/* Abbreviations Cheatsheet Styles - Material Design */

#abbreviations-page {
  --md-primary: #1a73e8;
  --md-primary-light: #e8f0fe;
  --md-primary-dark: #0d47a1;
  --md-secondary: #5f6368;
  --md-surface: #ffffff;
  --md-surface-variant: #f1f3f4;
  --md-on-surface: #202124;
  --md-on-surface-variant: #5f6368;
  --md-outline: #dadce0;
  --md-shadow-1: 0 1px 3px rgba(60, 64, 67, 0.12), 0 1px 2px rgba(60, 64, 67, 0.08);
  --md-shadow-2: 0 2px 6px rgba(60, 64, 67, 0.15), 0 1px 2px rgba(60, 64, 67, 0.1);
  --md-shadow-3: 0 4px 12px rgba(60, 64, 67, 0.2), 0 2px 4px rgba(60, 64, 67, 0.12);
  --md-radius: 0;
  --md-radius-sm: 0;
  --md-spacing: 16px;
  font-family: 'Google Sans', 'Roboto', 'Noto Sans', system-ui, sans-serif;
  line-height: 1.6;
  color: var(--md-on-surface);
}

/* Dark theme support - Material Design dark */
[data-md-color-scheme="slate"] #abbreviations-page {
  --md-primary: #8ab4f8;
  --md-primary-light: rgba(138, 180, 248, 0.12);
  --md-primary-dark: #aecbfa;
  --md-secondary: #9aa0a6;
  --md-surface: #1e1e2e;
  --md-surface-variant: #292a2e;
  --md-on-surface: #e8eaed;
  --md-on-surface-variant: #9aa0a6;
  --md-outline: #3c4043;
  --md-shadow-1: 0 1px 3px rgba(0, 0, 0, 0.3), 0 1px 2px rgba(0, 0, 0, 0.24);
  --md-shadow-2: 0 2px 6px rgba(0, 0, 0, 0.4), 0 1px 2px rgba(0, 0, 0, 0.28);
  --md-shadow-3: 0 4px 12px rgba(0, 0, 0, 0.5), 0 2px 4px rgba(0, 0, 0, 0.32);
}

#abbreviations-page * {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* Header and subtitle - Material Display/Headline style */
#abbreviations-page .page-header {
  margin-bottom: calc(var(--md-spacing) * 1.5);
  padding-bottom: calc(var(--md-spacing) * 0.75);
  border-bottom: 1px solid var(--md-outline);
}

#abbreviations-page .subtitle {
  color: var(--md-on-surface-variant);
  font-size: 0.875rem;
  font-weight: 400;
  letter-spacing: 0.02em;
}

/* Toolbar - Material surface with elevation */
#abbreviations-page .toolbar {
  display: flex;
  gap: 8px;
  flex-wrap: nowrap;
  margin-bottom: calc(var(--md-spacing) * 1.5);
  align-items: center;
  background: var(--md-surface);
  padding: 8px 10px;
  border-radius: var(--md-radius);
  box-shadow: var(--md-shadow-1);
}

#abbreviations-page .search-container {
  flex: 1 1 auto;
  min-width: 0;
  position: relative;
}

/* Search field - Material outlined */
#abbreviations-page .search {
  width: 100%;
  padding: 8px 14px 8px 42px;
  border: 1px solid var(--md-outline);
  border-radius: var(--md-radius-sm);
  background: var(--md-surface);
  color: var(--md-on-surface);
  font-size: 0.8125rem;
  transition: border-color 0.2s, box-shadow 0.2s;
  font-family: inherit;
}

#abbreviations-page .search::placeholder {
  color: var(--md-on-surface-variant);
  opacity: 0.7;
}

#abbreviations-page .search:focus {
  outline: none;
  border-color: var(--md-primary);
  box-shadow: 0 0 0 1px var(--md-primary);
}

#abbreviations-page .search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--md-on-surface-variant);
  pointer-events: none;
  font-size: 0.9375rem;
}

/* Filter dropdown - Material outlined select */
#abbreviations-page .filter {
  padding: 8px 14px;
  border: 1px solid var(--md-outline);
  border-radius: var(--md-radius-sm);
  background: var(--md-surface);
  color: var(--md-on-surface);
  font-size: 0.8125rem;
  cursor: pointer;
  min-width: 160px;
  transition: border-color 0.2s, box-shadow 0.2s;
  font-family: inherit;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24'%3E%3Cpath fill='%235f6368' d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 6px center;
  background-size: 20px;
  padding-right: 32px;
}

#abbreviations-page .filter:focus {
  outline: none;
  border-color: var(--md-primary);
  box-shadow: 0 0 0 1px var(--md-primary);
}

