/**
 * Nexus design skin — glass command-center aesthetic for admin, workbooks, dashboards.
 * Active when html[data-design-skin="nexus"]. Respects data-theme and accent tokens.
 */

html[data-design-skin="nexus"] {
  --nexus-glow: color-mix(in srgb, var(--accent, #64748b) 50%, transparent);
  --nexus-glass: color-mix(in srgb, var(--app-surface, var(--surface, #0f1724)) 68%, transparent);
  --nexus-glass-border: color-mix(in srgb, var(--accent, #64748b) 28%, var(--app-border, var(--border, #334155)));
  --nexus-shadow: 0 8px 32px rgba(2, 6, 23, 0.45);
}

/* Light: denser glass, stronger borders/shadows — avoid washed pastel look */
html[data-design-skin="nexus"][data-theme="light"] {
  --nexus-glow: color-mix(in srgb, var(--accent, #64748b) 38%, transparent);
  --nexus-glass: color-mix(in srgb, #ffffff 88%, color-mix(in srgb, var(--accent, #64748b) 12%, #e2e8f0));
  --nexus-glass-border: color-mix(in srgb, var(--accent, #64748b) 28%, #94a3b8);
  --nexus-shadow: 0 12px 36px rgba(15, 23, 42, 0.14), 0 2px 8px rgba(15, 23, 42, 0.06);
}

/* ---------- Ambient mesh background ---------- */
html[data-design-skin="nexus"] body {
  position: relative;
  background-color: #060a12;
  background-image:
    radial-gradient(ellipse 90% 55% at 12% -8%, color-mix(in srgb, var(--accent) 24%, transparent), transparent 58%),
    radial-gradient(ellipse 70% 45% at 88% 4%, color-mix(in srgb, var(--accent-2, var(--accent)) 20%, transparent), transparent 55%),
    radial-gradient(ellipse 50% 40% at 50% 100%, color-mix(in srgb, var(--accent) 12%, #0a1020), transparent 70%),
    linear-gradient(165deg, #060a12 0%, #0c1222 45%, #070b14 100%);
  min-height: 100vh;
}

html[data-design-skin="nexus"][data-theme="light"] body {
  background-color: #c8d2e6;
  background-image:
    radial-gradient(ellipse 90% 55% at 12% -8%, color-mix(in srgb, var(--accent) 28%, transparent), transparent 58%),
    radial-gradient(ellipse 70% 45% at 88% 4%, color-mix(in srgb, var(--accent-2, var(--accent)) 22%, transparent), transparent 55%),
    radial-gradient(ellipse 55% 42% at 50% 100%, color-mix(in srgb, var(--accent) 14%, #b8c4dc), transparent 70%),
    linear-gradient(165deg, #b9c5dc 0%, #d0d9ec 42%, #c2cde2 100%);
}

html[data-design-skin="nexus"] body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.35;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse 85% 75% at 50% 40%, black 20%, transparent 72%);
}

html[data-design-skin="nexus"][data-theme="light"] body::before {
  opacity: 0.45;
  background-image:
    linear-gradient(rgba(15, 23, 42, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 23, 42, 0.07) 1px, transparent 1px);
}

html[data-design-skin="nexus"] body::after {
  content: "";
  position: fixed;
  inset: -20%;
  z-index: 0;
  pointer-events: none;
  opacity: 0.55;
  background:
    radial-gradient(circle at 30% 20%, color-mix(in srgb, var(--accent) 14%, transparent) 0%, transparent 42%),
    radial-gradient(circle at 75% 65%, color-mix(in srgb, var(--accent-2, var(--accent)) 10%, transparent) 0%, transparent 38%);
  animation: nexus-mesh-drift 28s ease-in-out infinite alternate;
}

html[data-design-skin="nexus"][data-theme="light"] body::after {
  opacity: 0.7;
  background:
    radial-gradient(circle at 30% 20%, color-mix(in srgb, var(--accent) 22%, transparent) 0%, transparent 42%),
    radial-gradient(circle at 75% 65%, color-mix(in srgb, var(--accent-2, var(--accent)) 16%, transparent) 0%, transparent 38%);
}

@keyframes nexus-mesh-drift {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(-2%, 1.5%) scale(1.04); }
}

html[data-design-skin="nexus"] #container,
html[data-design-skin="nexus"] #content,
html[data-design-skin="nexus"] #content-main,
html[data-design-skin="nexus"] .main-container,
html[data-design-skin="nexus"] .content-wrapper {
  position: relative;
  z-index: 1;
  background: transparent !important;
}

