/* Timely Styles */
:root {
  --color-primary: #3B82F6;
  --color-bg: #F9FAFB;
  --color-card: #FFFFFF;
  --color-text: #1F2937;
  --color-text-muted: #6B7280;
  --color-border: #E5E7EB;
  --color-anniversary: #E91E63;
  --color-birthday: #F59E0B;
  --color-countdown: #10B981;
  --color-today: #EF4444;
  --color-soon: #F59E0B;
  --color-past: #6B7280;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,0.1);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
  min-height: 100vh;
}

/* Login Screen */
.login-screen {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background: linear-gradient(135deg, var(--color-primary), #1d4ed8);
}

.login-box {
  background: var(--color-card);
  padding: 2.5rem;
  border-radius: 12px;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  width: 100%;
  max-width: 360px;
  text-align: center;
}

.login-box h1 {
  font-size: 2rem;
  color: var(--color-primary);
  margin-bottom: 0.25rem;
}

.login-subtitle {
  color: var(--color-text-muted);
  margin-bottom: 2rem;
  font-size: 0.875rem;
}

.login-box .form-group {
  margin-bottom: 1rem;
}

.login-box input {
  width: 100%;
  padding: 0.875rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 1rem;
  transition: border-color 0.2s;
}

.login-box input:focus {
  outline: none;
  border-color: var(--color-primary);
}

.login-error {
  color: #dc2626;
  margin-bottom: 1rem;
  font-size: 0.875rem;
}

.login-box .remember-me {
  text-align: left;
}

.login-box .remember-me label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 0;
}

.login-box .remember-me input[type="checkbox"] {
  width: auto;
  margin: 0;
}

.login-box .btn-save {
  margin-top: 0.5rem;
}

/* App Container */
.app-container {
  min-height: 100vh;
  overflow: visible;
}

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

.btn-logout {
  padding: 0.6rem 1.25rem;
  border: 1px solid var(--color-border);
  background: var(--color-card);
  color: var(--color-text-muted);
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 1rem;
  transition: all 0.2s;
}

.btn-logout:hover {
  background: var(--color-bg);
  color: var(--color-text);
}

/* Header */
.header {
  background: var(--color-card);
  padding: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-left {
  display: flex;
  align-items: baseline;
  gap: 1rem;
}

.header h1 {
  font-size: 1.5rem;
  color: var(--color-primary);
}

.header-subtitle {
  font-size: 1rem;
  color: var(--color-text-muted);
}

.view-switcher {
  display: flex;
  gap: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.view-switcher button {
  padding: 0.6rem 1.25rem;
  border: none;
  background: var(--color-card);
  border-right: 1px solid var(--color-border);
  border-radius: 0;
  cursor: pointer;
  transition: all 0.2s;
  font-size: 1rem;
}

.view-switcher button:last-child {
  border-right: none;
}

.view-switcher button:hover {
  background: var(--color-bg);
}

.view-switcher button.active {
  background: var(--color-primary);
  color: white;
}

/* Main */
.main {
  max-width: 100%;
  margin: 0 auto;
  padding: 1rem;
  overflow: visible;
}

/* Timeline View */
.timeline-view {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.milestone-card {
  background: var(--color-card);
  border-radius: var(--radius);
  padding: 1rem;
  border-left: 4px solid var(--color-primary);
  box-shadow: var(--shadow);
  transition: transform 0.2s;
}

.milestone-card:hover {
  transform: translateX(4px);
}

.card-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.card-icon {
  font-size: 1.25rem;
}

.card-name {
  font-weight: 600;
  font-size: 1.1rem;
}

.card-date {
  color: var(--color-text-muted);
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
}

.card-countdown {
  font-weight: 500;
}

.card-countdown.countdown-today {
  color: var(--color-today);
  font-weight: 700;
}

.card-countdown.countdown-soon {
  color: var(--color-soon);
}

.card-countdown.countdown-past {
  color: var(--color-past);
}

/* Next countdown urgency colors */
.card-item .card-countdown.countdown-urgent {
  color: #e74c3c;
  font-weight: 700;
  background: #fef2f2;
}

.card-item .card-countdown.countdown-soon {
  color: #f39c12;
  font-weight: 600;
  background: #fffbeb;
}

.card-item .card-countdown.countdown-approaching {
  color: #3498db;
  background: #eff6ff;
}

