:root {
      --primary-color: #4361ee;
      --primary-dark: #3a56d4;
      --secondary-color: #7209b7;
      --success-color: #2ecc71;
      --warning-color: #f39c12;
      --danger-color: #e74c3c;
      --dark-color: #2c3e50;
      --light-color: #f8f9fa;
      --gray-color: #95a5a6;
      --border-radius: 8px;
      --box-shadow: 2px 2px 12px rgba(0, 0, 0, 0.1);
      --transition: all 0.3s ease;
      --goals-color: #ff6b6b;
      --goals-light: #ffdede;
    }

    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    }

    body {
      background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
      color: var(--dark-color);
      min-height: 100vh;
      padding: 20px;
    }

    .container {
      max-width: 1000px;
      margin: 0 auto;
      background-color: white;
      border-radius: var(--border-radius);
      box-shadow: var(--box-shadow);
      overflow: hidden;
    }

    header {
      background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
      color: white;
      padding: 30px 20px;
      text-align: center;
      position: relative;
    }

    .auth-container {
      position: absolute;
      top: 20px;
      right: 20px;
      display: flex;
      gap: 10px;
      align-items: center;
    }

    .user-info {
      gap: 10px;
      background: rgba(255, 255, 255, 0.2);
      padding: 8px 15px;
      border-radius: 30px;
    }

    .user-avatar {
      width: 32px;
      height: 32px;
      border-radius: 50%;
      background-color: white;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary-color);
      font-weight: bold;
    }

    .auth-btn {
      background: rgba(255, 255, 255, 0.2);
      color: white;
      border: none;
      padding: 8px 16px;
      border-radius: 30px;
      cursor: pointer;
      font-weight: 600;
      transition: var(--transition);
      gap: 8px;
    }

    .auth-in {
      background: rgba(255, 255, 255, 0.2);
      color: white;
      border: none;
      padding: 8px 16px;
      border-radius: 30px;
      cursor: pointer;
      font-weight: 600;
      transition: var(--transition);
      gap: 8px;
    }

    .back-btn {
      position: absolute;
      background: rgba(255, 255, 255, 0.2);
      color: white;
      border: none;
      padding: 8px 16px;
      border-radius: 30px;
      cursor: pointer;
      font-weight: 600;
      transition: var(--transition);
      display: flex;
      align-items: center;
      gap: 5px;
      display: none;
      margin-top: -30px;
    }

    .back-btn:hover {
      background: rgba(255, 255, 255, 0.3);
    }

    .auth-btn:hover {
      background: rgba(255, 255, 255, 0.3);
    }

    .auth-btn.sign-out {
      background: rgba(255, 255, 255, 0.1);
    }

    .auth-btn.sign-out:hover {
      background: rgba(255, 255, 255, 0.15);
    }

    header h1 {
      font-size: 2.5rem;
      margin-bottom: 10px;
      font-weight: 700;
    }

    .subtitle {
      font-size: 1.1rem;
      max-width: 600px;
      margin: 0 auto 30px;
      opacity: 0.9;
    }

    .stats {
      display: flex;
      justify-content: center;
      gap: 20px;
      margin-top: 20px;
    }

    .stat-card {
      background-color: rgba(255, 255, 255, 0.15);
      backdrop-filter: blur(10px);
      border-radius: var(--border-radius);
      padding: 15px 20px;
      width: 120px;
      text-align: center;
      transition: var(--transition);
    }

    .stat-card:hover {
      transform: translateY(-5px);
      background-color: rgba(255, 255, 255, 0.25);
    }

    .stat-number {
      font-size: 2rem;
      font-weight: 700;
      margin-bottom: 5px;
    }

    .stat-label {
      font-size: 0.9rem;
      opacity: 0.9;
    }

    .action-bar {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px;
      background-color: white;
      border-bottom: 1px solid #eee;
      flex-wrap: wrap;
      gap: 15px;
    }

    .task-filters {
      display: flex;
      gap: 10px;
    }

    .filter-btn {
      padding: 8px 16px;
      border-radius: 30px;
      background-color: #f0f2f5;
      cursor: pointer;
      font-weight: 500;
      transition: var(--transition);
    }

