:root {
  --bg: #f5f8f6;
  --paper: #ffffff;
  --ink: #132018;
  --muted: #53645b;
  --line: #dbe6df;
  --brand: #1daa4b;
  --brand-dark: #137736;
  --mint: #dcf8e7;
  --blue: #133a5e;
  --shadow: 0 18px 55px rgba(19, 32, 24, 0.12);
  color-scheme: light;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 12% 0%, rgba(29, 170, 75, 0.18), transparent 32rem),
    linear-gradient(120deg, rgba(255, 209, 102, 0.18), transparent 36%),
    linear-gradient(180deg, #f8fbf9 0%, #eef5f0 100%);
  color: var(--ink);
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.nav {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  font-weight: 900;
  letter-spacing: 0;
}

.brand img {
  width: 156px;
  height: auto;
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-links a {
  text-decoration: none;
  color: var(--muted);
  font-weight: 800;
  font-size: 0.92rem;
  padding: 10px 12px;
  border-radius: 8px;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--brand-dark);
  background: var(--mint);
}

.hero {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 34px 0 28px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.9fr);
  gap: 34px;
  align-items: center;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 98px 16px auto;
  height: 520px;
  z-index: -1;
  background:
    linear-gradient(135deg, rgba(19, 58, 94, 0.08), transparent 44%),
    linear-gradient(315deg, rgba(29, 170, 75, 0.14), transparent 48%);
  border: 1px solid rgba(29, 170, 75, 0.12);
  border-radius: 18px;
}

.eyebrow {
  color: var(--brand-dark);
  font-weight: 900;
  text-transform: uppercase;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  margin: 0 0 12px;
}

h1,
h2,
h3 {
  margin: 0;
  letter-spacing: 0;
  line-height: 1.06;
}

h1 {
  font-size: clamp(2.25rem, 5.4vw, 5.4rem);
  max-width: 820px;
}

.tool-title {
  font-size: clamp(2.1rem, 4vw, 4.4rem);
}

h2 {
  font-size: clamp(1.65rem, 2.7vw, 2.9rem);
}

h3 {
  font-size: 1.18rem;
}

p {
  color: var(--muted);
  line-height: 1.68;
}

.hero-copy {
  font-size: 1.18rem;
  max-width: 680px;
}

.hero-actions,
.inline-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
  margin-top: 22px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 24px;
  max-width: 680px;
}

.hero-stat {
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px;
}

.hero-stat strong {
  display: block;
  font-size: 1.3rem;
  color: var(--ink);
}

.hero-stat span {
  color: var(--muted);
  font-weight: 800;
  font-size: 0.82rem;
}

.hero-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.hero-chip-row a {
  text-decoration: none;
  color: var(--brand-dark);
  background: rgba(220, 248, 231, 0.86);
  border: 1px solid rgba(29, 170, 75, 0.22);
  border-radius: 999px;
  padding: 9px 12px;
  font-weight: 900;
}

.button,
button {
  border: 0;
  background: var(--brand);
  color: #07150c;
  font-weight: 900;
  padding: 13px 18px;
  border-radius: 8px;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
}

.button.secondary,
button.secondary {
  background: #ffffff;
  color: var(--ink);
  border: 1px solid var(--line);
}

.button:hover,
button:hover {
  filter: brightness(0.97);
}

.mini-tool,
.tool-panel {
  background: var(--paper);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  border-radius: 12px;
  padding: 20px;
}

.mini-tool h2 {
  font-size: 1.28rem;
  margin-bottom: 8px;
}

.hero-tool-surface {
  position: relative;
  overflow: hidden;
}

.tool-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 14px;
}

.tool-tabs span {
  color: var(--brand-dark);
  background: var(--mint);
  border: 1px solid rgba(29, 170, 75, 0.18);
  border-radius: 999px;
  padding: 7px 10px;
  font-size: 0.78rem;
  font-weight: 900;
}

.artifact-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin-top: 14px;
}

.artifact-strip a {
  text-decoration: none;
  background: #f4fbf7;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px;
}

