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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans",
    "Droid Sans", "Helvetica Neue", sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background: #f8fafc;
}


.loading-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.loading-content {
  text-align: center;
  color: white;
}

.spinner {
  font-size: 3rem;
  margin-bottom: 1rem;
  animation: pulse 2s infinite;
}

.loading-content h2 {
  margin: 1rem 0 0.5rem 0;
  font-size: 1.5rem;
  font-weight: 600;
}

.loading-content p {
  margin: 0;
  opacity: 0.8;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.7;
    transform: scale(1.1);
  }
}

html, body {
  height: 100%;
  margin: 0;
  padding: 0;
}

#auth-container.auth-container {
  position: fixed !important;
  top: 0 !important;
  left: 0 !important;
  right: 0 !important;
  bottom: 0 !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  padding: 0 !important;
  background: linear-gradient(to right, #74ebd5, #acb6e5) !important;

  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-sizing: border-box;
  z-index: 1000;
}


.auth-card {
  width: 100%;
  max-width: 400px;
  margin: 0 1rem;  
  background: white;
  border-radius: 1rem;
  box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1),
              0 10px 10px -5px rgba(0,0,0,0.04);
  padding: 2rem;

  box-sizing: border-box;
}
.google-signin-button {
  background: #4285F4;
  color: #fff;
  padding: 0.75rem;
  width: 100%;
  border: none;
  border-radius: 0.5rem;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: background-color 0.2s;
}

.google-signin-button:hover:not(:disabled) {
  background: #357ae8;
}



#auth-container[style] {
  padding: 0 !important;
}


.auth-header {
  text-align: center;
  margin-bottom: 2rem;
}

.auth-tabs {
  display: flex;
  background: #f3f4f6;
  border-radius: 0.5rem;
  padding: 0.25rem;
  margin-bottom: 2rem;
}

.tab-button {
  flex: 1;
  padding: 0.75rem;
  border: none;
  background: transparent;
  border-radius: 0.375rem;
  font-weight: 500;
  transition: all 0.2s;
  cursor: pointer;
}

.tab-button.active {
  background: white;
  color: #3b82f6;
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-weight: 500;
  color: #374151;
}

.form-group input {
  padding: 0.75rem;
  border: 1px solid #d1d5db;
  border-radius: 0.5rem;
  font-size: 1rem;
  transition: border-color 0.2s;
}

.form-group input:focus {
  outline: none;
  border-color: #3b82f6;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.error-message {
  background: #fef2f2;
  color: #dc2626;
  padding: 0.75rem;
  border-radius: 0.5rem;
  border: 1px solid #fecaca;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.submit-button {
  background: #3b82f6;
  color: white;
  padding: 0.75rem;
  border: none;
  border-radius: 0.5rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.submit-button:hover:not(:disabled) {
  background: #2563eb;
}

.submit-button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}


.dashboard {
  min-height: 100vh;
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.dashboard-header {
  background: white;
  border-bottom: 1px solid #e5e7eb;
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
}

.header-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.header-title {
  font-size: 1.25rem;
  font-weight: bold;
  color: #1f2937;
  margin: 0;
}

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

.user-info {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: #6b7280;
  font-size: 0.875rem;
}

.logout-button {
  background: #f3f4f6;
  color: #374151;
  border: 1px solid #d1d5db;
  padding: 0.5rem 1rem;
  border-radius: 0.375rem;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logout-button:hover {
  background: #e5e7eb;
}

.mobile-nav {
  display: none;
  background: white;
  border-bottom: 1px solid #e5e7eb;
  padding: 0.5rem;
}

.nav-button {
  flex: 1;
  padding: 0.75rem;
  border: none;
  background: transparent;
  border-radius: 0.375rem;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.75rem;
}

.nav-button.active {
  background: #3b82f6;
  color: white;
}

.dashboard-main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 2rem;
}

.question-section {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.history-section,
.leaderboard-section {
  display: block;
}


.question-form-card {
  background: white;
  border-radius: 1rem;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  overflow: hidden;
}

.card-header {
  background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
  color: white;
  padding: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.card-header h2 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 600;
}

.card-content {
  padding: 1.5rem;
}

.question-textarea {
  width: 100%;
  padding: 1rem;
  border: 2px solid #e5e7eb;
  border-radius: 0.75rem;
  font-size: 1rem;
  resize: vertical;
  min-height: 120px;
  transition: border-color 0.2s;
  font-family: inherit;
}

.question-textarea:focus {
  outline: none;
  border-color: #3b82f6;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.submit-question-button {
  width: 100%;
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: white;
  border: none;
  padding: 1rem;
  border-radius: 0.75rem;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.submit-question-button:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.submit-question-button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}


.history-card {
  background: white;
  border-radius: 1rem;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  height: fit-content;
}

.history-card .card-header {
  background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
  color: white;
  padding: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.history-card .card-header h2 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 600;
  flex: 1;
}

