/* ================================================================
   TaskFlow OS v2 — styles.css
   Complete design system: Auth, Dashboard, Workspaces, Tasks
   ================================================================ */

/* ----------------------------------------------------------------
   1. CSS VARIABLES (Design Tokens)
   ---------------------------------------------------------------- */
:root {
  --primary:       #6366F1;
  --primary-dark:  #4F46E5;
  --primary-light: #818CF8;
  --secondary:     #8B5CF6;
  --success:       #10B981;
  --warning:       #F59E0B;
  --danger:        #EF4444;
  --danger-dark:   #DC2626;
  --info:          #3B82F6;

  --priority-low:      #10B981;
  --priority-medium:   #F59E0B;
  --priority-high:     #EF4444;
  --priority-critical: #7C3AED;

  --radius-sm:   6px;
  --radius-md:   12px;
  --radius-lg:   16px;
  --radius-xl:   24px;
  --radius-full: 9999px;

  --font: 'Inter', system-ui, -apple-system, sans-serif;
  --transition: 0.2s ease;

  --sidebar-w: 260px;
  --topbar-h:  64px;
}

/* ----------------------------------------------------------------
   2. DARK THEME (Default)
   ---------------------------------------------------------------- */
[data-theme="dark"] {
  --bg:          #0D1117;
  --bg-surface:  #161B27;
  --bg-elevated: #1E2535;
  --bg-hover:    #252D3D;

  --glass-bg:     rgba(22, 27, 39, 0.85);
  --glass-border: rgba(99, 102, 241, 0.15);
  --glass-shadow: 0 8px 32px rgba(0,0,0,0.5);

  --text:        #F1F5F9;
  --text-2:      #94A3B8;
  --text-3:      #64748B;
  --text-inv:    #0D1117;

  --border:      rgba(255,255,255,0.08);
  --border-2:    rgba(255,255,255,0.14);

  --input-bg:     rgba(255,255,255,0.05);
  --input-border: rgba(255,255,255,0.1);

  --scrollbar:       rgba(255,255,255,0.08);
  --scrollbar-thumb: rgba(255,255,255,0.15);
}

/* ----------------------------------------------------------------
   3. LIGHT THEME
   ---------------------------------------------------------------- */
[data-theme="light"] {
  --bg:          #F0F4FF;
  --bg-surface:  #FFFFFF;
  --bg-elevated: #F8FAFF;
  --bg-hover:    #EEF2FF;

  --glass-bg:     rgba(255, 255, 255, 0.9);
  --glass-border: rgba(99, 102, 241, 0.2);
  --glass-shadow: 0 8px 32px rgba(99, 102, 241, 0.08);

  --text:        #0F172A;
  --text-2:      #475569;
  --text-3:      #94A3B8;
  --text-inv:    #FFFFFF;

  --border:      rgba(0,0,0,0.07);
  --border-2:    rgba(0,0,0,0.12);

  --input-bg:     rgba(0,0,0,0.03);
  --input-border: rgba(0,0,0,0.1);

  --scrollbar:       rgba(0,0,0,0.06);
  --scrollbar-thumb: rgba(0,0,0,0.15);
}

/* ----------------------------------------------------------------
   4. RESET & BASE
   ---------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
  transition: background var(--transition), color var(--transition);
  overflow-x: hidden;
}
ul, ol { list-style: none; }
button { font-family: var(--font); cursor: pointer; border: none; background: none; }
input, textarea, select { font-family: var(--font); }
:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; border-radius: var(--radius-sm); }

/* Scrollbar */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: var(--scrollbar); }
::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 99px; }

/* ----------------------------------------------------------------
   5. GLASS CARD
   ---------------------------------------------------------------- */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--glass-shadow);
  transition: background var(--transition), border-color var(--transition);
}

/* ----------------------------------------------------------------
   6. AUTH VIEW
   ---------------------------------------------------------------- */
.auth-view {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 20px;
}

/* Animated background blobs */
.auth-bg { position: absolute; inset: 0; z-index: 0; pointer-events: none; }
.auth-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.25;
  animation: blobFloat 8s ease-in-out infinite;
}
.blob-1 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, #6366F1, #8B5CF6);
  top: -150px; left: -150px;
  animation-delay: 0s;
}
.blob-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, #EC4899, #6366F1);
  bottom: -100px; right: -100px;
  animation-delay: -3s;
}
.blob-3 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, #10B981, #3B82F6);
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  animation-delay: -6s;
}
@keyframes blobFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%       { transform: translate(20px, -20px) scale(1.05); }
  66%       { transform: translate(-15px, 10px) scale(0.97); }
}

