@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@400;500;600;700&family=JetBrains+Mono:wght@500;600&display=swap");

:root {
  --paper: #f7f8f5;
  --surface: #ffffff;
  --ink: #151815;
  --muted: #5c655e;
  --line: #d8ded8;
  --cobalt: #2458d3;
  --cobalt-dark: #173d9c;
  --coral: #f0543f;
  --mint: #dff4e8;
  --focus: #0b62f4;
  --shadow: 0 18px 50px rgba(25, 37, 28, 0.09);
  color-scheme: light;
  font-family: "IBM Plex Sans", system-ui, sans-serif;
  font-synthesis: none;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.6;
}

a { color: inherit; }

button, select { font: inherit; }

button, select, a { -webkit-tap-highlight-color: transparent; }

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

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 20;
  padding: 10px 14px;
  background: var(--ink);
  color: white;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-150%);
}

.skip-link:focus {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(247, 248, 245, 0.94);
}

.header-inner,
.page-shell,
.footer-inner {
  width: min(1180px, calc(100% - 40px));
  margin-inline: auto;
}

.header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  text-decoration: none;
  font-weight: 700;
}

.brand-mark {
  width: 30px;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  background: var(--ink);
  color: white;
  font-family: "JetBrains Mono", monospace;
  font-size: 13px;
}

.site-nav { display: flex; gap: 26px; }

.site-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
}

.site-nav a:hover { color: var(--ink); }

.site-nav .language-switch {
  padding: 4px 9px;
  border: 1px solid var(--line);
  color: var(--ink);
  white-space: nowrap;
}

.site-nav .language-switch:hover { border-color: var(--ink); background: var(--mint); }

.hero {
  padding: 66px 0 58px;
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(520px, 1.18fr);
  gap: 72px;
  align-items: start;
}

.eyebrow {
  margin: 0 0 20px;
  color: var(--cobalt-dark);
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
}

h1, h2, h3 { line-height: 1.12; }

h1 {
  margin: 0;
  max-width: 720px;
  font-size: clamp(44px, 5vw, 70px);
  letter-spacing: 0;
}

.hero-copy {
  margin: 24px 0 28px;
  max-width: 620px;
  color: var(--muted);
  font-size: 19px;
}

.trust-line {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  margin: 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--line);
  list-style: none;
  color: var(--muted);
  font-size: 14px;
}

.trust-line li::before {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 8px;
  border-radius: 50%;
  background: var(--coral);
}

.digit-rail {
  margin-top: 38px;
  padding: 13px 0;
  overflow: hidden;
  border-block: 1px solid var(--line);
  color: var(--cobalt);
  font-family: "JetBrains Mono", monospace;
  font-size: 13px;
  white-space: nowrap;
  word-spacing: 7px;
  transition: opacity 180ms ease;
}

.generator {
  min-width: 0;
  background: var(--surface);
  border: 1px solid var(--ink);
  box-shadow: var(--shadow);
}

.generator-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 15px 18px;
  background: var(--ink);
  color: white;
}

.generator-head strong {
  font-family: "JetBrains Mono", monospace;
  font-size: 13px;
}

.live-indicator {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #d9e1da;
  font-size: 12px;
}

.live-indicator::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #69dc91;
}

.generator-form {
  display: grid;
  grid-template-columns: 1.5fr 1fr 0.7fr auto;
  gap: 12px;
  padding: 18px;
  border-bottom: 1px solid var(--line);
  align-items: end;
}

.batch-meta {
  display: grid;
  grid-template-columns: 1.35fr 0.8fr 1fr;
  border-bottom: 1px solid var(--line);
  background: #f1f4f0;
}

.batch-meta > span {
  min-width: 0;
  padding: 9px 14px;
  border-right: 1px solid var(--line);
}

.batch-meta > span:last-child { border-right: 0; }

.batch-meta small,
.rule-context small {
  display: block;
  color: var(--muted);
  font-size: 10px;
  font-weight: 700;
  line-height: 1.3;
  text-transform: uppercase;
}

.batch-meta strong,
.rule-context strong {
  display: block;
  overflow: hidden;
  color: var(--ink);
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  font-weight: 600;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.batch-meta b { font: inherit; }

