@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
  --bg-primary: #f8f9fa;
  --text-primary: #212529;
  --accent: #0d6efd;
  --accent-dark: #0a58ca;
  --white: #ffffff;
  --dark: #212529;
  --shadow-color: rgba(0, 0, 0, 0.08);
  --overlay-color: rgba(0, 0, 0, 0.4);
  --card-bg: rgba(255, 255, 255, 0.98);
  --hero-gradient-start: #0d6efd;
  --hero-gradient-end: #0a58ca;
  --hero-text: white;
  --hero-shadow: rgba(0, 0, 0, 0.15);
  --hero-overlay: rgba(0, 0, 0, 0.08);
  --contact-form-bg: rgba(255, 255, 255, 0.96);
  --border-color: #dee2e6;
  --table-head-bg: #0d6efd;
  --table-head-text: white;
  --auth-form-bg: white;
  --footer-bg: #212529;
  --footer-text: white;
  --sidebar-bg: #f8f9fa;
  --sidebar-link: #495057;
  --sidebar-link-active: #0d6efd;
  --modal-bg: white;
  --progress-bg: #e9ecef;
  --progress-bar: #0d6efd;
  --success-bg: #d4edda;
  --success-text: #155724;
  --error-bg: #f8d7da;
  --error-text: #721c24;
  --chat-user-bg: #0d6efd;
  --chat-user-text: white;
  --chat-bot-bg: #e9ecef;
  --chat-bot-text: #212529;
  --unread-badge: #dc3545;
  --gray-small: #6c757d;
  --input-bg: #ffffff;
  --input-border: #ced4da;
  --button-hover: #0a58ca;
  --dropdown-bg: #ffffff;
  --light-dark: #2a2a2a;
}

.dark {
  --bg-primary: #121212;
  --text-primary: #e0e0e0;
  --accent: #0d6efd;
  --accent-dark: #0a58ca;
  --white: #1e1e1e;
  --dark: #e0e0e0;
  --shadow-color: rgba(255, 255, 255, 0.08);
  --overlay-color: rgba(255, 255, 255, 0.15);
  --card-bg: rgba(30, 30, 30, 0.98);
  --hero-gradient-start: #0d6efd;
  --hero-gradient-end: #0a58ca;
  --hero-text: #e0e0e0;
  --hero-shadow: rgba(255, 255, 255, 0.1);
  --hero-overlay: rgba(255, 255, 255, 0.04);
  --contact-form-bg: rgba(30, 30, 30, 0.96);
  --border-color: #495057;
  --table-head-bg: #0d6efd;
  --table-head-text: #e0e0e0;
  --auth-form-bg: #1e1e1e;
  --footer-bg: #1e1e1e;
  --footer-text: #e0e0e0;
  --sidebar-bg: #1e1e1e;
  --sidebar-link: #adb5bd;
  --sidebar-link-active: #0d6efd;
  --modal-bg: #1e1e1e;
  --progress-bg: #343a40;
  --progress-bar: #0d6efd;
  --success-bg: #198754;
  --success-text: #e0e0e0;
  --error-bg: #dc3545;
  --error-text: #e0e0e0;
  --chat-user-bg: #0d6efd;
  --chat-user-text: #e0e0e0;
  --chat-bot-bg: #343a40;
  --chat-bot-text: #e0e0e0;
  --unread-badge: #ff4136;
  --gray-small: #adb5bd;
  --input-bg: #1e1e1e;
  --input-border: #495057;
  --button-hover: #0a58ca;
  --dropdown-bg: #1e1e1e;
}

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  margin: 0;
  padding: 0;
  padding-top: 56px;
  line-height: 1.5;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

body.modal-open {
  overflow: hidden;
}

.alert {
    position: fixed;
    top: 15px;
    right: 15px;
    z-index: 9999;
}

.navbar {
  position: fixed;
  top: 0;
  z-index: 1030;
  width: 100%;
  box-shadow: 0 2px 10px var(--shadow-color);
  font-weight: 500;
  overflow: visible !important;
  min-height: 50px;
}

.navbar .container-fluid {
  padding-left: 100px;
  padding-right: 100px;
}

@media (max-width: 900px) {
    .navbar .container-fluid {
        padding-left: 10px;
        padding-right: 10px;
    }
}

