/* Impersonation — extends styles.css (homepage / Delllusion tokens) */

.impersonation-page {
  background: var(--bg-secondary, #f8fafc);
  color: var(--text-primary, #0a1929);
  min-height: 100vh;
  font-family: 'Inter', system-ui, sans-serif;
}

.impersonation-page .navbar.scrolled {
  background: var(--glass-bg, rgba(255, 255, 255, 0.95));
  backdrop-filter: blur(12px);
}

.impersonation-page .navbar .nav-link {
  color: var(--text-primary, #0a1929);
}

.impersonation-page .navbar .logo-text {
  color: var(--primary-color, #0a1929);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.imp-access-gate {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(10, 25, 41, 0.92);
  backdrop-filter: blur(8px);
}

.imp-access-gate[hidden] {
  display: none !important;
}

.imp-access-card {
  width: min(420px, 100%);
  padding: 28px 24px;
}

.imp-access-card .imp-eyebrow {
  color: var(--teal-light, #2dd4bf);
}

.imp-access-card h2 {
  margin: 0 0 8px;
  font-size: 1.5rem;
}

.imp-access-error {
  color: #b91c1c;
  font-size: 0.9rem;
  margin: 0 0 8px;
}

.imp-app-shell[hidden] {
  display: none !important;
}

.imp-public-landing[hidden] {
  display: none !important;
}

/* Public marketing */
.imp-public-nav {
  position: sticky;
  top: 0;
  z-index: 100;
}

.imp-marketing-hero {
  background: var(--gradient-hero, linear-gradient(135deg, #0a1929 0%, #1e3a5f 40%, #0066cc 100%));
  color: #fff;
  padding: 48px 0 56px;
}

.imp-marketing-hero-grid {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 32px;
  align-items: center;
  max-width: 1200px;
}

.imp-marketing-copy .imp-title {
  font-size: clamp(2.2rem, 5vw, 3rem);
}

.imp-marketing-lead {
  font-size: 1.05rem;
  line-height: 1.65;
  opacity: 0.95;
  max-width: 52ch;
}

.imp-marketing-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.imp-marketing-visual {
  margin: 0;
}

.imp-hero-art {
  width: 100%;
  height: auto;
  border-radius: 16px;
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.imp-visual-caption {
  margin-top: 10px;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.72);
  text-align: center;
}

.imp-how-section {
  padding: 56px 0;
  background: var(--bg-secondary, #f8fafc);
}

.imp-how-head {
  max-width: 720px;
  margin-bottom: 28px;
}

.imp-how-head h2 {
  margin: 0 0 10px;
  font-size: 1.75rem;
}

.imp-pipeline-visual {
  padding: 16px;
  margin-bottom: 28px;
}

.imp-pipeline-art {
  width: 100%;
  height: auto;
  border-radius: 12px;
  display: block;
}

.imp-feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.imp-feature-card {
  padding: 22px;
}

.imp-feature-card h3 {
  margin: 0 0 10px;
  font-size: 1.05rem;
  color: var(--secondary-color, #0066cc);
}

.imp-feature-card p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--text-secondary, #475569);
}

.imp-contact-section {
  padding: 56px 0 72px;
}

.imp-contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 32px;
  padding: 32px;
  align-items: start;
}

.imp-contact-grid h2 {
  margin: 0 0 12px;
}

.imp-contact-list {
  margin: 20px 0 0;
  padding-left: 20px;
  line-height: 1.7;
  color: var(--text-secondary, #475569);
}

.imp-contact-action {
  text-align: center;
  padding: 24px;
  border-radius: 12px;
  background: rgba(124, 58, 237, 0.06);
  border: 1px solid rgba(124, 58, 237, 0.15);
}

.imp-contact-email-label {
  font-weight: 600;
  margin: 0 0 12px;
}

.imp-contact-action .imp-hint {
  margin: 14px 0 16px;
}

.imp-workspace-title {
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  font-weight: 800;
  margin: 0 0 12px;
}

.imp-workspace-visual {
  margin: 0;
  grid-column: 1 / -1;
  display: none;
}

.imp-hero-art--compact {
  max-height: 180px;
  width: auto;
  object-fit: cover;
  object-position: center;
}