.field label {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

select {
  width: 100%;
  min-height: 46px;
  padding: 0 38px 0 12px;
  border: 1px solid #aeb8b0;
  border-radius: 0;
  background: white;
  color: var(--ink);
  cursor: pointer;
}

.primary-button,
.secondary-button {
  min-height: 46px;
  border: 1px solid var(--ink);
  border-radius: 0;
  cursor: pointer;
  font-weight: 700;
  transition: background 180ms ease, color 180ms ease, transform 180ms ease;
}

.primary-button {
  padding: 0 18px;
  background: var(--cobalt);
  border-color: var(--cobalt);
  color: white;
}

.primary-button:hover { background: var(--cobalt-dark); }

.primary-button:active,
.secondary-button:active { transform: translateY(1px); }

.results { padding: 0 18px 18px; }

.results-toolbar {
  min-height: 62px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.results-toolbar p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.toolbar-actions { display: flex; gap: 8px; }

.secondary-button {
  min-width: 46px;
  padding: 0 13px;
  background: white;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.secondary-button:hover,
.secondary-button[data-state="success"] {
  background: var(--mint);
}

.secondary-button svg { width: 17px; height: 17px; }

.output-list {
  min-height: 248px;
  max-height: 344px;
  margin: 0;
  padding: 0;
  overflow-y: auto;
  border-top: 1px solid var(--line);
  list-style: none;
  transition: opacity 160ms ease, transform 160ms ease;
}

.output-list.is-refreshing { opacity: 0.55; transform: translateY(2px); }

.output-list li {
  min-height: 49px;
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr) 38px;
  align-items: center;
  border-bottom: 1px solid #e8ece8;
}

.output-list li span {
  color: #89918a;
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
}

.output-list code {
  color: var(--ink);
  font-family: "JetBrains Mono", monospace;
  font-size: 15px;
}

.row-copy {
  width: 34px;
  height: 34px;
  padding: 0;
  display: grid;
  place-items: center;
  border: 0;
  background: transparent;
  color: #6e766f;
  cursor: pointer;
  transition: background 160ms ease, color 160ms ease;
}

.row-copy:hover,
.row-copy[data-state="success"] {
  background: var(--mint);
  color: var(--ink);
}

.row-copy svg { width: 16px; height: 16px; }

.rule-context {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 12px;
  border: 1px solid var(--line);
}

.rule-context > span {
  min-width: 0;
  padding: 9px 10px;
  border-right: 1px solid var(--line);
}

.rule-context > span:last-child { border-right: 0; }

.sr-status {
  min-height: 24px;
  margin: 8px 0 -8px;
  color: var(--cobalt-dark);
  font-size: 13px;
}

.content-band {
  border-top: 1px solid var(--line);
  padding: 72px 0;
}

.section-heading {
  display: grid;
  grid-template-columns: 0.7fr 1.3fr;
  gap: 50px;
  margin-bottom: 38px;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(30px, 4vw, 48px);
}

.section-heading p {
  margin: 4px 0 0;
  max-width: 660px;
  color: var(--muted);
  font-size: 18px;
}

.country-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--ink);
  border-left: 1px solid var(--ink);
}

.country-link {
  min-height: 180px;
  padding: 22px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-right: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  background: var(--surface);
  text-decoration: none;
  transition: background 180ms ease;
}

.country-link:hover { background: var(--mint); }
.country-link[aria-current="page"] { background: #eaf0ff; box-shadow: inset 0 4px 0 var(--cobalt); }

.country-link span {
  color: var(--muted);
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
}

.country-link strong { font-size: 22px; }

.country-link svg { width: 20px; height: 20px; }

.use-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.use-item {
  padding-top: 20px;
  border-top: 3px solid var(--coral);
}

.use-item h3 { margin: 0 0 10px; font-size: 20px; }
.use-item p { margin: 0; color: var(--muted); }

.method-band { background: var(--surface); }

.method-steps {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--ink);
  list-style: none;
}

.method-steps li {
  min-height: 112px;
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 22px;
  align-items: start;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}

.method-steps > li > span {
  color: var(--cobalt);
  font-family: "JetBrains Mono", monospace;
  font-size: 13px;
  font-weight: 600;
}

