@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&family=Prompt:wght@300;400;500;600;700&display=swap');

:root {
  /* Color Palette */
  --bg-primary: #0a0b10;
  --bg-secondary: #12141c;
  --bg-card: rgba(255, 255, 255, 0.04);
  --bg-card-hover: rgba(255, 255, 255, 0.08);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(129, 140, 248, 0.4);
  
  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  
  /* Status Colors */
  --color-todo: #818cf8;
  --color-todo-bg: rgba(129, 140, 248, 0.15);
  --color-in-progress: #fb923c;
  --color-in-progress-bg: rgba(251, 146, 60, 0.15);
  --color-in-review: #38bdf8;
  --color-in-review-bg: rgba(56, 189, 248, 0.15);
  --color-done: #34d399;
  --color-done-bg: rgba(52, 211, 153, 0.15);
  
  /* Priority Colors */
  --priority-low: #9ca3af;
  --priority-low-bg: rgba(156, 163, 175, 0.15);
  --priority-medium: #fbbf24;
  --priority-medium-bg: rgba(251, 191, 36, 0.15);
  --priority-high: #f87171;
  --priority-high-bg: rgba(248, 113, 113, 0.15);
  --priority-high-glow: rgba(248, 113, 113, 0.25);
  
  /* Accents & Utilities */
  --accent-purple: #a78bfa;
  --accent-blue: #60a5fa;
  --danger: #ef4444;
  --danger-bg: rgba(239, 68, 68, 0.15);
  
  --font-family: 'Outfit', 'Prompt', sans-serif;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.1) 0%, transparent 40%),
    radial-gradient(circle at 90% 80%, rgba(167, 139, 250, 0.1) 0%, transparent 40%);
  background-attachment: fixed;
}

/* Sidebar Navigation */
aside {
  width: 280px;
  background-color: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  height: 100vh;
  position: fixed;
  left: 0;
  top: 0;
  z-index: 100;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
  padding-left: 0.5rem;
}

.brand-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--color-todo), var(--accent-purple));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 15px rgba(129, 140, 248, 0.4);
}

.brand-icon svg {
  width: 22px;
  height: 22px;
  fill: white;
}

.brand-name {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  background: linear-gradient(to right, #ffffff, #d1d5db);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-section {
  margin-bottom: 2rem;
}

.nav-title {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 1.5px;
  margin-bottom: 0.75rem;
  padding-left: 0.75rem;
}

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

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  color: var(--text-secondary);
  font-weight: 500;
  transition: var(--transition-fast);
  margin-bottom: 0.25rem;
  border: 1px solid transparent;
}

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

.nav-item.active {
  background: linear-gradient(135deg, rgba(129, 140, 248, 0.15), rgba(167, 139, 250, 0.05));
  border-color: rgba(129, 140, 248, 0.2);
  color: #c7d2fe;
  font-weight: 600;
}

.nav-item svg {
  width: 20px;
  height: 20px;
  opacity: 0.7;
}

.nav-item.active svg {
  opacity: 1;
  color: var(--color-todo);
}

.nav-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: linear-gradient(135deg, #4f46e5, #7c3aed);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: bold;
}

.nav-avatar.somchai { background: linear-gradient(135deg, #3b82f6, #1d4ed8); }
.nav-avatar.somsri { background: linear-gradient(135deg, #ec4899, #be185d); }
.nav-avatar.john { background: linear-gradient(135deg, #10b981, #047857); }
.nav-avatar.sarah { background: linear-gradient(135deg, #f59e0b, #b45309); }

/* Main Content Area */
main {
  margin-left: 280px;
  padding: 2rem 3rem;
  width: calc(100% - 280px);
  min-height: 100vh;
}

/* Header */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2.5rem;
}

.header-title-area h1 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.header-title-area p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

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

/* Base Components: Button */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-md);
  font-family: var(--font-family);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
  border: 1px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-todo), var(--accent-purple));
  color: white;
  box-shadow: 0 4px 14px rgba(129, 140, 248, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(129, 140, 248, 0.45);
}

