/* Dashboard and Authentication Styles */

/* Auth Modal */
.auth-modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 9999;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
}

.auth-modal-content {
  background: white;
  border-radius: var(--radius-lg);
  padding: 40px;
  max-width: 400px;
  width: 90%;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  position: relative;
}

.auth-close {
  position: absolute;
  top: 16px;
  right: 16px;
  font-size: 28px;
  cursor: pointer;
  color: var(--color-text-muted);
}

.auth-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--color-border);
}

.auth-tab {
  flex: 1;
  padding: 12px;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: all 0.2s;
}

.auth-tab.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.auth-form {
  display: none;
  animation: fadeIn 0.2s;
}

.auth-form.active {
  display: block;
}

.auth-form h3 {
  margin-bottom: 24px;
  font-size: 1.25rem;
  color: var(--color-text);
}

.auth-input {
  width: 100%;
  padding: 12px 16px;
  margin-bottom: 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-family: inherit;
}

.auth-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.auth-button {
  width: 100%;
  padding: 12px;
  margin-bottom: 16px;
  background: var(--color-primary);
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.auth-button:hover {
  background: #4338ca;
  transform: translateY(-1px);
}

.auth-divider {
  text-align: center;
  color: var(--color-text-muted);
  margin: 20px 0;
  position: relative;
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  position: absolute;
  top: 50%;
  width: calc(50% - 16px);
  height: 1px;
  background: var(--color-border);
}

.auth-divider::before {
  left: 0;
}

.auth-divider::after {
  right: 0;
}

.auth-oauth {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px;
  margin-bottom: 8px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
}

.auth-oauth:hover {
  background: var(--color-bg-alt);
  border-color: var(--color-text-muted);
}

/* User Menu */
.user-menu {
  position: relative;
}

.user-menu-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.2s;
}

.user-menu-btn:hover {
  background: var(--color-border);
}

.user-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
}

.user-menu-dropdown {
  display: none;
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 8px;
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  z-index: 100;
  min-width: 180px;
}

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

.user-menu-dropdown a,
.user-menu-dropdown button {
  display: block;
  width: 100%;
  padding: 12px 16px;
  background: none;
  border: none;
  text-align: left;
  cursor: pointer;
  color: var(--color-text);
  text-decoration: none;
  font-size: 0.875rem;
  transition: all 0.2s;
}

.user-menu-dropdown a:hover,
.user-menu-dropdown button:hover {
  background: var(--color-bg-alt);
}

.user-menu-dropdown hr {
  margin: 4px 0;
  border: none;
  border-top: 1px solid var(--color-border);
}

.auth-error {
  position: fixed;
  top: 20px;
  right: 20px;
  padding: 16px 24px;
  background: #ef4444;
  color: white;
  border-radius: var(--radius-md);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  z-index: 10000;
  animation: slideDown 0.3s;
}

/* Dashboard Styles */
.dashboard-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}

.stat-card {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
}

.stat-value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-primary);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-top: 8px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.progress-section {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 24px;
}

.progress-section h3 {
  margin-bottom: 20px;
  font-size: 1.125rem;
  color: var(--color-text);
}

.subject-progress-item {
  margin-bottom: 20px;
}

.subject-progress-item:last-child {
  margin-bottom: 0;
}

.progress-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
  font-size: 0.875rem;
}

.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--color-bg-alt);
  border-radius: 4px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transition: width 0.3s;
}

.certificates-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}

.certificate-badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: white;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  text-align: center;
  transition: all 0.3s;
  cursor: pointer;
}

.certificate-badge:hover {
  border-color: var(--color-primary);
  box-shadow: 0 4px 16px rgba(79, 70, 229, 0.1);
  transform: translateY(-2px);
}

.certificate-badge img {
  width: 80px;
  height: 80px;
  margin-bottom: 12px;
}

.certificate-badge-name {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text);
}

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

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

/* Responsive */
@media (max-width: 768px) {
  .dashboard-container {
    grid-template-columns: 1fr;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .certificates-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .auth-modal-content {
    max-width: 100%;
    margin: 20px;
  }
}