/* Hallmark · genre: modern-minimal · macrostructure: Ecosystem Index + Catalogue + Workbench
 * design-system: design.md · designed-as-app · nav: N1b bordered+⌘K · footer: Ft2
 */

html,
body {
  overflow-x: clip;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  background: var(--color-paper);
  color: var(--color-ink-2);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-width: 0;
}

::selection {
  background: color-mix(in oklch, var(--color-accent) 22%, transparent);
  color: var(--color-ink);
}

:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--color-ink);
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 0;
  text-wrap: balance;
  overflow-wrap: anywhere;
  min-width: 0;
}

p {
  margin: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  font-size: inherit;
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

/* ---- Nav (bordered flush bar + ⌘K palette) -------------------------------- */

.nav {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  border-bottom: 1px solid var(--color-rule);
  background: color-mix(in oklch, var(--color-paper) 86%, transparent);
  backdrop-filter: blur(10px) saturate(140%);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  max-width: 76rem;
  margin: 0 auto;
  padding: var(--space-sm) max(1rem, env(safe-area-inset-left));
}

.nav__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-base);
  color: var(--color-ink);
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.nav__mark {
  display: inline-grid;
  place-items: center;
  width: 1.5rem;
  height: 1.5rem;
  font-size: 0.9rem;
  color: var(--color-accent);
  border: 1px solid var(--color-rule-2);
  border-radius: var(--radius-sm);
}

.nav__actions {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
}

.nav__kbd {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.4rem 0.75rem;
  font-size: var(--text-sm);
  color: var(--color-ink-2);
  background: var(--color-paper-2);
  border: 1px solid var(--color-rule-2);
  border-radius: var(--radius-sm);
  white-space: nowrap;
  transition: border-color var(--dur-short) var(--ease-out), color var(--dur-short) var(--ease-out);
}

.nav__kbd:hover {
  border-color: var(--color-accent);
  color: var(--color-ink);
}

.nav__kbd-hint {
  display: inline-flex;
  align-items: center;
  gap: 1px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-muted);
}

.nav__kbd-key {
  padding: 1px 0.35rem;
  border: 1px solid var(--color-rule-2);
  border-bottom-width: 2px;
  border-radius: 4px;
  background: var(--color-paper);
  color: var(--color-ink-2);
}

.nav__cta {
  padding: 0.45rem 1rem;
  font-weight: 500;
  font-size: var(--text-sm);
  color: var(--color-accent-ink);
  background: var(--color-accent);
  border-radius: var(--radius-sm);
  white-space: nowrap;
  transition: filter var(--dur-short) var(--ease-out);
}

.nav__cta:hover {
  filter: brightness(1.06);
}

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

.nav__theme {
  display: inline-grid;
  place-items: center;
  width: 2.25rem;
  height: 2.25rem;
  padding: 0;
  color: var(--color-ink-2);
  background: var(--color-paper-2);
  border: 1px solid var(--color-rule-2);
  border-radius: var(--radius-sm);
  transition: border-color var(--dur-short) var(--ease-out), color var(--dur-short) var(--ease-out),
              transform 100ms var(--ease-out);
}

.nav__theme:hover {
  border-color: var(--color-accent);
  color: var(--color-ink);
}

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

.nav__theme-icon {
  display: block;
}

/* ---- ⌘K palette ---------------------------------------------------------- */

.palette {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: min(18vh, 8rem) 1rem 1rem;
}

.palette__backdrop {
  position: absolute;
  inset: 0;
  background: color-mix(in oklch, var(--color-ink) 35%, transparent);
}

.palette__sheet {
  position: relative;
  width: min(100%, 34rem);
  max-height: min(70vh, 34rem);
  display: flex;
  flex-direction: column;
  background: var(--color-paper);
  border: 1px solid var(--color-rule-2);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.palette__search {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  border-bottom: 1px solid var(--color-rule);
}

.palette__search-glyph {
  font-size: 1.1rem;
  color: var(--color-muted);
}

.palette__input {
  flex: 1;
  min-width: 0;
  border: none;
  outline: none;
  background: transparent;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-ink);
}

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

.palette__esc {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-muted);
  border: 1px solid var(--color-rule);
  border-radius: 4px;
  padding: 2px 6px;
}

.palette__group {
  overflow-y: auto;
  padding: var(--space-xs) var(--space-sm) var(--space-sm);
}

.palette__cat-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--color-muted);
  margin: var(--space-sm) var(--space-xs) var(--space-2xs);
}

.palette__items {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 13rem), 1fr));
  gap: 2px;
}

