/* Linxol legal/documentation site — shared styles */

:root {
  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;

  --color-bg: #f7f9fc;
  --color-bg-alt: #eef2f8;
  --color-surface: #ffffff;
  --color-navy: #0b1e3d;
  --color-navy-soft: #33456a;
  --color-blue: #0a5fd6;
  --color-blue-dark: #084aa8;
  --color-blue-light: #2fa1e8;
  --color-border: #dde5f0;
  --color-focus: #0a5fd6;
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --max-width: 1080px;
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-navy);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img, svg {
  max-width: 100%;
  display: block;
}

a {
  color: var(--color-blue);
  text-decoration: underline;
  text-underline-offset: 2px;
}

a:hover {
  color: var(--color-blue-dark);
}

:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-navy);
  color: #fff;
  padding: 0.75rem 1.25rem;
  border-radius: 0 0 var(--radius-sm) 0;
  z-index: 100;
  text-decoration: none;
}

.skip-link:focus {
  left: 0;
}

/* Header */

.site-header {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
  position: sticky;
  top: 0;
  z-index: 20;
}

.site-header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.9rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--color-navy);
  font-weight: 700;
  font-size: 1.15rem;
}

.brand img {
  width: 28px;
  height: 28px;
  border-radius: 7px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 1.4rem;
  flex-wrap: wrap;
}

.main-nav a {
  color: var(--color-navy-soft);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.35rem 0.1rem;
  border-bottom: 2px solid transparent;
}

.main-nav a:hover,
.main-nav a[aria-current="page"] {
  color: var(--color-blue);
  border-bottom-color: var(--color-blue);
}

.lang-toggle {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.9rem;
}

.lang-toggle button {
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  color: var(--color-navy-soft);
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
  cursor: pointer;
  min-height: 32px;
}

.lang-toggle button[aria-pressed="true"] {
  background: var(--color-blue);
  border-color: var(--color-blue);
  color: #fff;
}

/* Layout */

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2.5rem 1.5rem 5rem;
}

.narrow {
  max-width: 760px;
}

.page-header {
  margin-bottom: 2.5rem;
}

.page-header h1 {
  font-size: clamp(1.7rem, 4vw, 2.4rem);
  margin: 0 0 0.5rem;
  letter-spacing: -0.01em;
}

.page-meta {
  color: var(--color-navy-soft);
  font-size: 0.95rem;
}

h1, h2, h3, h4 {
  color: var(--color-navy);
  line-height: 1.25;
  scroll-margin-top: 5.5rem;
}

h2 {
  font-size: 1.4rem;
  margin-top: 2.75rem;
  border-top: 1px solid var(--color-border);
  padding-top: 1.75rem;
}

section:first-of-type h2:first-child,
h2:first-child {
  border-top: none;
  padding-top: 0;
}

h3 {
  font-size: 1.1rem;
  margin-top: 1.75rem;
}

p {
  max-width: 72ch;
}

ul, ol {
  max-width: 72ch;
  padding-left: 1.35rem;
}

li {
  margin: 0.35rem 0;
}

/* Cards */

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.75rem;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin: 1.75rem 0;
}

.doc-card {
  display: block;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.4rem 1.5rem;
  text-decoration: none;
  color: var(--color-navy);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.doc-card:hover {
  border-color: var(--color-blue);
  box-shadow: 0 4px 18px rgba(10, 95, 214, 0.08);
}

.doc-card h3 {
  margin: 0 0 0.4rem;
  color: var(--color-blue-dark);
  font-size: 1.05rem;
}

.doc-card p {
  margin: 0;
  color: var(--color-navy-soft);
  font-size: 0.92rem;
}

/* Tables */

.table-wrap {
  overflow-x: auto;
  margin: 1.25rem 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

table {
  border-collapse: collapse;
  width: 100%;
  min-width: 480px;
  font-size: 0.92rem;
}

th, td {
  text-align: left;
  padding: 0.7rem 0.9rem;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

th {
  background: var(--color-bg-alt);
  font-weight: 600;
}

tr:last-child td {
  border-bottom: none;
}

/* Notice boxes */

.notice {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-blue);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  margin: 1.25rem 0;
  font-size: 0.95rem;
}

