/* Meeplify - Notion-style Minimal Design System */

:root {
  /* Notion Exact Color Palette */
  --color-gray-50: #fafbfb;
  --color-gray-100: #f1f3f3;
  --color-gray-200: #e9ebeb;
  --color-gray-300: #d9dcdd;
  --color-gray-400: #9b9da0;
  --color-gray-500: #6f7177;
  --color-gray-600: #55565b;
  --color-gray-700: #373a40;
  --color-gray-800: #25272c;
  --color-gray-900: #181a1f;

  /* Notion Brand Colors */
  --color-primary: #2d7cf3;
  --color-primary-hover: #2563eb;
  --color-primary-light: #e8f2ff;
  --color-success: #0f7b0f;
  --color-warning: #e9b00a;
  --color-error: #eb5757;

  /* Notion Typography Scale */
  --font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI Variable Display", "Segoe UI", Helvetica, "Apple Color Emoji", Arial, sans-serif, "Segoe UI Emoji", "Segoe UI Symbol";
  --font-size-xs: 0.75rem;      /* 12px */
  --font-size-sm: 0.875rem;     /* 14px */
  --font-size-base: 1rem;       /* 16px */
  --font-size-lg: 1.125rem;     /* 18px */
  --font-size-xl: 1.25rem;      /* 20px */
  --font-size-2xl: 1.5rem;      /* 24px */
  --font-size-3xl: 1.875rem;    /* 30px */
  --font-size-4xl: 2.25rem;     /* 36px */
  --font-size-5xl: 3rem;        /* 48px */

  /* Spacing - 8-point system */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;

  /* Borders */
  --border-radius-sm: 0.375rem;
  --border-radius: 0.5rem;
  --border-radius-lg: 0.75rem;
  --border-width: 1px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
}

/* Reset and base styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.5;
  color: var(--color-gray-900);
  background-color: var(--color-gray-50);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Layout Components */
.main-layout {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 250px;
  background: white;
  border-right: var(--border-width) solid var(--color-gray-200);
  flex-shrink: 0;
  padding: var(--space-6) 0;
  display: flex;
  flex-direction: column;
}

.sidebar-header {
  padding: 0 var(--space-6);
  margin-bottom: var(--space-8);
}

.logo {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-gray-900);
}

.nav-list {
  list-style: none;
  flex: 1;
}

.nav-item {
  margin-bottom: var(--space-1);
}

.nav-link {
  display: flex;
  align-items: center;
  padding: var(--space-3) var(--space-6);
  color: var(--color-gray-600);
  text-decoration: none;
  transition: all var(--transition-fast);
  border-right: 2px solid transparent;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  cursor: pointer;
  font-size: var(--font-size-sm);
}

.nav-link:hover {
  background: var(--color-gray-50);
  color: var(--color-gray-900);
}

.nav-link.active {
  background: var(--color-gray-50);
  color: var(--color-primary);
  border-right-color: var(--color-primary);
}

.nav-icon {
  margin-right: var(--space-3);
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.header {
  background: white;
  border-bottom: var(--border-width) solid var(--color-gray-200);
  padding: var(--space-4) var(--space-6);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header-title {
  font-size: var(--font-size-2xl);
  font-weight: 600;
  color: var(--color-gray-900);
  margin: 0;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.user-menu {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--border-radius);
  transition: background var(--transition-fast);
  cursor: pointer;
  border: none;
  background: transparent;
}

.user-menu:hover {
  background: var(--color-gray-100);
}

.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: var(--font-size-sm);
}

.content-area {
  flex: 1;
  padding: var(--space-6);
  overflow-y: auto;
  background: var(--color-gray-50);
}

.dashboard-content {
  max-width: 1200px;
  margin: 0 auto;
}

/* Button Components */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--border-radius);
  font-size: var(--font-size-sm);
  font-weight: 500;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  outline: none;
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

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

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

.btn-secondary {
  background: var(--color-gray-100);
  color: var(--color-gray-700);
  border: var(--border-width) solid var(--color-gray-200);
}

.btn-secondary:hover {
  background: var(--color-gray-200);
}

.btn-ghost {
  background: transparent;
  color: var(--color-gray-600);
}

.btn-ghost:hover {
  background: var(--color-gray-100);
  color: var(--color-gray-900);
}

