:root {
  --bg: #ffffff;
  --bg-2: #f8fafc;
  --bg-3: #f1f5f9;
  --card: #ffffff;
  --card-hover: #f8fafc;
  --card-border: rgba(15,23,42,0.08);
  --glass: rgba(255,255,255,0.92);
  --accent: #0066ff;
  --accent-2: #4f8cff;
  --accent-glow: rgba(0,102,255,0.10);
  --accent-glow-strong: rgba(0,102,255,0.22);
  --red: #dc2626;
  --orange: #ea580c;
  --blue: #0066ff;
  --text: #0f172a;
  --text-2: #475569;
  --text-3: #64748b;
  --border: rgba(15,23,42,0.10);
  --border-light: rgba(15,23,42,0.05);
  --shadow: 0 4px 24px rgba(15,23,42,0.06);
  --shadow-sm: 0 2px 8px rgba(15,23,42,0.05);
  --radius: 12px;
  --radius-sm: 8px;
  --radius-xs: 6px;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
  --transition: 0.2s ease;
  --max-w: 1280px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent-2); }
img { max-width: 100%; height: auto; }
ul { list-style: none; }

.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.sr-only:focus, a.sr-only:focus-visible {
  position: fixed; top: 12px; left: 12px; width: auto; height: auto;
  padding: 10px 18px; margin: 0; clip: auto; overflow: visible; white-space: normal;
  background: var(--accent); color: #fff; font-weight: 700; border-radius: var(--radius-xs);
  z-index: 2000; text-decoration: none; box-shadow: var(--shadow);
}

:focus { outline: none; }
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: var(--radius-xs);
}

.header {
  position: sticky; top: 0; z-index: 1000;
  background: var(--glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  max-width: var(--max-w); margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between; height: 72px;
}
.logo { display: flex; align-items: center; gap: 10px; font-size: 22px; font-weight: 700; color: var(--text); }
.logo-img { display: block; height: 44px; width: auto; max-width: 220px; border-radius: var(--radius-xs); object-fit: contain; }

.nav { display: flex; align-items: center; gap: 4px; }
.nav a {
  padding: 8px 14px; border-radius: var(--radius-sm);
  color: var(--text-2); font-size: 14px; font-weight: 500;
  transition: all var(--transition);
}
.nav a:hover, .nav a.active { color: var(--text); background: var(--bg-3); }
.nav a.nav-cta {
  color: #fff;
  background: var(--accent);
  font-weight: 600;
  margin-left: 4px;
  padding: 9px 18px;
}
.nav a.nav-cta:hover { background: var(--accent-2); transform: translateY(-1px); box-shadow: 0 4px 12px var(--accent-glow-strong); color: #fff; }
.nav a.nav-cta.active { background: var(--accent-2); color: #fff; }

.header-right { display: flex; align-items: center; gap: 12px; }
.lang-switch {
  display: flex; background: var(--bg-3); border-radius: var(--radius-xs);
  overflow: hidden; border: 1px solid var(--border);
}
.lang-btn {
  padding: 6px 12px; font-size: 12px; font-weight: 600;
  color: var(--text-3); background: none; border: none; cursor: pointer;
  transition: all var(--transition);
}
.lang-btn.active { color: var(--accent); background: #fff; }

.hero {
  padding: 80px 0 60px; text-align: center;
  background: linear-gradient(180deg, var(--bg-2) 0%, var(--bg) 100%);
}
.hero h1 {
  font-size: 48px; font-weight: 800; letter-spacing: -1.5px; margin-bottom: 16px; color: var(--text);
}
.hero p {
  font-size: 18px; color: var(--text-2); max-width: 600px; margin: 0 auto 40px;
}