.auth-container {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 420px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

/* Auth Brand */
.auth-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.auth-brand-icon {
  width: 48px; height: 48px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  color: white;
  box-shadow: 0 8px 24px rgba(99,102,241,0.4);
}
.auth-brand-name {
  font-size: 26px; font-weight: 800;
  color: var(--text); letter-spacing: -0.5px;
}
.auth-brand-name span { color: var(--primary); }

/* Auth Card */
.auth-card {
  width: 100%;
  overflow: hidden;
}

/* Auth Tabs */
.auth-tabs {
  display: grid; grid-template-columns: 1fr 1fr;
  border-bottom: 1px solid var(--border);
}
.auth-tab {
  padding: 16px;
  font-size: 14px; font-weight: 600;
  color: var(--text-3);
  background: none; border: none;
  border-bottom: 2px solid transparent;
  transition: all var(--transition);
  cursor: pointer;
}
.auth-tab.active { color: var(--primary); border-bottom-color: var(--primary); }
.auth-tab:hover:not(.active) { color: var(--text-2); background: var(--bg-hover); }

/* Auth Form */
.auth-form {
  padding: 28px;
  display: flex; flex-direction: column; gap: 20px;
}

/* Auth Error */
.auth-error {
  font-size: 13px; color: var(--danger);
  background: rgba(239,68,68,0.1);
  border-radius: var(--radius-sm);
  padding: 0;
  min-height: 0;
  transition: all var(--transition);
}
.auth-error:not(:empty) { padding: 10px 14px; }

/* Auth Footer */
.auth-footer {
  font-size: 13px; color: var(--text-3); text-align: center;
}

/* ----------------------------------------------------------------
   7. FORM ELEMENTS
   ---------------------------------------------------------------- */
.form-group {
  display: flex; flex-direction: column; gap: 8px;
}
.form-row {
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
}
.form-label {
  font-size: 13px; font-weight: 600; color: var(--text-2);
}
.form-label.required::after { content: ' *'; color: var(--danger); }

.input-wrapper { position: relative; display: flex; align-items: center; }
.input-icon {
  position: absolute; left: 12px; color: var(--text-3); pointer-events: none; z-index: 1;
}
.input-wrapper .form-input { padding-left: 40px; }

.password-toggle {
  position: absolute; right: 10px;
  color: var(--text-3); padding: 4px;
  border-radius: var(--radius-sm);
  transition: color var(--transition);
}
.password-toggle:hover { color: var(--text-2); }

.form-input {
  width: 100%;
  padding: 11px 16px;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-md);
  color: var(--text);
  font-size: 14px;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
  outline: none;
  -webkit-appearance: none; appearance: none;
}
.form-input::placeholder { color: var(--text-3); }
.form-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.15);
  background: var(--bg-elevated);
}
.form-input.error { border-color: var(--danger); }

.form-textarea { resize: vertical; min-height: 80px; line-height: 1.5; }

.form-select {
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2364748B' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  background-size: 14px;
  padding-right: 32px;
}
.form-select option { background: var(--bg-elevated); color: var(--text); }

.form-error {
  font-size: 12px; color: var(--danger); min-height: 16px;
}

/* ----------------------------------------------------------------
   8. BUTTONS
   ---------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 18px;
  border-radius: var(--radius-md);
  font-size: 14px; font-weight: 600;
  transition: all var(--transition);
  cursor: pointer; border: none;
  white-space: nowrap; line-height: 1;
  font-family: var(--font);
}
.btn-full { width: 100%; justify-content: center; }

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  box-shadow: 0 4px 14px rgba(99,102,241,0.35);
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(99,102,241,0.45);
}
.btn-primary:active { transform: translateY(0); }

.btn-outline {
  background: transparent; color: var(--text-2);
  border: 1px solid var(--border-2);
}
.btn-outline:hover { background: var(--bg-hover); color: var(--text); border-color: var(--border-2); }