.glass-effect {
  backdrop-filter: blur(10px);
  transition: background-color 0.3s ease, opacity 0.3s ease;
}

:root .glass-effect {
  background-color: rgba(33,37,41, 0.9);
}

.dark .glass-effect {
  background-color: rgba(30,30,30, 0.8);
}

.navbar-brand {
  font-weight: 600;
  font-size: 1.25rem;
}

.nav-link {
  font-size: 1rem;
  margin-left: 12px;
  padding: 0.5rem 1rem;
}

.contact-form, .auth-form {
  background-color: var(--contact-form-bg);
  padding: 32px;
  border-radius: 12px;
  box-shadow: 0 4px 12px var(--shadow-color);
  max-width: 600px;
  margin: 0 auto;
}

.contact-form h2, .auth-form h1 {
  font-size: 1.75rem;
  margin-bottom: 20px;
  color: var(--accent);
}

.contact-form .form-control, .auth-form .form-control {
  border-radius: 8px;
  border: 1px solid var(--input-border);
  padding: 10px 16px;
  background-color: var(--input-bg);
  color: var(--text-primary);
}

.contact-form .btn-primary, .auth-form .btn-primary {
  background-color: var(--accent);
  border: none;
  padding: 10px 20px;
  font-size: 1rem;
  border-radius: 8px;
  transition: background-color 0.2s ease, transform 0.2s ease;
  margin-bottom: 20px;
}

.contact-form .btn-primary:hover, .auth-form .btn-primary:hover {
  background-color: var(--button-hover);
  transform: translateY(-2px);
}

.dashboard-section {
  padding: 64px 0;
  background-color: var(--bg-primary);
}

.dashboard-container {
  display: flex;
  min-height: calc(100vh - 56px);
}

.sidebar {
  width: 240px;
  background-color: var(--sidebar-bg);
  box-shadow: 2px 0 8px var(--shadow-color);
  position: fixed;
  top: 60px;
  bottom: 0;
  padding: 6px;
  overflow-y: auto;
  z-index: 1000;
  transition: transform 0.3s ease;
}

.sidebar .list-group-item {
  background-color: transparent;
  border: none;
  color: var(--sidebar-link);
  cursor: pointer;
  padding: 20px 12px;
  border-radius: 6px;
  margin-top: 4px;
  transition: background-color 0.2s ease;
}

.sidebar .list-group-item:hover {
  background-color: var(--accent-dark);
  color: var(--white);
}

.sidebar .list-group-item.active {
  background-color: var(--sidebar-link-active);
  color: white;
  font-weight: 500;
}

.sidebar .bottom-tabs {
  position: absolute;
  bottom: 16px;
  width: 230px;
}

.main-content {
  flex: 1;
  margin-left: 240px;
  padding: 16px;
  margin-top: 56px;
}

.tab-pane {
  display: none;
}

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

.empty-message {
  text-align: center;
  font-size: 1.1rem;
  margin-top: 40px;
  color: var(--gray-small);
}

.settings-section h3 {
  margin-top: 24px;
  margin-bottom: 12px;
  color: var(--accent);
  font-size: 1.25rem;
}

.settings-section .form-group {
  margin-bottom: 16px;
}

.settings-section .save-btn {
  margin-top: 16px;
}

.dashboard-section h2 {
  color: var(--accent);
  margin-bottom: 24px;
  font-size: 1.75rem;
}

.table {
  box-shadow: 0 4px 12px var(--shadow-color);
  border-radius: 8px;
  overflow: hidden;
}

.table th {
  background-color: var(--table-head-bg);
  color: var(--table-head-text);
}

.form-group {
  margin-bottom: 16px;
}

.service-buttons .btn {
  margin-right: 8px;
  margin-bottom: 8px;
  border-radius: 6px;
}

.auth-form {
  max-width: 480px;
  margin: 0 auto;
  padding: 32px;
  background-color: var(--auth-form-bg);
  border-radius: 12px;
  box-shadow: 0 4px 12px var(--shadow-color);
}

.auth-form h1, .contact-form h1 {
  text-align: center;
  color: var(--accent);
  margin-bottom: 24px;
  font-size: 1.75rem;
}

