/* Target Path: style.css */

/* ==========================================================================
   1. GLOBAL CONSTANTS & CORE VARIABLES (Design System Tokens)
   ========================================================================== */
:root {
  --font-primary: 'Sarabun', sans-serif;
  --font-display: 'Outfit', sans-serif;
  
  /* Color Palette - Google Tasks-inspired with Rich Deep Tones (WCAG AA Compliant) */
  --color-primary: #1a73e8;
  --color-primary-dark: #1557b0;
  --color-primary-light: #e8f0fe;
  
  --color-bg-app: #f6f8fa;
  --color-card-bg: #ffffff;
  --color-text-main: #202124;
  --color-text-sub: #5f6368;
  --color-text-muted: #80868b;
  
  --color-border: #dadce0;
  --color-border-active: #1a73e8;
  
  --color-success: #137333;
  --color-success-bg: #e6f4ea;
  --color-danger: #c5221f;
  --color-danger-bg: #fce8e6;
  --color-warning: #b06000;
  
  --color-star: #f4b400;
  
  /* Layout specific to Samsung S21 Ultra (384px width, 854px height, 20:9 aspect ratio) */
  --s21-width: 384px;
  --s21-height: 854px;
}

/* ==========================================================================
   2. RESET & BASE LAYOUT
   ========================================================================== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font-primary);
  font-size: 16px; /* Accessibility requirement: minimum 16px */
  color: var(--color-text-main);
  background-color: #202124; /* Dark outer container for S21 device simulation */
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  /* Anti-Data Loss: Block Pull-to-refresh (Rule 19) */
  overscroll-behavior-y: none;
}

/* Simulate Samsung S21 Ultra Device Container in Desktop, responsive in mobile */
#app-container {
  width: var(--s21-width);
  height: var(--s21-height);
  background-color: var(--color-bg-app);
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  border-radius: 40px; /* Rounded corners to match device shape */
  border: 8px solid #2d3035; /* Device border outline */
}

/* Responsive override for actual mobile screens smaller than simulator */
@media (max-width: 400px), (max-height: 860px) {
  body {
    background-color: var(--color-bg-app);
  }
  #app-container {
    width: 100vw;
    height: 100vh;
    border-radius: 0;
    border: none;
    box-shadow: none;
  }
}

/* Scrollbar styles inside the viewport */
::-webkit-scrollbar {
  width: 4px;
  height: 4px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 10px;
}

/* ==========================================================================
   3. LAZY LOADING OVERLAYS
   ========================================================================== */
.loading-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(255, 255, 255, 0.95);
  z-index: 1000;
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.loading-overlay.active {
  opacity: 1;
  pointer-events: all;
}

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

.css-spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--color-primary-light);
  border-top: 4px solid var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 16px;
}

.loading-text {
  font-size: 16px;
  color: var(--color-text-sub);
  font-weight: 500;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* ==========================================================================
   4. SCREENS CONFIGURATION (SPA)
   ========================================================================== */
.app-screen {
  display: none;
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  flex-direction: column;
}
.app-screen.active {
  display: flex;
}

/* ==========================================================================
   5. SCREEN 1: LOGIN UI
   ========================================================================== */
#screen-login {
  background: linear-gradient(135deg, #e8f0fe 0%, #ffffff 100%);
  justify-content: center;
  align-items: center;
  padding: 24px;
}

.login-wrapper {
  text-align: center;
  width: 100%;
}

.brand-logo {
  width: 80px;
  height: 80px;
  background-color: var(--color-primary);
  border-radius: 22px 14px 28px 18px; /* Organic/Asymmetric Rounded Corner */
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 0 auto 20px;
  box-shadow: 0 10px 25px -5px rgba(26, 115, 232, 0.4);
  transform: rotate(-3deg);
  animation: bounceLogo 3s ease-in-out infinite alternate;
}

.brand-icon {
  color: #ffffff;
  font-size: 44px;
}

.brand-title {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 4px;
}

.brand-subtitle {
  font-family: var(--font-display);
  font-size: 16px;
  color: var(--color-primary);
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 48px;
}

