/* ==========================================================================
   TASKER DESIGN SYSTEM & CSS STYLES
   ========================================================================== */

:root {
  /* Color Palette */
  --bg-dark: #0b0f19;
  --bg-card: rgba(21, 28, 44, 0.7);
  --bg-card-hover: rgba(30, 41, 64, 0.85);
  --border-glass: rgba(255, 255, 255, 0.08);
  --border-glass-bright: rgba(255, 255, 255, 0.16);

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --accent-primary: #6366f1; /* Indigo */
  --accent-primary-hover: #4f46e5;
  --accent-glow: rgba(99, 102, 241, 0.35);

  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-danger: #ef4444;
  --color-info: #06b6d4;

  --badge-high-bg: rgba(239, 68, 68, 0.15);
  --badge-high-text: #fca5a5;
  --badge-medium-bg: rgba(245, 158, 11, 0.15);
  --badge-medium-text: #fcd34d;
  --badge-low-bg: rgba(16, 185, 129, 0.15);
  --badge-low-text: #6ee7b7;

  /* Typography */
  --font-family-body: 'Inter', system-ui, -apple-system, sans-serif;
  --font-family-heading: 'Outfit', system-ui, -apple-system, sans-serif;

  /* Radius & Shadows */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;

  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.4), 0 8px 10px -6px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 20px var(--accent-glow);

  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: var(--font-family-body);
  background-color: var(--bg-dark);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* Background Glowing Orbs */
.bg-orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.45;
}

.orb-1 {
  top: -10%;
  left: 15%;
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, #6366f1 0%, rgba(99,102,241,0) 70%);
}

.orb-2 {
  bottom: 10%;
  right: 10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, #06b6d4 0%, rgba(6,182,212,0) 70%);
}

.orb-3 {
  top: 40%;
  left: 60%;
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, #ec4899 0%, rgba(236,72,153,0) 70%);
}

/* Glassmorphism Panel */
.glass-panel {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

/* Layout Container */
.app-container {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Full Screen Helper */
.full-screen-center {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.hidden {
  display: none !important;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  font-family: var(--font-family-body);
  font-size: 0.92rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-primary) 0%, #4f46e5 100%);
  color: #fff;
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 25px rgba(99, 102, 241, 0.6);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-primary);
  border: 1px solid var(--border-glass);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--border-glass-bright);
}

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

.btn-tertiary:hover {
  color: var(--text-primary);
}

.btn-icon {
  padding: 8px;
  border-radius: var(--radius-sm);
}

.btn-google {
  width: 100%;
  background: #ffffff;
  color: #1f2937;
  font-weight: 600;
  padding: 12px 20px;
  margin-top: 16px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.btn-google:hover {
  background: #f8fafc;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.3);
}

/* Spinner */
.spinner {
  width: 36px;
  height: 36px;
  border: 3px solid rgba(255, 255, 255, 0.1);
  border-top-color: var(--accent-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-bottom: 12px;
}

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

/* Login View */
.login-card {
  width: 100%;
  max-width: 420px;
  padding: 40px 32px;
  text-align: center;
}

.brand-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 8px;
}

.logo-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, #6366f1 0%, #06b6d4 100%);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.4rem;
  box-shadow: var(--shadow-glow);
}

.brand-logo h1 {
  font-family: var(--font-family-heading);
  font-size: 2.2rem;
  font-weight: 800;
  background: linear-gradient(135deg, #ffffff 0%, #cbd5e1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.login-subtitle {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 24px;
}

.login-footer {
  margin-top: 24px;
  font-size: 0.82rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

/* Alerts */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  text-align: left;
}

.alert-danger {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #fca5a5;
}

/* Navbar */
.navbar {
  margin: 16px 24px 0 24px;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-title {
  font-family: var(--font-family-heading);
  font-size: 1.5rem;
  font-weight: 700;
}

.badge-subdomain {
  font-size: 0.75rem;
  padding: 4px 8px;
  border-radius: var(--radius-full);
  background: rgba(99, 102, 241, 0.2);
  color: #a5b4fc;
  border: 1px solid rgba(99, 102, 241, 0.3);
}

