:root {
  --sidebar: #20242b;
  --sidebar-dark: #181c22;
  --sidebar-text: #d8dee9;
  --accent: #4f8cff;
  --accent-dark: #79a8ff;
  --nav-gold: #f0b23c;
  --bg: #11161d;
  --panel: #1a2029;
  --panel-soft: #202733;
  --border: #323b49;
  --text: #e6edf7;
  --muted: #9aa7b8;
  --field: #111821;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-family: "Microsoft YaHei", "Segoe UI", Arial, sans-serif;
  font-size: 14px;
}

input,
select,
textarea,
button {
  font-family: inherit;
}

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

a:hover {
  color: var(--accent-dark);
}

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 184px minmax(0, 1fr);
}

.sidebar {
  background: var(--sidebar);
  color: var(--sidebar-text);
  border-right: 1px solid #14171c;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  align-self: start;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.sidebar::-webkit-scrollbar {
  width: 0;
  height: 0;
}

.brand {
  height: 62px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 14px;
  color: var(--nav-gold);
  font-weight: 700;
  font-size: 18px;
  background: var(--sidebar-dark);
}

.brand:hover {
  color: var(--nav-gold);
}

.brand-mark {
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  background-color: rgba(240, 178, 60, 0.12);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='17' height='17' viewBox='0 0 24 24' fill='none' stroke='%23f0b23c' stroke-width='2.1' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='5' y='11' width='14' height='10' rx='2'/%3E%3Cpath d='M7 11V8a5 5 0 0 1 10 0v3'/%3E%3C/svg%3E");
  background-position: center;
  background-repeat: no-repeat;
  background-size: 17px 17px;
  border: 1px solid rgba(240, 178, 60, 0.55);
  color: var(--nav-gold);
}

.side-nav {
  padding: 12px 10px 24px;
}

.nav-group {
  margin-bottom: 16px;
}

.nav-title {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  color: var(--nav-gold);
  background: #3a424f;
  border-radius: 4px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
  text-align: left;
}

.nav-icon {
  position: relative;
  width: 15px;
  height: 15px;
  flex: 0 0 15px;
  color: var(--nav-gold);
}

.nav-title-license .nav-icon::before {
  content: "";
  position: absolute;
  inset: 1px 3px 1px 3px;
  border: 1.8px solid currentColor;
  border-radius: 2px;
}

.nav-title-license .nav-icon::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 7px;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: currentColor;
}

.nav-title-code .nav-icon::before {
  content: "";
  position: absolute;
  left: 1px;
  top: 6px;
  width: 9px;
  height: 5px;
  border: 1.8px solid currentColor;
  border-radius: 4px;
  transform: rotate(-35deg);
}

.nav-title-code .nav-icon::after {
  content: "";
  position: absolute;
  right: 1px;
  top: 3px;
  width: 6px;
  height: 6px;
  border: 1.8px solid currentColor;
  border-radius: 50%;
}

.nav-title-product .nav-icon::before {
  content: "";
  position: absolute;
  inset: 2px;
  border: 1.8px solid currentColor;
  border-radius: 3px;
}

.nav-title-product .nav-icon::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 2px;
  width: 1.8px;
  height: 11px;
  background: currentColor;
  box-shadow: -4px 4px 0 -0.6px currentColor, 4px 4px 0 -0.6px currentColor;
}

.nav-title-registrant .nav-icon::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 5px;
  height: 5px;
  border: 1.8px solid currentColor;
  border-radius: 50%;
}

.nav-title-registrant .nav-icon::after {
  content: "";
  position: absolute;
  left: 2px;
  bottom: 1px;
  width: 11px;
  height: 7px;
  border: 1.8px solid currentColor;
  border-radius: 7px 7px 2px 2px;
}

.nav-title-user .nav-icon::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 2px;
  width: 11px;
  height: 9px;
  border: 1.8px solid currentColor;
  border-radius: 2px;
}

