/* =========================================================================
   Models & Datasets — GRAIPH design system
   Uses tokens from /graiph-tokens.css (dark industrial palette).
   ========================================================================= */

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--graiph-font);
  background: var(--graiph-bg-primary);
  color: var(--graiph-text-primary);
  font-size: var(--graiph-font-md);
  min-height: 100vh;
}

.hidden {
  display: none !important;
}

/* Lucide icons render as <svg data-lucide>; keep them from intercepting clicks */
svg[data-lucide] {
  width: 16px;
  height: 16px;
  pointer-events: none;
  flex-shrink: 0;
}

/* Spinner (applied to the rendered loader-circle svg) */
.graiph-spinner {
  animation: graiph-spin 1s linear infinite;
}
@keyframes graiph-spin {
  to {
    transform: rotate(360deg);
  }
}

/* ── Buttons ─────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 16px;
  border: 1px solid transparent;
  border-radius: var(--graiph-radius-md);
  font-family: var(--graiph-font);
  font-size: var(--graiph-font-md);
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
  text-decoration: none;
  white-space: nowrap;
}
.btn svg[data-lucide] {
  pointer-events: none;
}
.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-sm {
  padding: 6px 12px;
  font-size: var(--graiph-font-sm);
}

.btn-secondary {
  background: var(--graiph-bg-elevated);
  color: var(--graiph-text-primary);
  border-color: var(--graiph-border);
}
.btn-secondary:hover {
  border-color: var(--graiph-border-hover);
}

.btn-danger {
  background: transparent;
  color: var(--graiph-alert-error);
  border-color: var(--graiph-border);
}
.btn-danger:hover {
  background: rgba(229, 57, 53, 0.1);
  border-color: var(--graiph-alert-error);
}

/* ── Header ──────────────────────────────────────── */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 32px;
  background: var(--graiph-bg-secondary);
  border-bottom: 1px solid var(--graiph-border);
}
.header-left {
  display: flex;
  align-items: center;
  gap: 12px;
}
.back-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: var(--graiph-radius-md);
  color: var(--graiph-text-secondary);
  border: 1px solid var(--graiph-border);
}
.back-link:hover {
  color: var(--graiph-text-primary);
  border-color: var(--graiph-border-hover);
}
.header-left h1 {
  font-size: var(--graiph-font-lg);
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}
.header-left h1 svg[data-lucide] {
  width: 20px;
  height: 20px;
  color: var(--graiph-accent-text);
}
.subtitle {
  font-size: var(--graiph-font-sm);
  color: var(--graiph-text-muted);
  padding-left: 4px;
  border-left: 1px solid var(--graiph-border);
  margin-left: 4px;
}
.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
}
.user-info {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: var(--graiph-font-sm);
  color: var(--graiph-text-secondary);
}
.user-info svg[data-lucide] {
  width: 15px;
  height: 15px;
  color: var(--graiph-accent-text);
}

/* ── Tab bar ─────────────────────────────────────── */
.tab-bar {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0 32px;
  background: var(--graiph-bg-secondary);
  border-bottom: 1px solid var(--graiph-border);
}
.tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 11px 16px;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  font-family: var(--graiph-font);
  font-size: var(--graiph-font-md);
  font-weight: 500;
  color: var(--graiph-text-secondary);
  cursor: pointer;
}
.tab-btn:hover {
  color: var(--graiph-text-primary);
}
.tab-btn.active {
  color: var(--graiph-text-primary);
  border-bottom-color: var(--graiph-accent);
}
.tab-btn svg[data-lucide] {
  width: 15px;
  height: 15px;
}
.tab-refresh {
  margin-left: auto;
  margin-block: 6px;
}