/* ---------- Admin shell hero ---------- */
html[data-design-skin="nexus"] .crm-hero {
  backdrop-filter: blur(22px) saturate(1.45);
  -webkit-backdrop-filter: blur(22px) saturate(1.45);
  border-bottom: 1px solid var(--nexus-glass-border) !important;
  box-shadow:
    0 4px 28px color-mix(in srgb, var(--accent) 14%, transparent),
    inset 0 1px 0 rgba(255, 255, 255, 0.07);
}

/* Nexus dark: glass overlay on brand bar */
html[data-design-skin="nexus"][data-theme="dark"] .crm-hero {
  background:
    linear-gradient(92deg, color-mix(in srgb, var(--brand-1) 75%, transparent) 0%, color-mix(in srgb, var(--brand-2) 75%, transparent) 100%),
    radial-gradient(1100px 520px at 85% -10%, #1f2937, transparent 60%),
    radial-gradient(900px 460px at -10% 0%, #0c172e, transparent 60%),
    linear-gradient(92deg, var(--brand-1) 0%, var(--brand-2) 100%) !important;
  color: #ffffff !important;
  --hero-fg: #ffffff;
}

/* Nexus light: MUST keep dark brand bar — do not use transparent white glass */
html[data-design-skin="nexus"][data-theme="light"] .crm-hero {
  background:
    radial-gradient(1100px 520px at 85% -10%, color-mix(in srgb, var(--accent) 12%, #1f2937), transparent 60%),
    radial-gradient(900px 460px at -10% 0%, #0c172e, transparent 60%),
    linear-gradient(92deg, var(--brand-1, rgb(20, 43, 53)) 0%, var(--brand-2, #161d31) 100%) !important;
  color: #ffffff !important;
  --hero-fg: #ffffff;
}

html[data-design-skin="nexus"] .crm-hero .crm-hero-logo {
  box-shadow:
    0 0 22px var(--nexus-glow),
    inset 0 0 14px rgba(255, 255, 255, 0.08);
  border: 1px solid color-mix(in srgb, var(--accent) 45%, transparent) !important;
}

html[data-design-skin="nexus"] .btn-appearance,
html[data-design-skin="nexus"] .btn-ghost {
  backdrop-filter: blur(8px);
  transition: box-shadow 0.2s ease, background 0.2s ease;
}

html[data-design-skin="nexus"] .btn-appearance:hover,
html[data-design-skin="nexus"] .btn-ghost:hover {
  box-shadow: 0 0 16px var(--nexus-glow);
}

html[data-design-skin="nexus"] .theme-switch {
  box-shadow: inset 0 0 12px color-mix(in srgb, var(--accent) 20%, transparent);
}

/* ---------- Dashboard cards & heroes ---------- */
html[data-design-skin="nexus"] body.dashboard .card,
html[data-design-skin="nexus"] body.dashboard .card-link,
html[data-design-skin="nexus"] body.dashboard .dir-item.card {
  background: var(--nexus-glass) !important;
  backdrop-filter: blur(14px) saturate(1.25);
  -webkit-backdrop-filter: blur(14px) saturate(1.25);
  border: 1px solid var(--nexus-glass-border) !important;
  box-shadow: var(--nexus-shadow), inset 0 1px 0 rgba(255, 255, 255, 0.05);
  transition: box-shadow 0.22s ease, border-color 0.22s ease, transform 0.22s ease;
}

html[data-design-skin="nexus"][data-theme="light"] body.dashboard .card,
html[data-design-skin="nexus"][data-theme="light"] body.dashboard .card-link,
html[data-design-skin="nexus"][data-theme="light"] body.dashboard .dir-item.card {
  box-shadow: var(--nexus-shadow), inset 0 1px 0 rgba(255, 255, 255, 0.85);
  border-color: var(--nexus-glass-border) !important;
}

html[data-design-skin="nexus"] body.dashboard .card:hover,
html[data-design-skin="nexus"] body.dashboard .card-link:hover,
html[data-design-skin="nexus"] body.dashboard .dir-item.card:hover {
  border-color: color-mix(in srgb, var(--accent) 45%, var(--border)) !important;
  box-shadow:
    var(--nexus-shadow),
    0 0 28px color-mix(in srgb, var(--accent) 18%, transparent),
    inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

html[data-design-skin="nexus"] .dashboard-hero {
  background: color-mix(in srgb, var(--nexus-glass) 75%, transparent) !important;
  backdrop-filter: blur(18px) saturate(1.35);
  border: 1px solid var(--nexus-glass-border) !important;
  box-shadow:
    var(--nexus-shadow),
    0 0 40px color-mix(in srgb, var(--accent) 15%, transparent);
  overflow: hidden;
}

