/* ==========================================================================
   app-to.date  --  Update Intelligence Dashboard
   Dark theme, card-based layout, severity & kind color coding
   ========================================================================== */

/* --- CSS Variables --- */
:root {
  --bg-primary: #0d1117;
  --bg-secondary: #161b22;
  --bg-tertiary: #21262d;
  --bg-hover: #292e36;

  --border-primary: #30363d;
  --border-secondary: #21262d;

  --text-primary: #e6edf3;
  --text-secondary: #8b949e;
  --text-muted: #6e7681;
  --text-link: #58a6ff;

  --accent: #58a6ff;
  --accent-hover: #79c0ff;

  /* Severity colors */
  --severity-critical: #f85149;
  --severity-critical-bg: rgba(248, 81, 73, 0.15);
  --severity-high: #db6d28;
  --severity-high-bg: rgba(219, 109, 40, 0.15);
  --severity-medium: #d29922;
  --severity-medium-bg: rgba(210, 153, 34, 0.15);
  --severity-low: #58a6ff;
  --severity-low-bg: rgba(88, 166, 255, 0.15);
  --severity-unknown: #6e7681;
  --severity-unknown-bg: rgba(110, 118, 129, 0.15);

  /* Update kind colors */
  --kind-cve-fix: #f85149;
  --kind-cve-fix-bg: rgba(248, 81, 73, 0.15);
  --kind-bug-fix: #58a6ff;
  --kind-bug-fix-bg: rgba(88, 166, 255, 0.15);
  --kind-version-bump: #3fb950;
  --kind-version-bump-bg: rgba(63, 185, 80, 0.15);
  --kind-feature: #a371f7;
  --kind-feature-bg: rgba(163, 113, 247, 0.15);
  --kind-config-change: #d29922;
  --kind-config-change-bg: rgba(210, 153, 34, 0.15);
  --kind-other: #6e7681;
  --kind-other-bg: rgba(110, 118, 129, 0.15);

  /* Health */
  --health-ok: #3fb950;
  --health-error: #f85149;

  --radius: 6px;
  --radius-lg: 8px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
  --transition: 150ms ease;
}

/* --- Reset & Base --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 14px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--text-link);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* --- Top Bar --- */
.top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-primary);
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.brand-name {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.brand-tagline {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 400;
}

.health-indicator {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.health-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-muted);
  transition: background var(--transition);
}

.health-dot.ok {
  background: var(--health-ok);
  box-shadow: 0 0 6px var(--health-ok);
}

.health-dot.error {
  background: var(--health-error);
  box-shadow: 0 0 6px var(--health-error);
}

/* --- Navigation --- */
.main-nav {
  display: flex;
  gap: 0;
  padding: 0 24px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-primary);
}

.nav-tab {
  padding: 10px 16px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-bottom: 2px solid transparent;
  transition: color var(--transition), border-color var(--transition);
  text-decoration: none;
}

.nav-tab:hover {
  color: var(--text-primary);
  text-decoration: none;
}

.nav-tab.active {
  color: var(--text-primary);
  border-bottom-color: var(--accent);
}

/* --- Content Area --- */
.content {
  flex: 1;
  padding: 24px;
  max-width: 1280px;
  width: 100%;
  margin: 0 auto;
}

/* --- Footer --- */
.bottom-bar {
  padding: 12px 24px;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-primary);
  background: var(--bg-secondary);
}

/* --- Cards --- */
.card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.card-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.card-subtitle {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* --- Stats Grid --- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.1;
}

.stat-label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-card.highlight-cve .stat-value {
  color: var(--severity-critical);
}

/* --- Ecosystem Breakdown --- */
.eco-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.eco-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
}

.eco-card:hover {
  border-color: var(--accent);
  background: var(--bg-hover);
}

.eco-card-name {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.eco-card-stats {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.eco-stat {
  display: flex;
  flex-direction: column;
}

