0.12);
  --glass-border-focus: rgba(139, 92, 246, 0.5);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
  --glass-blur: blur(24px);

  /* ── Glow Effects ── */
  --glow-violet: 0 0 40px rgba(139, 92, 246, 0.3), 0 0 80px rgba(139, 92, 246, 0.15);
  --glow-teal: 0 0 40px rgba(20, 184, 166, 0.3), 0 0 80px rgba(20, 184, 166, 0.15);

  /* ── Gradients ── */
  --gradient-violet: linear-gradient(135deg, var(--edyou-violet-light), var(--edyou-violet), #c4b5fd);
  --gradient-teal: linear-gradient(135deg, var(--edyou-teal-light), var(--edyou-teal), var(--edyou-teal-dark));
  --gradient-hero: linear-gradient(135deg, var(--edyou-violet), var(--edyou-teal));
  --gradient-cta: linear-gradient(135deg, var(--edyou-violet), var(--edyou-violet-mid));

  /* ── Typography ── */
  --font-sans: 'Outfit', system-ui, -apple-system, sans-serif;
  --font-display: 'Outfit', system-ui, sans-serif;
  --font-mono: ui-monospace, 'SFMono-Regular', Menlo, Monaco, Consolas, monospace;

  /* ── Animation ── */
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ── Global Reset ── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--edyou-dark);
  color: var(--text-main);
  min-height: 100dvh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Text selection */
::selection {
  background-color: rgba(139, 92, 246, 0.3);
  color: #fff;
}

::-moz-selection {
  background-color: rgba(139, 92, 246, 0.3);
  color: #fff;
}

/* ── Custom Scrollbar ── */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: var(--edyou-darker);
}

::-webkit-scrollbar-thumb {
  background: rgba(139, 92, 246, 0.3);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--edyou-violet);
}

/* ── Base Layout ── */
.app-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 24px 48px;
}

/* ── Mobile Layout & Typography Overrides ── */
@media (max-width: 768px) {
  .app-container {
    padding: 80px 16px 32px;
    /* Smaller padding on mobile */
  }

  h1,
  h2,
  h3,
  h4,
  h5,
  h6 {
    line-height: 1.15;
    /* Tighter line-height for headings on mobile */
    margin-bottom: 0.5em;
    /* Better spacing below headings */
  }

  p {
    line-height: 1.6;
    /* Comfortable reading for paragraphs */
    margin-bottom: 1em;
  }

  /* Improve gap utility for forms and grid components */
  .row {
    margin-left: -8px;
    margin-right: -8px;
  }

  .row>[class*="col-"] {
    padding-left: 8px;
    padding-right: 8px;
  }
}

/* ── Typography ── */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-sans);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #ffffff;
  line-height: 1.25;
}

a {
  color: inherit;
  text-decoration: none;
}

/* ── Gradient Text ── */
.gradient-text {
  background: var(--gradient-violet);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.gradient-text-teal {
  background: var(--gradient-teal);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.gradient-text-hero {
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.gradient-text-accent {
  background: linear-gradient(135deg, var(--edyou-teal), var(--edyou-violet-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Gradient Border Card ── */
.gradient-border {
  position: relative;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--edyou-dark-mid), var(--edyou-dark-mid)) padding-box,
    linear-gradient(135deg, rgba(139, 92, 246, 0.5), rgba(20, 184, 166, 0.5)) border-box;
  border: 1px solid transparent;
}

/* ══════════════════════════════════════════════════
   AMBIENT BACKGROUND SYSTEM
═══════════════════════════════════════════════════*/
.ambient-glow-system {
  position: fixed;
  inset: 0;
  z-index: -10;
  overflow: hidden;
  pointer-events: none;
}

.ambient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(150px);
  opacity: 0.12;
  mix-blend-mode: screen;
}

.orb-indigo {
  background: var(--edyou-violet);
  width: 600px;
  height: 600px;
  top: -150px;
  right: -100px;
  animation: floatOrb 20s infinite alternate ease-in-out;
}

.orb-purple {
  background: var(--edyou-violet-light);
  width: 500px;
  height: 500px;
  bottom: -100px;
  left: -100px;
  animation: floatOrb 28s infinite alternate-reverse ease-in-out;
}

.orb-blue {
  background: var(--edyou-teal);
  width: 450px;
  height: 450px;
  top: 40%;
  left: 35%;
  animation: floatOrb 24s infinite alternate ease-in-out;
  animation-delay: -8s;
  opacity: 0.08;
}