.imp-access-cancel {
  margin-top: 10px;
}

.imp-access-gate:not([hidden]) {
  display: flex;
}

/* Hero */
.imp-hero {
  background: var(--gradient-hero, linear-gradient(135deg, #0a1929 0%, #1e3a5f 40%, #0066cc 100%));
  color: #fff;
  padding: 88px 0 40px;
}

.imp-hero-grid {
  display: grid;
  grid-template-columns: 1fr minmax(260px, 320px);
  gap: 28px 32px;
  align-items: start;
  max-width: 1200px;
}

.imp-eyebrow {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal-light, #2dd4bf);
  margin-bottom: 8px;
}

.imp-title {
  font-size: clamp(2rem, 5vw, 2.75rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 12px;
}

.imp-subtitle {
  font-size: 1.05rem;
  line-height: 1.6;
  opacity: 0.92;
  max-width: 560px;
}

.imp-subtitle em {
  font-style: normal;
  color: var(--teal-light, #2dd4bf);
}

.imp-status {
  display: inline-block;
  margin-top: 16px;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 0.85rem;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.imp-status--ok {
  background: rgba(20, 184, 166, 0.25);
  border-color: rgba(20, 184, 166, 0.5);
}

.imp-status--warn {
  background: rgba(251, 191, 36, 0.2);
  border-color: rgba(251, 191, 36, 0.45);
}

.imp-hero-aside {
  background: var(--bg-card, rgba(255, 255, 255, 0.95));
  color: var(--text-primary);
  border-radius: 16px;
  padding: 22px;
  box-shadow: var(--shadow-lg);
}

.imp-aside-heading {
  font-size: 1.1rem;
  margin-bottom: 14px;
  color: var(--primary-color);
}

.imp-stats {
  display: grid;
  gap: 10px;
  margin-bottom: 16px;
}

.imp-stats div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.9rem;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-light);
}

.imp-stats dt {
  color: var(--text-secondary);
  font-weight: 500;
}

.imp-stats dd {
  font-weight: 600;
  text-align: right;
}

/* Main */
.imp-main {
  max-width: 960px;
  padding: 32px 20px 64px;
}

.imp-banner {
  padding: 12px 16px;
  border-radius: 10px;
  margin-bottom: 20px;
  font-size: 0.9rem;
  background: #fef3c7;
  border: 1px solid #fcd34d;
  color: #92400e;
}

.imp-banner--ok {
  background: #ecfdf5;
  border-color: #6ee7b7;
  color: #065f46;
}

/* Stepper */
.imp-stepper {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0 0 28px;
  padding: 0;
}

.imp-step {
  flex: 1 1 auto;
  min-width: 100px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-radius: 10px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-light);
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  transition: all 0.2s ease;
}

.imp-step span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--bg-secondary);
  font-size: 0.72rem;
}

.imp-step--active {
  color: var(--primary-color);
  border-color: var(--secondary-color);
  box-shadow: var(--shadow-sm);
}

.imp-step--active span {
  background: var(--gradient-2);
  color: #fff;
}

.imp-step--done {
  color: var(--teal-accent);
  border-color: var(--border-teal);
}

.imp-step--done span {
  background: var(--teal-accent);
  color: #fff;
}

/* Panels */
.imp-panel {
  background: var(--bg-primary);
  border-radius: 16px;
  padding: 28px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-light);
}

.imp-panel-head {
  margin-bottom: 24px;
}

.imp-panel-head h2 {
  font-size: 1.45rem;
  color: var(--primary-color);
  margin-bottom: 8px;
}

.imp-panel-head p {
  color: var(--text-secondary);
  line-height: 1.55;
}

/* Form */
.imp-form {
  max-width: 480px;
}

.imp-label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-primary);
}

.imp-input,
.imp-textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border-medium);
  border-radius: 10px;
  font-family: inherit;
  font-size: 1rem;
  margin-bottom: 16px;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.imp-input:focus,
.imp-textarea:focus {
  outline: none;
  border-color: var(--secondary-color);
  box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.15);
}

.imp-hint {
  font-size: 0.85rem;
  color: var(--text-light);
  line-height: 1.5;
  margin-bottom: 12px;
}

.imp-actions {
  margin-top: 24px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.imp-actions--split {
  justify-content: space-between;
}

