.demo-page {
  min-height: 100vh;
  background:
    radial-gradient(circle at 8% 4%, rgba(141, 156, 170, 0.24), transparent 27rem),
    linear-gradient(135deg, var(--color-primary-950), var(--color-primary-700));
}

.demo-page a {
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.demo-shell {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(430px, 0.78fr);
  width: min(1180px, calc(100% - 40px));
  min-height: min(760px, calc(100vh - 64px));
  margin: 32px auto;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.07);
  box-shadow: var(--shadow-3);
}

.demo-intro {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: clamp(32px, 5vw, 72px);
  color: var(--color-text-inverse);
}

.demo-intro::after {
  position: absolute;
  right: -9rem;
  bottom: -10rem;
  width: 28rem;
  height: 28rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 50%;
  content: "";
}

.demo-brand {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  width: fit-content;
  text-decoration: none;
}

.demo-brand__mark {
  display: grid;
  width: 52px;
  height: 52px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 15px;
  background: rgba(255, 255, 255, 0.10);
}

.demo-brand__mark img {
  width: 40px;
  height: 40px;
}

.demo-brand__copy {
  display: grid;
  line-height: 1.25;
}

.demo-brand__copy strong {
  font-size: 1.1rem;
  letter-spacing: 0.04em;
}

.demo-brand__copy small {
  color: rgba(255, 255, 255, 0.65);
  font-size: var(--font-size-caption);
}

.demo-intro__content {
  position: relative;
  z-index: 1;
  max-width: 600px;
  padding: var(--space-12) 0;
}

.demo-kicker,
.demo-panel__eyebrow {
  margin: 0 0 var(--space-3);
  font-size: var(--font-size-overline);
  font-weight: var(--font-weight-bold);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.demo-kicker {
  color: rgba(255, 255, 255, 0.66);
}

.demo-intro h1 {
  max-width: 720px;
  margin: 0;
  font-size: clamp(2.2rem, 5vw, 4.5rem);
  line-height: 1.04;
  letter-spacing: -0.045em;
}

.demo-intro__lead {
  max-width: 620px;
  margin: var(--space-6) 0 0;
  color: rgba(255, 255, 255, 0.76);
  font-size: var(--font-size-body-lg);
}

.demo-proof {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-8);
}

.demo-proof span,
.demo-status {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  border-radius: var(--radius-pill);
  font-size: var(--font-size-caption);
  font-weight: var(--font-weight-semibold);
}

.demo-proof span {
  padding: var(--space-2) var(--space-3);
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.08);
}

.demo-proof span::before,
.demo-status::before {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #77d8a9;
  content: "";
}

.demo-intro__footer {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-6);
  color: rgba(255, 255, 255, 0.62);
  font-size: var(--font-size-caption);
}

.demo-intro__footer a:hover {
  color: var(--color-white);
}

.demo-panel {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(28px, 4vw, 56px);
  background: rgba(255, 255, 255, 0.97);
}

.demo-panel__eyebrow {
  color: var(--color-primary-500);
}

.demo-panel h2 {
  margin: 0;
  font-size: clamp(1.65rem, 3vw, 2.35rem);
  line-height: var(--line-height-tight);
  letter-spacing: -0.025em;
}

.demo-panel__lead {
  margin: var(--space-3) 0 var(--space-6);
  color: var(--color-text-secondary);
}

.demo-notice {
  display: flex;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
  padding: var(--space-4);
  border: 1px solid #c8e0ef;
  border-radius: var(--radius-md);
  background: var(--color-info-100);
  color: var(--color-info-700);
  font-size: var(--font-size-body-sm);
}

.demo-notice__icon {
  flex: 0 0 auto;
  font-weight: var(--font-weight-extrabold);
}

.demo-role-list {
  display: grid;
  gap: var(--space-3);
  margin: 0;
  padding: 0;
  border: 0;
}

.demo-role-list legend {
  margin-bottom: var(--space-3);
  color: var(--color-text-secondary);
  font-size: var(--font-size-label);
  font-weight: var(--font-weight-semibold);
}

.demo-role {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-3);
  padding: var(--space-4);
  border: var(--border-default);
  border-radius: var(--radius-md);
  background: var(--color-white);
  cursor: pointer;
  transition: border-color var(--duration-standard), box-shadow var(--duration-standard), transform var(--duration-standard);
}