@keyframes floatOrb {
  0% {
    transform: translate(0, 0) scale(1);
  }

  50% {
    transform: translate(40px, 60px) scale(1.08);
  }

  100% {
    transform: translate(-30px, -40px) scale(0.95);
  }
}

/* ══════════════════════════════════════════════════
   NAVBAR
═══════════════════════════════════════════════════*/
.navbar-glass {
  background: rgba(10, 10, 15, 0.8) !important;
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--glass-border);
  transition: var(--transition-smooth);
  padding: 12px 0;
}

.navbar-glass.scrolled {
  background: rgba(10, 10, 15, 0.95) !important;
  border-bottom-color: rgba(139, 92, 246, 0.2);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
}

.navbar-glass .navbar-brand {
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 1.35rem;
  color: #ffffff !important;
  display: flex;
  align-items: center;
  gap: 10px;
  letter-spacing: -0.02em;
}

.navbar-glass .navbar-brand .brand-logo-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--edyou-violet), var(--edyou-teal));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: #fff;
  flex-shrink: 0;
}

.navbar-glass .nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted) !important;
  padding: 8px 14px !important;
  border-radius: 8px;
  transition: var(--transition-smooth);
  letter-spacing: -0.01em;
}

.navbar-glass .nav-link:hover {
  color: #ffffff !important;
  background: rgba(255, 255, 255, 0.05);
}

.navbar-glass .nav-link.active {
  color: var(--edyou-violet-light) !important;
  background: rgba(139, 92, 246, 0.1) !important;
}

/* Mobile navbar collapse */
@media (max-width: 991px) {
  .navbar-collapse {
    background: rgba(10, 10, 15, 0.98) !important;
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 16px !important;
    margin-top: 12px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
  }

  .navbar-nav {
    align-items: flex-start !important;
    gap: 4px;
  }

  .navbar-nav .nav-link {
    width: 100%;
    padding: 10px 14px !important;
    border-radius: 10px;
    margin: 0 !important;
  }

  .navbar-nav .btn-glass-primary,
  .navbar-nav .btn-glass {
    margin-left: 0 !important;
    margin-top: 8px;
    width: 100%;
    justify-content: center;
  }
}

/* ══════════════════════════════════════════════════
   GLASS CARDS
═══════════════════════════════════════════════════*/
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  box-shadow: var(--glass-shadow);
  transition: var(--transition-smooth);
  overflow: hidden;
}

.glass-card:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-mid);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5), 0 0 30px rgba(139, 92, 246, 0.1);
}

.glass-card.glow-violet:hover {
  border-color: rgba(139, 92, 246, 0.4);
  box-shadow: var(--glass-shadow), 0 0 30px rgba(139, 92, 246, 0.25);
}

.glass-card.glow-teal:hover {
  border-color: rgba(20, 184, 166, 0.4);
  box-shadow: var(--glass-shadow), 0 0 30px rgba(20, 184, 166, 0.25);
}

.glass-card.glow-indigo:hover {
  border-color: rgba(139, 92, 246, 0.4);
  box-shadow: var(--glass-shadow), 0 0 25px rgba(139, 92, 246, 0.2);
}

.glass-card.glow-emerald:hover {
  border-color: rgba(20, 184, 166, 0.4);
  box-shadow: var(--glass-shadow), 0 0 25px rgba(20, 184, 166, 0.2);
}

.glass-card.glow-purple:hover {
  border-color: rgba(167, 139, 250, 0.4);
  box-shadow: var(--glass-shadow), 0 0 25px rgba(167, 139, 250, 0.2);
}

.glass-card-header {
  border-bottom: 1px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.02);
  padding: 20px 24px;
}

.glass-card-body {
  padding: 24px;
}

.glass-card-footer {
  border-top: 1px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.01);
  padding: 16px 24px;
}

/* ══════════════════════════════════════════════════
   BUTTONS
═══════════════════════════════════════════════════*/
.btn-glass {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  color: var(--text-main);
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 0.875rem;
  letter-spacing: -0.01em;
  transition: var(--transition-smooth);
  border-radius: 12px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 10px 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  cursor: pointer;
  text-decoration: none;
}

.btn-glass:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--glass-border-mid);
  color: #ffffff;
}