html[data-design-skin="nexus"] .dashboard-hero-analytics,
html[data-design-skin="nexus"] .dashboard-hero-medical {
  background:
    linear-gradient(
      135deg,
      color-mix(in srgb, var(--accent) 35%, #1a1040 65%) 0%,
      color-mix(in srgb, var(--accent-2, var(--accent)) 28%, #0f2848 72%) 52%,
      color-mix(in srgb, var(--accent) 22%, #180818 78%) 100%
    ) !important;
}

html[data-design-skin="nexus"][data-theme="light"] .dashboard-hero-analytics,
html[data-design-skin="nexus"][data-theme="light"] .dashboard-hero-medical {
  background:
    linear-gradient(
      135deg,
      color-mix(in srgb, var(--accent) 55%, #1e3a5f 45%) 0%,
      color-mix(in srgb, var(--accent-2, var(--accent)) 48%, #243b6b 52%) 52%,
      color-mix(in srgb, var(--accent) 40%, #1a2744 60%) 100%
    ) !important;
  color: #fff !important;
}

html[data-design-skin="nexus"] .dashboard-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(105deg, transparent 40%, rgba(255, 255, 255, 0.06) 50%, transparent 60%);
  animation: nexus-shimmer 6s ease-in-out infinite;
}

@keyframes nexus-shimmer {
  0%, 100% { opacity: 0; transform: translateX(-30%); }
  50% { opacity: 1; transform: translateX(30%); }
}

html[data-design-skin="nexus"] .hero {
  background: var(--nexus-glass) !important;
  backdrop-filter: blur(12px);
  border: 1px solid var(--nexus-glass-border) !important;
}

html[data-design-skin="nexus"] .stat-card::before {
  height: 2px;
  box-shadow: 0 0 12px var(--nexus-glow);
}

html[data-design-skin="nexus"] .stat-card-icon {
  box-shadow: 0 0 14px var(--nexus-glow);
}

html[data-design-skin="nexus"] .tab[aria-selected="true"] {
  box-shadow: 0 0 16px var(--nexus-glow);
  border-color: color-mix(in srgb, var(--accent) 50%, transparent) !important;
}

html[data-design-skin="nexus"] .omni-input {
  background: color-mix(in srgb, var(--nexus-glass) 90%, transparent) !important;
  backdrop-filter: blur(10px);
  border-color: var(--nexus-glass-border) !important;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

html[data-design-skin="nexus"] .omni-input:focus {
  box-shadow: 0 0 0 3px var(--nexus-glow), inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

/* ---------- Workbook changelist ---------- */
html[data-design-skin="nexus"] body.generic-workbook-page .enhanced-table-container,
html[data-design-skin="nexus"] body.generic-workbook-page .generic-table-full-bleed,
html[data-design-skin="nexus"] body.generic-workbook-page .changelist-form-container,
html[data-design-skin="nexus"] body.generic-workbook-page #toolbar-panel,
html[data-design-skin="nexus"] body.generic-workbook-page .workbook-command-sidebar {
  background: var(--nexus-glass) !important;
  backdrop-filter: blur(14px) saturate(1.2);
  border-color: var(--nexus-glass-border) !important;
}

html[data-design-skin="nexus"] body.generic-workbook-page #result_list thead th {
  background: color-mix(in srgb, var(--accent) 12%, var(--surface, #0f1724)) !important;
  border-bottom: 1px solid var(--nexus-glass-border) !important;
  text-shadow: 0 0 20px color-mix(in srgb, var(--accent) 30%, transparent);
}

html[data-design-skin="nexus"][data-theme="light"] body.generic-workbook-page #result_list thead th {
  background: color-mix(in srgb, var(--accent) 10%, #e8eef8) !important;
  text-shadow: none;
  color: var(--app-text, #0f172a);
}

html[data-design-skin="nexus"] body.generic-workbook-page #result_list tbody tr:hover {
  background: color-mix(in srgb, var(--accent) 8%, var(--surface, #0f1724)) !important;
  box-shadow: inset 3px 0 0 var(--accent);
}

html[data-design-skin="nexus"][data-theme="light"] body.generic-workbook-page #result_list tbody tr:hover {
  background: color-mix(in srgb, var(--accent) 10%, #ffffff) !important;
}

html[data-design-skin="nexus"] body.generic-workbook-page .workbook-tab.is-active,
html[data-design-skin="nexus"] body.generic-workbook-page .wb-tab-active {
  box-shadow: 0 0 18px var(--nexus-glow);
}

html[data-design-skin="nexus"] #content .object-tools a,
html[data-design-skin="nexus"] #content a.button,
html[data-design-skin="nexus"] #content .button {
  box-shadow: 0 0 14px color-mix(in srgb, var(--accent) 22%, transparent);
  transition: box-shadow 0.2s ease, transform 0.15s ease;
}

html[data-design-skin="nexus"] #content .object-tools a:hover,
html[data-design-skin="nexus"] #content a.button:hover {
  box-shadow: 0 0 22px var(--nexus-glow);
  transform: translateY(-1px);
}