.btn-ghost { background: transparent; color: var(--text-2); }
.btn-ghost:hover { background: var(--bg-hover); color: var(--text); }

.btn-danger {
  background: var(--danger); color: white;
  box-shadow: 0 4px 12px rgba(239,68,68,0.25);
}
.btn-danger:hover { background: var(--danger-dark); box-shadow: 0 6px 18px rgba(239,68,68,0.35); }

.btn-sm { padding: 7px 14px; font-size: 13px; }

/* Spinner animation */
.spinner { animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Icon Button */
.icon-btn {
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-md);
  color: var(--text-2);
  transition: all var(--transition);
  flex-shrink: 0;
}
.icon-btn:hover { background: var(--bg-hover); color: var(--text); }

/* ----------------------------------------------------------------
   9. APP SHELL LAYOUT
   ---------------------------------------------------------------- */
.app-view {
  display: flex;
  height: 100vh;
  overflow: hidden;
}
.app-view[hidden] { display: none !important; }
.auth-view[hidden] { display: none !important; }

/* ----------------------------------------------------------------
   10. SIDEBAR
   ---------------------------------------------------------------- */
.sidebar {
  width: var(--sidebar-w);
  min-width: var(--sidebar-w);
  height: 100vh;
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed; top: 0; left: 0;
  z-index: 100;
  transition: transform var(--transition), background var(--transition);
  overflow: hidden;
}

/* Sidebar Brand */
.sidebar-brand {
  display: flex; align-items: center; gap: 12px;
  padding: 20px 20px;
  border-bottom: 1px solid var(--border);
  min-height: var(--topbar-h);
  flex-shrink: 0;
}
.brand-icon {
  width: 36px; height: 36px; flex-shrink: 0;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  color: white;
  box-shadow: 0 4px 12px rgba(99,102,241,0.4);
}
.brand-name {
  font-size: 17px; font-weight: 800; letter-spacing: -0.3px;
  color: var(--text); flex: 1;
}
.brand-highlight { color: var(--primary); }
.sidebar-close-btn { display: none; }

/* Sidebar Nav */
.sidebar-nav {
  padding: 12px 12px 0;
  flex-shrink: 0;
}
.nav-item {
  width: 100%;
  display: flex; align-items: center; gap: 12px;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  font-size: 14px; font-weight: 500;
  color: var(--text-2);
  transition: all var(--transition);
  text-align: left;
  position: relative;
}
.nav-item:hover { background: var(--bg-hover); color: var(--text); }
.nav-item.active {
  background: linear-gradient(135deg, rgba(99,102,241,0.18), rgba(139,92,246,0.1));
  color: var(--primary-light);
  border: 1px solid rgba(99,102,241,0.2);
}
.nav-icon { flex-shrink: 0; }

/* Sidebar Workspaces Section */
.sidebar-workspaces-section {
  flex: 1;
  overflow-y: auto;
  padding: 12px 12px;
  min-height: 0;
}
.sidebar-section-label {
  font-size: 11px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.8px;
  color: var(--text-3);
  padding: 8px 6px 6px;
}
.sidebar-ws-links {
  display: flex; flex-direction: column; gap: 2px;
}
.sidebar-ws-link {
  width: 100%;
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px;
  border-radius: var(--radius-md);
  font-size: 13px; font-weight: 500;
  color: var(--text-2);
  text-align: left;
  transition: all var(--transition);
  cursor: pointer; border: none; background: none;
  font-family: var(--font);
}
.sidebar-ws-link:hover { background: var(--bg-hover); color: var(--text); }
.sidebar-ws-link.active { color: var(--primary-light); background: rgba(99,102,241,0.1); }

.sidebar-ws-emoji {
  width: 24px; height: 24px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 6px; font-size: 14px; flex-shrink: 0;
}
.sidebar-ws-count {
  margin-left: auto;
  font-size: 11px; font-weight: 600;
  color: var(--text-3);
  background: var(--bg-elevated);
  padding: 2px 7px; border-radius: 99px;
}

/* Sidebar Bottom */
.sidebar-bottom {
  border-top: 1px solid var(--border);
  padding: 12px;
  flex-shrink: 0;
  display: flex; flex-direction: column; gap: 4px;
}
.sidebar-user {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  background: var(--bg-elevated);
}
.user-avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white; font-size: 13px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.user-info { flex: 1; overflow: hidden; }
.user-name {
  font-size: 13px; font-weight: 600; color: var(--text);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.user-email {
  font-size: 11px; color: var(--text-3);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.logout-btn { color: var(--text-3); }
.logout-btn:hover { color: var(--danger); background: rgba(239,68,68,0.1); }