/* Primary – violet gradient */
.btn-glass-primary {
  background: linear-gradient(135deg, var(--edyou-violet), var(--edyou-violet-mid));
  border: 1px solid rgba(139, 92, 246, 0.3);
  color: #ffffff;
  font-weight: 600;
  box-shadow: 0 4px 20px rgba(139, 92, 246, 0.4);
}

.btn-glass-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(139, 92, 246, 0.6);
  color: #ffffff;
  background: linear-gradient(135deg, var(--edyou-violet-light), var(--edyou-violet));
}

/* Secondary – teal gradient */
.btn-glass-teal {
  background: linear-gradient(135deg, var(--edyou-teal), var(--edyou-teal-dark));
  border: 1px solid rgba(20, 184, 166, 0.3);
  color: #ffffff;
  font-weight: 600;
  box-shadow: 0 4px 20px rgba(20, 184, 166, 0.4);
}

.btn-glass-teal:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(20, 184, 166, 0.6);
  color: #ffffff;
}

/* Purple accent */
.btn-glass-purple {
  background: linear-gradient(135deg, var(--edyou-violet-light), var(--edyou-teal));
  border: none;
  color: #ffffff;
  font-weight: 600;
  box-shadow: 0 4px 15px rgba(167, 139, 250, 0.35);
}

.btn-glass-purple:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(167, 139, 250, 0.5);
  color: #ffffff;
}

/* Outline variants */
.btn-glass-outline-indigo {
  background: transparent;
  border: 1px solid rgba(139, 92, 246, 0.4);
  color: var(--edyou-violet-light);
}

.btn-glass-outline-indigo:hover {
  background: rgba(139, 92, 246, 0.12);
  border-color: var(--edyou-violet);
  color: #ffffff;
}

.btn-glass-outline-teal {
  background: transparent;
  border: 1px solid rgba(20, 184, 166, 0.4);
  color: var(--edyou-teal-light);
}

.btn-glass-outline-teal:hover {
  background: rgba(20, 184, 166, 0.12);
  border-color: var(--edyou-teal);
  color: #ffffff;
}

/* Danger */
.btn-glass-danger {
  background: rgba(239, 68, 68, 0.08);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #f87171;
}

.btn-glass-danger:hover {
  background: rgba(239, 68, 68, 0.2);
  border-color: #f87171;
  color: #ffffff;
}

/* ══════════════════════════════════════════════════
   FORMS
═══════════════════════════════════════════════════*/
.form-glass-control {
  background: rgba(255, 255, 255, 0.04) !important;
  border: 1px solid var(--glass-border) !important;

  color: var(--text-main) !important;
  padding: 12px 16px !important;
  font-family: var(--font-sans) !important;
  font-size: 0.9rem !important;
  transition: var(--transition-smooth) !important;
}

.form-glass-control:focus {
  background: rgba(255, 255, 255, 0.07) !important;
  border-color: var(--glass-border-focus) !important;
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.15) !important;
  color: #ffffff !important;
  outline: none !important;
}

.form-glass-control::placeholder {
  color: var(--text-dimmed);
}

.form-glass-select {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%2394a3b8' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e") !important;
  background-size: 12px 12px !important;
  background-position: right 16px center !important;
  background-repeat: no-repeat !important;
  appearance: none;
}

.form-glass-select option {
  background: var(--edyou-dark-mid);
  color: var(--text-main);
}

/* ══════════════════════════════════════════════════
   BADGES
═══════════════════════════════════════════════════*/
.badge-glass {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--glass-border);
  color: var(--text-muted);
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 12px;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.badge-glass-indigo {
  background: rgba(139, 92, 246, 0.12);
  border-color: rgba(139, 92, 246, 0.3);
  color: var(--edyou-violet-light);
}

.badge-glass-teal {
  background: rgba(20, 184, 166, 0.12);
  border-color: rgba(20, 184, 166, 0.3);
  color: var(--edyou-teal-light);
}

.badge-glass-emerald {
  background: rgba(34, 197, 94, 0.12);
  border-color: rgba(34, 197, 94, 0.3);
  color: #4ade80;
}

.badge-glass-rose {
  background: rgba(239, 68, 68, 0.12);
  border-color: rgba(239, 68, 68, 0.3);
  color: #f87171;
}

.badge-glass-amber {
  background: rgba(251, 191, 36, 0.12);
  border-color: rgba(251, 191, 36, 0.3);
  color: #fbbf24;
}