/* Add button - Material filled tonal */
#abbreviations-page .add-link {
  padding: 8px 16px;
  background: var(--md-primary);
  color: #fff;
  text-decoration: none;
  border-radius: var(--md-radius-sm);
  font-weight: 500;
  font-size: 0.8125rem;
  letter-spacing: 0.02em;
  transition: box-shadow 0.2s, background-color 0.2s;
  white-space: nowrap;
  box-shadow: var(--md-shadow-1);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

#abbreviations-page .add-link:hover {
  box-shadow: var(--md-shadow-2);
  background: var(--md-primary-dark);
}

#abbreviations-page .add-link:focus {
  outline: none;
  box-shadow: 0 0 0 2px var(--md-primary-light), var(--md-shadow-1);
}

/* Cards container */
#abbreviations-page #cards {
  min-height: 100px;
  display: grid;
  gap: 12px;
}

/* Cards - Material surface with elevation */
#abbreviations-page .card {
  background: var(--md-surface);
  border: 1px solid var(--md-outline);
  border-radius: var(--md-radius);
  overflow: hidden;
  transition: box-shadow 0.3s ease, border-color 0.3s ease;
  box-shadow: var(--md-shadow-1);
}

#abbreviations-page .card:hover {
  box-shadow: var(--md-shadow-3);
  border-color: var(--md-primary);
}

#abbreviations-page .card.open {
  border-color: var(--md-primary);
  box-shadow: var(--md-shadow-2);
}

/* Card header - Material list item style */
#abbreviations-page .card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 14px;
  cursor: pointer;
  user-select: none;
  background: var(--md-surface-variant);
  transition: background-color 0.2s;
  position: relative;
}

#abbreviations-page .card-header:hover {
  background: var(--md-outline);
  opacity: 0.9;
}

#abbreviations-page .card-header:focus {
  outline: none;
}

#abbreviations-page .card-header:focus-visible {
  outline: 2px solid var(--md-primary);
  outline-offset: -2px;
}

#abbreviations-page .card-header h2 {
  font-size: 1rem;
  color: var(--md-on-surface);
  margin: 0;
  font-weight: 500;
  letter-spacing: 0.01em;
  font-family: 'Google Sans', 'Roboto', 'Noto Sans', system-ui, sans-serif;
}

#abbreviations-page .card-header .arrow {
  font-size: 1rem;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  color: var(--md-on-surface-variant);
  flex-shrink: 0;
}

#abbreviations-page .card.open .arrow {
  transform: rotate(180deg);
}

/* Card body */
#abbreviations-page .card-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1), padding 0.35s ease;
}

#abbreviations-page .card.open .card-body {
  max-height: 2000px;
  padding: 0 14px 14px;
}

/* Answers - Material list item */
#abbreviations-page .answer {
  border-left: 3px solid var(--md-primary);
  padding: 12px 16px;
  margin-bottom: 8px;
  background: var(--md-surface-variant);
  border-radius: 0 var(--md-radius-sm) var(--md-radius-sm) 0;
}

#abbreviations-page .answer:last-child {
  margin-bottom: 0;
}

#abbreviations-page .answer h3 {
  font-size: 0.875rem;
  color: var(--md-on-surface);
  margin: 0 0 4px 0;
  font-weight: 500;
}

#abbreviations-page .answer .tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}

/* Material chip style for tags */
#abbreviations-page .tag {
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: 16px;
  background: var(--md-primary-light);
  color: var(--md-primary);
  font-weight: 500;
  letter-spacing: 0.02em;
}

#abbreviations-page .definition {
  color: var(--md-on-surface-variant);
  font-size: 0.8125rem;
  margin: 0;
  line-height: 1.5;
}

/* Empty state - Material empty state */
#abbreviations-page .no-results {
  text-align: center;
  padding: calc(var(--md-spacing) * 3) 16px;
  color: var(--md-on-surface-variant);
}

#abbreviations-page .no-results .icon {
  font-size: 3.5rem;
  margin-bottom: 16px;
  opacity: 0.5;
}

#abbreviations-page .no-results p {
  margin: 8px 0;
  font-size: 1rem;
}

#abbreviations-page .no-results a {
  color: var(--md-primary);
  text-decoration: none;
  font-weight: 500;
}

#abbreviations-page .no-results a:hover {
  text-decoration: underline;
}

/* How-to section - Material surface with elevation */
#abbreviations-page .howto {
  background: var(--md-surface);
  border: 1px solid var(--md-outline);
  border-radius: var(--md-radius);
  padding: 24px;
  margin-top: calc(var(--md-spacing) * 2);
  box-shadow: var(--md-shadow-1);
}

#abbreviations-page .howto h2 {
  color: var(--md-on-surface);
  margin: 0 0 16px 0;
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: -0.01em;
}

#abbreviations-page .howto ol {
  padding-left: 24px;
  margin: 0;
}

#abbreviations-page .howto li {
  margin-bottom: 12px;
  line-height: 1.6;
  color: var(--md-on-surface);
}

