/*
 * Badminton Radar site. Plain CSS, system fonts only, no external requests.
 * Colors are the court green palette (tasks.md T175/T176); every text/background pair
 * used below keeps a contrast ratio of at least 4.5:1, checked by
 * src/__tests__/unit/site/site.test.ts.
 */
:root {
  color-scheme: light dark;
  --background: #ffffff;
  --surface: #f3f7f4;
  --text: #14241b;
  --muted-text: #4a5c51;
  --accent: #1d7a4b;
  --accent-text: #16603c;
  --on-accent: #ffffff;
  --border: #c9d8ce;
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: #0f1d16;
    --surface: #16291f;
    --text: #edf6f0;
    --muted-text: #b1c7b9;
    --accent: #7fd3a4;
    --accent-text: #d2f4e0;
    --on-accent: #0f1d16;
    --border: #2c4a39;
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family:
    system-ui,
    -apple-system,
    'Segoe UI',
    'PingFang TC',
    'Microsoft JhengHei',
    'Noto Sans TC',
    sans-serif;
  font-size: 1rem;
  line-height: 1.7;
  overflow-wrap: anywhere;
}

a {
  color: var(--accent-text);
  text-underline-offset: 0.2em;
}

a:focus-visible,
.table-scroll:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.9em;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0 0.3em;
}

.wrap {
  max-width: 52rem;
  margin: 0 auto;
  padding: 0 16px;
}

/* Header */
.site-header {
  border-bottom: 1px solid var(--border);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding-top: 12px;
  padding-bottom: 12px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 700;
  text-decoration: none;
}

.brand img {
  width: 32px;
  height: 32px;
}

.site-nav {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* Hero */
.hero {
  padding: 48px 0 32px;
}

.hero .wrap {
  display: grid;
  gap: 32px;
  align-items: center;
}

@media (min-width: 720px) {
  .hero .wrap {
    grid-template-columns: 1.2fr 1fr;
  }
}

.hero h1 {
  font-size: clamp(1.8rem, 6vw, 2.6rem);
  line-height: 1.25;
  margin: 0 0 12px;
}

.lead {
  font-size: 1.125rem;
  color: var(--muted-text);
  margin: 0 0 24px;
}

.store-placeholder {
  display: inline-block;
  padding: 10px 18px;
  border-radius: 8px;
  background: var(--accent);
  color: var(--on-accent);
  font-weight: 700;
}

.note {
  color: var(--muted-text);
  font-size: 0.9375rem;
  margin: 8px 0 0;
}

/* Pure CSS sketch of the side panel results list. */
.panel-sketch {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
}

.panel-sketch .sketch-title {
  font-weight: 700;
  margin: 0 0 8px;
}

.panel-sketch .sketch-group {
  color: var(--accent-text);
  font-weight: 700;
  font-size: 0.9375rem;
  margin: 12px 0 6px;
}

.panel-sketch ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.panel-sketch li {
  background: var(--background);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: 8px;
  padding: 8px 12px;
}

.panel-sketch .sketch-time {
  font-weight: 700;
}

.panel-sketch .sketch-meta {
  color: var(--muted-text);
  font-size: 0.9375rem;
}

/* Sections */
section {
  padding: 24px 0;
}

h2 {
  font-size: 1.5rem;
  line-height: 1.3;
  margin: 0 0 16px;
}

h3 {
  font-size: 1.125rem;
  margin: 0 0 4px;
}

.features {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

@media (min-width: 600px) {
  .features {
    grid-template-columns: 1fr 1fr;
  }
}

.features li {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 16px;
}

.features p {
  margin: 0;
  color: var(--muted-text);
}

.steps {
  padding-left: 1.4em;
  margin: 0;
}

.steps li + li {
  margin-top: 6px;
}

.privacy-summary {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 20px;
}

.privacy-summary ul {
  margin: 0 0 12px;
  padding-left: 1.2em;
}

/* Policy page */
.policy {
  padding: 32px 0 16px;
}

.policy h1 {
  font-size: clamp(1.6rem, 5vw, 2.2rem);
  line-height: 1.3;
  margin: 0 0 16px;
}

.policy h2 {
  margin-top: 32px;
}

.policy ul {
  padding-left: 1.2em;
}

.table-scroll {
  overflow-x: auto;
  margin: 0 0 16px;
}

table {
  border-collapse: collapse;
  width: 100%;
  min-width: 32rem;
}

th,
td {
  border: 1px solid var(--border);
  padding: 8px 10px;
  text-align: left;
  vertical-align: top;
  /* break-word, unlike anywhere, keeps whole words in the column width calculation. */
  overflow-wrap: break-word;
}

th {
  background: var(--surface);
}

hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 40px 0;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 32px;
  padding: 20px 0 32px;
  color: var(--muted-text);
  font-size: 0.9375rem;
}

.site-footer p {
  margin: 4px 0;
}