.auth-form .btn-primary {
  width: 100%;
  border-radius: 6px;
}

.admin-section {
  padding: 64px 0;
  background-color: var(--white);
}

footer {
  background-color: var(--footer-bg);
  color: var(--footer-text);
  padding: 24px 0;
  font-size: 0.9rem;
  margin-top: auto;
}

.footer-logo {
  max-height: 80px;
  vertical-align: middle;
  margin-left: 8px;
}

.developed-by {
  margin-top: 16px;
  font-size: 0.85rem;
}

.footer-links a {
  display: block;
  padding: 4px 0;
  transition: color 0.3s ease;
}

.footer-links a:hover {
  color: var(--accent);
  text-decoration: underline;
}

.nav-tabs {
  margin-bottom: 0;
  border-bottom: none;
}

.tab-content {
  background-color: var(--white);
  padding: 16px;
  border: 1px solid var(--border-color);
  border-top: none;
  border-radius: 0px;
}

#searchInput {
  max-width: 100%;
  border-radius: 6px;
}

.dark .form-control {
  background-color: var(--input-bg);
  color: var(--text-primary);
  border-color: var(--input-border);
}

.dark .form-control:focus {
  background-color: var(--input-bg);
  color: var(--text-primary);
  border-color: var(--accent);
  box-shadow: 0 0 0 0.2rem rgba(var(--accent), 0.2);
}

.dark .form-control::placeholder {
  color: #6c757d;
}

.dark .modal-content {
  background-color: var(--modal-bg);
  color: var(--text-primary);
  border-color: var(--border-color);
  border-radius: 12px;
}

.dark .modal-header {
  background-color: var(--white);
  color: var(--text-primary);
  border-bottom-color: var(--border-color);
}

.dark .modal-footer {
  background-color: var(--white);
  border-top-color: var(--border-color);
}

.dark .btn-close {
  filter: invert(1) grayscale(100%) brightness(200%);
}

.dark .alert-success {
  background-color: var(--success-bg);
  color: var(--success-text);
}

.dark .alert-danger {
  background-color: var(--error-bg);
  color: var(--error-text);
}

.dark .card {
  background-color: var(--card-bg);
  color: var(--text-primary);
}

.dark .card-header {
  background-color: var(--white);
  color: var(--text-primary);
}

.dark .nav-tabs .nav-link {
  color: var(--text-primary);
}

.dark .nav-tabs .nav-link.active {
  background-color: var(--accent) !important;
  color: var(--hero-text);
  border-color: var(--border-color) var(--border-color) transparent;
}

.dark .tab-content {
  background-color: var(--card-bg);
  border-color: var(--border-color);
}

.dark .table {
  --bs-table-bg: var(--card-bg);
  --bs-table-color: var(--text-primary);
  --bs-table-striped-bg: rgba(255, 255, 255, 0.05);
  --bs-table-striped-color: var(--text-primary);
  --bs-table-active-bg: rgba(255, 255, 255, 0.1);
  --bs-table-active-color: var(--text-primary);
  --bs-table-hover-bg: rgba(255, 255, 255, 0.075);
  --bs-table-hover-color: var(--text-primary);
  border-color: var(--border-color);
}

.dark .form-check-input {
  background-color: var(--input-bg);
  border-color: var(--input-border);
}

.dark .form-check-input:checked {
  background-color: var(--accent);
  border-color: var(--accent);
}

.dark .form-check-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 0.2rem rgba(var(--accent), 0.2);
}

.accordion-item {
  background-color: var(--white);
  border-color: var(--border-color);
  border-radius: 8px;
  margin-bottom: 8px;
}

.accordion-button {
  background-color: var(--white);
  color: var(--text-primary);
  border-radius: 8px;
  font-weight: 500;
}

.accordion-button:not(.collapsed) {
  background-color: var(--accent);
  color: var(--hero-text);
}

.accordion-button:focus {
  box-shadow: 0 0 0 0.2rem rgba(var(--accent), 0.2);
}

.accordion-body {
  background-color: var(--white);
  color: var(--text-primary);
  border-radius: 0 0 8px 8px;
}

.nav-tabs .nav-link.active {
  background-color: var(--accent) !important;
  color: var(--hero-text);
  border-color: var(--border-color) var(--border-color) transparent;
  font-weight: 500;
}

