/* XD三國戰績同步系統 — 官方網站樣式
   純靜態、無第三方資源、無追蹤器。 */

:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --surface-alt: #f0f3f8;
  --border: #dfe3ea;
  --border-strong: #c6cdd9;
  --text: #171a20;
  --text-muted: #5a6272;
  --accent: #2c4d8e;
  --accent-hover: #223c70;
  --accent-soft: #eaf0fb;
  --warn-bg: #fff7e8;
  --warn-border: #ecd4a3;
  --warn-text: #6b4c12;
  --code-bg: #131822;
  --code-text: #e5ecf7;
  --radius: 10px;
  --maxw: 1080px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .05), 0 8px 24px -12px rgba(16, 24, 40, .18);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1218;
    --surface: #161a22;
    --surface-alt: #1c212b;
    --border: #2a313d;
    --border-strong: #3a424f;
    --text: #e8ebf1;
    --text-muted: #9aa4b5;
    --accent: #7ea6f0;
    --accent-hover: #a2c0f7;
    --accent-soft: #1b2434;
    --warn-bg: #2a2415;
    --warn-border: #4d4222;
    --warn-text: #e2cd9a;
    --code-bg: #0a0d13;
    --code-text: #dbe4f2;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 8px 24px -12px rgba(0, 0, 0, .7);
  }
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", "Noto Sans TC", "Microsoft JhengHei", "PingFang TC",
               system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  overflow-wrap: break-word;
}

/* ---------- 語言切換 ---------- */
html[data-lang="zh"] .lang-en { display: none !important; }
html[data-lang="en"] .lang-zh { display: none !important; }

/* ---------- 版面 ---------- */
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 20px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: #fff;
  padding: 10px 16px;
  z-index: 100;
  border-radius: 0 0 var(--radius) 0;
}
.skip-link:focus { left: 0; }

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

.header-top {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 0;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: inherit;
  min-width: 0;
  flex: 1 1 auto;
}

.brand img {
  width: 76px;
  height: 76px;
  flex: 0 0 auto;
  border-radius: 8px;
  border: 1px solid var(--border);
  object-fit: cover;
  background: var(--surface-alt);
}

.brand-text { min-width: 0; }

.brand-name {
  display: block;
  margin: 0;
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: .01em;
  line-height: 1.3;
}

.brand-tagline {
  display: block;
  margin: 2px 0 0;
  font-size: .875rem;
  color: var(--text-muted);
  line-height: 1.45;
}

.lang-switch {
  flex: 0 0 auto;
  font: inherit;
  font-size: .8125rem;
  font-weight: 600;
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
}
.lang-switch:hover { border-color: var(--accent); color: var(--accent); }

.site-nav { border-top: 1px solid var(--border); }
.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 24px;
}
.site-nav a {
  display: inline-block;
  padding: 12px 0;
  color: var(--text-muted);
  text-decoration: none;
  font-size: .9375rem;
  font-weight: 500;
  border-bottom: 2px solid transparent;
}
.site-nav a:hover { color: var(--accent); }
.site-nav a[aria-current="page"] {
  color: var(--text);
  font-weight: 600;
  border-bottom-color: var(--accent);
}
.ext::after {
  content: " \2197";
  font-size: .8em;
  color: var(--text-muted);
}

/* ---------- 內容區塊 ---------- */
main { display: block; }

.section { padding: 44px 0; }
.section + .section { border-top: 1px solid var(--border); }

.hero { padding: 56px 0 44px; }
.hero h1 {
  margin: 0 0 12px;
  font-size: clamp(1.6rem, 4.2vw, 2.3rem);
  line-height: 1.3;
  letter-spacing: -.01em;
}
.hero .hero-sub {
  margin: 0 0 20px;
  font-size: clamp(1rem, 2.4vw, 1.125rem);
  color: var(--text-muted);
}
.hero p.lead { max-width: 70ch; margin: 0 0 24px; }

.page-head { padding: 44px 0 28px; }
.page-head h1 {
  margin: 0 0 8px;
  font-size: clamp(1.45rem, 3.8vw, 2rem);
  line-height: 1.3;
}
.effective-date {
  margin: 0;
  font-size: .9375rem;
  color: var(--text-muted);
}

h2 {
  font-size: clamp(1.2rem, 2.8vw, 1.4rem);
  line-height: 1.35;
  margin: 0 0 16px;
  letter-spacing: -.005em;
}
h3 {
  font-size: 1.0625rem;
  margin: 28px 0 10px;
  line-height: 1.45;
}
p { margin: 0 0 16px; max-width: 74ch; }
ul, ol { margin: 0 0 16px; padding-left: 1.35em; max-width: 74ch; }
li { margin: 6px 0; }
li > ul, li > ol { margin: 6px 0; }

a { color: var(--accent); }
a:hover { color: var(--accent-hover); }

strong { font-weight: 600; }

code, pre {
  font-family: "Cascadia Mono", Consolas, "SFMono-Regular", "Liberation Mono", Menlo, monospace;
}
code {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: .1em .38em;
  font-size: .875em;
}

