:root {
  --bg-primary: #0F172A;
  --bg-secondary: #1E293B;
  --bg-card: #334155;
  --text-primary: #F8FAFC;
  --text-secondary: #94A3B8;
  --accent: #3B82F6;
  --accent-hover: #2563EB;
  --success: #10B981;
  --warning: #F59E0B;
  --danger: #EF4444;
  --border: #475569;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
}

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

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
}

.hidden {
  display: none !important;
}

.notification-banner {
  background: var(--danger);
  color: white;
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.875rem;
}

.notification-banner i:first-child {
  font-size: 1.25rem;
}

.notification-banner button {
  background: transparent;
  border: none;
  color: white;
  cursor: pointer;
  margin-left: auto;
  font-size: 1rem;
}

/* Login */
.login-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.login-card {
  background: var(--bg-secondary);
  padding: 3rem;
  border-radius: 16px;
  text-align: center;
  box-shadow: var(--shadow);
  max-width: 400px;
  width: 90%;
}

.login-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.login-subtitle {
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.btn-google {
  background: white;
  color: #333;
  border: none;
  padding: 1rem 2rem;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  transition: transform 0.2s, box-shadow 0.2s;
  width: 100%;
  justify-content: center;
}

.btn-google:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.btn-google i {
  font-size: 1.25rem;
}

/* App Header */
.app-header {
  background: var(--bg-secondary);
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border);
}

.app-title {
  font-size: 1.5rem;
  font-weight: 700;
}

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

.user-name {
  color: var(--text-secondary);
}

.btn-icon {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 6px;
  transition: background 0.2s, color 0.2s;
}

.btn-icon:hover {
  background: var(--bg-card);
  color: var(--text-primary);
}

/* Sections */
.section {
  padding: 2rem;
}

.section-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.section-title {
  font-size: 1.25rem;
  font-weight: 600;
  flex: 1;
}

.btn-back {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 6px;
  transition: background 0.2s;
}

.btn-back:hover {
  background: var(--bg-card);
}

/* Buttons */
.btn-primary {
  background: var(--accent);
  color: white;
  border: none;
  padding: 0.75rem 1.25rem;
  border-radius: 8px;
  font-weight: 500;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: background 0.2s;
}

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

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: none;
  padding: 0.75rem 1.25rem;
  border-radius: 8px;
  font-weight: 500;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: background 0.2s;
}

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

.btn-danger {
  background: var(--danger);
  color: white;
  border: none;
  padding: 0.75rem 1.25rem;
  border-radius: 8px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s;
}

.btn-danger:hover {
  background: #DC2626;
}

.btn-cancel {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  padding: 0.75rem 1.25rem;
  border-radius: 8px;
  font-weight: 500;
  cursor: pointer;
}

.btn-cancel:hover {
  background: var(--bg-card);
}

/* Boards Grid */
.boards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  flex: 1;
}

.board-card {
  background: var(--bg-secondary);
  border-radius: 12px;
  border: 1px solid var(--border-color);
  padding: 1.5rem;
  cursor: grab;
}

.board-card:active {
  cursor: grabbing;
}

.board-card.board-dragging {
  opacity: 0.5;
}

.boards-layout {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
}

.header-actions {
  display: flex;
  gap: 0.75rem;
  margin-left: auto;
}

.team-panel {
  width: 280px;
  background: var(--bg-secondary);
  border-radius: 12px;
  padding: 1.25rem;
  flex-shrink: 0;
}

.team-panel h3 {
  font-size: 1rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.team-members-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.team-member {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem;
  border-radius: 8px;
  background: var(--bg-tertiary);
}

.team-member-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.875rem;
  color: white;
}

.team-member-info {
  flex: 1;
  min-width: 0;
}

.team-member-name {
  font-size: 0.875rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.team-member-email {
  font-size: 0.75rem;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.team-member-you {
  font-size: 0.625rem;
  background: var(--accent);
  color: white;
  padding: 0.125rem 0.375rem;
  border-radius: 4px;
}

.team-action-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 4px;
  font-size: 0.875rem;
}

.team-action-btn:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.team-action-btn.danger:hover {
  color: var(--danger);
}

.team-member {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem;
  border-radius: 8px;
  background: var(--bg-tertiary);
}

.team-member-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.875rem;
  color: white;
  flex-shrink: 0;
}

.board-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: var(--accent);
}

.board-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.board-header h3 {
  font-size: 1.125rem;
  margin: 0;
  flex: 1;
}

.board-status {
  font-size: 0.75rem;
  padding: 0.25rem 0.5rem;
  border-radius: 12px;
  font-weight: 500;
  white-space: nowrap;
}

.board-status.status-pending {
  background: #6B7280;
  color: white;
}

.board-status.status-progress {
  background: #F59E0B;
  color: white;
}

.board-status.status-done {
  background: #10B981;
  color: white;
}

.board-card h3 {
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
}

.board-card p {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.board-card .board-meta {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
  color: var(--text-secondary);
  font-size: 0.75rem;
}