.login-card {
  background: var(--color-card-bg);
  border-radius: 24px 18px 24px 18px; /* Asymmetric border radius */
  padding: 28px 24px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
  border: 1px solid var(--color-border);
}

.login-instruction {
  font-size: 16px;
  color: var(--color-text-sub);
  line-height: 1.6;
  margin-bottom: 28px;
}

.google-btn-container {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 44px;
}

@keyframes bounceLogo {
  0% { transform: rotate(-3deg) translateY(0); }
  100% { transform: rotate(5deg) translateY(-8px); }
}

/* ==========================================================================
   6. HEADER & TAB NAVIGATION (Moo Tasks View)
   ========================================================================== */
.app-header {
  height: 64px;
  background-color: var(--color-card-bg);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 20px;
  flex-shrink: 0;
}

.user-profile {
  display: flex;
  align-items: center;
  gap: 8px;
}

.user-avatar-icon {
  font-size: 28px;
  color: var(--color-primary);
}

.user-email-text {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-sub);
  max-width: 190px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Buttons >= 44x44px for accessibility interaction rule */
.btn-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: none;
  background: transparent;
  color: var(--color-text-sub);
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  outline: none;
  transition: background-color 0.2s, transform 0.1s;
}
.btn-icon:hover {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
}
.btn-icon:active {
  transform: scale(0.92);
}

/* Horizontal Category Top-Tabs Navigation bar */
.tabs-navigation {
  height: 52px;
  background-color: var(--color-card-bg);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  padding-left: 16px;
  flex-shrink: 0;
}

.tabs-wrapper {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  height: 100%;
  align-items: center;
  flex-grow: 1;
  padding-right: 8px;
  /* Hide scrollbar for layout cleanliness */
  scrollbar-width: none;
}
.tabs-wrapper::-webkit-scrollbar {
  display: none;
}

.tab-btn {
  height: 36px;
  padding: 0 16px;
  border-radius: 18px 12px 18px 14px; /* Organic Asymmetric Tab Rounded */
  border: 1px solid var(--color-border);
  background-color: var(--color-card-bg);
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-sub);
  white-space: nowrap;
  display: flex;
  align-items: center;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.tab-btn.active {
  background-color: var(--color-primary-light);
  border-color: var(--color-primary);
  color: var(--color-primary);
  font-weight: 600;
  box-shadow: 2px 2px 8px rgba(26, 115, 232, 0.15);
}

.tab-settings-btn {
  width: 44px;
  height: 100%;
  border: none;
  background: linear-gradient(90deg, rgba(255,255,255,0) 0%, rgba(255,255,255,1) 30%);
  color: var(--color-text-sub);
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  padding-right: 12px;
  flex-shrink: 0;
}
.tab-settings-btn:hover {
  color: var(--color-primary);
}

/* ==========================================================================
   7. MAIN TASK VIEWS (Pending & Completed Lists)
   ========================================================================== */
.tasks-viewport {
  flex-grow: 1;
  overflow-y: auto;
  padding: 16px 16px 24px 16px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* วันครบกำหนด ไฮไลท์การ์ดสีแบบ Rich Aesthetics (Rule 2) */
.task-card.due-past {
  border-left: 5px solid var(--color-danger);
  background: linear-gradient(90deg, #fffdfd 0%, #ffffff 100%);
}
.task-card.due-today {
  border-left: 5px solid var(--color-star);
  background: linear-gradient(90deg, #fffef9 0%, #ffffff 100%);
}
.task-card.due-future {
  border-left: 5px solid #22c55e;
  background: linear-gradient(90deg, #f7fdf9 0%, #ffffff 100%);
}
.task-card.completed {
  border-left: 1px solid var(--color-border) !important;
  background: var(--color-card-bg) !important;
  opacity: 0.8;
}

.tasks-section {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.section-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text-sub);
  margin-left: 4px;
  letter-spacing: 0.5px;
}

.tasks-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.tasks-list.collapsed {
  display: none !important;
}

#btn-toggle-completed.collapsed #icon-completed-toggle {
  transform: rotate(-90deg);
}

/* --- Organic Asymmetry Task Cards --- */
.task-card {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
  transition: transform 0.2s, box-shadow 0.2s;
  