.question-count {
  background: rgba(255, 255, 255, 0.2);
  padding: 0.25rem 0.75rem;
  border-radius: 1rem;
  font-size: 0.875rem;
  font-weight: 600;
}

.history-card .card-content {
  padding: 1.5rem;
  max-height: 600px;
  overflow-y: auto;
}

.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: #6b7280;
}

.empty-state i {
  font-size: 3rem;
  margin-bottom: 1rem;
  opacity: 0.5;
}

.empty-state p {
  margin: 0.5rem 0;
  font-weight: 500;
}

.empty-state small {
  font-size: 0.875rem;
}

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

.question-item {
  border: 1px solid #e5e7eb;
  border-radius: 0.75rem;
  padding: 1rem;
  transition: all 0.2s;
}

.question-item:hover {
  border-color: #d1d5db;
  box-shadow: 0 2px 4px -1px rgba(0, 0, 0, 0.1);
}

.question-content {
  margin-bottom: 0.75rem;
}

.question-text {
  margin-bottom: 0.75rem;
  color: #1f2937;
  font-weight: 500;
}

.answer-text {
  color: #4b5563;
  line-height: 1.6;
  font-size: 0.9rem;
}

.question-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: #9ca3af;
  font-size: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid #f3f4f6;
}


.leaderboard-card {
  background: white;
  border-radius: 1rem;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  height: fit-content;
}

.leaderboard-card .card-header {
  background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
  color: white;
  padding: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.leaderboard-card .card-header h2 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 600;
  flex: 1;
}

.user-count {
  background: rgba(255, 255, 255, 0.2);
  padding: 0.25rem 0.75rem;
  border-radius: 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.leaderboard-card .card-content {
  padding: 1.5rem;
  max-height: 600px;
  overflow-y: auto;
}

.users-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.user-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  border-radius: 0.75rem;
  border: 1px solid #e5e7eb;
  transition: all 0.2s;
}

.user-item:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.rank-gold {
  background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
  border-color: #f59e0b;
}

.rank-silver {
  background: linear-gradient(135deg, #f3f4f6 0%, #e5e7eb 100%);
  border-color: #9ca3af;
}

.rank-bronze {
  background: linear-gradient(135deg, #fed7aa 0%, #fdba74 100%);
  border-color: #ea580c;
}

.rank-default {
  background: #f9fafb;
}

.user-rank {
  min-width: 2.5rem;
  text-align: center;
}

.rank-icon {
  font-size: 1.25rem;
  font-weight: bold;
}

.user-info {
  flex: 1;
}

.user-name {
  font-weight: 600;
  color: #1f2937;
  margin-bottom: 0.25rem;
}

.user-activity {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: #6b7280;
  font-size: 0.75rem;
}

.user-stats {
  text-align: right;
}

.questions-badge {
  background: #3b82f6;
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: 1rem;
  font-size: 0.75rem;
  font-weight: 600;
}

.rank-gold .questions-badge {
  background: #d97706;
}

.rank-silver .questions-badge {
  background: #6b7280;
}

.rank-bronze .questions-badge {
  background: #ea580c;
}


.text-4xl { font-size: 2.25rem; }
.text-3xl { font-size: 1.875rem; }
.text-2xl { font-size: 1.5rem; }
.text-blue-600 { color: #2563eb; }
.text-gray-900 { color: #111827; }
.text-gray-600 { color: #4b5563; }
.font-bold { font-weight: 700; }
.mb-4 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mr-2 { margin-right: 0.5rem; }

.card-content::-webkit-scrollbar {
  width: 6px;
}

.card-content::-webkit-scrollbar-track {
  background: #f1f5f9;
  border-radius: 3px;
}

.card-content::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 3px;
}

.card-content::-webkit-scrollbar-thumb:hover {
  background: #94a3b8;
}


@media (max-width: 768px) {
  .header-content {
    padding: 0.75rem;
  }

  .header-title {
    font-size: 1rem;
  }

  .user-info {
    display: none;
  }

  .mobile-nav {
    display: flex;
  }

  .dashboard-grid {
    display: block;
  }

  .question-section,
  .history-section,
  .leaderboard-section {
    display: none;
  }

  .question-section.active,
  .history-section.active,
  .leaderboard-section.active {
    display: block;
  }

  .dashboard-main {
    padding: 1rem;
  }

  .card-header {
    padding: 1rem;
  }

  .card-content {
    padding: 1rem;
    max-height: 400px;
  }

  .question-textarea {
    min-height: 100px;
  }

  .user-item {
    padding: 0.75rem;
  }

  .user-name {
    font-size: 0.9rem;
  }
}

@media (max-width: 480px) {
  .header-content {
    padding: 0.5rem;
  }

  .logout-button {
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
  }

  .text-3xl {
    font-size: 1.5rem;
  }

  .text-2xl {
    font-size: 1.25rem;
  }
}