/* hallmark — genre: modern-minimal · macrostructure: component-playground · theme: cobalt */

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  overflow-x: clip;
  scroll-behavior: smooth;
}

html { scroll-padding-top: 5rem; }

body {
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

::selection { background: var(--color-accent); color: var(--color-accent-ink); }

a { color: inherit; }

.container {
  width: min(100% - clamp(1.5rem, 5vw, 4rem), 70rem);
  margin-inline: auto;
}

h1, h2, h3 { font-family: var(--font-display); line-height: 1.15; letter-spacing: -0.02em; }

/* ── nav ─────────────────────────────── */

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--color-paper);
  border-bottom: 1px solid var(--color-rule);
}

.nav__inner {
  display: flex;
  align-items: center;
  gap: 2rem;
  height: 3.5rem;
}

.nav__logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: -0.02em;
  text-decoration: none;
  white-space: nowrap;
}

.nav__logo-accent { color: var(--color-accent); }

.nav__links {
  display: none;
  align-items: center;
  gap: 1.5rem;
  margin-inline-start: auto;
}

.nav__link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-ink-2);
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--dur-2) var(--ease-out);
}

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

.nav__kbd {
  margin-inline-start: auto;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  height: 2rem;
  padding-inline: 0.625rem;
  border: 1px solid var(--color-rule-2);
  border-radius: var(--r-1);
  background: transparent;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  cursor: pointer;
  transition: border-color var(--dur-2) var(--ease-out), color var(--dur-2) var(--ease-out);
}

@media (hover: hover) and (pointer: fine) {
  .nav__kbd:hover { border-color: var(--color-ink-2); color: var(--color-ink); }
}

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

@media (min-width: 40rem) {
  .nav__links { display: flex; }
  .nav__kbd { margin-inline-start: 0; }
}

/* ── hero ────────────────────────────── */

.hero { padding-block: clamp(4rem, 9vw, 7rem) clamp(2.5rem, 6vw, 4rem); }

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-accent);
  border: 1px solid var(--color-accent-soft);
  background: var(--color-accent-soft);
  border-radius: 999px;
  padding: 0.25rem 0.75rem;
  white-space: nowrap;
}

.hero__title {
  margin-top: 1.25rem;
  font-size: clamp(2.25rem, 5vw, 3.75rem);
  font-weight: 700;
  max-width: 22ch;
  overflow-wrap: anywhere;
}

.hero__sub {
  margin-top: 1.25rem;
  max-width: 46ch;
  font-size: clamp(1rem, 2vw, 1.125rem);
  color: var(--color-ink-2);
}

.hero__cta { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 2rem; }

.hero__stats {
  display: grid;
  grid-template-columns: 1fr;
  margin-top: clamp(3rem, 7vw, 5rem);
  border-top: 1px solid var(--color-rule);
}

.hero__stat {
  padding-block: 1rem;
  border-bottom: 1px solid var(--color-rule);
}

.hero__stat-num {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.25rem;
}

.hero__stat-num em { font-style: normal; color: var(--color-accent); }

.hero__stat-label {
  font-size: 0.8125rem;
  color: var(--color-muted);
}

@media (min-width: 40rem) {
  .hero__stats { grid-template-columns: repeat(3, 1fr); gap: 2rem; }
  .hero__stat { border-bottom: 0; }
}

/* ── bands (component playground) ────── */

.band { padding-block: clamp(3rem, 7vw, 5rem); border-top: 1px solid var(--color-rule); }

.band__label {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.band__label::before {
  content: "";
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--color-accent);
}

.band__head { margin-top: 0.875rem; max-width: 44rem; }

.band__title { font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 600; }

.band__lede { margin-top: 0.5rem; color: var(--color-ink-2); }

.band__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 2rem;
  align-items: start;
}

.band__grid > .block { min-width: 0; }

@media (min-width: 60rem) {
  .band__grid { grid-template-columns: 1fr 1fr; gap: 2.5rem; }
  .band__grid--flip > .block:first-child { order: 2; }
}

/* ── cards ───────────────────────────── */

.card {
  background: var(--color-paper);
  border: 1px solid var(--color-rule);
  border-radius: var(--r-2);
  overflow: hidden;
  min-width: 0;
}

