:root {
  --bz-ink: #1a2332;
  --bz-ink-strong: #111824;
  --bz-steel: #2f5d7a;
  --bz-steel-soft: #e8eff4;
  --bz-paper: #f3efe6;

  --zinc-50: #fafafa;
  --zinc-100: #f4f4f5;
  --zinc-200: #e4e4e7;
  --zinc-300: #d4d4d8;
  --zinc-400: #a1a1aa;
  --zinc-500: #71717a;
  --zinc-600: #52525b;
  --zinc-700: #3f3f46;
  --zinc-800: #27272a;
  --zinc-900: #18181b;
  --zinc-950: #09090b;

  --emerald-text: #047857;
  --emerald-bg: rgb(16 185 129 / 0.1);
  --emerald-border: rgb(16 185 129 / 0.25);

  --amber-text: #b45309;
  --amber-bg: rgb(245 158 11 / 0.1);
  --amber-border: rgb(245 158 11 / 0.25);

  --blue-text: #1d4ed8;
  --blue-bg: rgb(59 130 246 / 0.1);
  --blue-border: rgb(59 130 246 / 0.25);

  --danger: #b91c1c;
  --danger-bg: #fef2f2;
  --success: #15803d;

  --surface: #ffffff;
  --surface-muted: var(--zinc-50);
  --border: rgb(228 228 231 / 0.9);
  --text: var(--zinc-900);
  --text-muted: var(--zinc-600);

  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --container-max: 74rem;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text);
  background-color: var(--surface);
  -webkit-font-smoothing: antialiased;
}

.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.skip-link {
  position: absolute;
  inset-block-start: -3rem;
  inset-inline-start: 1rem;
  z-index: 100;
  padding: 0.5rem 0.875rem;
  background: var(--bz-ink);
  color: var(--bz-paper);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
}

.skip-link:focus {
  inset-block-start: 1rem;
}

:focus-visible {
  outline: 2px solid var(--bz-steel);
  outline-offset: 2px;
}

.visually-hidden:where(:not(:focus-within, :active)) {
  position: absolute !important;
  clip-path: inset(50%) !important;
  overflow: hidden !important;
  width: 1px !important;
  height: 1px !important;
  margin: -1px !important;
  padding: 0 !important;
  border: 0 !important;
  white-space: nowrap !important;
}

.container {
  inline-size: min(100% - 2.5rem, var(--container-max));
  margin-inline: auto;
}

/* Header & Responsive Navigation */
.site-header {
  position: sticky;
  inset-block-start: 0;
  z-index: 40;
  background: rgb(255 255 255 / 0.92);
  backdrop-filter: blur(10px);
  border-block-end: 1px solid var(--border);
}

.site-header.is-measuring * {
  transition: none !important;
}

.header-inner {
  inline-size: min(100% - 2.5rem, var(--container-max));
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-block-size: 4rem;
}

.header-inner > * {
  flex-shrink: 0;
  white-space: nowrap;
}

.site-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--bz-ink);
}

.brand-mark {
  display: block;
  inline-size: 1.625rem;
  block-size: 1.625rem;
  flex-shrink: 0;
  transform: translateY(-0.03em);
}

.brand-name {
  font-weight: 700;
  font-size: 1.1875rem;
  letter-spacing: -0.03em;
  line-height: 1;
}

.brand-divider {
  inline-size: 1px;
  block-size: 0.9375rem;
  background: var(--zinc-300);
  margin-inline: 0.1rem;
}

.brand-tag {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--bz-steel);
  line-height: 1;
  padding-block-start: 0.06em;
}

.menu-button {
  anchor-name: --menu-button;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.85rem;
  font: inherit;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--bz-ink);
  background: var(--surface);
  border: 1px solid var(--zinc-300);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.menu-button:hover {
  background: var(--zinc-50);
}

.site-menu {
  list-style: none;
  margin: 0;
  padding: 0.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: 0 12px 32px -8px rgb(26 35 50 / 0.16);
}

.site-menu[popover] {
  position: fixed;
  inset: auto;
  inset-block-start: 4.5rem;
  inset-block-start: anchor(--menu-button bottom);
  inset-inline-end: 1.25rem;
  inline-size: min(82dvw, 20rem);
  max-inline-size: calc(100dvw - 2.5rem);
  block-size: fit-content;
  max-block-size: calc(100dvh - 6rem);
  margin-block-start: 0.5rem;
  overflow: auto;
}

