:root {
  color-scheme: light dark;
  --background: #f8fafd;
  --surface: #ffffff;
  --text: #202124;
  --muted: #5f6368;
  --border: #d7dce5;
  --accent: #0b57d0;
  --accent-text: #ffffff;
  --shadow: 0 1px 2px rgb(60 64 67 / 0.12), 0 2px 6px 2px rgb(60 64 67 / 0.08);
  --focus: rgb(11 87 208 / 0.22);
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: #1f1f1f;
    --surface: #2b2c2f;
    --text: #e8eaed;
    --muted: #bdc1c6;
    --border: #45474d;
    --accent: #a8c7fa;
    --accent-text: #202124;
    --shadow: 0 1px 2px rgb(0 0 0 / 0.32), 0 3px 8px 2px rgb(0 0 0 / 0.22);
    --focus: rgb(168 199 250 / 0.24);
  }
}

* { box-sizing: border-box; }

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  display: grid;
  grid-template-rows: 1fr auto;
  background: var(--background);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans TC", sans-serif;
  -webkit-font-smoothing: antialiased;
}

main { padding: 0 24px 88px; }

.search-panel { width: min(100%, 760px); margin: clamp(80px, 18vh, 180px) auto 0; text-align: center; }

h1 { margin: 0; font-size: clamp(34px, 6vw, 48px); font-weight: 500; letter-spacing: -0.045em; }

.description { margin: 14px 0 36px; color: var(--muted); font-size: 16px; }

form { display: block; }
.search-area { position: relative; z-index: 1; }

.search-box {
  min-width: 0;
  flex: 1;
  min-height: 64px;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 8px 10px 8px 21px;
  border: 1px solid transparent;
  border-radius: 32px;
  background: var(--surface);
  box-shadow: var(--shadow);
  text-align: left;
  transition: border-color 150ms ease, box-shadow 150ms ease;
}

.search-box:focus-within { border-color: var(--accent); box-shadow: 0 0 0 4px var(--focus); }

svg { width: 21px; height: 21px; fill: none; stroke: var(--muted); stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.8; flex: none; }

input {
  width: 100%; min-width: 0; border: 0; outline: 0; background: transparent; color: var(--text); font: inherit; font-size: 18px;
}

input::placeholder { color: var(--muted); opacity: 0.82; }
input::-webkit-search-cancel-button { display: none; }

button { font: inherit; cursor: pointer; }

.clear-button { display: grid; place-items: center; padding: 3px; border: 0; background: transparent; }
.clear-button svg { width: 18px; height: 18px; }

.suggestions, .result {
  max-width: 760px; border: 1px solid var(--border); border-radius: 16px; background: var(--surface); box-shadow: var(--shadow); text-align: left;
}

.suggestions { position: absolute; z-index: 2; top: calc(100% + 8px); right: 0; left: 0; overflow: hidden; padding: 8px; }
.suggestions-title { margin: 7px 12px 8px; color: var(--muted); font-size: 13px; font-weight: 500; }
.suggestion-row { display: flex; align-items: center; gap: 4px; }
.suggestion { width: 100%; display: flex; align-items: center; gap: 12px; padding: 11px 12px; border: 0; border-radius: 10px; background: transparent; color: var(--text); font-size: 16px; text-align: left; }
.suggestion svg { width: 18px; height: 18px; }
.remove-suggestion { width: 38px; height: 38px; display: grid; flex: none; place-items: center; padding: 0; border: 0; border-radius: 50%; background: transparent; }
.remove-suggestion svg { width: 18px; height: 18px; }

.result { margin: 18px auto 0; padding: 18px 22px;
}

.result-match { margin: 0; font-size: 17px; line-height: 1.6; overflow-wrap: anywhere; }
.zipcode { color: var(--accent); font-size: 24px; font-weight: 650; letter-spacing: 0.05em; }
.not-found { margin: 0; font-size: 15px; line-height: 1.6; }

footer { display: flex; flex-wrap: wrap; justify-content: center; gap: 7px; padding: 24px; color: var(--muted); font-size: 12px; text-align: center; }
footer a { color: inherit; text-underline-offset: 3px; }

@media (max-width: 560px) {
  main { padding: 0 18px 56px; }
  .search-panel { margin-top: 10vh; }
  .description { margin-bottom: 28px; }
  .search-box { min-height: 60px; padding-left: 17px; }
  input { font-size: 16px; }
}