.exchange-selector {
  max-width: 700px; margin: 0 auto;
  background: var(--card); border: 1px solid var(--card-border); border-radius: var(--radius);
  padding: 24px; display: flex; gap: 12px; align-items: end;
  box-shadow: var(--shadow);
}
.selector-group { flex: 1; display: flex; flex-direction: column; gap: 6px; }
.selector-label {
  font-size: 11px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 1px; color: var(--text-3);
}
.selector-select {
  width: 100%; padding: 14px 40px 14px 16px;
  background-color: var(--bg-2); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text);
  font-family: var(--font); font-size: 15px; font-weight: 500;
  cursor: pointer; transition: border-color var(--transition), box-shadow var(--transition);
  appearance: none; -webkit-appearance: none; -moz-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%230066ff'%3E%3Cpath d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 14px center;
}
.selector-select:focus {
  outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow);
}
.selector-swap {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--bg-3); border: 1px solid var(--border); color: var(--accent);
  font-size: 18px; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all var(--transition); flex-shrink: 0;
}
.selector-swap:hover { background: var(--accent-glow); border-color: var(--accent); }

.btn-primary {
  padding: 12px 28px; background: var(--accent);
  border: none; border-radius: var(--radius-sm); color: #fff;
  font-family: var(--font); font-size: 14px; font-weight: 700; cursor: pointer;
  transition: all var(--transition); white-space: nowrap;
}
.btn-primary:hover { background: var(--accent-2); transform: translateY(-1px); box-shadow: 0 4px 16px var(--accent-glow-strong); }

.stats-strip {
  display: flex; justify-content: center; gap: 48px; padding: 32px 0;
  border-bottom: 1px solid var(--border-light);
}
.stat-item { text-align: center; }
.stat-value { font-size: 28px; font-weight: 800; color: var(--accent); }
.stat-label { font-size: 12px; color: var(--text-3); text-transform: uppercase; letter-spacing: 1px; margin-top: 4px; }

.section { padding: 60px 0; }
.section-title { font-size: 28px; font-weight: 700; margin-bottom: 32px; text-align: center; color: var(--text); }

.pairs-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
}
.pair-card {
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: var(--radius-sm); padding: 16px;
  display: flex; align-items: center; gap: 12px;
  cursor: pointer; transition: all var(--transition);
}
.pair-card:hover { border-color: var(--accent); background: var(--card-hover); transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.pair-arrow { color: var(--accent); font-size: 14px; flex-shrink: 0; }
.pair-codes { font-weight: 600; font-size: 14px; color: var(--text); }
.pair-count { font-size: 11px; color: var(--text-3); margin-left: auto; }

.rate-table-wrap {
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: var(--radius); overflow: hidden;
}
.rate-table { width: 100%; border-collapse: collapse; }
.rate-table th {
  padding: 14px 16px; text-align: left; font-size: 11px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 1px; color: var(--text-3);
  background: var(--bg-2); border-bottom: 1px solid var(--border);
}
.rate-table td {
  padding: 14px 16px; font-size: 14px; border-bottom: 1px solid var(--border-light);
  transition: background var(--transition); color: var(--text);
}
.rate-table tr:hover td { background: var(--bg-2); }
.rate-table tr:last-child td { border-bottom: none; }
.rate-table .exchanger-name { font-weight: 600; display: flex; align-items: center; gap: 8px; }

.trusted-badge {
  display: inline-flex; align-items: center; gap: 4px;
  background: var(--accent-glow); color: var(--accent);
  font-size: 10px; font-weight: 700; padding: 2px 8px; border-radius: 20px;
  text-transform: uppercase; letter-spacing: 0.5px;
}
.licensed-badge {
  display: inline-flex; align-items: center; gap: 4px;
  background: rgba(220,38,38,0.10); color: var(--red);
  font-size: 10px; font-weight: 700; padding: 2px 8px; border-radius: 20px;
  text-transform: uppercase; letter-spacing: 0.5px;
  border: 1px solid rgba(220,38,38,0.30); cursor: help;
}
.licensed-badge::before { content: '🛡'; font-size: 9px; filter: saturate(0); }

