main {
  max-width: 1200px;
  margin: 50px auto;
  padding: 0 var(--space-4);
}

@media (max-width: 800px) {
  main {
    margin-top: 20px;
  }
}

.dashboard-hero {
  background-color: #f0f0f0;
  padding: var(--space-12);
  text-align: center;

  h3 {
    display: inline-flex;
    align-items: center;
    gap: 20px;
  }
}

@media (max-width: 800px) {
  .dashboard-hero {
    padding: var(--space-6);
  }
}

.dashboard_header {
  width: 100%;
  margin-bottom: 50px;
  /* background: var(--color-primary) url("../images/header-bg.avif") no-repeat center/cover; */
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-16);
  box-shadow: var(--shadow-primary);
  border-radius: var(--radius-lg);
  /* overflow: hidden; */
  position: relative;
}

.dashboard_header .overlay {
  position: absolute;
  display: block;
  inset: 0;
  width: 100%;
  height: 100%;
  background-color: var(--color-primary);
  opacity: .6;
}

.dashboard_header .view-menu {
  display: none;
}

.dashboard_header .student_profile {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  gap: var(--space-4);

  h4 {
    color: var(--color-accent);
  }
}

.dashboard_header .student_profile .profile_img {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-full);
  padding: var(--space-1);
  background-color: var(--color-bg);
  position: relative;

  img {
    width: 100%;
    height: 100%;
    border-radius: var(--radius-full);
    object-fit: cover;
  }

  .profile_badge {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 20px;
    height: 20px;
    border-radius: var(--radius-full);
    background-color: var(--color-success);
    border: 2px solid var(--color-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-accent);
    color: var(--color-text-inverse);
    padding: var(--space-1);
    font-size: var(--font-size-xs);
  }
}

.dashboard_header .student_profile .profile_info {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: var(--space-0);
  flex-direction: column;
  position: relative;

  h4 {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: var(--space-2);
    color: var(--color-text-inverse);

    .edit_profile {
      font-size: var(--font-size-xs);
      color: var(--color-accent);
      cursor: pointer;
      transition: color var(--transition-base);

      &:hover {
        color: var(--color-accent-dark);
      }
    }
  }

  p {
    color: var(--color-text-inverse);
  }
}

.dashboard_header .dashboard_links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);

  a.link {
    background-color: var(--color-primary-dark);
    height: 40px;
    width: 40px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
    transition: color var(--transition-base);
    position: relative;

    &:hover,
    &:active {
      color: var(--color-accent-dark);
      box-shadow: var(--shadow-accent);
    }
  }

  a.link:nth-child(1):after {
    content: "5";
    position: absolute;
    padding: 5px;
    height: 15px;
    width: 15px;
    display: flex;
    align-items: center;
    justify-self: center;
    border-radius: var(--radius-full);
    background-color: var(--color-error);
    top: 0;
    right: 0;
    font-size: 8px;
  }
}

@media (max-width: 800px) {
  .dashboard_header {
    padding: var(--space-4);
    position: relative;
    /* padding-left: 20%; */
  }

  /* header .student_profile {
    margin-left: 100px;
  } */

  .dashboard_header .view-menu {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    top: 110%;
    left: 0;

    button {
      padding: var(--space-2) var(--space-4);
      border-radius: var(--radius-md);
      width: 100%;
      height: 100%;
      border: none;
      background-color: var(--color-primary-dark);
      color: var(--color-accent-dark);
      /* font-size: var(--font-size-4xl); */
      font-weight: var(--font-weight-extrabold);
    }
  }

  .dashboard_header .dashboard_links {

    .link:nth-child(2),
    .link:nth-child(3) {
      display: none;
    }
  }
}

@media (max-width: 315px) {
  .dashboard_header .dashboard_links {
    display: none;
  }
}

.main-content-container {
  display: grid;
  grid-template-columns: 280px 3fr;
  gap: var(--space-8);
  min-height: 100vh;
  overflow: hidden;
}

/* Sidebar */
.sidebar {
  width: 100%;
  background: linear-gradient(135deg,
      var(--color-primary) 0%,
      var(--color-primary-dark) 100%);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: transform 0.3s ease;
  position: sticky;
  top: 10px;
  z-index: var(--z-dropdown);
  height: fit-content;
}

.sidebar .sidebar_header {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  /* gap: var(--space-4); */
  flex-direction: column;
  margin-bottom: var(--space-8);
  width: 100%;

  h3 {
    width: 80%;
    align-self: flex-start;
    color: var(--color-text-inverse);
  }

  span {
    align-self: flex-end;
    color: var(--color-accent);
    margin-top: -10px;
    font-family: "Courier New", Courier, monospace;
  }
}

.sidebar nav,
.sidebar nav ul {
  width: 100%;
  height: 100%;
  list-style: none;
}

.sidebar nav ul {
  display: flex;
  align-items: flex-start;
  flex-direction: column;
  gap: var(--space-2);
}

.sidebar nav ul li {
  width: 100%;
}

.sidebar {
  .dashboard-link {
    width: 100%;
    display: flex;
    align-items: center;
    padding: var(--space-2);
    color: var(--color-text-inverse);
    text-decoration: none;
    border-radius: 0.75rem;
    transition: all 0.3s ease;
    font-weight: 500;
    font-size: var(--font-size-sm);
  }

  .dashboard-link:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(5px);
  }

  .dashboard-link.active {
    background: var(--color-accent);
    color: var(--color-primary);
    box-shadow: var(--shadow-accent);
  }

  .dashboard-link i {
    margin-right: var(--space-2);
  }
}

@media (max-width: 800px) {
  .main-content-container {
    grid-template-columns: 1fr;
    position: relative;
  }

  .sidebar {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    z-index: var(--z-sticky);
    transform: translateX(-110%);
    transition: transform 0.3s ease;
  }

  /* .sidebar::after {
    position: fixed;
    content: "";
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: -1;
  } */

  .sidebar.active {
    transform: translateX(0);
  }
}

/* Main Contents */
.main-content {
  padding: var(--space-2);
  background-color: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  width: 100%;
  position: relative;
  overflow: hidden;
  /* overflow-x: auto; */
}

.main-content.overlay::after {
  position: absolute;
  content: "";
  display: block;
  height: 100%;
  width: 100%;
  background-color: rgba(79, 78, 78, 0.06);
  z-index: var(--z-sticky-backdrop);
  inset: 0;
  backdrop-filter: blur(10px);
}

.main-content .main-content-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-8);
  width: 100%;
  overflow: hidden;