.notice strong {
  color: var(--color-blue-dark);
}

/* TOC */

.toc {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
  font-size: 0.92rem;
}

.toc h2 {
  font-size: 1rem;
  margin: 0 0 0.6rem;
  border: none;
  padding: 0;
}

.toc ol {
  margin: 0;
  padding-left: 1.1rem;
  columns: 1;
}

.toc a {
  text-decoration: none;
  color: var(--color-navy-soft);
}

.toc a:hover {
  color: var(--color-blue);
}

.guide-layout {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 2.5rem;
  align-items: start;
}

.guide-layout .toc {
  position: sticky;
  top: 5.5rem;
}

.guide-toc-mobile {
  display: none;
}

@media (max-width: 860px) {
  .guide-layout {
    display: block;
  }
  .guide-layout > .toc {
    display: none;
  }
  .guide-toc-mobile {
    display: block;
    margin-bottom: 2rem;
  }
  .guide-toc-mobile summary {
    cursor: pointer;
    font-weight: 600;
    padding: 1rem 1.25rem;
  }
  .guide-toc-mobile[open] summary {
    border-bottom: 1px solid var(--color-border);
  }
  .guide-toc-mobile .toc-inner {
    padding: 1rem 1.5rem 1.25rem;
  }
}

/* Buttons/links */

.btn {
  display: inline-block;
  background: var(--color-blue);
  color: #fff;
  text-decoration: none;
  padding: 0.65rem 1.3rem;
  border-radius: 999px;
  font-weight: 600;
  min-height: 44px;
  line-height: 1.3;
}

.btn-icon {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
}

.btn-icon svg {
  width: 20px;
  height: 20px;
  flex: none;
  fill: currentColor;
}

.btn:hover {
  background: var(--color-blue-dark);
  color: #fff;
}

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-blue-dark);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  border-color: var(--color-blue);
  background: var(--color-bg-alt);
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.5rem 0;
}

/* Hero (home) */

.hero {
  text-align: center;
  padding: 4rem 1.5rem 3rem;
}

.hero .company {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-navy-soft);
  letter-spacing: 0.02em;
}

.hero h1 {
  font-size: clamp(2.4rem, 7vw, 3.6rem);
  margin: 0.5rem 0 1.1rem;
  letter-spacing: -0.02em;
}

.hero p.tagline {
  font-size: 1.15rem;
  color: var(--color-navy-soft);
  max-width: 46ch;
  margin: 0 auto 2rem;
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
  margin-top: 3rem;
}

.site-footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  justify-content: space-between;
  align-items: flex-start;
}

.footer-brand {
  font-weight: 700;
  margin: 0 0 0.35rem;
}

.footer-support {
  color: var(--color-navy-soft);
  font-size: 0.92rem;
  margin: 0;
}

.footer-links {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links a {
  color: var(--color-navy-soft);
  text-decoration: none;
  font-size: 0.92rem;
}

.footer-links a:hover {
  color: var(--color-blue);
}

.footer-copy {
  width: 100%;
  color: var(--color-navy-soft);
  font-size: 0.85rem;
  border-top: 1px solid var(--color-border);
  padding-top: 1.25rem;
  margin-top: 0.5rem;
}

/* Language visibility (JS-controlled; defaults to Korean without JS) */

[data-lang="en"] {
  display: none;
}

html[data-active-lang="en"] [data-lang="en"] {
  display: block;
}

html[data-active-lang="en"] [data-lang="ko"] {
  display: none;
}

/* 404 */

.error-page {
  text-align: center;
  padding: 5rem 1.5rem;
}

.error-page .code {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-blue);
  letter-spacing: 0.08em;
}

.error-page h1 {
  margin: 0.5rem 0 1rem;
}

@media (max-width: 600px) {
  .site-header-inner {
    padding: 0.75rem 1.1rem;
  }
  main {
    padding: 1.75rem 1.1rem 4rem;
  }
  .main-nav {
    gap: 0.9rem;
  }
  .hero {
    padding: 2.75rem 1rem 2rem;
  }
}