.board-card .board-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
}

.board-card .btn-edit {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 4px;
}

.board-card .btn-edit:hover {
  background: var(--bg-tertiary);
  color: var(--accent);
}

.board-card .btn-delete {
  background: transparent;
  border: none;
  color: var(--danger);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 4px;
}

.board-card .btn-delete:hover {
  background: rgba(239, 68, 68, 0.1);
}

/* Kanban Board */
.kanban-board {
  display: flex;
  gap: 1.5rem;
  overflow-x: auto;
  padding-bottom: 1rem;
  min-height: 60vh;
}

.kanban-column {
  background: var(--bg-secondary);
  border-radius: 12px;
  min-width: 300px;
  max-width: 300px;
  display: flex;
  flex-direction: column;
}

.kanban-column:active {

.kanban-column.column-dragging {
  opacity: 0.5;
}

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

.column-title {
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.column-color {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.column-actions {
  display: flex;
  gap: 0.25rem;
}

.column-actions button {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 4px;
}

.column-actions button:hover {
  background: var(--bg-card);
  color: var(--text-primary);
}

.column-cards {
  padding: 1rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  overflow-y: auto;
  max-height: 70vh;
}

.column-cards.drag-over {
  background: rgba(59, 130, 246, 0.1);
}

.add-card-btn {
  background: transparent;
  border: 2px dashed var(--border);
  color: var(--text-secondary);
  padding: 0.75rem;
  border-radius: 8px;
  cursor: pointer;
  width: 100%;
  transition: border-color 0.2s, color 0.2s;
}

.add-card-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* Cards */
.kanban-card {
  background: var(--bg-card);
  border-radius: 8px;
  padding: 1rem;
  cursor: grab;
  transition: transform 0.2s, box-shadow 0.2s;
  position: relative;
  user-select: none;
}

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

.kanban-card.dragging {
  opacity: 0.5;
  cursor: grabbing;
}

.kanban-card .card-title {
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.kanban-card .card-desc {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-bottom: 0.75rem;
}

.kanban-card .card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.card-assignee {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.75rem;
  color: var(--accent);
  margin-bottom: 0.5rem;
  background: rgba(59, 130, 246, 0.1);
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  width: fit-content;
}

.card-tag-assignee {
  display: inline-flex;
  align-items: center;
  font-size: 0.75rem;
  font-weight: 500;
  color: white;
  background: linear-gradient(135deg, #6366F1, #8B5CF6);
  padding: 0.25rem 0.6rem;
  border-radius: 12px;
  margin-bottom: 0.5rem;
  cursor: pointer;
}

.tag-at {
  opacity: 0.7;
  margin-right: 2px;
}

.card-observations {
  display: flex;
  align-items: flex-start;
  gap: 0.25rem;
  font-size: 0.7rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  padding: 0.5rem;
  background: rgba(148, 163, 184, 0.1);
  border-radius: 4px;
  font-style: italic;
}

.card-priority {
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-size: 0.625rem;
  font-weight: 600;
  text-transform: uppercase;
}

.card-priority.high {
  background: rgba(239, 68, 68, 0.2);
  color: var(--danger);
}

.card-priority.medium {
  background: rgba(245, 158, 11, 0.2);
  color: var(--warning);
}

.card-priority.low {
  background: rgba(16, 185, 129, 0.2);
  color: var(--success);
}

.card-date {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.card-date.overdue {
  color: var(--danger);
}

.card-actions {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  display: flex;
  gap: 0.25rem;
  opacity: 0;
  transition: opacity 0.2s;
}

.kanban-card:hover .card-actions {
  opacity: 1;
}

.card-actions button {
  background: var(--bg-secondary);
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 4px;
  font-size: 0.75rem;
}

.card-actions button:hover {
  color: var(--text-primary);
}

.card-actions .btn-delete-card {
  color: var(--danger);
}

/* Modals */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal-content {
  background: var(--bg-secondary);
  padding: 2rem;
  border-radius: 12px;
  width: 90%;
  max-width: 400px;
}

.modal-title {
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
}

.modal form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.modal input,
.modal textarea,
.modal select {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 0.75rem;
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
}

.modal input:focus,
.modal textarea:focus,
.modal select:focus {
  outline: none;
  border-color: var(--accent);
}

.modal input[type="color"] {
  padding: 0.25rem;
  height: 40px;
}

.modal textarea {
  min-height: 100px;
  resize: vertical;
}

.form-row {
  display: flex;
  gap: 1rem;
}

.form-group {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.form-group label {
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.form-group select,
.form-group input {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 0.5rem;
  border-radius: 6px;
  font-size: 0.875rem;
}

.form-group select:focus,
.form-group input:focus {
  outline: none;
  border-color: var(--accent);
}

.checkbox-group {
  flex-direction: row;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
}

.modal-actions {
  display: flex;
  gap: 1rem;
  justify-content: flex-end;
  margin-top: 0.5rem;
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 3rem;
  color: var(--text-secondary);
}