/* ── Content / Section ───────────────────────────── */
.main-content {
  padding: 28px 32px;
  max-width: 1280px;
  margin: 0 auto;
}
.section {
  background: var(--graiph-bg-surface);
  border: 1px solid var(--graiph-border);
  border-radius: var(--graiph-radius-lg);
  overflow: hidden;
}
.section + .section,
.model-section + .model-section {
  margin-top: 24px;
}
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--graiph-border);
  background: var(--graiph-bg-secondary);
}
.section-header h2 {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: var(--graiph-font-lg);
  font-weight: 700;
}
.section-header h2 svg[data-lucide] {
  width: 18px;
  height: 18px;
  color: var(--graiph-accent-text);
}
.section-meta {
  font-size: var(--graiph-font-sm);
  font-weight: 400;
  color: var(--graiph-text-muted);
  margin-left: 8px;
}
.section-body {
  padding: 16px 20px;
  border-bottom: 1px solid var(--graiph-border);
}
.subsection-header {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 10px 20px;
  font-size: var(--graiph-font-sm);
  font-weight: 600;
  color: var(--graiph-text-secondary);
  background: var(--graiph-bg-tertiary);
  border-top: 1px solid var(--graiph-border);
  border-bottom: 1px solid var(--graiph-border);
}
.subsection-header svg[data-lucide] {
  width: 14px;
  height: 14px;
}

/* ── Tables (dense, sticky header) ───────────────── */
.table-container {
  max-height: calc(100vh - 260px);
  overflow: auto;
}
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--graiph-font-sm);
}
.data-table thead th {
  position: sticky;
  top: 0;
  z-index: 1;
  background: var(--graiph-bg-tertiary);
  color: var(--graiph-text-secondary);
  text-align: left;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: var(--graiph-font-xs);
  padding: 10px 16px;
  border-bottom: 1px solid var(--graiph-border);
}
.data-table tbody td {
  padding: 11px 16px;
  border-bottom: 1px solid var(--graiph-border);
  color: var(--graiph-text-primary);
  vertical-align: middle;
}
.clickable-row {
  cursor: pointer;
}
.clickable-row:hover {
  background: var(--graiph-bg-hover);
}
.notes-cell {
  max-width: 280px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--graiph-text-secondary);
}
.mono {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: var(--graiph-font-xs);
}
.loading-cell {
  text-align: center;
  color: var(--graiph-text-muted);
  padding: 28px 16px !important;
}

/* ── Version / split badges ──────────────────────── */
.version-badge {
  display: inline-block;
  padding: 2px 9px;
  margin-left: 6px;
  border-radius: 999px;
  font-family: var(--graiph-font);
  font-size: var(--graiph-font-xs);
  font-weight: 600;
  border: 1px solid transparent;
}
.badge-current {
  color: var(--graiph-accent-text);
  background: var(--graiph-accent-muted);
  border-color: var(--graiph-accent);
}
.badge-candidate {
  color: var(--graiph-alert-warning);
  background: rgba(245, 166, 35, 0.12);
  border-color: var(--graiph-alert-warning);
}
.badge-previous {
  color: var(--graiph-text-secondary);
  background: var(--graiph-bg-elevated);
  border-color: var(--graiph-border);
}
.pointer-summary {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: var(--graiph-font-sm);
}
.pointer-none {
  color: var(--graiph-text-muted);
  font-size: var(--graiph-font-xs);
}
.metric-value {
  color: var(--graiph-accent-text);
  font-weight: 600;
}

.split-badge {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 999px;
  font-size: var(--graiph-font-xs);
  font-weight: 600;
  border: 1px solid var(--graiph-border);
  color: var(--graiph-text-secondary);
  background: var(--graiph-bg-elevated);
}
.split-train {
  color: var(--graiph-accent-text);
  background: var(--graiph-accent-muted);
  border-color: var(--graiph-accent);
}
.split-val {
  color: var(--graiph-alert-info);
  background: rgba(33, 150, 243, 0.12);
  border-color: var(--graiph-alert-info);
}
.split-test {
  color: var(--graiph-alert-warning);
  background: rgba(245, 166, 35, 0.12);
  border-color: var(--graiph-alert-warning);
}