.nav-title-user .nav-icon::after {
  content: "";
  position: absolute;
  left: 5px;
  bottom: 1px;
  width: 5px;
  height: 3px;
  border: 1.8px solid currentColor;
  border-top: 0;
}

.nav-title-finance .nav-icon::before {
  content: "";
  position: absolute;
  left: 2px;
  right: 2px;
  bottom: 2px;
  height: 9px;
  border: 1.8px solid currentColor;
  border-top: 0;
}

.nav-title-finance .nav-icon::after {
  content: "";
  position: absolute;
  left: 4px;
  bottom: 2px;
  width: 2px;
  height: 5px;
  background: currentColor;
  box-shadow: 4px -3px 0 0 currentColor, 8px -6px 0 0 currentColor;
}

.nav-title-settings .nav-icon::before {
  content: "";
  position: absolute;
  inset: 4px;
  border: 1.8px solid currentColor;
  border-radius: 50%;
  box-shadow:
    0 -5px 0 -1px currentColor,
    0 5px 0 -1px currentColor,
    -5px 0 0 -1px currentColor,
    5px 0 0 -1px currentColor;
}

.nav-title-settings .nav-icon::after {
  content: "";
  position: absolute;
  inset: 1px;
  border: 1.8px solid currentColor;
  border-radius: 50%;
  opacity: 0.55;
}

.nav-group a {
  display: block;
  margin-top: 4px;
  padding: 7px 10px;
  border-radius: 4px;
  background: #242a33;
  color: #d6deea;
  line-height: 1.2;
  border-left: 2px solid transparent;
  text-align: left;
}

.nav-group a:hover {
  background: #2f3743;
  border-left-color: var(--accent);
  color: #fff;
}

.workspace {
  min-width: 0;
}

.topbar {
  min-height: 62px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 22px;
  background: #161c24;
  border-bottom: 1px solid var(--border);
}

.product-name {
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
}

.product-subtitle {
  color: var(--muted);
  font-size: 12px;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 18px;
}

.topbar-actions span {
  color: var(--muted);
}

.content {
  padding: 24px 26px;
}

.page-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 20px;
}

.page-heading h1 {
  margin: 0;
  font-size: 26px;
  font-weight: 700;
}

.primary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  padding: 0 16px;
  border: 0;
  border-radius: 4px;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  white-space: nowrap;
}

.secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  padding: 0 16px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--panel-soft);
  color: var(--text);
  font-weight: 600;
  white-space: nowrap;
}

.secondary-button:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.button-row,
.form-actions,
.check-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.primary-button:hover {
  background: var(--accent-dark);
  color: #fff;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}

.stat-card,
.module-card,
.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
}

.stat-card {
  padding: 16px;
}

.stat-card span,
.stat-card small {
  display: block;
  color: var(--muted);
}

.stat-card strong {
  display: block;
  margin: 8px 0 4px;
  font-size: 28px;
}

.module-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.module-card {
  padding: 18px;
}

.module-card h2 {
  margin: 0 0 8px;
  font-size: 18px;
}

.module-card p {
  min-height: 42px;
  margin: 0 0 14px;
  color: var(--muted);
}

.panel {
  overflow: hidden;
}

.report-panel {
  margin-top: 14px;
}

.form-panel {
  max-width: 760px;
  padding: 18px;
}

.serial-panel {
  max-width: none;
}

.form-panel label {
  display: block;
  margin: 14px 0 6px;
  font-weight: 700;
}

.registrant-search {
  margin-bottom: 6px;
}

.form-panel .form-control,
.filter-panel .form-control {
  display: block;
  width: 100%;
  color: var(--text);
  background: var(--field);
  min-height: 38px;
  padding: 6px 10px;
  border-color: var(--border);
  border-radius: 4px;
  box-shadow: none;
}

.form-panel select.form-control option,
.form-panel select.form-control optgroup,
.filter-panel select.form-control option,
.filter-panel select.form-control optgroup {
  color: var(--text);
  background: var(--field);
}

