:root {
  --bg: #f4f5f7;
  --card: #ffffff;
  --text: #1c1e21;
  --muted: #6b7280;
  --border: #e5e7eb;
  --accent: #2563eb;
  --accent-contrast: #ffffff;
  --danger: #dc2626;
  --ok: #16a34a;
  --warn: #d97706;
  --radius: 10px;
}

* {
  box-sizing: border-box;
}

[x-cloak] {
  display: none !important;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  padding-bottom: 4rem;
}

header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

nav {
  max-width: 640px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 1rem;
}

nav .brand {
  font-weight: 700;
  font-size: 1.15rem;
}

nav .links {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.lang-btn {
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  border-radius: var(--radius);
  padding: 0.4rem 0.6rem;
  font-weight: 700;
  font-size: 0.8rem;
  cursor: pointer;
  letter-spacing: 0.02em;
}

.lang-btn:active {
  background: var(--bg);
}

nav a {
  text-decoration: none;
  color: var(--muted);
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
}

nav a.active {
  color: var(--accent-contrast);
  background: var(--accent);
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.3rem;
  height: 1.3rem;
  padding: 0 0.35rem;
  border-radius: 999px;
  background: var(--danger);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  margin-left: 0.4rem;
}

main {
  max-width: 640px;
  margin: 0 auto;
  padding: 1rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  margin-bottom: 0.75rem;
}

.product-row {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.product-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.5rem;
}

.product-name {
  font-weight: 700;
  font-size: 1.05rem;
}

.product-amount {
  color: var(--muted);
  font-size: 0.9rem;
  white-space: nowrap;
}

.product-status {
  font-size: 0.82rem;
  color: var(--muted);
}

.product-status-btn {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.5rem;
  background: none;
  border: none;
  padding: 0;
  width: 100%;
  text-align: left;
  font-size: 0.82rem;
  color: var(--muted);
  cursor: pointer;
  font-family: inherit;
}

.history-caret {
  color: var(--accent);
  white-space: nowrap;
  font-size: 0.78rem;
}

.history-panel {
  margin-top: 0.6rem;
  padding: 0.6rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
}

.history-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.history-header button.link:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.history-empty {
  font-size: 0.82rem;
  color: var(--muted);
}

.history-entry {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  padding: 0.3rem 0;
  border-top: 1px solid var(--border);
}

.history-entry:first-of-type {
  border-top: none;
}

.progress {
  height: 8px;
  background: var(--border);
  border-radius: 999px;
  overflow: hidden;
}

.progress > div {
  height: 100%;
  background: var(--ok);
  transition: width 0.2s ease;
}

.progress.low > div {
  background: var(--danger);
}

.stepper {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.stepper button {
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--card);
  font-size: 1.1rem;
  line-height: 1;
  cursor: pointer;
}

.stepper button:active {
  background: var(--bg);
}

.stepper input[type="number"] {
  width: 4rem;
  text-align: center;
  padding: 0.4rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 1rem;
}

.row-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.settings-line {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.settings-line input[type="number"] {
  width: 3.2rem;
  padding: 0.25rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  text-align: center;
}

.settings-line input[type="text"] {
  width: 5rem;
  padding: 0.25rem;
  border: 1px solid var(--border);
  border-radius: 6px;
}

button.link {
  background: none;
  border: none;
  color: var(--danger);
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.2rem 0;
}

.add-form {
  display: grid;
  gap: 0.6rem;
  grid-template-columns: 1fr 1fr;
}

.add-form label {
  display: flex;
  flex-direction: column;
  font-size: 0.8rem;
  color: var(--muted);
  gap: 0.25rem;
}

.add-form label.full {
  grid-column: 1 / -1;
}

.add-form input {
  padding: 0.5rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 1rem;
}

.primary-btn {
  background: var(--accent);
  color: var(--accent-contrast);
  border: none;
  border-radius: var(--radius);
  padding: 0.65rem 1rem;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  width: 100%;
  grid-column: 1 / -1;
}

.secondary-btn {
  background: transparent;
  color: var(--danger);
  border: 1px solid var(--danger);
  border-radius: var(--radius);
  padding: 0.55rem 0.9rem;
  font-weight: 700;
  font-size: 0.9rem;
  cursor: pointer;
}

.secondary-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.empty-state {
  text-align: center;
  color: var(--muted);
  padding: 2.5rem 1rem;
}

.toolbar {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 0.75rem;
}

.buy-input {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.buy-input input[type="number"] {
  width: 4.5rem;
  padding: 0.4rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  text-align: center;
  font-size: 1rem;
}

.buy-input input[type="number"]:disabled {
  background: var(--bg);
  color: var(--muted);
}

.checkbox-line {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
}

.checkbox-line input[type="checkbox"] {
  width: 1.3rem;
  height: 1.3rem;
}

.product-row.checked {
  opacity: 0.55;
}