#abbreviations-page .howto code {
  background: var(--md-surface-variant);
  padding: 2px 8px;
  border-radius: 4px;
  color: var(--md-on-surface);
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.875em;
}

#abbreviations-page .howto pre {
  background: var(--md-surface);
  border: 1px solid var(--md-outline);
  border-radius: var(--md-radius-sm);
  padding: 16px;
  margin: 12px 0;
  overflow-x: auto;
}

#abbreviations-page .howto pre code {
  background: none;
  padding: 0;
  font-size: 0.875rem;
}

/* Count badge - Material tonal badge */
#abbreviations-page .count-badge {
  display: inline-block;
  padding: 4px 10px;
  background: var(--md-primary-light);
  color: var(--md-primary);
  border-radius: 16px;
  font-size: 0.8125rem;
  font-weight: 500;
  margin-left: 8px;
  vertical-align: middle;
}

/* Responsive - Material breakpoints */
@media (max-width: 640px) {
  #abbreviations-page .toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  #abbreviations-page .search-container {
    width: 100%;
  }

  #abbreviations-page .filter {
    width: 100%;
  }

  #abbreviations-page .add-link,
  #abbreviations-page .add-btn {
    width: 100%;
    justify-content: center;
  }

  #abbreviations-page .card-header h2 {
    font-size: 1rem;
  }
}

/* ===== Modal & Form Styles ===== */
.modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal[hidden] {
  display: none;
}

.modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(2px);
}

.modal-content {
  position: relative;
  background: var(--md-surface);
  border: 1px solid var(--md-outline);
  border-radius: var(--md-radius-sm);
  box-shadow: var(--md-shadow-3);
  padding: 1.5rem;
  width: 100%;
  max-width: 480px;
  max-height: 90vh;
  overflow-y: auto;
  animation: slide-up 0.2s ease-out;
}

@keyframes slide-up {
  from { opacity: 0; transform: translateY(1rem); }
  to { opacity: 1; transform: translateY(0); }
}

.modal-content h2 {
  font-size: 1.25rem;
  color: var(--md-on-surface);
  margin-bottom: 1rem;
  font-weight: 500;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--md-on-surface);
  margin-bottom: 0.25rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.625rem 0.75rem;
  border: 1px solid var(--md-outline);
  border-radius: var(--md-radius-sm);
  background: var(--md-surface);
  color: var(--md-on-surface);
  font-size: 0.875rem;
  font-family: inherit;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--md-primary);
  box-shadow: 0 0 0 2px var(--md-primary-light);
}

.form-group .hint {
  display: block;
  font-size: 0.75rem;
  color: var(--md-on-surface-variant);
  margin-top: 0.25rem;
}

.form-group input:invalid:not(:placeholder-shown) {
  border-color: #d32f2f;
}

.form-actions {
  display: flex;
  gap: 0.75rem;
  justify-content: flex-end;
  margin-top: 1.25rem;
}

.btn-submit {
  padding: 0.625rem 1.25rem;
  background: var(--md-primary);
  color: #fff;
  border: none;
  border-radius: var(--md-radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.2s, box-shadow 0.2s;
}

.btn-submit:hover:not(:disabled) {
  background: var(--md-primary-dark);
  box-shadow: var(--md-shadow-1);
}

.btn-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-cancel {
  padding: 0.625rem 1.25rem;
  background: transparent;
  color: var(--md-on-surface-variant);
  border: 1px solid var(--md-outline);
  border-radius: var(--md-radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.2s;
}

.btn-cancel:hover {
  background: var(--md-surface-variant);
}

.form-status {
  margin-top: 0.75rem;
  font-size: 0.8125rem;
  padding: 0.5rem;
  border-radius: var(--md-radius-sm);
}

.form-status.success {
  background: #e8f5e9;
  color: #2e7d32;
  border: 1px solid #c8e6c9;
}

.form-status.error {
  background: #ffebee;
  color: #c62828;
  border: 1px solid #ffcdd2;
}

.form-status.info {
  background: var(--md-primary-light);
  color: var(--md-primary);
  border: 1px solid var(--md-outline);
}

/* Add button styles */
.add-btn {
  padding: 8px 16px;
  background: var(--md-primary);
  color: #fff;
  border: none;
  border-radius: var(--md-radius-sm);
  font-weight: 500;
  font-size: 0.8125rem;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: box-shadow 0.2s, background-color 0.2s;
  white-space: nowrap;
  box-shadow: var(--md-shadow-1);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.add-btn:hover {
  box-shadow: var(--md-shadow-2);
  background: var(--md-primary-dark);
}

.add-btn:focus {
  outline: none;
  box-shadow: 0 0 0 2px var(--md-primary-light), var(--md-shadow-1);
}

/* Focus trap for modal */
.modal-content:focus {
  outline: none;
}