/* =======================================================
   TimeFlow Master Stylesheet - Glassmorphism Design System
   Frosted-glass UI with animated mesh blobs, dark/light themes,
   ClickUp-style status groups, Timesheet grid & popovers
   ======================================================= */

:root {
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  
  /* Primary & Brand Accents */
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --primary-light: rgba(99, 102, 241, 0.18);
  --primary-glow: rgba(99, 102, 241, 0.35);

  --success: #10b981;
  --success-light: rgba(16, 185, 129, 0.15);
  --warning: #f59e0b;
  --warning-light: rgba(245, 158, 11, 0.15);
  --danger: #ef4444;
  --danger-light: rgba(239, 68, 68, 0.15);
  --info: #3b82f6;

  /* Glassmorphism Dark Theme (Default) */
  --bg-deep: #090d16;
  --bg-glass-card: rgba(22, 29, 47, 0.65);
  --bg-glass-hover: rgba(30, 41, 65, 0.75);
  --bg-glass-sidebar: rgba(13, 18, 32, 0.72);
  --bg-glass-header: rgba(13, 18, 32, 0.68);
  --bg-glass-modal: rgba(15, 22, 38, 0.88);
  --bg-glass-input: rgba(10, 15, 28, 0.7);

  --border-glass: rgba(255, 255, 255, 0.12);
  --border-glass-hover: rgba(255, 255, 255, 0.22);
  --border-color: rgba(255, 255, 255, 0.1);

  --shadow-glass: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  --shadow-glass-lg: 0 16px 48px 0 rgba(0, 0, 0, 0.5);
  --inner-highlight: inset 0 1px 0 rgba(255, 255, 255, 0.12);

  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;

  --backdrop-blur: blur(18px) saturate(140%);
  --backdrop-blur-modal: blur(24px) saturate(150%);

  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 18px;
  --radius-xl: 24px;
}

[data-theme="light"] {
  --bg-deep: #f1f5f9;
  --bg-glass-card: rgba(255, 255, 255, 0.72);
  --bg-glass-hover: rgba(255, 255, 255, 0.85);
  --bg-glass-sidebar: rgba(255, 255, 255, 0.8);
  --bg-glass-header: rgba(255, 255, 255, 0.82);
  --bg-glass-modal: rgba(255, 255, 255, 0.92);
  --bg-glass-input: rgba(255, 255, 255, 0.85);

  --border-glass: rgba(255, 255, 255, 0.65);
  --border-glass-hover: rgba(255, 255, 255, 0.9);
  --border-color: rgba(0, 0, 0, 0.08);

  --shadow-glass: 0 8px 32px 0 rgba(31, 38, 135, 0.07);
  --shadow-glass-lg: 0 16px 48px 0 rgba(31, 38, 135, 0.12);
  --inner-highlight: inset 0 1px 0 rgba(255, 255, 255, 0.8);

  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;
}

/* Reset & Box Sizing */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.5;
  overflow: hidden;
  height: 100vh;
  width: 100vw;
  position: relative;
  -webkit-font-smoothing: antialiased;
}

/* =======================================================
   ANIMATED GRADIENT MESH BACKGROUND BLOBS
   ======================================================= */
.glass-bg-blobs {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  z-index: 0;
  pointer-events: none;
}

.glass-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.45;
  animation: floatBlobs 24s infinite alternate ease-in-out;
}

.glass-blob-1 {
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, #6366f1 0%, transparent 70%);
  top: -100px;
  left: 10%;
  animation-duration: 22s;
}

.glass-blob-2 {
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, #a855f7 0%, transparent 70%);
  bottom: -120px;
  left: 35%;
  animation-duration: 28s;
  animation-delay: -5s;
}

.glass-blob-3 {
  width: 440px;
  height: 440px;
  background: radial-gradient(circle, #06b6d4 0%, transparent 70%);
  top: 25%;
  right: -80px;
  animation-duration: 25s;
  animation-delay: -8s;
}

.glass-blob-4 {
  width: 380px;
  height: 380px;
  background: radial-gradient(circle, #ec4899 0%, transparent 70%);
  bottom: 10%;
  right: 20%;
  animation-duration: 30s;
  animation-delay: -12s;
}

