/* Hallmark · genre: atmospheric · tone: dark technical practical · anchor: cyan · macrostructure: Workbench · theme: Midnight · enrichment: none · nav: N4 · footer: Ft5 · contrast: pass (40–41) · slop: pass (42–45) · honest: pass (46) · chrome: pass (47) · tokens: pass (48) · responsive: pass (49) · icons: pass (30) · mobile: pass (34, 49, 50–57) */
/* Hallmark · pre-emit critique: P4 H5 E4 S5 R5 V4 */
html,
body {
  overflow-x: clip;
}

body.site-nav-open {
  overflow: hidden;
  overscroll-behavior: none;
}

.skip-link {
  position: fixed;
  inset-block-start: var(--space-sm);
  inset-inline-start: var(--space-sm);
  z-index: var(--z-tooltip);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  background: var(--color-accent);
  color: var(--color-accent-ink);
  font-weight: 700;
  text-decoration: none;
  transform: translateY(calc(-100% - var(--space-xl)));
}

.skip-link:focus {
  transform: translateY(0);
}

.site-nav-section {
  display: grid;
  gap: var(--space-sm);
}

.site-nav-heading {
  margin: 0;
  color: var(--color-muted);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
}

.site-nav-list {
  display: grid;
  gap: var(--space-xs);
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 46px;
  padding-inline: var(--space-md);
  border: var(--rule-hair) solid var(--color-rule-soft);
  border-radius: var(--radius-sm);
  background: var(--color-paper-2);
  color: var(--color-ink);
  font-size: var(--text-base);
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color var(--dur-short) var(--ease-out),
    transform var(--dur-micro) var(--ease-out);
}

.site-nav-link::after {
  content: "→";
  color: var(--color-accent);
}

.site-nav-link[aria-current="page"] {
  border-color: var(--color-accent);
  background: var(--color-accent-soft);
}

.site-nav-link:focus-visible,
.site-text-link:focus-visible,
.site-footer a:focus-visible,
.site-menu-toggle:focus-visible,
.site-menu-close:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 3px;
}

.site-nav-link:active,
.site-menu-toggle:active,
.site-menu-close:active {
  transform: translateY(1px);
}


.site-text-link:active,
.site-footer a:active {
  color: var(--color-ink);
  text-decoration-color: var(--color-accent);
}

.site-nav-link[aria-disabled="true"],
.site-text-link[aria-disabled="true"],
.site-footer a[aria-disabled="true"],
.site-menu-toggle:disabled,
.site-menu-close:disabled {
  cursor: not-allowed;
  opacity: 0.55;
  pointer-events: none;
}
.site-text-link {
  color: var(--color-accent);
  font-weight: 700;
  text-decoration-color: var(--color-rule);
  text-underline-offset: 0.3em;
  white-space: nowrap;
}

.site-footer {
  width: min(100%, 660px);
  margin: var(--space-lg) auto 0;
  padding-block: var(--space-sm);
  border-block-start: var(--rule-hair) solid var(--color-rule-soft);
  color: var(--color-muted);
}

.site-footer-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0 var(--space-sm);
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-footer a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--color-neutral);
  font-size: var(--text-xs);
  font-weight: 700;
  line-height: 1;
  text-decoration-color: var(--color-rule);
  text-underline-offset: 0.3em;
  white-space: nowrap;
}

.content-page {
  min-height: 100vh;
  margin: 0;
  padding: 0;
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
}

.content-page .site-footer a {
  font-size: var(--text-xs);
}

.content-page *,
.content-page *::before,
.content-page *::after {
  box-sizing: border-box;
}

.content-page button,
.content-page a {
  font: inherit;
}

.content-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(100%, 840px);
  margin-inline: auto;
  padding: var(--space-md) max(var(--space-md), env(safe-area-inset-left));
}

.site-wordmark {
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.02em;
  text-decoration: none;
  white-space: nowrap;
}

.site-menu-toggle,
.site-menu-close {
  display: inline-grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border: var(--rule-hair) solid var(--color-rule);
  border-radius: var(--radius-md);
  background: var(--color-paper-2);
  color: var(--color-ink);
  cursor: pointer;
  transition: background-color var(--dur-short) var(--ease-out),
    transform var(--dur-micro) var(--ease-out);
}

.site-menu-bars {
  display: grid;
  gap: var(--space-2xs);
}

.site-menu-bars span {
  display: block;
  width: 20px;
  height: 2px;
  border-radius: 1px;
  background: currentColor;
}

