/* =========================================================
   Guandan – Shared Stylesheet
   Theme: dark background, green felt, gold accents
   Layout: two-column bilingual (ZH left / EN right)
   ========================================================= */

/* ── Reset & base ─────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg:          #0e1a12;
  --surface:     #162010;
  --surface2:    #1c2b18;
  --border:      #2e4a2a;
  --gold:        #c9a84c;
  --gold-light:  #e8c96a;
  --green:       #3a7d44;
  --green-light: #4caf62;
  --text-main:   #e8e6e0;
  --text-muted:  #8fa88a;
  --text-en:     #d4d0c4;
  --divider:     #2a3d26;
  --radius:      8px;
  --font-zh:     "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-en:     "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg);
  color: var(--text-main);
  font-family: var(--font-en);
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--gold);
  text-decoration: none;
}
a:hover {
  color: var(--gold-light);
  text-decoration: underline;
}

/* ── Site header ──────────────────────────────────────────── */
.site-header {
  background: var(--surface);
  border-bottom: 2px solid var(--green);
  padding: 2rem 1.5rem 1.5rem;
  text-align: center;
}

.site-header .game-title {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--gold);
  font-family: var(--font-zh);
  text-shadow: 0 2px 8px rgba(201, 168, 76, 0.35);
}

.site-header .game-subtitle {
  margin-top: 0.6rem;
  font-size: clamp(0.85rem, 2vw, 1rem);
  color: var(--text-muted);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.site-header nav {
  margin-top: 1.2rem;
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  font-size: 0.9rem;
}

.site-header nav a {
  color: var(--text-muted);
  border: 1px solid var(--border);
  padding: 0.3rem 0.9rem;
  border-radius: var(--radius);
  transition: color 0.2s, border-color 0.2s;
}
.site-header nav a:hover {
  color: var(--gold);
  border-color: var(--gold);
  text-decoration: none;
}

/* ── Main two-column layout ───────────────────────────────── */
.main-wrapper {
  flex: 1;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

.bilingual-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

/* Left column – Chinese */
.col-zh {
  background: var(--surface);
  border-right: 1px solid var(--divider);
  padding: 2rem 1.5rem;
  font-family: var(--font-zh);
}

/* Right column – English */
.col-en {
  background: var(--surface2);
  padding: 2rem 1.5rem;
  font-family: var(--font-en);
  color: var(--text-en);
}

/* Column header label */
.col-lang-label {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--green-light);
  border: 1px solid var(--green);
  border-radius: 3px;
  padding: 0.15rem 0.5rem;
  margin-bottom: 1rem;
}

/* ── Sections within a column ─────────────────────────────── */
.col-section {
  margin-bottom: 2rem;
}

.col-section:last-child {
  margin-bottom: 0;
}

.col-section h2 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--gold);
  border-left: 3px solid var(--green);
  padding-left: 0.6rem;
  margin-bottom: 0.8rem;
}

.col-section p {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 0.6rem;
}

/* Hero intro paragraph */
.intro-text {
  font-size: 1rem;
  color: var(--text-main);
  margin-bottom: 1rem;
  line-height: 1.8;
}

/* ── Feature list ─────────────────────────────────────────── */
.feature-list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.95rem;
  color: var(--text-main);
}

.feature-list li::before {
  content: "♦";
  color: var(--green-light);
  font-size: 0.75rem;
  margin-top: 0.3rem;
  flex-shrink: 0;
}

.feature-list .badge-wip {
  font-size: 0.72rem;
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 0.1rem 0.35rem;
  white-space: nowrap;
}

/* ── Note / info box ──────────────────────────────────────── */
.note-box {
  background: rgba(58, 125, 68, 0.08);
  border: 1px solid var(--border);
  border-left: 3px solid var(--green);
  border-radius: var(--radius);
  padding: 0.9rem 1rem;
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ── Support block ────────────────────────────────────────── */
.support-block {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.9rem 1rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.col-zh .support-block {
  background: var(--surface);
}

.support-block a {
  color: var(--gold);
}

/* ── Notice bar (three statements) ───────────────────────── */
.notice-bar {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto 0;
  padding: 0 1rem;
}

.notice-bar-inner {
  background: rgba(58, 125, 68, 0.08);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}

.notice-bar-zh,
.notice-bar-en {
  padding: 0 1rem;
}

.notice-bar-zh {
  border-right: 1px solid var(--divider);
  font-family: var(--font-zh);
  font-size: 0.85rem;
  color: var(--text-muted);
}

.notice-bar-en {
  font-family: var(--font-en);
  font-size: 0.85rem;
  color: var(--text-muted);
}

.notice-bar ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.notice-bar ul li::before {
  content: "· ";
  color: var(--green-light);
}

/* ── Site footer ──────────────────────────────────────────── */
.site-footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  text-align: center;
  padding: 1.2rem 1rem;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 2.5rem;
}

.site-footer a {
  color: var(--text-muted);
}
.site-footer a:hover {
  color: var(--gold);
}

/* ── Back link ────────────────────────────────────────────── */
.back-link {
  display: inline-block;
  margin: 0 1rem 1rem;
  font-size: 0.88rem;
  color: var(--text-muted);
}
.back-link:hover {
  color: var(--gold);
}

/* ── Privacy page sections ────────────────────────────────── */
.privacy-section {
  margin-bottom: 1.6rem;
}

.privacy-section h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--gold-light);
  margin-bottom: 0.4rem;
}

.privacy-section p {
  font-size: 0.93rem;
  color: var(--text-muted);
  line-height: 1.75;
}

.last-updated {
  font-size: 0.85rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  padding-top: 0.8rem;
  margin-top: 1.2rem;
}

/* ── Responsive – stack columns on narrow screens ─────────── */
@media (max-width: 720px) {
  .bilingual-grid {
    grid-template-columns: 1fr;
  }

  .col-zh {
    border-right: none;
    border-bottom: 2px solid var(--divider);
  }

  .notice-bar-inner {
    grid-template-columns: 1fr;
  }

  .notice-bar-zh {
    border-right: none;
    border-bottom: 1px solid var(--divider);
    padding-bottom: 0.75rem;
    margin-bottom: 0.75rem;
  }
}