/*
 * Gicater Admin — SaaS dashboard（Linear / Vercel 灵感）
 * Bootstrap 5.3 + CSS variables；Modal 勿在 .admin-content 上建高层叠上下文
 */
@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@400;500;600;700&display=swap");

:root {
  --admin-font: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --admin-bg: #f7f7f8;
  --admin-surface: #ffffff;
  --admin-border: #e8e8ec;
  --admin-border-strong: #d4d4d8;
  --admin-text: #18181b;
  --admin-muted: #71717a;
  --admin-primary: #18181b;
  --admin-primary-hover: #27272a;
  --admin-primary-soft: rgba(24, 24, 27, 0.06);
  --admin-accent: #2563eb;
  --admin-accent-soft: rgba(37, 99, 235, 0.08);
  --admin-radius: 8px;
  --admin-radius-lg: 12px;
  --admin-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
  --admin-shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06);
  --admin-sidebar-w: 240px;
  --admin-topbar-h: 56px;
  --bs-primary: var(--admin-primary);
  --bs-primary-rgb: 24, 24, 27;
  --bs-border-color: var(--admin-border);
  --bs-body-font-family: var(--admin-font);
  --bs-body-font-size: 0.875rem;
  --bs-body-color: var(--admin-text);
  --bs-body-bg: var(--admin-bg);
}

/* —— Shell —— */
body.admin-app {
  min-height: 100vh;
  font-family: var(--admin-font);
  font-size: 0.875rem;
  color: var(--admin-text);
  background: var(--admin-bg);
  -webkit-font-smoothing: antialiased;
}

body.sidebar-scroll-lock {
  overflow: hidden;
}

.admin-shell {
  display: flex;
  min-height: 100vh;
}

.admin-sidebar {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1040;
  width: var(--admin-sidebar-w);
  height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--admin-surface);
  border-right: 1px solid var(--admin-border);
  transition: transform 0.22s ease;
}

.admin-sidebar-brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  height: var(--admin-topbar-h);
  padding: 0 1rem;
  border-bottom: 1px solid var(--admin-border);
  text-decoration: none;
  color: var(--admin-text);
  font-weight: 700;
  font-size: 0.9375rem;
  letter-spacing: -0.02em;
}

.admin-sidebar-brand:hover {
  color: var(--admin-text);
}

.admin-brand-mark {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: var(--admin-primary);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.admin-sidebar-nav {
  flex: 1;
  padding: 0.75rem 0.5rem;
  overflow-y: auto;
}

.admin-nav-section {
  font-size: 0.625rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--admin-muted);
  padding: 0.5rem 0.75rem 0.35rem;
  margin: 0;
}

.admin-nav-link {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.5rem 0.75rem;
  margin-bottom: 2px;
  border-radius: 6px;
  color: var(--admin-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.8125rem;
  transition: background 0.15s ease, color 0.15s ease;
}

.admin-nav-link svg {
  flex-shrink: 0;
  opacity: 0.7;
}

.admin-nav-link:hover {
  background: var(--admin-primary-soft);
  color: var(--admin-text);
}

.admin-nav-link.is-active {
  background: var(--admin-primary-soft);
  color: var(--admin-text);
  font-weight: 600;
}

.admin-nav-link.is-active svg {
  opacity: 1;
}

.admin-sidebar-footer {
  padding: 0.75rem 1rem;
  border-top: 1px solid var(--admin-border);
  font-size: 0.75rem;
  color: var(--admin-muted);
}

.admin-main-wrap {
  flex: 1;
  margin-left: var(--admin-sidebar-w);
  min-width: 0;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.admin-topbar {
  position: sticky;
  top: 0;
  z-index: 1030;
  height: var(--admin-topbar-h);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0 1.25rem;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--admin-border);
}

.admin-topbar-title {
  font-size: 0.9375rem;
  font-weight: 600;
  margin: 0;
  color: var(--admin-text);
  letter-spacing: -0.01em;
}