.chat-button {
  position: fixed;
  bottom: 16px;
  right: 16px;
  background: linear-gradient(135deg, var(--hero-gradient-start), var(--hero-gradient-end));
  color: white;
  border: none;
  border-radius: 50px;
  padding: 12px 20px;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  box-shadow: 0 3px 8px var(--shadow-color);
  z-index: 1000;
  transition: transform 0.2s, box-shadow 0.2s;
  margin-bottom: 20px;
}

.chat-button:hover {
  transform: scale(1.05);
  box-shadow: 0 5px 12px var(--shadow-color);
}

.chat-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1050;
  justify-content: center;
  align-items: center;
  overflow-y: auto;
}

.chat-modal-content {
  background: var(--modal-bg);
  border-radius: 16px;
  width: 90%;
  max-width: 480px;
  overflow: hidden;
  box-shadow: 0 8px 24px var(--shadow-color);
}

.chat-header {
  background: linear-gradient(135deg, var(--hero-gradient-start), var(--hero-gradient-end));
  color: var(--hero-text);
  padding: 12px;
  text-align: center;
  font-size: 1.1rem;
  font-weight: 500;
  position: relative;
}

.chat-messages {
  height: 360px;
  overflow-y: auto;
  padding: 16px;
  background: var(--bg-primary);
  display: flex;
  flex-direction: column;
}

.message {
  margin-bottom: 12px;
  padding: 10px 14px;
  border-radius: 16px;
  max-width: 75%;
  word-wrap: break-word;
  box-shadow: 0 1px 4px var(--shadow-color);
}

.user-message {
  background: var(--chat-user-bg);
  color: var(--chat-user-text);
  margin-left: auto;
  border-bottom-right-radius: 4px;
}

.bot-message {
  background: var(--chat-bot-bg);
  color: var(--chat-bot-text);
  margin-right: auto;
  border-bottom-left-radius: 4px;
}

.chat-input {
  display: flex;
  padding: 12px;
  background: var(--modal-bg);
  border-top: 1px solid var(--border-color);
  align-items: center;
  flex-wrap: wrap;
}

.chat-input input {
  flex-grow: 1;
  border-radius: 20px;
  padding: 8px 16px;
  border: 1px solid var(--input-border);
  margin-right: 8px;
  font-size: 0.9rem;
  background-color: var(--input-bg);
  color: var(--text-primary);
  transition: border-color 0.2s;
  margin-bottom: 8px;
}

.chat-input input:focus {
  border-color: var(--accent);
  outline: none;
}

.chat-input button {
  border-radius: 20px;
  padding: 8px 20px;
  background: var(--accent);
  color: white;
  border: none;
  cursor: pointer;
  font-size: 0.9rem;
  transition: background 0.2s;
  margin-bottom: 8px;
}

.chat-input button:hover {
  background: var(--button-hover);
}

.chat-messages::-webkit-scrollbar {
  width: 5px;
}

.chat-messages::-webkit-scrollbar-thumb {
  background: var(--accent);
  border-radius: 10px;
}

.close-modal {
  position: absolute;
  top: 8px;
  right: 12px;
  background: none;
  border: none;
  color: white;
  font-size: 1.25rem;
  cursor: pointer;
  transition: color 0.2s;
}

.close-modal:hover {
  color: #ccc;
}

.loading-dots {
  display: flex;
  justify-content: center;
  align-items: center;
}

.loading-dots span {
  display: inline-block;
  width: 6px;
  height: 6px;
  margin: 0 3px;
  background-color: var(--text-primary);
  border-radius: 50%;
  animation: loading-dots 1.2s infinite ease-in-out both;
}

.loading-dots span:nth-child(1) {
  animation-delay: -0.24s;
}

.loading-dots span:nth-child(2) {
  animation-delay: -0.12s;
}

@keyframes loading-dots {
  0%, 80%, 100% {
    transform: scale(0);
  }
  40% {
    transform: scale(1);
  }
}

.dark .chat-modal-content {
  background: var(--card-bg);
}

.dark .chat-header {
  background: linear-gradient(135deg, var(--hero-gradient-start), var(--hero-gradient-end));
  color: var(--hero-text);
}

.dark .chat-messages {
  background: var(--white);
}

.dark .user-message {
  background: var(--accent);
  color: var(--hero-text);
}

.dark .bot-message {
  background: var(--bg-primary);
  color: var(--text-primary);
}