/* ══════════════════════════════════════════════════
   TOP LOADING BAR
═══════════════════════════════════════════════════*/
.top-loading-bar {
  height: 2px;
  width: 100%;
  position: fixed;
  top: 0;
  left: 0;
  background: linear-gradient(to right, var(--edyou-violet), var(--edyou-teal-light), var(--edyou-teal));
  z-index: 9999;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

/* ══════════════════════════════════════════════════
   ANIMATIONS
═══════════════════════════════════════════════════*/
.fade-in-up {
  animation: fadeInUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

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

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-in {
  animation: fadeIn 0.8s ease-out forwards;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

.animate-slide-up {
  animation: slideUp 0.6s ease-out forwards;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.floating-effect,
.animate-float {
  animation: floating 6s ease-in-out infinite;
}

@keyframes floating {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-16px);
  }
}

.animate-pulse-glow {
  animation: pulseGlow 2s ease-in-out infinite;
}

@keyframes pulseGlow {

  0%,
  100% {
    opacity: 0.5;
    transform: scale(1);
  }

  50% {
    opacity: 1;
    transform: scale(1.08);
  }
}

.scale-in {
  animation: scaleInModal 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

@keyframes scaleInModal {
  from {
    transform: scale(0.85);
    opacity: 0;
  }

  to {
    transform: scale(1);
    opacity: 1;
  }
}

/* ══════════════════════════════════════════════════
   SIDEBAR / OFFCANVAS
═══════════════════════════════════════════════════*/
.sidebar-glass {
  background: rgba(5, 5, 8, 0.96) !important;
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-left: 1px solid var(--glass-border) !important;
  width: 320px !important;
}

.sidebar-link {
  display: flex;
  align-items: center;
  padding: 11px 16px;
  color: var(--text-muted) !important;
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
  border-radius: 10px;
  border: 1px solid transparent;
  transition: var(--transition-smooth);
  gap: 10px;
}

.sidebar-link:hover {
  color: #ffffff !important;
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--glass-border);
}

.sidebar-link.active {
  color: var(--edyou-violet-light) !important;
  background: rgba(139, 92, 246, 0.12) !important;
  border-color: rgba(139, 92, 246, 0.25);
}

/* Gamification Profile Card */
.sidebar-game-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  padding: 18px;
  margin-bottom: 20px;
}

.sidebar-game-progress {
  height: 5px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 9999px;
  overflow: hidden;
  margin-top: 10px;
}

.sidebar-game-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--edyou-violet), var(--edyou-teal));
  width: 0%;
  border-radius: 9999px;
  transition: width 0.5s ease;
}

.sidebar-badges-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 12px;
}

.badge-icon-item {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  border: 1px solid transparent;
  transition: var(--transition-smooth);
}

.badge-icon-item.locked {
  background: rgba(255, 255, 255, 0.03);
  border-color: rgba(255, 255, 255, 0.06);
  color: var(--text-dimmed);
  opacity: 0.3;
}

.badge-icon-item.unlocked {
  background: rgba(139, 92, 246, 0.12);
  border-color: rgba(139, 92, 246, 0.35);
  color: var(--edyou-violet-light);
  box-shadow: 0 0 12px rgba(139, 92, 246, 0.3);
}

/* ══════════════════════════════════════════════════
   XP FLOATER & PARTICLES
═══════════════════════════════════════════════════*/
.xp-floater {
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.15) 0%, rgba(20, 184, 166, 0.15) 100%);
  background-color: rgba(15, 23, 42, 0.95);
  border: 1px solid rgba(139, 92, 246, 0.4);
  padding: 14px 24px;
  border-radius: 16px;
  box-shadow: 0 8px 32px rgba(139, 92, 246, 0.25);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  animation: slideInRightFadeOut 2.8s cubic-bezier(0.25, 1, 0.5, 1) forwards;
  pointer-events: none;
  font-size: 0.95rem;
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 12px;
}

.xp-floater i {
  color: #f59e0b; /* Golden star color */
  font-size: 1.2rem;
}

@keyframes slideInRightFadeOut {
  0% { transform: translateX(120%); opacity: 0; }
  15% { transform: translateX(0); opacity: 1; }
  85% { transform: translateX(0); opacity: 1; }
  100% { transform: translateY(-20px); opacity: 0; }
}

@keyframes floatUpFade {
  0% {
    transform: translateY(20px);
    opacity: 0;
  }