  #select:focus {
    outline: unset;
  }
}

.search-box {
  position: relative;
  margin-left: var(--space-2);
  /* width: 100%; */
  /* min-width: 300px; */
}

.search-input {
  width: 100%;
  padding: var(--space-3) var(--space-4) var(--space-3) var(--space-12);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  /* font-size: 0.95rem; */
  transition: all 0.3s ease;
}

/* .search-input::placeholder {
  color: var(--color-text-muted);
  text-overflow: clip;
  overflow: hidden;
  white-space: nowrap;
  width: 50%;
} */

.search-input:focus {
  /* outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(255, 249, 0, 0.1); */

  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 130, 126, 0.1);
}

.search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
}

@media (max-width: 500px) {
  .main-content .main-content-header {

    a,
    button,
    select {
      padding: var(--space-1) var(--space-2);
      font-size: var(--font-size-xs);
      min-height: 1rem;
    }
  }

  /* .search-box {
    margin-left: var(--space-1);
  } */

  .search-input {
    padding: 0.4rem .5rem 0.4rem 1.5rem;
  }

  .search-icon {
    position: absolute;
    left: .3rem;
  }
}

/* All Main Dashboard Styles */
#dashboard-content {

  /* Stats Cards */
  .course-stats-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-6);
    margin-bottom: var(--space-8);
  }

  .stat-card {
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
    border: 1px solid var(--color-border);

    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: var(--space-4);
  }

  .stat-icon {
    /* background-color: red; */
    width: 50px;
    height: 50px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--color-info);
  }

  .stat-icon.enrolled {
    background: color-mix(in srgb, var(--color-info) 20%, transparent 80%);
  }

  .stat-icon.active {
    background: color-mix(in srgb, var(--color-error) 20%, transparent 80%);
    color: var(--color-error);
  }

  .stat-icon.completed {
    background: color-mix(in srgb, var(--color-success) 20%, transparent 80%);
    color: var(--color-success);
  }

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

    strong {
      display: block;
      font-size: var(--font-size-lg);
      color: var(--color-primary);
      font-weight: var(--font-weight-bold);
    }
  }

  /* active courses container */
  .active-courses-container {
    width: 100%;
    display: flex;
    align-items: flex-start;
    flex-direction: column;
    gap: var(--space-4);
    margin-bottom: var(--space-8);

    /* .active-courses-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: 100%;
      margin-bottom: var(--space-4);
    } */
  }

  .active-courses-container .active-courses {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-4);

    .active-course-card {
      background: var(--color-bg-secondary);
      border-radius: var(--radius-lg);
      padding: var(--space-4);
      box-shadow: var(--shadow-md);
      transition: all 0.3s ease;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-direction: column;
      gap: var(--space-4);

      .course-avatar {
        width: 100%;
        height: 100px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: var(--font-size-5xl);
        color: var(--color-text-inverse);
        /* margin-bottom: var(--space-4); */
        color: var(--color-primary-dark);
        background-color: color-mix(in srgb,
            var(--color-primary-dark) 20%,
            transparent 80%);
      }

      .course-info {
        width: 100%;

        p {
          color: var(--color-text-secondary);
          font-size: var(--font-size-xs);
        }
      }

      button {
        align-self: flex-start;
      }

      .price-and-rating {
        /* background-color: red; */
        display: flex;
        align-items: center;
        justify-content: space-between;
        width: 100%;


        .course-price {
          width: 40%;
          display: flex;
          align-items: center;
          justify-content: center;
          gap: var(--space-1);
          /* background-color: green; */
        }

        .course-price .old-price {
          color: var(--color-text-muted);
          font-family: var(--font-family-body);
          font-size: var(--font-size-sm);
          text-decoration: line-through;
          font-weight: var(--font-weight-medium);
        }

        .course-price .new-price {
          color: var(--color-secondary);
          font-family: var(--font-family-heading);
          font-size: var(--font-size-xl);
          font-weight: var(--font-weight-extrabold);
        }

        .course-rating {
          /* background-color: red; */
          width: 55%;
          display: flex;
          justify-content: flex-end;
          gap: var(--space-2);
          align-items: center;
          height: 100%;
        }

        .course-rating .rating-stars {
          display: flex;
          gap: var(--space-1);
          color: var(--color-accent-dark);
          align-items: inherit;
          height: 100%;

          i {
            font-size: var(--font-size-xs);

          }
        }

        .average-rating {
          color: var(--color-text-secondary);
        }
      }
    }
  }

  /* Dashboard Grid */
  .dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    grid-template-rows: fit-content fit-content;
    gap: var(--space-4);
    /* margin-bottom: 2rem; */
  }

  /* Cards */
  .card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--space-3);
    border: 1px solid var(--color-border);
    transition: all 0.3s ease;
    /* background-color: red; */
  }

  .card-header {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-4);
  }

  .card-action:hover {
    color: var(--color-primary);
  }

  /* Upcoming Classes */
  .class-item,
  .assignment-item,
  .notification-item {
    width: 100%;
    display: flex;
    align-items: center;
    padding: var(--space-2);
    margin-bottom: var(--space-4);
    background: var(--color-bg-secondary);
    transition: all 0.3s ease;
  }

  .class-item:hover {
    background: var(--color-bg-tertiary);
    transform: translateX(5px);
  }

  .class-time {
    background: var(--color-accent);
    color: var(--color-primary);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: var(--font-size-sm);
    margin-right: 1rem;
    min-width: 80px;
    text-align: center;
  }

  .class-info,
  .assignment-info,
  .notification-content {
    flex: 1;
  }

  .class-name,
  .assignment-title,
  .notification-title {
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 0.25rem;
    font-size: var(--font-size-sm);
  }

  .class-instructor,
  .assignment-course,
  .notification-message {
    color: var(--color-text-secondary);
    font-size: var(--font-size-xs);
  }

  .class-status {
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.75rem;
    font-weight: 500;
  }

  .class-status.live {
    background: var(--color-error-light);
    color: var(--color-error-dark);
  }

  .class-status.upcoming {
    background: var(--color-info-light);
    color: var(--color-info-dark);
  }

  .assignment-item:hover {
    background: var(--color-bg-tertiary);
    transform: translateX(5px);
  }

  .assignment-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1rem;
    color: white;
  }

  .assignment-icon.quiz {
    background: linear-gradient(135deg,
        var(--color-info),
        var(--color-info-light));
  }

  .assignment-icon.project {
    background: linear-gradient(135deg,
        var(--color-warning),
        var(--color-warning-light));
  }