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

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

/* App Views */
.view-panel {
  display: none;
}

.view-panel.active {
  display: block;
  animation: fadeIn var(--transition-normal);
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* -------------------- */
/* LEADER DASHBOARD     */
/* -------------------- */

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.stat-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--stat-color, var(--color-todo));
}

.stat-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 1rem;
}

.stat-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
}

.stat-icon svg {
  width: 16px;
  height: 16px;
  color: var(--stat-color, var(--text-primary));
}

.stat-value {
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.stat-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Dashboard Analytics Grid */
.dashboard-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.dashboard-panel {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  backdrop-filter: blur(10px);
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.panel-title {
  font-size: 1.1rem;
  font-weight: 600;
}

/* Team Progress List */
.team-progress-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.team-progress-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.member-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  width: 180px;
}

.member-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.9rem;
  color: white;
}

.member-avatar.somchai { background: linear-gradient(135deg, #3b82f6, #1d4ed8); }
.member-avatar.somsri { background: linear-gradient(135deg, #ec4899, #be185d); }
.member-avatar.john { background: linear-gradient(135deg, #10b981, #047857); }
.member-avatar.sarah { background: linear-gradient(135deg, #f59e0b, #b45309); }

.member-name {
  font-weight: 500;
}

.progress-track-area {
  flex-grow: 1;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.progress-track {
  height: 8px;
  background-color: rgba(255, 255, 255, 0.05);
  border-radius: 4px;
  overflow: hidden;
  flex-grow: 1;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(to right, var(--color-todo), var(--color-done));
  border-radius: 4px;
  width: 0%;
  transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.progress-percentage {
  font-size: 0.85rem;
  font-weight: 600;
  min-width: 40px;
  text-align: right;
}

.task-count {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* SVG Chart */
.chart-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 220px;
}

.donut-chart-svg {
  transform: rotate(-90deg);
}

.donut-segment {
  fill: none;
  stroke-width: 6;
  transition: stroke-dasharray 0.5s ease;
}

.chart-center-text {
  font-family: var(--font-family);
  fill: var(--text-primary);
  text-anchor: middle;
}

.chart-center-title {
  font-size: 4px;
  font-weight: 400;
  fill: var(--text-secondary);
}

.chart-center-value {
  font-size: 10px;
  font-weight: 700;
  fill: var(--text-primary);
}

.chart-legend {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  width: 100%;
  margin-top: 1.5rem;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.legend-color {
  width: 12px;
  height: 12px;
  border-radius: 3px;
}

/* Full Tasks Table */
.tasks-table-panel {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  backdrop-filter: blur(10px);
  margin-bottom: 2rem;
}

.tasks-table-controls {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.search-input-wrapper {
  position: relative;
  flex-grow: 1;
}

.search-input-wrapper svg {
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  color: var(--text-muted);
}

.form-control {
  width: 100%;
  background-color: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 0.6rem 1rem;
  border-radius: var(--radius-md);
  font-family: var(--font-family);
  font-size: 0.9rem;
  transition: var(--transition-fast);
}

.search-input-wrapper .form-control {
  padding-left: 2.5rem;
}

.form-control:focus {
  outline: none;
  border-color: var(--color-todo);
  background-color: rgba(255, 255, 255, 0.06);
  box-shadow: 0 0 10px rgba(129, 140, 248, 0.15);
}

select.form-control {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%239ca3af'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  background-size: 16px;
  padding-right: 2rem;
}

.tasks-table-wrapper {
  width: 100%;
  overflow-x: auto;
}

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

th {
  padding: 1rem;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border-color);
}

td {
  padding: 1.25rem 1rem;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.9rem;
}

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

tr:hover td {
  background-color: rgba(255, 255, 255, 0.01);
}

.table-task-title {
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.table-task-desc {
  color: var(--text-muted);
  font-size: 0.8rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 250px;
}

/* Status Pill */
.status-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.status-pill.todo { color: var(--color-todo); background-color: var(--color-todo-bg); }
.status-pill.in-progress { color: var(--color-in-progress); background-color: var(--color-in-progress-bg); }
.status-pill.in-review { color: var(--color-in-review); background-color: var(--color-in-review-bg); }
.status-pill.done { color: var(--color-done); background-color: var(--color-done-bg); }