/* Mobile Overlay */
.sidebar-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.55);
  backdrop-filter: blur(3px);
  z-index: 99;
}
.sidebar-overlay.show { display: block; }

/* ----------------------------------------------------------------
   11. MAIN CONTENT
   ---------------------------------------------------------------- */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-w);
  display: flex; flex-direction: column;
  height: 100vh;
  overflow: hidden;
  transition: margin-left var(--transition);
}

/* ----------------------------------------------------------------
   12. TOP BAR
   ---------------------------------------------------------------- */
.topbar {
  height: var(--topbar-h);
  min-height: var(--topbar-h);
  display: flex; align-items: center; gap: 16px;
  padding: 0 24px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  transition: background var(--transition);
}
.menu-btn { display: none; }
.topbar-title { flex: 1; }
.topbar-title h1 { font-size: 20px; font-weight: 700; }
.topbar-actions { display: flex; align-items: center; gap: 8px; }

.topbar-avatar {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white; font-size: 13px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
}

/* ----------------------------------------------------------------
   13. CONTENT AREA & VIEWS
   ---------------------------------------------------------------- */
.content-area {
  flex: 1;
  overflow-y: auto;
  padding: 28px;
  background: var(--bg);
  transition: background var(--transition);
}

.view {
  animation: fadeUp 0.25s ease;
  max-width: 1200px;
  margin: 0 auto;
}
.view[hidden] { display: none !important; }

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

/* ----------------------------------------------------------------
   14. DASHBOARD
   ---------------------------------------------------------------- */
.welcome-banner {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 24px 28px;
  margin-bottom: 24px;
  background: linear-gradient(135deg, rgba(99,102,241,0.15), rgba(139,92,246,0.08));
  border-color: rgba(99,102,241,0.25);
}
.welcome-text h2 { font-size: 22px; font-weight: 800; margin-bottom: 4px; }
.welcome-text p  { font-size: 14px; color: var(--text-2); }

/* Stats Row */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 28px;
}
.stat-card {
  padding: 22px;
  border-radius: var(--radius-lg);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  position: relative; overflow: hidden;
  transition: all var(--transition);
}
.stat-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--stat-color, var(--primary));
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}
.stat-card:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(0,0,0,0.2); }
.stat-card-label {
  font-size: 11px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.8px;
  color: var(--text-3); margin-bottom: 10px;
}
.stat-card-value {
  font-size: 34px; font-weight: 800; line-height: 1;
  font-variant-numeric: tabular-nums;
}
.stat-card-sub { font-size: 12px; color: var(--text-3); margin-top: 6px; }

/* Dashboard workspace previews */
.dashboard-section-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 16px;
}
.section-title { font-size: 17px; font-weight: 700; }

.dashboard-ws-previews {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}
.dashboard-ws-preview-card {
  padding: 20px;
  border-radius: var(--radius-lg);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  cursor: pointer;
  transition: all var(--transition);
}
.dashboard-ws-preview-card:hover {
  transform: translateY(-2px);
  border-color: var(--primary);
  box-shadow: 0 8px 24px rgba(99,102,241,0.15);
}
.dws-header {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 14px;
}
.dws-icon {
  width: 40px; height: 40px;
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; flex-shrink: 0;
}
.dws-name { font-size: 15px; font-weight: 700; }
.dws-count { font-size: 12px; color: var(--text-3); }
.dws-progress-wrap {
  height: 6px; background: var(--bg-elevated);
  border-radius: 99px; margin-bottom: 10px; overflow: hidden;
}
.dws-progress-bar {
  height: 100%; border-radius: 99px;
  transition: width 0.5s ease;
}
.dws-task-preview { display: flex; flex-direction: column; gap: 5px; }
.dws-task-item {
  display: flex; align-items: center; gap: 8px;
  font-size: 13px; color: var(--text-2);
}
.dws-task-dot { width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0; }
.dws-no-tasks { font-size: 13px; color: var(--text-3); font-style: italic; }

