/* ============================================================
   styles.css -- shared across all Virtuse pages
   Extracted from the real common core of all 21 page stylesheets.
   Generated as part of the CSS de-duplication pass -- see git log.
   ============================================================ */

:root {
  --btc-orange: #f7931a;
  --btc-orange-light: #ffb84d;
  --dark: #0d1421;
  --dark-lighter: #111a2b;
  --dark-card: #161f30;
  --dark-card-hover: #1c2740;
  --text: #e6edf3;
  --text-muted: #8b949e;
  --text-dim: #484f58;
  --border: #30363d;
  --border-hover: #484f58;
  --green: #3fb950;
  --section-spacing: 100px;
  --green-bg: rgba(63, 185, 80, 0.1);
  --red: #f85149;
  --red-bg: rgba(248, 81, 73, 0.1);
  --bg: #0d1421;
  --card: #161f30;
  --muted: #8b949e;
  --dim: #484f58;
  --orange: #f7931a;
  --blue: #58a6ff;
  --max-width: 1200px;
  --radius: 12px;
  --radius-lg: 16px;
  --radius-sm: 8px;
  --radius-xl: 20px;
  --btc-orange-dark: #e8850f;
  --btc-orange-glow: rgba(247, 147, 26, 0.15);
  --btc-gold: #ffd700;
  --btc-dark: #c47a14;
  --card-hover: #22282f;
  --orange-dim: #e8850f;
  --purple: #9b59ff;
}

/* mobile hamburger menu + logo -- byte-identical across all 21 pages */
a.nav-logo, .nav-logo {
  display: inline-flex !important;
  align-items: flex-end;
  gap: 1px;
  font-weight: 800;
  font-size: 19px;
  color: #e6edf3 !important;
  text-decoration: none !important;
  white-space: nowrap;
  transition: opacity 0.2s;
}

a.nav-logo:hover { opacity: 0.85; }

.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 6px;
  position: fixed;
  top: 18px;
  right: 16px;
  width: 36px;
  height: 36px;
  background: transparent;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  padding: 0;
  z-index: 1001;
  transition: background 0.2s ease;
  -webkit-tap-highlight-color: transparent;
}

.nav-hamburger:active { background: rgba(255, 255, 255, 0.06); }

.nav-link-num,
.nav-link-arrow {
  display: none;
}

.nav-hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background: #e6edf3;
  border-radius: 2px;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.2s ease;
}

body.nav-open .nav-hamburger span:nth-child(1) { transform: translateY(8px) rotate(45deg); }

body.nav-open .nav-hamburger span:nth-child(2) { opacity: 0; transform: scaleX(0); }

body.nav-open .nav-hamburger span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

.nav-links-cta-item { display: none; }


/* present on 4/21 pages */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* present on 21/21 pages */
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--dark);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

/* present on 19/21 pages */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 48px;
  border-bottom: 1px solid var(--border);
  background: rgba(13, 20, 33, 0.95);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 100;
}

/* present on 21/21 pages */
.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
}

/* present on 21/21 pages */
.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: 8px;
  transition: all 0.2s;
}

/* present on 21/21 pages */
.nav-cta {
  display: inline-flex;
  align-items: center;
  background: var(--btc-orange);
  color: white;
  border: none;
  padding: 10px 24px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  transition: background 0.2s;
}

/* present on 21/21 pages */
.footer-main {
  background: var(--dark);
  border-top: 1px solid var(--border);
  padding: 60px 48px 30px;
}

/* present on 21/21 pages */
.footer-bottom {
  max-width: 1200px;
  margin: 40px auto 0;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  text-align: center;
}

/* present on 21/21 pages */
.footer-col h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 16px;
  text-transform: none;
}

/* present on 21/21 pages */
.footer-columns {
  display: flex;
  gap: 80px;
  flex-wrap: wrap;
}

/* ============================================================
   LANGUAGE SWITCHER -- shared component for the i18n system.
   Base pill (.lang-switch/.lang-opt/.lang-flag) originated in
   blog.html/blog-sk.html's hero; canonicalized here so any page
   gets it just by linking styles.css. .nav-lang-switch is a
   compact variant sized to sit inline in the sticky nav bar next
   to the CTA button -- see TRANSLATION-SYSTEM.md.
   ============================================================ */
.lang-switch {
  display: inline-flex;
  align-items: center;
  background: var(--dark-card);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 4px;
  gap: 2px;
}

.lang-opt {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--text-muted);
  padding: 8px 16px;
  border-radius: 100px;
  transition: all 0.2s;
}

.lang-opt:hover { color: var(--text); }

.lang-opt.active {
  background: var(--btc-orange);
  color: #0d0902;
}

.lang-flag { font-size: 15px; line-height: 1; }

.nav-lang-switch {
  margin-right: 12px;
}

.nav-lang-switch .lang-opt {
  padding: 6px 11px;
  font-size: 12px;
  gap: 5px;
}

.nav-lang-switch .lang-flag { font-size: 13px; }

/* mobile-menu counterpart: sits below the full-width CTA button
   inside the hamburger overlay (li.nav-links-lang-item, same
   breakpoint every page already uses for .nav-links/.nav-hamburger) */
.nav-links-lang-item { display: none; }

@media (max-width: 1024px) {
  .nav-lang-switch { display: none; }

  .nav-links-lang-item {
    display: flex;
    justify-content: center;
    margin-top: 18px;
  }
}