:root {
  --bg-color: #0A0A0A;
  --surface-color: #111111;
  --surface-hover: #1A1A1A;
  --border-color: #222222;
  --border-focus: #444444;
  --text-primary: #F5F5F5;
  --text-secondary: #9F9F9F;
  --text-muted: #555555;
  --accent-color: #6366F1;
  --accent-hover: #4F46E5;
  --accent-alpha: rgba(99, 102, 241, 0.15);
  
  --success-color: #10B981;
  --success-alpha: rgba(16, 185, 129, 0.1);
  --warning-color: #F59E0B;
  --warning-alpha: rgba(245, 158, 11, 0.1);
  --danger-color: #EF4444;
  --danger-alpha: rgba(239, 68, 68, 0.1);
  --info-color: #3B82F6;
  --info-alpha: rgba(59, 130, 246, 0.1);

  --sidebar-width: 260px;
  --header-height: 64px;
  --font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-logo: 'Outfit', sans-serif;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --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);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.15), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* Reset */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  scrollbar-width: thin;
  scrollbar-color: var(--border-color) transparent;
}

body {
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-family: var(--font-family);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  display: flex;
  overflow-x: hidden;
}

/* Layout */
.app-layout {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
  grid-template-rows: var(--header-height) 1fr;
  grid-template-areas: 
    "sidebar header"
    "sidebar main";
  width: 100vw;
  height: 100vh;
}

/* Sidebar */
.app-sidebar {
  grid-area: sidebar;
  background-color: var(--surface-color);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 1.5rem 1rem;
}

.sidebar-logo {
  font-family: var(--font-logo);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 2rem;
  text-decoration: none;
  letter-spacing: -0.02em;
}

.sidebar-logo span {
  color: var(--accent-color);
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  flex-grow: 1;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 500;
  transition: all 0.2s ease;
}

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

.nav-link.active {
  background-color: var(--accent-alpha);
  color: var(--accent-color);
}

.sidebar-footer {
  border-top: 1px solid var(--border-color);
  padding-top: 1rem;
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.user-profile-summary {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem;
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--accent-color);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.95rem;
}

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

.user-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-role {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: capitalize;
}

.logout-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem;
  color: var(--danger-color);
  text-decoration: none;
  font-size: 0.85rem;
  border-radius: 6px;
  transition: background-color 0.2s ease;
}

.logout-link:hover {
  background-color: rgba(239, 68, 68, 0.1);
}

/* Header */
.app-header {
  grid-area: header;
  background-color: var(--bg-color);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  height: var(--header-height);
}

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

.page-title {
  font-size: 1.25rem;
  font-weight: 600;
  font-family: var(--font-family);
}

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

/* Active Timer Panel in Header */
.global-timer-widget {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  font-size: 0.85rem;
}

.timer-dot {
  width: 8px;
  height: 8px;
  background-color: var(--danger-color);
  border-radius: 50%;
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.9); opacity: 0.5; }
  50% { transform: scale(1.1); opacity: 1; }
  100% { transform: scale(0.9); opacity: 0.5; }
}

.timer-display {
  font-family: monospace;
  font-weight: 600;
  color: var(--text-primary);
}

.timer-description {
  color: var(--text-secondary);
  max-width: 140px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.timer-stop-btn {
  background-color: rgba(239, 68, 68, 0.15);
  color: var(--danger-color);
  border: 1px solid rgba(239, 68, 68, 0.3);
  padding: 0.25rem 0.6rem;
  border-radius: 9999px;
  cursor: pointer;
  font-size: 0.75rem;
  font-weight: 600;
  transition: all 0.2s ease;
}

.timer-stop-btn:hover {
  background-color: var(--danger-color);
  color: white;
}

/* Main Content Area */
.app-main {
  grid-area: main;
  overflow-y: auto;
  padding: 2rem;
}

/* Base Styles & Components */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  font-family: var(--font-family);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

p {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.6rem 1.2rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid transparent;
  outline: none;
}

.btn:active {
  transform: scale(0.98);
}

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

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

.btn-secondary {
  background-color: var(--surface-color);
  border-color: var(--border-color);
  color: var(--text-primary);
}

