/**
 * John Tromp Lambda Diagrams Workstation - Modal Styles
 * Modals for Presets, Authentication, Formula Repository, and Guides
 */

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  backdrop-filter: blur(2px);
}

.modal-box {
  background: var(--bg-panel);
  border: 1px solid var(--border-light);
  border-radius: 6px;
  width: 680px;
  max-width: 90vw;
  max-height: 85vh;
  overflow-y: auto;
  padding: 24px;
}

.modal-box-lg {
  width: 880px;
  max-width: 94vw;
  max-height: 88vh;
  display: flex;
  flex-direction: column;
}

.modal-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

.modal-top h2 {
  font-size: 16px;
  font-weight: 600;
}

.close-modal-btn {
  background: none;
  border: none;
  font-size: 18px;
  color: var(--text-dim);
  cursor: pointer;
  padding: 2px 6px;
}

.close-modal-btn:hover {
  color: var(--text);
}

.modal-inner {
  font-size: 13px;
  line-height: 1.65;
  color: var(--text-muted);
}

.modal-inner h3 {
  font-size: 14px;
  margin: 14px 0 6px;
  color: var(--text);
}

.modal-inner p {
  margin-bottom: 10px;
}

.modal-inner ul {
  margin-left: 18px;
  margin-bottom: 10px;
}

.modal-inner code {
  font-family: var(--font-code);
  background: var(--bg-subpanel);
  border: 1px solid var(--border);
  padding: 1px 4px;
  border-radius: 3px;
  font-size: 12px;
  color: var(--text);
}

.modal-footer-note {
  font-size: 11px;
  color: var(--text-dim);
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px solid var(--border);
}

/* =========================================================================
 * PRESETS TABLE STYLES
 * ========================================================================= */
.preset-filter-toolbar {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 12px;
}

.preset-search-input {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  padding: 7px 12px;
  font-size: 12px;
  outline: none;
  width: 100%;
  transition: border-color 0.15s;
}

.preset-search-input:focus {
  border-color: var(--border-light);
}

.preset-category-tabs {
  display: flex;
  gap: 4px;
  overflow-x: auto;
  padding-bottom: 2px;
}

.preset-cat-tab {
  background: var(--bg-subpanel);
  border: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 11px;
  font-weight: 500;
  padding: 4px 10px;
  border-radius: 3px;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.15s ease;
}

.preset-cat-tab:hover {
  color: var(--text);
  border-color: var(--border-light);
}

.preset-cat-tab.active {
  background: var(--text);
  color: var(--accent-inv);
  border-color: var(--text);
  font-weight: 600;
}

.presets-table-container {
  flex: 1;
  overflow-y: auto;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-base);
  max-height: 52vh;
}

.presets-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
  text-align: left;
}

.presets-table th {
  background: var(--bg-panel);
  color: var(--text-dim);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 5;
}

.preset-row {
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: background 0.12s ease;
}

.preset-row:hover {
  background: var(--bg-subpanel);
}

.preset-row:last-child {
  border-bottom: none;
}

.preset-row td {
  padding: 8px 12px;
  vertical-align: middle;
}

.preset-cell-name {
  font-weight: 600;
  color: var(--text);
  font-family: var(--font-code);
  white-space: nowrap;
}

.preset-cell-code {
  font-family: var(--font-code);
  font-size: 11px;
  color: var(--text-muted);
  word-break: break-all;
}

.preset-cell-code code {
  background: var(--bg-subpanel);
  border: 1px solid var(--border);
  padding: 1px 4px;
  border-radius: 3px;
}

.preset-cell-cat {
  color: var(--text-dim);
  font-size: 11px;
  white-space: nowrap;
}

.preset-cell-desc {
  color: var(--text-muted);
  font-size: 11px;
  line-height: 1.4;
}

/* =========================================================================
 * AUTH & USER MODAL STYLES
 * ========================================================================= */
.auth-box {
  width: 420px;
  max-width: 92vw;
}

.auth-tabs {
  display: flex;
  gap: 2px;
  background: var(--bg-base);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2px;
  margin-bottom: 16px;
}

.auth-tab {
  flex: 1;
  padding: 6px;
  background: transparent;
  border: none;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-dim);
  cursor: pointer;
  border-radius: 3px;
  text-align: center;
  transition: background 0.15s, color 0.15s;
}

.auth-tab.active {
  background: var(--bg-subpanel);
  color: var(--text);
  border: 1px solid var(--border);
}

.form-group {
  margin-bottom: 14px;
}

.form-label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  margin-bottom: 5px;
}

.form-input {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  padding: 8px 12px;
  font-size: 13px;
  outline: none;
  transition: border-color 0.15s;
}

.form-input:focus {
  border-color: var(--border-light);
}

.auth-message {
  font-size: 12px;
  padding: 8px 10px;
  border-radius: 4px;
  margin-bottom: 12px;
  display: none;
}

.auth-message.error {
  display: block;
  background: var(--bg-subpanel);
  border: 1px solid var(--border-light);
  color: var(--text);
}

.auth-message.success {
  display: block;
  background: var(--bg-subpanel);
  border: 1px solid var(--border);
  color: var(--text);
}

.profile-card {
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-base);
  padding: 16px;
  margin-bottom: 16px;
}

.profile-row {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  margin-bottom: 8px;
  color: var(--text-muted);
}

.profile-row:last-child {
  margin-bottom: 0;
}

.profile-value {
  font-weight: 600;
  color: var(--text);
  font-family: var(--font-code);
}

/* =========================================================================
 * EXPRESSION REPOSITORY MODAL STYLES
 * ========================================================================= */
.repo-modal-box {
  width: 920px;
  max-width: 96vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
}

.repo-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.repo-search-box {
  flex: 1;
  min-width: 220px;
}

.repo-card-grid {
  flex: 1;
  overflow-y: auto;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px;
  padding: 2px;
  max-height: 52vh;
}

.repo-card {
  background: var(--bg-base);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 12px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: border-color 0.15s, background-color 0.15s;
}

.repo-card:hover {
  border-color: var(--border-light);
  background: var(--bg-subpanel);
}

.repo-card-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 6px;
}

.repo-card-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  word-break: break-word;
}

.repo-card-code {
  font-family: var(--font-code);
  font-size: 11px;
  color: var(--text-muted);
  background: var(--bg-panel);
  border: 1px solid var(--border);
  padding: 6px 8px;
  border-radius: 3px;
  word-break: break-all;
  margin: 6px 0;
  max-height: 55px;
  overflow: hidden;
}

.repo-card-desc {
  font-size: 11px;
  color: var(--text-dim);
  line-height: 1.4;
  margin-bottom: 8px;
}

.repo-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: 10px;
}

.tag-pill {
  font-size: 9px;
  background: var(--bg-subpanel);
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 1px 5px;
  border-radius: 2px;
}

.repo-card-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border);
  padding-top: 8px;
  margin-top: auto;
}

.repo-empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 40px 20px;
  color: var(--text-dim);
  font-size: 13px;
}