.btn-sm {
  padding: var(--space-1) var(--space-3);
  font-size: var(--font-size-xs);
}

.btn-icon {
  padding: var(--space-2);
  width: 32px;
  height: 32px;
}

/* Card Components */
.card {
  background: white;
  border: var(--border-width) solid var(--color-gray-200);
  border-radius: var(--border-radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.card:hover {
  box-shadow: var(--shadow);
  border-color: var(--color-gray-300);
}

.checklist-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-6);
}

.checklist-card {
  background: white;
  border: var(--border-width) solid var(--color-gray-200);
  border-radius: var(--border-radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  cursor: pointer;
  position: relative;
}

.checklist-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.checklist-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-gray-900);
  margin-bottom: var(--space-3);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.checklist-progress {
  margin: var(--space-4) 0;
}

.progress-bar {
  height: 4px;
  background: var(--color-gray-200);
  border-radius: var(--border-radius-sm);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--color-primary);
  transition: width var(--transition-normal);
}

.progress-text {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  margin-top: var(--space-2);
}

.checklist-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin: var(--space-4) 0;
}

.checklist-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: var(--border-width) solid var(--color-gray-200);
}

.collaborators {
  display: flex;
  align-items: center;
}

.collaborator-avatars {
  display: flex;
  margin-right: var(--space-2);
}

.collaborator-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-gray-300);
  border: 2px solid white;
  margin-left: -8px;
  font-size: var(--font-size-xs);
  display: flex;
  align-items: center;
  justify-content: center;
}

.collaborator-avatar:first-child {
  margin-left: 0;
}

.updated-time {
  font-size: var(--font-size-xs);
  color: var(--color-gray-500);
}

/* Tag Components - Responsive Design */
.tag {
  display: inline-flex;
  align-items: center;
  height: 24px;
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-xs);
  font-weight: 500;
  overflow: hidden;
  border: var(--border-width) solid transparent;
  transition: all var(--transition-fast);
}

.tag__emoji {
  font-size: var(--font-size-sm);
  flex-shrink: 0;
}

.tag__label {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Desktop tags: emoji + color + text */
@media (min-width: 768px) {
  .tag {
    padding: 0 var(--space-2);
    gap: var(--space-1);
    max-width: 200px;
  }

  .tag__label {
    display: inline;
  }
}

/* Mobile tags: emoji + color only */
@media (max-width: 767px) {
  .tag {
    width: 24px;
    height: 24px;
    padding: 0;
    justify-content: center;
    border-radius: 50%;
  }

  .tag__label {
    display: none;
  }

  .tag__emoji {
    font-size: 12px;
  }
}

/* Tag picker styles */
.tag-picker-modal {
  max-width: 600px;
  max-height: 80vh;
}

.tag-picker__content {
  max-height: 60vh;
  overflow-y: auto;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-2);
}

.tag-option {
  position: relative;
  cursor: pointer;
  border-radius: var(--border-radius);
  padding: var(--space-2);
  border: 2px solid transparent;
  transition: all var(--transition-fast);
}

.tag-option:hover {
  background: var(--color-gray-50);
  border-color: var(--color-gray-200);
}

.tag-option--selected {
  background: var(--color-primary);
  background: linear-gradient(135deg, rgba(49, 130, 206, 0.1) 0%, rgba(49, 130, 206, 0.05) 100%);
  border-color: var(--color-primary);
}

.tag-option__checkmark {
  position: absolute;
  top: -8px;
  right: -8px;
  width: 20px;
  height: 20px;
  background: var(--color-primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xs);
  font-weight: bold;
  box-shadow: var(--shadow);
}

.tag--selectable {
  cursor: pointer;
  transition: transform var(--transition-fast);
}

.tag--selectable:hover {
  transform: translateY(-1px);
}

/* Tag creation form */
.tag-create-form {
  background: var(--color-gray-50);
  border-radius: var(--border-radius);
  padding: var(--space-4);
  margin-top: var(--space-3);
}

.form-row {
  display: flex;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.form-row:last-child {
  margin-bottom: 0;
}