.eco-stat-value {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
}

.eco-stat-label {
  font-size: 0.7rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* --- Tables --- */
.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

thead th {
  text-align: left;
  padding: 10px 12px;
  font-weight: 600;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-primary);
  white-space: nowrap;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

tbody tr {
  border-bottom: 1px solid var(--border-secondary);
  transition: background var(--transition);
}

tbody tr:hover {
  background: var(--bg-hover);
}

tbody tr.clickable {
  cursor: pointer;
}

tbody td {
  padding: 10px 12px;
  color: var(--text-primary);
  vertical-align: top;
}

td.muted {
  color: var(--text-secondary);
}

td.mono {
  font-family: "SF Mono", "Fira Code", "Fira Mono", Menlo, Consolas, monospace;
  font-size: 0.8rem;
}

.table-empty {
  padding: 32px;
  text-align: center;
  color: var(--text-muted);
}

/* --- Badges --- */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
  white-space: nowrap;
  line-height: 1.4;
}

/* Severity badges */
.badge-critical {
  color: var(--severity-critical);
  background: var(--severity-critical-bg);
}

.badge-high {
  color: var(--severity-high);
  background: var(--severity-high-bg);
}

.badge-medium {
  color: var(--severity-medium);
  background: var(--severity-medium-bg);
}

.badge-low {
  color: var(--severity-low);
  background: var(--severity-low-bg);
}

.badge-unknown {
  color: var(--severity-unknown);
  background: var(--severity-unknown-bg);
}

/* Update kind badges */
.badge-cve_fix {
  color: var(--kind-cve-fix);
  background: var(--kind-cve-fix-bg);
}

.badge-bug_fix {
  color: var(--kind-bug-fix);
  background: var(--kind-bug-fix-bg);
}

.badge-version_bump {
  color: var(--kind-version-bump);
  background: var(--kind-version-bump-bg);
}

.badge-feature {
  color: var(--kind-feature);
  background: var(--kind-feature-bg);
}

.badge-config_change {
  color: var(--kind-config-change);
  background: var(--kind-config-change-bg);
}

.badge-other {
  color: var(--kind-other);
  background: var(--kind-other-bg);
}

/* --- Detail View --- */
.detail-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}

.detail-back {
  font-size: 0.85rem;
  color: var(--text-link);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.detail-back:hover {
  text-decoration: underline;
}

.detail-title {
  font-size: 1.3rem;
  font-weight: 700;
}

.detail-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
  margin-bottom: 24px;
}

.meta-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.meta-label {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 600;
}

.meta-value {
  font-size: 0.9rem;
  color: var(--text-primary);
}

.cve-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.cve-tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.8rem;
  font-family: "SF Mono", "Fira Code", Menlo, Consolas, monospace;
  color: var(--severity-critical);
  background: var(--severity-critical-bg);
}

.cve-link {
  color: var(--severity-critical);
  text-decoration: none;
}
.cve-link:hover {
  text-decoration: underline;
}

.commit-body-text {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-family: "SF Mono", "Fira Code", Menlo, Consolas, monospace;
  font-size: 0.8rem;
  color: var(--text-secondary);
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 300px;
  overflow-y: auto;
}

.file-change-type {
  display: inline-block;
  width: 18px;
  text-align: center;
  font-weight: 700;
  font-family: "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.75rem;
}

.file-change-type.A { color: var(--kind-version-bump); }
.file-change-type.M { color: var(--kind-config-change); }
.file-change-type.D { color: var(--severity-critical); }
.file-change-type.R { color: var(--kind-feature); }

.file-stats {
  font-family: "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.file-stats .additions { color: var(--kind-version-bump); }
.file-stats .deletions { color: var(--severity-critical); }

/* --- Filters & Controls --- */
.controls-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.control-group {
  display: flex;
  align-items: center;
  gap: 6px;
}

.control-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 500;
}

select,
input[type="text"] {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius);
  color: var(--text-primary);
  padding: 6px 10px;
  font-size: 0.85rem;
  font-family: inherit;
  outline: none;
  transition: border-color var(--transition);
}

select:focus,
input[type="text"]:focus {
  border-color: var(--accent);
}

select {
  cursor: pointer;
}

button {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  padding: 6px 14px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  transition: background var(--transition);
}

button:hover {
  background: var(--accent-hover);
}

button.secondary {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border: 1px solid var(--border-primary);
}

button.secondary:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

/* --- Pagination --- */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border-secondary);
}