.site-menu-overlay {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  background: color-mix(in oklch, var(--color-overlay) 78%, transparent);
  opacity: 0;
  transition: opacity var(--dur-long) var(--ease-out);
}

.site-menu-overlay[hidden] {
  display: none;
}

.site-nav-drawer {
  position: fixed;
  inset-block: 0;
  inset-inline-end: 0;
  z-index: calc(var(--z-modal) + 1);
  width: min(90%, 380px);
  padding: max(var(--space-lg), env(safe-area-inset-top)) var(--space-lg)
    max(var(--space-lg), env(safe-area-inset-bottom));
  overflow-y: auto;
  border-inline-start: var(--rule-hair) solid var(--color-rule);
  background: var(--color-paper-2);
  transform: translateX(100%);
  transition: transform var(--dur-long) var(--ease-out);
}

body.site-nav-open .site-menu-overlay {
  opacity: 1;
}

body.site-nav-open .site-nav-drawer {
  transform: translateX(0);
}

.site-menu-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  margin-block-end: var(--space-lg);
}

.site-menu-title {
  font-family: var(--font-display);
  font-size: var(--text-md);
  line-height: 1.2;
}

.article-shell {
  width: min(100%, 760px);
  margin-inline: auto;
  padding: var(--space-xl) max(var(--space-md), env(safe-area-inset-left)) var(--space-2xl);
}

.article-lead {
  display: grid;
  gap: var(--space-md);
  padding-block-end: var(--space-xl);
  border-block-end: var(--rule-hair) solid var(--color-rule-soft);
}

.article-lead h1 {
  min-width: 0;
  margin: 0;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: var(--text-display);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: -0.04em;
  overflow-wrap: anywhere;
}

.article-lead p {
  max-width: 62ch;
  margin: 0;
  color: var(--color-neutral);
  font-size: var(--text-md);
  line-height: 1.7;
}

.article-section {
  display: grid;
  gap: var(--space-md);
  padding-block-start: var(--space-xl);
}

.article-section + .article-section {
  margin-block-start: var(--space-lg);
}

.article-section h2 {
  margin: 0;
  color: var(--color-ink);
  font-size: var(--text-lg);
  line-height: 1.35;
}

.article-section h3 {
  margin: var(--space-sm) 0 0;
  color: var(--color-ink);
  font-size: var(--text-md);
  line-height: 1.4;
}

.article-section p,
.article-section li,
.article-section dd {
  max-width: 68ch;
  margin: 0;
  color: var(--color-neutral);
  line-height: 1.85;
}

.article-section ul,
.article-section ol {
  display: grid;
  gap: var(--space-sm);
  margin: 0;
  padding-inline-start: 1.4rem;
}

.article-section strong {
  color: var(--color-ink);
}

.info-callout {
  padding: var(--space-md);
  border: var(--rule-hair) solid var(--color-rule);
  border-radius: var(--radius-md);
  background: var(--color-paper-2);
  color: var(--color-neutral);
  line-height: 1.75;
}

.step-list {
  display: grid;
  gap: var(--space-lg);
  padding: 0;
  list-style: none;
  counter-reset: guide-step;
}

.step-list > li {
  display: grid;
  grid-template-columns: 2.5rem minmax(0, 1fr);
  gap: var(--space-md);
  counter-increment: guide-step;
}

.step-list > li::before {
  content: counter(guide-step, decimal-leading-zero);
  color: var(--color-accent);
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.85;
}

.term-list,
.faq-list {
  display: grid;
  gap: 0;
  margin: 0;
}

.term-list > div,
.faq-list > div {
  display: grid;
  gap: var(--space-sm);
  padding-block: var(--space-lg);
  border-block-end: var(--rule-hair) solid var(--color-rule-soft);
}

.term-list dt,
.faq-list dt {
  color: var(--color-ink);
  font-weight: 700;
  line-height: 1.5;
}

.term-list dd,
.faq-list dd {
  margin: 0;
}

.page-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm) var(--space-lg);
  padding: 0;
  list-style: none;
}

