/* Site chrome: header, footer, page shells */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.site-header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 1rem;
  justify-content: space-between;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: -0.03em;
  white-space: nowrap;
}

.brand:hover {
  color: var(--text);
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 0.58rem;
  line-height: 1.05;
  text-align: center;
  color: var(--accent);
  font-weight: 700;
}

.brand__text {
  font-size: 0.95rem;
}

.nav-desktop {
  display: none;
  align-items: center;
  gap: 0.15rem;
}

.nav-desktop a {
  color: var(--muted);
  text-decoration: none;
  padding: 0.4rem 0.7rem;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-weight: 500;
}

.nav-desktop a:hover,
.nav-desktop a[aria-current="page"] {
  color: var(--text);
  background: var(--accent-soft);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.icon-btn,
.menu-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  min-height: 40px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font: inherit;
}

.icon-btn:hover,
.menu-toggle:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.lang-switcher {
  position: relative;
}

.lang-switcher__btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  min-height: 40px;
  padding: 0 0.7rem;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font: inherit;
  font-size: 0.88rem;
}

.lang-switcher__panel {
  position: absolute;
  right: 0;
  top: calc(100% + 0.35rem);
  min-width: 200px;
  max-height: 320px;
  overflow: auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 0.35rem;
  display: none;
  z-index: 120;
}

.lang-switcher__panel[data-open="true"] {
  display: block;
}

.lang-switcher__panel a {
  display: block;
  padding: 0.45rem 0.65rem;
  color: var(--muted);
  text-decoration: none;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
}

.lang-switcher__panel a:hover,
.lang-switcher__panel a[aria-current="true"] {
  background: var(--accent-soft);
  color: var(--text);
}

.nav-mobile {
  display: none;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

.nav-mobile[data-open="true"] {
  display: block;
}

.nav-mobile a {
  display: block;
  padding: 0.85rem 1rem;
  color: var(--text);
  text-decoration: none;
  border-top: 1px solid var(--border);
}

.hero {
  padding: 1.5rem 0 1rem;
}

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

.hero__kicker {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 42px;
  padding: 0.55rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font: inherit;
  font-weight: 600;
  font-size: 0.92rem;
  cursor: pointer;
  text-decoration: none;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}

.btn-primary {
  background: var(--accent);
  color: #041018;
}

.btn-primary:hover {
  background: var(--accent-hover);
  color: #041018;
}

.btn-secondary {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}

.btn-secondary:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--text);
}

.btn-ghost {
  background: transparent;
  border-color: transparent;
  color: var(--muted);
}

.btn-ghost:hover {
  color: var(--text);
  background: var(--surface-2);
}

.btn-sm {
  min-height: 34px;
  padding: 0.3rem 0.65rem;
  font-size: 0.82rem;
}

.section {
  padding: 2.5rem 0;
  border-top: 1px solid var(--border);
}

.section__header {
  margin-bottom: 1.5rem;
  max-width: 48rem;
}

.feature-strip {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.feature-chip {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.9rem 1rem;
}

.feature-chip strong {
  display: block;
  color: var(--text);
  margin-bottom: 0.2rem;
  font-size: 0.95rem;
}

.feature-chip span {
  color: var(--muted);
  font-size: 0.88rem;
}

.steps {
  display: grid;
  gap: 0.85rem;
  counter-reset: step;
}

.step {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1rem 1rem 3.2rem;
  position: relative;
}

.step::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 1rem;
  top: 1rem;
  width: 1.6rem;
  height: 1.6rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  display: grid;
  place-items: center;
  font-size: 0.8rem;
  font-weight: 700;
}

.grid-2,
.grid-3,
.grid-cards {
  display: grid;
  gap: 1rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem;
}

.card h3 {
  margin-bottom: 0.4rem;
}

.card p:last-child {
  margin-bottom: 0;
}

.example-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 0.65rem;
}

.example-btn {
  text-align: left;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: var(--radius-sm);
  padding: 0.75rem 0.85rem;
  cursor: pointer;
  font: inherit;
  font-size: 0.9rem;
  font-weight: 500;
}

.example-btn:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.faq details {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.85rem 1rem;
  margin-bottom: 0.65rem;
}

.faq summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--text);
}

.faq details[open] summary {
  margin-bottom: 0.55rem;
}

.breadcrumbs {
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 70%, transparent);
  padding: 0.65rem 0;
}

.breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.25rem 0;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.84rem;
  color: var(--muted);
}

.breadcrumbs__item {
  display: inline-flex;
  align-items: center;
  min-width: 0;
}

.breadcrumbs__item:not(:last-child)::after {
  content: "/";
  margin: 0 0.55rem;
  color: color-mix(in srgb, var(--muted) 70%, transparent);
  speak: never;
}

.breadcrumbs__link {
  color: var(--muted);
  text-decoration: none;
  border-radius: 4px;
  padding: 0.1rem 0.15rem;
}

.breadcrumbs__link:hover {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.breadcrumbs__current {
  color: var(--text);
  font-weight: 600;
  max-width: min(100%, 28rem);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.site-footer {
  margin-top: 2rem;
  border-top: 1px solid var(--border);
  background: var(--surface);
  padding: 2.5rem 0 1.5rem;
}

.footer-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}

.footer-col h3 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  margin-bottom: 0.75rem;
}

.footer-col a {
  display: block;
  color: var(--text);
  text-decoration: none;
  padding: 0.25rem 0;
  font-size: 0.92rem;
}

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

.footer-bottom {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.85rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: space-between;
}

.prose {
  max-width: 48rem;
}

/* Never shrink a layout container — keeps breadcrumbs / hero / tools aligned */
.container.prose,
.container-wide.prose {
  max-width: var(--max);
}

.page-hero {
  padding: 1.25rem 0 0.85rem;
}

.page-hero h1 {
  margin: 0 0 0.55rem;
  letter-spacing: -0.03em;
  line-height: 1.15;
}

.page-hero > p,
.tool-page-hero__lead {
  margin: 0 0 0.55rem;
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 52rem;
  line-height: 1.55;
}

.page-hero .container > p:last-child {
  margin-bottom: 0;
}

.tool-workspace {
  --tool-bg: #000000;
  --tool-panel: #0a0a0a;
  --tool-panel-head: #141414;
  --tool-border: #2e2e2e;
  --tool-text: #f3f3f3;
  --tool-muted: #a3a3a3;
  margin: 0.35rem 0 1.75rem;
  padding: 0;
  background: transparent;
  border: 0;
  color: var(--tool-text);
}

.tool-layout {
  display: grid;
  gap: 1rem;
  margin-block: 0;
  margin-inline: auto;
  align-items: stretch;
  padding: 1rem;
  background-color: #000000;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 28px 28px;
  border: 1px solid #222;
  border-radius: calc(var(--radius) + 4px);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.28);
}

.tool-panel {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 380px;
  background: var(--tool-panel);
  border: 1px solid var(--tool-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.55);
}

.tool-panel__head {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  justify-content: space-between;
  min-height: 3.25rem;
  padding: 0.65rem 1rem;
  border-bottom: 1px solid var(--tool-border);
  background: var(--tool-panel-head);
  color: var(--tool-text);
}

.tool-panel__head strong {
  color: var(--tool-text);
  font-size: 0.92rem;
}

.tool-panel__head > div {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
}

.tool-panel__head .status {
  color: var(--tool-muted);
}

.tool-panel__head .btn-secondary,
.tool-panel__head .btn-ghost {
  background: #1a1a1a;
  border-color: #333;
  color: var(--tool-text);
}

.tool-panel__head .btn-secondary:hover,
.tool-panel__head .btn-ghost:hover {
  background: #262626;
  border-color: var(--accent);
  color: #fff;
}

.tool-panel__body {
  flex: 1;
  padding: 0;
  display: flex;
  flex-direction: column;
  min-height: 0;
  background: #050505;
}

.tool-textarea {
  width: 100%;
  flex: 1;
  min-height: 300px;
  border: 0;
  resize: vertical;
  padding: 1rem 1.1rem;
  background: transparent;
  color: #e8e8e8;
  caret-color: var(--accent);
  font-family: var(--mono);
  font-size: 0.875rem;
  line-height: 1.55;
  box-sizing: border-box;
}

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

.tool-textarea:focus {
  outline: none;
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent) 45%, transparent);
}

.related-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.85rem;
}

.related-links a {
  font-size: 0.92rem;
  display: inline-flex;
  padding: 0.35rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  text-decoration: none;
  color: var(--text);
}

.related-links a:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent);
}

.prose ul,
.prose ol {
  padding-left: 1.25rem;
  margin: 0 0 1rem;
}

.prose li {
  margin-bottom: 0.35rem;
}

.table-wrap {
  overflow-x: auto;
  margin-bottom: 1.25rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

th,
td {
  text-align: left;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--border);
}

th {
  background: var(--surface-2);
  color: var(--text);
}

td {
  color: var(--muted);
}

.status {
  font-size: 0.85rem;
  color: var(--muted);
}

.status[data-tone="error"] {
  color: var(--danger);
}

.status[data-tone="ok"] {
  color: var(--ok);
}

@media (min-width: 768px) {
  .nav-desktop {
    display: flex;
  }

  .menu-toggle {
    display: none;
  }

  .feature-strip {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .grid-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid-3,
  .grid-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .tool-layout {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 1024px) {
  .brand__text-full {
    display: inline;
  }
}