.imp-actions--wrap {
  flex-wrap: wrap;
}

/* Buttons — align with site .btn */
.imp-btn-primary {
  background: var(--gradient-2) !important;
  border: none !important;
  color: #fff !important;
  font-weight: 600;
  padding: 12px 22px !important;
  border-radius: 10px !important;
}

.imp-btn-primary:hover:not(:disabled) {
  filter: brightness(1.05);
  transform: translateY(-1px);
}

.imp-btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.imp-btn-outline {
  border: 1px solid var(--border-medium) !important;
  background: transparent !important;
  color: var(--primary-color) !important;
  font-weight: 600;
  padding: 12px 18px !important;
  border-radius: 10px !important;
}

.imp-btn-block {
  width: 100%;
}

.imp-btn-lg {
  padding: 14px 28px !important;
  font-size: 1.05rem !important;
}

.card-style {
  background: var(--bg-secondary);
  border-radius: 14px;
  padding: 20px;
  border: 1px solid var(--border-light);
}

/* Categories */
.imp-category-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.imp-cat-tab {
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--border-light);
  background: var(--bg-secondary);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--text-secondary);
  transition: all 0.15s;
}

.imp-cat-tab:hover {
  border-color: var(--secondary-color);
  color: var(--primary-color);
}

.imp-cat-tab--active {
  background: var(--primary-color);
  color: #fff;
  border-color: var(--primary-color);
}

.imp-cat-tab--done {
  border-color: var(--teal-accent);
  color: var(--teal-accent);
}

.imp-category-card {
  display: none;
  animation: imp-fade 0.25s ease;
}

.imp-category-card--active {
  display: block;
}

@keyframes imp-fade {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.imp-cat-header {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 8px;
}

.imp-cat-header h3 {
  font-size: 1.15rem;
  color: var(--primary-color);
}

.imp-cat-anchor {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(0, 102, 204, 0.12), rgba(20, 184, 166, 0.12));
  font-weight: 700;
  color: var(--secondary-color);
}

.imp-tag-field {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  min-height: 52px;
  padding: 10px 12px;
  border: 1px solid var(--border-medium);
  border-radius: 12px;
  background: #fff;
  margin-bottom: 12px;
}

.imp-tag-field:focus-within {
  border-color: var(--secondary-color);
  box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.12);
}

.imp-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--primary-color);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 500;
}

.imp-tag-remove {
  border: none;
  background: rgba(255, 255, 255, 0.25);
  color: #fff;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 0.9rem;
  line-height: 1;
  padding: 0;
}

.imp-tag-input {
  flex: 1 1 120px;
  min-width: 100px;
  border: none;
  outline: none;
  font-family: inherit;
  font-size: 0.95rem;
  padding: 6px 4px;
}

.imp-cat-footer {
  display: flex;
  justify-content: space-between;
  margin-top: 16px;
}

/* Review / train */
.imp-review-grid {
  display: grid;
  gap: 12px;
  margin-bottom: 20px;
}

.imp-review-row {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 12px;
  padding: 12px;
  border-radius: 10px;
  background: var(--bg-secondary);
  font-size: 0.9rem;
}

.imp-review-row strong {
  color: var(--secondary-color);
}

.imp-train-box h3,
.imp-publish-box h3 {
  font-size: 1rem;
  margin-bottom: 8px;
  color: var(--primary-color);
}

.imp-progress {
  margin-top: 16px;
}

.imp-progress-bar {
  height: 8px;
  background: var(--border-light);
  border-radius: 999px;
  overflow: hidden;
}

.imp-progress-fill {
  height: 100%;
  width: 0%;
  background: var(--gradient-2);
  border-radius: 999px;
  transition: width 0.3s ease;
}

.imp-metrics {
  margin-top: 12px;
  padding: 12px;
  background: var(--primary-dark);
  color: #e2e8f0;
  border-radius: 8px;
  font-size: 0.8rem;
  overflow-x: auto;
}

.imp-round-badge {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(0, 102, 204, 0.1);
  color: var(--secondary-color);
  font-weight: 600;
  font-size: 0.85rem;
  margin-bottom: 16px;
}

.imp-validate-item {
  padding: 16px;
  border: 1px solid var(--border-light);
  border-radius: 12px;
  margin-bottom: 12px;
}

