/* ERP.AI Email: a compact narrative around a role-aware inbox illustration.
   Native radios keep the example usable without JavaScript or route lifecycle state. */
.email-page {
  --email-font: 'Geist Narrative', Supreme, sans-serif;
  --email-section-space: clamp(var(--space-16), 7vw, var(--space-24));
  --email-heading: clamp(2.25rem, 3.8vw, 3.5rem);
  --email-small: 0.8125rem;
  --email-body: 1.0625rem;
  color: var(--foreground);
}

.email-rail {
  width: min(calc(100% - var(--space-16)), 1280px);
  margin-inline: auto;
}

.email-hero {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  align-items: start;
  gap: clamp(var(--space-8), 5vw, var(--space-20));
  padding-block: var(--space-16) var(--email-section-space);
}

.email-intro {
  padding-block-start: var(--space-12);
}
.email-eyebrow {
  display: flex;
  gap: var(--space-3);
  margin-block-end: var(--space-6);
  font-size: var(--email-small);
  font-weight: 600;
}
.email-eyebrow span {
  padding-block-end: var(--space-2);
  border-bottom: 1px solid var(--border-strong);
}
.email-eyebrow span:first-child {
  color: var(--org-on-light);
  border-bottom-width: 2px;
}
.email-intro h1 {
  max-width: 12ch;
  font: 400 clamp(3.5rem, 5.2vw, 4.5rem)/1.02 var(--email-font);
  letter-spacing: -0.04em;
  text-wrap: balance;
}
.email-intro h1 strong,
.email-page h2 strong {
  font-weight: 800;
}
.email-lead {
  margin-block: var(--space-8) var(--space-4);
  font: 500 1.25rem/1.4 var(--email-font);
}
.email-body {
  max-width: 43ch;
  font: 400 var(--email-body)/1.65 var(--email-font);
  color: var(--text-m);
}
.email-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-block-start: var(--space-8);
}
.email-caption {
  max-width: 40ch;
  margin-block-start: var(--space-4);
  color: var(--text-m);
  font-size: var(--email-small);
  line-height: 1.5;
}

.email-role-picker {
  display: flex;
  gap: var(--space-1);
  border: 0;
  padding: 0;
  margin: 0 0 var(--space-4);
}
.email-role-picker legend {
  padding: 0;
  margin-block-end: var(--space-3);
  font-size: var(--email-small);
  color: var(--text-m);
}
.email-role {
  position: relative;
  flex: 1;
  cursor: pointer;
}
.email-role input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  opacity: 0;
}
.email-role span {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 44px;
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--tacet-radius-lg);
  font-weight: 600;
}
.email-role input:checked + span {
  color: var(--background);
  background: var(--foreground);
  border-color: var(--foreground);
}
.email-role input:focus-visible + span {
  outline: 2px solid var(--org-on-light);
  outline-offset: 3px;
}
.email-role:hover span {
  border-color: var(--foreground);
}
.email-scenario {
  display: none;
}
.email-demo:has(input[value='sales']:checked) .email-scenario--sales,
.email-demo:has(input[value='hr']:checked) .email-scenario--hr,
.email-demo:has(input[value='finance']:checked) .email-scenario--finance {
  display: block;
}
.email-inbox {
  overflow: hidden;
  border: 1px solid var(--border-strong);
  border-radius: var(--tacet-radius-xl);
  background: var(--card);
  box-shadow: var(--tacet-shadow-lg);
}
.email-inbox__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-6);
  border-bottom: 1px solid var(--border);
  font-size: var(--email-small);
  background: var(--surface-dim);
}
.email-inbox__bar b {
  margin-inline-end: var(--space-2);
}
.email-inbox__agent {
  color: var(--text-m);
}
.email-inbox__heading {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--space-3);
  padding: var(--space-6) var(--space-6) var(--space-2);
}
.email-inbox__heading strong {
  font-size: 1.25rem;
}
.email-inbox__heading > span {
  font-size: 0.75rem;
  color: var(--text-m);
}
.email-context {
  padding: 0 var(--space-6) var(--space-4);
  color: var(--text-m);
  font-size: 0.75rem;
}
.email-message {
  padding: var(--space-4) var(--space-6);
  border-block: 1px solid var(--border);
  background: var(--surface-dim);
}
.email-message__meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--email-small);
}
.email-signal {
  color: var(--org-on-light);
  font-weight: 600;
}
.email-message__subject {
  margin-block: var(--space-2) var(--space-4);
  font-weight: 600;
  line-height: 1.4;
}
.email-agent-note {
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--tacet-radius-lg);
  background: var(--background);
  font-size: var(--email-small);
  line-height: 1.5;
}
.email-agent-note__label {
  color: var(--org-on-light);
  font-weight: 600;
}
.email-agent-note p {
  margin-block-start: var(--space-2);
}
.email-agent-note p strong {
  font-weight: 600;
}
.email-agent-note__review {
  display: block;
  margin-block-start: var(--space-3);
  color: var(--text-m);
  font-size: 0.75rem;
}
.email-message-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.email-message-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-3) var(--space-6);
}
.email-message-list li + li {
  border-top: 1px solid var(--border);
}
.email-message-list li > div {
  display: grid;
  gap: var(--space-1);
  min-width: 0;
}
.email-message-list strong {
  font-size: var(--email-small);
  font-weight: 600;
}
.email-message-list li > div > span {
  color: var(--text-m);
  font-size: 0.75rem;
  line-height: 1.4;
}
.email-row-state {
  flex-shrink: 0;
  color: var(--text-m);
  font-size: 0.75rem;
}
.email-scenario__caption {
  padding-block-start: var(--space-6);
  min-height: 136px;
}
.email-scenario__caption h2 {
  font: 600 1.0625rem/1.4 var(--email-font);
}
.email-scenario__caption p {
  margin-block-start: var(--space-2);
  color: var(--text-m);
  font-size: 0.9375rem;
  line-height: 1.55;
  max-width: 62ch;
}