.user-profile {
  display: flex;
  align-items: center;
  gap: 12px;
}

.avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 2px solid var(--accent-primary);
  object-fit: cover;
}

.user-name {
  font-weight: 600;
  font-size: 0.92rem;
}

/* Dashboard Content */
.dashboard-content {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Stats Section */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.stat-card {
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: transform var(--transition-fast);
}

.stat-card:hover {
  transform: translateY(-2px);
}

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.icon-pending { background: rgba(99, 102, 241, 0.15); color: #818cf8; }
.icon-urgent { background: rgba(239, 68, 68, 0.15); color: #fca5a5; }
.icon-high { background: rgba(245, 158, 11, 0.15); color: #fcd34d; }
.icon-completed { background: rgba(16, 185, 129, 0.15); color: #6ee7b7; }

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

.stat-value {
  font-family: var(--font-family-heading);
  font-size: 1.7rem;
  font-weight: 700;
  line-height: 1.2;
}

.stat-label {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

/* Toolbar Section */
.toolbar-section {
  padding: 16px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.search-box {
  position: relative;
  flex: 1;
  min-width: 240px;
}

.search-box i {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  width: 18px;
  height: 18px;
}

.search-box input {
  width: 100%;
  padding: 10px 14px 10px 38px;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.9rem;
  outline: none;
  transition: border-color var(--transition-fast);
}

.search-box input:focus {
  border-color: var(--accent-primary);
}

.filter-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.select-input {
  padding: 10px 14px;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.88rem;
  outline: none;
  cursor: pointer;
}

.select-input option {
  background: #0f172a;
  color: var(--text-primary);
}

/* Tasks Grid */
.tasks-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 16px;
}

.tasks-placeholder {
  padding: 48px;
  text-align: center;
  color: var(--text-secondary);
}

.tasks-placeholder .empty-icon {
  font-size: 2.5rem;
  color: var(--accent-primary);
  margin-bottom: 12px;
}

.tasks-placeholder h3 {
  font-family: var(--font-family-heading);
  font-size: 1.3rem;
  color: var(--text-primary);
  margin-bottom: 6px;
}

/* Task Card */
.task-card {
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: all var(--transition-smooth);
  position: relative;
}

.task-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-glass-bright);
}

.task-card.task-done {
  opacity: 0.65;
  background: rgba(15, 23, 42, 0.4);
}

.task-card.task-done .task-title {
  text-decoration: line-through;
  color: var(--text-muted);
}

.task-header {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.task-checkbox {
  width: 22px;
  height: 22px;
  border-radius: 6px;
  border: 2px solid var(--border-glass-bright);
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  flex-shrink: 0;
  margin-top: 2px;
  transition: all var(--transition-fast);
}

.task-checkbox:hover {
  border-color: var(--accent-primary);
}

.task-checkbox.checked {
  background: var(--color-success);
  border-color: var(--color-success);
}

.task-title-group {
  flex: 1;
}

.task-title {
  font-weight: 600;
  font-size: 1.05rem;
  line-height: 1.3;
  margin-bottom: 4px;
}

.task-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  white-space: pre-wrap;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.task-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;

}

.badge {
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  text-transform: capitalize;
}

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

.badge-category {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-secondary);
}

.due-date-pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--text-secondary);
}

.due-date-pill.overdue {
  color: var(--color-danger);
  font-weight: 600;
}

.task-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 10px;
  margin-top: 4px;
}

.assignee-info {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.assignee-avatar {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  object-fit: cover;
}

.task-card-actions {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-card {
  width: 100%;
  max-width: 520px;
  padding: 28px;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.modal-header h2 {
  font-family: var(--font-family-heading);
  font-size: 1.4rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
  padding: 10px 14px;
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.92rem;
  outline: none;
  font-family: var(--font-family-body);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent-primary);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 24px;
}

/* Responsive Rules */
@media (max-width: 768px) {
  .navbar {
    margin: 8px 12px 0 12px;
    padding: 12px;
  }

  .dashboard-content {
    padding: 12px;
  }

  .toolbar-section {
    flex-direction: column;
    align-items: stretch;
  }

  .filter-group {
    grid-template-columns: 1fr 1fr;
    display: grid;
  }

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