    .filter-btn:hover {
      background-color: #e4e6e9;
    }

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

    .btn {
      padding: 10px 20px;
      border-radius: var(--border-radius);
      border: none;
      font-weight: 600;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      transition: var(--transition);
    }

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

    .btn-primary:hover {
      background-color: var(--primary-dark);
      transform: translateY(-2px);
    }

   .btn-goals
   {
    background-color: yellow;
    border: thin solid black;
    color: black;
   }
    .btn-goals:hover {
      background-color: #ff5252;
      transform: translateY(-2px);
    }

    .btn-icon {
      font-size: 0.9rem;
    }

    .task-list {
      list-style: none;
      padding: 20px;
      min-height: 300px;
    }

    .task-item {
      background-color: white;
      border-radius: var(--border-radius);
      padding: 15px 20px;
      margin-bottom: 15px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      box-shadow: 2px 2px 8px rgb(0, 0, 0);
      border-left: 4px solid var(--primary-color);
      transition: var(--transition);
    }

    .task-item:hover {
      transform: translateY(-3px);
    }

    .task-item.completed {
      border-left-color: var(--success-color);
      opacity: 0.85;
    }

    .task-content {
      flex: 1;
    }

    .task-title {
      font-size: 1.1rem;
      font-weight: 600;
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 10px;
      flex-wrap: wrap;
    }

    .task-title.completed {
      text-decoration: line-through;
      color: var(--gray-color);
    }

    .task-time {
      display: flex;
      align-items: center;
      gap: 8px;
      color: var(--gray-color);
      font-size: 0.9rem;
    }

    .task-actions {
      display: flex;
      gap: 10px;
    }

    .action-btn {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      border: none;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      background-color: #f0f2f5;
      color: var(--dark-color);
      transition: var(--transition);
    }

    .action-btn:hover {
      transform: scale(1.1);
    }

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

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

    .status-badge {
      font-size: 0.75rem;
      padding: 4px 10px;
      border-radius: 30px;
      font-weight: 600;
    }

    .completed-badge {
      background-color: #e8faf0;
      color: var(--success-color);
    }

    .pending-badge {
      background-color: #fef9e7;
      color: var(--warning-color);
    }

    .urgent-badge {
      background-color: #fdecea;
      color: var(--danger-color);
      animation: pulse 1.5s infinite;
    }

    .goal-badge {
      background-color: var(--goals-light);
      color: var(--goals-color);
    }

    @keyframes pulse {
      0% {
        opacity: 1;
      }

      50% {
        opacity: 0.7;
      }

      100% {
        opacity: 1;
      }
    }

    .empty-state {
      text-align: center;
      padding: 50px 20px;
      color: var(--gray-color);
    }

    .empty-state i {
      font-size: 4rem;
      margin-bottom: 20px;
      opacity: 0.3;
    }

    .empty-state h3 {
      font-size: 1.5rem;
      margin-bottom: 10px;
      color: var(--dark-color);
    }

    .modal-overlay {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background-color: rgba(0, 0, 0, 0.5);
      display: flex;
      align-items: center;
      justify-content: center;
      z-index: 1000;
      display: none;
    }

    .add-task-modal,
    .delete-modal,
    .auth-modal,
    .goals-modal {
      background-color: white;
      border-radius: var(--border-radius);
      box-shadow: var(--box-shadow);
      width: 100%;
      max-width: 500px;
      padding: 30px;
      position: relative;
      animation: modalIn 0.3s ease-out;
    }

    @keyframes modalIn {
      from {
        opacity: 0;
        transform: translateY(-20px);
      }

      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    .close-modal {
      position: absolute;
      top: 20px;
      right: 20px;
      width: 36px;
      height: 36px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      background-color: #f0f2f5;
      transition: var(--transition);
    }

    .close-modal:hover {
      background-color: #e4e6e9;
      transform: rotate(90deg);
    }

    .modal-title {
      margin-bottom: 25px;
      text-align: center;
      color: var(--dark-color);
    }

    .form-group {
      margin-bottom: 20px;
    }

    .form-group label {
      display: block;
      margin-bottom: 8px;
      font-weight: 500;
      color: var(--dark-color);
    }

    .form-group input,
    .form-group select {
      width: 100%;
      padding: 12px 15px;
      border-radius: var(--border-radius);
      border: 1px solid #ddd;
      font-size: 1rem;
      transition: var(--transition);
    }