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

.btn-danger {
  background-color: var(--danger-alpha);
  border-color: rgba(239, 68, 68, 0.2);
  color: var(--danger-color);
}

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

.btn-success {
  background-color: var(--success-alpha);
  border-color: rgba(16, 185, 129, 0.2);
  color: var(--success-color);
}

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

.btn-sm {
  padding: 0.4rem 0.8rem;
  font-size: 0.8rem;
  border-radius: 6px;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.6rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: capitalize;
  border: 1px solid transparent;
}

.badge-low { background-color: var(--success-alpha); color: var(--success-color); border-color: rgba(16, 185, 129, 0.2); }
.badge-medium { background-color: var(--warning-alpha); color: var(--warning-color); border-color: rgba(245, 158, 11, 0.2); }
.badge-high { background-color: var(--danger-alpha); color: var(--danger-color); border-color: rgba(239, 68, 68, 0.2); }
.badge-critical { background-color: #EF4444; color: white; }

.badge-backlog { background-color: var(--text-muted); color: var(--text-secondary); }
.badge-ready { background-color: var(--info-alpha); color: var(--info-color); border-color: rgba(59, 130, 246, 0.2); }
.badge-in_progress { background-color: var(--warning-alpha); color: var(--warning-color); border-color: rgba(245, 158, 11, 0.2); }
.badge-review { background-color: var(--accent-alpha); color: var(--accent-color); border-color: rgba(99, 102, 241, 0.2); }
.badge-done { background-color: var(--success-alpha); color: var(--success-color); border-color: rgba(16, 185, 129, 0.2); }

.badge-bug { background-color: rgba(239, 68, 68, 0.15); color: #EF4444; }
.badge-issue { background-color: rgba(59, 130, 246, 0.15); color: #3B82F6; }
.badge-support { background-color: rgba(16, 185, 129, 0.15); color: #10B981; }
.badge-tech_debt { background-color: rgba(245, 158, 11, 0.15); color: #F59E0B; }

.badge-planned { background-color: #333; color: var(--text-secondary); }
.badge-active { background-color: var(--success-alpha); color: var(--success-color); }
.badge-on_hold { background-color: var(--warning-alpha); color: var(--warning-color); }
.badge-completed { background-color: var(--info-alpha); color: var(--info-color); }
.badge-archived { background-color: #222; color: #777; }

/* Grid & Cards */
.grid {
  display: grid;
  gap: 1.5rem;
}

.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
  .grid-cols-3, .grid-cols-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .grid-cols-2, .grid-cols-3, .grid-cols-4 { grid-template-columns: 1fr; }
  .app-layout {
    grid-template-columns: 1fr;
    grid-template-areas: 
      "header"
      "main";
  }
  .app-sidebar {
    display: none; /* simple fallback or needs hamburger */
  }
}

.card {
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.card:hover {
  border-color: #333;
}

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

.card-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.card-body {
  color: var(--text-secondary);
}

/* Widgets Dashboard */
.widget-stat {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.widget-label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.widget-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  font-family: 'Outfit', sans-serif;
}

.widget-sub {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* Forms */
.form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  max-width: 600px;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.field-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.input, .textarea, .select {
  width: 100%;
  padding: 0.65rem 0.85rem;
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-primary);
  font-family: var(--font-family);
  font-size: 0.95rem;
  outline: none;
  transition: all 0.2s ease;
}

.input:focus, .textarea:focus, .select:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 2px var(--accent-alpha);
}

.textarea {
  min-height: 120px;
  resize: vertical;
}

/* Tables */
.table-container {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  background-color: var(--surface-color);
}

.table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.table th, .table td {
  padding: 1rem 1.25rem;
}

.table th {
  background-color: rgba(255, 255, 255, 0.02);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--border-color);
}

.table td {
  border-bottom: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.table tr:last-child td {
  border-bottom: none;
}

.table tr:hover td {
  background-color: rgba(255, 255, 255, 0.01);
  color: var(--text-primary);
}