  /* Intentional asymmetrical corners & shadows */
  border-radius: 20px 14px 24px 16px;
  box-shadow: 4px 6px 15px rgba(0, 0, 0, 0.02);
}

.task-card:nth-child(even) {
  /* Dynamic Asymmetry: alternating corner styles for organic feel */
  border-radius: 14px 22px 18px 24px;
  box-shadow: -2px 6px 15px rgba(0, 0, 0, 0.02);
}

.task-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.06);
}

/* Completed items list styling - simplified items */
.completed-item {
  background-color: rgba(241, 243, 244, 0.5);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

/* Card Header: Checkbox + Title + Star Button */
.task-card-header {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.task-checkbox-container {
  padding-top: 2px;
}

.btn-checkbox {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 2px solid var(--color-text-muted);
  background-color: transparent;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-checkbox:hover {
  border-color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.btn-checkbox .check-icon {
  font-size: 16px;
  color: white;
  display: none;
}

.task-card.completed .btn-checkbox {
  background-color: var(--color-success);
  border-color: var(--color-success);
}
.task-card.completed .btn-checkbox .check-icon {
  display: block;
}

.task-title-area {
  flex-grow: 1;
}

.task-title {
  font-size: 16px;
  font-weight: 500;
  color: var(--color-text-main);
  line-height: 1.4;
  word-break: break-word;
}

.task-card.completed .task-title {
  text-decoration: line-through;
  color: var(--color-text-muted);
}

.btn-star {
  background: transparent;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  width: 32px;
  height: 32px;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: transform 0.2s;
}
.btn-star:active {
  transform: scale(0.8);
}
.btn-star.active {
  color: var(--color-star);
}
.btn-star .star-icon {
  font-size: 24px;
}

/* Task Meta Details (Notes, Due Date, Images) */
.task-details {
  padding-left: 36px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.task-notes {
  font-size: 14px;
  color: var(--color-text-sub);
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
}

.task-badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.task-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  font-weight: 500;
  padding: 4px 10px;
  border-radius: 12px;
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  max-width: 100%;
}

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

.badge-icon {
  font-size: 14px;
}

/* Image Attachment Previews */
.task-image-attachment {
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  max-width: 150px;
  max-height: 100px;
  cursor: pointer;
  position: relative;
  box-shadow: 2px 4px 8px rgba(0, 0, 0, 0.05);
}

.task-image-attachment img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Subtasks list styling in Card */
.task-subtasks-area {
  padding-left: 36px;
  border-left: 2px dashed var(--color-border);
  margin-left: 11px;
  margin-top: 4px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.subtask-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-checkbox-subtask {
  width: 18px;
  height: 18px;
  border-radius: 4px;
  border: 2px solid var(--color-text-muted);
  background-color: transparent;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  flex-shrink: 0;
  transition: all 0.1s;
}

.btn-checkbox-subtask .check-icon-sub {
  font-size: 12px;
  color: white;
  display: none;
}

.subtask-item.completed .btn-checkbox-subtask {
  background-color: var(--color-success);
  border-color: var(--color-success);
}
.subtask-item.completed .btn-checkbox-subtask .check-icon-sub {
  display: block;
}

.subtask-title {
  font-size: 14px;
  color: var(--color-text-main);
  word-break: break-word;
}

.subtask-item.completed .subtask-title {
  text-decoration: line-through;
  color: var(--color-text-muted);
}

/* Card Inline Action Buttons */
.task-card-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid #f1f3f4;
  padding-top: 12px;
  margin-top: 4px;
}

.action-buttons-group {
  display: flex;
  gap: 4px;
}

.btn-card-action {
  height: 36px;
  padding: 0 10px;
  border-radius: 8px;
  border: none;
  background-color: transparent;
  color: var(--color-text-sub);
  font-size: 13px;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  transition: background-color 0.2s;
}

.btn-card-action:hover {
  background-color: #f1f3f4;
  color: var(--color-primary);
}

.btn-card-action.danger-action:hover {
  background-color: var(--color-danger-bg);
  color: var(--color-danger);
}

.btn-card-action .action-icon {
  font-size: 18px;
}

/* Inline Dynamic Add-Subtask Form */
.inline-subtask-form {
  padding-left: 36px;
  display: flex;
  gap: 6px;
}

