:root {
  --bg: #f7f7f5;
  --surface: #ffffff;
  --ink: #0f172a;
  --ink-soft: #475569;
  --accent: #ef4444;
  --accent-ink: #ffffff;
  --line: #e5e7eb;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(15, 23, 42, 0.06), 0 4px 12px rgba(15, 23, 42, 0.06);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, "Apple Color Emoji";
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
a:hover { text-decoration: underline; }

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

/* Header */
.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 10;
}
.site-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 64px;
}
.brand {
  font-weight: 700;
  font-size: 18px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 800;
}
.site-header nav { display: flex; gap: 18px; }
.site-header nav a[aria-current="page"] {
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* Footer */
.site-footer {
  margin-top: 64px;
  padding: 24px 0;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 14px;
  background: var(--surface);
}

/* Generic */
main.container { padding-top: 32px; padding-bottom: 32px; }
.muted { color: var(--ink-soft); }
.lead { font-size: 18px; color: var(--ink-soft); margin-top: 0; }

h1 { font-size: 32px; line-height: 1.2; margin: 0 0 8px; }
h2 { font-size: 22px; margin: 32px 0 14px; }
h3 { font-size: 16px; margin: 0 0 4px; }

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin: 32px 0 14px;
}
.section-head h2 { margin: 0; }

.btn {
  display: inline-block;
  padding: 12px 18px;
  background: var(--ink);
  color: var(--surface);
  border-radius: 999px;
  font-weight: 600;
  border: 0;
  cursor: pointer;
}
.btn:hover { text-decoration: none; opacity: 0.92; }

/* Hero */
.hero {
  padding: 28px 0 12px;
}
.hero.compact { padding: 16px 0 8px; }
.hero h1 { font-size: 40px; }
@media (max-width: 600px) { .hero h1 { font-size: 30px; } }
.hero input[type="search"] {
  width: 100%;
  max-width: 480px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 16px;
  background: var(--surface);
}

/* Logos */
.shop-logo {
  display: inline-block;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  object-fit: contain;
  flex-shrink: 0;
}
.shop-logo--sm { width: 32px; height: 32px; padding: 3px; border-radius: 8px; }
.shop-logo--md { width: 44px; height: 44px; padding: 4px; }
.shop-logo--lg { width: 64px; height: 64px; padding: 6px; }
.shop-logo--placeholder {
  display: inline-grid;
  place-items: center;
  background: #f1f5f9;
  color: var(--ink-soft);
  font-weight: 700;
  border-style: dashed;
}
.shop-logo--sm.shop-logo--placeholder { font-size: 14px; }
.shop-logo--md.shop-logo--placeholder { font-size: 18px; }
.shop-logo--lg.shop-logo--placeholder { font-size: 26px; }

/* Grid of shop cards */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 14px;
}
.card {
  display: block;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
  transition: transform 0.12s ease, border-color 0.12s ease;
}
.card:hover { transform: translateY(-1px); border-color: #cbd5e1; text-decoration: none; }
.card-row { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.shop-card { display: flex; align-items: center; gap: 12px; }
.shop-card-body { flex: 1; min-width: 0; }
.shop-card h3 { font-size: 15px; }
.shop-card-body .card-row h3 {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.badge {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 999px;
  background: #fee2e2;
  color: #b91c1c;
}

/* Latest list */
.latest-list {
  list-style: none;
  margin: 0;
  padding: 0;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.latest-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 16px;
  border-bottom: 1px solid var(--line);
}
.latest-list li:last-child { border-bottom: 0; }
.latest-list li > a {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1;
  min-width: 0;
}
.latest-list .latest-text {
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.latest-list .date {
  color: var(--ink-soft);
  font-size: 14px;
  flex-shrink: 0;
  padding-left: 12px;
}

/* Alphabetical index */
.alpha-index {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 12px 0 24px;
}
.alpha-index a {
  display: inline-grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--surface);
  border: 1px solid var(--line);
  font-weight: 600;
  font-size: 14px;
}
.alpha-index a:hover { background: var(--ink); color: var(--surface); text-decoration: none; }

.letter-block { margin-top: 20px; }
.letter-block h2 { margin: 16px 0 12px; }

/* Breadcrumb */
.breadcrumb {
  font-size: 14px;
  color: var(--ink-soft);
  margin-bottom: 8px;
}
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb span { margin: 0 6px; }

/* Shop detail */
.shop-hero {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 8px;
  margin-bottom: 24px;
}
.shop-hero em { color: var(--ink); font-style: normal; font-weight: 600; }
.shop-hero h1 { margin-bottom: 4px; }
.shop-hero .lead { margin-top: 0; }

.codes { display: flex; flex-direction: column; gap: 12px; }

.code {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  padding: 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
@media (max-width: 600px) {
  .code { flex-direction: column; align-items: stretch; }
}

.code-info h3 { font-size: 18px; }
.code-action { display: flex; flex-direction: column; gap: 8px; align-items: flex-end; }
@media (max-width: 600px) {
  .code-action { align-items: stretch; }
}

.code-value {
  display: inline-flex;
  align-items: stretch;
  border: 1.5px dashed #cbd5e1;
  border-radius: 10px;
  background: #f8fafc;
  overflow: hidden;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}
.code-text {
  padding: 10px 14px;
  letter-spacing: 0.02em;
  font-weight: 700;
  color: #94a3b8;
  filter: blur(5px);
  user-select: none;
}
.code.is-revealed .code-text {
  filter: none;
  color: var(--ink);
  user-select: text;
}
.copy-btn {
  border: 0;
  border-left: 1.5px dashed #cbd5e1;
  background: transparent;
  padding: 0 14px;
  font-weight: 600;
  cursor: pointer;
}
.code:not(.is-revealed) .copy-btn { display: none; }

.reveal-btn {
  border: 0;
  background: var(--accent);
  color: var(--accent-ink);
  padding: 12px 18px;
  border-radius: 10px;
  font-weight: 700;
  cursor: pointer;
}
.reveal-btn:hover { opacity: 0.94; }
.code.is-revealed .reveal-btn { display: none; }

.shop-meta { margin-top: 36px; }
.shop-meta h2 { font-size: 18px; margin-top: 24px; }
.shop-meta ol { padding-left: 20px; }