/* Hallmark · macrostructure: Index-First · genre: modern-minimal · theme: Cobalt/Huiyao · enrichment: none · nav: N13 · footer: Ft2
 * audience: battery-line engineers and procurement · use: evaluate then download · tone: technical/austere
 * pre-emit critique: P5 H5 E4 S5 R5 V4
 * contrast: pass (40–41) · slop: 58/58 pass · honest: pass (46) · chrome: pass (47) · tokens: pass (48)
 * mobile: pass (34, 49, 50–57) at 320/375/414/768 px
 */
@import url("./tokens.css");

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

html,
body {
  overflow-x: clip;
}

html {
  background: var(--color-paper);
  color: var(--color-ink);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 20rem;
  background: var(--color-paper);
  color: var(--color-ink-2);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
}

body.is-locked {
  overflow: clip;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

button,
input {
  font: inherit;
}

button {
  color: inherit;
}

:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  inset-block-start: var(--space-sm);
  inset-inline-start: var(--space-sm);
  z-index: var(--z-modal);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  background: var(--color-ink);
  color: var(--color-paper);
  transform: translateY(-160%);
}

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

.container {
  width: min(74rem, calc(100% - 2rem));
  margin-inline: auto;
}

.site-nav {
  position: sticky;
  inset-block-start: 0;
  z-index: var(--z-sticky);
  border-block-end: var(--rule-thin) solid var(--color-rule);
  background: var(--color-paper);
}

.site-nav__inner {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--space-md);
  min-height: 4.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  min-width: 0;
  text-decoration: none;
  white-space: nowrap;
}

.brand img {
  width: 8.75rem;
  height: auto;
}

.search-pill {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  width: min(100%, 28rem);
  min-height: 2.75rem;
  justify-self: center;
  padding: var(--space-xs) var(--space-sm) var(--space-xs) var(--space-md);
  border: var(--rule-thin) solid var(--color-rule-2);
  border-radius: var(--radius-sm);
  background: var(--color-paper-2);
  color: var(--color-muted);
  cursor: pointer;
  transition: background-color var(--dur-short) var(--ease-out), transform var(--dur-micro) var(--ease-out);
}

.search-pill__label {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.search-pill kbd,
.command__hint kbd,
.command__footer kbd {
  padding: var(--space-2xs) var(--space-xs);
  border: var(--rule-thin) solid var(--color-rule);
  border-radius: var(--radius-sm);
  background: var(--color-paper);
  color: var(--color-ink-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
}

.nav-links {
  display: none;
  align-items: center;
  gap: var(--space-lg);
}

.nav-links a,
.footer a,
.text-link,
.download-link {
  white-space: nowrap;
  text-decoration-thickness: var(--rule-thin);
  text-underline-offset: 0.12em;
}

.nav-links a {
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
  color: var(--color-ink-2);
  text-decoration: none;
}

.page-head {
  display: grid;
  gap: var(--space-xl);
  padding-block: var(--space-xl) var(--space-2xl);
  border-block-end: var(--rule-thin) solid var(--color-rule);
}

.page-head h1 {
  max-width: 15ch;
  margin: 0;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: clamp(2.35rem, 7vw, 4.4rem);
  font-style: normal;
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1.04;
  min-width: 0;
  overflow-wrap: anywhere;
}

.page-head__summary {
  display: grid;
  align-content: end;
  gap: var(--space-md);
  max-width: 38rem;
}

.page-head__summary p {
  margin: 0;
  font-size: var(--text-md);
  line-height: 1.55;
}

.status-line {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm) var(--space-lg);
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--color-muted);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-variant-numeric: tabular-nums;
}

.status-line li::before {
  content: "";
  display: inline-block;
  width: 0.45rem;
  height: 0.45rem;
  margin-inline-end: var(--space-xs);
  border-radius: var(--radius-round);
  background: var(--color-accent);
}

.resource-index {
  padding-block: var(--space-xl) var(--space-3xl);
}

.index-nav {
  display: grid;
  gap: var(--space-sm);
  margin: 0 0 var(--space-2xl);
  padding: 0;
  list-style: none;
}