.artifact-strip strong,
.artifact-strip span {
  display: block;
}

.artifact-strip span {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
  margin-top: 4px;
}

textarea,
input,
select {
  width: 100%;
  border: 1px solid #c9d8cf;
  border-radius: 8px;
  background: #ffffff;
  color: var(--ink);
  padding: 14px 15px;
  font: inherit;
  font-weight: 650;
  outline: none;
}

textarea {
  min-height: 180px;
  resize: vertical;
}

textarea:focus,
input:focus,
select:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 4px rgba(29, 170, 75, 0.14);
}

.home-variants,
.variant-list,
.symbol-grid {
  display: grid;
  gap: 10px;
}

.home-variants {
  margin-top: 14px;
}

.variant-card,
.symbol-card,
.example-card,
.tool-card,
.info-card {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 10px;
}

.variant-card {
  padding: 12px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  align-items: center;
}

.variant-label {
  display: block;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.variant-text {
  font-size: 1.16rem;
  overflow-wrap: anywhere;
  line-height: 1.42;
}

.copy-small {
  min-height: 36px;
  padding: 8px 11px;
  font-size: 0.82rem;
}

.section {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 42px 0;
}

.compact-section {
  padding-top: 24px;
  padding-bottom: 24px;
}

.tool-finder {
  display: grid;
  grid-template-columns: minmax(260px, 1fr) auto;
  gap: 12px;
  align-items: center;
  background: #ffffff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  border-radius: 12px;
  padding: 14px;
  margin-top: 20px;
}

.tool-finder input {
  min-height: 50px;
}

.category-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.category-nav a {
  text-decoration: none;
}

.all-tools-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  margin-top: 18px;
}

.tool-list-link {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
  text-decoration: none;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  font-weight: 900;
}

.tool-list-link:hover {
  border-color: rgba(29, 170, 75, 0.55);
}

.tool-list-link small {
  color: var(--muted);
  font-weight: 800;
  white-space: nowrap;
}

.section-intro {
  max-width: 760px;
  margin-bottom: 22px;
}

.tool-grid,
.info-grid,
.example-grid,
.cluster-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.tool-card {
  padding: 18px;
  text-decoration: none;
  min-height: 172px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
}

.featured-grid .tool-card:nth-child(1),
.featured-grid .tool-card:nth-child(4),
.featured-grid .tool-card:nth-child(7) {
  background: linear-gradient(180deg, #ffffff, #f0fbf4);
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.category-card {
  display: block;
  text-decoration: none;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 18px;
  min-height: 180px;
  box-shadow: 0 12px 34px rgba(19, 32, 24, 0.08);
}

.category-card:hover {
  border-color: rgba(29, 170, 75, 0.55);
  transform: translateY(-2px);
  transition: transform 160ms ease, border-color 160ms ease;
}

.category-card span {
  display: inline-flex;
  color: var(--brand-dark);
  background: var(--mint);
  border-radius: 999px;
  padding: 6px 9px;
  font-weight: 900;
  font-size: 0.78rem;
  margin-bottom: 12px;
}

.category-card p {
  margin-bottom: 0;
}

.category-card-grid {
  margin-top: 18px;
}

.tool-card::after {
  content: "";
  position: absolute;
  inset: auto 14px 14px auto;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background:
    linear-gradient(135deg, rgba(29, 170, 75, 0.2), rgba(255, 209, 102, 0.34));
}

.tool-card:hover {
  border-color: rgba(29, 170, 75, 0.55);
  transform: translateY(-2px);
  transition: transform 160ms ease, border-color 160ms ease;
}

.tool-card p,
.info-card p,
.example-card p {
  margin-bottom: 0;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.tag {
  display: inline-flex;
  padding: 7px 10px;
  border-radius: 999px;
  background: var(--mint);
  color: var(--brand-dark);
  font-size: 0.82rem;
  font-weight: 900;
}

.tool-hero {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 36px 0 20px;
}

.tool-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  align-items: start;
}

.field-label {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  color: var(--ink);
  font-weight: 900;
  margin: 0 0 8px;
  align-items: center;
}

.output-box {
  min-height: 180px;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  background: #f9fcfa;
  border: 1px solid #c9d8cf;
  border-radius: 8px;
  padding: 14px 15px;
  line-height: 1.6;
}

.lookup-tool {
  display: grid;
  gap: 14px;
}

.lookup-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
}

.lookup-results {
  display: grid;
  gap: 12px;
}

.lookup-card {
  background: #f9fcfa;
  border: 1px solid #c9d8cf;
  border-radius: 10px;
  padding: 16px;
}

