:root {
  color-scheme: light dark;
  --bg: #0b1220;
  --card: rgba(255, 255, 255, 0.06);
  --card-border: rgba(255, 255, 255, 0.12);
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.72);
  --muted2: rgba(255, 255, 255, 0.55);
  --accent: #6ea8fe;
  --accent2: #22c55e;
  --danger: #fb7185;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
  --radius: 16px;
  --ring: 0 0 0 3px rgba(110, 168, 254, 0.28);
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial,
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC",
    sans-serif;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f6f7fb;
    --card: rgba(255, 255, 255, 0.8);
    --card-border: rgba(15, 23, 42, 0.12);
    --text: rgba(15, 23, 42, 0.92);
    --muted: rgba(15, 23, 42, 0.72);
    --muted2: rgba(15, 23, 42, 0.56);
    --shadow: 0 18px 50px rgba(15, 23, 42, 0.12);
  }
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: var(--font);
  background: radial-gradient(1200px 800px at 20% 10%, rgba(110, 168, 254, 0.22), transparent 50%),
    radial-gradient(900px 700px at 80% 30%, rgba(34, 197, 94, 0.18), transparent 55%),
    var(--bg);
  color: var(--text);
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
    "Liberation Mono", "Courier New", monospace;
  font-size: 0.95em;
}

.container {
  max-width: 920px;
  margin: 0 auto;
  padding: 28px 18px 36px;
}

.header {
  margin-bottom: 16px;
}

.title {
  margin: 0;
  font-size: 28px;
  letter-spacing: 0.2px;
}

.subtitle {
  margin: 8px 0 0;
  color: var(--muted);
}

.card {
  border: 1px solid var(--card-border);
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
  margin: 14px 0;
  backdrop-filter: blur(10px);
}

.form {
  display: grid;
  gap: 10px;
}

.label {
  font-weight: 600;
  color: var(--muted);
  font-size: 14px;
}

.row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.row.actions {
  justify-content: flex-start;
}

.input {
  flex: 1 1 360px;
  min-width: 240px;
  padding: 12px 12px;
  border-radius: 12px;
  border: 1px solid var(--card-border);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  outline: none;
}

.input:focus {
  box-shadow: var(--ring);
  border-color: rgba(110, 168, 254, 0.5);
}

.btn {
  padding: 11px 14px;
  border-radius: 12px;
  border: 1px solid var(--card-border);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  cursor: pointer;
  user-select: none;
}

.btn:hover {
  border-color: rgba(110, 168, 254, 0.55);
}

.btn:focus-visible {
  outline: none;
  box-shadow: var(--ring);
}

.btn.primary {
  border-color: rgba(110, 168, 254, 0.55);
  background: linear-gradient(135deg, rgba(110, 168, 254, 0.35), rgba(110, 168, 254, 0.16));
}

.btn.ghost {
  background: transparent;
}

.hint {
  margin: 2px 0 0;
  color: var(--muted2);
  font-size: 13px;
  line-height: 1.4;
}

.status {
  min-height: 22px;
  color: var(--muted);
  font-size: 14px;
}

.status.error {
  color: var(--danger);
}

.resultHeader {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.place {
  font-size: 18px;
  font-weight: 700;
}

.desc {
  margin-top: 6px;
  color: var(--muted);
}

.temp {
  font-size: 40px;
  font-weight: 800;
  letter-spacing: -0.6px;
  color: var(--accent2);
}

.grid {
  margin: 14px 0 0;
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

@media (min-width: 720px) {
  .grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.kv {
  border: 1px solid var(--card-border);
  border-radius: 14px;
  padding: 10px 12px;
  background: rgba(255, 255, 255, 0.06);
}

dt {
  color: var(--muted2);
  font-size: 12px;
}

dd {
  margin: 6px 0 0;
  font-weight: 700;
}

.raw {
  margin-top: 14px;
  border-top: 1px solid var(--card-border);
  padding-top: 12px;
}

pre {
  margin: 10px 0 0;
  overflow: auto;
  padding: 10px;
  border-radius: 12px;
  border: 1px solid var(--card-border);
  background: rgba(0, 0, 0, 0.18);
}

.footer {
  margin-top: 12px;
  color: var(--muted2);
  font-size: 12px;
  display: flex;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}