/*
 * Public editorial surface.
 *
 * Landing, account entry, and legal pages share the same warm paper, restrained
 * depth, typography, and spacing as the authenticated Momentum workspace.
 */

.mg-public-page {
  width: min(100%, 1180px);
  min-width: 0;
  margin-inline: auto;
  padding: clamp(var(--mg-space-8), 6vw, var(--mg-space-16)) var(--mg-page-gutter) var(--mg-space-20);
  color: var(--mg-text-primary);
  font-family: var(--mg-font-sans);
  font-size: var(--mg-font-size-body);
  line-height: var(--mg-line-height-body);
}

.mg-public-page :is(h1, h2) {
  color: var(--mg-text-primary);
  font-family: var(--mg-font-display);
  font-weight: var(--mg-font-weight-regular);
  letter-spacing: var(--mg-letter-spacing-tight);
}

.mg-public-page h3 {
  color: var(--mg-text-primary);
  font-family: var(--mg-font-sans);
  font-weight: var(--mg-font-weight-semibold);
}

.mg-public-page .eyebrow {
  color: var(--mg-text-tertiary);
  font-family: var(--mg-font-sans);
  font-size: var(--mg-font-size-micro);
  font-weight: var(--mg-font-weight-medium);
  letter-spacing: 0.04em;
  text-transform: none;
}

/* Heatmap buttons keep the square geometry defined by .day-cell in app.css. */
.mg-public-page :is(.button, button):not(.day-cell) {
  min-height: var(--mg-control-height);
  border-radius: var(--mg-radius-md);
  box-shadow: none;
  font-family: var(--mg-font-sans);
  font-size: var(--mg-font-size-body-small);
  font-weight: var(--mg-font-weight-semibold);
  letter-spacing: 0;
}

.mg-public-page :is(.button, button):focus-visible,
.mg-public-page :is(input, select, textarea, a):focus-visible {
  outline: var(--mg-focus-width) solid var(--mg-focus-color);
  outline-offset: var(--mg-focus-offset);
}

.mg-public-page :is(.button, button).primary {
  border-color: var(--mg-text-primary);
  background: var(--mg-text-primary);
  color: var(--mg-text-inverse);
}

/* Landing */
.mg-public-landing .landing-page {
  width: 100%;
}

.mg-public-landing .landing-hero {
  min-height: min(720px, 76vh);
  grid-template-columns: minmax(0, 1.05fr) minmax(20rem, 0.95fr);
  align-items: center;
  gap: clamp(var(--mg-space-10), 7vw, var(--mg-space-20));
  padding: var(--mg-space-8) 0 var(--mg-space-16);
}

.mg-public-landing .landing-hero-copy {
  max-width: 42rem;
}

.mg-public-landing .landing-hero h1 {
  max-width: 12ch;
  margin: var(--mg-space-3) 0 var(--mg-space-6);
  font-size: clamp(3.6rem, 8vw, 6.75rem);
  line-height: 0.94;
}

.mg-public-landing .landing-hero h1 em {
  color: var(--mg-text-secondary);
  font-weight: inherit;
}

.mg-public-landing .landing-lede {
  max-width: 37rem;
  color: var(--mg-text-secondary);
  font-size: clamp(1rem, 1.8vw, 1.18rem);
  line-height: 1.65;
}

.mg-public-landing .landing-actions {
  gap: var(--mg-space-3);
  margin-top: var(--mg-space-8);
}

.mg-public-landing .landing-assurance {
  margin-top: var(--mg-space-3);
  color: var(--mg-text-tertiary);
  font-size: var(--mg-font-size-metadata);
}

.mg-public-landing .hero-preview {
  padding: var(--mg-space-6);
  border: var(--mg-border-width-hairline) solid var(--mg-border-default);
  border-radius: var(--mg-radius-lg);
  background: var(--mg-bg-surface);
  box-shadow: none;
}

.mg-public-landing .hero-preview-heading,
.mg-public-landing .hero-preview-foot {
  border-color: var(--mg-border-subtle);
}

.mg-public-landing .landing-strip {
  padding-block: var(--mg-space-8);
  border-block: var(--mg-border-width-hairline) solid var(--mg-border-subtle);
  background: transparent;
}

.mg-public-landing .landing-strip > div + div {
  border-color: var(--mg-border-subtle);
}

.mg-public-landing .landing-section {
  padding-block: var(--mg-space-20);
  border-bottom: var(--mg-border-width-hairline) solid var(--mg-border-subtle);
}

.mg-public-landing .landing-section-heading {
  align-items: end;
  gap: var(--mg-space-8);
}

.mg-public-landing .landing-section-heading h2,
.mg-public-landing .automation-showcase h2,
.mg-public-landing .landing-final-cta h2 {
  font-size: clamp(2.25rem, 5vw, 4rem);
  line-height: 1.04;
}

.mg-public-landing .landing-section-heading > p {
  max-width: 31rem;
  color: var(--mg-text-secondary);
  line-height: 1.65;
}

.mg-public-landing .demo-habit-card {
  border-color: var(--mg-border-subtle);
  border-radius: var(--mg-radius-md);
  background: var(--mg-bg-surface);
  box-shadow: none;
}

.mg-public-landing .landing-feature-grid {
  gap: 0;
  border-block: var(--mg-border-width-hairline) solid var(--mg-border-subtle);
}

.mg-public-landing .landing-feature-grid article {
  padding: var(--mg-space-8);
  border: 0;
  background: transparent;
}

.mg-public-landing .landing-feature-grid article + article {
  border-left: var(--mg-border-width-hairline) solid var(--mg-border-subtle);
}