.countdown-urgent {
  color: #e74c3c !important;
  font-weight: 700;
}

.countdown-soon {
  color: #f39c12 !important;
  font-weight: 600;
}

.countdown-approaching {
  color: #3498db !important;
}

/* Table cell countdown styles */
.milestone-table td.countdown-urgent,
.milestone-table td.countdown-soon,
.milestone-table td.countdown-approaching {
  padding: 0.5rem;
  border-radius: 4px;
}

.milestone-table td.countdown-urgent {
  background: #fef2f2;
}

.milestone-table td.countdown-soon {
  background: #fffbeb;
}

.milestone-table td.countdown-approaching {
  background: #eff6ff;
}

.card-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.btn-edit, .btn-delete {
  padding: 0.375rem 0.75rem;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.875rem;
  transition: opacity 0.2s;
}

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

.btn-delete {
  background: #FEE2E2;
  color: #DC2626;
}

.btn-edit:hover, .btn-delete:hover {
  opacity: 0.8;
}

/* List View */
.list-view {
  background: var(--color-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.list-filter-buttons {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--color-border);
}

.list-filter-buttons button {
  padding: 0.6rem 1rem;
  border: none;
  background: var(--color-card);
  border-right: 1px solid var(--color-border);
  border-radius: 0;
  cursor: pointer;
  font-size: 0.9rem;
  transition: all 0.2s;
}

.list-filter-buttons button:last-child {
  border-right: none;
}

.list-filter-buttons button:hover {
  background: var(--color-bg);
}

.list-filter-buttons button.active {
  background: var(--color-primary);
  color: white;
}

.milestone-table {
  width: 100%;
  border-collapse: collapse;
}

.milestone-table th,
.milestone-table td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.milestone-table th {
  background: var(--color-bg);
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.milestone-table th.sortable {
  cursor: pointer;
  user-select: none;
}

.milestone-table th.sortable:hover {
  background: var(--color-border);
}

.sort-indicator {
  margin-left: 4px;
  color: var(--color-primary);
}

.milestone-table tr:hover {
  background: var(--color-bg);
}

.color-dot {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  margin-right: 0.5rem;
  vertical-align: middle;
}

/* FAB */
.fab {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-primary);
  color: white;
  font-size: 2rem;
  border: none;
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}

.fab:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 16px rgba(59, 130, 246, 0.5);
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  z-index: 100;
}

.modal {
  background: var(--color-card);
  border-radius: var(--radius);
  width: 100%;
  max-width: 400px;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

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

.modal-header h2 {
  font-size: 1.125rem;
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--color-text-muted);
}

.modal form {
  padding: 1rem;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: 0.5rem;
  font-size: 0.875rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-size: 1rem;
  font-family: inherit;
}

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

.color-picker {
  display: flex;
  gap: 0.5rem;
}

.type-buttons {
  display: flex;
  gap: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.type-buttons button {
  flex: 1;
  padding: 0.6rem 0.75rem;
  border: none;
  background: var(--color-card);
  color: var(--color-text-muted);
  cursor: pointer;
  font-size: 0.875rem;
  transition: all 0.2s;
  border-right: 1px solid var(--color-border);
}

.type-buttons button:last-child {
  border-right: none;
}

.type-buttons button:hover {
  background: var(--color-bg);
}

.type-buttons button.active {
  background: var(--color-primary);
  color: white;
}

.color-option {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.2s, border-color 0.2s;
}

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

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

.form-actions {
  display: flex;
  gap: 0.75rem;
  justify-content: flex-end;
  margin-top: 1.5rem;
}

.btn-cancel, .btn-save {
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 1rem;
  transition: opacity 0.2s;
}

.btn-cancel {
  background: var(--color-bg);
  color: var(--color-text);
}

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

.btn-cancel:hover, .btn-save:hover {
  opacity: 0.8;
}

.confirm-modal {
  padding: 1.5rem;
  text-align: center;
}

.confirm-modal p {
  margin-bottom: 1.5rem;
  font-size: 1rem;
}

/* Responsive */
@media (max-width: 640px) {
  .header {
    flex-direction: column;
    gap: 1rem;
  }

  .milestone-table th:nth-child(3),
  .milestone-table td:nth-child(3) {
    display: none;
  }

  .fab {
    bottom: 1.5rem;
    right: 1.5rem;
  }
}

/* ========================================
   Cards View Styles (Pinterest-like)
   ======================================== */

.cards-view {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem;
  box-sizing: border-box;
  min-height: calc(100vh - 150px);
}