.card--dark {
  background: var(--color-graphite);
  border-color: var(--color-graphite);
  color: var(--color-code);
}

.card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.625rem 1rem;
  border-bottom: 1px solid var(--color-rule);
}

.card--dark .card__head { border-bottom-color: var(--color-graphite-2); }

.card__title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card--dark .card__title { color: var(--color-code-dim); }

.card__body { padding: 1rem; }

.card--dark .card__body { padding: 1.125rem 1.25rem; }

/* ── code ────────────────────────────── */

.code {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--color-code);
  overflow-x: auto;
  overflow-wrap: anywhere;
  min-width: 0;
}

.card:not(.card--dark) .code { color: var(--color-ink-2); }

.code .tok-dim { color: var(--color-code-dim); }
.code .tok-accent { color: var(--color-code-accent); }
.card:not(.card--dark) .code .tok-dim { color: var(--color-muted); }
.card:not(.card--dark) .code .tok-accent { color: var(--color-accent-2); }

/* ── copy button ─────────────────────── */

.copy {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  height: 2rem;
  padding-inline: 0.625rem;
  border: 1px solid var(--color-rule-2);
  border-radius: var(--r-1);
  background: transparent;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-muted);
  cursor: pointer;
  white-space: nowrap;
  transition: border-color var(--dur-2) var(--ease-out), color var(--dur-2) var(--ease-out), background-color var(--dur-2) var(--ease-out);
}

.card--dark .copy { border-color: var(--color-graphite-2); color: var(--color-code-dim); }

@media (hover: hover) and (pointer: fine) {
  .copy:hover { border-color: var(--color-ink-2); color: var(--color-ink); }
  .card--dark .copy:hover { border-color: var(--color-code-dim); color: var(--color-code); }
}

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

.copy[data-state="copied"] { border-color: var(--color-success); color: var(--color-success); }
.card--dark .copy[data-state="copied"] { border-color: var(--color-success); color: var(--color-success); }

.copy__label::after { content: " Copy"; }
.copy[data-state="copied"] .copy__label::after { content: " ✓ Copied"; }

/* ── docs side ───────────────────────── */

.docs h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-top: 1.5rem;
}

.docs h3:first-child { margin-top: 0; }

.docs p, .docs li { font-size: 0.9375rem; color: var(--color-ink-2); }

.docs ul { list-style: none; margin-top: 0.5rem; }

.docs li {
  padding: 0.375rem 0 0.375rem 1.25rem;
  position: relative;
}

.docs li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.85em;
  width: 0.375rem;
  height: 0.375rem;
  border-radius: 50%;
  background: var(--color-accent);
}

.docs code {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  background: var(--color-paper-2);
  border: 1px solid var(--color-rule);
  border-radius: var(--r-1);
  padding: 0.0625rem 0.3125rem;
  color: var(--color-ink);
  overflow-wrap: anywhere;
}

/* ── tabs (response examples) ────────── */

.tabs { position: relative; }

.tabs__radio {
  position: absolute;
  top: 0;
  left: 0;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.tabs__labels {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  padding: 0.375rem;
  border-bottom: 1px solid var(--color-rule);
  background: var(--color-paper-2);
}

.tabs__label {
  display: inline-flex;
  align-items: center;
  height: 2.125rem;
  padding-inline: 0.875rem;
  border-radius: var(--r-1);
  border: 1px solid transparent;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-muted);
  cursor: pointer;
  white-space: nowrap;
  transition: background-color var(--dur-2) var(--ease-out), color var(--dur-2) var(--ease-out);
}

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

.tabs__radio:checked + .tabs__label {
  background: var(--color-ink);
  color: var(--color-paper);
}

.tabs__radio:focus-visible + .tabs__label {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.tabs__panels { padding: 1.125rem 1.25rem; min-width: 0; }

.tabs__panel { display: none; }

#tab-simfile:checked ~ .tabs__panels #panel-simfile,
#tab-sfile:checked ~ .tabs__panels #panel-sfile,
#tab-linkvertise:checked ~ .tabs__panels #panel-linkvertise,
#tab-sfl:checked ~ .tabs__panels #panel-sfl {
  display: block;
  animation: tab-fade var(--dur-3) var(--ease-out);
}