.inline-subtask-input {
  flex-grow: 1;
  height: 36px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 0 10px;
  font-size: 14px;
  outline: none;
}
.inline-subtask-input:focus {
  border-color: var(--color-primary);
}

.btn-inline-submit {
  height: 36px;
  width: 36px;
  border-radius: 8px;
  border: none;
  background-color: var(--color-primary);
  color: white;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
}

.btn-inline-submit:hover {
  background-color: var(--color-primary-dark);
}

.btn-inline-submit .btn-icon-sub {
  font-size: 18px;
}

/* ==========================================================================
   8. FIXED BOTTOM QUICK ADD FORM
   ========================================================================== */
.bottom-quick-add {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: var(--color-card-bg);
  border-top: 1px solid var(--color-border);
  padding: 12px 16px 24px 16px; /* Offset bottom spacing to look organic */
  z-index: 100;
}

.quick-add-form {
  display: flex;
  align-items: center;
  gap: 12px;
}

.quick-add-input-group {
  flex-grow: 1;
  height: 48px;
  border-radius: 24px;
  background-color: var(--color-bg-app);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  padding: 0 16px;
  gap: 8px;
  transition: border-color 0.2s, background-color 0.2s;
}

.quick-add-input-group:focus-within {
  border-color: var(--color-primary);
  background-color: white;
}

.add-input-icon {
  color: var(--color-text-sub);
}

.quick-add-input {
  border: none;
  background: transparent;
  flex-grow: 1;
  height: 100%;
  font-size: 16px;
  color: var(--color-text-main);
  outline: none;
}

.btn-quick-save {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: none;
  background-color: var(--color-primary);
  color: white;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  box-shadow: 0 4px 10px rgba(26, 115, 232, 0.3);
  transition: transform 0.1s, background-color 0.2s;
}
.btn-quick-save:hover {
  background-color: var(--color-primary-dark);
}
.btn-quick-save:active {
  transform: scale(0.92);
}

/* ==========================================================================
   9. CUSTOM MODALS OVERLAYS (Rule 25, 26)
   ========================================================================== */
.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.4);
  z-index: 500;
  display: flex;
  justify-content: center;
  align-items: flex-end; /* Show modal sliding from bottom on mobile screen */
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.modal-content {
  background-color: var(--color-card-bg);
  width: 100%;
  border-radius: 28px 28px 0 0; /* Bottom sheet styling */
  max-height: 80%;
  display: flex;
  flex-direction: column;
  transform: translateY(100%);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  border: 1px solid var(--color-border);
  box-shadow: 0 -10px 30px rgba(0,0,0,0.1);
}

.modal-overlay.active .modal-content {
  transform: translateY(0);
}

.modal-header {
  height: 60px;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 20px;
  flex-shrink: 0;
}

.modal-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text-main);
}

.modal-close-btn {
  color: var(--color-text-sub);
}

.modal-body {
  flex-grow: 1;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Form layouts inside modals */
.form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}

.form-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-sub);
}

.label-required {
  color: var(--color-danger);
  font-size: 12px;
}

.form-input {
  height: 48px;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 0 16px;
  font-size: 16px;
  outline: none;
  background-color: var(--color-bg-app);
  width: 100%;
}
.form-input:focus {
  border-color: var(--color-primary);
  background-color: white;
}

.form-textarea {
  min-height: 80px;
  max-height: 200px; /* Rule 10: auto-expand with 200px limitation */
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 12px 16px;
  font-size: 16px;
  outline: none;
  background-color: var(--color-bg-app);
  font-family: inherit;
  resize: none;
  width: 100%;
  overflow-y: hidden;
}
.form-textarea:focus {
  border-color: var(--color-primary);
  background-color: white;
}

/* ปุ่มเลื่อนวันแบบด่วน */
.btn-snooze-opt:hover {
  background-color: var(--color-primary-light) !important;
  border-color: var(--color-primary) !important;
  color: var(--color-primary) !important;
}
.btn-snooze-opt:active {
  transform: scale(0.95);
}

