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

:root {
  /* Dark Theme Colors - Less Contrasting for Eye Comfort */
  --bg-primary: #121418;
  --bg-secondary: #1a1d22;
  --bg-tertiary: #22262d;
  --text-primary: #e8e8e8;
  --text-secondary: #a8acb3;
  --text-tertiary: #787d85;
  --accent-primary: #6b8afd;
  --accent-secondary: #5a6acf;
  --accent-tertiary: #4b5aaf;
  --border-color: #32363d;
  --shadow-color: rgba(0, 0, 0, 0.2);
  --danger: #e57373;
  --warning: #ffb74d;
  --success: #81c784;
  --info: #64b5f6;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-xxl: 3rem;

  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;
  --radius-pill: 9999px;

  /* Shadows */
  --shadow-sm: 0 2px 4px var(--shadow-color);
  --shadow-md: 0 4px 8px var(--shadow-color);
  --shadow-lg: 0 8px 16px var(--shadow-color);
  --shadow-xl: 0 12px 24px var(--shadow-color);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", sans-serif;
  font-optical-sizing: auto;
  font-weight: 400;
  font-style: normal;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
  background-image: 
    radial-gradient(circle at 20% 20%, rgba(107, 138, 253, 0.02), transparent 25%),
    radial-gradient(circle at 80% 80%, rgba(90, 106, 207, 0.02), transparent 25%);
  background-attachment: fixed;
}

mjx-container {
    display: inline !important;
}

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

a:hover, a:focus {
  color: var(--text-primary);
  outline: none;
}

button, .btn {
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.95rem;
  padding: 0.5rem 1rem;
  transition: var(--transition-fast);
}

button:hover, .btn:hover {
  background-color: var(--bg-secondary);
  border-color: var(--accent-primary);
}

button.btn-primary, .btn-primary {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  border: none;
  color: white;
  box-shadow: 0 2px 6px rgba(107, 138, 253, 0.2);
}

button.btn-primary:hover, .btn-primary:hover {
  opacity: 0.9;
  box-shadow: 0 3px 10px rgba(107, 138, 253, 0.3);
}

input, textarea, select {
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  padding: 0.75rem;
  transition: var(--transition-fast);
  width: 100%;
}

input:focus, textarea:focus, select:focus {
  border-color: var(--accent-primary);
  outline: none;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 1rem;
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.5rem;
}

h4 {
  font-size: 1.25rem;
}

h5 {
  font-size: 1.1rem;
}

h6 {
  font-size: 1rem;
}

p {
  margin-bottom: 1rem;
}

/* Additional styles for improved reading comfort */
p, li, .question-text, .option-text, .explanation-content {
  font-size: 1rem;
  line-height: 1.6;
  letter-spacing: 0.01em;
  color: var(--text-primary);
  text-rendering: optimizeLegibility;
}

/* Make code blocks more readable */
pre, code {
  background-color: rgba(0, 0, 0, 0.15);
  border-radius: 4px;
  font-family: 'Consolas', 'Monaco', monospace;
  font-size: 0.95em;
  padding: 0.2em 0.4em;
}

pre {
  padding: 1em;
  overflow-x: auto;
  line-height: 1.5;
}

/* Improve contrast for links while keeping them visually distinct */
a:not(.btn):not(.nav-link) {
  color: var(--accent-primary);
  text-decoration: none;
  transition: color 0.2s ease, border-bottom 0.2s ease;
  border-bottom: 1px solid transparent;
}

a:not(.btn):not(.nav-link):hover {
  color: var(--accent-secondary);
  border-bottom-color: var(--accent-secondary);
}

/* Card Design */
.card {
  background-color: var(--bg-secondary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: var(--transition-normal);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--border-color);
}

.card-body {
  padding: var(--spacing-lg);
}

.card-footer {
  padding: var(--spacing-lg);
  border-top: 1px solid var(--border-color);
}

/* Badges */
.badge {
  background-color: var(--bg-tertiary);
  border-radius: var(--radius-pill);
  color: var(--text-primary);
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.75rem;
  text-transform: uppercase;
}

.badge-primary {
  background-color: var(--accent-primary);
  color: white;
}

.badge-success {
  background-color: var(--success);
  color: white;
}

.badge-warning {
  background-color: var(--warning);
  color: black;
}

.badge-danger {
  background-color: var(--danger);
  color: white;
}

/* Utility Classes */
.container {
  margin: 0 auto;
  max-width: 1280px;
  padding: 0 var(--spacing-lg);
}

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

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.mx-auto { margin-left: auto; margin-right: auto; }

.d-flex { display: flex; }
.justify-content-between { justify-content: space-between; }
.justify-content-center { justify-content: center; }
.align-items-center { align-items: center; }

.text-primary { color: var(--accent-primary); }
.text-secondary { color: var(--text-secondary); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }
.text-success { color: var(--success); }

/* Navbar Styles */
.navbar {
  background-color: rgba(18, 20, 24, 0.8); /* --bg-primary with alpha */
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 1000;
  height: 60px;
  display: flex;
  align-items: center;
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.navbar-left {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.navbar-brand {
  display: flex;
  align-items: center;
  position: relative;
}

