:root{
  --bg: #f7fafc;
  --card: #ffffff;
  --muted: #6b7280;
  --accent: #2563eb;
  --danger: #dc2626;
  --radius: 10px;
  --max-width: 880px;
}

*{box-sizing: border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  background: linear-gradient(180deg, var(--bg), #eef2ff);
  color:#111827;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  padding:32px;
}

.site{
  max-width:var(--max-width);
  margin:0 auto;
}

header{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
header h1{font-size:1.25rem;margin:0}

.nav-links{display:flex;gap:12px}
.nav-links a{display:inline-block;padding:10px 14px;background:var(--card);border-radius:8px;text-decoration:none;color:var(--accent);box-shadow:0 1px 2px rgba(2,6,23,0.06);border:1px solid rgba(15,23,42,0.04)}

.card{
  background:var(--card);
  border-radius:var(--radius);
  padding:20px;
  box-shadow:0 6px 18px rgba(15,23,42,0.06);
  border:1px solid rgba(15,23,42,0.04);
}

h2{margin-top:0;color:#0f172a}

form{margin-top:12px}
.form-row{display:flex;flex-direction:column;margin-bottom:12px}
.form-row label{font-size:0.9rem;color:var(--muted);margin-bottom:6px}
input[type=text], input[list], select{
  padding:10px 12px;border-radius:8px;border:1px solid #e6e9ef;font-size:0.95rem;background:transparent;outline:none
}
input[type=text]:focus, select:focus, input[list]:focus{box-shadow:0 0 0 3px rgba(37,99,235,0.12);border-color:var(--accent)}

button{background:var(--accent);color:white;padding:10px 14px;border-radius:8px;border:0;font-weight:600;cursor:pointer}
button[disabled]{opacity:0.6;cursor:not-allowed}

.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;align-items:center}
.result{margin-top:16px;padding:12px;border-radius:8px;background:#f8fafc;border:1px solid rgba(2,6,23,0.03)}

@media (max-width:720px){
  .form-grid{grid-template-columns:1fr}
  .nav-links{flex-direction:column;gap:8px}
  body{padding:18px}
}

/* small helpers */
.muted{color:var(--muted)}
.mb-12{margin-bottom:12px}

/* Suggestions dropdown for name input */
.suggestions{position:relative}
.suggestions-list{
  position:absolute;
  left:0;right:0;top:calc(100% + 6px);
  background:var(--card);
  border:1px solid #e6e9ef;
  border-radius:8px;
  max-height:160px;
  overflow:auto;
  z-index:50;
  padding:0;margin:0;list-style:none;
  box-shadow:0 6px 18px rgba(15,23,42,0.06);
}
.suggestions-list li{padding:8px 12px;cursor:pointer}
.suggestions-list li:hover, .suggestions-list li.active{background:rgba(37,99,235,0.08)}
.suggestions-list[hidden]{display:none}

/* highlight matching substring */
.suggest-match{font-weight:600;color:var(--accent)}