.updated-date {
  color: var(--color-muted);
  font-size: var(--text-sm);
}

.footer-disclaimer {
  display: block;
  margin-block-start: var(--space-2xs);
}

body.menu-open {
  overflow: hidden;
  overscroll-behavior: none;
}

.menu-toggle,
.drawer-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 54px;
  height: 54px;
  border: var(--rule-hair) solid var(--color-rule);
  border-radius: var(--radius-lg);
  background: color-mix(in oklch, var(--color-paper-2) 90%, transparent);
  color: var(--color-ink);
  cursor: pointer;
  transition: background-color var(--dur-short) var(--ease-out),
    border-color var(--dur-short) var(--ease-out),
    transform var(--dur-micro) var(--ease-out);
}

.menu-toggle {
  position: absolute;
  inset-block-start: 0;
  inset-inline-end: 0;
  backdrop-filter: blur(18px);
}

.content-header .menu-toggle {
  position: static;
}

.menu-toggle-bars {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-xs);
}

.menu-toggle-bar {
  display: block;
  height: 3px;
  border-radius: var(--radius-pill);
  background: currentColor;
  transition: transform var(--dur-short) var(--ease-out),
    opacity var(--dur-short) var(--ease-out);
}

.menu-toggle-bar:nth-child(1) { width: 20px; }
.menu-toggle-bar:nth-child(2) { width: 20px; }
.menu-toggle-bar:nth-child(3) { width: 20px; }

body.menu-open .menu-toggle-bar:nth-child(1) {
  width: 20px;
  transform: translateY(7px) rotate(45deg);
}

body.menu-open .menu-toggle-bar:nth-child(2) { opacity: 0; }

body.menu-open .menu-toggle-bar:nth-child(3) {
  width: 20px;
  transform: translateY(-7px) rotate(-45deg);
}

.menu-overlay {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  background: color-mix(in oklch, var(--color-overlay) 72%, transparent);
  backdrop-filter: blur(6px);
}

.settings-drawer {
  position: fixed;
  inset: 0 0 0 auto;
  z-index: calc(var(--z-modal) + 1);
  width: min(100%, 420px);
  height: 100dvh;
  max-height: 100dvh;
  pointer-events: none;
}


.settings-drawer *,
.settings-drawer *::before,
.settings-drawer *::after {
  box-sizing: border-box;
}
.drawer-panel {
  width: min(100%, 420px);
  height: 100dvh;
  max-height: 100dvh;
  margin-inline-start: auto;
  padding: var(--space-lg) var(--space-md)
    max(var(--space-xl), env(safe-area-inset-bottom));
  overflow-y: auto;
  overscroll-behavior: contain;
  border-inline-start: var(--rule-hair) solid var(--color-rule);
  background:
    radial-gradient(circle at top right, var(--color-accent-soft), transparent 34%),
    linear-gradient(180deg, var(--color-paper-2), var(--color-paper));
  color: var(--color-ink);
  box-shadow: -18px 0 40px color-mix(in oklch, var(--color-overlay) 42%, transparent);
  transform: translateX(100%);
  transition: transform var(--dur-long) var(--ease-out);
  -webkit-overflow-scrolling: touch;
  touch-action: pan-y;
}

body.menu-open .settings-drawer { pointer-events: auto; }
body.menu-open .drawer-panel { transform: translateX(0); }

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  margin-block-end: var(--space-lg);
}

.drawer-kicker {
  color: var(--color-accent);
  font-size: var(--text-xs);
  font-weight: 900;
  letter-spacing: 0.18em;
}

.drawer-title {
  margin: 0;
  margin-block-start: var(--space-2xs);
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: 900;
  line-height: 1.2;
}

.drawer-close {
  width: 52px;
  height: 52px;
  font-size: 1.7rem;
  line-height: 1;
}

.drawer-stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.settings-card,
.support-note {
  padding: var(--space-sm);
  border: var(--rule-hair) solid var(--color-rule-soft);
  border-radius: var(--radius-lg);
  background: var(--color-paper-3);
  color: var(--color-ink);
}

.settings-card-title,
.support-title {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
}

.card-marker {
  width: 5px;
  min-width: 5px;
  height: 46px;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
}

.support-note .card-marker { height: 42px; }

.settings-card h3,
.support-note h3 {
  margin: 0;
  font-size: var(--text-base);
  font-weight: 900;
  line-height: 1.3;
}

.settings-description,
.support-description {
  margin-block-start: var(--space-xs);
  color: var(--color-muted);
  margin: 0;
  font-size: var(--text-xs);
  line-height: 1.55;
}