/* ----------------------------------------------------------------
   15. WORKSPACES GRID PAGE
   ---------------------------------------------------------------- */
.view-header {
  display: flex; align-items: flex-start; justify-content: space-between; gap: 16px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.view-title { font-size: 26px; font-weight: 800; margin-bottom: 4px; }
.view-subtitle { font-size: 14px; color: var(--text-2); }

/* The main workspace cards grid */
.workspaces-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

/* Individual Workspace Card */
.workspace-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: 24px;
  cursor: pointer;
  transition: all 0.25s ease;
  display: flex; flex-direction: column; gap: 16px;
  position: relative; overflow: hidden;
  animation: fadeUp 0.3s ease;
}
.workspace-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: var(--ws-color, var(--primary));
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}
.workspace-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.2);
  border-color: var(--ws-color, var(--primary));
}

.workspace-card-header {
  display: flex; align-items: flex-start; gap: 14px;
}
.workspace-card-icon {
  width: 52px; height: 52px;
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  font-size: 26px; flex-shrink: 0;
}
.workspace-card-meta { flex: 1; overflow: hidden; }
.workspace-card-name {
  font-size: 18px; font-weight: 800;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  margin-bottom: 3px;
}
.workspace-card-task-count { font-size: 13px; color: var(--text-2); }

/* Card Remove Button */
.workspace-card-remove {
  width: 30px; height: 30px;
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-3);
  transition: all var(--transition);
  opacity: 0;
  flex-shrink: 0;
  border: none; background: none; cursor: pointer;
}
.workspace-card:hover .workspace-card-remove { opacity: 1; }
.workspace-card-remove:hover { background: rgba(239,68,68,0.15); color: var(--danger); }

/* Progress within workspace card */
.workspace-card-progress {
  display: flex; flex-direction: column; gap: 6px;
}
.progress-bar-wrap {
  height: 8px; background: var(--bg-elevated);
  border-radius: 99px; overflow: hidden;
}
.progress-bar {
  height: 100%;
  border-radius: 99px;
  background: var(--ws-color, var(--primary));
  transition: width 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.progress-label {
  display: flex; justify-content: space-between;
  font-size: 12px; color: var(--text-3);
}
.progress-pct { font-weight: 600; color: var(--text-2); }

/* Card Open Arrow */
.workspace-card-footer {
  display: flex; align-items: center; justify-content: space-between;
}
.workspace-card-open {
  display: flex; align-items: center; gap: 6px;
  font-size: 13px; font-weight: 600; color: var(--text-3);
  transition: color var(--transition), gap var(--transition);
}
.workspace-card:hover .workspace-card-open {
  color: var(--primary-light);
  gap: 10px;
}

/* ----------------------------------------------------------------
   16. WORKSPACE DETAIL VIEW
   ---------------------------------------------------------------- */
.ws-detail-header {
  margin-bottom: 24px;
}
.back-btn {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 13px; font-weight: 500; color: var(--text-3);
  padding: 6px 0; background: none; border: none; cursor: pointer;
  font-family: var(--font);
  margin-bottom: 16px;
  transition: color var(--transition);
}
.back-btn:hover { color: var(--primary-light); }

.ws-detail-title-row {
  display: flex; align-items: center; gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.ws-detail-icon {
  width: 52px; height: 52px;
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  font-size: 28px; flex-shrink: 0;
}
.ws-detail-name { font-size: 24px; font-weight: 800; }
.ws-detail-meta { font-size: 13px; color: var(--text-3); margin-top: 2px; }
.ws-detail-actions { display: flex; gap: 8px; margin-left: auto; }

.ws-progress-bar-wrap {
  height: 8px; background: var(--bg-elevated);
  border-radius: 99px; overflow: hidden; margin-bottom: 24px;
}
.ws-progress-bar {
  height: 100%; border-radius: 99px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transition: width 0.5s ease;
}

/* Task Toolbar */
.task-toolbar {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  margin-bottom: 20px; flex-wrap: wrap;
}
.task-filters { display: flex; gap: 6px; flex-wrap: wrap; }

.filter-chip {
  padding: 6px 14px;
  border-radius: 99px;
  font-size: 13px; font-weight: 500;
  border: 1px solid var(--border-2);
  color: var(--text-2); background: none;
  cursor: pointer; font-family: var(--font);
  transition: all var(--transition);
}
.filter-chip:hover { background: var(--bg-hover); color: var(--text); }
.filter-chip.active {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white; border-color: transparent;
  box-shadow: 0 2px 10px rgba(99,102,241,0.3);
}