.demo-role:hover {
  border-color: var(--color-primary-300);
  box-shadow: var(--shadow-1);
  transform: translateY(-1px);
}

.demo-role:has(input:checked) {
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 3px var(--color-focus-ring);
}

.demo-role input {
  width: 18px;
  height: 18px;
  margin: 3px 0 0;
  accent-color: var(--color-action-primary);
}

.demo-role__copy {
  display: grid;
  gap: 2px;
}

.demo-role__copy strong {
  font-size: var(--font-size-body);
}

.demo-role__copy small {
  color: var(--color-text-muted);
  font-size: var(--font-size-caption);
}

.demo-access {
  display: grid;
  gap: var(--space-2);
  margin-top: var(--space-5);
  color: var(--color-text-secondary);
  font-size: var(--font-size-label);
  font-weight: var(--font-weight-semibold);
}

.demo-access input {
  width: 100%;
  min-height: 48px;
  padding: 0 var(--space-4);
  border: var(--border-default);
  border-radius: var(--radius-md);
  background: var(--color-white);
  color: var(--color-text-primary);
  font: inherit;
  font-weight: var(--font-weight-regular);
}

.demo-access input:focus {
  border-color: var(--color-primary-500);
  outline: 3px solid var(--color-focus-ring);
}

.demo-access small {
  color: var(--color-text-muted);
  font-size: var(--font-size-caption);
  font-weight: var(--font-weight-regular);
}

.demo-access code {
  font-size: 0.92em;
}

.demo-submit {
  display: flex;
  width: 100%;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  margin-top: var(--space-5);
  padding: var(--space-3) var(--space-5);
  border: 0;
  border-radius: var(--radius-md);
  background: var(--color-action-primary);
  color: var(--color-text-inverse);
  font-weight: var(--font-weight-bold);
  cursor: pointer;
  transition: background var(--duration-standard), transform var(--duration-standard);
}

.demo-submit:hover {
  background: var(--color-action-primary-hover);
  transform: translateY(-1px);
}

.demo-submit:disabled {
  cursor: wait;
  opacity: 0.7;
  transform: none;
}

.demo-panel__links {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-3);
  margin-top: var(--space-5);
  color: var(--color-text-muted);
  font-size: var(--font-size-caption);
}

.demo-panel__links a:hover {
  color: var(--color-primary-700);
}

.demo-status {
  width: fit-content;
  margin-top: var(--space-6);
  padding: var(--space-2) var(--space-3);
  background: var(--color-success-100);
  color: var(--color-success-700);
}

.demo-status.is-error {
  background: var(--color-danger-100);
  color: var(--color-danger-700);
}

.demo-status.is-error::before {
  background: var(--color-danger-700);
}

.privacy-card {
  width: min(840px, calc(100% - 32px));
  margin: 32px auto;
  padding: clamp(28px, 6vw, 64px);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-3);
}

.privacy-card .demo-brand {
  color: var(--color-primary-800);
}

.privacy-card .demo-brand__mark {
  background: var(--color-primary-50);
}

.privacy-card .demo-brand__copy small {
  color: var(--color-text-muted);
}

.privacy-card h1 {
  margin: var(--space-10) 0 var(--space-3);
  font-size: clamp(2rem, 5vw, 3.35rem);
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.privacy-card h2 {
  margin: var(--space-8) 0 var(--space-2);
  font-size: var(--font-size-h3);
}

.privacy-card p,
.privacy-card li {
  color: var(--color-text-secondary);
}

.privacy-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-8);
}

.privacy-card__actions a {
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-md);
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
}

.privacy-card__primary {
  background: var(--color-action-primary);
  color: var(--color-white);
}

.privacy-card__secondary {
  border: var(--border-default);
  color: var(--color-primary-700);
}

@media (max-width: 880px) {
  .demo-shell {
    grid-template-columns: 1fr;
    width: min(680px, calc(100% - 24px));
    margin: 12px auto;
  }

  .demo-intro {
    min-height: 390px;
  }

  .demo-intro h1 {
    max-width: 580px;
  }
}

@media (max-width: 520px) {
  .demo-intro,
  .demo-panel {
    padding: 26px 22px;
  }

  .demo-intro__content {
    padding: var(--space-10) 0;
  }

  .demo-intro__footer,
  .demo-panel__links {
    flex-direction: column;
  }
}