  10% {
    transform: translateY(0);
    opacity: 1;
  }

  90% {
    transform: translateY(-35px);
    opacity: 1;
  }

  100% {
    transform: translateY(-55px);
    opacity: 0;
  }
}

.confetti-particle {
  position: fixed;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  pointer-events: none;
  z-index: 10001;
  animation: explodeParticle 1.2s cubic-bezier(0.1, 0.8, 0.3, 1) forwards;
}

@keyframes explodeParticle {
  0% {
    transform: translate(0, 0) scale(1.5);
    opacity: 1;
  }

  100% {
    transform: translate(var(--tx), var(--ty)) scale(0.3);
    opacity: 0;
  }
}

/* ══════════════════════════════════════════════════
   QUIZ MODULE
═══════════════════════════════════════════════════*/
.quiz-option-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 16px 20px;
  margin-bottom: 10px;
  cursor: pointer;
  transition: var(--transition-smooth);
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 0.9rem;
}

.quiz-option-card:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(139, 92, 246, 0.3);
  transform: translateX(4px);
}

.quiz-option-card.selected {
  background: rgba(139, 92, 246, 0.12);
  border-color: var(--edyou-violet);
  box-shadow: 0 0 15px rgba(139, 92, 246, 0.2);
}

.quiz-option-card.correct {
  background: rgba(20, 184, 166, 0.12);
  border-color: var(--edyou-teal);
  color: var(--edyou-teal-light);
  box-shadow: 0 0 15px rgba(20, 184, 166, 0.2);
}

.quiz-option-card.incorrect {
  background: rgba(239, 68, 68, 0.1);
  border-color: rgba(239, 68, 68, 0.4);
  color: #f87171;
  box-shadow: 0 0 15px rgba(239, 68, 68, 0.15);
}

/* ══════════════════════════════════════════════════
   FLASHCARD MODULE
═══════════════════════════════════════════════════*/
.srs-deck-container {
  perspective: 1200px;
}

.srs-flip-card {
  position: relative;
  min-height: 280px;
  width: 100%;
  transform-style: preserve-3d;
  transition: transform 0.65s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
}

.srs-flip-card.is-flipped {
  transform: rotateY(180deg);
}

.srs-card-front,
.srs-card-back {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  backface-visibility: hidden;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 32px;
  border-radius: 20px;
  border: 1px solid var(--glass-border);
}

.srs-card-front {
  background: linear-gradient(135deg, rgba(18, 18, 26, 0.9), rgba(10, 10, 15, 0.9));
}

.srs-card-back {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.08), rgba(20, 184, 166, 0.08));
  transform: rotateY(180deg);
  border-color: rgba(20, 184, 166, 0.25);
}

/* ══════════════════════════════════════════════════
   LECTURES WORKSPACE
═══════════════════════════════════════════════════*/
.workspace-grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 24px;
}

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

.sidebar-ai-chat {
  display: flex;
  flex-direction: column;
  height: 600px;
}

.chat-history {
  flex-grow: 1;
  overflow-y: auto;
  padding: 16px;
  background: rgba(5, 5, 8, 0.5);
  border-radius: 12px;
  border: 1px solid var(--glass-border);
  margin-bottom: 12px;
}

.chat-message-bubble {
  max-width: 85%;
  margin-bottom: 12px;
  padding: 10px 14px;
  border-radius: 12px;
  font-size: 0.9rem;
  line-height: 1.5;
}

.chat-message-bubble.user {
  background: rgba(139, 92, 246, 0.15);
  border: 1px solid rgba(139, 92, 246, 0.25);
  margin-left: auto;
  border-bottom-right-radius: 4px;
}

.chat-message-bubble.bot {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--glass-border);
  margin-right: auto;
  border-bottom-left-radius: 4px;
}

.subject-folder-item {
  border-left: 3px solid transparent;
  transition: var(--transition-smooth);
  padding-left: 12px;
}

.subject-folder-item:hover {
  border-left-color: var(--edyou-violet);
  background: rgba(255, 255, 255, 0.02);
}

.subject-folder-item.active {
  border-left-color: var(--edyou-teal);
  background: rgba(20, 184, 166, 0.06);
}

/* ══════════════════════════════════════════════════
   SECTION HELPERS
═══════════════════════════════════════════════════*/
.section-gap {
  padding: 96px 0;
}