.form-col {
  flex: 1;
}

.form-col--full {
  flex: none;
  width: 100%;
}

.form-label--small {
  font-size: var(--font-size-xs);
  margin-bottom: var(--space-1);
}

/* Emoji picker */
.emoji-picker {
  position: relative;
}

.emoji-input {
  width: 100%;
  text-align: center;
  font-size: var(--font-size-lg);
  height: 40px;
}

.emoji-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--space-1);
  margin-top: var(--space-2);
}

.emoji-option {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: none;
  background: white;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  font-size: var(--font-size-base);
  transition: all var(--transition-fast);
}

.emoji-option:hover {
  background: var(--color-gray-100);
  transform: scale(1.1);
}

/* Color picker */
.color-picker {
  position: relative;
}

.color-input {
  width: 100%;
  height: 40px;
  padding: var(--space-1);
  border-radius: var(--border-radius);
  cursor: pointer;
}

.color-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-2);
  margin-top: var(--space-2);
}

.color-option {
  width: 32px;
  height: 32px;
  border: 2px solid var(--color-gray-200);
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.color-option:hover {
  transform: scale(1.1);
  border-color: var(--color-gray-400);
}

/* Tag preview */
.tag-preview {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2);
  background: white;
  border-radius: var(--border-radius-sm);
  border: var(--border-width) solid var(--color-gray-200);
}

.empty-state-small {
  text-align: center;
  padding: var(--space-4);
  color: var(--color-gray-500);
  font-style: italic;
}

.tag-count {
  display: inline-flex;
  align-items: center;
  padding: 0 var(--space-2);
  height: 20px;
  background: var(--color-gray-200);
  border-radius: var(--border-radius-sm);
  font-weight: 500;
  margin-left: var(--space-1);
}

/* Form Components */
.form-group {
  margin-bottom: var(--space-4);
}

.label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-gray-700);
  margin-bottom: var(--space-2);
}

.input {
  width: 100%;
  padding: var(--space-3);
  border: var(--border-width) solid var(--color-gray-300);
  border-radius: var(--border-radius);
  font-size: var(--font-size-base);
  transition: border-color var(--transition-fast);
}

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

.textarea {
  resize: vertical;
  min-height: 80px;
}

/* Modal Components */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  transition: opacity var(--transition-normal);
  backdrop-filter: blur(2px);
}

.modal-overlay.show {
  opacity: 1;
}

.modal {
  background: white;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  width: 90vw;
  max-height: 90vh;
  overflow: hidden;
  transform: scale(0.95);
  transition: transform var(--transition-normal);
  display: flex;
  flex-direction: column;
}

/* Modal sizes */
.modal-overlay--small .modal {
  max-width: 400px;
}

.modal-overlay--medium .modal {
  max-width: 500px;
}

.modal-overlay--large .modal {
  max-width: 800px;
}

.modal-overlay.show .modal {
  transform: scale(1);
}

.modal__header {
  padding: var(--space-6);
  border-bottom: var(--border-width) solid var(--color-gray-200);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-shrink: 0;
}

.modal__title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin: 0;
}

.modal__body {
  padding: var(--space-6);
  overflow-y: auto;
  flex: 1;
}

.modal__footer {
  padding: var(--space-6);
  border-top: var(--border-width) solid var(--color-gray-200);
  display: flex;
  justify-content: flex-end;
  gap: var(--space-3);
  flex-shrink: 0;
}

/* Modal state management */
.modal-open {
  overflow: hidden;
}

/* Enhanced modal styles */
.modal-confirm {
  min-width: 80px;
}

.modal-cancel {
  min-width: 80px;
}

/* Form styles within modals */
.modal .form-input,
.modal .form-textarea {
  width: 100%;
}

.modal .form-group:last-child {
  margin-bottom: 0;
}

/* Loading state for modals */
.modal--loading .modal__body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 120px;
}

.modal--loading .modal__footer {
  display: none;
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  z-index: 1100;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  pointer-events: none;
}

/* Toast positions */
.toast-container--top-right {
  top: var(--space-6);
  right: var(--space-6);
}

.toast-container--top-left {
  top: var(--space-6);
  left: var(--space-6);
}

.toast-container--bottom-right {
  bottom: var(--space-6);
  right: var(--space-6);
}

