:root {
  --converter-primary: #4f46e5;
  --converter-primary-dark: #4338ca;
  --converter-text: #0f172a;
  --converter-muted: #52627b;
  --converter-border: #dbeafe;
  --converter-surface: #ffffff;
  --converter-soft: #f8fbff;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  background: var(--converter-soft);
  color: var(--converter-text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

a { color: inherit; }

.converter-nav {
  background: rgba(255,255,255,.96);
  border-bottom: 1px solid var(--converter-border);
  box-shadow: 0 8px 24px rgba(15,23,42,.04);
}

.converter-nav-inner {
  align-items: center;
  display: flex;
  gap: 24px;
  justify-content: space-between;
  margin: 0 auto;
  max-width: 1200px;
  min-height: 88px;
  padding: 10px 20px;
}

.converter-brand img { display: block; height: 72px; max-width: 240px; object-fit: contain; }
.converter-nav-links { display: flex; gap: 8px; list-style: none; margin: 0; padding: 0; }
.converter-nav-links a { border-radius: 10px; color: #475569; font-size: 15px; font-weight: 700; padding: 10px 13px; text-decoration: none; }
.converter-nav-links a:hover, .converter-nav-links a:focus-visible, .converter-nav-links .active { background: #eef2ff; color: var(--converter-primary); }

.converter-page { margin: 0 auto; max-width: 1120px; padding: 22px 20px 56px; }
.converter-breadcrumb { color: #64748b; font-size: 14px; margin-bottom: 16px; }
.converter-breadcrumb a { color: var(--converter-primary); text-decoration: none; }
.converter-hero { text-align: center; }
.converter-kicker { background: #eef2ff; border: 1px solid #c7d2fe; border-radius: 999px; color: var(--converter-primary-dark); display: inline-flex; font-size: 13px; font-weight: 800; padding: 6px 12px; }
.converter-hero h1 { font-size: clamp(30px, 5vw, 48px); letter-spacing: -.035em; line-height: 1.1; margin: 14px 0 12px; }
.converter-lead { color: var(--converter-muted); font-size: clamp(16px, 2vw, 19px); margin: 0 auto; max-width: 760px; }
.converter-trust { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin: 18px 0 24px; }
.converter-trust span { background: #fff; border: 1px solid var(--converter-border); border-radius: 999px; color: #334155; font-size: 13px; font-weight: 700; padding: 7px 11px; }

.converter-tool-shell { background: #fff; border: 1px solid var(--converter-border); border-radius: 20px; box-shadow: 0 18px 46px rgba(15,23,42,.08); overflow: hidden; }
.converter-tool-frame { border: 0; display: block; min-height: 620px; width: 100%; }
.converter-noscript { padding: 28px; text-align: center; }
.converter-noscript a { color: var(--converter-primary); font-weight: 800; }

.converter-content { display: grid; gap: 22px; grid-template-columns: 1.2fr .8fr; margin-top: 30px; }
.converter-card { background: var(--converter-surface); border: 1px solid var(--converter-border); border-radius: 18px; padding: 24px; }
.converter-card h2 { font-size: 24px; letter-spacing: -.02em; margin: 0 0 12px; }
.converter-card ol { margin: 0; padding-left: 22px; }
.converter-card li + li { margin-top: 8px; }
.converter-note { color: var(--converter-muted); margin: 14px 0 0; }

.converter-faq { margin-top: 30px; }
.converter-faq h2, .related-converters h2 { font-size: 27px; letter-spacing: -.025em; margin: 0 0 16px; text-align: center; }
.converter-faq-list { display: grid; gap: 12px; }
.converter-faq details { background: #fff; border: 1px solid var(--converter-border); border-radius: 14px; padding: 16px 18px; }
.converter-faq summary { cursor: pointer; font-weight: 800; }
.converter-faq p { color: var(--converter-muted); margin: 10px 0 0; }

.related-converters { margin-top: 34px; }
.related-grid { display: grid; gap: 12px; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.related-grid a { background: #fff; border: 1px solid var(--converter-border); border-radius: 14px; color: var(--converter-primary-dark); font-weight: 800; padding: 16px; text-align: center; text-decoration: none; transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease; }
.related-grid a:hover, .related-grid a:focus-visible { border-color: #a5b4fc; box-shadow: 0 10px 24px rgba(79,70,229,.1); transform: translateY(-2px); }

.converter-footer { background: #0f172a; color: #cbd5e1; padding: 28px 20px; text-align: center; }
.converter-footer a { color: #fff; font-weight: 700; text-decoration: none; }

@media (max-width: 760px) {
  .converter-nav-inner { min-height: 72px; padding: 8px 14px; }
  .converter-brand img { height: 58px; max-width: 190px; }
  .converter-nav-links li:not(:first-child):not(:last-child) { display: none; }
  .converter-nav-links a { font-size: 14px; padding: 9px 10px; }
  .converter-page { padding: 18px 14px 42px; }
  .converter-content { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .converter-card { padding: 20px; }
}