  .assignment-icon.homework {
    background: linear-gradient(135deg,
        var(--color-success),
        var(--color-success-light));
  }

  .assignment-due,
  .notification-time {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
  }

  .assignment-due.urgent {
    color: var(--color-error);
    font-weight: 600;
  }

  .notification-item:hover {
    background: var(--color-bg-tertiary);
    transform: translateX(5px);
  }

  .notification-icon {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1rem;
    font-size: 0.9rem;
    color: white;
  }

  .notification-icon.announcement {
    background: var(--color-info);
  }

  .notification-icon.grade {
    background: var(--color-success);
  }

  .notification-icon.reminder {
    background: var(--color-warning);
  }


  @media (max-width: 500px) {
    .dashboard-grid {
      grid-template-columns: repeat(auto-fit, minmax(100%, 1fr));
      /* margin-bottom: 2rem; */
    }

    .card {
      padding: var(--space-2);
    }

    .card-header {

      a,
      button {
        padding: var(--space-1) var(--space-2);
        font-size: var(--font-size-xs);
        min-height: 1rem;
      }
    }
  }
}


.card-row {
  width: 100%;
  margin-bottom: var(--space-4);
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
  /* flex-wrap: wrap; */
  padding: var(--space-2);
  background: var(--color-bg-secondary);
  gap: var(--space-4);
  overflow: hidden;
  transition: var(--transition-base);

  &:last-child {
    border-bottom: none;
  }

  &:hover {
    background: rgba(0, 130, 126, 0.02);
    transform: translateX(5px);
  }

  .card-row-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    color: var(--color-bg);
    background-color: var(--color-accent-dark);
    font-weight: var(--font-weight-bold);
    flex-shrink: 0;
  }

  .card-row-icon.quiz {
    background: linear-gradient(135deg,
        var(--color-info),
        var(--color-info-light));
    /* color: var(--color-bg); */
  }

  .card-row-icon.project {
    background: linear-gradient(135deg,
        var(--color-warning),
        var(--color-warning-light));
    /* color: var(--color-bg); */
  }

  .card-row-icon.homework {
    background: linear-gradient(135deg,
        var(--color-success),
        var(--color-success-light));
    /* color: var(--color-bg); */
    /* background: var(--color-primary); */
  }

  /* .card-row-icon.icon-assignment {
    background: var(--color-primary);
  } */

  .card-row-icon.icon-grade {
    background: var(--color-success);
  }

  .card-row-icon.icon-announcement {
    background: var(--color-warning);
  }

  .card-row-icon.icon-message {
    background: var(--color-info);
  }

  .card-row-icon.icon-deadline {
    background: var(--color-error);
  }

  .card-row-summary {
    display: flex;
    align-items: flex-start;
    justify-content: flex-start;
    gap: var(--space-1);
    flex-direction: column;
    flex-grow: 1;

    .card-row-summary-para {
      font-size: var(--font-size-sm);
      color: var(--color-text-secondary);
      display: inline-flex;
      gap: var(--space-4);

      .assignmant-due {
        color: var(--color-error);
      }
    }

    .card-row-summary-bottom {
      font-size: var(--font-size-xs);
      color: var(--color-text-muted);
      display: flex;
      gap: var(--space-2);
    }
  }

  .card-row-actions {
    display: flex;
    align-items: flex-start;
    justify-content: flex-start;
    gap: var(--space-2);
    align-items: flex-end;
  }


  /* @media (max-width: 650px) {
    .card-row-actions {
      flex-direction: column;
    }
  } */

  /* @media (max-width: 500px) {
    .card-row-actions {
      flex-direction: column;

      a,
      button {
        padding: var(--space-1) var(--space-2);
        font-size: var(--font-size-xs);
        min-height: 1rem;
      }
    }

    .card-row-summary .card-row-summary-para {
      font-size: var(--font-size-xs);
    }
  } */

}

@media (max-width: 800px) {
  .card-row {
    flex-direction: column;
    /* align-items: flex-start;
    gap: var(--space-2); */
  }
}


/* @media (max-width: 500px) {
  .card-row {
    padding: 0;
    gap: var(--space-2);

    .card-row-icon {
      width: 30px;
      height: 30px;
      font-size: var(--font-size-sm);
    }

    .card-row-summary {
      display: flex;
      align-items: flex-start;
      justify-content: flex-start;
      gap: var(--space-1);
      flex-direction: column;
      flex-grow: 1;

      .card-row-summary-title {
        font-size: var(--font-size-sm);
      }

      .card-row-summary-para {
        font-size: var(--font-size-xs);
      }

      .card-row-summary-bottom {
        font-size: .4rem;
        gap: var(--space-1);
      }
    }
  }
} */

/* Other Content Styles */

/* Additional Notificatio Styles */
.card-row.notification-item {
  touch-action: pan-y;
}

.card-row.notification-item.unread {
  background: rgba(0, 255, 13, 0.064);
  /* border-left: 4px solid var(--color-primary-dark); */
}

.notification-item.unread .card-row-summary-title {
  font-weight: var(--font-weight-bold);
}

/* .notification-item:hover .notification-actions {
    opacity: 1;
  } */

/* .action-icon {
    width: 35px;
    height: 35px;
    border-radius: var(--radius-full);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    font-size: 0.9rem;
  }

  .star-btn {
    background: rgba(255, 249, 0, 0.1);
    color: var(--color-accent-dark);
  }

  .star-btn:hover {
    background: var(--color-accent);
    transform: scale(1.1);
  }

  .star-btn.active {
    background: var(--color-accent);
    color: var(--color-primary-dark);
  }

  .delete-btn {
    background: rgba(231, 76, 60, 0.1);
    color: var(--color-error);
  }

  .delete-btn:hover {
    background: var(--color-error);
    color: white;
    transform: scale(1.1);
  } */

/* Swipe Actions */
/* .swipe-actions {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
  }

  .swipe-left {
    left: 0;
    background: var(--danger-color);
    color: white;
  }

  .swipe-right {
    right: 0;
    background: var(--accent-color);
    color: var(--primary-dark);
  } */



/* Quiz Styles */

#quiz-view {
  .quiz-header-bar {
    background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
    color: var(--color-bg);
    padding: var(--space-6);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-3);
  }

  @media (max-width: 800px) {
    .quiz-header-bar {
      padding: var(--space-4);
    }
  }

  @media (max-width: 500px) {
    .quiz-header-bar {
      padding: var(--space-2);
    }
  }

  .quiz-info h5 {
    color: var(--color-text-inverse);
    margin-bottom: var(--space-2);
  }

