/* Hallmark · companion surface: Butter-style system configuration · shared studied-DNA tokens */

.settings-page {
  background: var(--color-page);
}

.settings-header-nav {
  position: absolute;
}

.settings-main {
  width: min(100%, var(--content-max));
  margin-inline: auto;
  padding: calc(var(--nav-height) + var(--space-3xl)) var(--page-gutter) var(--space-4xl);
}

.settings-hero {
  max-width: 76rem;
  margin-inline: auto;
  padding-block: var(--space-xl) var(--space-4xl);
  text-align: center;
}

.settings-hero h1 {
  max-width: none;
  min-width: 0;
  margin: var(--space-md) 0 0;
  overflow-wrap: anywhere;
  font-family: var(--font-display);
  font-size: clamp(3.2rem, 8vw, 7rem);
  font-weight: 400;
  letter-spacing: -0.045em;
  line-height: 0.99;
}

.settings-hero > p:last-child {
  max-width: 60ch;
  margin: var(--space-xl) auto 0;
  color: var(--color-muted);
  font-size: clamp(1rem, 2vw, 1.3rem);
}

.settings-runtime-note {
  display: flex;
  max-width: 72rem;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-xl);
  margin: 0 auto var(--space-2xl);
  padding: var(--space-lg);
  border: 1px solid var(--color-rule-dark);
  border-radius: var(--radius-lg);
  background: var(--color-ink);
  color: var(--color-paper);
  box-shadow: var(--shadow-studio);
}

.settings-runtime-note[hidden] {
  display: none;
}

.settings-runtime-note strong {
  display: block;
  margin-block-end: var(--space-xs);
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: 500;
}

.settings-runtime-note p {
  max-width: 64ch;
  margin: 0;
  color: var(--color-paper-3);
  font-size: var(--text-sm);
}

.runtime-badges {
  display: flex;
  flex-shrink: 0;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: var(--space-xs);
}

.runtime-badges span {
  display: inline-flex;
  min-height: 2.25rem;
  align-items: center;
  padding-inline: var(--space-sm);
  border: 1px solid var(--color-rule-dark);
  border-radius: var(--radius-pill);
  background: var(--color-ink-2);
  color: var(--color-paper);
  font-size: var(--text-xs);
  white-space: nowrap;
}

.settings-layout {
  display: grid;
  gap: var(--space-lg);
}

.category-nav {
  display: flex;
  gap: var(--space-xs);
  padding: var(--space-xs);
  overflow-x: auto;
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-nav);
  background: var(--color-float-strong);
  box-shadow: var(--shadow-float);
  scrollbar-width: thin;
}

.category-nav a {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  padding-inline: var(--space-md);
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  color: var(--color-muted);
  font-size: var(--text-sm);
  font-weight: 600;
  line-height: 1;
  text-decoration: none;
}

.category-nav a[aria-current="location"] {
  border-color: var(--color-ink);
  background: var(--color-ink);
  color: var(--color-paper);
}

.settings-form {
  display: grid;
  min-width: 0;
  gap: var(--space-lg);
}

.settings-status {
  margin-block-end: var(--space-lg);
  padding: var(--space-md);
  border: 1px solid var(--color-success);
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--color-accent) 18%, var(--color-paper));
  color: var(--color-ink);
  font-size: var(--text-sm);
}

.settings-status.error {
  border-color: var(--color-error);
  background: color-mix(in srgb, var(--color-error) 9%, var(--color-paper));
}

.settings-section {
  scroll-margin-block-start: calc(var(--nav-height) + var(--space-xl));
  padding: var(--space-xl);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-lg);
  background: var(--color-paper);
}

.settings-section:first-of-type {
  padding-block-start: var(--space-xl);
  border: 1px solid var(--color-rule);
}

.settings-section__head {
  display: block;
  margin-block-end: var(--space-xl);
}

.settings-section__head > span {
  display: block;
  margin-block-end: var(--space-sm);
  color: var(--color-accent);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
}

.settings-section__head h2 {
  min-width: 0;
  margin: 0;
  overflow-wrap: anywhere;
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 500;
  letter-spacing: -0.025em;
  line-height: 1.05;
}

.settings-section__head p {
  max-width: 58ch;
  margin: var(--space-sm) 0 0;
  color: var(--color-muted);
}

.settings-grid {
  display: grid;
  gap: var(--space-lg);
}

.settings-field {
  display: grid;
  min-width: 0;
  gap: var(--space-xs);
}

.settings-field label {
  color: var(--color-ink-2);
  font-size: var(--text-sm);
  font-weight: 600;
}

.settings-field input,
.settings-field textarea,
.settings-field select {
  background: var(--color-page);
  font-size: var(--text-sm);
}

.settings-field input[type="password"],
.settings-field input[data-mono="true"],
.settings-field select[data-mono="true"] {
  font-family: var(--font-display);
  font-size: var(--text-xs);
}

.field-note {
  min-height: 1lh;
  color: var(--color-muted);
  font-size: var(--text-xs);
  line-height: 1.5;
}

.keyword-editor {
  display: grid;
  gap: var(--space-lg);
}

.keywords-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.keyword-tag {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  gap: var(--space-xs);
  padding-inline: var(--space-sm);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-sm);
  background: var(--color-paper-2);
  color: var(--color-ink-2);
  font-size: var(--text-sm);
}

.keyword-tag button {
  display: inline-grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  border-radius: 50%;
  background: var(--color-paper);
  color: var(--color-muted);
  cursor: pointer;
}

.settings-actions {
  position: static;
  z-index: var(--z-sticky);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-md);
  margin-block-start: var(--space-xl);
  padding: var(--space-md);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-md);
  background: var(--color-float-strong);
  box-shadow: var(--shadow-float);
  backdrop-filter: blur(1rem);
}

.settings-actions p {
  margin: 0;
  color: var(--color-muted);
  font-size: var(--text-sm);
}

.settings-actions > div {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.settings-actions .btn-primary {
  min-width: 9rem;
}

@media (hover: hover) and (pointer: fine) {
  .category-nav a:hover {
    color: var(--color-ink);
  }

  .keyword-tag button:hover {
    background: var(--color-accent);
    color: var(--color-accent-ink);
  }
}

@media (min-width: 40rem) {
  .settings-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .settings-field--wide {
    grid-column: 1 / -1;
  }
}

@media (max-width: 48rem) {
  .settings-runtime-note {
    align-items: stretch;
    flex-direction: column;
    margin-block-end: var(--space-xl);
  }

  .runtime-badges {
    justify-content: flex-start;
  }
}

@media (min-width: 60rem) {
  .settings-layout {
    grid-template-columns: 12rem minmax(0, 1fr);
    align-items: start;
    gap: var(--space-3xl);
  }

  .category-nav {
    position: sticky;
    inset-block-start: calc(var(--nav-height) + var(--space-xl));
    display: grid;
    padding: var(--space-xs);
    overflow: visible;
  }

  .category-nav a {
    justify-content: flex-start;
    border-color: transparent;
  }

  .category-nav a[aria-current="location"] {
    border-color: var(--color-ink);
  }

  .settings-section {
    padding: var(--space-2xl);
  }

}

@media (prefers-reduced-motion: reduce) {
  .settings-section,
  .settings-hero,
  .settings-actions {
    opacity: 1 !important;
    transform: none !important;
  }
}