:root {
  --wps: #e10600;
  --wps-dark: #b80500;
  --ink: #1a1d23;
  --muted: #5a6170;
  --paper: #f3f5f8;
  --line: #e4e8ee;
  --navy: #16181d;
}

html { scroll-behavior: smooth; }

body {
  font-family: "Plus Jakarta Sans", Inter, ui-sans-serif, system-ui, sans-serif;
  color: var(--ink);
  background: #fff;
}

.font-display {
  font-family: "Plus Jakarta Sans", Inter, ui-sans-serif, system-ui, sans-serif;
  letter-spacing: -0.035em;
}

#site-header {
  transition: box-shadow .2s ease, background .2s ease;
}

#site-header.is-scrolled {
  box-shadow: 0 8px 24px rgba(22, 24, 29, .06);
  background: rgba(255, 255, 255, .94);
  backdrop-filter: blur(14px);
}

.nav-link {
  color: #3a4150;
  font-size: .9rem;
  font-weight: 650;
}

.nav-link:hover,
.nav-link[aria-current="page"] { color: var(--wps); }

.drop { position: relative; }

.drop-menu {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  min-width: 250px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: 0 16px 40px rgba(22, 24, 29, .1);
  padding: .45rem;
  display: none;
  z-index: 40;
}

.drop.is-open .drop-menu { display: block; }

.drop-menu a {
  display: block;
  padding: .65rem .75rem;
  border-radius: 10px;
  font-size: .88rem;
  font-weight: 650;
  color: #1d2430;
}

.drop-menu a:hover { background: var(--paper); color: var(--wps); }

.mobile-panel {
  display: none;
  border-top: 1px solid var(--line);
  background: #fff;
}

.mobile-panel.is-open { display: block; }

.btn-wps {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  background: var(--wps);
  color: #fff;
  font-weight: 700;
  border-radius: 12px;
  padding: .82rem 1.2rem;
  transition: background .15s ease, transform .15s ease;
}

.btn-wps:hover { background: var(--wps-dark); transform: translateY(-1px); }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  font-weight: 700;
  border-radius: 12px;
  padding: .82rem 1.2rem;
}

.btn-ghost:hover { border-color: var(--wps); color: var(--wps); }

.chip {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 999px;
  padding: .4rem .8rem;
  font-size: .82rem;
  font-weight: 650;
}

.step-num {
  width: 28px;
  min-width: 28px;
  height: 28px;
  border-radius: 8px;
  background: #ffe8e6;
  color: var(--wps);
  display: grid;
  place-items: center;
  font-size: .78rem;
  font-weight: 800;
  flex-shrink: 0;
  overflow: hidden;
}

.step-list,
ol:has(.step-num),
ul:has(.step-num) {
  list-style: none;
  padding-inline-start: 0;
  width: 100%;
}

.step-list > li,
ol:has(.step-num) > li,
ul:has(.step-num) > li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  width: 100%;
}

.step-list > li > span:not(.step-num),
ol:has(.step-num) > li > span:not(.step-num),
ul:has(.step-num) > li > span:not(.step-num) {
  flex: 1 1 auto;
  min-width: 0;
  overflow-wrap: break-word;
  word-break: normal;
}

.prose-home p { color: #3e4553; line-height: 1.8; }
.prose-home a { color: var(--wps-dark); font-weight: 700; text-underline-offset: 3px; }

/* CJK/Hebrew/Hindi can wrap at 1 character. Tailwind v4 1fr tracks then
   collapse sidebars and flex boxes into a single-glyph column. */
.grid,
.prose-guide,
.prose-home,
aside,
.table-wrap {
  min-width: 0;
}

.grid > *,
.prose-guide > *,
aside > * {
  min-width: 0;
  max-width: 100%;
}

aside [class*="sticky"] {
  width: 100%;
  max-width: 100%;
}

p, li, h1, h2, h3, h4, td, th, aside {
  overflow-wrap: break-word;
  word-break: normal;
}

@media (min-width: 768px) {
  .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .md\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .md\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (min-width: 1024px) {
  .lg\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .lg\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .lg\:grid-cols-12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }
}

.faq-item + .faq-item { border-top: 1px solid var(--line); }
.faq-btn[aria-expanded="true"] .faq-icon { transform: rotate(45deg); }

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

.site-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .94rem;
}

.site-table th,
.site-table td {
  border-bottom: 1px solid var(--line);
  padding: .9rem .75rem;
  text-align: left;
  vertical-align: top;
}

.site-table th { background: var(--paper); font-weight: 750; }

.back-to-top {
  position: fixed;
  right: 1.2rem;
  bottom: 1.2rem;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--navy);
  color: #fff;
  display: grid;
  place-items: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s ease;
  z-index: 30;
}

.back-to-top.is-visible { opacity: 1; pointer-events: auto; }

.toast {
  position: fixed;
  left: 50%;
  bottom: 1.4rem;
  transform: translateX(-50%) translateY(12px);
  background: var(--navy);
  color: #fff;
  padding: .75rem 1rem;
  border-radius: 12px;
  font-size: .9rem;
  opacity: 0;
  pointer-events: none;
  z-index: 50;
}

.toast.is-on {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.lang-switch { position: relative; }

.lang-switch-btn {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  height: 2.5rem;
  padding: 0 .75rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  color: var(--ink);
  font-size: .75rem;
  font-weight: 800;
  cursor: pointer;
}

.lang-switch-btn .fa-globe { color: var(--wps); font-size: .8rem; }
.lang-switch-btn .fa-chevron-down { font-size: .62rem; opacity: .55; transition: transform .18s ease; }
.lang-switch-btn:hover,
.lang-switch.is-open .lang-switch-btn { border-color: #cfd6e0; }
.lang-switch.is-open .fa-chevron-down { transform: rotate(180deg); }

.lang-switch-menu {
  position: absolute;
  top: calc(100% + .4rem);
  inset-inline-end: 0;
  min-width: 11.5rem;
  padding: .35rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
  box-shadow: 0 16px 40px rgba(22, 24, 29, .1);
  z-index: 50;
}

.lang-switch-menu a {
  display: block;
  padding: .5rem .7rem;
  border-radius: 10px;
  color: var(--ink);
  text-decoration: none;
  font-size: .8125rem;
  font-weight: 650;
}

.lang-switch-menu a:hover { background: var(--paper); color: var(--wps); }
.lang-switch-menu a[aria-current="true"] { background: var(--navy); color: #fff; }

html[lang^="zh"] body { font-family: "Noto Sans SC", "Plus Jakarta Sans", sans-serif; }
html[lang="ja"] body { font-family: "Noto Sans JP", "Plus Jakarta Sans", sans-serif; }
html[lang="he"] body { font-family: "Noto Sans Hebrew", "Plus Jakarta Sans", sans-serif; }
html[lang="hi"] body { font-family: "Noto Sans Devanagari", "Plus Jakarta Sans", sans-serif; }
html[lang="ru"] body { font-family: "Noto Sans", "Plus Jakarta Sans", sans-serif; }

[dir="rtl"] .font-display { letter-spacing: 0; }
[dir="rtl"] .drop-menu { left: auto; right: 0; }
[dir="rtl"] .list-disc { padding-left: 0; padding-right: 1.25rem; }
[dir="rtl"] .list-decimal { padding-left: 0; padding-right: 1.25rem; }
[dir="rtl"] .step-list,
[dir="rtl"] ol:has(.step-num),
[dir="rtl"] ul:has(.step-num) { padding-inline-start: 0; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}