.method-steps h3 { margin: 0 0 7px; font-size: 21px; }
.method-steps p { max-width: 760px; margin: 0; color: var(--muted); }

.operations-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 26px;
  margin-top: 26px;
  padding: 18px 20px;
  background: var(--ink);
  color: white;
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
}

.operations-strip span::before {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 9px;
  border-radius: 50%;
  background: #69dc91;
}

.source-note {
  margin-top: 36px;
  padding: 22px 0 0;
  display: grid;
  grid-template-columns: 0.6fr 1.4fr;
  gap: 28px;
  border-top: 1px solid var(--ink);
}

.source-note p { margin: 0; color: var(--muted); }

.faq-list { max-width: 860px; margin-left: auto; }

details { border-top: 1px solid var(--line); }
details:last-child { border-bottom: 1px solid var(--line); }

summary {
  min-height: 68px;
  padding: 20px 42px 20px 0;
  position: relative;
  cursor: pointer;
  font-weight: 700;
  list-style: none;
}

summary::-webkit-details-marker { display: none; }
summary::after {
  content: "+";
  position: absolute;
  top: 17px;
  right: 4px;
  color: var(--cobalt);
  font-family: "JetBrains Mono", monospace;
  font-size: 24px;
}

details[open] summary::after { content: "-"; }
details p { margin: -4px 0 22px; color: var(--muted); }

.site-footer {
  padding: 42px 0;
  background: var(--ink);
  color: white;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 30px;
}

.footer-inner p { margin: 0; color: #bac3bb; font-size: 14px; }
.footer-inner small { display: block; color: #849087; font-family: "JetBrains Mono", monospace; font-size: 10px; }
.footer-inner .copyright { margin-top: 8px; color: #bac3bb; font-family: "IBM Plex Sans", system-ui, sans-serif; font-size: 12px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 18px; }
.footer-links a { color: white; font-size: 14px; }

.toast {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 30;
  max-width: min(360px, calc(100% - 40px));
  padding: 12px 16px;
  background: var(--ink);
  border-left: 4px solid #69dc91;
  box-shadow: var(--shadow);
  color: white;
  font-size: 14px;
  font-weight: 600;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 180ms ease, transform 180ms ease;
}

.toast[data-visible="true"] { opacity: 1; transform: translateY(0); }

@media (max-width: 980px) {
  .hero { grid-template-columns: minmax(0, 1fr); gap: 42px; }
  .hero-copy-block { min-width: 0; }
  .hero-copy-block { max-width: 760px; }
  .generator-form { grid-template-columns: 1fr 1fr; }
  .country-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 680px) {
  .header-inner, .page-shell, .footer-inner { width: min(100% - 28px, 1180px); }
  .header-inner { min-height: 64px; }
  .site-nav { gap: 14px; }
  .site-nav a:nth-child(2) { display: none; }
  .hero { padding: 44px 0 48px; }
  h1 { font-size: 42px; }
  .hero-copy { font-size: 17px; }
  .generator-form { grid-template-columns: 1fr; }
  .batch-meta { grid-template-columns: 1fr 1fr; }
  .batch-meta > span:nth-child(2) { border-right: 0; }
  .batch-meta > span:last-child { grid-column: 1 / -1; border-top: 1px solid var(--line); }
  .primary-button { width: 100%; }
  .results-toolbar { align-items: flex-start; flex-direction: column; padding: 14px 0; }
  .toolbar-actions { width: 100%; }
  .secondary-button { flex: 1; }
  .section-heading { grid-template-columns: 1fr; gap: 12px; }
  .rule-context { grid-template-columns: 1fr; }
  .rule-context > span { border-right: 0; border-bottom: 1px solid var(--line); }
  .rule-context > span:last-child { border-bottom: 0; }
  .country-grid, .use-grid { grid-template-columns: 1fr; }
  .country-link { min-height: 140px; }
  .method-steps li { grid-template-columns: 46px 1fr; gap: 12px; }
  .source-note { grid-template-columns: 1fr; gap: 8px; }
  .footer-inner { flex-direction: column; }
  .toast { right: 14px; bottom: 14px; max-width: calc(100% - 28px); }
}

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