/* ============================================
   ChangePrice — shadcn/ui inspired redesign
   ============================================ */

/* ---------- Design Tokens ---------- */
:root {
  --background: #f8fafc;
  --foreground: #0f172a;
  --card: #ffffff;
  --card-foreground: #0f172a;
  --primary: #0f766e;
  --primary-hover: #115e59;
  --primary-foreground: #f0fdfa;
  --secondary: #f1f5f9;
  --secondary-foreground: #1e293b;
  --muted: #f1f5f9;
  --muted-foreground: #64748b;
  --accent: #f1f5f9;
  --accent-foreground: #1e293b;
  --destructive: #dc2626;
  --destructive-foreground: #fef2f2;
  --destructive-hover: #b91c1c;
  --border: #e2e8f0;
  --input: #e2e8f0;
  --ring: #14b8a6;
  --radius: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;

  /* Legacy compatibility aliases */
  --bg: var(--background);
  --panel: var(--card);
  --text: var(--foreground);
  --line: var(--border);
  --danger: var(--destructive);
  --sidebar: #0f172a;
}

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

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  background: var(--background);
  color: var(--foreground);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", "Noto Sans SC", sans-serif;
  font-size: 14px;
  line-height: 1.5;
}

/* ---------- Typography ---------- */
h1, h2, h3, h4, p {
  margin: 0;
}

h1 {
  font-size: 1.625rem;
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.25;
}

h2 {
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.3;
}

h3 {
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 0.5rem;
}

/* ---------- Utilities ---------- */
.hidden {
  display: none !important;
}

/* ---------- Toast ---------- */
.toast-host {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  width: min(380px, calc(100vw - 2rem));
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  padding: 0.875rem 1rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--card-foreground);
  box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  font-size: 0.875rem;
  line-height: 1.5;
  animation: toast-in 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.toast.error {
  border-color: var(--destructive);
  background: var(--destructive-foreground);
  color: var(--destructive);
}

.toast.leaving {
  animation: toast-out 0.2s ease forwards;
}

@keyframes toast-in {
  from {
    opacity: 0;
    transform: translateX(100%) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateX(0) scale(1);
  }
}

@keyframes toast-out {
  from {
    opacity: 1;
    transform: translateX(0);
  }
  to {
    opacity: 0;
    transform: translateX(100%);
  }
}

/* ---------- Interactive Elements ---------- */
button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  padding: 0.5rem 0.875rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  color: var(--foreground);
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.25rem;
  cursor: pointer;
  transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  white-space: nowrap;
  box-shadow: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  position: relative;
}

button:hover {
  background: var(--secondary);
  border-color: #cbd5e1;
}

button:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--background), 0 0 0 4px rgb(20 184 166 / 0.35);
}

button:active {
  transform: translateY(0.5px);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  box-shadow: none;
  transform: none;
}

/* Primary action buttons */
#refreshGold,
#reloadProducts,
#previewBatch,
#exportExcel,
#reloadAudit,
#createProduct,
#saveTemplate,
#createStore,
#createUser,
#applyManualGold,
#downloadBaseWorkbookTemplate,
#previewBaseWorkbook,
#uploadBaseWorkbook,
#previewCoupon,
#savePermissions,
#saveModulePermissions,
#saveGoldRounding,
#changeOwnPassword,
#createRule {
  background: var(--primary);
  color: var(--primary-foreground);
  border-color: var(--primary);
}

#refreshGold:hover,
#reloadProducts:hover,
#previewBatch:hover,
#exportExcel:hover,
#reloadAudit:hover,
#createProduct:hover,
#saveTemplate:hover,
#createStore:hover,
#createUser:hover,
#applyManualGold:hover,
#downloadBaseWorkbookTemplate:hover,
#previewBaseWorkbook:hover,
#uploadBaseWorkbook:hover,
#previewCoupon:hover,
#applyCoupon:hover,
#savePermissions:hover,
#saveModulePermissions:hover,
#saveGoldRounding:hover,
#changeOwnPassword:hover,
#createRule:hover {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
}

/* Danger actions */
.danger-action {
  border-color: #fecaca;
  color: var(--destructive);
  background: var(--card);
}

.danger-action:hover {
  background: var(--destructive-foreground);
  border-color: #fecaca;
}

.danger-action.confirm {
  background: var(--destructive);
  border-color: var(--destructive);
  color: var(--destructive-foreground);
}

