/* Knight Logics Project Management System Styles */

:root {
  /* Color Palette - Professional Green/Dark Theme */
  --primary-color: #27ae60;
  --primary-dark: #1e7e4b;
  --secondary-color: #2ecc71;
  --accent-color: #f39c12;
  --success-color: #27ae60;
  --warning-color: #f39c12;
  --error-color: #e74c3c;
  --info-color: #3498db;
  
  /* Background Colors */
  --bg-primary: #1a1a1a;
  --bg-secondary: #2d2d2d;
  --bg-tertiary: #3d3d3d;
  --bg-card: #404040;
  --bg-hover: #4a4a4a;
  
  /* Text Colors */
  --text-primary: #ffffff;
  --text-secondary: #b3b3b3;
  --text-muted: #808080;
  --text-inverse: #1a1a1a;
  
  /* Border and Shadow */
  --border-color: #555555;
  --border-light: #666666;
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.5);
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-xxl: 3rem;
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  
  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  
  /* Transitions */
  --transition-fast: 0.15s ease-in-out;
  --transition-base: 0.3s ease-in-out;
  --transition-slow: 0.5s ease-in-out;
  
  /* Z-index */
  --z-dropdown: 1000;
  --z-modal: 1050;
  --z-tooltip: 1070;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  overflow-x: hidden;
}

/* Loading Screen */
.loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity var(--transition-slow);
}

.loading-screen.hidden {
  opacity: 0;
  pointer-events: none;
}

.loading-container {
  text-align: center;
  animation: fadeInUp 1s ease-out;
}

.loading-logo {
  font-size: 4rem;
  color: var(--primary-color);
  margin-bottom: var(--spacing-lg);
  animation: pulse 2s infinite;
}

.loading-text h2 {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
}

.loading-text p {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xl);
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border-color);
  border-top: 3px solid var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto;
}

/* App Container */
.app-container {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  opacity: 0;
  transform: translateY(20px);
  transition: all var(--transition-slow);
}

.app-container.loaded {
  opacity: 1;
  transform: translateY(0);
}

/* Header Styles */
.app-header {
  height: 70px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--spacing-lg);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
}

.header-left .logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--primary-color);
}

.header-left .logo i {
  font-size: 1.5em;
}

.header-center {
  flex: 1;
  max-width: 500px;
  margin: 0 var(--spacing-xl);
}

.search-container {
  position: relative;
  width: 100%;
}

.search-container i {
  position: absolute;
  left: var(--spacing-md);
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
}

.search-container input {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md) var(--spacing-sm) 2.5rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  transition: all var(--transition-fast);
}

.search-container input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(39, 174, 96, 0.1);
}

.header-right {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.header-btn {
  position: relative;
  padding: var(--spacing-sm);
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.notification-badge {
  position: absolute;
  top: -5px;
  right: -5px;
  background: var(--error-color);
  color: white;
  font-size: var(--font-size-xs);
  padding: 2px 6px;
  border-radius: 10px;
  min-width: 18px;
  text-align: center;
}

.user-profile {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.user-profile:hover {
  background: var(--bg-hover);
}

.user-avatar {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  color: white;
  font-size: var(--font-size-sm);
}

.user-info {
  display: flex;
  flex-direction: column;
}

.user-name {
  font-weight: 600;
  font-size: var(--font-size-sm);
  color: var(--text-primary);
}

.user-role {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
}

/* Main Content */
.main-content {
  display: flex;
  flex: 1;
  min-height: calc(100vh - 70px);
}

/* Sidebar */
.sidebar {
  width: 280px;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  padding: var(--spacing-lg);
  overflow-y: auto;
}

.nav-menu ul {
  list-style: none;
  margin-bottom: var(--spacing-xl);
}

.nav-item {
  margin-bottom: var(--spacing-xs);
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  font-weight: 500;
}

.nav-link:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.nav-item.active .nav-link {
  background: rgba(39, 174, 96, 0.1);
  color: var(--primary-color);
  border-left: 3px solid var(--primary-color);
}

.nav-link i {
  width: 18px;
  font-size: var(--font-size-base);
}

/* Quick Actions */
.quick-actions {
  margin-top: var(--spacing-xl);
}

.quick-actions h3 {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.quick-action-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  margin-bottom: var(--spacing-sm);
  font-size: var(--font-size-sm);
}

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

/* Content Area */
.content-area {
  flex: 1;
  padding: var(--spacing-xl);
  background: var(--bg-primary);
  overflow-y: auto;
}

.content-section {
  display: none;
}

.content-section.active {
  display: block;
  animation: fadeIn var(--transition-base);
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--spacing-xl);
}

.section-header h1 {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.section-header p {
  color: var(--text-secondary);
  font-size: var(--font-size-lg);
}

.section-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

/* Statistics Cards */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.stat-card {
  background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-tertiary) 100%);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

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

.stat-icon {
  width: 60px;
  height: 60px;
  background: rgba(39, 174, 96, 0.1);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-color);
  font-size: 1.5rem;
}

.stat-content {
  flex: 1;
}

.stat-value {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: var(--spacing-xs);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  font-weight: 500;
}

/* Dashboard Grid */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: var(--spacing-lg);
}

.dashboard-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-fast);
}

.dashboard-card:hover {
  box-shadow: var(--shadow-md);
}

.dashboard-card.wide {
  grid-column: 1 / -1;
}

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

.card-header h3 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
}

.card-action, .card-link {
  padding: var(--spacing-xs);
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  text-decoration: none;
  font-size: var(--font-size-sm);
}

.card-action:hover, .card-link:hover {
  background: var(--bg-hover);
  color: var(--primary-color);
}