.rate-value { font-weight: 700; font-size: 15px; font-variant-numeric: tabular-nums; color: var(--text); }
.rate-best { color: var(--accent); }
.btn-go {
  padding: 6px 16px; background: transparent; border: 1px solid var(--accent);
  border-radius: var(--radius-xs); color: var(--accent);
  font-size: 12px; font-weight: 600; cursor: pointer; transition: all var(--transition);
}
.btn-go:hover { background: var(--accent); color: #fff; }

.how-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.how-card {
  text-align: center; padding: 32px 24px;
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: var(--radius); transition: all var(--transition);
}
.how-card:hover { border-color: var(--accent); transform: translateY(-4px); box-shadow: var(--shadow); }
.how-icon {
  width: 56px; height: 56px; margin: 0 auto 16px;
  background: var(--accent-glow); border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center; font-size: 24px;
}
.how-card h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; color: var(--text); }
.how-card p { font-size: 13px; color: var(--text-2); line-height: 1.5; }

.footer {
  border-top: 1px solid var(--border); padding: 40px 0; margin-top: 60px;
  background: var(--bg-2);
}
.footer-inner {
  max-width: var(--max-w); margin: 0 auto; padding: 0 24px;
  display: grid; grid-template-columns: 2fr 1fr 1fr; align-items: start; gap: 40px;
}
.footer-col { min-width: 0; }
.footer-title { font-size: 14px; font-weight: 700; margin-bottom: 12px; color: var(--text); }
.footer-text { font-size: 13px; color: var(--text-3); line-height: 1.6; }
.footer-links a {
  display: block; font-size: 13px; color: var(--text-2);
  padding: 4px 0;
}
.footer-links a:hover { color: var(--accent); }

.loading { display: flex; align-items: center; justify-content: center; padding: 60px 0; color: var(--text-3); }
.spinner {
  width: 24px; height: 24px;
  border: 3px solid var(--border); border-top-color: var(--accent);
  border-radius: 50%; animation: spin 0.6s linear infinite; margin-right: 12px;
}
@keyframes spin { to { transform: rotate(360deg); } }
.empty-state { text-align: center; padding: 60px 20px; color: var(--text-3); }

@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
.fade-in { animation: fadeIn 0.3s ease forwards; }

.nav-toggle {
  display: none;
  width: 40px; height: 40px;
  padding: 0; margin: 0;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-xs);
  cursor: pointer;
  align-items: center; justify-content: center;
  flex-direction: column; gap: 4px;
  flex-shrink: 0;
  transition: border-color var(--transition);
}
.nav-toggle:hover { border-color: var(--accent); }
.nav-toggle-bar {
  display: block;
  width: 18px; height: 2px;
  background: var(--text-2);
  border-radius: 1px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

@media (max-width: 768px) {
  .hero h1 { font-size: 32px; }
  .hero { padding: 48px 0 40px; }
  .exchange-selector { flex-direction: column; }
  .exchange-selector .btn-primary { width: 100%; text-align: center; }
  .selector-group { width: 100%; }
  .selector-swap { align-self: center; }
  .stats-strip { gap: 24px; flex-wrap: wrap; }
  .how-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 24px; }
  .header-inner { padding: 0 16px; gap: 8px; }
  .container { padding: 0 16px; }
  .pairs-grid { grid-template-columns: repeat(2, 1fr); }
  .rate-table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .rate-table { min-width: 540px; }

  .nav-toggle { display: flex; order: 3; }
  .header-right { order: 2; }
  .nav {
    position: absolute;
    top: 100%; left: 0; right: 0;
    flex-direction: column;
    gap: 0;
    padding: 8px;
    background: #fff;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease, padding 0.25s ease;
    padding-top: 0; padding-bottom: 0;
    z-index: 999;
  }
  .nav.open {
    max-height: 480px;
    padding-top: 8px; padding-bottom: 12px;
  }
  .nav a { padding: 12px 14px; font-size: 15px; border-radius: var(--radius-sm); }
  .nav a.nav-cta { margin: 8px 0 0; text-align: center; padding: 12px; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 26px; }
  .hero p { font-size: 15px; }
  .stat-value { font-size: 22px; }
  .pairs-grid { grid-template-columns: 1fr; }
  .rate-table { min-width: 480px; }
  .logo-img { height: 36px; max-width: 160px; }
}

