:root{
  --bg: #f6f7fb;
  --card: #ffffff;
  --text: #121826;
  --muted: #5b6475;
  --border: #e6e9f2;
  --shadow: 0 10px 30px rgba(16, 24, 40, 0.08);
  --shadow2: 0 2px 10px rgba(16, 24, 40, 0.06);
  --accent: #2563eb;
  --accent2:#1d4ed8;
  --ok: #16a34a;
  --bad:#dc2626;
  --codebg:#f1f5ff;
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Noto Sans", "Liberation Sans", sans-serif;
  background: var(--bg);
  color: var(--text);
}

.card{
  max-width: 980px;
  margin: 28px auto;
  background: var(--card);
  padding: 22px;
  border-radius: 18px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

h1{
  margin: 0 0 14px;
  font-size: 30px;
  letter-spacing: -0.02em;
}

.grid{
  display:grid;
  grid-template-columns: 1.2fr 0.8fr 1.2fr;
  gap: 14px;
  margin-top: 10px;
}

label{
  display:flex;
  flex-direction:column;
  gap: 8px;
  font-size: 13px;
  color: var(--muted);
}

input{
  padding: 12px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
  outline: none;
  box-shadow: var(--shadow2);
}

input:focus{
  border-color: rgba(37,99,235,0.45);
  box-shadow: 0 0 0 4px rgba(37,99,235,0.12);
}

.buttons{
  display:flex;
  gap: 10px;
  margin-top: 14px;
  flex-wrap: wrap;
}

button{
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  cursor: pointer;
  font-weight: 700;
  background: #fff;
  color: var(--text);
  box-shadow: var(--shadow2);
  transition: transform .05s ease, box-shadow .15s ease, border-color .15s ease;
}

button:hover{
  border-color: rgba(37,99,235,0.35);
  box-shadow: 0 12px 26px rgba(16,24,40,0.10);
}

button:active{
  transform: translateY(1px);
}

button#loadWeather{
  background: #fff;
}

button#send{
  background: var(--accent);
  color: #fff;
  border-color: rgba(37,99,235,0.35);
}

button#send:hover{
  background: var(--accent2);
}

pre{
  margin-top: 14px;
  background: #fbfcff;
  border: 1px solid var(--border);
  padding: 14px;
  border-radius: 14px;
  overflow:auto;
  min-height: 160px;
  color: #0f172a;
  box-shadow: var(--shadow2);
}

.hint{
  margin-top: 12px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

code{
  background: var(--codebg);
  border: 1px solid #dbe7ff;
  padding: 2px 8px;
  border-radius: 999px;
  color: #0b2a6a;
  font-size: 12.5px;
}

@media (max-width: 860px){
  .grid{ grid-template-columns: 1fr; }
  h1{ font-size: 26px; }
}