.form-panel .form-control:focus,
.filter-panel .form-control:focus {
  color: var(--text);
  background: var(--field);
  border-color: #4b5a70;
  box-shadow: none;
}

.form-panel .form-control::placeholder,
.filter-panel .form-control::placeholder {
  color: #718096;
}

input[type="date"],
input[type="datetime-local"],
input[type="month"],
input[type="time"] {
  color-scheme: dark;
}

input[type="date"]::-webkit-calendar-picker-indicator,
input[type="datetime-local"]::-webkit-calendar-picker-indicator,
input[type="month"]::-webkit-calendar-picker-indicator,
input[type="time"]::-webkit-calendar-picker-indicator {
  cursor: pointer;
  opacity: 1 !important;
  filter: none !important;
  background-color: transparent !important;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23ffffff' stroke-width='2.25' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M8 2v4'/%3E%3Cpath d='M16 2v4'/%3E%3Crect x='3' y='4' width='18' height='18' rx='2'/%3E%3Cpath d='M3 10h18'/%3E%3C/svg%3E") !important;
  background-position: center !important;
  background-repeat: no-repeat !important;
  background-size: 16px 16px !important;
  color: transparent !important;
}

.form-panel input[type="number"]::-webkit-inner-spin-button,
.form-panel input[type="number"]::-webkit-outer-spin-button {
  filter: invert(1) brightness(1.7);
}

.form-panel select.form-control,
.filter-panel select.form-control {
  color-scheme: dark;
}

.form-panel input,
.form-panel textarea,
.form-panel select,
.filter-panel input,
.filter-panel select {
  color-scheme: dark;
}

.filter-panel {
  margin-bottom: 14px;
  padding: 14px 16px;
}

.filter-form {
  display: grid;
  grid-template-columns: 220px 180px minmax(220px, 1fr) auto;
  gap: 12px;
  align-items: end;
}

.license-filter-form {
  grid-template-columns: minmax(160px, 1fr) minmax(140px, 0.8fr) minmax(180px, 1fr) minmax(260px, 2fr) auto;
}

.activation-code-filter-form {
  grid-template-columns: minmax(180px, 1fr) minmax(160px, 0.8fr) minmax(180px, 1fr) minmax(260px, 2fr) auto;
}

.finance-filter-form {
  grid-template-columns: repeat(8, minmax(0, 1fr));
}

.filter-form > div,
.form-grid > div {
  min-width: 0;
}

.filter-form label {
  display: block;
  margin-bottom: 6px;
  font-weight: 700;
}

.filter-actions {
  display: flex;
  gap: 10px;
  flex-wrap: nowrap;
}

.finance-filter-form .filter-actions {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  grid-column: span 2;
}

.finance-filter-form .filter-actions .primary-button,
.finance-filter-form .filter-actions .secondary-button {
  width: 100%;
  min-width: 0;
  padding: 0 10px;
}

.finance-link-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  width: 100%;
  min-width: 0;
  padding: 0 10px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: transparent;
  color: #7aa8ff;
  font: inherit;
  font-weight: 600;
  white-space: nowrap;
  cursor: pointer;
}

.finance-link-button:hover {
  color: #a8c4ff;
  border-color: #4b5a70;
  background: transparent;
}

.finance-custom-form {
  display: none;
  max-width: none;
  margin-top: 14px;
}

.finance-custom-form.is-open {
  display: block;
}

.finance-custom-form form {
  padding: 0 16px 16px;
}

.finance-custom-grid {
  display: grid;
  grid-template-columns: minmax(220px, 1.2fr) minmax(140px, 0.8fr) minmax(260px, 1.5fr) 120px;
  gap: 12px;
  align-items: end;
}

.monospace-input {
  font-family: Consolas, "Courier New", monospace;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 14px;
}

.check-row {
  margin-top: 14px;
}

.check-row label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0;
}

.form-actions {
  margin-top: 18px;
}

.validation-summary,
.field-error {
  color: #b42318;
}

.field-hint {
  min-height: 18px;
  margin-top: 5px;
  color: var(--muted);
  font-size: 12px;
}