  .progress-text {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
  }

  .timer {
    background: rgba(255, 255, 255, 0.2);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-sm);
  }

  .timer.warning {
    background: var(--color-error);
    animation: pulse 1s infinite;
  }

  .progress-bar {
    width: 100%;
    height: 6px;
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-sm);
    overflow: hidden;
  }

  .progress-fill {
    height: 100%;
    background: var(--color-accent);
    transition: width 0.3s ease;
    border-radius: 3px;
  }

  .question-container {
    padding: var(--space-8);
  }

  @media (max-width: 800px) {
    .question-container {
      padding: var(--space-4);
    }
  }

  .question {
    margin-bottom: var(--space-8);
  }

  .question-text {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--space-6);
    line-height: var(--line-height-normal);
  }

  .question-type {
    color: var(--color-primary);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--space-3);
    text-transform: uppercase;
  }

  .options {
    display: grid;
    gap: var(--space-3);
  }

  .option {
    /* background: rgb(230, 230, 230); */
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: var(--space-4);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: var(--space-3);
  }

  .option:hover {
    border-color: var(--color-primary);
    background: rgba(0, 130, 126, 0.05);
  }

  .option.selected {
    border-color: var(--color-primary);
    background: rgba(0, 130, 126, 0.1);
  }

  .option input[type="radio"],
  .option input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--color-primary);
  }

  /* .text-input {
    width: 100%;
    padding: 15px;
    border: 2px solid var(--color-border);
    border-radius: 8px;
    font-size: 1rem;
    resize: vertical;
    min-height: 100px;
  }

  .text-input:focus {
    outline: none;
    border-color: var(--primary-color);
  } */

  .quiz-navigation {
    background: var(--color-bg-tertiary);
    padding: var(--space-6) var(--space-8);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--color-border);
    gap: var(--space-4);
    flex-wrap: wrap;
  }

  .nav-buttons {
    display: flex;
    gap: var(--space-3);
  }

  @media (max-width: 800px) {
    .quiz-navigation {
      padding: var(--space-3) var(--space-4);
    }
  }

  @media (max-width: 500px) {
    .quiz-navigation {
      padding: var(--space-2);

      a,
      button {
        padding: var(--space-1) var(--space-2) !important;
        font-size: var(--font-size-xs) !important;
        min-height: 1rem !important;
      }
    }
  }

  @media (max-width: 300px) {
    .nav-buttons {
      width: 100%;
      justify-content: space-between;
    }
  }
}

























/* Calendar Styles */
.calendar-main-header {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  color: var(--color-bg);
  padding: var(--space-4);
  text-align: center;
  margin-bottom: var(--space-4);

  h4, p {
    color: var(--color-text-inverse);
  }

  p {
    margin-top: var(--space-2);
    font-size: var(--font-size-sm);
  }
}

#calendar-content {

  /* .calendar-container {
    display: grid;
    grid-template-columns: 1fr 250px;
    gap: var(--space-4);
  }

  @media (max-width: 800px) {
    .calendar-container {
      display: grid;
      grid-template-columns: 1fr;
      gap: var(--space-4);
    }
  } */

  .calendar-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-6);
    flex-wrap: wrap;
    gap: var(--space-4);

    button {
      /* padding: var(--space-1) var(--space-2);
      font-size: var(--font-size-xs);
      min-height: 1rem; */
      display: inline-flex;
      align-items: center;
      justify-content: center;

    }
  }

  .nav-controls {
    display: flex;
    align-items: center;
    gap: var(--space-4);
  }

  @media (max-width: 800px) {
    .calendar-controls {
      margin-bottom: var(--space-4);
      flex-wrap: wrap;
      gap: var(--space-4);

      button {
        padding: var(--space-1) var(--space-2);
        font-size: var(--font-size-xs);
        min-height: 1rem;
      }
    }
  }

  .month-year-selectors {
    display: flex;
    align-items: center;
    gap: var(--space-2);
  }

  .month-selector,
  .year-selector {
    padding: var(--space-2);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-bg);
    color: var(--color-text);
    font-size: var(--font-size-xs);
  }

  .calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 1px;
    background: var(--color-border);
    border-radius: var(--radius-sm);
    overflow: hidden;
    touch-action: pan-y;
  }

  .calendar-header {
    background: var(--color-primary);
    color: var(--color-bg);
    padding: var(--space-4) var(--space-2);
    text-align: center;
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-xs);
  }

  .calendar-day {
    background: var(--color-bg);
    min-height: 80px;
    padding: var(--space-2);
    display: flex;
    flex-direction: column;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
  }

  .calendar-day:hover {
    background: var(--color-bg-tertiary);
  }

  .calendar-day.other-month {
    background: #f5f5f5;
    color: var(--color-text-muted);
  }

  .calendar-day.today {
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
    color: var(--text-dark);
    font-weight: 700;
  }

  .day-number {
    font-weight: 600;
    margin-bottom: 0.25rem;
  }

  .event-indicator {
    width: 6px;
    height: 6px;
    border-radius: var(--radius-full);
    margin: 1px;
    display: inline-block;
  }

  .event-assignment {
    background: var(--color-info);
  }

  .event-live-class {
    background: var(--color-success);
  }

  .event-quiz {
    background: var(--color-warning);
  }

  .event-holiday {
    background: var(--color-error);
  }

  .events-section {
    background: var(--color-bg);
    border-radius: var(--radius-md);
    padding: var(--space-3);
    box-shadow: var(--shadow-lg);
  }

  .events-header {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: var(--space-2) var(--space-6);
    align-items: center;
    margin: var(--space-4) var(--space-0);
  }

  .event-type-legend {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    font-size: var(--font-size-xs);
    margin-top: var(--space-2);
  }

  .legend-item {
    display: flex;
    align-items: center;
    gap: var(--space-1);
  }

  .legend-dot {
    width: 8px;
    height: 8px;
    border-radius: var(--radius-full);
  }

  @media (max-width: 500px) {
    .calendar-controls {
      flex-direction: column;
    }
    .month-year-selectors {
      display: none;
    }
    .events-header {
      flex-direction: column;
    }
  }

  /* .upcoming-events {
    max-height: 500px;
    overflow-y: auto;
    overflow-x: hidden;
    margin-top: var(--space-4);
  }

  .upcoming-events::-webkit-scrollbar {
    width: 0;
    display: none;
  }

  .event-item {
    display: flex;
    align-items: center;
    margin-bottom: var(--space-2);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-slow);
    gap: var(--space-2);
  }