.danger-action.confirm:hover {
  background: var(--destructive-hover);
  border-color: var(--destructive-hover);
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--input);
  border-radius: var(--radius);
  background: var(--card);
  padding: 0.5rem 0.75rem;
  color: var(--foreground);
  font-size: 0.875rem;
  line-height: 1.5;
  font-family: "JetBrains Mono", "Fira Code", "Cascadia Code", Consolas, "Courier New", monospace;
  transition: all 0.15s ease;
}

input:hover,
select:hover,
textarea:hover {
  border-color: #cbd5e1;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--ring);
  box-shadow: 0 0 0 3px rgb(20 184 166 / 0.18);
}

input:disabled,
select:disabled,
textarea:disabled {
  background: var(--muted);
  opacity: 0.7;
  cursor: not-allowed;
}

label {
  display: grid;
  gap: 0.375rem;
  color: #334155;
  font-size: 0.8125rem;
  font-weight: 500;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--primary-hover);
  text-decoration: underline;
}

/* ---------- Login ---------- */
.login-view {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1.5rem;
  background: radial-gradient(circle at 50% 0%, #f0fdfa 0%, var(--background) 60%);
}

.login-box {
  width: min(400px, 100%);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 2rem;
  display: grid;
  gap: 1rem;
  box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  animation: login-in 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes login-in {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.login-box h1 {
  font-size: 1.5rem;
  text-align: center;
}

.login-box p {
  color: var(--muted-foreground);
  text-align: center;
  font-size: 0.875rem;
  margin-bottom: 0.25rem;
}

.login-box button[type="submit"] {
  width: 100%;
  margin-top: 0.25rem;
  background: var(--primary);
  color: var(--primary-foreground);
  border-color: var(--primary);
  padding: 0.625rem;
  font-weight: 600;
}

.login-box button[type="submit"]:hover {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
}

/* ---------- App Layout ---------- */
.app-view {
  display: grid;
  grid-template-columns: 232px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  background: var(--sidebar);
  color: #f8fafc;
  padding: 1.125rem 0.875rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  scrollbar-width: thin;
  scrollbar-color: #334155 transparent;
}

.sidebar::-webkit-scrollbar {
  width: 6px;
}

.sidebar::-webkit-scrollbar-thumb {
  background: #334155;
  border-radius: 3px;
}

.brand {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.025em;
}

.user-badge {
  color: #94a3b8;
  font-size: 0.8125rem;
  line-height: 1.4;
}

.live-gold {
  border: 1px solid #1e293b;
  border-radius: var(--radius-lg);
  background: #1e293b;
  padding: 0.875rem;
  display: grid;
  gap: 0.25rem;
  transition: border-color 0.2s ease;
}

.live-gold:hover {
  border-color: #334155;
}

.live-gold span {
  color: #94a3b8;
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.live-gold strong {
  color: #f8fafc;
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.applied-gold strong {
  color: #fbbf24;
}

.live-gold small {
  color: #cbd5e1;
  font-size: 0.6875rem;
  line-height: 1.3;
}

nav {
  display: grid;
  gap: 0.375rem;
  margin-top: 0.5rem;
}

nav button,
.logout,
.side-download {
  background: transparent;
  border: 1px solid transparent;
  color: #cbd5e1;
  justify-content: flex-start;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 500;
  box-shadow: none;
  transition: all 0.15s ease;
  position: relative;
}

nav button svg,
.side-download svg {
  pointer-events: none;
  flex-shrink: 0;
}

.logout {
  justify-content: center;
}

nav button::before,
.logout::before,
.side-download::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%) scaleY(0);
  width: 3px;
  height: 1.25rem;
  background: var(--ring);
  border-radius: 0 2px 2px 0;
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

nav button:hover,
.logout:hover,
.side-download:hover {
  background: #1e293b;
  border-color: #334155;
  color: #f8fafc;
}

nav button.active,
nav button.active:hover {
  background: #1e293b;
  border-color: #334155;
  color: #f8fafc;
}

nav button.active::before {
  transform: translateY(-50%) scaleY(1);
}

.side-download {
  margin-top: 0.5rem;
  font-size: 0.8125rem;
}

.logout {
  margin-top: auto;
}

/* ---------- Main Content ---------- */
.main {
  min-width: 0;
  padding: 1.75rem;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

.topbar p {
  color: var(--muted-foreground);
  margin-top: 0.375rem;
  font-size: 0.875rem;
}

.toolbar {
  display: grid;
  grid-template-columns: minmax(260px, 1fr) auto;
  gap: 0.625rem;
  min-width: 420px;
  align-items: start;
}

/* ---------- Views ---------- */
.view {
  display: none;
}

.view.active {
  display: grid;
  gap: 1.25rem;
  animation: view-in 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes view-in {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- Cards & Panels ---------- */
.panel,
.metrics article,
.rule-list article,
.split > div {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.panel:hover,
.metrics article:hover,
.rule-list article:hover {
  box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.05), 0 2px 4px -2px rgb(0 0 0 / 0.05);
}

