html,
body {
  max-width: 100%;
  overflow-x: hidden;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  background:
    radial-gradient(circle at top, rgba(102, 126, 234, 0.12), transparent 35%),
    linear-gradient(180deg, var(--color-bg-page) 0%, var(--color-bg-page-subtle) 100%);
  color: var(--color-text-main);
  padding-top: 70px;
  transition: var(--theme-transition);
}

html {
  scrollbar-width: thin;
  scrollbar-color: var(--color-brand-primary) var(--color-surface-alt);
}

*::-webkit-scrollbar {
  width: 10px;
  height: 10px;
  transition: width 0.2s ease, height 0.2s ease;
}

*:hover::-webkit-scrollbar {
  width: 14px;
  height: 14px;
}

*::-webkit-scrollbar-track {
  background: var(--color-surface-alt);
  border-radius: 999px;
}

*::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--color-brand-primary), var(--color-brand-secondary));
  border-radius: 999px;
  border: 2px solid var(--color-surface-alt);
}

*::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, var(--color-brand-secondary), var(--color-brand-primary));
}

a {
  color: var(--color-brand-primary);
}

a:hover {
  color: var(--color-brand-secondary);
}

.text-muted {
  color: var(--color-text-muted) !important;
}

.app-shell {
  max-width: var(--app-shell-max-width);
  margin: 0 auto;
  padding-inline: 1.25rem;
}

.app-shell .container-fluid {
  padding-left: 0;
  padding-right: 0;
}

.card,
.modal-content,
.dropdown-menu,
.list-group-item,
.table-responsive,
.alert {
  background-color: var(--color-surface);
  color: var(--color-text-main);
  border-color: var(--color-border);
  transition: var(--theme-transition);
}

.card,
.modal-content {
  border: 1px solid var(--color-border);
  box-shadow: 0 18px 40px rgba(var(--color-shadow-rgb), 0.12);
  border-radius: 12px;
}

.modal-header,
.modal-footer,
.dropdown-divider,
.list-group-item {
  border-color: var(--color-border);
}

.dropdown-menu {
  box-shadow: 0 16px 34px rgba(var(--color-shadow-rgb), 0.22);
}

.dropdown-item {
  color: var(--color-text-main);
}

.dropdown-item:hover,
.dropdown-item:focus {
  background-color: var(--color-surface-alt);
  color: var(--color-text-main);
}

.bg-light,
.bg-white {
  background-color: var(--color-surface-alt) !important;
  color: var(--color-text-main) !important;
}

.table {
  --bs-table-bg: transparent;
  --bs-table-color: var(--color-text-main);
  --bs-table-border-color: var(--color-border);
  margin-bottom: 0;
}

.table-hover > tbody > tr:hover > * {
  --bs-table-accent-bg: var(--color-surface-alt);
  color: var(--color-text-main);
}

.form-control,
.form-select,
.form-check-input {
  background-color: var(--color-form-bg);
  color: var(--color-form-text);
  border-color: var(--color-form-border);
  transition: var(--theme-transition);
}

.form-control::placeholder,
.form-select::placeholder,
textarea::placeholder {
  color: var(--color-form-placeholder);
}

.form-control:focus,
.form-select:focus,
.form-check-input:focus {
  background-color: var(--color-form-bg);
  color: var(--color-form-text);
  border-color: var(--color-form-focus);
  box-shadow: 0 0 0 0.2rem rgba(var(--color-shadow-rgb), 0.12);
}

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

.btn-primary:hover,
.btn-primary:focus,
.btn-primary:active {
  background: var(--color-brand-secondary) !important;
  border-color: var(--color-brand-secondary) !important;
}

.btn-outline-secondary {
  color: var(--color-text-muted);
  border-color: var(--color-border-strong);
}

.btn-outline-secondary:hover,
.btn-outline-secondary:focus {
  background-color: var(--color-surface-alt);
  color: var(--color-text-main);
  border-color: var(--color-border-strong);
}

.navbar {
  background: linear-gradient(135deg, var(--color-brand-primary) 0%, var(--color-brand-secondary) 100%);
  box-shadow: 0 2px 10px rgba(var(--color-shadow-rgb), 0.16);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1030;
  transition: all 0.3s ease;
  padding: 1rem 0;
}

.navbar.scrolled {
  padding: 0.5rem 0;
  box-shadow: 0 4px 20px rgba(var(--color-shadow-rgb), 0.24);
}

.navbar-brand {
  font-weight: 600;
  color: var(--color-text-inverse) !important;
  display: flex;
  align-items: center;
  transition: all 0.3s ease;
}

