/* Public shell styles for lightweight auth pages (S-072) */

.public-shell {
  min-height: 100vh;
  background:
    radial-gradient(circle at top, var(--color-primary-50) 0%, transparent 45%),
    linear-gradient(180deg, var(--color-neutral-50) 0%, var(--color-neutral-100) 100%);
}

[data-theme="dark"] .public-shell {
  background:
    radial-gradient(circle at top, var(--color-primary-100) 0%, transparent 40%),
    linear-gradient(180deg, var(--color-neutral-0) 0%, var(--color-neutral-50) 100%);
}

.public-shell__page {
  display: flex;
  min-height: 100vh;
  flex-direction: column;
}

.public-shell__header,
.public-shell__footer {
  width: min(100%, 72rem);
  margin: 0 auto;
  padding: var(--space-4) var(--space-4) 0;
}

.public-shell__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.public-shell__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-neutral-900);
  text-decoration: none;
}

.public-shell__brand:hover .public-shell__brand-name,
.public-shell__brand:focus-visible .public-shell__brand-name {
  color: var(--color-primary-600);
}

.public-shell__brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: var(--radius-lg);
  background: var(--color-primary-600);
  color: var(--color-neutral-0);
  font-size: var(--text-xl);
  box-shadow: var(--shadow-md);
}

.public-shell__brand-copy {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.public-shell__brand-name {
  font-size: var(--text-lg);
  font-weight: 700;
  transition: color var(--duration-fast) var(--ease-out);
}

.public-shell__brand-tagline {
  color: var(--color-neutral-600);
  font-size: var(--text-sm);
}

.public-shell__main {
  width: min(100%, 72rem);
  margin: 0 auto;
  padding: var(--space-8) var(--space-4) var(--space-10);
  flex: 1;
  display: flex;
  align-items: center;
}

.public-shell__messages {
  display: grid;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.public-shell__message {
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-neutral-200);
  background: var(--color-neutral-0);
  box-shadow: var(--shadow-sm);
  padding: var(--space-3) var(--space-4);
  color: var(--color-neutral-700);
}

.public-shell__message--success {
  border-color: var(--color-success-100);
  background: var(--color-success-50);
  color: var(--color-success-700);
}

.public-shell__message--warning {
  border-color: var(--color-warning-100);
  background: var(--color-warning-50);
  color: var(--color-warning-700);
}

.public-shell__message--error {
  border-color: var(--color-error-100);
  background: var(--color-error-50);
  color: var(--color-error-700);
}

.public-auth {
  display: grid;
  gap: var(--space-8);
  width: 100%;
  align-items: center;
}

.public-auth__intro {
  display: grid;
  gap: var(--space-4);
}

.public-auth__eyebrow {
  justify-self: start;
}

.public-auth__title {
  margin: 0;
  font-size: clamp(var(--text-3xl), 5vw, var(--text-4xl));
  line-height: 1.1;
  color: var(--color-neutral-900);
}

.public-auth__lead {
  margin: 0;
  max-width: 34rem;
  color: var(--color-neutral-600);
  font-size: var(--text-lg);
}

.public-auth__highlights {
  list-style: none;
  display: grid;
  gap: var(--space-3);
  margin: 0;
  padding: 0;
}

.public-auth__highlights li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  color: var(--color-neutral-700);
}

.public-auth__highlight-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2rem;
  height: 2rem;
  border-radius: var(--radius-full);
  background: var(--color-primary-100);
  color: var(--color-primary-700);
}

.public-auth__card {
  width: 100%;
  max-width: 30rem;
  margin-left: auto;
  padding: var(--space-8);
  background: color-mix(in srgb, var(--color-neutral-0) 92%, transparent);
  backdrop-filter: blur(10px);
}

.public-auth__card-header {
  margin-bottom: var(--space-6);
}

.public-auth__card-title {
  margin: 0 0 var(--space-2);
  color: var(--color-neutral-900);
  font-size: var(--text-2xl);
}

.public-auth__card-copy {
  margin: 0;
  color: var(--color-neutral-600);
}

.public-auth__form {
  display: grid;
  gap: var(--space-4);
}

.public-auth__error {
  border-radius: var(--radius-md);
  border: 1px solid var(--color-error-100);
  background: var(--color-error-50);
  color: var(--color-error-700);
  padding: var(--space-3) var(--space-4);
}

.public-auth__submit {
  width: 100%;
  min-height: 3rem;
}

.public-auth__links {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-5);
}

.public-auth__links a,
.public-shell__footer a {
  color: var(--color-primary-600);
  text-decoration: none;
}

.public-auth__links a:hover,
.public-auth__links a:focus-visible,
.public-shell__footer a:hover,
.public-shell__footer a:focus-visible {
  text-decoration: underline;
}

.public-shell__footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-3);
  padding: 0 var(--space-4) var(--space-6);
  color: var(--color-neutral-500);
  font-size: var(--text-sm);
}

.public-shell__footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

@media (min-width: 960px) {
  .public-auth {
    grid-template-columns: minmax(0, 1.1fr) minmax(20rem, 30rem);
  }
}

@media (max-width: 959px) {
  .public-shell__main {
    align-items: stretch;
  }

  .public-auth__card {
    margin-left: 0;
  }
}

@media (max-width: 640px) {
  .public-shell__header,
  .public-shell__main,
  .public-shell__footer {
    padding-left: var(--space-4);
    padding-right: var(--space-4);
  }

  .public-shell__header {
    align-items: flex-start;
  }

  .public-auth__card {
    padding: var(--space-6);
  }

  .public-shell__footer {
    flex-direction: column;
    align-items: flex-start;
  }
}