/* ── Data tree (Datasets tab) ────────────────────── */
.tree-row {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--graiph-border);
  cursor: pointer;
  user-select: none;
  font-size: var(--graiph-font-sm);
}
.tree-row:hover {
  background: var(--graiph-bg-hover);
}
.tree-chevron {
  color: var(--graiph-text-muted);
  transition: transform 0.15s;
}
svg.tree-chevron[data-lucide] {
  width: 14px;
  height: 14px;
}
.tree-node.open > .tree-row .tree-chevron {
  transform: rotate(90deg);
}
svg.tree-icon[data-lucide] {
  width: 15px;
  height: 15px;
  color: var(--graiph-text-secondary);
}
.tree-label {
  font-weight: 600;
  white-space: nowrap;
}
.tree-desc {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--graiph-text-secondary);
}
.tree-count {
  margin-left: auto;
  color: var(--graiph-text-muted);
  font-size: var(--graiph-font-xs);
  white-space: nowrap;
}
.tree-row .tree-desc + .tree-count {
  margin-left: 0;
}
.tree-date {
  color: var(--graiph-text-muted);
  font-size: var(--graiph-font-xs);
  white-space: nowrap;
}
.tree-children {
  margin-left: 23px;
  border-left: 1px solid var(--graiph-border);
}
.tree-children .tree-row {
  padding: 8px 14px;
}
.tree-section-label {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 9px 16px;
  font-size: var(--graiph-font-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--graiph-text-muted);
  background: var(--graiph-bg-tertiary);
  border-bottom: 1px solid var(--graiph-border);
}
.tree-section-label svg[data-lucide] {
  width: 13px;
  height: 13px;
}
.image-breakdown {
  color: var(--graiph-text-muted);
  font-size: var(--graiph-font-xs);
}
.tree-empty {
  padding: 14px 16px;
  font-size: var(--graiph-font-sm);
  color: var(--graiph-text-muted);
  border-bottom: 1px solid var(--graiph-border);
}
.tree-table {
  border-bottom: 1px solid var(--graiph-border);
}
.tree-table thead th {
  position: static;
}
.tree-children .loading-block {
  padding: 16px;
}
.tree-children .error-block {
  border-radius: 0;
  border-left: none;
  border-right: none;
}

/* Aggregate chips shown when a dataset branch expands */
.tree-stats {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--graiph-border);
  background: var(--graiph-bg-tertiary);
}
.stat-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: var(--graiph-font-xs);
  color: var(--graiph-text-secondary);
  background: var(--graiph-bg-elevated);
  border: 1px solid var(--graiph-border);
}
.stat-chip b {
  color: var(--graiph-text-primary);
  font-weight: 700;
}
.stat-chip.split-train b {
  color: var(--graiph-accent-text);
}
.stat-chip.split-val b {
  color: var(--graiph-alert-info);
}
.stat-chip.split-test b {
  color: var(--graiph-alert-warning);
}
.tree-stats-note {
  margin-left: auto;
  font-size: var(--graiph-font-xs);
  color: var(--graiph-text-muted);
}

/* ── Pagination ──────────────────────────────────── */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 14px 20px;
  border-top: 1px solid var(--graiph-border);
}
.page-info {
  font-size: var(--graiph-font-sm);
  color: var(--graiph-text-secondary);
}

/* ── States: loading / error / empty ─────────────── */
.loading-block {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 48px 16px;
  color: var(--graiph-text-muted);
}
.error-block {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 20px;
  background: var(--graiph-bg-surface);
  border: 1px solid var(--graiph-alert-error);
  border-radius: var(--graiph-radius-lg);
}
.error-block svg[data-lucide] {
  width: 20px;
  height: 20px;
  color: var(--graiph-alert-error);
  margin-top: 2px;
}
.error-title {
  font-weight: 700;
}
.error-detail {
  font-size: var(--graiph-font-sm);
  color: var(--graiph-text-secondary);
  margin-top: 4px;
}
.empty-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 56px 16px;
  text-align: center;
  background: var(--graiph-bg-surface);
  border: 1px solid var(--graiph-border);
  border-radius: var(--graiph-radius-lg);
}
.empty-block svg[data-lucide] {
  width: 32px;
  height: 32px;
  color: var(--graiph-text-muted);
}
.empty-title {
  font-weight: 700;
}
.empty-hint {
  font-size: var(--graiph-font-sm);
  color: var(--graiph-text-muted);
  max-width: 440px;
}