.admin-topbar-user {
  font-size: 0.8125rem;
  color: var(--admin-muted);
  max-width: 12rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.admin-content {
  flex: 1;
  padding: 1.25rem 1.25rem 2.5rem;
  max-width: 1400px;
  width: 100%;
}

.admin-sidebar-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1035;
  background: rgba(0, 0, 0, 0.35);
}

@media (max-width: 991.98px) {
  .admin-sidebar {
    transform: translateX(-100%);
  }

  .admin-shell.sidebar-open .admin-sidebar {
    transform: translateX(0);
  }

  .admin-shell.sidebar-open .admin-sidebar-backdrop {
    display: block;
  }

  .admin-main-wrap {
    margin-left: 0;
  }
}

/* —— Buttons —— */
.btn-primary {
  --bs-btn-bg: var(--admin-primary);
  --bs-btn-border-color: var(--admin-primary);
  --bs-btn-hover-bg: var(--admin-primary-hover);
  --bs-btn-hover-border-color: var(--admin-primary-hover);
  --bs-btn-active-bg: var(--admin-primary-hover);
  --bs-btn-active-border-color: var(--admin-primary-hover);
  font-weight: 500;
}

.btn-outline-secondary {
  --bs-btn-color: var(--admin-text);
  --bs-btn-border-color: var(--admin-border-strong);
  --bs-btn-hover-bg: var(--admin-primary-soft);
  --bs-btn-hover-border-color: var(--admin-border-strong);
  --bs-btn-hover-color: var(--admin-text);
}

/* —— Page head —— */
.admin-page-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.admin-page-title {
  font-size: 1.375rem;
  font-weight: 600;
  margin: 0 0 0.2rem;
  color: var(--admin-text);
  letter-spacing: -0.03em;
}

.admin-page-desc {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--admin-muted);
  max-width: 40rem;
}

.admin-page-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

/* —— Filter bar —— */
.admin-filter-bar {
  background: var(--admin-surface);
  border: 1px solid var(--admin-border);
  border-radius: var(--admin-radius-lg);
  box-shadow: var(--admin-shadow);
  padding: 1rem 1.125rem;
  margin-bottom: 1rem;
}

.admin-filter-bar .form-label {
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--admin-muted);
  margin-bottom: 0.3rem;
}

.admin-filter-bar .form-select,
.admin-filter-bar .form-control {
  font-size: 0.8125rem;
  border-color: var(--admin-border);
  border-radius: 6px;
}

.admin-filter-bar .form-select:focus,
.admin-filter-bar .form-control:focus {
  border-color: var(--admin-border-strong);
  box-shadow: 0 0 0 3px var(--admin-primary-soft);
}

.admin-filter-actions {
  display: flex;
  align-items: flex-end;
  gap: 0.5rem;
  height: 100%;
  min-height: 3.25rem;
}

/* —— Table card —— */
.admin-table-card {
  background: var(--admin-surface);
  border: 1px solid var(--admin-border);
  border-radius: var(--admin-radius-lg);
  box-shadow: var(--admin-shadow);
  overflow: hidden;
}

.admin-table {
  margin: 0;
  font-size: 0.8125rem;
}

.admin-table thead th {
  font-weight: 600;
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--admin-muted);
  background: #fafafa;
  border-bottom: 1px solid var(--admin-border);
  white-space: nowrap;
  padding-top: 0.65rem;
  padding-bottom: 0.65rem;
}

.admin-table tbody td {
  vertical-align: middle;
  border-color: var(--admin-border);
  color: var(--admin-text);
  padding-top: 0.6rem;
  padding-bottom: 0.6rem;
}

.admin-table tbody tr {
  transition: background 0.12s ease;
}

.admin-table tbody tr:hover {
  background: #fafafa;
}

.admin-table .col-id {
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  color: var(--admin-muted);
  width: 4rem;
}