    .form-group input:focus,
    .form-group select:focus {
      outline: none;
      border-color: var(--primary-color);
      box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.2);
    }

    .delete-modal h3 {
      text-align: center;
      margin-bottom: 15px;
      color: var(--dark-color);
    }

    .delete-modal p {
      text-align: center;
      margin-bottom: 25px;
      color: var(--gray-color);
      line-height: 1.6;
    }

    .modal-actions {
      display: flex;
      gap: 15px;
    }

    .modal-btn {
      flex: 1;
      padding: 12px;
      border-radius: var(--border-radius);
      border: none;
      font-weight: 600;
      cursor: pointer;
      transition: var(--transition);
    }

    .cancel-btn {
      background-color: #f0f2f5;
      color: var(--dark-color);
    }

    .cancel-btn:hover {
      background-color: #e4e6e9;
    }

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

    .confirm-btn:hover {
      background-color: #c0392b;
    }

    .floating-add {
      position: fixed;
      bottom: 30px;
      right: 30px;
      width: 60px;
      height: 60px;
      border-radius: 50%;
      background-color: var(--primary-color);
      color: white;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      box-shadow: 0 4px 15px rgba(67, 97, 238, 0.4);
      cursor: pointer;
      z-index: 100;
      transition: var(--transition);
    }

    .floating-add:hover {
      background-color: var(--primary-dark);
      transform: translateY(-5px) rotate(90deg);
      box-shadow: 0 6px 20px rgba(67, 97, 238, 0.5);
    }

    .toast {
      position: fixed;
      bottom: 20px;
      left: 50%;
      transform: translateX(-50%) translateY(100px);
      background-color: var(--success-color);
      color: white;
      padding: 12px 25px;
      border-radius: var(--border-radius);
      box-shadow: var(--box-shadow);
      z-index: 200;
      opacity: 0;
      transition: all 0.4s ease;
    }

    .toast.show {
      opacity: 1;
      transform: translateX(-50%) translateY(0);
    }

    .toast.error {
      background-color: var(--danger-color);
    }

    /* Calendar Styles */
    .calendar-view {
      padding: 20px;
      display: block;
    }

    .calendar-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 20px;
      padding: 0 10px;
    }

    .calendar-title {
      font-size: 1.5rem;
      font-weight: 600;
    }

    .calendar-nav button {
      background: none;
      border: none;
      font-size: 1.2rem;
      cursor: pointer;
      padding: 5px 15px;
      border-radius: var(--border-radius);
      transition: var(--transition);
    }

    .calendar-nav button:hover {
      background-color: #f0f2f5;
    }

    .calendar-grid {
      display: grid;
      grid-template-columns: repeat(7, 1fr);
      gap: 5px;
    }

    .calendar-day-header {
      text-align: center;
      padding: 10px;
      font-weight: 600;
      color: var(--primary-color);
      background-color: #f0f4ff;
      border-radius: var(--border-radius);
    }

    .calendar-day {
      aspect-ratio: 1/1;
      border-radius: 10px;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      transition: var(--transition);
      position: relative;
      overflow: hidden;
      background-color: #f8f9fa;
      border: 1px solid #eee;
    }

    @media (max-width:480px) {
      .calendar-day {
        border-radius: 5px;
      }
    }

    .calendar-day:hover {
      background-color: #eef2ff;
      transform: translateY(-3px);
    }

    .calendar-day.today {
      background-color: #e6f7ff;
      border: 2px solid var(--primary-color);
    }

    .calendar-day.has-tasks {
      background-color: #fff8e6;
    }

    .calendar-day.all-completed {
      background-color: #00ff007f;
      box-shadow: 0 0 10px rgb(208, 255, 0);
    }

    .calendar-day.has-pending {
      background-color: #ff00002c;
      box-shadow: 0 0 10px rgb(231, 77, 60);
    }

    .day-number {
      font-size: 1.2rem;
      font-weight: 600;
      margin-bottom: 5px;
    }

    .task-indicator {
      display: flex;
      gap: 3px;
      font-size: 0.7rem;
    }