.site-menu:not(:is(:popover-open, .\:popover-open)) {
  display: none;
}

.site-menu:is(:popover-open, .\:popover-open) {
  display: grid;
  gap: 0.25rem;
}

.site-menu a,
.site-menu .nav-cta {
  display: flex;
  align-items: center;
  inline-size: 100%;
  padding: 0.55rem 0.8rem;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  color: var(--zinc-700);
  background: transparent;
  border: 0;
  cursor: pointer;
  text-align: start;
}

.site-menu a:hover {
  color: var(--bz-ink);
  background: var(--zinc-100);
}

.site-menu .nav-cta {
  justify-content: center;
  margin-block-start: 0.25rem;
  background: var(--bz-ink);
  color: var(--bz-paper);
}

.site-menu .nav-cta:hover {
  background: var(--bz-ink-strong);
}

.site-header.is-wide {
  .menu-button {
    display: none;
  }

  .site-menu {
    position: static;
    display: flex;
    align-items: center;
    gap: 0.35rem;
    inline-size: auto;
    max-inline-size: none;
    block-size: auto;
    max-block-size: none;
    overflow: visible;
    margin: 0;
    padding: 0;
    border: 0;
    background: transparent;
    box-shadow: none;
  }

  .site-menu::backdrop {
    display: none;
  }

  .site-menu a {
    inline-size: auto;
    padding: 0.45rem 0.75rem;
  }

  .site-menu .nav-cta {
    inline-size: auto;
    margin-block-start: 0;
    margin-inline-start: 0.5rem;
    padding: 0.45rem 0.95rem;
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-block-size: 2.625rem;
  padding: 0.6rem 1.2rem;
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.btn-primary {
  background: var(--bz-ink);
  color: var(--bz-paper);
}

.btn-primary:hover {
  background: var(--bz-ink-strong);
}

.btn-secondary {
  background: var(--surface);
  color: var(--bz-ink);
  border-color: var(--zinc-300);
}

.btn-secondary:hover {
  background: var(--zinc-50);
  border-color: var(--zinc-400);
}

.btn-paper {
  background: var(--bz-paper);
  color: var(--bz-ink);
}

.btn-paper:hover {
  background: #ffffff;
}

/* Hero */
.hero {
  padding-block: clamp(3rem, 6vw, 5.5rem);
  border-block-end: 1px solid var(--border);
  background-image:
    linear-gradient(to right, rgb(26 35 50 / 0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgb(26 35 50 / 0.035) 1px, transparent 1px);
  background-size: 24px 24px;
}

.hero-grid {
  display: grid;
  gap: clamp(2rem, 4vw, 3.5rem);
  align-items: center;
}

@media (min-width: 60rem) {
  .hero-grid {
    grid-template-columns: 1.05fr 1.15fr;
  }
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--zinc-700);
  margin-block-end: 1.25rem;
}

.status-dot {
  inline-size: 0.5rem;
  block-size: 0.5rem;
  border-radius: 50%;
  background: var(--bz-steel);
}

.hero h1 {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 1.4rem + 2.5vw, 3.25rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  font-weight: 600;
  color: var(--bz-ink);
}

.hero-lead {
  margin: 0 0 1.75rem;
  font-size: clamp(1rem, 0.95rem + 0.3vw, 1.125rem);
  color: var(--text-muted);
  max-inline-size: 56ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-block-end: 2.25rem;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr));
  gap: 1rem;
  margin: 0;
  padding-block-start: 1.5rem;
  border-block-start: 1px solid var(--border);
}

.hero-metrics dt {
  font-size: 0.75rem;
  color: var(--zinc-500);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.hero-metrics dd {
  margin: 0.2rem 0 0;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--bz-ink);
}

/* Workspace Preview Mockup */
.hero-showcase {
  container-type: inline-size;
}

.workspace-frame {
  background: var(--surface);
  border: 1px solid var(--zinc-300);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 44px -18px rgb(26 35 50 / 0.14);
}

.workspace-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.65rem 1rem;
  background: var(--zinc-50);
  border-block-end: 1px solid var(--border);
}

.window-dots {
  display: flex;
  gap: 0.35rem;
}

.window-dots span {
  inline-size: 0.55rem;
  block-size: 0.55rem;
  border-radius: 50%;
  background: var(--zinc-300);
}

.workspace-title {
  font-size: 0.75rem;
  color: var(--zinc-500);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.kpi-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-block-end: 1px solid var(--border);
}

@container (max-width: 28rem) {
  .kpi-strip {
    grid-template-columns: 1fr;
  }
}