.logo {
  display: flex;
  align-items: center;
  font-weight: 700;
  font-size: 1.5rem;
  position: relative;
  text-decoration: none;
  color: var(--text-primary);
}

.logo-text {
  background: linear-gradient(to right, var(--accent-primary), var(--accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: transparent;
}

.beta-badge {
  position: absolute;
  top: -6px;
  right: -33px;
  font-size: 0.65rem;
  background-color: var(--accent-secondary);
  color: white;
  padding: 2px 5px;
  border-radius: 4px;
  text-transform: uppercase;
  font-weight: 600;
}

.navbar-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
}

.nav-link i {
  margin-right: 0.25rem;
}

.nav-link:hover {
  color: var(--text-primary);
  background-color: var(--bg-secondary);
}

.nav-link.active {
  color: var(--accent-primary);
  background-color: var(--bg-secondary);
}

.navbar-center {
  flex: 1;
  display: flex;
  justify-content: center;
  position: relative;
}

.search-bar {
  width: 100%;
  max-width: 500px;
  position: relative;
}

.search-bar input {
  width: 100%;
  background-color: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 0.5rem 1rem 0.5rem 2.5rem;
  color: var(--text-primary);
}

.search-bar i {
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.navbar-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.user-dropdown {
  position: relative;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  border: 2px solid var(--bg-primary);
}

.user-dropdown-content {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 0.5rem;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  width: 200px;
  z-index: 1000;
  display: none;
}

.user-dropdown-content.active {
  display: block;
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  color: var(--text-primary);
  text-decoration: none;
  transition: background-color 0.2s;
}

.dropdown-item:hover {
  background-color: var(--bg-tertiary);
}

.dropdown-divider {
  height: 1px;
  background-color: var(--border-color);
  margin: 0.25rem 0;
}

.text-danger {
  color: var(--danger);
}

/* === XP CONTAINER IN NAVBAR === */
.xp-container {
    display: flex;
    align-items: center;
    gap: 1rem;
    min-width: 250px;
}

.xp-container.mobile {
    min-width: unset;
    width: 100%;
    padding: 0.75rem;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-md);
}

.xp-level-progress {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.xp-ring {
    transform: rotate(-90deg);
}

.xp-ring-bg {
    stroke: rgba(107, 138, 253, 0.15);
}

.xp-ring-fg {
    stroke: var(--accent-primary);
    stroke-linecap: round;
    transition: stroke-dashoffset 0.5s ease-out;
}

.xp-level-text {
    position: absolute;
    text-align: center;
    color: var(--text-primary);
    line-height: 1;
}

.level-label {
    font-size: 0.6rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.level-number {
    font-size: 1.2rem;
    font-weight: 700;
}

.xp-details {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    flex: 1;
}

.xp-total {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-primary);
}

.xp-total i {
    color: #facc15; /* Yellow star */
    font-size: 0.7rem;
}

.xp-bar-container {
    width: 100%;
}

.xp-bar {
    height: 6px;
    background-color: var(--bg-secondary);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 0.1rem;
}

.xp-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    border-radius: 3px;
    transition: width 0.5s ease-out;
}

.xp-progress-text {
    font-size: 0.65rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.navbar-toggle {
  display: none;
  background: none;
  border: none;
  width: 40px;
  height: 40px;
  position: relative;
  cursor: pointer;
  z-index: 100;
}

.navbar-toggle-icon,
.navbar-toggle-icon::before,
.navbar-toggle-icon::after {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--text-primary);
  position: absolute;
  transition: all 0.3s;
}

.navbar-toggle-icon {
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.navbar-toggle-icon::before,
.navbar-toggle-icon::after {
  content: '';
  left: 0;
}

.navbar-toggle-icon::before {
  top: -8px;
}

.navbar-toggle-icon::after {
  top: 8px;
}

.navbar-toggle.active .navbar-toggle-icon {
  background-color: transparent;
}

.navbar-toggle.active .navbar-toggle-icon::before {
  top: 0;
  transform: rotate(45deg);
}

.navbar-toggle.active .navbar-toggle-icon::after {
  top: 0;
  transform: rotate(-45deg);
}

.navbar-menu {
    display: none;
}

@media (max-width: 992px) {
  .desktop-only {
    display: none !important;
  }

  .navbar-toggle {
    display: block;
    background: none;
    border: none;
    padding: 0.5rem;
    margin-right: 1rem;
    cursor: pointer;
  }
  
  .navbar-menu {
    display: flex;
    position: fixed;
    top: 0;
    left: -100%;
    width: 80%;
    max-width: 300px;
    height: 100vh;
    background-color: var(--bg-secondary);
    flex-direction: column;
    align-items: stretch;
    justify-content: space-between;
    padding: 1.5rem;
    transition: left 0.3s ease;
    overflow-y: auto;
    z-index: 90;
    border-right: 1px solid var(--border-color);
  }
  
  .navbar-menu.active {
    left: 0;
    box-shadow: 5px 0 25px rgba(0, 0, 0, 0.3);
  }

  .navbar-menu-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
  }

  .navbar-menu-header .user-info {
    display: flex;
    flex-direction: column;
  }