.notice {
  margin-bottom: 14px;
  padding: 10px 12px;
  border-radius: 4px;
  border: 1px solid;
}

.notice.success {
  color: #7ee2aa;
  background: #10261c;
  border-color: #236b47;
}

.notice.warning {
  color: #ffd08a;
  background: #2a1f11;
  border-color: #7a5422;
}

.empty-cell {
  color: var(--muted);
  text-align: center !important;
}

.inline-form {
  display: inline;
}

.danger-link {
  padding: 0;
  border: 0;
  background: transparent;
  color: #b42318;
  font: inherit;
  cursor: pointer;
}

.danger-link:hover {
  color: #7a271a;
  text-decoration: underline;
}

.plain-link {
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--accent);
  font: inherit;
  cursor: pointer;
}

.plain-link:hover {
  color: var(--accent-dark);
  text-decoration: underline;
}

.copy-inline-button {
  margin-left: 8px;
}

.disabled-link {
  padding: 0;
  border: 0;
  background: transparent;
  color: #98a2b3;
  font: inherit;
  cursor: not-allowed;
}

.action-separator {
  display: inline-block;
  margin: 0 6px;
  color: var(--border);
}

.panel a,
.data-table a {
  color: #7aa8ff;
}

.panel a:hover,
.data-table a:hover {
  color: #a8c4ff;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}

.detail-stats {
  margin-bottom: 18px;
}

.detail-panel {
  overflow: hidden;
}

.detail-list {
  display: grid;
  grid-template-columns: 132px minmax(0, 1fr);
  gap: 0;
  margin: 0;
}

.detail-list dt,
.detail-list dd {
  min-height: 42px;
  margin: 0;
  padding: 11px 14px;
  border-bottom: 1px solid var(--border);
}

.detail-list dt {
  color: var(--muted);
  background: var(--panel-soft);
  font-weight: 700;
}

.detail-list dd {
  overflow-wrap: anywhere;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
}

.panel-header h2 {
  margin: 0;
  font-size: 16px;
}

.panel-header span {
  color: var(--muted);
  font-size: 12px;
}

.table-wrap {
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 680px;
}

.data-table th,
.data-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: middle;
}

.data-table th {
  color: #c6d1df;
  background: var(--panel-soft);
  font-weight: 700;
}

.data-table td {
  color: var(--text);
}

.data-table code {
  color: #ff6aa2;
}

.pagination-bar {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  padding: 10px 14px;
  border-top: 1px solid var(--border);
  background: #171f2a;
  color: var(--muted);
  overflow-x: auto;
  white-space: nowrap;
}

.pagination-summary {
  margin-right: auto;
  color: var(--muted);
  font-size: 13px;
}

.pagination-controls,
.page-size-form,
.page-jump-form {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 0 0 auto;
  color: #aebbd0;
  font-size: 13px;
}

.pager-button {
  min-width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 10px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: #111923;
  color: #dbe7f5;
  font-size: 13px;
  line-height: 1;
}

.pager-button:hover {
  border-color: var(--accent);
  background: #1f2c3f;
  color: #fff;
}

.pager-button.active {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
  font-weight: 700;
}

.pager-button.disabled {
  color: #7f8ca0;
  opacity: 0.55;
  pointer-events: none;
}

.pager-ellipsis {
  color: #7f8ca0;
  padding: 0 2px;
}

.page-size-form select,
.page-jump-form input {
  height: 30px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--field);
  color: var(--text);
}

.page-size-form select {
  min-width: 92px;
  padding: 0 28px 0 10px;
}

.page-jump-form input {
  width: 52px;
  padding: 0 8px;
  text-align: center;
}

@media (max-width: 860px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    height: auto;
    overflow: visible;
  }

  .stats-grid,
  .module-grid {
    grid-template-columns: 1fr;
  }

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

  .detail-grid,
  .form-grid,
  .filter-form {
    grid-template-columns: 1fr;
  }

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