  .event-item:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow-lg);
  } 


  .event-icon {
    width: 30px;
    height: 30px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-inverse);
    flex-shrink: 0;
  }

  .event-icon.assignment {
    background: var(--color-info);
  }

  .event-icon.live-class {
    background: var(--color-success);
  }

  .event-icon.quiz {
    background: var(--color-warning);
  }

  .event-icon.holiday {
    background: var(--color-error);
  }

  .event-details h6 {
    color: var(--color-bg-dark);
    margin-bottom: var(--space-1);
    font-size: var(--font-size-sm);
  }

  .event-meta {
    color: var(--color-text);
    font-size: var(--font-size-xs);
  }



  /* .calendar-container {
    background: var(--color-bg);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
  }

  .calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-6);
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
  } 

  .month-year {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
  }
    
  .nav-buttons {
    display: flex;
    gap: var(--space-2);
  }

  .nav-btn {
    width: 40px;
    height: 40px;
    border: none;
    border-radius: var(--radius-lg);
    background: var(--color-accent);
    color: var(--color-text);
    cursor: pointer;
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    transition: var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .nav-btn:hover {
    background: var(--color-accent-dark);
    transform: scale(1.05);
  }

  .add-event-btn {
    padding: var(--space-2) var(--space-4);
    background: var(--color-accent);
    color: var(--color-text);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    transition: var(--transition-base);
  }

  .add-event-btn:hover {
    background: var(--color-accent-dark);
  }

  .calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    background: var(--color-border);

  }

  .calendar-days {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 1px;
    background: var(--color-border);
    padding: 1px;
  }

  .day-header {
    background: var(--color-bg-secondary);
    padding: var(--space-3);
    text-align: center;
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
  }

  .day-cell {
    background: var(--color-bg);
    min-height: 80px;
    padding: var(--space-2);
    position: relative;
    cursor: pointer;
    transition: var(--transition-base);
  }

  .day-cell:hover {
    background: var(--color-bg-secondary);
  }

  .day-number {
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-sm);
    color: var(--color-text);
    margin-bottom: var(--space-1);
  }

  .day-cell.other-month .day-number {
    color: var(--color-text-muted);
  }

  .day-cell.today {
    background: var(--color-primary);
    color: var(--color-text-inverse);
  }

  .day-cell.today .day-number {
    color: var(--color-text-inverse);
  }

  .day-cell.today:hover {
    background: var(--color-primary-dark);
  }

  .event-indicator {
    position: absolute;
    top: var(--space-2);
    right: var(--space-2);
    width: 10px;
    height: 10px;
    border-radius: 50%;
    z-index: 1;
    border: 2px solid var(--color-bg);
  }

  .event-indicator.class {
    background: var(--color-error);
  }

  .event-indicator.meeting {
    background: var(--color-info);
  }

  .event-indicator.assignment {
    background: var(--color-warning);
  }

  .event-text {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    margin-top: var(--space-1);
    font-weight: var(--font-weight-medium);
    line-height: 1.2;
  }

  .event-text.class {
    color: var(--color-error);
  }

  .event-text.meeting {
    color: var(--color-info);
  }

  .event-text.assignment {
    color: var(--color-warning);
  }

  .tooltip {
    position: absolute;
    background: var(--color-text);
    color: var(--color-text-inverse);
    padding: var(--space-3);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    max-width: 250px;
    z-index: var(--z-tooltip);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-base);
    line-height: var(--line-height-snug);
  }

  .tooltip.show {
    opacity: 1;
    pointer-events: auto;
  }


  .modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-base);
    padding: var(--space-4);
    overflow-y: auto;
  }

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

  .modal-content {
    background: var(--color-bg);
    padding: var(--space-6);
    border-radius: var(--radius-xl);
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    margin: auto;
  }

  .modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-4);
  }

  .modal-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
  }

  .close-btn {
    background: none;
    border: none;
    font-size: var(--font-size-xl);
    cursor: pointer;
    color: var(--color-text-secondary);
  }

  .form-group {
    margin-bottom: var(--space-4);
  }

  .form-label {
    display: block;
    margin-bottom: var(--space-2);
    font-weight: var(--font-weight-medium);
    color: var(--color-text);
  }

  .form-input {
    width: 100%;
    padding: var(--space-3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    transition: var(--transition-base);
    font-family: var(--font-family-body);
  }

  .form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 130, 126, 0.1);
  }

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

  .color-options {
    display: flex;
    gap: var(--space-2);
    margin-top: var(--space-2);
  }

  .color-option {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition-base);
  }

  .color-option.selected {
    border-color: var(--color-text);
    transform: scale(1.1);
  }

  .color-option.class {
    background: var(--color-error);
  }

  .color-option.meeting {
    background: var(--color-info);
  }

  .color-option.assignment {
    background: var(--color-warning);
  }

  .form-actions {
    display: flex;
    gap: var(--space-2);
    justify-content: flex-end;
  }

  .btn {
    padding: var(--space-3) var(--space-4);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    transition: var(--transition-base);
  }

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

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

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

  .btn-secondary:hover {
    background: var(--color-border-dark);
  } */
}









/* Chat Styles */
#chat-content {
  .search-box {
    margin: -0.5rem 0 var(--space-4);
  }

  .chat-list {
    width: 100%;
    display: flex;
    align-items: flex-start;
    justify-content: flex-start;
    flex-direction: column;
    gap: var(--space-3);
  }

  .chat-item {
    width: 100%;
    padding: var(--space-4);
    border-bottom: 1px solid var(--color-border-light);
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--space-3);
  }

  .chat-avatar {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    background: var(--color-primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-inverse);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
    position: relative;
  }

  .status-indicator.online {
    background: var(--color-success);
  }

  .status-indicator {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 12px;
    height: 12px;
    border-radius: var(--radius-full);
    border: 2px solid var(--color-bg);
    background-color: var(--color-text-muted);
  }

  .chat-info {
    flex-grow: 1;
  }

  .chat-name {
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-base);
    color: var(--color-text);
    margin-bottom: var(--space-1);
  }

  .chat-preview {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .chat-time {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    align-self: flex-start;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    justify-content: space-between;
    height: 100%;
    gap: var(--space-3);
    white-space: nowrap;
  }

  .new-message {
    /* padding: var(--space-1); */
    height: 20px;
    width: 20px;
    border-radius: var(--radius-full);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-inverse);
    background-color: var(--color-primary);
    font-size: var(--font-size-xs);
  }