/* ---------- Assignment dashboard ---------- */
html[data-design-skin="nexus"] .navbar-custom {
  background: color-mix(in srgb, var(--nexus-glass) 92%, transparent) !important;
  backdrop-filter: blur(20px) saturate(1.4);
  border-bottom: 1px solid var(--nexus-glass-border) !important;
  box-shadow: 0 4px 24px color-mix(in srgb, var(--accent) 12%, transparent);
}

html[data-design-skin="nexus"] .content-wrapper .card,
html[data-design-skin="nexus"] .content-wrapper .stat-card,
html[data-design-skin="nexus"] .content-wrapper .dashboard-card,
html[data-design-skin="nexus"] .content-wrapper .page-header {
  background: var(--nexus-glass) !important;
  backdrop-filter: blur(14px);
  border: 1px solid var(--nexus-glass-border) !important;
  box-shadow: var(--nexus-shadow);
  border-radius: 14px !important;
}

html[data-design-skin="nexus"][data-theme="light"] .content-wrapper .card,
html[data-design-skin="nexus"][data-theme="light"] .content-wrapper .stat-card,
html[data-design-skin="nexus"][data-theme="light"] .content-wrapper .dashboard-card,
html[data-design-skin="nexus"][data-theme="light"] .content-wrapper .page-header {
  box-shadow: var(--nexus-shadow), inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

html[data-design-skin="nexus"] .content-wrapper .page-header {
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.25rem;
}

html[data-design-skin="nexus"] .content-wrapper .btn-primary {
  box-shadow: 0 0 18px color-mix(in srgb, var(--accent) 30%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 40%, transparent);
}

html[data-design-skin="nexus"] .content-wrapper .table {
  --bs-table-bg: transparent;
}

html[data-design-skin="nexus"] .content-wrapper .table thead th {
  background: color-mix(in srgb, var(--accent) 10%, var(--surface, #1e293b)) !important;
  border-color: var(--nexus-glass-border) !important;
}

html[data-design-skin="nexus"] .content-wrapper .table tbody tr:hover {
  background: color-mix(in srgb, var(--accent) 7%, transparent) !important;
}

html[data-design-skin="nexus"] .assignment-float-stack #theme-toggle,
html[data-design-skin="nexus"] .assignment-float-stack .assignment-appearance-fab {
  background: color-mix(in srgb, var(--app-surface) 75%, transparent) !important;
  backdrop-filter: blur(10px);
  border: 1px solid var(--nexus-glass-border, var(--app-border)) !important;
  color: var(--accent-color) !important;
  box-shadow: 0 0 18px color-mix(in srgb, var(--accent) 20%, transparent);
}

html[data-design-skin="nexus"] .assignment-float-stack {
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.2));
}

html[data-design-skin="nexus"] .assignment-float-stack .assignment-appearance-fab,
html[data-design-skin="nexus"] .assignment-float-stack #theme-toggle {
  width: 3rem;
  height: 3rem;
  border-radius: 999px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

/* ---------- Appearance panel in Nexus mode ---------- */
html[data-design-skin="nexus"] .appearance-panel {
  background: color-mix(in srgb, #0f1724 88%, transparent) !important;
  backdrop-filter: blur(24px) saturate(1.5);
  border-left-color: var(--nexus-glass-border) !important;
  box-shadow: -16px 0 48px rgba(0, 0, 0, 0.35), 0 0 40px var(--nexus-glow);
  --surface: #0f1724;
  --t1: #e6eef8;
  --t2: #94a3b8;
  --border: #334155;
  color: var(--t1);
}

