/* ===========================
   SETTINGS PAGE
   =========================== */

.settings-container {
  display: flex;
  gap: var(--spacing-lg);
  min-height: 100vh;
}

.settings-content {
  flex: 1;
  padding: var(--spacing-md);
  max-width: 1000px;
}

.settings-header {
  margin-bottom: var(--spacing-xl);
}

.settings-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
}

.settings-subtitle {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* ===========================
   SETTINGS SIDEBAR (Tabs)
   =========================== */

.settings-tabs {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
  border-bottom: 2px solid var(--border);
  padding-bottom: var(--spacing-lg);
}

.settings-tab {
  padding: var(--spacing-md) var(--spacing-lg);
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  transition: all var(--transition-fast);
  font-family: var(--font-primary);
  text-align: left;
  border-left: 3px solid transparent;
}

.settings-tab:hover {
  color: var(--text);
}

.settings-tab.active {
  color: var(--primary);
  border-left-color: var(--primary);
}

/* ===========================
   SETTINGS SECTION
   =========================== */

.settings-section {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--border);
}

.section-title {
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--text);
}

.section-description {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* ===========================
   PROFILE SECTION
   =========================== */

.profile-section {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
  align-items: start;
}

.profile-avatar-upload {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
}

.profile-avatar {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: var(--primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: 700;
}

.avatar-upload-input {
  display: none;
}

.avatar-upload-btn {
  padding: var(--spacing-sm) var(--spacing-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-weight: 600;
  transition: all var(--transition-fast);
  font-family: var(--font-primary);
}

.avatar-upload-btn:hover {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.avatar-help-text {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-align: center;
}

.profile-form {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
}

.profile-form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.profile-form-group label {
  font-weight: 600;
  color: var(--text);
}

.profile-form-group input {
  width: 100%;
}

/* ===========================
   NOTIFICATIONS PREFERENCES
   =========================== */

.notification-settings {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.notification-group {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md);
  background: var(--surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
}

.notification-info {
  flex: 1;
}

.notification-title {
  font-weight: 600;
  color: var(--text);
  margin-bottom: var(--spacing-xs);
}

.notification-description {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.notification-toggle {
  position: relative;
  width: 50px;
  height: 26px;
  background: var(--border);
  border-radius: 13px;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.notification-toggle::after {
  content: '';
  position: absolute;
  width: 22px;
  height: 22px;
  background: white;
  border-radius: 50%;
  top: 2px;
  left: 2px;
  transition: left var(--transition-fast);
}

.notification-toggle.active {
  background: var(--primary);
}

.notification-toggle.active::after {
  left: 26px;
}

/* ===========================
   APPEARANCE SETTINGS
   =========================== */

.appearance-options {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.appearance-option {
  padding: var(--spacing-md);
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-smooth);
}

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

.appearance-option.selected {
  border-color: var(--primary);
  background: rgba(108, 99, 255, 0.1);
}

.appearance-option-icon {
  font-size: 2rem;
  margin-bottom: var(--spacing-sm);
}

.appearance-option-label {
  font-weight: 600;
  color: var(--text);
}

/* ===========================
   COLOR PICKER
   =========================== */

.color-picker-section {
  margin-top: var(--spacing-lg);
}

.color-picker-title {
  font-weight: 600;
  color: var(--text);
  margin-bottom: var(--spacing-md);
}

.color-picker-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(60px, 1fr));
  gap: var(--spacing-md);
}

.color-option {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-lg);
  cursor: pointer;
  border: 3px solid transparent;
  transition: all var(--transition-fast);
}

.color-option:hover {
  transform: scale(1.1);
}

.color-option.selected {
  border-color: var(--text);
  box-shadow: var(--shadow-lg);
}

/* ===========================
   SEMESTER MANAGEMENT
   =========================== */

.semester-management {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.semester-actions {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.semester-actions .btn {
  flex: 1;
  min-width: 200px;
}

.semester-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.semester-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md);
  background: var(--surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
}

.semester-info {
  flex: 1;
}

.semester-name {
  font-weight: 600;
  color: var(--text);
  margin-bottom: var(--spacing-xs);
}

.semester-dates {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.semester-actions-group {
  display: flex;
  gap: var(--spacing-sm);
}

.semester-actions-group .btn {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: 0.85rem;
}

/* ===========================
   DANGER ZONE
   =========================== */

.danger-zone {
  background: rgba(255, 71, 87, 0.05);
  border: 1px solid var(--danger);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
}