    .completed-indicator {
      color: var(--success-color);
    }

    .pending-indicator {
      color: var(--danger-color);
    }

    .task-interface {
      display: none;
    }

    .selected-date {
      font-size: 1.2rem;
      font-weight: 600;
      text-align: center;
      margin-top: 20px;
      color: rgba(0, 0, 0, 0.408);
    }

    /* Daily Goals Section */
    .goals-list {
      list-style: none;
      padding: 20px;
      max-height: 300px;
      overflow-y: auto;
      background-color: #fffaf0;
      border-radius: var(--border-radius);
      margin-bottom: 20px;
    }

    .goal-item {
      background-color: var(--goals-light);
      border-radius: var(--border-radius);
      padding: 15px 20px;
      margin-bottom: 15px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
      border-left: 4px solid var(--goals-color);
      transition: var(--transition);
    }

    .goal-item:hover {
      transform: translateY(-2px);
    }

    .goal-content {
      flex: 1;
    }

    .goal-title {
      font-size: 1.1rem;
      font-weight: 600;
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 10px;
      flex-wrap: wrap;
    }

    .goal-time {
      display: flex;
      align-items: center;
      gap: 8px;
      color: var(--goals-color);
      font-size: 0.9rem;
      font-weight: 500;
    }

    .goal-actions {
      display: flex;
      gap: 10px;
    }

    .goal-badge {
      background-color: var(--goals-light);
      color: var(--goals-color);
    }

    /* Responsive design */
    @media (max-width: 768px) {
      .stats {
        flex-direction: column;
        align-items: center;
      }

      .action-bar {
        flex-direction: column;
        align-items: stretch;
      }

      .task-filters {
        justify-content: center;
      }

      .btn {
        width: 100%;
      }

      .auth-container {
        position: static;
        margin-top: 20px;
      }

      .calendar-day-header {
        font-size: 0.8rem;
        padding: 5px;
      }

      .day-number {
        font-size: 1rem;
      }
    }

    @media (max-width: 480px) {
      .task-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
      }

      .task-actions {
        align-self: flex-end;
      }

      .modal-actions {
        flex-direction: column;
      }

      .stats {
        display: flex;
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        gap: 5px;
        margin-top: 20px;
      }

      .stat-card {
        background-color: rgba(255, 255, 255, 0.15);
        backdrop-filter: blur(10px);
        border-radius: var(--border-radius);
        padding: 8px 5px;
        min-width: 80px;
        flex: 1;
        text-align: center;
        transition: var(--transition);
      }

      .stat-number {
        font-size: 1.2rem;
        font-weight: 700;
        margin-bottom: 3px;
      }

      .stat-label {
        font-size: 0.6rem;
        opacity: 0.9;
      }

      header {
        padding: 10px;
      }

      .auth-container {
        flex-wrap: wrap;
      }

      .user-avatar {
        width: 32px;
        height: 32px;
        border-radius: 50%;
        background-color: white;
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--primary-color);
        font-weight: bold;
      }

      .user-info {
        gap: 10px;
        background: rgba(255, 255, 255, 0.2);
        padding: 8px 15px;
        border-radius: 30px;
        margin-right: 38%;
        margin-top: -8%;
      }

      .auth-btn {
        background: rgba(255, 255, 255, 0.2);
        color: white;
        border: none;
        padding: 8px 16px;
        border-radius: 30px;
        cursor: pointer;
        font-weight: 600;
        transition: var(--transition);
        display: flex;
        gap: 8px;
        margin-top: -10%;
      }

      .auth-in {
        background: rgba(255, 255, 255, 0.2);
        color: white;
        border: none;
        padding: 8px 16px;
        border-radius: 30px;
        cursor: pointer;
        font-weight: 600;
        transition: var(--transition);
        gap: 8px;
        margin-top: -6%;
        margin-left: 68%;
      }

      .calendar-day-header {
        font-size: 0.7rem;
        padding: 3px;
      }

      .day-number {
        font-size: 0.9rem;
      }

      .task-indicator {
        font-size: 0.6rem;
      }
    }
    .goal
    {
      float: right;
      background-color: yellow;
      box-shadow: 2px 2px 8px black;
      border: none;
      border-radius: 5px;
      padding: 5px;
      margin-top: -10px;
    }
    @media (max-width:480px) 
    {
       .goal
    {
      float: right;
      margin-top: -20px;
    }  
    }