.kpi-cell {
  padding: 0.9rem 1rem;
  display: grid;
  gap: 0.2rem;
}

.kpi-cell + .kpi-cell {
  border-inline-start: 1px solid var(--border);
}

@container (max-width: 28rem) {
  .kpi-cell + .kpi-cell {
    border-inline-start: 0;
    border-block-start: 1px solid var(--border);
  }
}

.kpi-label {
  font-size: 0.75rem;
  color: var(--zinc-500);
}

.kpi-value {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--bz-ink);
}

.kpi-delta {
  font-size: 0.75rem;
  color: var(--zinc-500);
}

.kpi-delta.positive {
  color: var(--emerald-text);
}

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

.erp-table {
  inline-size: 100%;
  border-collapse: collapse;
  font-size: 0.8125rem;
}

.erp-table th {
  padding: 0.55rem 0.9rem;
  text-align: start;
  font-weight: 500;
  font-size: 0.75rem;
  color: var(--zinc-600);
  background: var(--zinc-50);
  border-block-end: 1px solid var(--border);
}

.erp-table td {
  padding: 0.65rem 0.9rem;
  border-block-end: 1px solid var(--border);
  color: var(--zinc-800);
  white-space: nowrap;
}

.erp-table tbody tr:last-child td {
  border-block-end: 0;
}

.erp-table .num {
  text-align: end;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 500;
  border: 1px solid transparent;
  white-space: nowrap;
}

.badge-success {
  background: var(--emerald-bg);
  color: var(--emerald-text);
  border-color: var(--emerald-border);
}

.badge-warning {
  background: var(--amber-bg);
  color: var(--amber-text);
  border-color: var(--amber-border);
}

.badge-info {
  background: var(--blue-bg);
  color: var(--blue-text);
  border-color: var(--blue-border);
}

/* Sections */
.section {
  padding-block: clamp(3.5rem, 6vw, 5.5rem);
}

.section-muted {
  background: var(--surface-muted);
  border-block-end: 1px solid var(--border);
}

.section-dark {
  background: var(--bz-ink);
  color: var(--bz-paper);
}

.section-header {
  max-inline-size: 42rem;
  margin-block-end: 2.5rem;
}

.section-kicker {
  margin: 0 0 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--bz-steel);
}

.section-dark .section-kicker {
  color: #8fb8d4;
}

.section-header h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.5rem, 1.2rem + 1.4vw, 2.25rem);
  line-height: 1.15;
  letter-spacing: -0.025em;
  font-weight: 600;
}

.section-desc {
  margin: 0;
  color: var(--text-muted);
}

.section-dark .section-desc {
  color: #cbd5e1;
}

/* Suite Grid */
.suite-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15.5rem, 1fr));
  gap: 1.25rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.card-top {
  display: grid;
  gap: 0.35rem;
}

.module-code {
  font-size: 0.75rem;
  color: var(--bz-steel);
}

.card h3 {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--bz-ink);
}

.card p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--text-muted);
}

.card-list {
  margin: auto 0 0;
  padding-inline-start: 1.1rem;
  font-size: 0.875rem;
  color: var(--zinc-700);
  display: grid;
  gap: 0.35rem;
}

kbd {
  font-family: var(--font-mono);
  font-size: 0.75em;
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  background: var(--zinc-100);
  border: 1px solid var(--zinc-300);
}

/* Tabs */
.tabs-shell {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  overflow: hidden;
}

.tablist {
  display: flex;
  overflow-x: auto;
  border-block-end: 1px solid var(--border);
  background: var(--zinc-50);
  scrollbar-width: none;
}

.tablist::-webkit-scrollbar {
  display: none;
}

.tablist button {
  flex: none;
  position: relative;
  padding: 0.9rem 1.25rem;
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--zinc-600);
  background: transparent;
  border: 0;
  cursor: pointer;
  white-space: nowrap;
}

.tablist button:hover {
  color: var(--bz-ink);
}

.tablist button[aria-selected="true"] {
  color: var(--bz-ink);
}

.tablist button[aria-selected="true"]::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  border-block-end: 2px solid var(--bz-steel);
}

.tab-panels {
  display: grid;
}

.tab-panels > [role="tabpanel"] {
  grid-area: 1 / 1;
}

.panel-inner {
  padding: clamp(1.25rem, 3vw, 2rem);
  display: grid;
  gap: 1.75rem;
}

@media (min-width: 54rem) {
  .panel-inner {
    grid-template-columns: 1.35fr 1fr;
    align-items: start;
  }
}