.danger-zone-header {
  margin-bottom: var(--spacing-md);
}

.danger-zone-title {
  font-weight: 600;
  font-size: 1rem;
  color: var(--danger);
}

.danger-zone-description {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-top: var(--spacing-sm);
}

.danger-zone-actions {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.btn-danger-action {
  padding: var(--spacing-sm) var(--spacing-lg);
  background: var(--danger);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-weight: 600;
  transition: all var(--transition-fast);
  font-family: var(--font-primary);
}

.btn-danger-action:hover {
  opacity: 0.9;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* ===========================
   CONFIRMATION DIALOG
   =========================== */

.confirmation-modal {
  max-width: 400px;
}

.confirmation-icon {
  font-size: 2.5rem;
  text-align: center;
  margin-bottom: var(--spacing-md);
}

.confirmation-icon.warning {
  color: var(--warning);
}

.confirmation-icon.danger {
  color: var(--danger);
}

.confirmation-title {
  font-weight: 600;
  font-size: 1.1rem;
  margin-bottom: var(--spacing-sm);
  text-align: center;
}

.confirmation-message {
  color: var(--text-secondary);
  text-align: center;
  margin-bottom: var(--spacing-lg);
  font-size: 0.95rem;
}

.confirmation-actions {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
}

/* ===========================
   RESPONSIVE
   =========================== */

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

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

@media (max-width: 767px) {
  .settings-content {
    padding: var(--spacing-md);
  }

  .settings-tabs {
    flex-direction: row;
    gap: var(--spacing-md);
    overflow-x: auto;
    border-bottom: 1px solid var(--border);
    padding-bottom: var(--spacing-md);
    margin-bottom: var(--spacing-md);
  }

  .settings-tab {
    padding: var(--spacing-sm) var(--spacing-md);
    white-space: nowrap;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    border-left: none;
  }

  .settings-tab.active {
    background: var(--primary);
    color: white;
    border: 1px solid var(--primary);
  }

  .profile-section {
    grid-template-columns: 1fr;
  }

  .profile-form {
    grid-template-columns: 1fr;
  }

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

  .color-picker-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .semester-item {
    flex-direction: column;
    gap: var(--spacing-md);
    align-items: flex-start;
  }

  .semester-actions-group {
    width: 100%;
  }

  .semester-actions-group .btn {
    flex: 1;
  }

  .danger-zone-actions {
    flex-direction: column;
  }

  .btn-danger-action {
    width: 100%;
  }
}

/* ===========================
   GOOGLE INTEGRATION
   =========================== */

.integration-card {
  padding: var(--spacing-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-smooth);
}

.integration-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

.integration-card-icon {
  font-size: 2rem;
  margin-bottom: var(--spacing-md);
}

.integration-card-title {
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--text);
  margin-bottom: var(--spacing-sm);
}

.integration-card-description {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
}

.integration-status {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background: rgba(46, 213, 115, 0.1);
  border-radius: var(--radius-md);
  border: 1px solid rgba(46, 213, 115, 0.3);
  margin-bottom: var(--spacing-lg);
}

.integration-status.disconnected {
  background: rgba(255, 152, 0, 0.1);
  border-color: rgba(255, 152, 0, 0.3);
}

.integration-status-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.integration-status-text {
  flex: 1;
}

.integration-status-title {
  font-weight: 600;
  color: var(--text);
}

.integration-status-info {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.integration-buttons {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--spacing-md);
}

.integration-button {
  padding: var(--spacing-md);
  background: var(--primary);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-weight: 600;
  cursor: pointer;
  font-family: var(--font-primary);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  justify-content: center;
}

.integration-button:hover {
  opacity: 0.9;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.integration-button.secondary {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
}

.integration-button.secondary:hover {
  background: var(--border);
}

.integration-help {
  padding: var(--spacing-md);
  background: rgba(108, 99, 255, 0.05);
  border-left: 3px solid var(--primary);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.integration-help ol {
  margin-left: 1.5rem;
}

.integration-help li {
  margin-bottom: var(--spacing-sm);
}

/* ===========================
   SIDEBAR OPEN STATE (Mobile)
   =========================== */

@media (max-width: 767px) {
  body.sidebar-open {
    overflow: hidden;
  }

  body.sidebar-open .settings-container,
  body.sidebar-open .main-content {
    position: relative;
    z-index: 0;
    pointer-events: none;
  }
}