  @media (max-width: 400px) {
    .chat-item {
      padding: var(--space-2);
    }

    .chat-avatar {
      width: 38px;
      height: 38px;
      flex-shrink: 0;
    }

    .chat-name {
      font-size: var(--font-size-sm);
    }

    .chat-time {
      gap: var(--space-1);
      font-size: .5rem;

      .new-message {
        font-size: .5rem;
        width: 16px;
        height: 16px;
      }
    }
  }

  /* View Messeage Style */
  .chat-messages {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--color-bg-tertiary);
    /* width: 100%; */
    /* overflow: hidden; */
  }

  .chat-header {
    padding: var(--space-4);
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    gap: var(--space-3);
  }

  .back-btn {
    background: none;
    border: none;
    font-size: var(--font-size-lg);
    color: var(--color-primary);
    cursor: pointer;
    padding: var(--space-2);
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
  }

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

  /* .chat-header-info h3 {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
  } */

  .chat-header-status {
    font-size: var(--font-size-xs);
    color: var(--color-success);
  }

  .messages-content {
    width: 100%;
    flex: 1;
    overflow-y: auto;
    padding: var(--space-4);
    background: var(--color-bg-tertiary);
    /* background-color: red; */
  }

  @media (max-width: 500px) {
    .messages-content {
      padding: var(--space-2);
    }

  }

  .message {
    margin-bottom: var(--space-4);
    display: flex;
    align-items: flex-end;
    gap: var(--space-2);
    width: 100%;
  }

  .message.sent {
    flex-direction: row-reverse;
  }

  .message-bubble {
    max-width: 600px;
    width: auto;
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-lg);
    position: relative;
    word-wrap: break-word;
  }

  .message.received .message-bubble {
    background: var(--color-bg);
    color: var(--color-text);
    box-shadow: var(--shadow-sm);
  }

  .message.sent .message-bubble {
    background: var(--color-primary);
    color: var(--color-text-inverse);
  }

  .message.instructor .message-bubble {
    background: var(--color-accent-dark);
    color: var(--color-text);
  }

  .message-content {
    font-size: var(--font-size-sm);
    line-height: var(--line-height-relaxed);
  }

  .message-time {
    font-size: var(--font-size-xs);
    color: rgba(255, 255, 255, 0.7);
    margin-top: var(--space-1);
    text-align: right;
  }

  .message.received .message-time {
    color: var(--color-text-muted);
  }

  .message.instructor .message-time {
    color: var(--color-text-secondary);
  }

  /* File and Code Message Styles */
  .file-message,
  .code-message,
  .link-message {
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-md);
    padding: var(--space-3);
    margin-top: var(--space-2);
    max-width: 100%;
    /* background-color: red; */
  }

  .message.received .file-message,
  .message.received .code-message,
  .message.received .link-message {
    border-color: var(--color-border);
  }

  .file-info,
  .code-info,
  .link-info {
    display: flex;
    align-items: center;
    gap: var(--space-3);
  }

  .code-info {
    flex-wrap: wrap;
  }

  .link-info {
    flex-direction: column;
    align-items: flex-start;
  }

  .file-icon,
  .code-icon,
  .link-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-lg);
  }

  .file-icon {
    background: var(--color-error-light);
  }

  .code-icon {
    background: var(--color-tertiary-light);
  }

  .link-icon {
    background: var(--color-secondary-light);
  }

  /* .file-details,
  .code-details,
  .link-details {
    flex: 1;
  } */

  .file-name,
  .code-title,
  .link-title {
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-1);
  }

  .file-size,
  .code-language,
  .link-url {
    font-size: var(--font-size-xs);
    opacity: 0.8;
    word-break: break-all;
  }

  .message-actions {
    display: flex;
    gap: var(--space-2);
  }

  .action-btn {
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: inherit;
    padding: var(--space-2);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: var(--font-size-sm);
    transition: var(--transition-fast);
  }

  .message.received .action-btn {
    background: var(--color-bg-secondary);
    color: var(--color-text);
  }

  .action-btn:hover {
    background: rgba(255, 255, 255, 0.2);
  }

  .message.received .action-btn:hover {
    background: var(--color-bg-tertiary);
  }

  .code-preview {
    font-family: var(--font-family-mono);
    font-size: var(--font-size-xs);
    background: rgba(0, 0, 0, 0.1);
    padding: var(--space-2);
    border-radius: var(--radius-sm);
    margin-top: var(--space-2);
    /* white-space: nowrap; */
    overflow: hidden;
    text-overflow: ellipsis;
    height: 100px;
  }

  /* Message Input Styles */
  .message-input-container {
    padding: var(--space-4);
    border-top: 1px solid var(--color-border);
    background: var(--color-bg);
  }

  .message-input-wrapper {
    display: flex;
    gap: var(--space-2);
    align-items: flex-end;
  }

  .input-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
  }

  .message-type-selector {
    display: flex;
    gap: var(--space-2);
    align-items: center;
  }

  .type-select {
    padding: var(--space-2);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    background: var(--color-bg);
    color: var(--color-text);
  }

  .message-input {
    resize: none;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-3);
    font-family: var(--font-family-body);
    font-size: var(--font-size-sm);
    min-height: 44px;
    max-height: 120px;
  }

  .file-input {
    display: none;
  }

  .file-input-label {
    padding: var(--space-2) var(--space-3);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: var(--font-size-sm);
    transition: var(--transition-fast);
  }

  .file-input-label:hover {
    background: var(--color-bg-tertiary);
  }

  .send-btn {
    background: var(--color-primary);
    border: none;
    color: var(--color-text-inverse);
    padding: var(--space-3);
    border-radius: var(--radius-full);
    cursor: pointer;
    font-size: var(--font-size-lg);
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
  }

  .send-btn:hover {
    background: var(--color-primary-dark);
  }

  .send-btn:disabled {
    background: var(--color-text-muted);
    cursor: not-allowed;
  }

  @media (max-width: 500px) {

    .message-bubble,
    .message-input-container {
      max-width: 90%;
      padding: var(--space-2);
    }
  }
}










/* Practise Styles */
#practise-content {
  .editor-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-4);
    min-height: 500px;
    height: auto;
  }

  .editor-panel,
  .preview-panel {
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    display: flex;
    flex-direction: column;
    height: 100%;
    /* background-color: red; */
  }

  .panel-header {
    background: var(--color-bg-tertiary);
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-2);
  }

  .tabs {
    display: flex;
    gap: var(--space-2);
  }

  .tab {
    background: none;
    border: none;
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 14px;
    color: var(--color-text-secondary);
    transition: var(--transition-fast);
  }