@keyframes floatBlobs {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(40px, 30px) scale(1.08); }
  100% { transform: translate(-30px, -40px) scale(0.95); }
}

/* =======================================================
   LAYOUT STRUCTURE
   ======================================================= */
.app-wrapper {
  display: flex;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  position: relative;
  z-index: 1;
}

/* Sidebar */
.sidebar {
  width: 260px;
  background: var(--bg-glass-sidebar);
  backdrop-filter: var(--backdrop-blur);
  -webkit-backdrop-filter: var(--backdrop-blur);
  border-right: 1px solid var(--border-glass);
  box-shadow: var(--shadow-glass);
  display: flex;
  flex-direction: column;
  transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 20;
}

.sidebar.collapsed {
  width: 72px;
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--primary);
  text-decoration: none;
  overflow: hidden;
}

.brand-icon {
  width: 34px;
  height: 34px;
  background: linear-gradient(135deg, var(--primary), #a855f7);
  color: #fff;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  box-shadow: 0 4px 12px var(--primary-glow);
  flex-shrink: 0;
}

.sidebar.collapsed .brand-text {
  display: none;
}

.sidebar-nav {
  padding: 1rem 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  overflow-y: auto;
  flex: 1;
}

.nav-section-title {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.75px;
  padding: 0.75rem 0.6rem 0.35rem 0.6rem;
}

.sidebar.collapsed .nav-section-title {
  display: none;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0.75rem;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.2s ease;
  position: relative;
}

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

.nav-link.active {
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 600;
  border: 1px solid rgba(99, 102, 241, 0.3);
  box-shadow: 0 2px 8px var(--primary-light);
}

.sidebar.collapsed .nav-text {
  display: none;
}

.sidebar.collapsed .sidebar-clients-tree {
  display: none;
}

/* Main Area */
.main-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
}

/* Top Glass Header */
.top-header {
  height: 64px;
  background: var(--bg-glass-header);
  backdrop-filter: var(--backdrop-blur);
  -webkit-backdrop-filter: var(--backdrop-blur);
  border-bottom: 1px solid var(--border-glass);
  box-shadow: var(--shadow-glass);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.75rem;
  z-index: 15;
}

.page-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
}

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

.user-pill {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  background: var(--bg-glass-card);
  border: 1px solid var(--border-glass);
  box-shadow: var(--shadow-glass), var(--inner-highlight);
  cursor: pointer;
  transition: all 0.2s ease;
}

.user-pill:hover {
  background: var(--bg-glass-hover);
  border-color: var(--border-glass-hover);
}

.avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), #a855f7);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.75rem;
}

/* View Container */
.view-container {
  flex: 1;
  padding: 1.75rem;
  overflow-y: auto;
  position: relative;
}

/* =======================================================
   GLASSMORPHISM CARDS & CONTAINERS
   ======================================================= */
.card, .glass-card {
  background: var(--bg-glass-card);
  backdrop-filter: var(--backdrop-blur);
  -webkit-backdrop-filter: var(--backdrop-blur);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-glass), var(--inner-highlight);
  padding: 1.25rem 1.5rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.glass-card:hover {
  border-color: var(--border-glass-hover);
}

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

.card-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
}

/* =======================================================
   BUTTONS & FORM CONTROLS
   ======================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  text-decoration: none;
  line-height: 1.4;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #4f46e5);
  color: #fff;
  box-shadow: 0 4px 14px var(--primary-glow);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #4f46e5, #4338ca);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px var(--primary-glow);
}

.btn-secondary {
  background: var(--bg-glass-card);
  color: var(--text-primary);
  border: 1px solid var(--border-glass);
  box-shadow: var(--inner-highlight);
}

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

.btn-danger {
  background: linear-gradient(135deg, var(--danger), #dc2626);
  color: #fff;
  box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
}

.btn-danger:hover {
  background: #dc2626;
  transform: translateY(-1px);
}

.btn-sm {
  padding: 0.3rem 0.65rem;
  font-size: 0.775rem;
  border-radius: var(--radius-xs);
}

.close-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.3rem;
  cursor: pointer;
  padding: 0.2rem 0.4rem;
  line-height: 1;
  transition: color 0.15s ease;
}