.panel-tag {
  display: inline-block;
  font-size: 0.75rem;
  color: var(--bz-steel);
  margin-block-end: 0.5rem;
}

.panel-copy h3 {
  margin: 0 0 0.65rem;
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--bz-ink);
}

.panel-copy p {
  margin: 0 0 1.25rem;
  color: var(--text-muted);
}

.feature-grid {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.65rem;
  font-size: 0.9375rem;
  color: var(--zinc-700);
}

.panel-spec {
  background: var(--zinc-50);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
}

.spec-header {
  font-size: 0.75rem;
  color: var(--zinc-500);
  padding-block-end: 0.75rem;
  margin-block-end: 0.9rem;
  border-block-end: 1px solid var(--border);
}

.flow-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.75rem;
  font-size: 0.875rem;
}

.flow-list li {
  display: flex;
  gap: 0.65rem;
  align-items: baseline;
}

.flow-list span {
  color: var(--bz-steel);
  font-weight: 600;
}

.spec-stats {
  margin: 0;
  display: grid;
  gap: 0.75rem;
}

.spec-stats div {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.875rem;
}

.spec-stats dt {
  color: var(--zinc-600);
}

.spec-stats dd {
  margin: 0;
  color: var(--bz-ink);
  font-weight: 500;
}

.ledger-mini {
  font-size: 0.8125rem;
  display: grid;
  gap: 0.45rem;
}

.ledger-row {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 0.5rem;
}

.ledger-row span:nth-child(2),
.ledger-row span:nth-child(3) {
  text-align: end;
}

.ledger-row.head {
  color: var(--zinc-500);
  font-size: 0.75rem;
  border-block-end: 1px solid var(--border);
  padding-block-end: 0.35rem;
}

.pill-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.75rem;
}

.pill-list li {
  padding: 0.35rem 0.65rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--bz-ink);
}

/* Fiscal Grid */
.fiscal-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr));
  gap: 1.5rem;
}

.fiscal-card {
  background: rgb(255 255 255 / 0.04);
  border: 1px solid rgb(243 239 230 / 0.16);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}

.fiscal-head {
  margin-block-end: 1rem;
}

.region-badge {
  display: inline-block;
  font-size: 0.75rem;
  color: #8fb8d4;
  margin-block-end: 0.4rem;
}

.fiscal-card h3 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 600;
}

.fiscal-card ul {
  margin: 0;
  padding-inline-start: 1.15rem;
  display: grid;
  gap: 0.5rem;
  color: #e2e8f0;
  font-size: 0.9375rem;
}

/* Architecture Grid */
.arch-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: 1.5rem;
}

.arch-item {
  border-block-start: 1px solid var(--border);
  padding-block-start: 1.25rem;
}

.arch-num {
  display: inline-block;
  font-size: 0.8125rem;
  color: var(--bz-steel);
  margin-block-end: 0.5rem;
}

.arch-item h3 {
  margin: 0 0 0.5rem;
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--bz-ink);
}

.arch-item p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--text-muted);
}

/* CTA */
.section-cta {
  padding-block-start: 0;
}

.cta-box {
  background: var(--bz-ink);
  color: var(--bz-paper);
  border-radius: var(--radius-lg);
  padding: clamp(1.75rem, 4vw, 3rem);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.cta-box h2 {
  margin: 0 0 0.4rem;
  font-size: clamp(1.35rem, 1.1rem + 1vw, 1.85rem);
  font-weight: 600;
}

.cta-box p {
  margin: 0;
  color: #cbd5e1;
}

/* Footer */
.site-footer {
  border-block-start: 1px solid var(--border);
  padding-block: 2rem;
  background: var(--zinc-50);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  font-size: 0.875rem;
  color: var(--zinc-600);
}

.footer-brand {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.45rem;
}

.footer-brand .brand-mark {
  align-self: center;
  inline-size: 1.25rem;
  block-size: 1.25rem;
  transform: translateY(-0.04em);
}

.footer-brand .brand-name {
  font-size: 1.0625rem;
  line-height: 1;
  color: var(--bz-ink);
}

.footer-sub {
  line-height: 1;
}

.footer-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Scroll-driven reveal animations with progressive enhancement */
@media (prefers-reduced-motion: no-preference) {
  @supports ((animation-timeline: view()) and (animation-range: entry)) {
    @keyframes reveal-up {
      from {
        opacity: 0;
        transform: translateY(18px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    .reveal-item {
      animation: reveal-up auto linear both;
      animation-timeline: view();
      animation-range: entry 0% entry 35%;
    }
  }

