:root {
  --bg: #f5f6f8;
  --panel: #ffffff;
  --recess: #eef0f3;
  --border: #dfe2e8;
  --text: #1a1d23;
  --muted: #6b7280;
  --accent: #3b6fe0;
  --accent-contrast: #ffffff;
  --green: #1a9d63;
  --yellow: #a5690f;
  --red: #c92a2a;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.06), 0 1px 3px rgba(16, 24, 40, 0.08);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }

body {
  background: var(--bg);
  color: var(--text);
  margin: 0;
  padding: 0 0 4rem;
}

header {
  padding: 2rem 2rem 1rem;
  border-bottom: 1px solid var(--border);
}

h1 { margin: 0 0 0.25rem; font-size: 1.5rem; }
.subtitle { color: var(--muted); margin: 0; font-size: 0.9rem; }

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 1.5rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 2rem 0;
  box-shadow: var(--shadow);
}

#settings-panel { max-width: 960px; margin: 1.5rem auto 0; }

.panel h2 { margin: 0 0 0.75rem; font-size: 1.05rem; }
.panel h3 { margin: 1rem 0 0.5rem; font-size: 0.9rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; }

.settings-row { display: flex; align-items: center; justify-content: space-between; margin-bottom: 0.75rem; }
.settings-row h2 { margin: 0; }

/* ---------- step wizard ---------- */

.step {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  transition: border-color 0.15s;
  box-shadow: var(--shadow);
}

.step-header {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: 1.1rem 1.5rem;
}

.step-num {
  flex: 0 0 auto;
  width: 1.8rem;
  height: 1.8rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
  background: var(--recess);
  border: 1px solid var(--border);
  color: var(--muted);
}
.step.done .step-num {
  background: rgba(26, 157, 99, 0.12);
  border-color: var(--green);
  color: var(--green);
}

.step-title-wrap { flex: 1 1 auto; min-width: 0; }
.step-title-wrap h2 { margin: 0; font-size: 1.05rem; }

.step-summary {
  margin-top: 0.2rem;
  font-size: 0.85rem;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.step-summary .muted { color: var(--muted); }

.change-btn { flex: 0 0 auto; }

.step-body { padding: 0 1.5rem 1.25rem; }
.step-body h3 { margin: 1rem 0 0.5rem; font-size: 0.9rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; }
.step-body h3:first-child { margin-top: 0; }
.step-body > input[type="text"] { margin-bottom: 0.75rem; width: 100%; }

.sale-summary {
  background: var(--recess);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.8rem 1rem;
  margin-bottom: 1.25rem;
  font-size: 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.sale-summary .row-line { display: flex; gap: 0.5rem; }
.sale-summary .row-line .k { color: var(--muted); min-width: 90px; flex: 0 0 auto; }

.payload-details { margin: 0.5rem 0 1rem; }
.payload-details summary {
  cursor: pointer;
  color: var(--muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.payload-details[open] summary { margin-bottom: 0.5rem; }

.row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: end;
  margin-bottom: 0.75rem;
}

label {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  font-size: 0.8rem;
  color: var(--muted);
  flex: 1;
  min-width: 200px;
}

input[type="text"], input[type="number"], input[type="datetime-local"] {
  background: var(--recess);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  padding: 0.5rem 0.6rem;
  font-size: 0.9rem;
}

.checkbox-row {
  flex-direction: row;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text);
}

button {
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  padding: 0.55rem 1rem;
  cursor: pointer;
  font-size: 0.85rem;
}
button:hover { border-color: var(--accent); }
button:disabled { opacity: 0.5; cursor: not-allowed; }
button:disabled:hover { border-color: var(--border); }
button.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-contrast);
  font-weight: 600;
  margin-top: 0.5rem;
}
button.ghost { background: transparent; }

.hint { color: var(--muted); font-size: 0.8rem; margin: 0.25rem 0 0; }

.list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-height: 360px;
  overflow-y: auto;
}

.card {
  background: var(--recess);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.7rem 0.9rem;
  cursor: pointer;
  transition: border-color 0.1s, background 0.1s;
}
.card:hover { border-color: var(--accent); background: var(--panel); }
.card.selected { border-color: var(--accent); background: rgba(59, 111, 224, 0.08); }
.card .title { font-weight: 600; font-size: 0.92rem; }
.card .meta { color: var(--muted); font-size: 0.78rem; margin-top: 0.2rem; }

.badge {
  display: inline-block;
  border-radius: 4px;
  padding: 0.1rem 0.4rem;
  font-size: 0.7rem;
  font-weight: 600;
  margin-left: 0.4rem;
}
.badge.ok { background: rgba(62,207,142,0.15); color: var(--green); }
.badge.warn { background: rgba(224,179,65,0.15); color: var(--yellow); }
.badge.bad { background: rgba(239,91,91,0.15); color: var(--red); }

.card-group {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.7rem 0.9rem;
}
.card-group .title { font-weight: 600; font-size: 0.92rem; }
.card-group .meta { color: var(--muted); font-size: 0.78rem; margin-top: 0.2rem; }

.sku-row-card {
  margin-top: 0.6rem;
}
.sku-row-card.disabled {
  cursor: default;
}
.sku-row-card.disabled:hover { border-color: var(--border); }

.code-block {
  background: var(--recess);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.8rem 1rem;
  font-size: 0.8rem;
  overflow-x: auto;
  white-space: pre;
}

#result-box { margin-top: 1rem; }
.result-status {
  display: inline-block;
  border-radius: 6px;
  padding: 0.3rem 0.7rem;
  font-weight: 700;
  font-size: 0.8rem;
  margin-bottom: 0.5rem;
}
.result-status.matched { background: rgba(62,207,142,0.15); color: var(--green); }
.result-status.rejected { background: rgba(224,179,65,0.15); color: var(--yellow); }
.result-status.error { background: rgba(239,91,91,0.15); color: var(--red); }

#wallet-summary { font-size: 0.9rem; margin-bottom: 0.5rem; }