.toggle-card {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: space-between;
  gap: var(--space-sm);
  margin-block-start: var(--space-sm);
  padding: var(--space-sm);
  border: var(--rule-hair) solid var(--color-rule-soft);
  border-radius: var(--radius-md);
  background: var(--color-paper-2);
  cursor: pointer;
  transition: background-color var(--dur-short) var(--ease-out),
    border-color var(--dur-short) var(--ease-out);
}

.toggle-copy {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xs);
  min-width: 0;
}

.toggle-copy strong {
  font-size: var(--text-sm);
  font-weight: 900;
}

.toggle-copy span {
  color: var(--color-muted);
  font-size: var(--text-xs);
  line-height: 1.45;
}

.switch {
  position: relative;
  width: 104px;
  height: 42px;
  flex-shrink: 0;
  align-self: flex-end;
}

.switch input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.switch-track {
  position: absolute;
  inset: 0;
  border: var(--rule-hair) solid var(--color-rule);
  border-radius: var(--radius-pill);
  background: var(--color-rule-soft);
  transition: background-color var(--dur-short) var(--ease-out),
    border-color var(--dur-short) var(--ease-out);
}

.switch-track::after {
  content: "";
  position: absolute;
  inset-block-start: 5px;
  inset-inline-start: 6px;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--color-neutral);
  transition: background-color var(--dur-short) var(--ease-out),
    transform var(--dur-short) var(--ease-out);
}

.switch input:checked + .switch-track {
  border-color: var(--color-accent);
  background: var(--color-accent);
}

.switch input:checked + .switch-track::after {
  background: var(--color-accent-ink);
  transform: translateX(60px);
}

.switch input:focus-visible + .switch-track {
  outline: 2px solid var(--color-focus);
  outline-offset: 3px;
}

.permission-note {
  min-height: 2.8em;
  margin-block-start: var(--space-xs);
  font-size: var(--text-xs);
  line-height: 1.7;
}

.permission-note.is-ok { color: var(--color-success); }
.permission-note.is-warn { color: var(--color-neutral); }
.permission-note.is-error { color: var(--color-error); }

.support-link {
  display: block;
  color: inherit;
  text-decoration: none;
  transition: background-color var(--dur-short) var(--ease-out),
    border-color var(--dur-short) var(--ease-out),
    transform var(--dur-micro) var(--ease-out);
}

.support-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 88px;
  gap: var(--space-sm);
}

.support-card h3 { color: var(--color-accent); }

.support-action {
  flex-shrink: 0;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-pill);
  background: var(--color-accent-soft);
  color: var(--color-accent);
  font-size: var(--text-xs);
  font-weight: 900;
  letter-spacing: 0.08em;
}

.menu-toggle:focus-visible,
.drawer-close:focus-visible,
.switch input:focus-visible + .switch-track,
.support-link:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 3px;
}

.menu-toggle:active,
.drawer-close:active,
.support-link:active { transform: translateY(1px); }

.menu-toggle:disabled,
.drawer-close:disabled,
.switch input:disabled,
.support-link[aria-disabled="true"] {
  cursor: not-allowed;
  opacity: 0.55;
}

@media (hover: hover) and (pointer: fine) {
  .menu-toggle:hover,
  .drawer-close:hover,
  .support-link:hover {
    border-color: var(--color-accent);
    background: var(--color-paper-3);
    transform: translateY(-1px);
  }

  .toggle-card:hover,
  .toggle-card:focus-within {
    border-color: var(--color-accent);
    background: var(--color-paper-3);
  }
}

@media (min-width: 35rem) {
  .settings-drawer,
  .drawer-panel {
    width: min(92%, 420px);
  }

  .drawer-header {
    margin-block-end: var(--space-md);
  }

  .toggle-card {
    flex-direction: row;
    align-items: center;
  }

  .switch {
    align-self: auto;
  }
}
@media (min-width: 45rem) {
  .menu-toggle {
    width: 58px;
    height: 58px;
  }
}
@media (hover: hover) and (pointer: fine) {
  .site-nav-link:hover,
  .site-menu-toggle:hover,
  .site-menu-close:hover {
    background: var(--color-paper-3);
    transform: translateY(-1px);
  }

  .site-text-link:hover,
  .site-footer a:hover {
    color: var(--color-ink);
    text-decoration-color: var(--color-accent);
  }
}

@media (min-width: 40rem) {
  .article-shell {
    padding-block-start: var(--space-2xl);
  }

  .article-lead {
    padding-block-end: var(--space-2xl);
  }

  .article-section {
    padding-block-start: var(--space-2xl);
  }

}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 150ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 150ms !important;
  }
}