.section-padding {
  padding: 5rem 1.5rem;
}

@media (min-width: 1024px) {
  .section-padding {
    padding: 7rem 4rem;
  }
}

/* ══════════════════════════════════════════════════
   RESPONSIVE TYPOGRAPHY
═══════════════════════════════════════════════════*/
@media (max-width: 768px) {
  h1 {
    font-size: 2rem !important;
  }

  h2 {
    font-size: 1.6rem !important;
  }

  h3 {
    font-size: 1.3rem !important;
  }

  .display-3 {
    font-size: 2.2rem !important;
  }

  .display-4 {
    font-size: 1.8rem !important;
  }

  .display-5 {
    font-size: 1.6rem !important;
  }

  .lead {
    font-size: 1rem !important;
  }

  .app-container {
    padding: 80px 16px 32px !important;
  }

  .glass-card-body {
    padding: 16px !important;
  }

  .glass-card-header {
    padding: 14px 16px !important;
  }

  .section-gap {
    padding: 64px 0 !important;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 1.7rem !important;
  }

  .display-3,
  .display-4,
  .display-5 {
    font-size: 1.5rem !important;
  }

  .app-container {
    padding: 76px 12px 24px !important;
  }

  .btn-glass {
    padding: 9px 18px;
    font-size: 0.85rem;
  }

  .section-gap {
    padding: 48px 0 !important;
  }
}

/* ══════════════════════════════════════════════════
   TILT 3D EFFECT (interactive cards)
═══════════════════════════════════════════════════*/
.tilt-3d {
  transform-style: preserve-3d;
  transform: perspective(800px) rotateX(0deg) rotateY(0deg);
  transition: transform 0.1s ease, box-shadow 0.3s ease;
  will-change: transform;
}

/* ══════════════════════════════════════════════════
   FEATURE & STAT CARDS
═══════════════════════════════════════════════════*/
.feature-grid-card {
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 32px;
  transition: var(--transition-smooth);
  height: 100%;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
}

.feature-grid-card:hover {
  transform: translateY(-6px);
  border-color: rgba(139, 92, 246, 0.3);
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.4), 0 0 40px rgba(139, 92, 246, 0.12);
}

/* ══════════════════════════════════════════════════
   UTILITY COLORS (for FA icons and text)
═══════════════════════════════════════════════════*/
.text-primary-indigo {
  color: var(--edyou-violet) !important;
}

.text-secondary-blue {
  color: var(--edyou-teal) !important;
}

.text-violet-light {
  color: var(--edyou-violet-light) !important;
}

.text-teal-light {
  color: var(--edyou-teal-light) !important;
}

.text-main {
  color: var(--text-main) !important;
}

.text-muted-dim {
  color: var(--text-muted) !important;
}

/* ══════════════════════════════════════════════════
   FOOTER
═══════════════════════════════════════════════════*/
.footer-glass {
  background: var(--edyou-darker);
  border-top: 1px solid var(--glass-border);
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-left: 20px;
  transition: var(--transition-smooth);
}

.footer-links a:hover {
  color: var(--edyou-violet-light);
}

/* ==========================================================================
   Flash Messages Global System
   ========================================================================== */
.flash-messages {
  position: fixed;
  top: 80px;
  left: 50%;
  transform: translateX(-50%);
  width: fit-content;
  max-width: 400px;
  z-index: 9999;
  pointer-events: none;
}

.flash-messages .alert {
  padding: 12px 20px;
  margin-bottom: 10px;
  border-radius: 12px;
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: white;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  animation: slideDown 0.4s ease-out, fadeOut 0.5s ease-out 5s forwards;
  pointer-events: auto;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.flash-messages .alert.bg-success {
  background: rgba(16, 185, 129, 0.1) !important;
  border-color: rgba(16, 185, 129, 0.3) !important;
  color: #34d399 !important;
}

.flash-messages .alert.bg-danger {
  background: rgba(239, 68, 68, 0.1) !important;
  border-color: rgba(239, 68, 68, 0.3) !important;
  color: #f87171 !important;
}

.flash-messages .alert.bg-warning {
  background: rgba(245, 158, 11, 0.1) !important;
  border-color: rgba(245, 158, 11, 0.3) !important;
  color: #fbbf24 !important;
}

@keyframes slideDown {
  from {
    transform: translateY(-25px);
    opacity: 0;
  }

  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes fadeOut {
  from {
    opacity: 1;
    transform: translateY(0);
  }

  to {
    opacity: 0;
    transform: translateY(-10px);
    visibility: hidden;
  }
}