.table-link {
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 500;
}

.table-link:hover {
  color: var(--accent-color);
}

/* Flash alerts in Main */
.flash-container {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.flash {
  padding: 0.9rem 1.25rem;
  border-radius: 8px;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.flash-notice {
  background-color: var(--success-alpha);
  border: 1px solid rgba(16, 185, 129, 0.2);
  color: var(--success-color);
}

.flash-alert {
  background-color: var(--danger-alpha);
  border: 1px solid rgba(239, 68, 68, 0.2);
  color: var(--danger-color);
}

/* Comments section */
.comments-section {
  margin-top: 3rem;
  border-top: 1px solid var(--border-color);
  padding-top: 2rem;
}

.comments-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.comment-card {
  background-color: rgba(255, 255, 255, 0.01);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1rem;
}

.comment-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
  font-size: 0.85rem;
}

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

.comment-date {
  color: var(--text-muted);
}

.comment-body {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Tabs */
.tabs {
  display: flex;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 1.5rem;
  gap: 1.5rem;
}

.tab-item {
  padding: 0.75rem 0.25rem;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  border-bottom: 2px solid transparent;
  transition: all 0.2s ease;
}

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

.tab-item.active {
  color: var(--accent-color);
  border-bottom-color: var(--accent-color);
}

/* Collapsible side drawer / popovers (Glassmorphism Modal) */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1.5rem;
}

.modal {
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  width: 100%;
  max-width: 600px;
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  animation: modalEnter 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalEnter {
  from { transform: scale(0.95); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.modal-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-body {
  padding: 1.5rem;
}

.modal-footer {
  padding: 1.25rem 1.5rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  background-color: rgba(255, 255, 255, 0.01);
}

/* Kanban Board */
.kanban-board {
  display: flex;
  gap: 1.25rem;
  overflow-x: auto;
  align-items: flex-start;
  padding-bottom: 1.5rem;
  min-height: calc(100vh - 200px);
}

.kanban-column {
  flex: 1;
  min-width: 290px;
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  max-height: calc(100vh - 180px);
}

.kanban-column-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: rgba(255, 255, 255, 0.01);
  border-top-left-radius: 12px;
  border-top-right-radius: 12px;
}

.kanban-column-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.kanban-column-count {
  font-size: 0.75rem;
  background-color: var(--surface-hover);
  color: var(--text-secondary);
  padding: 0.2rem 0.5rem;
  border-radius: 9999px;
  border: 1px solid var(--border-color);
}

.kanban-cards-list {
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  overflow-y: auto;
  flex-grow: 1;
  min-height: 200px;
}

.kanban-card {
  background-color: var(--bg-color);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1rem;
  cursor: grab;
  transition: all 0.2s ease;
  position: relative;
}

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

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

.kanban-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 0.5rem;
  gap: 0.5rem;
}

.kanban-card-type {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  font-weight: 600;
}

.kanban-card-title {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
  line-height: 1.4;
  text-decoration: none;
}

.kanban-card-title a {
  color: var(--text-primary);
  text-decoration: none;
}

.kanban-card-title a:hover {
  color: var(--accent-color);
}

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

.sortable-ghost {
  opacity: 0.4;
  border: 2px dashed var(--accent-color);
}

/* Print Layout rules */
@media print {
  body {
    background: #ffffff !important;
    color: #000000 !important;
  }
  
  .app-sidebar,
  .app-header,
  .no-print,
  .btn,
  button,
  .form-inline,
  form {
    display: none !important;
  }
  
  .app-layout {
    display: block !important;
    width: 100% !important;
    height: auto !important;
  }
  
  .app-main {
    padding: 0 !important;
    margin: 0 !important;
    overflow: visible !important;
  }
  
  .card {
    border: none !important;
    box-shadow: none !important;
    padding: 0 !important;
    background: transparent !important;
  }
  
  .edit-item-form-row {
    display: none !important;
  }
  
  .static-item-row {
    display: table-row !important;
  }
  
  * {
    color: #000000 !important;
    text-shadow: none !important;
    box-shadow: none !important;
  }
}