/* Priority Pill */
.priority-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
  font-size: 0.7rem;
  font-weight: 600;
}

.priority-pill.low { color: var(--priority-low); background-color: var(--priority-low-bg); }
.priority-pill.medium { color: var(--priority-medium); background-color: var(--priority-medium-bg); }
.priority-pill.high { color: var(--priority-high); background-color: var(--priority-high-bg); }

/* Deadline label */
.deadline-label {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.85rem;
}

.deadline-label.overdue {
  color: var(--priority-high);
  font-weight: 600;
}

.deadline-label.overdue svg {
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0% { transform: scale(1); opacity: 0.7; }
  50% { transform: scale(1.15); opacity: 1; }
  100% { transform: scale(1); opacity: 0.7; }
}

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

.icon-btn {
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--text-secondary);
  padding: 0.25rem;
  border-radius: 4px;
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.icon-btn.delete:hover {
  color: var(--danger);
  background-color: var(--danger-bg);
}

/* -------------------- */
/* KANBAN BOARD VIEW    */
/* -------------------- */

.kanban-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  align-items: start;
}

.kanban-column {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1rem;
  min-height: 70vh;
  display: flex;
  flex-direction: column;
}

.column-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
  padding: 0 0.5rem;
}

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

.column-color-indicator {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--column-color);
}

.column-title {
  font-size: 0.95rem;
  font-weight: 600;
}

.column-count {
  font-size: 0.75rem;
  background-color: rgba(255, 255, 255, 0.05);
  padding: 0.2rem 0.5rem;
  border-radius: 20px;
  color: var(--text-secondary);
  font-weight: 600;
}

.column-cards-container {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  flex-grow: 1;
  min-height: 200px;
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
}

.column-cards-container.drag-over {
  background-color: rgba(255, 255, 255, 0.02);
  outline: 2px dashed rgba(129, 140, 248, 0.3);
  outline-offset: -2px;
}

/* Kanban Cards */
.task-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  cursor: grab;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
  position: relative;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

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

.task-card:hover {
  background-color: var(--bg-card-hover);
  border-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.task-card.dragging {
  opacity: 0.4;
  transform: scale(0.98);
}

.task-card.overdue-warning {
  border-color: rgba(248, 113, 113, 0.35);
  box-shadow: 0 4px 12px var(--priority-high-glow);
}

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

.card-title {
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.4;
}

.card-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 0.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.card-date-badge {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.card-date-badge.overdue {
  color: var(--priority-high);
  font-weight: 500;
}

.card-actions {
  display: flex;
  gap: 0.25rem;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

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

/* -------------------- */
/* MODAL COMPONENT      */
/* -------------------- */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(10, 11, 16, 0.8);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 520px;
  padding: 2rem;
  box-shadow: var(--shadow-lg);
  transform: translateY(20px);
  transition: transform var(--transition-normal);
}

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

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.modal-title {
  font-size: 1.25rem;
  font-weight: 700;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  margin-top: 2rem;
}

/* Empty State */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem 1.5rem;
  text-align: center;
  color: var(--text-muted);
}

.empty-state svg {
  width: 48px;
  height: 48px;
  margin-bottom: 1rem;
  opacity: 0.5;
}

.empty-state p {
  font-size: 0.85rem;
}

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

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* Responsive adjustments */
@media (max-width: 1200px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .kanban-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  aside {
    width: 70px;
    padding: 1.5rem 0.5rem;
  }
  .brand-name, .nav-title, .nav-item span {
    display: none;
  }
  .brand {
    justify-content: center;
    padding: 0;
    margin-bottom: 2rem;
  }
  main {
    margin-left: 70px;
    width: calc(100% - 70px);
    padding: 1.5rem;
  }
  .dashboard-grid {
    grid-template-columns: 1fr;
  }
  .kanban-grid {
    grid-template-columns: 1fr;
  }
}