.mg-public-landing .automation-showcase {
  border: 0;
  border-bottom: var(--mg-border-width-hairline) solid var(--mg-border-subtle);
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.mg-public-landing .automation-flow {
  border-color: var(--mg-border-default);
  border-radius: var(--mg-radius-md);
  background: var(--mg-bg-surface-subtle);
  box-shadow: none;
}

.mg-public-landing .landing-final-cta {
  margin-top: var(--mg-space-16);
  padding: var(--mg-space-16) 0 0;
  border: 0;
  background: transparent;
  box-shadow: none;
  text-align: left;
}

/* Account entry and verification */
.mg-public-auth {
  width: min(100%, 48rem);
  min-height: calc(100vh - 18rem);
  display: grid;
  align-items: center;
}

.mg-public-auth .narrow-card {
  width: 100%;
  max-width: 42rem;
  margin: 0 auto;
  padding: clamp(var(--mg-space-6), 5vw, var(--mg-space-10));
  border: var(--mg-border-width-hairline) solid var(--mg-border-subtle);
  border-radius: var(--mg-radius-lg);
  background: var(--mg-bg-surface);
  box-shadow: none;
}

.mg-public-auth .system-card-heading {
  margin: 0 0 var(--mg-space-6);
  padding: 0 0 var(--mg-space-5);
  border-bottom: var(--mg-border-width-hairline) solid var(--mg-border-subtle);
}

.mg-public-auth .system-card-heading h1,
.mg-public-auth .narrow-card .system-card-heading h1 {
  margin: 0;
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  line-height: 1;
}

.mg-public-auth .system-page-symbol {
  width: auto;
  height: auto;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--mg-text-tertiary);
  font-size: 1rem;
}

.mg-public-auth .stacked-form {
  display: grid;
  gap: var(--mg-space-4);
  margin-block: var(--mg-space-6);
}

.mg-public-auth .stacked-form > div {
  margin: 0;
}

.mg-public-auth .stacked-form label {
  color: var(--mg-text-primary);
  font-size: var(--mg-font-size-body-small);
  font-weight: var(--mg-font-weight-medium);
  letter-spacing: 0;
  text-transform: none;
}

.mg-public-auth :is(input, select, textarea) {
  width: 100%;
  min-height: var(--mg-control-height);
  border-color: var(--mg-border-default);
  border-radius: var(--mg-radius-md);
  background: var(--mg-bg-surface);
  box-shadow: none;
  color: var(--mg-text-primary);
  font-family: var(--mg-font-sans);
}

.mg-public-auth .registration-verification-note {
  margin: var(--mg-space-6) 0;
  padding: var(--mg-space-5);
  border: var(--mg-border-width-hairline) solid var(--mg-border-subtle);
  border-radius: var(--mg-radius-md);
  background: var(--mg-bg-surface-subtle);
  box-shadow: none;
}

/* Legal reading pages */
.mg-public-legal {
  width: min(100%, 56rem);
}

.mg-public-legal .legal-page {
  width: 100%;
  max-width: none;
  margin: 0;
}

.mg-public-legal .page-heading {
  margin-bottom: var(--mg-space-12);
  padding-bottom: var(--mg-space-8);
  border-bottom: var(--mg-border-width-hairline) solid var(--mg-border-subtle);
}

.mg-public-legal .page-heading h1 {
  max-width: 13ch;
  margin: var(--mg-space-2) 0 var(--mg-space-3);
  font-size: clamp(3rem, 7vw, 5.5rem);
  line-height: 0.98;
}

.mg-public-legal .page-heading > p:last-child {
  color: var(--mg-text-tertiary);
  font-size: var(--mg-font-size-metadata);
}

.mg-public-legal .legal-content {
  max-width: 46rem;
  padding: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
}

.mg-public-legal .legal-content section {
  padding: var(--mg-space-8) 0;
  border-top: var(--mg-border-width-hairline) solid var(--mg-border-subtle);
}

.mg-public-legal .legal-content section:first-child {
  border-top: 0;
}

.mg-public-legal .legal-content h2 {
  margin-bottom: var(--mg-space-3);
  font-family: var(--mg-font-display);
  font-size: var(--mg-font-size-section-title);
}

.mg-public-legal .legal-content :is(p, li) {
  color: var(--mg-text-secondary);
  font-size: 1rem;
  line-height: 1.75;
}

@media (max-width: 760px) {
  .mg-public-page {
    padding-inline: var(--mg-space-5);
  }

  .mg-public-landing .landing-hero {
    min-height: 0;
    grid-template-columns: minmax(0, 1fr);
    gap: var(--mg-space-10);
  }

  .mg-public-landing .landing-hero h1 {
    font-size: clamp(3.2rem, 16vw, 5.5rem);
  }

  .mg-public-landing .landing-section-heading {
    grid-template-columns: minmax(0, 1fr);
  }

  .mg-public-landing .landing-feature-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .mg-public-landing .landing-feature-grid article + article {
    border-top: var(--mg-border-width-hairline) solid var(--mg-border-subtle);
    border-left: 0;
  }

  .mg-public-landing .landing-strip {
    grid-template-columns: minmax(0, 1fr);
  }

  .mg-public-landing .landing-strip > div + div {
    border-top: var(--mg-border-width-hairline) solid var(--mg-border-subtle);
    border-left: 0;
  }

  .mg-public-auth {
    min-height: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .mg-public-page *,
  .mg-public-page *::before,
  .mg-public-page *::after {
    scroll-behavior: auto;
    transition-duration: 0.01ms;
  }
}

@media (prefers-contrast: more) {
  .mg-public-page :is(.hero-preview, .demo-habit-card, .narrow-card),
  .mg-public-legal .legal-content section {
    border-color: var(--mg-border-strong);
  }
}