  @supports not ((animation-timeline: view()) and (animation-range: entry)) {
    .reveal-item {
      opacity: 0;
      transform: translateY(16px);
      transition: opacity 0.45s ease-out, transform 0.45s ease-out;
    }

    .reveal-item.is-visible {
      opacity: 1;
      transform: translateY(0);
    }
  }
}

/* Modal Dialog (Light-dismiss, Scroll containment, Top-layer animation) */
dialog.demo-dialog {
  margin: auto;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  inline-size: min(100% - 2rem, 34rem);
  max-block-size: calc(100dvh - 2rem);
  background: var(--surface);
  color: var(--text);
  box-shadow: 0 24px 48px -12px rgb(26 35 50 / 0.25);

  opacity: 0;
  transition-property: opacity, transform, display, overlay;
  transition-duration: 0.25s;
  transition-timing-function: ease-out;
  transition-behavior: allow-discrete;
}

@media (prefers-reduced-motion: no-preference) {
  dialog.demo-dialog {
    transform: scale(0.96);
  }
}

@media (prefers-reduced-motion: reduce) {
  dialog.demo-dialog {
    transition-duration: 0.1s;
  }
}

dialog.demo-dialog:modal {
  overscroll-behavior: contain;
}

dialog.demo-dialog::backdrop {
  overflow: hidden;
  overscroll-behavior: contain;
  background-color: rgb(9 9 11 / 0);
  transition-property: background-color, display, overlay;
  transition-duration: 0.25s;
  transition-timing-function: ease-out;
  transition-behavior: allow-discrete;
}

dialog.demo-dialog[open]:where(:not([data-closing])) {
  opacity: 1;

  @starting-style {
    opacity: 0;
  }

  @media (prefers-reduced-motion: no-preference) {
    transform: scale(1);

    @starting-style {
      transform: scale(0.96);
    }
  }

  &::backdrop {
    background-color: rgb(9 9 11 / 0.55);

    @starting-style {
      background-color: rgb(9 9 11 / 0);
    }
  }
}

.dialog-surface {
  padding: 1.5rem;
}

.dialog-header {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 1rem;
  margin-block-end: 1.25rem;
}

.dialog-kicker {
  margin: 0 0 0.2rem;
  font-size: 0.75rem;
  color: var(--bz-steel);
}

.dialog-header h2 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--bz-ink);
}

.dialog-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  inline-size: 2rem;
  block-size: 2rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--zinc-600);
  cursor: pointer;
}

.dialog-close:hover {
  background: var(--zinc-100);
  color: var(--bz-ink);
}

/* Form & Validation after interaction */
.demo-form {
  display: grid;
  gap: 1rem;
}

.field-row {
  display: grid;
  gap: 1rem;
}

@media (min-width: 34rem) {
  .field-row {
    grid-template-columns: 1fr 1fr;
  }
}

.field {
  display: grid;
  gap: 0.25rem;
}

.field label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--bz-ink);
}

.hint {
  font-size: 0.8125rem;
  color: var(--zinc-500);
}

.field input,
.field select,
.field textarea {
  inline-size: 100%;
  padding: 0.55rem 0.75rem;
  font-family: inherit;
  font-size: 0.9375rem;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--zinc-300);
  border-radius: var(--radius-sm);
}

.field :is(input, select):is(:user-invalid, .user-invalid-fallback) {
  border-color: var(--danger);
  background-color: var(--danger-bg);
}

.field :is(input, select):is(:user-valid, .user-valid-fallback) {
  border-color: var(--success);
}

.error-msg {
  display: none;
  font-size: 0.8125rem;
  color: var(--danger);
}

.field :is(input, select):is(:user-invalid, .user-invalid-fallback) + .error-msg {
  display: block;
}

.dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  margin-block-start: 0.5rem;
}

.demo-success {
  display: grid;
  gap: 0.75rem;
  justify-items: start;
  padding-block: 0.5rem;
}

.demo-success[hidden] {
  display: none;
}

.success-badge {
  font-size: 0.75rem;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  background: var(--emerald-bg);
  color: var(--emerald-text);
  border: 1px solid var(--emerald-border);
}

.demo-success h3 {
  margin: 0;
  font-size: 1.15rem;
  color: var(--bz-ink);
}

.demo-success p {
  margin: 0 0 0.5rem;
  color: var(--text-muted);
}