.danger-panel {
  border-color: #fecaca;
  background: linear-gradient(to bottom right, #fef2f2, var(--card));
}

.danger-panel summary {
  color: var(--destructive);
}

.account-panel {
  max-width: 640px;
}

.panel-body-title {
  margin-top: 1rem;
}

summary {
  cursor: pointer;
  font-weight: 600;
  user-select: none;
  padding: 0.25rem 0;
  transition: color 0.15s ease;
}

summary:hover {
  color: var(--primary);
}

/* ---------- Metrics ---------- */
.metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.metrics article {
  padding: 1.25rem;
  display: grid;
  gap: 0.5rem;
}

.metrics span {
  display: block;
  color: var(--muted-foreground);
  font-size: 0.8125rem;
  font-weight: 500;
}

.metrics strong {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--foreground);
}

/* ---------- Dashboard Guide ---------- */
.dashboard-guide {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
}

.dashboard-guide section {
  min-width: 0;
}

.dashboard-guide h3 {
  margin-bottom: 0.75rem;
  color: var(--foreground);
}

.dashboard-guide ol,
.dashboard-guide ul {
  margin: 0;
  padding-left: 1.25rem;
  color: #475569;
  line-height: 1.7;
  font-size: 0.8125rem;
}

.dashboard-guide li + li {
  margin-top: 0.375rem;
}

/* ---------- Section Title ---------- */
.section-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.section-title.compact {
  margin-bottom: 0.75rem;
}

.inline-actions {
  display: flex;
  gap: 0.625rem;
  align-items: center;
}

/* ---------- Forms ---------- */
.filters,
.form-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
}

.form-grid.wide {
  grid-template-columns: repeat(6, minmax(0, 1fr));
  margin-top: 1rem;
}

/* ---------- Pager ---------- */
.pager {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.625rem;
  color: var(--muted-foreground);
  font-size: 0.8125rem;
}

.pager span {
  margin-right: auto;
}

.pager label {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  white-space: nowrap;
}

.pager select {
  width: 4.5rem;
  padding: 0.375rem 0.5rem;
}

.pager button {
  padding: 0.375rem 0.625rem;
}

/* ---------- Tables ---------- */
.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  font-size: 0.875rem;
}

th,
td {
  padding: 0.75rem;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: middle;
  white-space: nowrap;
  transition: background-color 0.15s ease;
}

th {
  background: #f8fafc;
  color: #475569;
  font-weight: 600;
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

tbody tr {
  transition: background-color 0.15s ease;
}

tbody tr:hover {
  background: #f8fafc;
}

tbody tr:last-child td {
  border-bottom: 0;
}

td input {
  width: 92px;
  padding: 0.375rem 0.5rem;
  font-size: 0.8125rem;
}

td select {
  min-width: 88px;
  padding: 0.375rem 0.5rem;
  font-size: 0.8125rem;
}

/* ---------- Product Table ---------- */
.product-table {
  min-width: 1230px;
  font-size: 0.8125rem;
}

.product-table th,
.product-table td {
  padding: 0.5rem 0.5rem;
}

.product-table input,
.product-table select {
  height: 2rem;
  padding: 0.25rem 0.5rem;
  border-radius: calc(var(--radius) - 2px);
}

.product-table td:nth-child(3) select {
  width: 116px;
  min-width: 116px;
}

.product-table td:nth-child(4) input {
  width: 150px;
}

.product-table td:nth-child(5) input,
.product-table td:nth-child(6) input {
  width: 100px;
}

.product-table td:nth-child(7) input,
.product-table td:nth-child(8) input,
.product-table td:nth-child(9) input,
.product-table td:nth-child(10) input {
  width: 68px;
}

.product-table td:nth-child(11) select {
  width: 72px;
  min-width: 72px;
}

.product-table td:nth-child(12) {
  min-width: 78px;
}

.product-table td:nth-child(13) {
  min-width: 140px;
  max-width: 170px;
}

.product-table .muted-cell {
  display: inline-block;
  max-width: 112px;
  overflow: hidden;
  text-overflow: ellipsis;
  vertical-align: bottom;
}

.product-table .table-action {
  padding: 0.375rem 0.625rem;
  font-size: 0.75rem;
}

.status-select {
  transition: all 0.15s ease;
}

.status-select.enabled {
  color: var(--primary);
  border-color: #99f6e4;
  background: #f0fdfa;
}

.status-select.disabled {
  color: #991b1b;
  border-color: #fecaca;
  background: #fef2f2;
}