.palette__item {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.45rem 0.6rem;
  border-radius: 6px;
  font-size: var(--text-sm);
  color: var(--color-ink-2);
}

.palette__item:hover,
.palette__item.is-active {
  background: var(--color-paper-2);
  color: var(--color-ink);
}

.palette__item-icon {
  font-size: 0.95rem;
}

.palette__empty {
  padding: var(--space-lg);
  text-align: center;
  color: var(--color-muted);
  font-size: var(--text-sm);
}

.palette__foot {
  border-top: 1px solid var(--color-rule);
  padding: 0.5rem var(--space-md);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-muted);
}

.palette__foot kbd {
  font-family: inherit;
  color: var(--color-ink-2);
}

/* ---- Layout -------------------------------------------------------------- */

.layout {
  max-width: 76rem;
  margin: 0 auto;
  padding: var(--space-2xl) max(1rem, env(safe-area-inset-left)) var(--space-3xl);
  min-width: 0;
}

/* ---- Buttons ------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2xs);
  padding: 0.55rem 1.1rem;
  font-weight: 500;
  font-size: var(--text-sm);
  line-height: 1.3;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  transition: transform 100ms var(--ease-out), background-color var(--dur-short) var(--ease-out),
              border-color var(--dur-short) var(--ease-out), color var(--dur-short) var(--ease-out);
}

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

.btn--primary {
  background: var(--color-accent);
  color: var(--color-accent-ink);
  border: 1px solid var(--color-accent);
}

.btn--primary:hover {
  filter: brightness(1.06);
}

.btn--secondary {
  background: transparent;
  color: var(--color-ink);
  border: 1px solid var(--color-rule-2);
}

.btn--secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-ink);
}

/* ---- Home · Ecosystem Index -------------------------------------------------- */

.home__intro {
  border-top: 1px solid var(--color-ink);
  padding-top: var(--space-lg);
  margin-bottom: var(--space-2xl);
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: var(--space-2xl);
  align-items: start;
}

.home__status {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--color-accent);
  margin: 0 0 var(--space-xs);
}

.home__intro h1 {
  max-width: 21ch;
  font-size: clamp(2.25rem, 2.5vw + 1.25rem, 3rem);
  margin-top: var(--space-xs);
}

.home__intro p {
  max-width: 60ch;
  font-size: var(--text-md);
  margin-top: var(--space-md);
}

.home__stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-rule);
}

.home__stat {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-muted);
  padding: 0.35rem 0.7rem;
  border: 1px solid var(--color-rule);
  border-radius: 999px;
  white-space: nowrap;
}

.home__stat strong {
  color: var(--color-ink);
  font-weight: 600;
}

.home__intro__media {
  margin: 0;
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.06);
}

.home__intro__media img {
  display: block;
  width: 100%;
  height: auto;
}

/* Category band — the rail is the divider */

.home-band {
  border-top: 1px solid var(--color-rule);
  padding: var(--space-2xl) 0;
}

.home-band:last-of-type {
  border-bottom: 1px solid var(--color-rule);
}

.home-band__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.home-band__title {
  display: inline-flex;
  align-items: baseline;
  gap: var(--space-xs);
}

.home-band__title h2 {
  font-size: var(--text-xl);
}

.home-band__icon {
  font-size: 1rem;
}

.home-band__count {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-muted);
  white-space: nowrap;
}

.home-band__more {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-ink);
  padding-bottom: 2px;
  border-bottom: 2px solid var(--color-accent);
  white-space: nowrap;
  transition: border-color var(--dur-short) var(--ease-out);
}

.home-band__more:hover {
  border-bottom-color: var(--color-ink);
}

/* Tool card — a hairline chip, not a boxed card */

.tool-chips {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: var(--space-xs);
  padding: 0;
  margin: 0;
  list-style: none;
}

.tool-chip {
  min-width: 0;
}

.tool-chip a {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-sm);
  color: var(--color-ink-2);
  transition: border-color var(--dur-short) var(--ease-out), color var(--dur-short) var(--ease-out);
}

.tool-chip a:hover {
  border-color: var(--color-accent);
  color: var(--color-ink);
}

.tool-chip__icon {
  font-size: 0.95rem;
  flex-shrink: 0;
}

.tool-chip__name {
  font-size: var(--text-sm);
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tool-chips--catalogue .tool-chip a {
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-2xs);
  padding: var(--space-md);
}