.email-difference {
  padding-block: var(--email-section-space);
  border-block-start: 1px solid var(--border-strong);
}
.email-section-heading {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-8);
  align-items: start;
  margin-block-end: var(--space-12);
}
.email-page .email-section-heading h2,
.email-foundation h2 {
  font: 400 var(--email-heading)/1.1 var(--email-font);
  letter-spacing: -0.035em;
}
.email-principles {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-10);
}
.email-principles > div {
  border-block-start: 1px solid var(--border);
  padding-block-start: var(--space-4);
}
.email-number {
  font-size: var(--email-small);
  color: var(--text-m);
}
.email-principles h3 {
  margin-block: var(--space-4) var(--space-3);
  font: 600 1.25rem/1.3 var(--email-font);
}
.email-principles p {
  color: var(--text-m);
  font: 400 1rem/1.65 var(--email-font);
}
.email-foundation {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  padding-block: var(--email-section-space) calc(var(--email-section-space) + var(--space-8));
  border-block-start: 1px solid var(--border-strong);
}
.email-foundation__copy > p {
  margin-block-end: var(--space-6);
  max-width: 50ch;
  color: var(--text-m);
  font: 400 var(--email-body)/1.65 var(--email-font);
}
.email-foundation__copy strong {
  color: var(--foreground);
  font-weight: 600;
}
.email-foundation__copy .email-availability {
  font-size: 0.9375rem;
  padding-block-start: var(--space-6);
  border-block-start: 1px solid var(--border);
}

@media (width < 64rem) {
  .email-hero {
    grid-template-columns: 1fr;
    gap: var(--space-12);
    padding-block-start: var(--space-8);
  }
  .email-intro {
    padding-block-start: 0;
  }
  .email-intro h1 {
    max-width: 15ch;
  }
  .email-body {
    max-width: 55ch;
  }
  .email-demo {
    width: min(100%, 660px);
  }
  .email-scenario__caption {
    min-height: 0;
  }
  .email-section-heading {
    grid-template-columns: 1fr;
    gap: var(--space-2);
  }
  .email-foundation {
    gap: var(--space-8);
  }
}

@media (width < 40rem) {
  .email-rail {
    width: calc(100% - var(--space-8));
  }
  .email-intro h1 {
    font-size: clamp(2.75rem, 12vw, 3.5rem);
  }
  .email-principles,
  .email-foundation {
    grid-template-columns: 1fr;
  }
  .email-principles {
    gap: var(--space-8);
  }
  .email-inbox__bar,
  .email-inbox__heading,
  .email-context,
  .email-message,
  .email-message-list li {
    padding-inline: var(--space-4);
  }
  .email-inbox__heading {
    align-items: start;
  }
  .email-inbox__heading > span {
    max-width: 10ch;
    text-align: end;
  }
  .email-inbox__agent {
    font-size: 0.75rem;
  }
  .email-message__meta {
    align-items: start;
  }
  .email-signal {
    text-align: end;
  }
  .email-agent-note {
    padding-inline: var(--space-3);
  }
}

@supports not selector(:has(*)) {
  .email-role-picker {
    display: none;
  }
  .email-scenario {
    display: block;
    margin-block-end: var(--space-8);
  }
}