.price-value {
  font-weight: 700;
  color: var(--foreground);
  font-size: 0.875rem;
}

.muted-cell {
  color: var(--muted-foreground);
  font-size: 0.75rem;
}

.readonly-cell {
  color: #475569;
  display: inline-block;
  max-width: 116px;
  overflow: hidden;
  text-overflow: ellipsis;
  vertical-align: bottom;
  font-size: 0.8125rem;
}

.table-action {
  padding: 0.375rem 0.625rem;
  font-size: 0.8125rem;
}

.row-actions {
  display: flex;
  gap: 0.375rem;
}

.invalid-row td {
  background: #fef2f2;
  color: #991b1b;
}

.invalid-row:hover td {
  background: #fee2e2;
}

/* ---------- Audit Table ---------- */
.audit-table {
  table-layout: fixed;
}

.audit-table th:nth-child(1),
.audit-table td:nth-child(1) {
  width: 150px;
}

.audit-table th:nth-child(2),
.audit-table td:nth-child(2) {
  width: 120px;
}

.audit-table th:nth-child(3),
.audit-table td:nth-child(3) {
  width: 150px;
}

.audit-table td {
  white-space: normal;
  vertical-align: top;
}

.audit-detail {
  margin: 0;
  max-height: 180px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
  font-family: "JetBrains Mono", "Fira Code", "Cascadia Code", Consolas, "Courier New", monospace;
  font-size: 0.75rem;
  line-height: 1.5;
  color: #475569;
  background: #f8fafc;
  padding: 0.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

/* ---------- Rule List ---------- */
.rule-list {
  display: grid;
  gap: 0.75rem;
}

.rule-list article {
  padding: 1rem;
}

.rule-list article h3 {
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.rule-list pre {
  white-space: pre-wrap;
  word-break: break-word;
  background: #f8fafc;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.875rem;
  max-height: 360px;
  overflow: auto;
  font-size: 0.8125rem;
  line-height: 1.6;
  font-family: "JetBrains Mono", "Fira Code", "Cascadia Code", Consolas, monospace;
  color: #334155;
}

/* ---------- Messages ---------- */
.message {
  min-height: 1.5rem;
  color: var(--muted-foreground);
  font-size: 0.875rem;
  line-height: 1.5;
}

.message.ok {
  color: var(--primary);
  font-weight: 500;
}

.message.error {
  color: var(--destructive);
  font-weight: 500;
}

/* ---------- Import Preview ---------- */
.import-preview {
  margin-top: 0.75rem;
}

.import-duplicates-table {
  min-width: 980px;
  font-size: 0.8125rem;
}

.import-duplicates-table th,
.import-duplicates-table td {
  padding: 0.5rem;
}

.import-duplicates-table td:nth-child(6),
.import-duplicates-table td:nth-child(8) {
  max-width: 180px;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ---------- Danger utility ---------- */
.danger {
  border-color: #fecaca;
  color: var(--destructive);
  justify-self: start;
}

/* ---------- Split layout ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr minmax(300px, 420px);
  gap: 1.25rem;
  align-items: start;
}

.permission-row {
  display: grid;
  grid-template-columns: 1fr 130px;
  gap: 0.625rem;
  align-items: center;
  margin-bottom: 0.625rem;
}

.permission-title {
  margin-top: 1.25rem;
}

.module-permission-grid {
  display: grid;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.module-permission-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: #475569;
  font-size: 0.8125rem;
  padding: 0.375rem 0.5rem;
  border-radius: var(--radius);
  transition: background-color 0.15s ease;
}

.module-permission-row:hover {
  background: var(--secondary);
}

.module-permission-row input {
  width: auto;
  accent-color: var(--primary);
}

/* ---------- Responsive ---------- */
@media (max-width: 1020px) {
  .app-view {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    height: auto;
    flex-direction: row;
    flex-wrap: wrap;
    padding: 1rem;
  }

  .sidebar .brand,
  .sidebar .user-badge,
  .sidebar .live-gold,
  .sidebar nav,
  .sidebar .side-download,
  .sidebar .logout {
    width: auto;
  }

  nav {
    display: flex;
    flex-wrap: wrap;
    width: 100%;
  }

  .toolbar,
  .filters,
  .pager,
  .form-grid,
  .form-grid.wide,
  .dashboard-guide,
  .metrics,
  .split {
    grid-template-columns: 1fr;
    min-width: 0;
  }

  .pager {
    justify-content: flex-start;
    flex-wrap: wrap;
  }

  .pager span {
    margin-right: 0;
    width: 100%;
  }

  .topbar {
    align-items: stretch;
    flex-direction: column;
  }

  .main {
    padding: 1rem;
  }
}