.toast-container--bottom-left {
  bottom: var(--space-6);
  left: var(--space-6);
}

.toast-container--top-center {
  top: var(--space-6);
  left: 50%;
  transform: translateX(-50%);
}

.toast-container--bottom-center {
  bottom: var(--space-6);
  left: 50%;
  transform: translateX(-50%);
}

.toast {
  background: white;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  padding: var(--space-4);
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  min-width: 320px;
  max-width: 500px;
  transform: translateX(100%);
  transition: all var(--transition-normal);
  border: var(--border-width) solid var(--color-gray-200);
  pointer-events: auto;
  position: relative;
}

/* Toast animations */
.toast--show {
  transform: translateX(0);
}

/* Toast types */
.toast--success {
  border-left: 4px solid var(--color-success);
}

.toast--success .toast__icon {
  color: var(--color-success);
}

.toast--error {
  border-left: 4px solid var(--color-error);
}

.toast--error .toast__icon {
  color: var(--color-error);
}

.toast--warning {
  border-left: 4px solid var(--color-warning);
}

.toast--warning .toast__icon {
  color: var(--color-warning);
}

.toast--info {
  border-left: 4px solid var(--color-primary);
}

.toast--info .toast__icon {
  color: var(--color-primary);
}

.toast--loading {
  border-left: 4px solid var(--color-primary);
}

.toast--loading .toast__icon {
  color: var(--color-primary);
}

/* Toast components */
.toast__icon {
  flex-shrink: 0;
  margin-top: 2px;
}

.toast__content {
  flex: 1;
  min-width: 0;
}

.toast__message {
  font-size: var(--font-size-sm);
  color: var(--color-gray-700);
  line-height: 1.4;
  margin: 0;
}

.toast__actions {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-2);
}

.toast__action {
  background: transparent;
  border: var(--border-width) solid var(--color-primary);
  color: var(--color-primary);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-xs);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.toast__action:hover {
  background: var(--color-primary);
  color: white;
}

.toast__close {
  position: absolute;
  top: var(--space-2);
  right: var(--space-2);
  background: transparent;
  border: none;
  color: var(--color-gray-400);
  cursor: pointer;
  padding: var(--space-1);
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.toast__close:hover {
  background: var(--color-gray-100);
  color: var(--color-gray-600);
}

/* Toast spinner animation */
.toast__spinner {
  animation: toast-spin 1s linear infinite;
}

@keyframes toast-spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* Left-side containers animate from left */
.toast-container--top-left .toast,
.toast-container--bottom-left .toast {
  transform: translateX(-100%);
}

.toast-container--top-left .toast--show,
.toast-container--bottom-left .toast--show {
  transform: translateX(0);
}

/* Center containers animate from top/bottom */
.toast-container--top-center .toast {
  transform: translateY(-100%);
}

.toast-container--top-center .toast--show {
  transform: translateY(0);
}

.toast-container--bottom-center .toast {
  transform: translateY(100%);
}

.toast-container--bottom-center .toast--show {
  transform: translateY(0);
}

/* Mobile responsive */
@media (max-width: 767px) {
  .toast-container {
    left: var(--space-4) !important;
    right: var(--space-4) !important;
    transform: none !important;
  }
  
  .toast {
    min-width: auto;
    max-width: none;
    width: 100%;
  }
  
  .toast-container--top-left .toast,
  .toast-container--top-right .toast,
  .toast-container--top-center .toast {
    transform: translateY(-100%);
  }
  
  .toast-container--bottom-left .toast,
  .toast-container--bottom-right .toast,
  .toast-container--bottom-center .toast {
    transform: translateY(100%);
  }
  
  .toast-container .toast--show {
    transform: translateY(0) !important;
  }
}

/* Empty States */
.empty-state {
  text-align: center;
  padding: var(--space-16) var(--space-6);
}

.empty-state-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-4);
  opacity: 0.5;
}

.empty-state-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-gray-900);
  margin-bottom: var(--space-2);
}

.empty-state-message {
  color: var(--color-gray-600);
  margin-bottom: var(--space-6);
}