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

/* Forms */
.form-group {
  margin-bottom: 1rem;
}

.form-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.35rem;
}

.form-control {
  width: 100%;
  padding: 0.55rem 0.8rem;
  font-size: 0.875rem;
  background: var(--bg-glass-input);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}

.form-control-sm {
  padding: 0.35rem 0.6rem;
  font-size: 0.8rem;
}

select.form-control option {
  background: var(--bg-deep);
  color: var(--text-primary);
}

/* =======================================================
   MODALS
   ======================================================= */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  transition: opacity 0.25s ease;
}

.modal-overlay.active {
  display: flex;
  opacity: 1;
}

.modal, .glass-modal {
  background: var(--bg-glass-modal);
  backdrop-filter: var(--backdrop-blur-modal);
  -webkit-backdrop-filter: var(--backdrop-blur-modal);
  border: 1px solid var(--border-glass-hover);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-glass-lg), var(--inner-highlight);
  padding: 1.75rem;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  animation: modalSlideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalSlideUp {
  from { transform: translateY(20px) scale(0.97); opacity: 0; }
  to { transform: translateY(0) scale(1); opacity: 1; }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-color);
}

.modal-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

/* =======================================================
   TABLES & LISTS
   ======================================================= */
.table-responsive {
  width: 100%;
  overflow-x: auto;
}

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

.table th {
  padding: 0.75rem 1rem;
  font-size: 0.775rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-color);
  letter-spacing: 0.5px;
}

.table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-color);
  vertical-align: middle;
  font-size: 0.875rem;
}

.table tbody tr {
  transition: background 0.15s ease;
}

.table tbody tr:hover {
  background: var(--bg-glass-hover);
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-xs);
  font-size: 0.75rem;
  font-weight: 600;
  color: #fff;
}

.badge-priority {
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  font-weight: 700;
  font-size: 0.7rem;
  text-transform: uppercase;
  display: inline-block;
}

.priority-urgent { background: rgba(239, 68, 68, 0.2); color: #ef4444; border: 1px solid rgba(239, 68, 68, 0.4); }
.priority-high { background: rgba(245, 158, 11, 0.2); color: #f59e0b; border: 1px solid rgba(245, 158, 11, 0.4); }
.priority-medium { background: rgba(59, 130, 246, 0.2); color: #3b82f6; border: 1px solid rgba(59, 130, 246, 0.4); }
.priority-low { background: rgba(100, 116, 139, 0.2); color: #94a3b8; border: 1px solid rgba(100, 116, 139, 0.4); }

/* =======================================================
   TIMESHEET GRID & CELL POPOVER (Part B)
   ======================================================= */
.timesheet-grid-wrapper {
  overflow-x: auto;
}

.timesheet-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
}

.timesheet-table th, .timesheet-table td {
  border: 1px solid var(--border-color);
  padding: 0.6rem 0.75rem;
  text-align: center;
}

.timesheet-table th:first-child, .timesheet-table td:first-child {
  text-align: left;
}

.timesheet-cell {
  min-width: 65px;
  cursor: pointer;
  transition: all 0.15s ease;
  font-weight: 600;
  border-radius: 4px;
}

.timesheet-cell:hover:not(.locked) {
  background: var(--primary-light) !important;
  color: var(--primary) !important;
  box-shadow: inset 0 0 0 1px var(--primary);
}

.timesheet-cell.locked {
  cursor: not-allowed;
  opacity: 0.8;
}

/* Glass Popover */
.glass-popover {
  background: var(--bg-glass-modal);
  backdrop-filter: var(--backdrop-blur-modal);
  -webkit-backdrop-filter: var(--backdrop-blur-modal);
  border: 1px solid var(--border-glass-hover);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-glass-lg), var(--inner-highlight);
  padding: 1.25rem;
  z-index: 1050;
  animation: popoverFadeIn 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes popoverFadeIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

.glass-dropdown {
  background: var(--bg-glass-modal);
  backdrop-filter: var(--backdrop-blur);
  -webkit-backdrop-filter: var(--backdrop-blur);
  border: 1px solid var(--border-glass);
}

/* =======================================================
   GRIDS & UTILITIES
   ======================================================= */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }

/* Toast Notifications */
#toastContainer {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toast {
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-sm);
  background: var(--bg-glass-modal);
  backdrop-filter: var(--backdrop-blur);
  -webkit-backdrop-filter: var(--backdrop-blur);
  border: 1px solid var(--border-glass-hover);
  box-shadow: var(--shadow-glass);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  animation: toastIn 0.25s ease;
}

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

@keyframes toastIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* =======================================================
   RESPONSIVE DESIGN & ACCESSIBILITY FALLBACKS
   ======================================================= */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .sidebar {
    position: absolute;
    height: 100vh;
    left: 0;
    top: 0;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
  }
  .sidebar.mobile-open {
    transform: translateX(0);
  }
  .grid-4, .grid-3, .grid-2 {
    grid-template-columns: 1fr;
  }
  .view-container {
    padding: 1rem;
  }
}

/* Fallback for browsers without backdrop-filter support */
@supports not ((-webkit-backdrop-filter: blur(1px)) or (backdrop-filter: blur(1px))) {
  .card, .glass-card, .sidebar, .top-header, .modal, .glass-modal, .glass-popover {
    background-color: var(--bg-deep) !important;
    opacity: 0.98;
  }
}

/* Accessibility: Prefers Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  .glass-blob {
    animation: none !important;
  }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Accessibility: Prefers Reduced Transparency */
@media (prefers-reduced-transparency: reduce) {
  .card, .glass-card, .sidebar, .top-header, .modal, .glass-modal, .glass-popover {
    background: var(--bg-deep) !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
  }
}

/* Deep link navigation highlight pulse */
@keyframes highlightPulse {
  0% {
    box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.8);
    background-color: rgba(99, 102, 241, 0.28);
  }
  40% {
    box-shadow: 0 0 22px 6px rgba(99, 102, 241, 0.6);
    background-color: rgba(99, 102, 241, 0.38);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(99, 102, 241, 0);
    background-color: transparent;
  }
}

.highlight-pulse {
  animation: highlightPulse 2.4s cubic-bezier(0.25, 1, 0.5, 1) forwards !important;
  border-radius: var(--radius-sm);
}

.ts-task-link {
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 600;
  cursor: pointer;
  transition: color 0.15s ease, text-decoration 0.15s ease;
}
.ts-task-link:hover {
  color: var(--primary);
  text-decoration: underline;
}

.ts-location-link {
  color: var(--text-muted);
  text-decoration: none;
  cursor: pointer;
  font-size: 0.78rem;
  transition: color 0.15s ease, text-decoration 0.15s ease;
}
.ts-location-link:hover {
  color: var(--primary);
  text-decoration: underline;
}

.timesheet-cell.cell-editable {
  cursor: pointer !important;
  transition: background 0.15s ease;
}
.timesheet-cell.cell-editable:hover {
  background: rgba(255, 255, 255, 0.08) !important;
}

/* Dashboard Overdue, Due Soon & Team Progress Panels */
.dash-task-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-color);
  cursor: pointer;
  transition: background 0.15s ease;
  border-radius: var(--radius-xs);
}
.dash-task-row:hover {
  background: rgba(255, 255, 255, 0.04);
}
.dash-task-row:last-child {
  border-bottom: none;
}
.dash-progress-track {
  background: rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  height: 8px;
  overflow: hidden;
  position: relative;
}
.dash-progress-fill {
  height: 100%;
  border-radius: 999px;
  background: var(--primary);
  transition: width 0.3s ease;
}
.dash-timer-running-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 8px #22c55e;
  margin-left: 6px;
  animation: timerPulse 1.8s infinite;
}
@keyframes timerPulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}


/* Service Summary – slide-over tasks panel */
.ss-panel-overlay {
  position: fixed; inset: 0; z-index: 1040;
  background: rgba(0,0,0,0.4); opacity: 0;
  transition: opacity 0.3s ease; pointer-events: none;
}
.ss-panel-overlay.active { opacity: 1; pointer-events: auto; }
.ss-tasks-panel {
  position: fixed; top: 0; right: 0; width: 420px; max-width: 95vw;
  height: 100vh; z-index: 1050; display: flex; flex-direction: column;
  background: var(--bg-card, #1e293b);
  border-left: 1px solid var(--border-color, rgba(255,255,255,0.08));
  box-shadow: -4px 0 24px rgba(0,0,0,0.35);
  transform: translateX(100%); transition: transform 0.3s ease;
}
.ss-tasks-panel.active { transform: translateX(0); }