/* Task List */
.task-list-container {
  display: flex; flex-direction: column; gap: 10px;
}

/* Individual Task Item */
.task-item {
  display: flex; align-items: flex-start; gap: 14px;
  padding: 16px 20px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
  animation: fadeUp 0.2s ease;
}
.task-item:hover {
  border-color: rgba(99,102,241,0.25);
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
}
.task-item.done { opacity: 0.6; }
.task-item.done .task-item-title { text-decoration: line-through; color: var(--text-3); }

/* Custom Checkbox */
.task-checkbox {
  width: 20px; height: 20px; min-width: 20px;
  border-radius: 6px;
  border: 2px solid var(--border-2);
  background: transparent;
  cursor: pointer;
  appearance: none; -webkit-appearance: none;
  margin-top: 1px;
  transition: all var(--transition);
}
.task-checkbox:checked {
  background: var(--success);
  border-color: var(--success);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
  background-size: 65%; background-repeat: no-repeat; background-position: center;
}

.task-item-body { flex: 1; overflow: hidden; }
.task-item-title {
  font-size: 15px; font-weight: 600;
  margin-bottom: 4px;
  word-break: break-word;
}
.task-item-desc {
  font-size: 13px; color: var(--text-2);
  margin-bottom: 8px; line-height: 1.5;
  word-break: break-word;
}
.task-item-meta {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
}
.task-item-actions {
  display: flex; gap: 4px; opacity: 0;
  transition: opacity var(--transition);
  flex-shrink: 0;
}
.task-item:hover .task-item-actions { opacity: 1; }

/* Priority Badge */
.priority-pill {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 3px 10px;
  border-radius: 99px; font-size: 11px; font-weight: 700;
  letter-spacing: 0.3px;
}
.priority-pill.low      { background: rgba(16,185,129,0.15); color: var(--priority-low); }
.priority-pill.medium   { background: rgba(245,158,11,0.15); color: var(--priority-medium); }
.priority-pill.high     { background: rgba(239,68,68,0.15);  color: var(--priority-high); }
.priority-pill.critical { background: rgba(124,58,237,0.15); color: var(--priority-critical); }

/* Status Pill */
.status-pill {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 3px 10px;
  border-radius: 99px; font-size: 11px; font-weight: 600;
}
.status-pill.todo        { background: rgba(100,116,139,0.15); color: #94A3B8; }
.status-pill.in-progress { background: rgba(59,130,246,0.15);  color: #60A5FA; }
.status-pill.done        { background: rgba(16,185,129,0.15);   color: var(--success); }

/* Due date */
.due-date-pill {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 12px; color: var(--text-3);
}
.due-date-pill.overdue { color: var(--danger); }

/* ----------------------------------------------------------------
   17. EMPTY STATES
   ---------------------------------------------------------------- */
.empty-state {
  display: flex; flex-direction: column; align-items: center;
  justify-content: center; text-align: center;
  padding: 60px 20px; gap: 16px;
}
.empty-icon { color: var(--text-3); }
.empty-state h3 { font-size: 20px; font-weight: 700; }
.empty-state p  { font-size: 14px; color: var(--text-2); line-height: 1.6; max-width: 340px; }

/* ----------------------------------------------------------------
   18. SETTINGS
   ---------------------------------------------------------------- */
.settings-container {
  display: flex; flex-direction: column; gap: 20px;
  max-width: 640px;
}
.settings-card { padding: 28px; }
.settings-card-title {
  font-size: 16px; font-weight: 700;
  display: flex; align-items: center; gap: 10px;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}
.settings-avatar-row {
  display: flex; align-items: center; gap: 16px;
  margin-bottom: 20px;
}
.settings-avatar {
  width: 52px; height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white; font-size: 20px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.settings-avatar-name { font-size: 16px; font-weight: 700; margin-bottom: 3px; }
.settings-avatar-email { font-size: 13px; color: var(--text-3); }