#app { min-height: calc(100vh - 72px - 140px); }

.exchanger-profile {
  display: flex; align-items: center; gap: 20px; padding: 24px;
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: var(--radius); margin-bottom: 24px;
}
.exchanger-profile h2 { font-size: 24px; font-weight: 700; color: var(--text); }
.exchanger-profile .trusted-badge { font-size: 12px; padding: 4px 12px; }

.pair-header { display: flex; align-items: center; gap: 16px; margin-bottom: 24px; }
.pair-header h1 { font-size: 28px; font-weight: 700; color: var(--text); }
.back-link {
  display: flex; align-items: center; gap: 6px;
  font-size: 13px; color: var(--text-2); margin-top: 8px; margin-bottom: 16px;
}
.back-link:hover { color: var(--accent); }

.article-content {
  font-size: 17px; line-height: 1.75; color: var(--text);
}
.article-content h1, .article-content h2, .article-content h3, .article-content h4 {
  font-weight: 700; line-height: 1.3; margin: 1.6em 0 0.5em; color: var(--text);
}
.article-content h1 { font-size: 28px; }
.article-content h2 { font-size: 24px; }
.article-content h3 { font-size: 20px; }
.article-content p { margin: 0 0 1em; }
.article-content a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.article-content ul, .article-content ol { margin: 0 0 1em 1.5em; padding-left: 0; }
.article-content ul li, .article-content ol li { list-style: revert; margin-bottom: 0.4em; }
.article-content ul { list-style: disc; }
.article-content blockquote {
  border-left: 3px solid var(--accent); padding: 8px 16px; margin: 1em 0;
  color: var(--text-2); background: var(--bg-2); border-radius: 0 var(--radius-xs) var(--radius-xs) 0;
}
.article-content code {
  background: var(--bg-3); padding: 2px 6px; border-radius: 4px;
  font-size: 0.9em; font-family: ui-monospace, monospace; color: var(--accent);
}
.article-content pre {
  background: var(--bg-3); padding: 16px; border-radius: var(--radius-sm);
  overflow-x: auto; margin: 1em 0; border: 1px solid var(--border-light);
}
.article-content pre code { background: none; padding: 0; color: var(--text); font-size: 13px; line-height: 1.5; }
.article-content hr { border: none; border-top: 1px solid var(--border); margin: 2em 0; }

.article-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 20px; }
.article-card {
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: var(--radius); overflow: hidden; transition: all var(--transition);
}
.article-card:hover { border-color: var(--accent); transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.article-card-link { display: block; padding: 24px; color: var(--text); text-decoration: none; }
.article-card-title { font-size: 18px; font-weight: 700; line-height: 1.35; margin-bottom: 10px; color: var(--text); }
.article-card-excerpt {
  font-size: 13px; color: var(--text-2); line-height: 1.55; margin-bottom: 16px;
  display: -webkit-box; -webkit-line-clamp: 4; -webkit-box-orient: vertical; overflow: hidden;
}
.article-card-meta { font-size: 12px; color: var(--text-3); display: flex; align-items: center; gap: 12px; }

.faq-list { max-width: 820px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: var(--card); border: 1px solid var(--card-border); border-radius: var(--radius); transition: border-color var(--transition); }
.faq-item:hover, .faq-item[open] { border-color: var(--accent); }
.faq-item summary {
  padding: 18px 24px; font-size: 16px; font-weight: 600; color: var(--text);
  cursor: pointer; list-style: none;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '+'; font-size: 22px; color: var(--accent); }
.faq-item[open] summary::after { content: '−'; }
.faq-answer { padding: 0 24px 20px; font-size: 14px; line-height: 1.7; color: var(--text-2); }