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

  .actions {
    display: flex;
    gap: var(--space-2);
  }

  .btn {
    background: var(--color-primary);
    color: white;
    border: none;
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 14px;
    transition: var(--transition-fast);
  }

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

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

  .code-area {
    flex: 1;
    position: relative;
    min-height: 400px;
  }

  .code-input {
    width: 100%;
    height: 100%;
    padding: var(--space-4);
    border: none;
    outline: none;
    font-family: var(--font-family-mono);
    font-size: 14px;
    line-height: 1.5;
    resize: none;
    background: var(--color-bg);
  }

  .code-input:focus {
    box-shadow: inset 0 0 0 2px var(--color-primary);
    background: var(--color-bg-secondary);
  }

  .code-input::-webkit-scrollbar {
    width: 0;
    display: none;
  }

  .code-input.hidden {
    display: none;
  }

  .preview-frame {
    min-height: 400px;
    width: 100%;
    flex: 1;
    border: none;
    background: white;
  }

  @media (max-width: 768px) {

    .code-area,
    .preview-frame {
      min-height: 300px;
    }
  }


  /* .practise-header {
    background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
    color: var(--color-bg);
    padding: var(--space-4);
    text-align: center;
    margin-bottom: var(--space-4);

    h4 {
      color: var(--color-text-inverse);
    }
  }

  .practise-container {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
  }

  .practise-card {
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--space-6);
  }

  .practise-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    margin-bottom: var(--space-4);
  }

  .practise-description {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-6);
  }

  .start-practise-btn {
    background: var(--color-primary);
    color: var(--color-text-inverse);
    padding: var(--space-3) var(--space-6);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: all 0.3s ease;
  }

  .start-practise-btn:hover {
    background: var(--color-primary-dark);
  } */
}







/* Profile Styles */
#profile-content {
  /* .profile-container {
    padding: var(--space-4);
  } */

  .profile-card {
    /* background: var(--color-bg); */
    /* border-radius: var(--radius-xl); */
    /* box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border); */
    padding: var(--space-4);
    position: relative;
  }

  .profile-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-8);
  }

  .profile-image-container {
    position: relative;
    display: inline-block;
  }

  .profile-image {
    width: 120px;
    height: 120px;
    border-radius: var(--radius-full);
    object-fit: cover;
    border: 4px solid var(--color-primary-light);
    box-shadow: var(--shadow-md);
  }

  .image-upload-btn {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 36px;
    height: 36px;
    background: var(--color-primary);
    border: 3px solid var(--color-bg);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-base);
    color: var(--color-text-inverse);
  }

  .image-upload-btn:hover {
    background: var(--color-primary-dark);
    transform: scale(1.1);
  }

  .edit-profile-btn {
    width: 40px;
    height: 40px;
    background: var(--color-accent);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-base);
    color: var(--color-primary);
  }

  .edit-profile-btn:hover {
    background: var(--color-primary);
    color: var(--color-text-inverse);
    border-color: var(--color-primary);
  }

  .profile-info {
    margin-bottom: var(--space-8);
  }

  .student-name {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    margin-bottom: var(--space-2);
    font-family: var(--font-family-heading);
  }

  .student-id {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-6);
  }

  .info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
    margin-bottom: var(--space-6);
  }

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

  .info-label {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    text-transform: uppercase;
    font-weight: var(--font-weight-medium);
    letter-spacing: 0.05em;
    margin-bottom: var(--space-1);
  }

  .info-value {
    font-size: var(--font-size-base);
    color: var(--color-text);
    font-weight: var(--font-weight-medium);
  }

  .course-stats {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--space-6);
    background: var(--color-bg-tertiary);
    padding: var(--space-4);
    border-radius: var(--radius-lg);
  }

  .stat-item {
    text-align: center;
    flex: 1;
  }

  .stat-number {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    display: block;
  }

  .stat-label {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    font-weight: var(--font-weight-medium);
    letter-spacing: 0.05em;
  }

  .referral-section {
    margin-bottom: var(--space-6);
  }

  .referral-code {
    display: flex;
    align-items: center;
    background: var(--color-bg-tertiary);
    padding: var(--space-3);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-4);
  }

  .referral-text {
    flex: 1;
    font-family: var(--font-family-mono);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
  }

  .copy-btn {
    margin-left: var(--space-2);
    padding: var(--space-2);
    background: var(--color-primary);
    color: var(--color-text-inverse);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-base);
  }

  .copy-btn:hover {
    background: var(--color-primary-dark);
  }

  /* .quick-actions {
    display: flex;
    gap: var(--space-3);
    margin-bottom: var(--space-8);
  } */

  .recent-activity {
    border-top: 1px solid var(--color-border);
    padding-top: var(--space-6);
  }

  .section-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    margin-bottom: var(--space-4);
    font-family: var(--font-family-heading);
  }

  .activity-item {
    display: flex;
    align-items: center;
    padding: var(--space-3);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-2);
    transition: var(--transition-base);
  }

  .activity-item:hover {
    background: var(--color-bg-tertiary);
  }

  .activity-icon {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    background: var(--color-secondary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: var(--space-3);
    color: var(--color-secondary-dark);
  }

  .activity-content {
    flex: 1;
  }

  .activity-text {
    font-size: var(--font-size-sm);
    color: var(--color-text);
    margin-bottom: var(--space-1);
  }

  .activity-time {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
  }

  .edit-actions {
    display: none;
    justify-content: space-between;
    gap: var(--space-3);
    margin: var(--space-6) 0;
  }

  .edit-actions.active {
    display: flex;
  }

  .form-input {
    width: 100%;
    padding: var(--space-3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    transition: var(--transition-base);
  }

  .form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 130, 126, 0.1);
  }

  /* Button Styles */
  /* .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition-base);
    font-family: var(--font-family-body);
  }

  .btn-md {
    padding: var(--space-3) var(--space-5);
    font-size: var(--font-size-base);
  }

  .btn-primary {
    background: var(--color-primary);
    color: var(--color-text-inverse);
    border-color: var(--color-primary);
  }

  .btn-primary:hover {
    background: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
  }

  .btn-secondary {
    background: var(--color-secondary);
    color: var(--color-text-inverse);
    border-color: var(--color-secondary);
  }

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

  .btn-outline {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
  }

  .btn-outline:hover {
    background: var(--color-primary);
    color: var(--color-text-inverse);
  } */