.admin-table-footer {
  padding: 0.7rem 1.125rem;
  background: #fafafa;
  border-top: 1px solid var(--admin-border);
  font-size: 0.8125rem;
  color: var(--admin-muted);
}

/* —— Empty & skeleton —— */
.admin-empty-state {
  text-align: center;
  padding: 3rem 1.5rem;
}

.admin-empty-title {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--admin-text);
}

.admin-empty-hint {
  font-size: 0.8125rem;
  color: var(--admin-muted);
}

.admin-skeleton-row .placeholder {
  border-radius: 4px;
  min-height: 0.75rem;
}

.admin-skeleton-row td {
  padding-top: 0.85rem;
  padding-bottom: 0.85rem;
}

/* —— Forms / fieldset —— */
.admin-surface {
  background: var(--admin-surface);
  border: 1px solid var(--admin-border);
  border-radius: var(--admin-radius-lg);
  box-shadow: var(--admin-shadow);
}

.admin-edit-card {
  background: var(--admin-surface);
  border: 1px solid var(--admin-border);
  border-radius: var(--admin-radius-lg);
  box-shadow: var(--admin-shadow);
  padding: 1.5rem;
}

.admin-form .form-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--admin-muted);
  margin-bottom: 0.25rem;
}

.admin-form .form-control,
.admin-form .form-select {
  font-size: 0.8125rem;
  border-color: var(--admin-border);
  border-radius: 6px;
}

.admin-fieldset {
  border: 1px solid var(--admin-border);
  border-radius: var(--admin-radius);
  padding: 0.875rem 1rem 1rem;
  margin-top: 1rem;
  background: #fafafa;
}

.admin-fieldset legend {
  float: none;
  width: auto;
  padding: 0 0.35rem;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--admin-muted);
}

.admin-form-text {
  font-size: 0.75rem;
  color: var(--admin-muted);
}

/* —— Modals —— */
.modal-content {
  border-radius: var(--admin-radius-lg);
  border: 1px solid var(--admin-border);
  box-shadow: var(--admin-shadow-md);
}

.modal-header {
  border-bottom-color: var(--admin-border);
  padding: 1rem 1.25rem;
}

.modal-header .modal-title {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.modal-body {
  padding: 1rem 1.25rem;
}

.modal-footer {
  border-top-color: var(--admin-border);
  background: #fafafa;
  padding: 0.75rem 1.25rem;
}

#modalNew .modal-dialog {
  max-height: calc(100vh - 2rem);
}

#modalNew .modal-content {
  max-height: calc(100vh - 2rem);
  display: flex;
  flex-direction: column;
}

#modalNew .modal-body {
  overflow-y: auto;
  flex: 1 1 auto;
}

#modalNew .modal-footer {
  flex-shrink: 0;
}

.btn-close {
  filter: none;
}

.badge.text-bg-light.border {
  font-weight: 500;
  color: var(--admin-muted);
  background: #f4f4f5 !important;
}

/* —— Login —— */
body.login-page {
  background: var(--admin-bg);
}

.login-layout {
  display: flex;
  min-height: 100vh;
}

.login-aside {
  display: none;
  flex: 1;
  padding: 3rem;
  background: var(--admin-primary);
  color: #fafafa;
  flex-direction: column;
  justify-content: space-between;
}

.login-aside-title {
  font-size: 1.75rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  margin: 0 0 0.75rem;
}

.login-aside-desc {
  font-size: 0.9375rem;
  opacity: 0.85;
  max-width: 22rem;
  line-height: 1.55;
}

.login-main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1.25rem;
}

.login-shell {
  width: 100%;
  max-width: 400px;
}

.login-brand-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0 0 0.25rem;
  color: var(--admin-text);
  letter-spacing: -0.02em;
}

@media (min-width: 992px) {
  .login-aside {
    display: flex;
  }
}