/* Loading States */
.skeleton {
  background: linear-gradient(90deg, var(--color-gray-200) 25%, var(--color-gray-100) 50%, var(--color-gray-200) 75%);
  background-size: 200% 100%;
  animation: skeleton-loading 2s infinite;
}

@keyframes skeleton-loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.skeleton-text {
  height: 1em;
  border-radius: var(--border-radius-sm);
  margin-bottom: var(--space-2);
}

.skeleton-text.short {
  width: 60%;
}

.skeleton-text.medium {
  width: 80%;
}

.skeleton-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-6);
}

.skeleton-card {
  background: white;
  border: var(--border-width) solid var(--color-gray-200);
  border-radius: var(--border-radius-lg);
  padding: var(--space-6);
}

.skeleton-card .skeleton-text:first-child {
  height: 1.5em;
  margin-bottom: var(--space-4);
}

.loading-state {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 300px;
}

/* Enhanced Loading States */
.loading-spinner-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-8);
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--color-gray-200);
  border-top: 4px solid var(--color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: var(--space-4);
}

.loading-message {
  color: var(--color-gray-600);
  font-size: var(--font-size-sm);
  margin: 0;
}

/* Button Loading States */
.button-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
}

.button-spinner {
  width: 16px;
  height: 16px;
  border: 2px solid transparent;
  border-top: 2px solid currentColor;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

/* Progress Bars */
.progress-container {
  padding: var(--space-4);
}

.progress-message {
  font-size: var(--font-size-sm);
  color: var(--color-gray-700);
  margin-bottom: var(--space-2);
  text-align: center;
}

.progress-bar-container {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.progress-bar {
  flex: 1;
  height: 8px;
  background: var(--color-gray-200);
  border-radius: var(--border-radius);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--color-primary);
  border-radius: var(--border-radius);
  transition: width var(--transition-normal);
}

.progress-text {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  font-weight: 500;
  min-width: 40px;
  text-align: right;
}

/* Skeleton List */
.skeleton-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.skeleton-list-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  background: white;
  border-radius: var(--border-radius);
  border: var(--border-width) solid var(--color-gray-200);
}

.skeleton-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(90deg, var(--color-gray-200) 25%, var(--color-gray-100) 50%, var(--color-gray-200) 75%);
  background-size: 200% 100%;
  animation: skeleton-loading 2s infinite;
  flex-shrink: 0;
}

.skeleton-content {
  flex: 1;
}

/* Skeleton Form */
.skeleton-form {
  max-width: 400px;
  margin: 0 auto;
}

.skeleton-form-group {
  margin-bottom: var(--space-6);
}

/* Template card styles */
.template-card {
  border: 2px dashed var(--color-gray-300);
}

.template-card:hover {
  border-color: var(--color-primary);
  border-style: solid;
}

.template-badge {
  background: var(--color-primary);
  color: white;
  font-size: var(--font-size-xs);
  font-weight: 500;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--border-radius-sm);
}

.template-description {
  color: var(--color-gray-600);
  font-size: var(--font-size-sm);
  margin: var(--space-4) 0;
  line-height: 1.4;
}

.template-stats {
  display: flex;
  gap: var(--space-4);
  margin: var(--space-4) 0;
}

.template-stats .stat {
  font-size: var(--font-size-xs);
  color: var(--color-gray-500);
}

/* Features grid for login */
.features-grid {
  margin-top: 2rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  text-align: left;
}

.feature-item {
  padding: var(--space-3);
}

.feature-item h3 {
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-2);
}

.feature-item p {
  font-size: var(--font-size-xs);
  color: var(--color-gray-600);
  margin: 0;
}

/* Dropdown menus */
.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  right: 0;
  background: white;
  border: var(--border-width) solid var(--color-gray-200);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  min-width: 180px;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-fast);
}

.dropdown-menu.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item {
  display: block;
  width: 100%;
  padding: var(--space-2) var(--space-4);
  color: var(--color-gray-700);
  text-decoration: none;
  border: none;
  background: none;
  text-align: left;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.dropdown-item:hover {
  background: var(--color-gray-50);
}

.dropdown-divider {
  height: 1px;
  background: var(--color-gray-200);
  margin: var(--space-2) 0;
}

/* Additional checklist card styles */
.checklist-card__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-3);
}

.checklist-progress {
  margin: var(--space-4) 0;
}

/* Drag and Drop Styles */
.draggable {
  cursor: move;
  transition: all var(--transition-fast);
}

.draggable:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.dragging {
  transform: rotate(2deg);
  z-index: 1000;
  box-shadow: var(--shadow-lg);
}

.drag-over {
  border: 2px dashed var(--color-primary);
  background: rgba(var(--color-primary), 0.05);
}

.drag-placeholder {
  background: var(--color-gray-100);
  border: 2px dashed var(--color-gray-300);
  border-radius: var(--border-radius);
  margin: var(--space-2) 0;
  opacity: 0.5;
  transition: all var(--transition-fast);
}

/* Touch drag feedback */
@media (hover: none) and (pointer: coarse) {
  .draggable {
    cursor: grab;
  }
  
  .dragging {
    cursor: grabbing;
    transform: scale(1.05);
  }
}

/* Utilities */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.hidden {
  display: none !important;
}

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

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

.font-semibold {
  font-weight: 600;
}

.font-bold {
  font-weight: 700;
}

.text-xs {
  font-size: var(--font-size-xs);
}

.text-sm {
  font-size: var(--font-size-sm);
}

.text-lg {
  font-size: var(--font-size-lg);
}

.text-xl {
  font-size: var(--font-size-xl);
}

.text-gray-500 {
  color: var(--color-gray-500);
}

.text-gray-600 {
  color: var(--color-gray-600);
}

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

.mb-2 {
  margin-bottom: var(--space-2);
}

.mb-4 {
  margin-bottom: var(--space-4);
}

.mb-6 {
  margin-bottom: var(--space-6);
}

.mt-4 {
  margin-top: var(--space-4);
}

.gap-2 {
  gap: var(--space-2);
}

.gap-3 {
  gap: var(--space-3);
}

.gap-4 {
  gap: var(--space-4);
}

/* Responsive Design */
@media (max-width: 1023px) {
  .sidebar {
    width: 200px;
  }
}

@media (max-width: 767px) {
  .app-layout {
    flex-direction: column;
  }
  
  .sidebar {
    width: 100%;
    height: auto;
    border-right: none;
    border-bottom: var(--border-width) solid var(--color-gray-200);
    padding: var(--space-4) 0;
  }

  .sidebar-header {
    padding: 0 var(--space-4);
    margin-bottom: var(--space-4);
  }

  .nav-link {
    padding: var(--space-3) var(--space-4);
  }

  .content-area {
    padding: var(--space-4);
  }

  .checklist-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .header {
    padding: var(--space-4);
  }

  .header-title {
    font-size: var(--font-size-xl);
  }
}

/* Login Page Styles */
.login-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-gray-50);
  padding: var(--space-6);
}

.login-card {
  background: white;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--space-8);
  width: 100%;
  max-width: 400px;
  text-align: center;
  position: relative;
}

.login-back {
  position: absolute;
  top: var(--space-6);
  left: var(--space-6);
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.login-back:hover {
  color: var(--color-primary);
}

.login-logo {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--color-gray-900);
  margin-bottom: var(--space-2);
}

.login-subtitle {
  color: var(--color-gray-600);
  margin-bottom: var(--space-8);
}

.google-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  width: 100%;
  padding: var(--space-4);
  border: var(--border-width) solid var(--color-gray-300);
  border-radius: var(--border-radius);
  background: white;
  color: var(--color-gray-700);
  text-decoration: none;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.google-btn:hover {
  background: var(--color-gray-50);
  border-color: var(--color-gray-400);
}

.google-icon {
  width: 20px;
  height: 20px;
}

/* Animation for smooth interactions */
@media (prefers-reduced-motion: no-preference) {
  .card,
  .btn,
  .input,
  .nav-link {
    transition: all var(--transition-fast);
  }
  
  .checklist-card:hover {
    transform: translateY(-2px);
  }
}

/* Loading Screen */
.loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-gray-50);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-gray-200);
  border-top: 3px solid var(--color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: var(--space-4);
}

.loading-text {
  color: var(--color-gray-600);
  font-size: var(--font-size-sm);
}

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

.app-loading .loading-screen {
  display: flex;
}

.app-ready .loading-screen {
  display: none;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --color-gray-200: #c0c0c0;
    --color-gray-300: #a0a0a0;
    --shadow: none;
    --shadow-sm: none;
    --shadow-md: none;
    --shadow-lg: none;
  }
  
  .card,
  .checklist-card {
    border-width: 2px;
  }
}

/* Homepage Styles */
.homepage {
  min-height: 100vh;
  background: white;
}

/* Header */
.homepage-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-gray-200);
  padding: var(--space-4) 0;
}

.homepage-nav {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.homepage-logo {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-gray-900);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.homepage-logo:hover {
  color: var(--color-primary);
}

.homepage-auth-btn {
  padding: var(--space-2) var(--space-4);
  background: var(--color-gray-900);
  color: white;
  border: none;
  border-radius: var(--border-radius);
  font-size: var(--font-size-sm);
  font-weight: 500;
  text-decoration: none;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.homepage-auth-btn:hover {
  background: var(--color-gray-700);
  transform: translateY(-1px);
}

/* Hero Section */
.hero {
  padding: var(--space-16) var(--space-6) var(--space-12);
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero-title {
  font-size: var(--font-size-5xl);
  font-weight: 700;
  color: var(--color-gray-900);
  margin-bottom: var(--space-6);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: var(--font-size-xl);
  color: var(--color-gray-600);
  margin-bottom: var(--space-8);
  line-height: 1.4;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
}

.cta-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-6);
  background: var(--color-primary);
  color: white;
  border: none;
  border-radius: var(--border-radius);
  font-size: var(--font-size-lg);
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition-fast);
  cursor: pointer;
  box-shadow: var(--shadow-sm);
}

.cta-primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.cta-secondary {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
}

/* Features Section */
.features {
  padding: var(--space-16) var(--space-6);
  background: var(--color-gray-50);
}

.features-container {
  max-width: 1200px;
  margin: 0 auto;
}

.features-header {
  text-align: center;
  margin-bottom: var(--space-12);
}

.features-title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--color-gray-900);
  margin-bottom: var(--space-4);
}

.features-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-gray-600);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--space-8);
}

.feature-card {
  background: white;
  padding: var(--space-8);
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--color-gray-200);
  transition: all var(--transition-normal);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-gray-300);
}

.feature-icon {
  width: 48px;
  height: 48px;
  background: var(--color-primary-light);
  border-radius: var(--border-radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-4);
}

.feature-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-gray-900);
  margin-bottom: var(--space-3);
}

.feature-description {
  color: var(--color-gray-600);
  line-height: 1.6;
}

/* CTA Section */
.cta-section {
  padding: var(--space-16) var(--space-6);
  background: white;
  text-align: center;
}

.cta-container {
  max-width: 600px;
  margin: 0 auto;
}

.cta-title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--color-gray-900);
  margin-bottom: var(--space-4);
}

.cta-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-gray-600);
  margin-bottom: var(--space-8);
}

/* Footer */
.homepage-footer {
  padding: var(--space-8) var(--space-6);
  background: var(--color-gray-50);
  border-top: 1px solid var(--color-gray-200);
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

.footer-text {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  margin-bottom: var(--space-4);
}

.footer-links {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-6);
  flex-wrap: wrap;
}

.footer-link {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--color-primary);
}

/* Responsive Design for Homepage */
@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  }
}

@media (max-width: 768px) {
  .homepage-nav {
    padding: 0 var(--space-4);
  }
  
  .hero {
    padding: var(--space-12) var(--space-4) var(--space-8);
  }
  
  .hero-title {
    font-size: var(--font-size-3xl);
  }
  
  .hero-subtitle {
    font-size: var(--font-size-lg);
  }
  
  .features {
    padding: var(--space-12) var(--space-4);
  }
  
  .features-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
  
  .feature-card {
    padding: var(--space-6);
  }
  
  .cta-section {
    padding: var(--space-12) var(--space-4);
  }
  
  .cta-title {
    font-size: var(--font-size-2xl);
  }
  
  .footer-links {
    flex-direction: column;
    gap: var(--space-3);
  }
}

@media (max-width: 480px) {
  .homepage-header {
    padding: var(--space-3) 0;
  }
  
  .homepage-nav {
    padding: 0 var(--space-3);
  }
  
  .homepage-logo {
    font-size: var(--font-size-lg);
  }
  
  .homepage-auth-btn {
    padding: var(--space-1) var(--space-3);
    font-size: var(--font-size-xs);
  }
  
  .hero {
    padding: var(--space-8) var(--space-3) var(--space-6);
  }
  
  .hero-title {
    font-size: var(--font-size-2xl);
    line-height: 1.2;
  }
  
  .hero-subtitle {
    font-size: var(--font-size-base);
  }
  
  .cta-primary {
    padding: var(--space-3) var(--space-4);
    font-size: var(--font-size-base);
  }
  
  .features {
    padding: var(--space-8) var(--space-3);
  }
  
  .features-title {
    font-size: var(--font-size-2xl);
  }
  
  .features-subtitle {
    font-size: var(--font-size-base);
  }
  
  .feature-card {
    padding: var(--space-4);
  }
  
  .feature-icon {
    width: 40px;
    height: 40px;
    font-size: var(--font-size-xl);
  }
  
  .feature-title {
    font-size: var(--font-size-lg);
  }
  
  .cta-section {
    padding: var(--space-8) var(--space-3);
  }
  
  .cta-title {
    font-size: var(--font-size-xl);
  }
  
  .cta-subtitle {
    font-size: var(--font-size-base);
  }
  
  .homepage-footer {
    padding: var(--space-6) var(--space-3);
  }
}

/* Touch improvements */
@media (hover: none) and (pointer: coarse) {
  .cta-primary,
  .homepage-auth-btn,
  .feature-card {
    transform: none;
  }
  
  .cta-primary:hover,
  .homepage-auth-btn:hover,
  .feature-card:hover {
    transform: none;
  }
  
  .cta-primary:active {
    transform: scale(0.98);
  }
  
  .homepage-auth-btn:active {
    transform: scale(0.95);
  }
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

.animate-delay-1 {
  animation-delay: 0.1s;
  animation-fill-mode: both;
}

.animate-delay-2 {
  animation-delay: 0.2s;
  animation-fill-mode: both;
}

.animate-delay-3 {
  animation-delay: 0.3s;
  animation-fill-mode: both;
}

/* Modal Styles */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: var(--space-4);
}

.modal {
  background: white;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  max-width: 500px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  animation: modalFadeIn 0.2s ease-out;
}

.modal-header {
  padding: var(--space-6);
  border-bottom: var(--border-width) solid var(--color-gray-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-gray-900);
  margin: 0;
}

.modal-close {
  background: none;
  border: none;
  font-size: var(--font-size-xl);
  color: var(--color-gray-500);
  cursor: pointer;
  padding: var(--space-2);
  border-radius: var(--border-radius);
  transition: var(--transition-fast);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-close:hover {
  background: var(--color-gray-100);
  color: var(--color-gray-700);
}

.modal-body {
  padding: var(--space-6);
}

.modal-footer {
  padding: var(--space-6);
  border-top: var(--border-width) solid var(--color-gray-200);
  display: flex;
  gap: var(--space-3);
  justify-content: flex-end;
}

.form-group {
  margin-bottom: var(--space-4);
}

.label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-gray-700);
  margin-bottom: var(--space-2);
}

.input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: var(--border-width) solid var(--color-gray-300);
  border-radius: var(--border-radius);
  font-size: var(--font-size-base);
  transition: var(--transition-fast);
  background: white;
}

.input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.textarea {
  min-height: 80px;
  resize: vertical;
  font-family: inherit;
}

@keyframes modalFadeIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Mobile modal adjustments */
@media (max-width: 767px) {
  .modal {
    margin: var(--space-4);
    max-width: calc(100% - 2rem);
  }
  
  .modal-header,
  .modal-body,
  .modal-footer {
    padding: var(--space-4);
  }
  
  .modal-footer {
    flex-direction: column-reverse;
  }
  
  .modal-footer .btn {
    width: 100%;
  }
}