.index-nav a {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--space-md);
  padding-block: var(--space-lg);
  border-block-end: var(--rule-thin) solid var(--color-rule);
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  text-decoration: none;
}

.index-nav span {
  color: var(--color-muted);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 400;
  font-variant-numeric: tabular-nums;
}

.resource-section {
  scroll-margin-top: calc(var(--space-2xl) + var(--space-lg));
  padding-block: var(--space-xl) var(--space-2xl);
}

.resource-section + .resource-section {
  border-block-start: var(--rule-thin) solid var(--color-rule-2);
}

.section-intro {
  max-width: 46rem;
  margin: 0 0 var(--space-xl);
}

.section-intro h2 {
  margin: 0 0 var(--space-sm);
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-style: normal;
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.12;
  min-width: 0;
  overflow-wrap: anywhere;
}

.section-intro p {
  margin: 0;
  color: var(--color-muted);
}

.resource-list {
  margin: 0;
  border-block-start: var(--rule-thin) solid var(--color-rule);
}

.resource-row {
  display: grid;
  gap: var(--space-md);
  padding-block: var(--space-lg);
  border-block-end: var(--rule-thin) solid var(--color-rule);
}

.resource-row dt,
.resource-row dd {
  margin: 0;
}

.resource-row__id {
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.resource-row__body {
  min-width: 0;
}

.resource-row__body h3 {
  margin: 0 0 var(--space-xs);
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-style: normal;
  font-weight: 600;
  line-height: 1.3;
  overflow-wrap: anywhere;
}

.resource-row__body p {
  max-width: 65ch;
  margin: 0;
  color: var(--color-muted);
}

.resource-row__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs) var(--space-sm);
  margin-block-start: var(--space-sm);
  color: var(--color-muted);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-variant-numeric: tabular-nums;
}

.resource-row__action {
  display: flex;
  align-items: start;
}

.download-link,
.text-link {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  color: var(--color-accent-dark);
  font-weight: 600;
}

.empty-state {
  display: grid;
  gap: var(--space-md);
  padding: var(--space-xl);
  border: var(--rule-thin) solid var(--color-rule-2);
  border-radius: var(--radius-sm);
  background: var(--color-paper-2);
  color: var(--color-ink-2);
}

.empty-state h2,
.empty-state h3,
.empty-state p {
  margin: 0;
}

.empty-state h2,
.empty-state h3 {
  color: var(--color-ink);
  font-family: var(--font-display);
  font-style: normal;
  min-width: 0;
  overflow-wrap: anywhere;
}

.empty-state__status {
  color: var(--color-muted);
  font-family: var(--font-body);
  font-size: var(--text-sm);
}

.decision-strip {
  display: grid;
  gap: var(--space-lg);
  margin-block-start: var(--space-2xl);
  padding-block: var(--space-xl);
  border-block: var(--rule-thin) solid var(--color-rule-2);
}

.decision-strip h2,
.decision-strip p {
  margin: 0;
}

.decision-strip h2 {
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-style: normal;
  font-weight: 600;
  min-width: 0;
  overflow-wrap: anywhere;
}

.footer {
  padding-block: var(--space-xl);
  border-block-start: var(--rule-thin) solid var(--color-rule);
  color: var(--color-muted);
  font-size: var(--text-sm);
}

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

.footer p {
  margin: 0;
}

.command {
  width: min(42rem, calc(100% - 2rem));
  max-height: min(80dvh, 38rem);
  margin: auto;
  padding: 0;
  border: var(--rule-thin) solid var(--color-rule-2);
  border-radius: var(--radius-md);
  background: var(--color-paper);
  color: var(--color-ink-2);
  box-shadow: 0 1rem 3rem var(--color-shadow);
}

.command::backdrop {
  background: var(--color-backdrop);
}

.command__search {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  border-block-end: var(--rule-thin) solid var(--color-rule);
}

.command__search input {
  width: 100%;
  min-height: 2.75rem;
  padding: var(--space-sm) calc(var(--space-xl) + var(--space-2xs)) var(--space-sm) var(--space-md);
  border: var(--rule-thin) solid var(--color-rule-2);
  border-radius: var(--radius-sm);
  outline: var(--rule-focus) solid var(--color-transparent);
  outline-offset: 1px;
  background: var(--color-paper);
  color: var(--color-ink);
}

