:root {
  --bg: #0f1115;
  --panel: #181b22;
  --panel-2: #20242d;
  --text: #ececf1;
  --muted: #9aa1ad;
  --accent: #4f8cff;
  --border: #2a2f3a;
  --shadow: 0 6px 20px rgba(0, 0, 0, 0.35);
  --radius: 14px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Inter, sans-serif;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

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

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 24px 20px 80px;
}

header.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0 24px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 28px;
  flex-wrap: wrap;
  gap: 12px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--text);
}

.logo .badge {
  width: 32px; height: 32px; border-radius: 8px;
  background: linear-gradient(135deg, #4f8cff, #6c5ce7);
  display: inline-flex; align-items: center; justify-content: center;
  color: white; font-weight: 800;
}

nav.site-nav a {
  margin-left: 18px;
  color: var(--muted);
  font-weight: 500;
}
nav.site-nav a:hover { color: var(--text); text-decoration: none; }

h1 { font-size: 2.1rem; margin: 8px 0 6px; letter-spacing: -0.01em; }
h2 { font-size: 1.4rem; margin: 28px 0 12px; }
.lead { color: var(--muted); font-size: 1.05rem; max-width: 720px; }

.search-row {
  margin: 24px 0 8px;
}
.search-row input {
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  font-size: 1rem;
}
.search-row input:focus { outline: none; border-color: var(--accent); }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
  margin-top: 14px;
}

.store-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: transform .12s ease, border-color .12s ease, background .12s ease;
  cursor: pointer;
  color: var(--text);
}
.store-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  background: var(--panel-2);
  text-decoration: none;
}
.store-card .store-name {
  font-size: 1.1rem;
  font-weight: 700;
}
.store-card .store-program {
  color: var(--muted);
  font-size: 0.92rem;
}
.store-card .country {
  margin-top: 6px;
  font-size: 0.85rem;
  color: var(--muted);
}
.store-card .swatch {
  width: 40px; height: 6px; border-radius: 3px; margin-top: 8px;
}

.card-panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow);
}

.barcode-stage {
  background: white;
  border-radius: 12px;
  padding: 24px 16px;
  text-align: center;
  margin: 18px 0 10px;
}
.barcode-stage svg { max-width: 100%; height: auto; }

.code-text {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 1.1rem;
  letter-spacing: 0.06em;
  color: var(--text);
  background: var(--panel-2);
  padding: 10px 14px;
  border-radius: 8px;
  display: inline-block;
  border: 1px solid var(--border);
}

.actions { display: flex; gap: 10px; margin-top: 12px; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  font-weight: 600;
  cursor: pointer;
  font-size: 0.95rem;
}
.btn:hover { border-color: var(--accent); text-decoration: none; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: white; }
.btn.primary:hover { background: #3a78ee; }

.notice {
  background: rgba(79, 140, 255, 0.08);
  border: 1px solid rgba(79, 140, 255, 0.25);
  color: var(--text);
  padding: 12px 14px;
  border-radius: 10px;
  font-size: 0.92rem;
}

footer {
  margin-top: 60px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.9rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

.about-content p { color: var(--text); max-width: 720px; }
.about-content ul { color: var(--text); max-width: 720px; }

.kbd {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 6px;
  font-family: ui-monospace, monospace;
  font-size: 0.85em;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  margin-bottom: 8px;
}
.back-link:hover { color: var(--text); text-decoration: none; }

@media (max-width: 540px) {
  h1 { font-size: 1.6rem; }
  nav.site-nav a { margin-left: 12px; font-size: 0.95rem; }
}