.pagination-info {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* --- Loading & Error States --- */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.loading::before {
  content: "";
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-primary);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  margin-right: 10px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.error-message {
  background: var(--severity-critical-bg);
  border: 1px solid rgba(248, 81, 73, 0.3);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  color: var(--severity-critical);
  font-size: 0.9rem;
}

.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-muted);
}

.empty-state-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-secondary);
}

.empty-state-body {
  font-size: 0.85rem;
}

/* --- Quick Filter --- */
.quick-filter {
  position: relative;
  margin-bottom: 12px;
}
.quick-filter input {
  width: 100%;
  padding: 8px 12px 8px 32px;
  font-size: 0.9rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-secondary);
  color: var(--text-primary);
  box-sizing: border-box;
}
.quick-filter input:focus {
  outline: none;
  border-color: var(--text-link);
  box-shadow: 0 0 0 2px rgba(56,132,244,0.15);
}
.quick-filter::before {
  content: '\1F50D';
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.8rem;
  opacity: 0.5;
  pointer-events: none;
}
.filter-count {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* --- Search --- */
.search-box {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
}

.search-box input {
  flex: 1;
  padding: 10px 14px;
  font-size: 1rem;
}

.search-box button {
  padding: 10px 20px;
}

/* --- Point Releases --- */
.release-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.release-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius);
  font-size: 0.85rem;
  transition: background var(--transition);
}

.release-item:hover {
  background: var(--bg-hover);
}

.release-version {
  font-weight: 600;
  font-family: "SF Mono", Menlo, Consolas, monospace;
}

.release-tag {
  color: var(--text-secondary);
  font-family: "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.8rem;
}

.release-commits {
  color: var(--text-muted);
  font-size: 0.8rem;
}

/* --- Section spacing --- */
.section {
  margin-bottom: 24px;
}

.section-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-primary);
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .top-bar {
    padding: 10px 16px;
  }

  .main-nav {
    padding: 0 16px;
    overflow-x: auto;
  }

  .content {
    padding: 16px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .eco-grid {
    grid-template-columns: 1fr;
  }

  .detail-meta {
    grid-template-columns: 1fr;
  }

  .brand-tagline {
    display: none;
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .controls-bar {
    flex-direction: column;
    align-items: stretch;
  }
}

/* --- Breadcrumb --- */

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0;
  padding: 12px 0;
  font-size: 0.9rem;
}

.breadcrumb a {
  color: var(--text-link);
  text-decoration: none;
}

.breadcrumb a:hover {
  text-decoration: underline;
}

.bc-sep {
  margin: 0 8px;
  color: var(--text-muted);
}

.bc-current {
  color: var(--text-primary);
  font-weight: 600;
}

/* Upstream link card on version_bump detail page */
.upstream-link-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  border: 1px solid var(--accent);
  border-radius: 8px;
  background: color-mix(in srgb, var(--accent) 8%, var(--bg-primary));
  text-decoration: none;
  color: var(--text-primary);
  transition: background 0.15s, border-color 0.15s;
}
.upstream-link-card:hover {
  background: color-mix(in srgb, var(--accent) 16%, var(--bg-primary));
  border-color: color-mix(in srgb, var(--accent) 80%, var(--text-primary));
}
.upstream-link-label {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--accent);
  white-space: nowrap;
}
.upstream-link-versions {
  flex: 1;
  font-family: var(--font-mono);
  font-size: 0.92rem;
}
.upstream-link-arrow {
  font-size: 1.2rem;
  color: var(--accent);
}

/* Small upstream icon in update tables */
.upstream-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  font-size: 0.85rem;
  color: var(--accent);
  text-decoration: none;
  border-radius: 4px;
  transition: background 0.12s;
}
.upstream-icon:hover {
  background: color-mix(in srgb, var(--accent) 18%, transparent);
}

/* --- Audit Form --- */
.form-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 4px;
}

.form-input {
  width: 100%;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius);
  color: var(--text-primary);
  padding: 8px 12px;
  font-size: 0.85rem;
  font-family: inherit;
  outline: none;
  transition: border-color var(--transition);
}

textarea.form-input {
  font-family: "SF Mono", "Fira Code", Menlo, Consolas, monospace;
  font-size: 0.8rem;
  resize: vertical;
}

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

.btn-primary {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  padding: 10px 24px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition);
}

.btn-primary:hover { background: var(--accent-hover); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }