:root {
  --bg-body: #0d1117;
  --bg-surface: #161b22;
  --bg-card: #21262d;
  --bg-card-hover: #29303a;
  --border-color: #30363d;
  --border-highlight: #38bdf8;
  --text-main: #f0f6fc;
  --text-muted: #8b949e;
  --text-dim: #6e7681;
  --brand-blue: #38bdf8;
  --brand-blue-bg: rgba(56, 189, 248, 0.12);
  --brand-green: #2ea043;
  --brand-green-hover: #3fb950;
  --brand-green-bg: rgba(46, 160, 67, 0.15);
  --brand-amber: #d29922;
  --brand-red: #f85149;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { background-color: var(--bg-body); color: var(--text-main); font-family: var(--font-family); min-height: 100vh; display: flex; flex-direction: column; }
.store-header { background-color: var(--bg-surface); border-bottom: 1px solid var(--border-color); padding: 14px 24px; display: flex; align-items: center; justify-content: space-between; position: sticky; top: 0; z-index: 100; }
.header-left { display: flex; align-items: center; gap: 14px; }
.brand-logo { width: 44px; height: 44px; border-radius: var(--radius-sm); }
.brand-title-row { display: flex; align-items: center; gap: 8px; }
.brand-title { font-size: 20px; font-weight: 700; letter-spacing: -0.5px; }
.brand-ver { font-size: 11px; background-color: var(--border-color); color: var(--brand-blue); padding: 2px 6px; border-radius: 4px; font-family: monospace; }
.brand-badge { font-size: 11px; background-color: var(--brand-blue-bg); color: var(--brand-blue); border: 1px solid rgba(56, 189, 248, 0.3); padding: 2px 8px; border-radius: 12px; font-weight: 600; }
.brand-sub { font-size: 12px; color: var(--text-muted); }
.header-right { display: flex; align-items: center; gap: 10px; }
.btn-lang, .btn-refresh { background-color: var(--bg-card); color: var(--text-main); border: 1px solid var(--border-color); padding: 6px 12px; border-radius: var(--radius-sm); font-size: 13px; font-weight: 600; cursor: pointer; transition: all 0.2s ease; }
.btn-lang:hover, .btn-refresh:hover { background-color: var(--border-color); border-color: var(--brand-blue); }
.store-controls { padding: 20px 24px 10px 24px; max-width: 1200px; margin: 0 auto; width: 100%; }
.search-wrapper input { width: 100%; padding: 12px 16px; background-color: var(--bg-surface); border: 1px solid var(--border-color); border-radius: var(--radius-md); color: var(--text-main); font-size: 15px; outline: none; transition: border-color 0.2s ease; }
.search-wrapper input:focus { border-color: var(--brand-blue); }
.filter-pills { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.pill { background-color: var(--bg-surface); border: 1px solid var(--border-color); color: var(--text-muted); padding: 6px 14px; border-radius: 20px; font-size: 13px; font-weight: 500; cursor: pointer; transition: all 0.2s ease; }
.pill:hover { color: var(--text-main); border-color: var(--text-muted); }
.pill.active { background-color: #0969da; border-color: #38bdf8; color: #ffffff; font-weight: 600; }
.status-bar { display: flex; align-items: center; justify-content: space-between; margin-top: 12px; font-size: 12px; color: var(--text-muted); }
.security-indicator { color: var(--brand-green); font-weight: 500; }
.store-main { flex: 1; padding: 10px 24px 30px 24px; max-width: 1200px; margin: 0 auto; width: 100%; }
.apps-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 16px; margin-top: 10px; }
.app-card { background-color: var(--bg-surface); border: 1px solid var(--border-color); border-radius: var(--radius-lg); padding: 18px; display: flex; flex-direction: column; justify-content: space-between; transition: all 0.2s ease; }
.app-card:hover { border-color: rgba(56, 189, 248, 0.4); transform: translateY(-2px); box-shadow: var(--shadow); }
.app-card-top { display: flex; gap: 14px; }
.app-icon { width: 52px; height: 52px; border-radius: var(--radius-md); object-fit: contain; background-color: var(--bg-card); padding: 4px; border: 1px solid var(--border-color); }
.app-info { flex: 1; }
.app-header-row { display: flex; align-items: center; justify-content: space-between; gap: 6px; }
.app-name { font-size: 17px; font-weight: 700; }
.app-ver-tag { font-size: 11px; background-color: var(--bg-card); color: var(--brand-blue); padding: 2px 6px; border-radius: 4px; font-family: monospace; }
.app-summary { font-size: 13px; color: var(--text-muted); margin-top: 6px; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.app-meta-row { display: flex; align-items: center; gap: 6px; margin-top: 12px; }
.platform-pill { font-size: 10px; font-weight: 700; text-transform: uppercase; padding: 2px 6px; border-radius: 4px; background-color: rgba(210, 153, 34, 0.15); color: var(--brand-amber); border: 1px solid rgba(210, 153, 34, 0.3); }
.platform-pill.android { background-color: var(--brand-green-bg); color: var(--brand-green); border-color: rgba(46, 160, 67, 0.3); }
.platform-pill.pc { background-color: var(--brand-blue-bg); color: var(--brand-blue); border-color: rgba(56, 189, 248, 0.3); }
.app-card-actions { display: flex; gap: 8px; margin-top: 16px; }
.btn-action { flex: 1; padding: 8px 12px; border-radius: var(--radius-sm); font-size: 13px; font-weight: 600; border: none; cursor: pointer; transition: all 0.2s ease; display: flex; align-items: center; justify-content: center; gap: 6px; }
.btn-primary { background-color: var(--brand-green); color: #ffffff; }
.btn-primary:hover { background-color: var(--brand-green-hover); }
.btn-launch { background-color: #0969da; color: #ffffff; }
.btn-secondary { background-color: var(--bg-card); color: var(--text-main); border: 1px solid var(--border-color); }
.btn-secondary:hover { background-color: var(--border-color); }
.modal-overlay { position: fixed; top: 0; left: 0; right: 0; bottom: 0; background-color: rgba(0, 0, 0, 0.75); display: none; align-items: center; justify-content: center; z-index: 1000; backdrop-filter: blur(4px); }
.modal-overlay.open { display: flex; }
.modal-content { background-color: var(--bg-surface); border: 1px solid var(--border-color); border-radius: var(--radius-lg); width: 90%; max-width: 600px; max-height: 90vh; overflow-y: auto; padding: 24px; position: relative; box-shadow: 0 12px 36px rgba(0, 0, 0, 0.8); }
.modal-close { position: absolute; top: 16px; right: 16px; background: none; border: none; color: var(--text-muted); font-size: 24px; cursor: pointer; }
.modal-close:hover { color: var(--text-main); }
.detail-hero { display: flex; gap: 16px; align-items: center; border-bottom: 1px solid var(--border-color); padding-bottom: 16px; margin-bottom: 16px; }
.detail-hero img { width: 64px; height: 64px; border-radius: var(--radius-md); background-color: var(--bg-card); padding: 4px; }
.detail-desc { font-size: 14px; line-height: 1.5; color: var(--text-main); margin-bottom: 16px; }
.version-picker-box { background-color: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius-md); padding: 16px; margin-bottom: 16px; }
.version-select { width: 100%; padding: 8px 12px; background-color: var(--bg-surface); border: 1px solid var(--border-color); border-radius: var(--radius-sm); color: var(--text-main); font-size: 14px; margin-top: 8px; outline: none; }
.version-changelog { font-size: 13px; color: var(--text-muted); margin-top: 10px; padding: 8px; background-color: var(--bg-surface); border-radius: var(--radius-sm); }
.sha256-box { font-family: monospace; font-size: 11px; color: var(--brand-blue); word-break: break-all; margin-top: 8px; background-color: var(--bg-surface); padding: 8px; border-radius: var(--radius-sm); border: 1px solid rgba(56, 189, 248, 0.2); }
.toast-bar { position: fixed; bottom: 24px; right: 24px; background-color: var(--bg-surface); border: 1px solid var(--brand-blue); color: var(--text-main); padding: 12px 20px; border-radius: var(--radius-md); box-shadow: var(--shadow); display: none; font-size: 14px; z-index: 2000; }
.toast-bar.show { display: block; }

/* Installation Badges & Status */
.install-badge {
  font-size: 11px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.badge-installed {
  background-color: var(--brand-green-bg);
  color: var(--brand-green-hover);
  border: 1px solid rgba(46, 160, 67, 0.35);
}
.badge-update {
  background-color: rgba(210, 153, 34, 0.15);
  color: var(--brand-amber);
  border: 1px solid rgba(210, 153, 34, 0.35);
}
.badge-downgrade {
  background-color: rgba(248, 81, 73, 0.15);
  color: var(--brand-red);
  border: 1px solid rgba(248, 81, 73, 0.35);
}

.modal-status-banner {
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  line-height: 1.4;
  margin-top: 10px;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.banner-installed {
  background-color: var(--brand-green-bg);
  color: var(--brand-green-hover);
  border: 1px solid rgba(46, 160, 67, 0.35);
}
.banner-update {
  background-color: rgba(210, 153, 34, 0.15);
  color: var(--brand-amber);
  border: 1px solid rgba(210, 153, 34, 0.35);
}
.banner-downgrade {
  background-color: rgba(248, 81, 73, 0.15);
  color: var(--brand-red);
  border: 1px solid rgba(248, 81, 73, 0.35);
}

.btn-update {
  background-color: var(--brand-amber);
  color: #0d1117;
  font-weight: 700;
}
.btn-update:hover {
  background-color: #e3b341;
}

.btn-danger {
  background-color: var(--brand-red);
  color: #ffffff;
  font-weight: 700;
}
.btn-danger:hover {
  background-color: #f85149dd;
}

.btn-disabled {
  background-color: var(--bg-card);
  color: var(--text-dim);
  border: 1px solid var(--border-color);
  cursor: not-allowed;
  opacity: 0.7;
}

/* Update Alert Banner */
.update-alert-bar {
  display: flex;
  align-items: center;
  gap: 14px;
  background-color: rgba(210, 153, 34, 0.12);
  border: 1px solid rgba(210, 153, 34, 0.35);
  border-radius: var(--radius-md);
  padding: 12px 18px;
  margin-top: 14px;
}
.update-icon {
  font-size: 22px;
}
.update-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.update-info strong {
  color: var(--brand-amber);
  font-size: 14px;
}
.update-info span {
  color: var(--text-main);
  font-size: 12px;
}
.btn-update-view {
  background-color: var(--brand-amber);
  color: #0d1117;
  font-weight: 700;
  border: none;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  cursor: pointer;
  transition: opacity 0.2s ease;
}
.btn-update-view:hover {
  opacity: 0.9;
}

/* Light Mode Support */
[data-theme="light"] {
  --bg-body: #f6f8fa;
  --bg-surface: #ffffff;
  --bg-card: #f1f3f5;
  --bg-card-hover: #eaeef2;
  --border-color: #d0d7de;
  --border-highlight: #0969da;
  --text-main: #1f2328;
  --text-muted: #656d76;
  --text-dim: #8c959f;
  --brand-blue: #0969da;
  --brand-blue-bg: #ddf4ff;
  --brand-green: #1f883d;
  --brand-green-hover: #1a7f37;
  --brand-green-bg: #dafbe1;
  --brand-amber: #9a6700;
  --brand-red: #cf222e;
  --shadow: 0 4px 12px rgba(31, 35, 40, 0.08);
}

.breadcrumb-back {
  color: var(--brand-blue);
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
  display: flex;
  align-items: center;
  transition: opacity 0.2s ease;
}
.breadcrumb-back:hover {
  text-decoration: underline;
  opacity: 0.85;
}
.brand-divider {
  width: 1px;
  height: 24px;
  background-color: var(--border-color);
  margin: 0 4px;
}
.brand-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.theme-btn {
  background-color: var(--bg-card);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s ease;
}
.theme-btn:hover {
  background-color: var(--border-color);
}
.app-footer {
  margin-top: auto;
  padding: 24px;
  border-top: 1px solid var(--border-color);
  background-color: var(--bg-surface);
  text-align: center;
}
.app-footer .footer-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 12px;
  font-size: 12px;
  color: var(--text-muted);
}
.app-footer a {
  color: var(--brand-blue);
  text-decoration: none;
}
.app-footer a:hover {
  text-decoration: underline;
}