  .performance-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
  }

  .performance-excellent {
    background: rgba(16, 185, 129, 0.1);
    color: var(--color-success-dark);
  }

  .performance-good {
    background: rgba(245, 158, 11, 0.1);
    color: var(--color-warning-dark);
  }

  .performance-average {
    background: rgba(59, 130, 246, 0.1);
    color: var(--color-info-dark);
  }

  .hidden {
    display: none;
  }
}


@media (max-width: 640px) {
  #profile-content {
    /* .profile-container {
      padding: var(--space-0);
    } */

    /* .profile-card {
      padding: var(--space-6);
    } */

    .info-grid {
      grid-template-columns: 1fr;
    }

    .course-stats {
      flex-direction: column;
      gap: var(--space-3);
    }

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

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


/* Account Setting Styles */
#account-settings {
  /* overflow-x: auto; */

  .dark-mode-toggle {
    display: flex;
    align-items: center;
    gap: var(--space-2);
  }

  /* Tab Navigation */
  .tab-navigation {
    display: flex;
    border-bottom: 1px solid var(--color-border);
    background: var(--color-bg);
    overflow-x: auto;
    /* overflow: hidden;
    width: 100%; */

    &::-webkit-scrollbar {
      display: none;
    }
  }

  .tab-button {
    background: none;
    border: none;
    padding: var(--space-4) var(--space-6);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all var(--transition-base);
    white-space: nowrap;
    font-weight: var(--font-weight-medium);
  }

  .tab-button:hover {
    color: var(--color-text);
    background: var(--color-bg-tertiary);
  }

  .tab-button.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
    background: var(--color-bg);
  }



  /* Tab Content */
  .tab-content {
    display: none;
    padding: var(--space-8);
  }

  .tab-content.active {
    display: block;
  }

  /* Section Styles */
  .section {
    margin-bottom: var(--space-10);
  }

  .section:last-child {
    margin-bottom: 0;
  }

  .section-title {
    /* font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold); */
    color: var(--color-text);
    margin-bottom: var(--space-2);
  }

  .section-description {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-6);
  }

  /* Form Elements */
  .form-group {
    margin-bottom: var(--space-6);
  }

  .form-label {
    display: block;
    font-weight: var(--font-weight-medium);
    color: var(--color-text);
    margin-bottom: var(--space-2);
    font-size: var(--font-size-sm);
  }

  .form-label .required {
    color: var(--color-error);
  }

  .form-input {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    transition: all var(--transition-base);
    background: var(--color-bg);
    resize: vertical;
  }

  .form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 130, 126, 0.1);
  }

  .password-input-wrapper {
    position: relative;
  }

  .password-toggle {
    position: absolute;
    right: var(--space-3);
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--color-text-muted);
    cursor: pointer;
    padding: var(--space-1);
  }

  .password-toggle:hover {
    color: var(--color-text-secondary);
  }

  .password-strength {
    margin-top: var(--space-2);
    display: flex;
    gap: var(--space-1);
  }

  .strength-bar {
    height: 3px;
    flex: 1;
    background: var(--color-border);
    border-radius: var(--radius-full);
    transition: background-color var(--transition-base);
  }

  .strength-bar.active {
    background: var(--color-success);
  }

  .strength-bar.weak {
    background: var(--color-error);
  }

  .strength-bar.medium {
    background: var(--color-warning);
  }

  .strength-bar.strong {
    background: var(--color-success);
  }

  .password-hint {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin-top: var(--space-2);
  }

  /* Toggle Switch */
  .toggle-group {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) 0;
    border-bottom: 1px solid var(--color-border-light);
  }

  .toggle-group:last-child {
    border-bottom: none;
  }

  .toggle-info {
    flex: 1;
  }

  .toggle-title {
    font-weight: var(--font-weight-medium);
    color: var(--color-text);
    margin-bottom: var(--space-1);
  }

  .toggle-description {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
  }

  .toggle-switch {
    position: relative;
    width: 52px;
    height: 28px;
    background: var(--color-border-dark);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: background-color var(--transition-base);
  }

  .toggle-switch.active {
    background: var(--color-primary);
  }

  .toggle-switch::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 24px;
    height: 24px;
    background: white;
    border-radius: 50%;
    transition: transform var(--transition-base);
    box-shadow: var(--shadow-sm);
  }

  .toggle-switch.active::after {
    transform: translateX(24px);
  }

  /* Select Dropdown */
  .form-select {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    background: var(--color-bg);
    cursor: pointer;
    transition: all var(--transition-base);
  }

  .form-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 130, 126, 0.1);
  }

  #save-notifications {
    margin-top: var(--space-4);
  }

  /* Break Status */
  .break-status {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-4);
    margin-bottom: var(--space-6);
  }

  .break-remaining {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2);
  }

  .break-count {
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
  }

  /* Alert Messages */
  .alert {
    padding: var(--space-4);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-4);
    display: none;
  }

  .alert.show {
    display: block;
    animation: alertSlideIn var(--transition-base) ease-out;
  }

  @keyframes alertSlideIn {
    from {
      opacity: 0;
      transform: translateY(-10px);
    }

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

  .alert-success {
    background: #ecfdf5;
    color: var(--color-success-dark);
    border: 1px solid var(--color-success-light);
  }

  .alert-error {
    background: #fef2f2;
    color: var(--color-error-dark);
    border: 1px solid var(--color-error-light);
  }

  .danger-zone-card {
    border: 1px solid var(--color-error-light);
    border-radius: var(--radius-md);
    padding: var(--space-6);
    background-color: rgba(239, 68, 68, 0.05);
    margin-top: var(--space-8);
  }

  .danger-zone-title {
    color: var(--color-error-dark);
  }

  .danger-zone-description {
    color: var(--color-text-secondary);
    margin: var(--space-4) 0 var(--space-6);
  }

  /* Responsive Design */
  @media (max-width: 768px) {
    .settings-container {
      margin: var(--space-4);
      border-radius: var(--radius-md);
    }

    .tab-content {
      padding: var(--space-6);
    }

    .tab-button {
      padding: var(--space-3) var(--space-4);
      font-size: var(--font-size-xs);
    }

    .toggle-group {
      flex-direction: column;
      align-items: flex-start;
      gap: var(--space-3);
    }

    .toggle-switch {
      align-self: flex-end;
    }
  }

  @media (max-width: 480px) {

    .tab-content {
      padding: var(--space-2);
    }

    .danger-zone-card {
      padding: var(--space-3);
    }

    .danger-zone-description {
      margin: var(--space-2) 0 var(--space-4);
    }
  }
}