.card-content {
  padding: var(--spacing-lg);
}

/* Activities List */
.activities-list {
  max-height: 300px;
  overflow-y: auto;
}

.activity-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--border-color);
}

.activity-item:last-child {
  border-bottom: none;
}

.activity-info {
  flex: 1;
}

.activity-title {
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.activity-details {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.activity-time {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

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

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

.btn-outline {
  background: transparent;
  color: var(--text-secondary);
  border-color: var(--border-color);
}

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

.btn-sm {
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: var(--font-size-xs);
}

/* View Toggle */
.view-toggle {
  display: flex;
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  padding: var(--spacing-xs);
  border: 1px solid var(--border-color);
}

.view-btn {
  padding: var(--spacing-xs) var(--spacing-sm);
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.view-btn.active, .view-btn:hover {
  background: var(--primary-color);
  color: white;
}

/* Filters Bar */
.filters-bar {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  align-items: center;
  flex-wrap: wrap;
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.filter-select, .filter-search {
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: var(--font-size-sm);
}

.filter-search {
  min-width: 200px;
}

/* Projects Grid */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: var(--spacing-lg);
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.project-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-color);
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--spacing-md);
}

.project-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.project-status {
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: 500;
  text-transform: uppercase;
}

.project-status.planning { background: rgba(52, 152, 219, 0.2); color: #3498db; }
.project-status.active { background: rgba(39, 174, 96, 0.2); color: var(--success-color); }
.project-status.on-hold { background: rgba(243, 156, 18, 0.2); color: var(--warning-color); }
.project-status.completed { background: rgba(46, 204, 113, 0.2); color: var(--secondary-color); }

/* Kanban Board */
.kanban-board {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  min-height: 600px;
}

.kanban-column {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.column-header {
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.column-header h3 {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--text-primary);
}

.task-count {
  background: var(--primary-color);
  color: white;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: 600;
}

.column-content {
  padding: var(--spacing-md);
  min-height: 400px;
}

.task-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  cursor: grab;
  transition: all var(--transition-fast);
}

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

.task-card.dragging {
  opacity: 0.5;
  transform: rotate(5deg);
}

/* Calendar */
.calendar-nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.calendar-nav h3 {
  margin: 0;
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--text-primary);
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 1px;
  background: var(--border-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-top: var(--spacing-lg);
}

.calendar-day {
  background: var(--bg-card);
  padding: var(--spacing-sm);
  min-height: 100px;
  border: none;
  transition: background-color var(--transition-fast);
}

.calendar-day:hover {
  background: var(--bg-hover);
}

.calendar-day.today {
  background: rgba(39, 174, 96, 0.1);
}

.calendar-day.other-month {
  background: var(--bg-secondary);
  color: var(--text-muted);
}

/* Team Grid */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.team-member {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  text-align: center;
  transition: all var(--transition-fast);
}

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

.member-avatar {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: white;
  margin: 0 auto var(--spacing-md);
}

/* Time Tracking */
.current-timer {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
  text-align: center;
}

.timer-display {
  margin-bottom: var(--spacing-lg);
}

.timer-time {
  font-size: 3rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: var(--spacing-sm);
}

.timer-task {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
}

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

.timer-btn {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  border: 2px solid var(--primary-color);
  background: transparent;
  color: var(--primary-color);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-lg);
}

.timer-btn:hover:not(:disabled) {
  background: var(--primary-color);
  color: white;
}

.timer-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* KPI Grid */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.kpi-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  text-align: center;
}

.kpi-value {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: var(--spacing-sm);
}

.kpi-label {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

/* Reports Grid */
.reports-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: var(--spacing-lg);
}

.report-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.report-card.wide {
  grid-column: 1 / -1;
}

/* Modal Styles */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.modal.show {
  opacity: 1;
}

.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  cursor: pointer;
}

.modal-content {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  max-width: 500px;
  width: 90%;
  max-height: 80vh;
  overflow-y: auto;
  position: relative;
  transform: translateY(20px);
  transition: transform var(--transition-base);
}

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

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

.modal-header h3 {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--text-primary);
}

.modal-close {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: var(--spacing-xs);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.modal-body {
  padding: var(--spacing-lg);
}

/* Form Styles */
.form-group {
  margin-bottom: var(--spacing-md);
}

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

.form-group label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 500;
  color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(39, 174, 96, 0.1);
}

.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

/* Toast Notifications */
.toast {
  position: fixed;
  top: 20px;
  right: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  max-width: 400px;
  z-index: var(--z-tooltip);
  transform: translateX(100%);
  transition: transform var(--transition-base);
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
}

.toast.show {
  transform: translateX(0);
}

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

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

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

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

.toast-content {
  flex: 1;
}

.toast-content strong {
  display: block;
  margin-bottom: var(--spacing-xs);
  color: var(--text-primary);
}

.toast-content p {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  margin: 0;
}

.toast-close {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: var(--spacing-xs);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.toast-close:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

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

/* Responsive Design */
@media (max-width: 1200px) {
  .dashboard-grid {
    grid-template-columns: 1fr;
  }
  
  .reports-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .sidebar {
    width: 250px;
  }
  
  .header-center {
    margin: 0 var(--spacing-md);
  }
  
  .user-info {
    display: none;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .kanban-board {
    grid-template-columns: 1fr;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .app-header {
    padding: 0 var(--spacing-md);
  }
  
  .content-area {
    padding: var(--spacing-md);
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-md);
  }
  
  .filters-bar {
    flex-direction: column;
    align-items: stretch;
  }
  
  .projects-grid {
    grid-template-columns: 1fr;
  }
}