@keyframes tab-fade {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ── sandbox ─────────────────────────── */

.sandbox { display: grid; gap: 1rem; }

.sandbox__row {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

@media (min-width: 40rem) {
  .sandbox__row { flex-direction: row; }
}

.sandbox__field { flex: 1; }

.sandbox__label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  margin-bottom: 0.375rem;
}

.sandbox__detect {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  min-height: 1.5rem;
  margin-top: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--color-muted);
}

.sandbox__detect[hidden] { display: none; }

.sandbox__detect-chip {
  background: var(--color-accent-soft);
  color: var(--color-accent-2);
  border-radius: 999px;
  padding: 0.125rem 0.5rem;
  font-weight: 600;
}

.input {
  width: 100%;
  height: 44px;
  border: 1px solid var(--color-rule-2);
  border-radius: var(--r-2);
  background: var(--color-paper);
  padding-inline: 0.875rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--color-ink);
  outline: 2px solid transparent;
  outline-offset: 1px;
  transition: background-color var(--dur-2) var(--ease-out), border-color var(--dur-2) var(--ease-out);
}

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

@media (hover: hover) and (pointer: fine) {
  .input:hover { background: var(--color-paper-2); }
}

.input:focus-visible { outline-color: var(--color-focus); }

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  height: 44px;
  padding-inline: 1.25rem;
  border-radius: var(--r-2);
  border: 1px solid transparent;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: background-color var(--dur-2) var(--ease-out), border-color var(--dur-2) var(--ease-out), color var(--dur-2) var(--ease-out), transform var(--dur-1) var(--ease-out);
}

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

.btn--primary { background: var(--color-accent); color: var(--color-accent-ink); }

@media (hover: hover) and (pointer: fine) {
  .btn--primary:hover { background: var(--color-accent-2); }
}

.btn--ghost { background: transparent; border-color: var(--color-rule-2); color: var(--color-ink); }

@media (hover: hover) and (pointer: fine) {
  .btn--ghost:hover { border-color: var(--color-ink-2); }
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
}

.btn__spinner {
  width: 1rem;
  height: 1rem;
  border: 2px solid currentColor;
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.sandbox__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  align-items: center;
}

.sandbox__chips-label {
  font-size: 0.75rem;
  color: var(--color-muted);
  white-space: nowrap;
}

.chip {
  display: inline-flex;
  align-items: center;
  height: 1.875rem;
  padding-inline: 0.625rem;
  border: 1px solid var(--color-rule);
  border-radius: 999px;
  background: transparent;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--color-ink-2);
  cursor: pointer;
  white-space: nowrap;
  transition: border-color var(--dur-2) var(--ease-out), color var(--dur-2) var(--ease-out), background-color var(--dur-2) var(--ease-out);
}

@media (hover: hover) and (pointer: fine) {
  .chip:hover { border-color: var(--color-accent); color: var(--color-accent-2); }
}

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

.sandbox__note {
  font-size: 0.8125rem;
  color: var(--color-muted);
}

.result { display: grid; gap: 0.75rem; }

.result__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.625rem;
}

.status-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  height: 1.75rem;
  padding-inline: 0.625rem;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  white-space: nowrap;
}

.status-chip::before {
  content: "";
  width: 0.4375rem;
  height: 0.4375rem;
  border-radius: 50%;
  background: currentColor;
}

.status-chip--ok { background: var(--color-success); color: var(--color-success-ink); }
.status-chip--err { background: var(--color-error); color: var(--color-error-ink); }
.status-chip--info { background: var(--color-accent-soft); color: var(--color-accent-2); }

.result__latency { font-family: var(--font-mono); font-size: 0.75rem; color: var(--color-muted); }

.result__body {
  background: var(--color-graphite);
  color: var(--color-code);
  border-radius: var(--r-2);
  padding: 1.125rem 1.25rem;
  overflow: hidden;
}