.card-item {
  flex: 1 1 calc(25% - 1rem);
  min-width: 200px;
  max-width: calc(25% - 1rem);
  background: var(--color-card);
  border-radius: var(--radius);
  border-top-style: solid;
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: transform 0.2s ease-out, box-shadow 0.2s ease-out;
  -webkit-transform: translateZ(0);
  transform: translateZ(0);
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  will-change: transform;
  contain: layout style;
  position: relative;
}

.card-item:hover {
  transform: translateZ(0) translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  z-index: 10;
}

.card-content {
  padding: 1rem;
}

.card-icon {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.card-name {
  font-weight: 600;
  font-size: 1rem;
  margin-bottom: 0.25rem;
  word-wrap: break-word;
}

.card-date {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
}

.card-countdown-badge {
  position: absolute;
  top: 0;
  right: 0;
  background: var(--color-card);
  padding: 0.4rem 1rem;
  border-bottom-left-radius: 8px;
  font-weight: 800;
  font-size: 0.85rem;
  box-shadow: -2px 2px 8px rgba(0, 0, 0, 0.15);
  z-index: 2;
}

.card-countdown-badge.countdown-urgent {
  color: #c0392b;
  background: #fdecea;
  font-size: 1.5rem;
  padding: 0.6rem 1.5rem;
  font-weight: 900;
  border-bottom-left-radius: 12px;
}

.card-countdown-badge.countdown-soon {
  color: #d68910;
  background: #fef5e7;
  font-size: 1.2rem;
  padding: 0.5rem 1.3rem;
  font-weight: 800;
}

.card-countdown-badge.countdown-approaching {
  color: #2980b9;
  background: #ebf5fb;
  font-size: 1rem;
  padding: 0.45rem 1.1rem;
}

.card-countdown {
  font-weight: 500;
  font-size: 0.875rem;
  margin-bottom: 0.75rem;
}

.card-actions {
  display: flex;
  gap: 0.5rem;
}

.card-actions .btn-edit,
.card-actions .btn-delete {
  padding: 0.375rem 0.75rem;
  font-size: 0.75rem;
}

/* Card sizes based on urgency - larger cards get bigger fonts */
.card-item.card-size-xlarge .card-icon {
  font-size: 3rem;
}

.card-item.card-size-xlarge .card-name {
  font-size: 1.25rem;
}

.card-item.card-size-xlarge .card-countdown-badge {
  font-size: 1.5rem;
  padding: 0.7rem 1.8rem;
}

.card-item.card-size-large .card-icon {
  font-size: 2.5rem;
}

.card-item.card-size-large .card-name {
  font-size: 1.1rem;
}

.card-item.card-size-large .card-countdown-badge {
  font-size: 1.2rem;
  padding: 0.55rem 1.3rem;
}

.card-item.card-size-small .card-content {
  padding: 0.75rem;
}

.card-item.card-size-small .card-icon {
  font-size: 1.5rem;
}

.card-item.card-size-small .card-name {
  font-size: 0.875rem;
}

.card-item.card-size-small .card-countdown-badge {
  font-size: 0.85rem;
  padding: 0.3rem 0.7rem;
}

.card-item.card-size-small .card-countdown-badge.countdown-urgent {
  font-size: 1.1rem;
  padding: 0.4rem 1rem;
}

.card-item.card-size-small .card-countdown-badge.countdown-soon {
  font-size: 0.95rem;
  padding: 0.35rem 0.85rem;
}

.card-item.card-size-small .card-countdown-badge.countdown-approaching {
  font-size: 0.9rem;
  padding: 0.3rem 0.75rem;
}

.card-item.card-size-small .card-actions {
  display: none;
}

.card-item.card-size-xsmall .card-content {
  padding: 0.5rem;
}

.card-item.card-size-xsmall .card-icon {
  font-size: 1.25rem;
}

.card-item.card-size-xsmall .card-name {
  font-size: 0.75rem;
}

.card-item.card-size-xsmall .card-date,
.card-item.card-size-xsmall .card-actions {
  display: none;
}

.card-item.card-size-xsmall .card-countdown-badge {
  font-size: 0.7rem;
  padding: 0.25rem 0.6rem;
}

.card-item.card-size-xsmall .card-countdown-badge.countdown-urgent {
  font-size: 1rem;
  padding: 0.35rem 0.8rem;
}

.card-item.card-size-xsmall .card-countdown-badge.countdown-soon {
  font-size: 0.85rem;
  padding: 0.3rem 0.7rem;
}

.card-item.card-size-xsmall .card-countdown-badge.countdown-approaching {
  font-size: 0.78rem;
  padding: 0.25rem 0.65rem;
}