.tool-chips--catalogue .tool-chip__icon {
  font-size: 1.2rem;
}

/* Graphite trust band — the page's one dark beat */

.home-trust {
  margin-top: var(--space-2xl);
  padding: var(--space-2xl) max(1rem, env(safe-area-inset-left));
  background: var(--color-graphite);
  color: var(--color-on-graphite-2);
  display: grid;
  gap: var(--space-2xl);
}

.home-trust__label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.home-trust h2 {
  color: var(--color-on-graphite);
  max-width: 18ch;
  font-size: var(--text-2xl);
}

.home-trust p {
  max-width: 48ch;
  color: var(--color-on-graphite-2);
  margin-top: var(--space-md);
}

.home-trust__pipeline {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  align-items: center;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-on-graphite-muted);
}

.home-trust__step {
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--color-on-graphite-rule);
  border-radius: var(--radius-sm);
}

.home-trust__arrow {
  color: var(--color-accent);
}

/* ---- Category · Catalogue --------------------------------------------------- */

.category-page {
  border-top: 1px solid var(--color-ink);
  padding-top: var(--space-lg);
}

.breadcrumb {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-muted);
  margin: 0 0 var(--space-lg);
  white-space: nowrap;
  overflow-x: auto;
  scrollbar-width: none;
}

.breadcrumb::-webkit-scrollbar {
  display: none;
}

.breadcrumb a {
  color: var(--color-muted);
  transition: color var(--dur-short) var(--ease-out);
}

.breadcrumb a:hover {
  color: var(--color-accent);
}

.breadcrumb [aria-current="page"] {
  color: var(--color-ink);
}

.category-page__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-xs) var(--space-md);
  margin-bottom: var(--space-md);
}

.category-page__head h1 {
  font-size: var(--text-2xl);
}

.category-intro {
  max-width: 52ch;
  color: var(--color-muted);
  margin-bottom: var(--space-lg);
}

.category-page__count {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-muted);
  white-space: nowrap;
}

.category-page > p {
  max-width: 62ch;
  color: var(--color-muted);
  margin-bottom: var(--space-2xl);
}

/* ---- Tool page · Workbench ---------------------------------------------------- */

.tool-page {
  border-top: 1px solid var(--color-ink);
  padding-top: var(--space-lg);
}

.tool-page__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-xs) var(--space-md);
  margin-bottom: var(--space-xs);
}

.tool-page__head h1 {
  font-size: var(--text-2xl);
}

.tool-page__tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--color-accent);
  border: 1px solid color-mix(in oklch, var(--color-accent) 35%, var(--color-rule));
  border-radius: 999px;
  padding: 0.2rem 0.6rem;
  white-space: nowrap;
}

.tool-page > p {
  max-width: 62ch;
  color: var(--color-muted);
  margin-bottom: var(--space-lg);
}

.tool-disclaimer {
  display: flex;
  gap: var(--space-sm);
  align-items: flex-start;
  max-width: 62ch;
  margin: 0 0 var(--space-lg);
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-rule);
  border-left: 3px solid var(--color-accent);
  border-radius: var(--radius-sm);
  background: var(--color-paper-2);
  font-size: var(--text-sm);
  color: var(--color-ink-2);
}

.tool-disclaimer p {
  margin: 0;
}

/* Sibling tools */

.siblings {
  border-top: 1px solid var(--color-rule);
  margin-top: var(--space-2xl);
  padding-top: var(--space-lg);
}

.siblings__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.siblings h2 {
  font-size: var(--text-lg);
}

/* ---- Footer · Ft2 ------------------------------------------------------------- */

.foot-line {
  border-top: 1px solid var(--color-rule);
}

.foot-line p {
  max-width: 76rem;
  margin: 0 auto;
  padding: var(--space-lg) max(1rem, env(safe-area-inset-left)) var(--space-2xl);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-muted);
}

/* ---- Shared bits ---------------------------------------------------------------- */

.field {
  text-align: center;
  padding: var(--space-xl) 0;
}

.field h1 {
  font-size: var(--text-2xl);
}

.field p {
  color: var(--color-muted);
  margin-top: var(--space-md);
}

/* ---- Reduced motion ------------------------------------------------------------- */

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

/* ---- Responsive ---------------------------------------------------------------- */

@media (max-width: 40rem) {
  .nav__kbd-label {
    display: none;
  }

  .home__intro {
    padding-top: var(--space-md);
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .home-band__title h2 {
    font-size: var(--text-lg);
  }

  .home-trust {
    padding-block: var(--space-xl);
  }

  .tool-chips {
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 9.5rem), 1fr));
  }
}