.navbar-brand img {
  height: 40px;
  transition: all 0.3s ease;
  margin-right: 0.75rem;
}

.navbar.scrolled .navbar-brand img {
  height: 30px;
}

.navbar-brand .brand-text {
  transition: all 0.3s ease;
  font-size: 1.25rem;
}

.navbar.scrolled .navbar-brand .brand-text {
  font-size: 1.1rem;
}

.navbar-nav .nav-link {
  transition: all 0.3s ease;
  padding: 0.5rem 1rem !important;
}

.navbar-nav .nav-link,
.navbar-nav .dropdown-toggle,
.navbar-nav .theme-toggle-button {
  color: rgba(255, 255, 255, 0.92) !important;
}

.navbar-nav .nav-link:hover,
.navbar-nav .dropdown-toggle:hover {
  color: var(--color-text-inverse) !important;
}

.navbar-nav .nav-link.active,
.navbar-nav .dropdown-toggle.active {
  color: var(--color-text-inverse) !important;
  background: rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.22);
  font-weight: 600;
}

.dropdown-item.active,
.dropdown-item:active {
  background: var(--color-brand-primary);
  color: var(--color-text-inverse);
}

.navbar.scrolled .navbar-nav .nav-link {
  padding: 0.4rem 0.8rem !important;
  font-size: 0.95rem;
}

.theme-toggle-button {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  min-width: 8.5rem;
  justify-content: center;
}

.theme-toggle-button i {
  font-size: 1rem;
}

.theme-toggle-button .theme-toggle-label {
  line-height: 1;
}

.theme-toggle-nav-item {
  display: flex;
  align-items: center;
  padding-left: 0.5rem;
}

.stat-card {
  background: linear-gradient(135deg, var(--color-brand-primary) 0%, var(--color-brand-secondary) 100%);
  color: var(--color-text-inverse);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 1rem;
}

.stat-card h3 {
  font-size: 2.5rem;
  font-weight: 700;
  margin: 0;
}

.stat-card p {
  margin: 0;
  opacity: 0.9;
}

.note-content,
.tinymce-content {
  line-height: 1.6;
  word-wrap: break-word;
}

.note-content img,
.tinymce-content img {
  max-width: 100%;
  height: auto;
  border-radius: 4px;
  margin: 0.5em 0;
}

.note-content table,
.tinymce-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1em 0;
}

.note-content table td,
.note-content table th,
.tinymce-content table td,
.tinymce-content table th {
  border: 1px solid var(--color-border);
  padding: 8px;
  text-align: left;
}

.note-content table th,
.tinymce-content table th {
  background-color: var(--color-surface-alt);
  font-weight: 600;
}

.note-content p,
.tinymce-content p {
  margin: 0.5em 0;
}

.note-content ul,
.note-content ol,
.tinymce-content ul,
.tinymce-content ol {
  margin: 0.5em 0;
  padding-left: 1.5em;
}

.note-content a,
.tinymce-content a {
  color: var(--color-brand-primary);
  text-decoration: none;
}

.note-content a:hover,
.tinymce-content a:hover {
  text-decoration: underline;
}

.note-content blockquote,
.tinymce-content blockquote {
  border-left: 4px solid var(--color-brand-primary);
  padding-left: 1em;
  margin: 1em 0;
  color: var(--color-text-muted);
  font-style: italic;
}

.notes-forum-card .forum-note-item {
  border-left: 4px solid var(--color-brand-primary);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.notes-forum-card .forum-note-item:hover {
  box-shadow: 0 0.5rem 1rem rgba(var(--color-shadow-rgb), 0.16);
  transform: translateY(-1px);
}

.notes-forum-card .forum-note-item.is-pinned {
  border-left-color: var(--color-warning);
  background: linear-gradient(180deg, rgba(245, 158, 11, 0.08) 0%, var(--color-surface) 100%);
}

.notes-forum-card .forum-note-meta {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.notes-forum-card .forum-note-content img {
  max-width: 100%;
  height: auto;
  border-radius: 0.5rem;
}

.notes-forum-card .forum-note-content {
  line-height: 1.65;
}

#calendar {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

.fc-event {
  cursor: pointer;
  border-radius: 4px;
}

.fc-event:hover {
  opacity: 0.8;
}

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

.fc-button {
  background-color: var(--color-brand-primary) !important;
  border-color: var(--color-brand-primary) !important;
}

.fc-button:hover,
.fc-button-active {
  background-color: var(--color-brand-secondary) !important;
  border-color: var(--color-brand-secondary) !important;
}