/* Light: frosted panel with readable contrast (not washed white, not dark-on-dark) */
html[data-design-skin="nexus"][data-theme="light"] .appearance-panel {
  background: color-mix(in srgb, #f1f5f9 94%, var(--accent, #64748b)) !important;
  border-left-color: var(--nexus-glass-border) !important;
  box-shadow: -16px 0 48px rgba(15, 23, 42, 0.2), 0 0 36px var(--nexus-glow);
  --surface: #ffffff;
  --t1: #0f172a;
  --t2: #475569;
  --border: color-mix(in srgb, var(--accent, #64748b) 20%, #cbd5e1);
  color: var(--t1);
}

html[data-design-skin="nexus"][data-theme="light"] .appearance-segmented {
  background: color-mix(in srgb, var(--accent, #64748b) 8%, #e2e8f0);
}

html[data-design-skin="nexus"][data-theme="light"] .appearance-segmented button[aria-pressed="true"] {
  background: #ffffff;
  box-shadow: 0 1px 4px rgba(15, 23, 42, 0.1);
}

html[data-design-skin="nexus"][data-theme="light"] .appearance-skin-card {
  background: #ffffff;
  border-color: color-mix(in srgb, var(--accent, #64748b) 18%, #cbd5e1);
}

html[data-design-skin="nexus"][data-theme="light"] .appearance-section--featured {
  background: color-mix(in srgb, var(--accent) 8%, #ffffff);
  border-color: color-mix(in srgb, var(--accent) 28%, #cbd5e1);
}

html[data-design-skin="nexus"] .appearance-skin-card[aria-pressed="true"] {
  border-color: var(--accent) !important;
  box-shadow: 0 0 20px var(--nexus-glow);
}

/* ---------- Staff productivity dashboard: keep Nexus fast & flat ---------- */
/* Disable animated mesh/grid overlays — expensive on a dense fixed dashboard */
html[data-design-skin="nexus"] body.productivity-dashboard-active {
  background-image: none !important;
  background-color: var(--bg, #0b0f14) !important;
}
html[data-design-skin="nexus"] body.productivity-dashboard-active::before,
html[data-design-skin="nexus"] body.productivity-dashboard-active::after {
  content: none !important;
  display: none !important;
  animation: none !important;
}
/* Keep staff-dashboard cool-blue wash (do not flatten to solid grey/black) */
html[data-design-skin="nexus"] body.productivity-dashboard-active .dashboard-container {
  background:
    radial-gradient(90% 60% at 100% 0%, color-mix(in srgb, var(--accent, #94a3b8) 12%, transparent), transparent 55%),
    radial-gradient(70% 50% at 0% 100%, color-mix(in srgb, var(--pdb-sky, #c5d4ea) 22%, transparent), transparent 50%),
    var(--bg, #e8eef8);
}
html[data-theme="dark"][data-design-skin="nexus"] body.productivity-dashboard-active .dashboard-container {
  background:
    radial-gradient(90% 60% at 100% 0%, color-mix(in srgb, var(--accent, #64748b) 16%, transparent), transparent 55%),
    radial-gradient(70% 50% at 0% 100%, color-mix(in srgb, var(--pdb-sky, #3d5578) 24%, transparent), transparent 50%),
    var(--bg, #152033);
}
/* Metric cards: keep dashboard 3D glass; nudge Nexus tokens only */
html[data-design-skin="nexus"] body.productivity-dashboard-active #metrics-grid {
  border-color: var(--nexus-glass-border) !important;
}
html[data-design-skin="nexus"] body.productivity-dashboard-active .metric-card {
  border-color: var(--nexus-glass-border) !important;
}
@media (prefers-reduced-transparency: reduce) {
  html[data-design-skin="nexus"] body.productivity-dashboard-active .metric-card,
  html[data-design-skin="nexus"] body.productivity-dashboard-active .metric-card:hover {
    background: var(--surface, #151b23) !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    box-shadow: var(--sh-md, none) !important;
    border-color: var(--border-s, #2a3340) !important;
    transform: none !important;
  }
}
html[data-design-skin="nexus"] body.productivity-dashboard-active .section-container,
html[data-design-skin="nexus"] body.productivity-dashboard-active .staff-panel,
html[data-design-skin="nexus"] body.productivity-dashboard-active .aging-panel,
html[data-design-skin="nexus"] body.productivity-dashboard-active .insights-panel,
html[data-design-skin="nexus"] body.productivity-dashboard-active .dashboard-top-bar {
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
  box-shadow: none !important;
}
/* Keep floating appearance controls readable without glow filters */
html[data-design-skin="nexus"] body.productivity-dashboard-active .assignment-float-stack {
  filter: none;
}

@media (prefers-reduced-motion: reduce) {
  html[data-design-skin="nexus"] body::after,
  html[data-design-skin="nexus"] .dashboard-hero::after {
    animation: none !important;
  }
}