/* ====================================================
   SUBTASKS SYSTEM STYLES (Hierarchy, Polish, Animation)
   ==================================================== */
.subtask-expand-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 4px;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 0.75rem;
  transition: transform 0.2s ease, color 0.15s ease, background 0.15s ease;
  user-select: none;
}
.subtask-expand-toggle:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.08);
}
.subtask-expand-toggle.open {
  transform: rotate(90deg);
  color: var(--primary);
}

.subtask-progress-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.15rem 0.45rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-color);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-secondary);
}
.subtask-progress-track {
  width: 34px;
  height: 4px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  overflow: hidden;
  display: inline-block;
}
.subtask-progress-fill {
  height: 100%;
  border-radius: 999px;
  background: var(--success, #10b981);
  transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.task-quick-add-subtask-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: bold;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s ease, background 0.15s ease, color 0.15s ease, transform 0.15s ease;
}
.task-item-row:hover .task-quick-add-subtask-btn {
  opacity: 1;
  pointer-events: auto;
}
.task-quick-add-subtask-btn:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  transform: scale(1.08);
}

/* Indented subtasks container under main row */
.subtasks-container-row td {
  padding: 0 !important;
  border-top: none !important;
  border-bottom: 1px solid var(--border-color) !important;
}
.subtasks-wrapper {
  margin-left: 2.2rem;
  margin-right: 1rem;
  margin-top: 0.25rem;
  margin-bottom: 0.5rem;
  border-left: 2px solid rgba(99, 102, 241, 0.35);
  padding-left: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.subtask-row-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.45rem 0.65rem;
  border-radius: var(--radius-sm, 6px);
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid rgba(255, 255, 255, 0.04);
  transition: background 0.15s ease, opacity 0.2s ease, border-color 0.15s ease;
}
.subtask-row-item:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.08);
}
.subtask-row-item.is-done {
  opacity: 0.58;
}
.subtask-row-item.is-done .subtask-title-text {
  text-decoration: line-through;
  color: var(--text-muted);
}

/* Rounded checkbox with satisfying animation */
.subtask-round-check {
  appearance: none;
  -webkit-appearance: none;
  width: 17px;
  height: 17px;
  border: 2px solid var(--border-color);
  border-radius: 50%;
  outline: none;
  cursor: pointer;
  background: transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  position: relative;
  transition: background 0.2s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.2s cubic-bezier(0.4, 0, 0.2, 1), transform 0.15s ease;
  flex-shrink: 0;
}
.subtask-round-check:hover {
  border-color: var(--primary);
  transform: scale(1.1);
}
.subtask-round-check:checked {
  background: var(--success, #10b981);
  border-color: var(--success, #10b981);
  transform: scale(1.05);
}
.subtask-round-check:checked::after {
  content: '';
  width: 5px;
  height: 9px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
  margin-top: -2px;
  display: block;
}

/* Quick add subtask inline input row */
.subtask-quick-add-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.65rem;
  border-radius: var(--radius-sm, 6px);
  background: rgba(255, 255, 255, 0.015);
  border: 1px dashed rgba(255, 255, 255, 0.12);
  transition: border-color 0.15s ease, background 0.15s ease;
}
.subtask-quick-add-row:focus-within {
  border-color: var(--primary);
  background: rgba(255, 255, 255, 0.04);
}
.subtask-quick-add-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  font-size: 0.8rem;
  color: var(--text-primary);
  padding: 0.2rem 0;
}
.subtask-quick-add-input::placeholder {
  color: var(--text-muted);
  font-style: italic;
}

/* Subtasks in Task Modal */
.modal-subtasks-section {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md, 8px);
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
}
.modal-subtask-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.45rem 0.5rem;
  border-radius: 4px;
  transition: background 0.15s ease;
}
.modal-subtask-item:hover {
  background: rgba(255, 255, 255, 0.04);
}

@media (prefers-reduced-motion: reduce) {
  .subtask-expand-toggle,
  .subtask-progress-fill,
  .subtask-round-check,
  .task-quick-add-subtask-btn,
  .subtask-row-item {
    transition: none !important;
    transform: none !important;
  }
}