:root {
  --ink: #1f2328;
  --paper: #faf8f5;
  --ruby: #c0292b;
  --muted: #6b7076;
  --line: #e4e0da;
}

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.5 system-ui, -apple-system, sans-serif;
}

a { color: var(--ruby); }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding: 12px 16px;
  background: var(--ink);
}

.topbar a { color: #fff; text-decoration: none; }
.topbar .brand { font-weight: 800; font-size: 1.2rem; }
.topbar nav { display: flex; gap: 16px; }

.page { max-width: 720px; margin: 0 auto; padding: 16px; }

.you { color: var(--muted); margin: 0 0 12px; }

.flash { padding: 10px 14px; border-radius: 8px; }
.flash.notice { background: #e6f4ea; color: #1e6b34; }
.flash.alert { background: #fdecea; color: #a12622; }

.hero {
  background: var(--ruby);
  color: #fff;
  padding: 20px;
  border-radius: 12px;
  margin-bottom: 20px;
}

.hero h1 { margin: 0 0 8px; font-size: 1.6rem; }
.hero p { margin: 0; }

.categories { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 16px; }

.chip {
  padding: 4px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  text-decoration: none;
  color: var(--ink);
}

.search { display: flex; gap: 8px; margin-bottom: 16px; }
.search input[type=text] { flex: 1; min-width: 0; }

input[type=text], input[type=number] {
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 1rem;
}

.products { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; }

.card {
  display: block;
  padding: 16px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  text-decoration: none;
  color: var(--ink);
}

.card h3 { margin: 0 0 4px; font-size: 1.05rem; }
.card .category { color: var(--muted); font-size: 0.85rem; }

.price { margin: 8px 0 0; }
.price s { color: var(--muted); }
.price .free { color: var(--ruby); font-weight: 800; margin-left: 6px; }

.stock-low { color: #b45309; font-size: 0.85rem; }
.stock-out { color: var(--ruby); font-size: 0.85rem; }

.button, button, input[type=submit] {
  display: inline-block;
  padding: 12px 20px;
  border: 0;
  border-radius: 10px;
  background: var(--ruby);
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
}

.button.secondary, button.secondary { background: #fff; color: var(--ink); border: 1px solid var(--line); }
.wide, .wide button { width: 100%; }

.lines { list-style: none; padding: 0; margin: 0 0 16px; }
.lines li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.lines form { display: inline; }
.lines button { padding: 6px 12px; font-size: 0.85rem; }

.total { display: flex; justify-content: space-between; font-weight: 800; font-size: 1.1rem; margin-bottom: 16px; }

.actions { display: flex; flex-direction: column; gap: 10px; }

.status {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 700;
  background: var(--line);
}

.status.paid, .status.shipped, .status.delivered { background: #e6f4ea; color: #1e6b34; }
.status.pending { background: #fff4d6; color: #8a5a00; }
.status.cancelled { background: #fdecea; color: #a12622; }