:root {
  --bg: #f0f2f5;
  --panel: #ffffff;
  --panel-alt: #f8f9fb;
  --border: #e2e6ed;
  --text: #1a1d26;
  --muted: #6b7280;
  --accent: #3b6fd9;
  --accent-phi: #0d9488;
  --good: #16a34a;
  --bad: #dc2626;
  --warn: #d97706;
  --radius: 12px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

header {
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  padding: 16px 24px;
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand h1 {
  margin: 0;
  font-size: 22px;
  font-weight: 700;
}

.brand .subtitle {
  margin: 4px 0 0;
  font-size: 14px;
  color: var(--muted);
}

.badge-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.badge {
  font-size: 12px;
  padding: 6px 12px;
  border-radius: 999px;
  font-weight: 600;
}

.badge-loading { background: #e8eaef; color: var(--muted); }
.badge-ok { background: rgba(22, 163, 74, 0.12); color: var(--good); }
.badge-warn { background: rgba(217, 119, 6, 0.12); color: var(--warn); }
.badge-error { background: rgba(220, 38, 38, 0.12); color: var(--bad); }

.view {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 0 32px 48px;
}

.view-active { display: block; }

/* Home */
.home-intro {
  text-align: center;
  padding: 40px 0 28px;
}

.home-intro h2 {
  margin: 0 0 8px;
  font-size: 22px;
}

.category-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.category-card {
  text-align: left;
  background: var(--panel);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  cursor: pointer;
  transition: border-color 0.15s, box-shadow 0.15s, transform 0.15s;
  font-family: inherit;
  color: inherit;
}

.category-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.category-card-pii:hover { border-color: var(--accent); }
.category-card-phi:hover { border-color: var(--accent-phi); }

.category-card h3 {
  margin: 12px 0 8px;
  font-size: 17px;
}

.category-card p {
  margin: 0;
  font-size: 14px;
  color: var(--muted);
  line-height: 1.5;
}

.category-card-features {
  margin: 16px 0 0;
  padding-left: 18px;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.7;
}

.category-card-cta {
  display: block;
  margin-top: 20px;
  font-size: 13px;
  font-weight: 700;
}

.category-card-pii .category-card-cta { color: var(--accent); }
.category-card-phi .category-card-cta { color: var(--accent-phi); }

.category-card-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.06em;
  padding: 4px 10px;
  border-radius: 6px;
}

.category-card-badge.pii {
  background: rgba(59, 111, 217, 0.12);
  color: #274b99;
}

.category-card-badge.phi {
  background: rgba(13, 148, 136, 0.14);
  color: #0f766e;
}

/* Workspace */
.workspace-bar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 0 12px;
}

.back-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 7px 14px;
  border-radius: 8px;
  font-size: 13px;
  cursor: pointer;
  font-weight: 500;
}

.back-btn:hover {
  background: var(--panel);
  color: var(--text);
}

.workspace-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 17px;
}

.sub-nav {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  padding-bottom: 0;
  border-bottom: 1px solid var(--border);
}

.sub-nav-btn {
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--muted);
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  margin-bottom: -1px;
  border-radius: 0;
}

.sub-nav-btn:hover { color: var(--text); }

.sub-nav-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

#view-workspace[data-category="phi"] .sub-nav-btn.active {
  color: var(--accent-phi);
  border-bottom-color: var(--accent-phi);
}

#view-workspace[data-category="phi"] button:not(.secondary-btn):not(.back-btn):not(.sub-nav-btn):not(.copy-btn) {
  background: var(--accent-phi);
}

#view-workspace[data-category="phi"] .copy-btn:hover {
  color: var(--accent-phi) !important;
}

.workspace-main {
  padding-top: 0;
}

.panel {
  display: none;
  background: var(--panel);
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 var(--radius) var(--radius);
  padding: 24px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.panel-active { display: block; }

.panel[data-panel="entities"] {
  padding: 20px 24px;
}

h2 {
  margin: 0 0 6px;
  font-size: 18px;
  font-weight: 700;
}

.panel[data-panel="entities"] h2 {
  font-size: 17px;
}

.hint {
  color: var(--muted);
  font-size: 13px;
  margin: 0 0 14px;
  line-height: 1.5;
}

.hint code {
  background: var(--panel-alt);
  padding: 2px 8px;
  border-radius: 4px;
  color: var(--accent);
  font-size: 14px;
}

textarea {
  width: 100%;
  min-height: 120px;
  background: var(--panel-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
  font-size: 14px;
  font-family: inherit;
  resize: vertical;
}

textarea:focus, select:focus, input:focus {
  outline: none;
  border-color: var(--accent);
}

.controls {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 14px;
  flex-wrap: wrap;
}