.dark .chat-input {
  background: var(--card-bg);
  border-top: 1px solid var(--border-color);
}

.dark .chat-input input {
  background-color: var(--input-bg);
  color: var(--text-primary);
  border-color: var(--input-border);
}

.dark .chat-input input:focus {
  border-color: var(--accent);
}

.dark .chat-input button {
  background: var(--accent);
  color: var(--hero-text);
}

.dark .chat-input button:hover {
  background: var(--button-hover);
}

.dark .close-modal {
  color: var(--hero-text);
}

.dark .close-modal:hover {
  color: #bbb;
}

.dark .chat-messages::-webkit-scrollbar-thumb {
  background: var(--accent);
}

.dark .loading-dots span {
  background-color: var(--text-primary);
}

.btn-secondary {
      background: none;
      border: 1px solid #ffffff;
  }

@media (max-width: 900px) {
  .about-section, .dashboard-section, .admin-section {
    padding: 48px 0;
  }

  .auth-form {
    max-width: 100%;
    padding: 24px 16px;
    margin: 0;
  }

  .contact-section .container, .dashboard-section .container {
    padding-left: 8px;
    padding-right: 8px;
  }

  .service-buttons .btn-group {
    flex-direction: column;
  }

  .service-buttons .btn {
    width: 100%;
    margin-bottom: 8px;
  }

  #searchInput {
    width: 100%;
  }

  .chat-button {
    padding: 10px 16px;
    font-size: 0.85rem;
    bottom: 8px;
    right: 8px;
  }

  .chat-modal-content {
    width: 95%;
    max-width: none;
  }

  .chat-messages {
    height: 280px;
  }

  .sidebar.d-none.d-md-block {
    display: none;
  }

  .main-content {
    margin-left: 0;
  }

  .navbar-toggler {
    order: -1;
    margin-right: auto;
  }

  .navbar-brand {
    margin: 0;
  }

  .list-card {
    padding: 12px;
    font-size: 1.1rem;
  }

  .chat-input {
    flex-wrap: wrap;
  }

  .chat-input input {
    margin-bottom: 8px;
    margin-right: 0;
  }

  .chat-input button {
    flex: 1 0 auto;
  }

  h1, h2 {
    font-size: 1.75rem;
  }

  p, li {
    font-size: 1.1rem;
  }

  .btn {
    font-size: 1rem;
    padding: 10px 16px;
  }
}

@media (max-width: 576px) {
  .contact-form, .auth-form {
    padding: 24px 16px;
  }

  .auth-form h1 {
    font-size: 1.5rem;
  }

  .auth-form .mb-3 {
    margin-bottom: 12px !important;
  }

  .dashboard-section h2 {
    font-size: 1.5rem;
  }

  .btn {
    font-size: 0.85rem;
    padding: 8px 12px;
  }

  .modal-dialog {
    margin: 8px;
  }

  .modal-content {
    font-size: 0.85rem;
  }

  .chat-header {
    font-size: 0.9rem;
    padding: 8px;
  }

  .chat-input input {
    font-size: 0.85rem;
    padding: 6px 10px;
  }

  .chat-input button {
    font-size: 0.85rem;
    padding: 6px 12px;
  }

  .message {
    font-size: 0.85rem;
    padding: 6px 10px;
  }
}

@media (max-width: 480px) {
  .auth-form {
    padding: 20px 12px;
  }

  .auth-form .form-control {
    font-size: 0.85rem;
    padding: 8px;
  }

  .auth-form .btn-primary {
    font-size: 0.85rem;
    padding: 8px;
  }

  .table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .table {
    min-width: 500px;
  }
}

@media (max-width: 360px) {
  .auth-form {
    padding: 16px 8px;
  }

  .auth-form h1 {
    font-size: 1.4rem;
  }

  .auth-form .form-label {
    font-size: 0.85rem;
  }
}

.upload-modal .modal-content, .progress-modal .modal-content, .success-modal .modal-content, .error-modal .modal-content {
  background-color: var(--modal-bg);
  border-radius: 12px;
  box-shadow: 0 4px 12px var(--shadow-color);
}

.progress-modal .progress {
  background-color: var(--progress-bg);
  border-radius: 6px;
}