.page-payment .header,
.page-payment .footer,
.page-payment .sr-only[href="#main"] { display: none !important; }
.page-payment #app { min-height: 100vh; }

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-3); }

.add-exchanger-page { max-width: 680px; margin: 0 auto; }

.exchanger-form {
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: var(--radius); padding: 32px;
  display: flex; flex-direction: column; gap: 20px;
  box-shadow: var(--shadow); position: relative;
}

.exchanger-form .field { display: flex; flex-direction: column; gap: 6px; }
.exchanger-form .field-label { font-size: 13px; font-weight: 600; color: var(--text); }
.exchanger-form .field-label .req { color: var(--red); margin-left: 2px; }
.exchanger-form .field-hint { font-size: 12px; color: var(--text-3); margin-top: 2px; line-height: 1.5; }

.exchanger-form input[type="text"],
.exchanger-form input[type="url"],
.exchanger-form input[type="email"] {
  width: 100%; padding: 12px 14px;
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text);
  font-family: var(--font); font-size: 15px; font-weight: 500;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.exchanger-form input[type="text"]::placeholder,
.exchanger-form input[type="url"]::placeholder,
.exchanger-form input[type="email"]::placeholder { color: var(--text-3); }
.exchanger-form input[type="text"]:focus,
.exchanger-form input[type="url"]:focus,
.exchanger-form input[type="email"]:focus {
  outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow);
}

.exchanger-form .field-check { flex-direction: row; }
.exchanger-form .form-check {
  display: flex; align-items: center; gap: 10px;
  font-size: 14px; color: var(--text); cursor: pointer; user-select: none;
}
.exchanger-form .form-check input[type="checkbox"] {
  width: 18px; height: 18px; accent-color: var(--accent); cursor: pointer;
}

.exchanger-form .honeypot {
  position: absolute; left: -9999px;
  width: 1px; height: 1px; overflow: hidden; pointer-events: none;
}

.exchanger-form .form-error {
  padding: 10px 14px;
  background: rgba(220,38,38,0.08); border: 1px solid rgba(220,38,38,0.30);
  border-radius: var(--radius-xs); color: var(--red); font-size: 13px;
}
.exchanger-form .form-success {
  padding: 12px 16px;
  background: var(--accent-glow); border: 1px solid var(--accent-glow-strong);
  border-radius: var(--radius-xs); color: var(--accent); font-size: 14px; line-height: 1.5;
}

.exchanger-form .form-actions {
  display: flex; gap: 12px; margin-top: 8px; justify-content: flex-end;
}
.exchanger-form .btn-secondary {
  padding: 12px 24px; background: transparent; border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text-2);
  font-family: var(--font); font-size: 14px; font-weight: 600;
  text-decoration: none; cursor: pointer; transition: all var(--transition);
  display: inline-flex; align-items: center; justify-content: center;
}
.exchanger-form .btn-secondary:hover { border-color: var(--text-3); color: var(--text); background: var(--bg-3); }
.exchanger-form .btn-primary { padding: 12px 24px; font-size: 14px; }
.exchanger-form .btn-primary:disabled { opacity: 0.6; cursor: progress; }

@media (max-width: 520px) {
  .exchanger-form { padding: 22px; }
  .exchanger-form .form-actions { flex-direction: column-reverse; }
  .exchanger-form .form-actions > * { width: 100%; }
}

.exchanger-form .recaptcha-block {
  display: flex; flex-direction: column; gap: 10px;
  animation: captchaIn 0.25s ease;
}
@keyframes captchaIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}
.exchanger-form .recaptcha-hint {
  font-size: 13px; color: var(--text-2); font-weight: 600;
}
.exchanger-form #exRecaptchaWidget {
  display: flex; justify-content: flex-start;
}