/* งานย่อยใน Modal */
.modal-subtask-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: var(--color-bg-app);
  border-radius: 8px;
  padding: 8px 12px;
  border: 1px solid var(--color-border);
  gap: 8px;
}
.modal-subtask-text {
  font-size: 14px;
  color: var(--color-text-main);
  flex-grow: 1;
  word-break: break-all;
}
.modal-subtask-text.completed {
  text-decoration: line-through;
  color: var(--color-text-muted);
}
.btn-delete-subtask {
  color: var(--color-danger);
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 4px;
  display: flex;
  align-items: center;
}

.field-error-msg {
  color: var(--color-danger);
  font-size: 13px;
  font-weight: 500;
  margin-top: 2px;
  display: none;
}

.field-help-text {
  font-size: 12px;
  color: var(--color-text-muted);
  line-height: 1.4;
  margin-top: 4px;
}

/* Smart Date Container Stack Overlay Logic (Rule 24) */
.smart-date-container {
  position: relative;
  display: flex;
  align-items: center;
}

.smart-date-input {
  padding-right: 48px;
}

.date-picker-trigger {
  position: absolute;
  right: 12px;
  width: 32px;
  height: 32px;
  display: flex;
  justify-content: center;
  align-items: center;
  color: var(--color-primary);
  cursor: pointer;
}

.date-calendar-icon {
  font-size: 20px;
  pointer-events: none;
}

/* Stack and overlay Native date picker on top of icon with opacity 0 (Rule 24) */
.hidden-date-input {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

/* Checkbox alignment */
.checkbox-field {
  flex-direction: row;
  align-items: center;
  gap: 8px;
}

.form-checkbox {
  width: 20px;
  height: 20px;
  cursor: pointer;
}

.form-checkbox-label {
  font-size: 16px;
  display: flex;
  align-items: center;
  gap: 4px;
  color: var(--color-text-main);
  cursor: pointer;
}

.star-icon-checkbox {
  color: var(--color-star);
  font-size: 20px;
}

/* Modal Actions Buttons */
.btn-submit-save {
  height: 48px;
  background-color: var(--color-primary);
  color: white;
  border-radius: 12px;
  border: none;
  font-size: 16px;
  font-weight: 600;
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  box-shadow: 0 4px 10px rgba(26, 115, 232, 0.2);
  transition: background-color 0.2s;
}
.btn-submit-save:hover {
  background-color: var(--color-primary-dark);
}
.btn-submit-save:disabled {
  background-color: var(--color-text-muted);
  cursor: not-allowed;
  box-shadow: none;
}

/* --- Inline settings layout --- */
.inline-add-form {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.settings-input {
  flex-grow: 1;
  height: 44px;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 0 12px;
  font-size: 15px;
  outline: none;
  background-color: var(--color-bg-app);
}
.settings-input:focus {
  border-color: var(--color-primary);
  background-color: white;
}

.btn-settings-action {
  height: 44px;
  padding: 0 16px;
  background-color: var(--color-primary);
  color: white;
  border-radius: 10px;
  border: none;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
}

.settings-group {
  border-bottom: 1px solid #f1f3f4;
  padding-bottom: 16px;
}
.settings-group:last-child {
  border: none;
}

.settings-group-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-text-sub);
  margin-bottom: 12px;
}

.settings-item-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 180px;
  overflow-y: auto;
}

.settings-item {
  height: 40px;
  background-color: var(--color-bg-app);
  border-radius: 8px;
  padding: 0 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 15px;
}

.btn-delete-setting {
  background: transparent;
  border: none;
  color: var(--color-danger);
  cursor: pointer;
  display: flex;
  justify-content: center;
  align-items: center;
}

.btn-logout {
  width: 100%;
  height: 48px;
  background-color: var(--color-danger-bg);
  color: var(--color-danger);
  border: 1px solid var(--color-danger);
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  transition: background-color 0.2s;
}
.btn-logout:hover {
  background-color: #fce8e6;
}

/* ==========================================================================
   10. SPECIAL ANIMATIONS & SWAL CUSTOMIZATION
   ========================================================================== */
.swal2-popup {
  font-family: var(--font-primary) !important;
  border-radius: 20px !important;
}