.settings-row {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}
.settings-row:last-child { border-bottom: none; padding-bottom: 0; }
.settings-row-label { font-size: 14px; font-weight: 600; }
.settings-row-label.danger { color: var(--danger); }
.settings-row-desc { font-size: 12px; color: var(--text-3); margin-top: 2px; }
.danger-row { background: rgba(239,68,68,0.04); border-radius: var(--radius-md); padding: 14px !important; margin-top: 8px; border: 1px solid rgba(239,68,68,0.1) !important; }

/* Toggle Switch */
.toggle-switch { position: relative; display: inline-block; width: 46px; height: 26px; cursor: pointer; }
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-track {
  position: absolute; inset: 0;
  background: var(--border-2); border-radius: 99px;
  transition: background var(--transition);
}
.toggle-track::before {
  content: '';
  position: absolute; width: 20px; height: 20px;
  left: 3px; top: 3px;
  background: white; border-radius: 50%;
  transition: transform var(--transition);
  box-shadow: 0 2px 6px rgba(0,0,0,0.2);
}
.toggle-switch input:checked + .toggle-track { background: var(--primary); }
.toggle-switch input:checked + .toggle-track::before { transform: translateX(20px); }

/* About */
.about-block { display: flex; align-items: flex-start; gap: 16px; }
.about-logo-wrap {
  width: 60px; height: 60px; flex-shrink: 0;
  background: linear-gradient(135deg, rgba(99,102,241,0.2), rgba(139,92,246,0.1));
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  color: var(--primary);
  border: 1px solid rgba(99,102,241,0.2);
}
.about-block h4 { font-size: 16px; font-weight: 700; margin-bottom: 6px; }
.about-block p  { font-size: 13px; color: var(--text-2); line-height: 1.5; }
.version-tag {
  display: inline-flex; padding: 2px 8px;
  background: rgba(99,102,241,0.15); color: var(--primary-light);
  border-radius: 99px; font-size: 11px; font-weight: 700; margin-left: 8px;
}
.about-tech { font-size: 12px !important; color: var(--text-3) !important; margin-top: 8px !important; font-family: monospace; letter-spacing: 0.3px; }

/* ----------------------------------------------------------------
   19. MODAL
   ---------------------------------------------------------------- */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.65);
  backdrop-filter: blur(8px);
  z-index: 200;
  display: flex; align-items: center; justify-content: center;
  padding: 16px;
  animation: fadeIn 0.2s ease;
}
.modal-overlay[hidden] { display: none !important; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.modal-panel {
  width: 100%; max-width: 520px;
  max-height: 90vh; overflow-y: auto;
  animation: modalPop 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.modal-sm { max-width: 380px; }
@keyframes modalPop {
  from { opacity: 0; transform: scale(0.9) translateY(20px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}
.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 24px 16px;
  border-bottom: 1px solid var(--border);
}
.modal-title { font-size: 18px; font-weight: 700; }
.modal-body {
  padding: 20px 24px;
  display: flex; flex-direction: column; gap: 18px;
}
.modal-footer {
  display: flex; justify-content: flex-end; gap: 10px;
  padding-top: 8px;
}
.confirm-message { font-size: 14px; color: var(--text-2); line-height: 1.6; }

/* ----------------------------------------------------------------
   20. EMOJI & COLOR PICKERS
   ---------------------------------------------------------------- */
.emoji-grid {
  display: flex; flex-wrap: wrap; gap: 6px;
}
.emoji-btn {
  width: 40px; height: 40px;
  border-radius: var(--radius-md);
  font-size: 20px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; background: var(--input-bg); border: 2px solid transparent;
  transition: all var(--transition);
}
.emoji-btn:hover { background: var(--bg-hover); transform: scale(1.1); }
.emoji-btn.selected { border-color: var(--primary); background: rgba(99,102,241,0.15); }

.color-swatches { display: flex; flex-wrap: wrap; gap: 8px; }
.color-swatch {
  width: 30px; height: 30px; border-radius: 50%;
  cursor: pointer; border: 3px solid transparent;
  transition: all var(--transition);
}
.color-swatch:hover { transform: scale(1.15); }
.color-swatch.selected { border-color: white; box-shadow: 0 0 0 2px var(--primary), 0 3px 10px rgba(0,0,0,0.3); }

