/* Postcode Finder MVP - minimal, no framework, no build step. */
:root {
  --green: #0a7d3a;
  --bg: #f7f9f8;
  --text: #16241c;
  --border: #d9e2dc;
}
* { box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  margin: 0;
  padding: 24px 16px 60px;
  display: flex;
  justify-content: center;
}
.card {
  max-width: 480px;
  width: 100%;
  background: white;
  border-radius: 16px;
  padding: 28px 24px;
  box-shadow: 0 2px 16px rgba(0,0,0,0.06);
}
h1 { font-size: 1.4rem; margin: 0 0 4px; }
.subtitle { color: #5b6b62; font-size: 0.92rem; margin: 0 0 24px; }
.step { margin-bottom: 16px; }
label { display: block; font-size: 0.85rem; font-weight: 600; margin-bottom: 6px; }
select, button, input[type="text"] {
  width: 100%;
  padding: 12px 14px;
  font-size: 1rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: white;
}
input[type="text"]:focus { outline: 2px solid var(--green); border-color: var(--green); }
select:disabled { background: #f0f2f1; color: #9aa6a0; }
.locked-hint { font-size: 0.85rem; color: #9aa6a0; padding: 10px 0; }
.chip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: #eafaf1;
  border: 1px solid #b7e9c9;
  border-radius: 10px;
  font-weight: 700;
  letter-spacing: 0.5px;
}
.changeBtn {
  width: auto;
  padding: 4px 10px;
  font-size: 0.78rem;
  font-weight: 500;
  border-radius: 6px;
  border: 1px solid #b7e9c9;
  background: white;
  color: var(--green);
  cursor: pointer;
}
.suggestions { margin-top: 6px; }
.suggestion-item {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-top: none;
  cursor: pointer;
  font-weight: 600;
  letter-spacing: 0.5px;
}
.suggestion-item:first-child { border-top: 1px solid var(--border); border-radius: 8px 8px 0 0; }
.suggestion-item:last-child { border-radius: 0 0 8px 8px; }
.suggestion-item:hover { background: #eafaf1; }
.no-match { font-size: 0.82rem; color: #9aa6a0; padding: 6px 2px; }
.checkBtn {
  margin-top: 8px;
  background: var(--green);
  color: white;
  border: none;
  cursor: pointer;
  font-weight: 600;
}
.demo-row {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
}
.demoBtn {
  flex: 1;
  background: white;
  border: 1px solid var(--green);
  color: var(--green);
  font-weight: 600;
  font-size: 0.85rem;
  padding: 10px;
  cursor: pointer;
}
.demoBtn:hover { background: #eafaf1; }
button#resetBtn {
  background: transparent;
  border: 1px solid var(--border);
  color: #5b6b62;
  margin-top: 8px;
  cursor: pointer;
}
.result {
  margin-top: 20px;
  padding: 18px;
  border-radius: 12px;
  display: none;
}
.result.show { display: block; }
.result.valid { background: #eafaf1; border: 1px solid #b7e9c9; }
.result.invalid { background: #fdeeee; border: 1px solid #f3c6c6; }
.result.empty { background: #fff8e6; border: 1px solid #f0dca0; }
.code { font-size: 1.3rem; font-weight: 700; letter-spacing: 1px; margin: 4px 0 8px; }
.copyBtn {
  margin-top: 10px;
  background: var(--green);
  color: white;
  border: none;
  cursor: pointer;
  font-weight: 600;
}
.note { font-size: 0.8rem; color: #5b6b62; margin-top: 18px; line-height: 1.4; }
.loading { font-size: 0.85rem; color: #5b6b62; }