:root {
  --color-bg: #202124;
  --color-text: #e8eaed;
  --color-muted: #9aa0a6;
  --color-primary: #5c9eff;
  --color-primary-dark: #3f7ee0;
  --color-alt-bg: #2b2c30;
  --color-input-bg: #2b2c30;
  --color-border: #3c3d42;
  --color-danger: #f2695c;
  --color-success: #4caf7d;
  --color-warning: #e2a640;
  --max-width: 800px;
}

:root[data-theme="light"] {
  --color-bg: #ffffff;
  --color-text: #1a1a1a;
  --color-muted: #5f6368;
  --color-primary: #2d6cdf;
  --color-primary-dark: #1e4fad;
  --color-alt-bg: #f5f7fa;
  --color-input-bg: #ffffff;
  --color-border: #e2e5e9;
  --color-danger: #d1453b;
  --color-success: #1f9254;
  --color-warning: #a35c00;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

a {
  color: var(--color-primary);
  text-decoration: none;
}

/* Header */
.site-header {
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  background: var(--color-bg);
  z-index: 10;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  padding-bottom: 1rem;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.logo {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-text);
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 1.5rem;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--color-text);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-primary);
}

.theme-toggle {
  background: none;
  border: none;
  font: inherit;
  font-weight: 500;
  color: var(--color-text);
  cursor: pointer;
  padding: 0;
}

.theme-toggle:hover {
  color: var(--color-primary);
}

.badge {
  background: var(--color-danger);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.1rem 0.45rem;
  border-radius: 999px;
  min-width: 1.2rem;
  text-align: center;
}

/* Page layout */
.page {
  padding: 2.5rem 0 3rem;
}

.page h1 {
  margin-top: 0;
  font-size: 1.75rem;
}

.muted {
  color: var(--color-muted);
}

/* Buttons */
.btn {
  display: inline-block;
  background: var(--color-primary);
  color: #fff;
  padding: 0.75rem 1.5rem;
  border-radius: 6px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  font-size: 1rem;
}

.btn:hover {
  background: var(--color-primary-dark);
}

.btn-small {
  padding: 0.4rem 0.9rem;
  font-size: 0.9rem;
}

.btn-block {
  display: block;
  width: 100%;
  text-align: center;
  padding: 1rem;
  font-size: 1.1rem;
  margin-top: 1rem;
}

.btn-outline {
  background: transparent;
  color: var(--color-danger);
  border: 1px solid var(--color-danger);
}

.btn-outline:hover {
  background: var(--color-danger);
  color: #fff;
}

.list-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}

.list-actions .scan-status {
  margin-top: 0;
  min-height: auto;
}

/* Order list */
.order-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1rem;
}

.order-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  background: var(--color-alt-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 1rem;
}

.order-item-done {
  opacity: 0.7;
}

.order-info {
  display: flex;
  flex-direction: column;
  min-width: 140px;
}

.order-name {
  font-weight: 600;
}

.order-barcode {
  font-size: 0.8rem;
  color: var(--color-muted);
}

.order-user {
  font-size: 0.75rem;
  color: var(--color-muted);
}

.order-controls {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.order-qty {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
}

.qty-btn {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 6px;
  border: 1px solid var(--color-border);
  background: var(--color-input-bg);
  color: var(--color-text);
  font-size: 1.3rem;
  cursor: pointer;
}

.qty-btn:hover {
  background: var(--color-alt-bg);
}

.order-actions {
  display: flex;
  gap: 0.5rem;
}

.tag {
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
}

.tag-done {
  background: rgba(76, 175, 125, 0.18);
  color: var(--color-success);
}

.tag-warning {
  background: rgba(226, 166, 64, 0.18);
  color: var(--color-warning);
}

details > summary {
  cursor: pointer;
  font-weight: 600;
  margin-top: 2rem;
}

#clear-history-btn {
  display: block;
  margin-top: 1rem;
}

/* Forms */
label {
  font-weight: 600;
  display: block;
  margin-top: 0.75rem;
}

input[type="text"],
input[type="number"],
input[type="password"],
select {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-family: inherit;
  font-size: 1rem;
  margin-top: 0.3rem;
  background: var(--color-input-bg);
  color: var(--color-text);
}

input:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 1px;
}

.product-form {
  display: flex;
  gap: 1rem;
  align-items: flex-end;
  flex-wrap: wrap;
  background: var(--color-alt-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 1rem;
  margin-top: 1rem;
}

.product-form .field {
  flex: 1;
  min-width: 160px;
}

.product-form label {
  margin-top: 0;
}

/* Search */
.search-row {
  margin-top: 1.5rem;
}

.search-row input {
  max-width: 320px;
}

.search-row-wide input {
  max-width: none;
}

/* Sort bar */
.sort-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1rem;
}

.sort-btn {
  background: var(--color-alt-bg);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  border-radius: 999px;
  padding: 0.3rem 0.8rem;
  font-size: 0.85rem;
  font-family: inherit;
  cursor: pointer;
}

.sort-btn:hover,
.sort-btn.active {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* Product list (card layout) */
.product-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1rem;
}

.product-item {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  background: var(--color-alt-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 1rem;
}

.product-name {
  font-weight: 600;
  font-size: 1.05rem;
}

.product-details {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.25rem;
  color: var(--color-muted);
  font-size: 0.85rem;
}

.product-actions {
  display: flex;
  gap: 0.5rem;
}

/* Product table */
table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1.5rem;
}

th, td {
  text-align: left;
  padding: 0.6rem 0.5rem;
  border-bottom: 1px solid var(--color-border);
}

th[data-sort] {
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
}

th[data-sort]:hover {
  color: var(--color-primary);
}

.row-actions {
  display: flex;
  gap: 0.5rem;
}

/* Scan page */
#reader {
  margin-top: 1rem;
  border-radius: 8px;
  overflow: hidden;
}

.photo-preview img,
.photo-preview canvas {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  border: 1px solid var(--color-border);
}

.scan-status {
  margin-top: 1rem;
  font-weight: 600;
  color: var(--color-success);
  min-height: 1.5rem;
}

.scan-status.error {
  color: var(--color-danger);
}

.scan-card {
  background: var(--color-alt-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 1.25rem;
  margin-top: 1rem;
}

.scan-barcode {
  color: var(--color-muted);
  font-size: 0.9rem;
  margin: 0 0 0.25rem;
}

.scan-product-name {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 0 0 0.5rem;
}

.scan-card .btn {
  margin-top: 1rem;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 1.5rem 0;
  text-align: center;
  color: var(--color-muted);
  font-size: 0.9rem;
}

@media (max-width: 600px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .order-item {
    flex-direction: column;
    align-items: flex-start;
  }
}