.preset-row { margin-bottom: 0; }

.slider-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--muted);
}

label {
  font-size: 13px;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

select {
  background: var(--panel-alt);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 13px;
}

button {
  background: var(--accent);
  color: white;
  border: none;
  padding: 9px 18px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}

button:hover { opacity: 0.92; }

button.secondary-btn {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}

.result { margin-top: 18px; }

.muted { color: var(--muted); }
.error { color: var(--bad); font-size: 13px; }

.summary {
  font-weight: 600;
  font-size: 14px;
  margin: 12px 0;
}

.summary.good { color: var(--good); }
.summary.bad { color: var(--bad); }

.highlighted-text, .masked-box {
  background: var(--panel-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  font-size: 14px;
  line-height: 2;
  white-space: pre-wrap;
  word-break: break-word;
}

/* Output container with copy toolbar */
.output-container {
  margin-top: 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--panel-alt);
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.02);
}

.output-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 14px;
  background: rgba(0, 0, 0, 0.025);
  border-bottom: 1px solid var(--border);
}

.output-title {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.output-container .masked-box,
.output-container .highlighted-text {
  border: none;
  border-radius: 0;
  background: transparent;
  padding: 14px;
  margin: 0;
}

.batch-item .output-container {
  margin-top: 0;
}

.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  font-size: 12px;
  font-weight: 600;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: #ffffff !important;
  color: var(--text) !important;
  cursor: pointer;
  line-height: 1;
  transition: all 0.15s ease-in-out;
}

.copy-btn:hover {
  background: #f8fafc !important;
  border-color: #cbd5e1;
  color: var(--accent) !important;
  transform: translateY(-1px);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.copy-btn:active {
  transform: translateY(0);
}

.copy-btn svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  flex-shrink: 0;
}

.copy-btn.copied {
  background: rgba(22, 163, 74, 0.1) !important;
  border-color: rgba(22, 163, 74, 0.4) !important;
  color: var(--good) !important;
}

.copy-btn.copied svg {
  stroke: var(--good);
}

mark {
  border-radius: 4px;
  padding: 1px 3px;
}

.entity-tag {
  font-size: 9px;
  font-weight: 700;
  color: #fff;
  border-radius: 3px;
  padding: 1px 4px;
  margin-left: 4px;
}

.entity-chip {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  border-radius: 999px;
  padding: 6px 12px;
  margin: 3px 6px 3px 0;
}

.entity-label-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 8px;
  margin-top: 4px;
}

.entity-label-card {
  background: var(--panel-alt);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 10px;
  border-left: 3px solid var(--accent);
}

#view-workspace[data-category="phi"] .entity-label-card {
  border-left-color: var(--accent-phi);
}

.entity-label-card .label-name {
  display: block;
  font-size: 12px;
  font-weight: 700;
  margin-bottom: 2px;
  line-height: 1.3;
}

.entity-label-card .label-type {
  display: block;
  font-size: 10px;
  font-family: ui-monospace, monospace;
  color: var(--muted);
  line-height: 1.2;
}

.entity-label-card .label-desc {
  display: block;
  font-size: 10px;
  color: var(--muted);
  line-height: 1.3;
  margin-top: 4px;
}

.entity-count-bar {
  margin-top: 12px;
  padding: 8px 12px;
  background: var(--panel-alt);
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
}

.entity-chip.phi-chip small {
  opacity: 0.85;
  font-weight: 500;
  margin-left: 4px;
}

.entity-code {
  font-size: 11px;
  color: var(--muted);
}

.category-pill {
  display: inline-block;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.04em;
  border-radius: 4px;
  padding: 3px 8px;
}

.category-pill.pii {
  background: rgba(59, 111, 217, 0.14);
  color: #274b99;
}

.category-pill.phi {
  background: rgba(13, 148, 136, 0.16);
  color: #0f766e;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 14px;
  font-size: 13px;
}

th, td {
  text-align: left;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
}

th {
  color: var(--muted);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.label {
  color: var(--muted);
  font-size: 13px;
  margin: 12px 0 6px;
}

.chip-select {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.chip-checkbox {
  background: var(--panel-alt);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 12px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.chip-checkbox input { margin: 0; }

.batch-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  margin-bottom: 10px;
  background: var(--panel-alt);
}

.batch-index {
  margin: 0 0 8px;
  font-size: 12px;
  font-weight: 700;
  color: var(--muted);
}

footer {
  text-align: center;
  color: var(--muted);
  font-size: 14px;
  padding: 28px 32px 36px;
  border-top: 1px solid var(--border);
  background: var(--panel);
  margin-top: auto;
}

#api-info {
  font-weight: 500;
}

@media (max-width: 720px) {
  .category-grid { grid-template-columns: 1fr; }
  .home-intro { padding: 24px 0 16px; }
  .header-inner { flex-direction: column; align-items: flex-start; }
}