/* Mobile responsive for cards */
@media (max-width: 1200px) {
  .card-item {
    flex: 1 1 calc(33.33% - 1rem);
    max-width: calc(33.33% - 1rem);
  }
}

@media (max-width: 900px) {
  .card-item {
    flex: 1 1 calc(50% - 1rem);
    max-width: calc(50% - 1rem);
  }
}

@media (max-width: 640px) {
  .cards-view {
    padding: 0.5rem;
  }

  .card-item {
    flex: 1 1 calc(50% - 0.5rem);
    max-width: calc(50% - 0.5rem);
    min-width: 150px;
  }
}

/* ========================================
   Timeline View Styles (vis-timeline)
   ======================================== */

.timeline-container {
  height: calc(100vh - 120px);
  background: var(--color-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: visible;
  display: flex;
  flex-direction: column;
}

.timeline-header {
  padding: 0.5rem 1rem;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
}

.timeline-mode-switcher {
  display: flex;
  gap: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.timeline-mode-switcher button {
  padding: 0.5rem 1.25rem;
  border: none;
  background: var(--color-bg);
  color: var(--color-text-muted);
  cursor: pointer;
  font-size: 1rem;
  transition: all 0.2s;
}

.timeline-mode-switcher button:first-child {
  border-right: 1px solid var(--color-border);
}

.timeline-mode-switcher button.active {
  background: var(--color-primary);
  color: white;
}

.timeline-nav {
  display: flex;
  gap: 0.25rem;
  margin-left: auto;
}

.btn-nav {
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--color-border);
  background: var(--color-card);
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 0.875rem;
  transition: all 0.2s;
}

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

#vis-timeline {
  width: 100%;
  flex: 1;
}

/* Current time line tooltip */
.vis-time-axis .vis-foreground .vis-major .vis-text {
  position: relative;
}

.vis-panel.vis-center .vis-minor,
.vis-panel.vis-center .vis-major {
  pointer-events: auto;
}

.vis-current-time {
  background-color: #ef4444 !important;
  z-index: 1000;
  position: relative;
}

.vis-current-time::after {
  content: 'Today';
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  background: #ef4444;
  color: white;
  padding: 4px 12px;
  border-radius: 4px;
  font-size: 0.8rem;
  white-space: nowrap;
  pointer-events: none;
  font-weight: 600;
  box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

/* Vis-timeline custom styles */
.vis-item.vis-item-milestone {
  border: none !important;
  background: transparent !important;
}

.vis-item-content {
  display: inline !important;
  background: transparent !important;
}

.vis-item.vis-box .vis-item-content,
.vis-item.vis-point .vis-item-content {
  position: relative !important;
}

.vis-item.vis-selected {
  box-shadow: 0 0 0 3px var(--color-primary);
}

.vis-item.vis-box {
  border-left: none !important;
}

.vis-item.vis-box .vis-item-content {
  margin-left: 0 !important;
  left: 0 !important;
}

/* Timeline urgency styles */
.timeline-urgent {
  background: #fef2f2 !important;
}

.timeline-urgent .vis-item-content span,
.timeline-urgent.vis-item .vis-item-content span {
  border-left: 4px solid #e74c3c !important;
}

.timeline-soon {
  background: #fffbeb !important;
}

.timeline-soon .vis-item-content span,
.timeline-soon.vis-item .vis-item-content span {
  border-left: 4px solid #f39c12 !important;
}

.timeline-approaching {
  background: #eff6ff !important;
}

.timeline-approaching .vis-item-content span,
.timeline-approaching.vis-item .vis-item-content span {
  border-left: 4px solid #3498db !important;
}

/* Fix popup/detail view on selection */
.vis-item.vis-selected .vis-item-content {
  color: white !important;
}

.vis-overlay {
  background: var(--color-card) !important;
  border-radius: var(--radius) !important;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15) !important;
  padding: 0.5rem !important;
}

/* Override all possible selectors for popup text color */
.vis-overlay,
.vis-overlay * {
  color: #000 !important;
  background: transparent !important;
}

.vis-popup,
.vis-popup *,
.vis-item.vis-selected,
.vis-item.vis-selected * {
  color: #000 !important;
  background: transparent !important;
}

.vis-time-axis .vis-text {
  color: var(--color-text-muted);
}

.vis-current-time {
  background-color: var(--color-today) !important;
}

/* Mobile responsive */
@media (max-width: 640px) {
  .timeline-container {
    height: calc(100vh - 180px);
  }

  .vis-item-content {
    font-size: 0.75rem;
    padding: 2px 6px;
  }
}