/* ----------------------------------------------------------------
   21. TOAST
   ---------------------------------------------------------------- */
.toast-container {
  position: fixed; bottom: 24px; right: 24px;
  z-index: 999;
  display: flex; flex-direction: column; gap: 10px;
  pointer-events: none;
}
.toast {
  display: flex; align-items: center; gap: 12px;
  padding: 13px 20px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-2);
  border-left: 4px solid var(--toast-color, var(--primary));
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
  font-size: 14px; font-weight: 500;
  min-width: 240px; max-width: 360px;
  pointer-events: auto;
  animation: toastIn 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes toastIn {
  from { opacity: 0; transform: translateX(40px); }
  to   { opacity: 1; transform: translateX(0); }
}
.toast.out { animation: toastOut 0.25s ease forwards; }
@keyframes toastOut {
  to { opacity: 0; transform: translateX(40px); max-height: 0; padding: 0; margin: 0; }
}
.toast-success { --toast-color: var(--success); }
.toast-error   { --toast-color: var(--danger); }
.toast-warning { --toast-color: var(--warning); }
.toast-info    { --toast-color: var(--info); }

/* ----------------------------------------------------------------
   22. RESPONSIVE
   ---------------------------------------------------------------- */
@media (max-width: 900px) {
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .welcome-banner { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 768px) {
  :root { --sidebar-w: 270px; }

  .sidebar {
    transform: translateX(-100%);
    box-shadow: none;
  }
  .sidebar.open {
    transform: translateX(0);
    box-shadow: 8px 0 40px rgba(0,0,0,0.5);
  }
  .sidebar-close-btn { display: flex !important; }
  .menu-btn { display: flex !important; }
  .main-content { margin-left: 0; }

  .topbar { padding: 0 16px; }
  .content-area { padding: 16px; }
  .workspaces-grid { grid-template-columns: 1fr 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .ws-detail-actions { flex-direction: column; }
  .modal-panel { max-width: 100%; }
  .task-toolbar { flex-direction: column; align-items: stretch; }
  .task-toolbar .btn { width: 100%; justify-content: center; }
}

@media (max-width: 480px) {
  .stats-row { grid-template-columns: 1fr 1fr; gap: 10px; }
  .workspaces-grid { grid-template-columns: 1fr; }
  .welcome-banner { padding: 18px; }
  .auth-form { padding: 20px; }
  .dashboard-ws-previews { grid-template-columns: 1fr; }
}

/* ----------------------------------------------------------------
   23. PWA INSTALL BANNER
   ---------------------------------------------------------------- */
.pwa-install-banner {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 998;
  width: calc(100% - 48px);
  max-width: 480px;
  background: var(--bg-elevated);
  border: 1px solid rgba(99,102,241,0.3);
  border-radius: var(--radius-xl);
  box-shadow: 0 16px 48px rgba(0,0,0,0.4), 0 0 0 1px rgba(99,102,241,0.1);
  backdrop-filter: blur(20px);
  animation: bannerSlideUp 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
  overflow: hidden;
}
.pwa-install-banner::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary), #EC4899);
}
@keyframes bannerSlideUp {
  from { opacity: 0; transform: translateX(-50%) translateY(80px); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}

.pwa-install-inner {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
}

.pwa-install-icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

.pwa-install-text {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 3px;
  overflow: hidden;
}
.pwa-install-text strong {
  font-size: 14px; font-weight: 700;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.pwa-install-text span {
  font-size: 12px;
  color: var(--text-2);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

.pwa-install-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

/* ----------------------------------------------------------------
   24. PWA SAFE AREA (notch / home indicator on phones)
   ---------------------------------------------------------------- */
@supports (padding: env(safe-area-inset-bottom)) {
  .content-area {
    padding-bottom: calc(28px + env(safe-area-inset-bottom));
  }
  .pwa-install-banner {
    bottom: calc(24px + env(safe-area-inset-bottom));
  }
  .toast-container {
    bottom: calc(24px + env(safe-area-inset-bottom));
  }
}

/* ----------------------------------------------------------------
   25. PWA STANDALONE MODE — hide browser chrome elements
   ---------------------------------------------------------------- */
@media (display-mode: standalone) {
  /* Extra top padding for status bar */
  .sidebar-brand { padding-top: max(20px, env(safe-area-inset-top)); }
  .topbar        { padding-top: env(safe-area-inset-top); height: calc(var(--topbar-h) + env(safe-area-inset-top)); }
}