.imp-validate-item h4 {
  font-size: 0.95rem;
  margin-bottom: 8px;
}

.imp-neighbor-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.imp-neighbor-chip {
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  font-size: 0.82rem;
}

.imp-checklist {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
}

.imp-checklist li {
  padding: 8px 0 8px 28px;
  position: relative;
  font-size: 0.95rem;
}

.imp-checklist li::before {
  content: '○';
  position: absolute;
  left: 0;
  color: var(--text-muted);
}

.imp-checklist li.imp-check--ok::before {
  content: '✓';
  color: var(--teal-accent);
  font-weight: 700;
}

/* Chat */
.imp-chat-layout {
  display: flex;
  flex-direction: column;
  min-height: 360px;
}

.imp-chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  max-height: 420px;
  margin-bottom: 12px;
}

.imp-chat-msg {
  margin-bottom: 14px;
  max-width: 85%;
}

.imp-chat-msg--user {
  margin-left: auto;
  text-align: right;
}

.imp-chat-bubble {
  display: inline-block;
  padding: 10px 14px;
  border-radius: 14px;
  font-size: 0.92rem;
  line-height: 1.5;
  text-align: left;
}

.imp-chat-msg--user .imp-chat-bubble {
  background: var(--primary-color);
  color: #fff;
  border-bottom-right-radius: 4px;
}

.imp-chat-msg--bot .imp-chat-bubble {
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-bottom-left-radius: 4px;
}

.imp-chat-form {
  display: flex;
  gap: 10px;
  padding-top: 12px;
  border-top: 1px solid var(--border-light);
}

.imp-chat-form .imp-input {
  margin-bottom: 0;
  flex: 1;
}

.imp-footer {
  padding: 24px 0;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-light);
  border-top: 1px solid var(--border-light);
}

.imp-footer a {
  color: var(--secondary-color);
  text-decoration: none;
}

/* Profiles registry */
.imp-profiles-hub {
  margin-bottom: 28px;
  padding: 24px;
}

.imp-profiles-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}

.imp-profiles-head h2 {
  margin: 0 0 6px;
  font-size: 1.25rem;
}

.imp-profiles-table-wrap {
  overflow-x: auto;
}

.imp-profiles-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.imp-profiles-table th,
.imp-profiles-table td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border-light, #e2e8f0);
  vertical-align: middle;
}

.imp-profiles-table th {
  font-weight: 600;
  color: var(--text-secondary, #475569);
  background: rgba(124, 58, 237, 0.04);
}

.imp-profiles-actions {
  white-space: nowrap;
}

.imp-btn-sm {
  padding: 6px 12px;
  font-size: 0.8rem;
}

.imp-status-pill {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  background: #e2e8f0;
  color: #334155;
}

.imp-status-pill--published {
  background: #dcfce7;
  color: #166534;
}

.imp-status-pill--trained {
  background: #dbeafe;
  color: #1e40af;
}

.imp-status-pill--inferring {
  background: #fef3c7;
  color: #92400e;
}

.imp-status-pill--draft {
  background: #f1f5f9;
  color: #64748b;
}

.imp-chat-profile-banner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  padding: 12px 16px;
  margin-bottom: 16px;
  border-radius: 10px;
  background: rgba(124, 58, 237, 0.08);
  border: 1px solid rgba(124, 58, 237, 0.2);
  font-size: 0.9rem;
}

.imp-chat-profile-banner[hidden] {
  display: none !important;
}

.imp-chat-profile-meta {
  color: var(--text-secondary, #64748b);
  font-size: 0.85rem;
}

@media (max-width: 768px) {
  .imp-marketing-hero-grid,
  .imp-contact-grid,
  .imp-feature-grid {
    grid-template-columns: 1fr;
  }

  .imp-marketing-cta {
    flex-direction: column;
  }

  .imp-marketing-cta .btn {
    width: 100%;
  }

  .imp-hero-grid {
    grid-template-columns: 1fr;
  }

  .imp-stepper {
    flex-direction: column;
  }

  .imp-step {
    min-width: 0;
  }

  .imp-review-row {
    grid-template-columns: 1fr;
  }

  .imp-actions--split {
    flex-direction: column;
  }

  .imp-cat-footer {
    flex-direction: column;
    gap: 10px;
  }
}