.lookup-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  margin-bottom: 10px;
}

.lookup-head strong {
  font-size: 1.28rem;
}

.lookup-head span {
  color: var(--brand-dark);
  background: var(--mint);
  border-radius: 999px;
  padding: 6px 9px;
  font-weight: 900;
}

.emoji-large {
  font-size: 2.2rem;
  vertical-align: middle;
}

.platform-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
  margin: 12px 0;
}

.platform-grid div {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
}

.platform-grid b,
.platform-grid span {
  display: block;
}

.platform-grid span {
  color: var(--muted);
  line-height: 1.45;
  margin-top: 5px;
}

.app-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.toolbar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 12px;
}

.samples {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.sample-chip {
  background: #ffffff;
  border: 1px solid var(--line);
  color: var(--muted);
  border-radius: 999px;
  padding: 8px 10px;
  min-height: 36px;
}

.content-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 24px;
  align-items: start;
}

.article-section {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 16px;
}

.article-section ul,
.article-section ol {
  color: var(--muted);
  line-height: 1.75;
}

.sidebar-box {
  position: sticky;
  top: 94px;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 18px;
}

.sidebar-box a {
  display: block;
  color: var(--brand-dark);
  font-weight: 850;
  text-decoration: none;
  padding: 8px 0;
  border-bottom: 1px solid #eef4f0;
}

.breadcrumb {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 16px;
  color: var(--muted);
  font-weight: 850;
}

.breadcrumb a {
  color: var(--brand-dark);
  text-decoration: none;
}

.jump-links {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 18px;
}

.jump-links a {
  text-decoration: none;
}

.symbol-grid {
  grid-template-columns: repeat(auto-fill, minmax(82px, 1fr));
}

.symbol-card {
  padding: 12px 8px;
  min-height: 70px;
  font-size: 1.45rem;
  font-weight: 900;
  color: var(--ink);
}

.symbol-card span {
  display: block;
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 800;
  margin-top: 3px;
}

.notice {
  background: #f0fbf4;
  border: 1px solid #bee8cc;
  color: #134b28;
  border-radius: 10px;
  padding: 13px 14px;
  margin-top: 14px;
  font-weight: 750;
}

.site-footer {
  margin-top: 52px;
  border-top: 1px solid var(--line);
  background:
    linear-gradient(180deg, #ffffff, #f1f7f3);
}

.footer-inner {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 34px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  color: var(--muted);
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(260px, 1.2fr) minmax(180px, 0.8fr) minmax(300px, 1.2fr) minmax(160px, 0.6fr);
  align-items: start;
}

.footer-brand p {
  max-width: 360px;
  margin: 14px 0;
}

.footer-column {
  display: grid;
  gap: 8px;
}

.footer-column-wide {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: 14px;
}

.footer-column h2 {
  grid-column: 1 / -1;
  color: var(--ink);
  font-size: 1rem;
  margin-bottom: 4px;
}

.footer-column a,
.footer-links a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 800;
  line-height: 1.35;
}

.footer-column a:hover {
  color: var(--brand-dark);
}

.simple-page {
  width: min(900px, calc(100% - 32px));
  margin: 0 auto;
  padding: 42px 0;
}

.simple-page .article-section {
  padding: 30px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 860px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
    padding: 14px 0;
  }

  .nav-links {
    justify-content: flex-start;
  }

  .hero,
  .tool-layout,
  .content-body {
    grid-template-columns: 1fr;
  }

  .tool-grid,
  .info-grid,
  .example-grid,
  .cluster-grid,
  .category-grid,
  .all-tools-list,
  .footer-grid,
  .platform-grid {
    grid-template-columns: 1fr;
  }

  .artifact-strip {
    grid-template-columns: 1fr;
  }

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

  .sidebar-box {
    position: static;
  }

  .brand img {
    width: 142px;
  }

  .hero-stats,
  .tool-finder {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .nav,
  .section,
  .hero,
  .tool-hero,
  .footer-inner,
  .simple-page {
    width: min(100% - 22px, 1180px);
  }

  .variant-card {
    grid-template-columns: 1fr;
  }

  .button,
  button {
    width: 100%;
  }
}