.empty-state i {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.empty-state p {
  margin-bottom: 1.5rem;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-secondary);
}

/* Loading */
.loading {
  display: flex;
  justify-content: center;
  padding: 2rem;
  color: var(--text-secondary);
}

.loading i {
  font-size: 1.5rem;
  animation: spin 1s linear infinite;
}

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

/* Timeline */
.timeline-container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  overflow-x: auto;
  padding: 1rem 0;
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  padding: 0 1rem;
}

.timeline-filters {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.filter-select {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border);
  padding: 0.5rem 1rem;
  border-radius: 6px;
  font-size: 0.875rem;
  cursor: pointer;
}

.filter-select:focus {
  outline: none;
  border-color: var(--accent);
}

.timeline-grid {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  position: relative;
  min-height: 400px;
  padding-left: 0;
}

.timeline-today-line {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--accent);
  z-index: 10;
}

.timeline-today-label {
  position: absolute;
  top: -25px;
  left: -30px;
  background: var(--accent);
  color: white;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
}

.timeline-dates-row {
  display: flex;
  position: relative;
  height: 30px;
  border-bottom: 1px solid var(--border);
}

.timeline-date-marker {
  position: absolute;
  font-size: 0.7rem;
  color: var(--text-secondary);
  transform: translateX(-50%);
}

.today-marker {
  color: var(--accent) !important;
  font-weight: 700;
}

.timeline-row {
  display: flex;
  align-items: center;
  position: relative;
  height: 50px;
}

.timeline-task-label {
  position: absolute;
  left: -200px;
  width: 190px;
  text-align: right;
  padding-right: 10px;
  font-size: 0.875rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.timeline-bar {
  position: absolute;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  padding: 0 12px;
  font-size: 0.75rem;
  color: white;
  font-weight: 500;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  z-index: 5;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.timeline-bar:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow);
}

.timeline-bar.on-time {
  background: linear-gradient(135deg, #10B981, #059669);
}

.timeline-bar.pending {
  background: linear-gradient(135deg, #6B7280, #4B5563);
  opacity: 0.7;
}

.timeline-bar.approaching {
  background: linear-gradient(135deg, #F59E0B, #D97706);
}

.timeline-bar.overdue {
  background: linear-gradient(135deg, #EF4444, #DC2626);
}

.timeline-bar .bar-assignee {
  margin-left: auto;
  font-size: 0.65rem;
  opacity: 0.9;
}

.timeline-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4rem;
  color: var(--text-secondary);
}

.timeline-empty i {
  font-size: 3rem;
  margin-bottom: 1rem;
}

/* Timeline View Styles */
.timeline-container {
  position: relative;
  overflow-x: auto;
  padding: 1rem 0;
}

.timeline-header {
  display: flex;
  position: sticky;
  top: 0;
  background: var(--bg-secondary);
  z-index: 10;
  padding-left: 60px;
}

.timeline-day-header {
  min-width: 40px;
  text-align: center;
  padding: 0.5rem 0;
  font-size: 0.75rem;
  color: var(--text-secondary);
  border-right: 1px solid var(--border-color);
}

.timeline-day-header.today {
  background: var(--accent-color);
  color: white;
  font-weight: bold;
}

.today-line {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--accent-color);
  z-index: 5;
  pointer-events: none;
}

.today-label {
  position: absolute;
  top: -25px;
  transform: translateX(-50%);
  font-size: 0.75rem;
  font-weight: bold;
  color: var(--accent-color);
  white-space: nowrap;
}

.timeline-board {
  margin: 1rem 0;
  padding: 0.5rem;
  border-radius: 8px;
  background: var(--bg-tertiary);
}

.timeline-board h3 {
  margin: 0 0 0.5rem 60px;
  font-size: 1rem;
  color: var(--text-primary);
}

.timeline-card {
  position: absolute;
  height: 30px;
  border-radius: 4px;
  padding: 0.25rem 0.5rem;
  font-size: 0.8rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  margin-left: 60px;
  color: white;
  text-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

.timeline-card.on-time {
  background: #10B981;
}

.timeline-card.approaching {
  background: #F59E0B;
}

.timeline-card.overdue {
  background: #EF4444;
}

.timeline-card .card-assignee {
  font-size: 0.7rem;
  opacity: 0.9;
  margin-left: 0.5rem;
}

.timeline-card .card-title {
  overflow: hidden;
  text-overflow: ellipsis;
}

.timeline-card.extended {
  background-image: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 10px,
    rgba(255,255,255,0.15) 10px,
    rgba(255,255,255,0.15) 20px
  );
  border: 2px dashed rgba(255,255,255,0.5);
}

.timeline-card.extended .extension-badge {
  position: absolute;
  top: -8px;
  right: -8px;
  background: #EF4444;
  color: white;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: bold;
}

.no-data {
  text-align: center;
  padding: 2rem;
  color: var(--text-secondary);
}