.command__search input::placeholder {
  color: var(--color-muted);
}

.command__search input:focus-visible {
  border-color: var(--color-accent-dark);
  outline-color: var(--color-focus);
}

.command__search input[aria-invalid="true"] {
  border-color: var(--color-error);
}

.command__search[data-state="success"] input {
  border-color: var(--color-success);
}

.command__search[data-state="loading"]::after {
  content: "";
  position: absolute;
  inset-inline-end: 5rem;
  width: 1rem;
  height: 1rem;
  border: 2px solid var(--color-rule);
  border-block-start-color: var(--color-accent);
  border-radius: var(--radius-round);
  animation: spin 800ms linear infinite;
}

.command__results {
  max-height: 24rem;
  overflow-y: auto;
  padding: var(--space-sm);
}

.command__group {
  margin: 0;
  padding: var(--space-xs) var(--space-sm);
  color: var(--color-muted);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.command__item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--space-md);
  width: 100%;
  min-height: 3.25rem;
  padding: var(--space-sm);
  border: 0;
  border-radius: var(--radius-sm);
  background: var(--color-paper);
  color: var(--color-ink-2);
  text-align: start;
  cursor: pointer;
}

.command__item.is-active {
  background: var(--color-paper-3);
  color: var(--color-ink);
}

.command__item small {
  color: var(--color-muted);
  font-family: var(--font-body);
  font-size: var(--text-xs);
}

.command__empty {
  margin: 0;
  padding: var(--space-xl) var(--space-md);
  color: var(--color-muted);
  text-align: center;
}

.command__footer {
  display: none;
  gap: var(--space-md);
  padding: var(--space-sm) var(--space-md);
  border-block-start: var(--rule-thin) solid var(--color-rule);
  color: var(--color-muted);
  font-size: var(--text-xs);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: calc(-1 * var(--rule-thin));
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@media (hover: hover) and (pointer: fine) {
  .search-pill:hover,
  .nav-links a:hover,
  .download-link:hover,
  .text-link:hover,
  .index-nav a:hover {
    color: var(--color-accent-dark);
  }

  .search-pill:hover {
    background: var(--color-paper-3);
  }

  .resource-row:hover {
    background: var(--color-paper-2);
  }

  .command__search input:hover {
    background: var(--color-paper-2);
  }

  .command__item:hover {
    background: var(--color-paper-3);
  }
}

a:active {
  color: var(--color-accent-dark);
}

.search-pill:active,
.download-link:active,
.text-link:active {
  transform: translateY(1px);
}

.command__item:active {
  transform: translateY(1px);
}

.command__search input:active {
  background: var(--color-paper-2);
}

.search-pill:disabled,
.command__item:disabled,
[aria-disabled="true"] {
  opacity: 0.55;
  cursor: not-allowed;
}

.command__search input:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  background: var(--color-paper-3);
}

@media (min-width: 40rem) {
  .container {
    width: min(74rem, calc(100% - 3rem));
  }

  .nav-links {
    display: flex;
  }

  .page-head {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    align-items: end;
    padding-block: var(--space-2xl) var(--space-3xl);
  }

  .resource-row {
    grid-template-columns: 8.5rem minmax(0, 1fr) auto;
    align-items: start;
  }

  .decision-strip {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }

  .footer__line {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }

  .command__footer {
    display: flex;
  }
}

@media (min-width: 60rem) {
  .site-nav__inner {
    grid-template-columns: auto minmax(20rem, 1fr) auto;
  }

  .resource-index {
    display: grid;
    grid-template-columns: 15rem minmax(0, 1fr);
    gap: var(--space-3xl);
  }

  .index-nav {
    position: sticky;
    inset-block-start: 6.5rem;
    align-self: start;
    margin: 0;
  }
}

@media (pointer: coarse) {
  .search-pill,
  .nav-links a,
  .download-link,
  .text-link,
  .command__item {
    min-height: 3rem;
  }
}

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