/* ── Detail side panel ───────────────────────────── */
.detail-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  z-index: 40;
}
.detail-panel {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(480px, 92vw);
  background: var(--graiph-bg-secondary);
  border-left: 1px solid var(--graiph-border);
  z-index: 41;
  display: flex;
  flex-direction: column;
}
.detail-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--graiph-border);
}
.detail-header h3 {
  font-size: var(--graiph-font-lg);
  font-weight: 700;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}
.modal-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: none;
  border: 1px solid var(--graiph-border);
  border-radius: var(--graiph-radius-md);
  color: var(--graiph-text-secondary);
  cursor: pointer;
}
.modal-close:hover {
  color: var(--graiph-text-primary);
  border-color: var(--graiph-border-hover);
}
.detail-body {
  overflow-y: auto;
  padding: 20px;
}
.detail-section + .detail-section {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--graiph-border);
}
.detail-section h4 {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: var(--graiph-font-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--graiph-text-secondary);
  margin-bottom: 10px;
}
.detail-section h4 svg[data-lucide] {
  width: 14px;
  height: 14px;
  color: var(--graiph-accent-text);
}
.detail-kv {
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.kv-row {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: var(--graiph-font-sm);
}
.kv-key {
  flex: 0 0 110px;
  color: var(--graiph-text-muted);
  font-size: var(--graiph-font-xs);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.kv-row > span:not(.kv-key) {
  word-break: break-all;
}
.uri-value {
  flex: 1;
}
.copy-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background: none;
  border: 1px solid var(--graiph-border);
  border-radius: var(--graiph-radius-sm);
  color: var(--graiph-text-secondary);
  cursor: pointer;
  flex-shrink: 0;
}
.copy-btn:hover {
  border-color: var(--graiph-border-hover);
  color: var(--graiph-text-primary);
}
.copy-btn.copied {
  color: var(--graiph-accent-text);
  border-color: var(--graiph-accent);
}
.copy-btn svg[data-lucide] {
  width: 13px;
  height: 13px;
}
.class-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.class-chip {
  padding: 3px 10px;
  border-radius: 999px;
  font-size: var(--graiph-font-xs);
  font-weight: 600;
  background: var(--graiph-bg-elevated);
  border: 1px solid var(--graiph-border);
  color: var(--graiph-text-secondary);
}
.detail-metrics {
  border: 1px solid var(--graiph-border);
  border-radius: var(--graiph-radius-md);
  overflow: hidden;
}
.detail-note {
  font-size: var(--graiph-font-xs);
  color: var(--graiph-text-muted);
  margin-top: 8px;
}

/* =========================================================================
   PHONE TIER (≤640px) — clean header collapse.
   This is a light 2-zone header (title + admin email + Sign Out), so it gets a
   tidy collapse rather than a drawer: drop the subtitle, trim padding, truncate
   the email, and reduce Sign Out to its icon. Keeps both zones on one row.
   ========================================================================= */
@media (max-width: 640px) {
  .app-header { padding: 12px 16px; gap: 10px; }
  .header-left { min-width: 0; gap: 8px; }
  .header-left h1 {
    font-size: 18px;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .header-left .subtitle { display: none; }
  .header-right { gap: 8px; flex-shrink: 0; }
  .user-info {
    max-width: 38vw;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  #logoutBtn span { display: none; } /* icon-only Sign Out */
}