.progress-modal .progress-bar {
  background-color: var(--progress-bar);
}

.success-modal .modal-body {
  background-color: var(--success-bg);
  color: var(--success-text);
  border-radius: 6px;
}

.error-modal .modal-body {
  background-color: var(--error-bg);
  color: var(--error-text);
  border-radius: 6px;
}

img.btn-icon {
  width: 20px;
  height: 20px;
  object-fit: contain;
  vertical-align: middle;
}

.dark img.btn-icon {
  filter: invert(1);
}

img.header-icon-btn {
  width: 20px;
  height: 20px;
  object-fit: contain;
  vertical-align: middle;
  filter: invert(1);
}

img.btn-logo {
  display: inline-block;
  height: 25px;
  width: auto;
  margin-right: 10px;
  margin-left: 10px;
  object-fit: contain;
  vertical-align: middle;
}

.download {
    inset-inline-end: 0;
}

.dropdown-menu {
  background-color: var(--dropdown-bg) !important;
  border-color: var(--border-color);
  border-radius: 8px;
  box-shadow: 0 4px 12px var(--shadow-color);
  z-index: 1050;
  filter: none !important;
}

.dropdown-item {
  color: var(--text-primary) !important;
  padding: 8px 16px;
  filter: none !important;
}

.dropdown-item:hover {
  background-color: var(--accent-dark);
  color: var(--white);
}

.dropdown-item.active {
  background-color: var(--sidebar-link-active);
  color: white;
}

.dark .dropdown-item.active {
  color: #fff;
}

.dark .dropdown-menu {
  background-color: var(--dropdown-bg) !important;
  color: var(--text-primary) !important;
  filter: none !important;
}

.dark .dropdown-item {
  color: var(--text-primary) !important;
  filter: none !important;
}

.upload-btn span, .dropdown-toggle span {
  display: inline !important;
  opacity: 1 !important;
  vertical-align: middle;
}

.navbar .btn {
  color: #fff !important;
}

@media (max-width: 900px) {
  .upload-btn, .dropdown .btn {
    padding: 5px 10px;
    min-width: 36px;
  }

  .btn-primary, .btn-secondary {
    padding: 5px 10px;
  }
}

.sidebar .list-group-item {
  padding: 8px 12px;
  font-size: 0.95rem;
  transition: background-color 0.2s;
  border-radius: 6px;
}

.sidebar .list-group-item:hover {
  background-color: var(--accent-dark);
  color: var(--white);
}

.list-card {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 12px;
  margin-bottom: 12px;
  box-shadow: 0 2px 5px var(--shadow-color);
  transition: box-shadow 0.2s;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.list-card:hover {
  box-shadow: 0 4px 10px var(--shadow-color);
}

.list-header {
  font-size: 0.85rem;
  color: var(--gray-small);
  margin-bottom: 4px;
}

.list-item {
  font-size: 1rem;
  font-weight: 500;
  margin-bottom: 4px;
}

.list-item small {
  font-size: 0.85rem;
  color: var(--gray-small);
}

.list-buttons {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: auto;
  margin-bottom: auto;
}

.list-buttons .btn-icon {
  background: transparent !important;
  border: none;
  padding: 0;
  cursor: pointer;
}

.btn-icon img {
    height: 30px;
    width: auto;
}

.list-buttons .dropdown-menu {
  min-width: 150px;
}

.nav-tabs .nav-link {
  width: 100%;
  text-align: center;
}

.nav-tabs .nav-link.active {
  background-color: var(--accent) !important;
}

.chat-list {
  list-style: none;
  padding: 0;
}

.chat-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border-color);
  cursor: pointer;
  border-radius: 6px;
  transition: background-color 0.2s;
}

.chat-item:hover {
  background-color: var(--accent-dark);
  color: var(--white);
}

.chat-view {
  display: none;
}

.chat-bubbles {
  height: 360px;
  overflow-y: auto;
  padding: 12px;
  background: var(--bg-primary);
  border-radius: 8px;
  margin-bottom: 12px;
}

.message-bubble {
  max-width: 75%;
  padding: 8px 12px;
  border-radius: 16px;
  margin-bottom: 8px;
  font-size: 0.95rem;
}

.user-bubble {
  background-color: var(--chat-user-bg);
  color: var(--chat-user-text);
  margin-left: auto;
}

.admin-bubble {
  background-color: var(--chat-bot-bg);
  color: var(--chat-bot-text);
  margin-right: auto;
}

.chat-input {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.chat-input input {
  flex: 1;
  margin-right: 0;
  min-width: 0;
}

.chat-input img {
  max-width: 24px;
}

.unread-badge {
  background-color: var(--unread-badge);
  color: white;
  border-radius: 50%;
  padding: 1px 5px;
  font-size: 0.75rem;
}

.theme-toggle {
  cursor: pointer;
  font-size: 1.1rem;
}

@media (max-width: 900px) {
  .main-content {
    margin-left: 0;
  }

  .nav-tabs .nav-link {
    width: auto;
  }

  .offcanvas {
    background-color: var(--bg-primary);
    color: var(--text-primary);
  }

  .offcanvas-header {
    background-color: var(--white);
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
  }

  .offcanvas-body {
    background-color: var(--sidebar-bg);
  }

  .dark .offcanvas {
    background-color: var(--bg-primary);
  }

  .dark .offcanvas-header {
    background-color: var(--white);
  }

  .dark .offcanvas-body {
    background-color: var(--sidebar-bg);
  }
}

#pm-list label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

#pm-list .form-check-input {
  margin-right: 8px;
}

#pm-list .badge {
  margin-left: auto;
}

#pm-list .btn {
  margin-left: 8px;
}

#new-card-container .form-control {
  padding: 0;
}

.list-card .shiur-info {
  flex: 1;
}

.list-card .shiur-id {
  font-size: 0.8rem;
  color: var(--gray-small);
}

.list-card .shiur-name {
  font-weight: 600;
  font-size: 1rem;
}

.list-card .shiur-date {
  font-size: 0.85rem;
  color: var(--gray-small);
}

.list-buttons .pending-text {
  font-size: 0.85rem;
  color: var(--gray-small);
}

.chat-input #attachment-preview {
  flex-basis: 100%;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--gray-small);
}

.dark .offcanvas {
  background-color: var(--bg-primary);
  color: var(--text-primary);
}

.dark .offcanvas-header {
  background-color: var(--white);
  color: var(--text-primary);
  border-bottom-color: var(--border-color);
}

.dark .offcanvas-body {
  background-color: var(--sidebar-bg);
  color: var(--text-primary);
}

.dark .offcanvas .list-group-item {
  color: var(--sidebar-link);
}

.dark .offcanvas .list-group-item:hover {
  background-color: var(--accent-dark);
  color: var(--white);
}

.dark .offcanvas .list-group-item.active {
  background-color: var(--sidebar-link-active);
  color: var(--white);
}

.dark .btn-icon img {
    filter: invert(1);
}

.offcanvas, .offcanvas-end {
  min-height: 100vh !important;
}

.offcanvas .list-group-item {
  background-color: transparent;
  border: none;
  color: var(--sidebar-link);
  cursor: pointer;
  padding: 8px 12px;
  border-radius: 6px;
  margin-bottom: 4px;
  transition: background-color 0.2s ease;
}

.offcanvas .list-group-item:hover {
  background-color: var(--accent-dark);
  color: var(--white);
}

.offcanvas .list-group-item.active {
  background-color: var(--sidebar-link-active);
  color: white;
  font-weight: 500;
}

.offcanvas .bottom-tabs,
.sidebar .bottom-tabs {
  border-top: 1px solid var(--border-color);
  padding-top: 16px;
  margin-top: 16px;
}

.offcanvas .bottom-tabs .list-group-item,
.sidebar .bottom-tabs .list-group-item {
  padding: 10px 12px;
}

.offcanvas .bottom-tabs .list-group-item:last-child,
.sidebar .bottom-tabs .list-group-item:last-child {
  color: #dc3545;
}

.dark .offcanvas .bottom-tabs .list-group-item:last-child,
.dark .sidebar .bottom-tabs .list-group-item:last-child {
  color: #ff4136;
}

@media (max-width: 900px) {
  .auth-form {
    padding: 20px;
  }

  .auth-form .btn {
    padding: 12px;
  }

  .auth-form .form-check-label {
    font-size: 0.9rem;
  }

  .footer-logo {
    max-width: 100px;
  }
}