.result__body--err {
  border: 1px solid var(--color-error);
}

.result__empty {
  display: grid;
  place-items: center;
  gap: 0.375rem;
  min-height: 9rem;
  text-align: center;
  color: var(--color-muted);
  font-size: 0.875rem;
  border: 1px dashed var(--color-rule-2);
  border-radius: var(--r-2);
  padding: 1.5rem;
}

.result__empty[hidden] { display: none; }

.result[hidden] { display: none; }

/* ── table ───────────────────────────── */

.table-wrap { overflow-x: auto; }

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  min-width: 34rem;
}

.table th {
  text-align: left;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.625rem 0.75rem;
  border-bottom: 1px solid var(--color-rule-2);
  white-space: nowrap;
}

.table td {
  padding: 0.75rem;
  border-bottom: 1px solid var(--color-rule);
  vertical-align: top;
  color: var(--color-ink-2);
}

.table tr:last-child td { border-bottom: 0; }

.table code {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background: var(--color-paper-2);
  border: 1px solid var(--color-rule);
  border-radius: var(--r-1);
  padding: 0.0625rem 0.3125rem;
  white-space: nowrap;
}

.table .tok-400 { color: var(--color-error); font-weight: 600; }

.limit-grid { display: grid; gap: 1.5rem; margin-top: 2rem; }

.limit-grid > * { min-width: 0; }

@media (min-width: 60rem) {
  .limit-grid { grid-template-columns: 1fr 1.6fr; gap: 2.5rem; align-items: start; }
}

.limit-card { padding: 1.25rem; }

.limit-card__num {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.limit-card__num em { font-style: normal; color: var(--color-accent); }

.limit-card__txt { margin-top: 0.25rem; font-size: 0.875rem; color: var(--color-ink-2); }

.limit-card__bar {
  margin-top: 1rem;
  height: 0.375rem;
  border-radius: 999px;
  background: var(--color-paper-2);
  border: 1px solid var(--color-rule);
  overflow: hidden;
}

.limit-card__bar-fill {
  width: 100%;
  height: 100%;
  border-radius: 999px;
  background: var(--color-accent);
}

/* ── footer ──────────────────────────── */

.foot { border-top: 1px solid var(--color-rule); padding-block: 1.5rem; }

.foot__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 2rem;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-muted);
}

.foot a {
  color: var(--color-ink-2);
  text-decoration: none;
  transition: color var(--dur-2) var(--ease-out);
}

@media (hover: hover) and (pointer: fine) {
  .foot a:hover { color: var(--color-accent-2); }
}

/* ── command palette ─────────────────── */

.palette {
  border: 1px solid var(--color-rule);
  border-radius: var(--r-2);
  padding: 0;
  width: min(92vw, 34rem);
  max-height: min(80vh, 30rem);
  position: fixed;
  inset: 0;
  margin: auto;
  height: fit-content;
  background: var(--color-paper);
  color: var(--color-ink);
  overflow: hidden;
  box-shadow: 0 1rem 3rem oklch(24% 0.02 258 / 0.12);
}

.palette::backdrop {
  background: oklch(24% 0.02 258 / 0.4);
}

.palette__input {
  width: 100%;
  height: 3rem;
  border: 0;
  border-bottom: 1px solid var(--color-rule);
  background: transparent;
  padding-inline: 1rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--color-ink);
  outline: none;
}

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

.palette__list {
  max-height: 16rem;
  overflow-y: auto;
  padding: 0.375rem;
}

.palette__item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: 100%;
  padding: 0.5625rem 0.75rem;
  border: 0;
  border-radius: var(--r-1);
  background: transparent;
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--color-ink);
  text-align: left;
  cursor: pointer;
  transition: background-color var(--dur-1) var(--ease-out);
}

.palette__item[hidden] { display: none; }

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

.palette__item-kbd {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--color-muted);
  border: 1px solid var(--color-rule);
  border-radius: var(--r-1);
  padding: 0.0625rem 0.3125rem;
  white-space: nowrap;
}

.palette__hint {
  display: flex;
  gap: 1rem;
  padding: 0.5rem 0.75rem;
  border-top: 1px solid var(--color-rule);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--color-muted);
}

/* ── reduced motion ──────────────────── */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}