:root {
  --bg: #0b0e13;
  --fg: #e8edf2;
  --muted: #9aa7b2;
  --accent: #6ee7ff;
  --card: #121720;
  --good: #7cf6a2;
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0; font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Inter, Arial;
  background: radial-gradient(1200px 800px at 20% -10%, #111826, transparent), var(--bg);
  color: var(--fg); line-height: 1.5;
}
.container { max-width: 940px; margin: 0 auto; padding: 24px; }
header { display:flex; align-items:center; justify-content:space-between; gap:16px; }
.brand { display:flex; align-items:center; gap:12px; }
.brand .logo { width:32px; height:32px; border-radius:10px; object-fit: contain; }
.brand h1 { font-size: 20px; margin:0; letter-spacing: .2px; }
.lang { display:flex; gap:8px; }

.lang-select {
  background: #0f141c;
  border: 1px solid #2a3442;
  color: var(--fg);
  padding: 6px 10px;
  border-radius: 10px;
  font-size: 14px;
  cursor: pointer;
  transition: border-color 0.2s ease;
  min-width: 80px;
}

.lang-select:hover {
  border-color: #485a73;
}

.lang-select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(110, 231, 255, 0.2);
}

.card { background: var(--card); border: 1px solid #2a3442; border-radius: 16px; padding: 18px; box-shadow: 0 10px 30px rgba(0,0,0,.25); }
.grid { display:grid; grid-template-columns: 1fr; gap:16px; }
@media (min-width: 860px){ .grid { grid-template-columns: 1.2fr .8fr; } }
.title { font-size: 28px; margin: 10px 0 6px; }
.sub { color: var(--muted); font-size: 14px; }
.row { display:flex; align-items:center; gap:12px; flex-wrap:wrap; }
.badge { font-size: 12px; padding: 4px 8px; border: 1px solid #2a3442; border-radius: 10px; color: var(--muted); }
.rate { font-size: 36px; font-weight: 700; letter-spacing: .3px; }
select, input { background:#0f141c; border:1px solid #2a3442; color:var(--fg); padding:10px 12px; border-radius:12px; }
input[type="number"] { width: 100%; }
.btn { background: linear-gradient(135deg, #6EE7FF, #A78BFA); color:#081018; border:0; padding:10px 14px; border-radius:12px; font-weight:600; cursor:pointer; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.footer {
  background: var(--card);
  border: 1px solid #2a3442;
  border-radius: 16px;
  margin-top: 16px;
  padding: 18px;
  box-shadow: 0 10px 30px rgba(0,0,0,.25);
}

.footer-content {
  max-width: none;
  margin: 0;
  padding: 0;
}

.footer-hero {
  text-align: center;
  margin-bottom: 24px;
}

.footer-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 12px;
}

.footer-icon {
  font-size: 24px;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

.footer-logo h3 {
  font-size: 20px;
  margin: 0;
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.2px;
}

.footer-hero p {
  font-size: 14px;
  margin: 0;
  color: var(--muted);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: 24px;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.footer-card {
  background: rgba(110, 231, 255, 0.05);
  border: 1px solid #2a3442;
  border-radius: 12px;
  padding: 16px;
  text-align: center;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.footer-card:hover {
  transform: translateY(-2px);
  border-color: #485a73;
}

.card-icon {
  font-size: 20px;
  margin-bottom: 8px;
}

.footer-card h4 {
  font-size: 14px;
  margin: 0 0 6px 0;
  color: var(--fg);
  font-weight: 600;
}

.footer-card p {
  font-size: 13px;
  margin: 0 0 4px 0;
  color: var(--muted);
  line-height: 1.4;
}

.footer-card small {
  font-size: 12px;
  color: var(--muted);
  opacity: 0.8;
}

.footer-card a {
  color: var(--accent);
  text-decoration: none;
  transition: opacity 0.2s ease;
}

.footer-card a:hover {
  opacity: 0.8;
}

.footer-bottom {
  border-top: 1px solid #2a3442;
  padding-top: 16px;
  text-align: center;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.footer-links span {
  font-size: 12px;
  color: var(--muted);
}

.footer-copyright {
  font-size: 12px;
  color: var(--muted);
  opacity: 0.8;
}

@media (max-width: 767px) {
  .footer-links {
    flex-direction: column;
    gap: 6px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
}
canvas { width: 100%; height: 220px; display:block; }

/* Screen reader only content */
.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;
}