  .navbar-menu-header .user-info .username {
    font-weight: 600;
    font-size: 1rem;
  }

  .navbar-menu-header .user-info .email {
    font-size: 0.8rem;
    color: var(--text-secondary);
  }
  
  .navbar-menu-links {
    display: flex;
    flex-direction: column;
    width: 100%;
    gap: 0.5rem;
    flex-grow: 1;
    padding-top: 1.5rem;
  }
  
  .navbar-menu .nav-link {
    width: 100%;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
  }

  .navbar-menu .nav-link:hover {
    background-color: var(--bg-tertiary);
  }
  
  .navbar-menu-footer {
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 1rem;
  }

  .navbar-menu-footer .dropdown-item {
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
  }

  .navbar-menu-footer .dropdown-item:hover {
    background-color: var(--bg-tertiary);
  }
  
  .navbar .container {
    padding: 0 1rem;
    justify-content: flex-start;
  }
  
  .navbar-left {
    gap: 1rem;
  }
  
  .navbar-center {
    display: none;
  }
  
  .navbar-links {
    display: none;
  }
}

@media (max-width: 576px) {
  .navbar .container {
    padding: 0 0.75rem;
  }
  
  .navbar-right span {
    display: none;
  }
  
  .user-dropdown i.fa-chevron-down {
    display: none;
  }
}

/* Home Page Styles */
.hero-section {
  padding: 4rem 0;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  letter-spacing: -1px;
}

.hero-subtitle {
  font-size: 1.5rem;
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: 2rem;
  max-width: 600px;
}

.gradient-text {
  background: linear-gradient(to right, var(--accent-primary), var(--accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: transparent;
}

.hero-cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: 2rem;
}

.auth-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
}

.auth-buttons .login-btn {
  padding: 0.75rem 1.5rem;
  font-weight: 500;
  min-width: 200px;
}

.content-section {
  padding: 4rem 0;
  border-top: 1px solid var(--border-color);
}

.section-heading {
  font-size: 2rem;
  margin-bottom: 3rem;
  font-weight: 600;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.feature-card {
  background-color: var(--bg-secondary);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.feature-icon {
  font-size: 2.5rem;
  color: var(--accent-primary);
  margin-bottom: 1.5rem;
}

.feature-card h3 {
  font-size: 1.3rem;
  margin-bottom: 1rem;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.6;
}

.about-content {
  max-width: 800px;
  margin: 0 auto;
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-subtitle {
    font-size: 1.2rem;
  }
  
  .auth-buttons {
    flex-direction: column;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .section-heading {
    font-size: 1.8rem;
  }
}

/* Animation */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.fade-in {
  animation: fadeIn var(--transition-normal);
}

/* Override any remaining pink/purple gradients */
.gradient-bg {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary)) !important;
}

/* Make sure progress bars and other accent elements use the new color scheme */
progress, meter,
.progress-bar, .meter {
  background-color: var(--accent-primary);
}

/* Ensure selection highlight uses the new accent color */
::selection {
  background-color: var(--accent-primary);
  color: white;
}

/* Update focus styles for better accessibility */
:focus {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
}

.muted {
  color: #a8acb3;
  font-weight: 400;
}

/* Discord Invitation Modal */
.discord-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.7);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
}

.discord-modal-content {
  background-color: var(--bg-secondary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  width: 90%;
  max-width: 500px;
  box-shadow: var(--shadow-xl);
  position: relative;
  animation: modalFadeIn 0.3s ease;
}

@keyframes modalFadeIn {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.discord-close {
  position: absolute;
  top: 15px;
  right: 20px;
  font-size: 1.5rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition-fast);
}

.discord-close:hover {
  color: var(--text-primary);
}

.discord-modal-header {
  display: flex;
  align-items: center;
  padding: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  gap: 1rem;
}

.discord-modal-header i {
  font-size: 2rem;
  color: #5865F2; /* Discord blue */
}

.discord-modal-header h3 {
  margin-bottom: 0;
}

.discord-modal-body {
  padding: 1.5rem;
}

.discord-benefits {
  list-style: none;
  padding: 0;
  margin: 1rem 0;
}

.discord-benefits li {
  display: flex;
  align-items: center;
  margin-bottom: 0.75rem;
  gap: 0.75rem;
}

.discord-benefits li i {
  color: var(--success);
  font-size: 1rem;
}

.discord-modal-footer {
  padding: 1rem 1.5rem 1.5rem;
  display: flex;
  justify-content: center;
}

.discord-modal-footer .btn {
  padding: 0.75rem 2rem;
  font-weight: 600;
  background-color: #5865F2; /* Discord blue */
  border: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition-fast);
}

.discord-modal-footer .btn:hover {
  background-color: #4752c4;
  transform: translateY(-2px);
}

.discord-modal-footer .btn i {
  font-size: 1.2rem;
}

@media (max-width: 576px) {
  .discord-modal-content {
    width: 95%;
    max-width: none;
  }
  
  .discord-modal-header {
    padding: 1rem;
  }
  
  .discord-modal-body, 
  .discord-modal-footer {
    padding: 1rem;
  }
}