.scope-box {
  background: var(--code-bg);
  color: var(--code-text);
  border-radius: var(--radius);
  padding: 16px 18px;
  overflow-x: auto;
  margin: 0 0 20px;
  border: 1px solid var(--border);
}
.scope-box code {
  background: none;
  border: 0;
  padding: 0;
  color: inherit;
  font-size: .9375rem;
  white-space: nowrap;
}

/* ---------- 卡片與格線 ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
  max-width: none;
}
.cards li {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin: 0;
}
.cards h3 {
  margin: 0 0 6px;
  font-size: 1rem;
  font-weight: 650;
}
.cards p {
  margin: 0;
  font-size: .9375rem;
  color: var(--text-muted);
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 24px;
  box-shadow: var(--shadow);
}
.panel > :last-child { margin-bottom: 0; }

.note {
  background: var(--accent-soft);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 16px 18px;
  margin: 0 0 20px;
}
.note > :last-child { margin-bottom: 0; }

.warn {
  background: var(--warn-bg);
  border: 1px solid var(--warn-border);
  border-left: 3px solid var(--warn-border);
  border-radius: var(--radius);
  padding: 16px 18px;
  margin: 0 0 20px;
  color: var(--warn-text);
}
.warn > :last-child { margin-bottom: 0; }

/* ---------- 資料流向 ---------- */
.flow {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  max-width: 640px;
}
.flow > li {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  margin: 0;
}
.flow .step-label {
  display: block;
  font-size: .75rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 4px;
}
.flow .step-title {
  display: block;
  font-weight: 650;
  line-height: 1.45;
}
.flow .step-note {
  display: block;
  font-size: .875rem;
  color: var(--text-muted);
  margin-top: 4px;
}
.flow-arrow {
  display: block;
  text-align: center;
  color: var(--text-muted);
  font-size: .8125rem;
  padding: 8px 0;
  line-height: 1.4;
}
.flow-arrow::before {
  content: "\2193";
  display: block;
  font-size: 1.05rem;
  line-height: 1.2;
}

/* ---------- 按鈕 ---------- */
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}
.btn {
  display: inline-block;
  padding: 11px 22px;
  border-radius: 8px;
  font-weight: 600;
  font-size: .9375rem;
  text-decoration: none;
  border: 1px solid transparent;
  line-height: 1.4;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.btn-primary:hover { background: var(--accent-hover); color: #fff; }
.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border-color: var(--border-strong);
}
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 8px;
  border: 1px dashed var(--border-strong);
  background: var(--surface-alt);
  color: var(--text-muted);
  font-size: .9375rem;
  font-weight: 500;
}

/* ---------- 預覽圖 ---------- */
figure.preview {
  margin: 0 0 24px;
  max-width: 42ch;
}
figure.preview img {
  display: block;
  width: 88px;
  height: 88px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface-alt);
}
figure.preview figcaption {
  font-size: .8125rem;
  color: var(--text-muted);
  margin-top: 8px;
}

/* ---------- 定義清單 ---------- */
.kv { margin: 0 0 16px; max-width: 74ch; }
.kv dt { font-weight: 650; margin-top: 14px; }
.kv dd { margin: 4px 0 0; color: var(--text-muted); }

/* ---------- 目錄 ---------- */
.toc {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 22px;
  margin: 0 0 32px;
}
.toc h2 {
  font-size: .8125rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin: 0 0 10px;
}
.toc ol {
  margin: 0;
  padding-left: 1.3em;
  font-size: .9375rem;
}

/* ---------- 頁尾 ---------- */
.site-footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  margin-top: 24px;
  padding: 32px 0 40px;
  font-size: .9375rem;
}
.footer-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 24px 48px;
  margin-bottom: 24px;
}
.footer-col { min-width: 200px; }
.footer-col h2 {
  font-size: .75rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin: 0 0 8px;
  font-weight: 650;
}
.footer-col ul { list-style: none; margin: 0; padding: 0; }
.footer-col li { margin: 4px 0; }
.footer-col a { text-decoration: none; }
.footer-col a:hover { text-decoration: underline; }

.disclaimer {
  border-top: 1px solid var(--border);
  padding-top: 18px;
  color: var(--text-muted);
  font-size: .875rem;
}
.disclaimer p { margin: 0 0 6px; max-width: none; }
.disclaimer p:last-child { margin-bottom: 0; }

/* ---------- 響應式 ---------- */
@media (max-width: 560px) {
  .brand img { width: 56px; height: 56px; }
  .brand-name { font-size: 1.05rem; }
  .brand-tagline { font-size: .8125rem; }
  .site-nav ul { gap: 0 18px; }
  .site-nav a { padding: 10px 0; font-size: .875rem; }
  .section { padding: 34px 0; }
  .hero { padding: 36px 0 32px; }
  .panel { padding: 18px; }
  .scope-box { padding: 14px; }
  .scope-box code { font-size: .8125rem; white-space: normal; word-break: break-all; }
}

@media print {
  .site-nav, .lang-switch, .actions { display: none; }
  body { background: #fff; color: #000; }
}

/* 流程箭頭本身不是卡片 */
.flow > li.flow-arrow {
  background: none;
  border: 0;
  padding: 6px 0;
}