/* 乐高进销存 · 演示样式
   Palette: ink / brick / stud / paper / slate
   Type: Outfit + IBM Plex Sans */

:root {
  --ink: #15202b;
  --ink-soft: #243447;
  --brick: #c43c28;
  --brick-deep: #9e2f1f;
  --stud: #f0b429;
  --paper: #f4f1eb;
  --paper-card: #fffcf7;
  --slate: #5c6b7a;
  --line: #d9d2c5;
  --ok: #2f7d4a;
  --warn: #b86e00;
  --info: #2a6f97;
  --danger: #c43c28;
  --sidebar-w: 240px;
  --radius: 10px;
  --font-display: "Outfit", system-ui, sans-serif;
  --font-body: "IBM Plex Sans", system-ui, sans-serif;
  --shadow: 0 1px 0 rgba(21, 32, 43, 0.06);
}

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

html {
  font-size: 15px;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.5;
}

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

a {
  color: var(--info);
}

h1,
h2,
h3,
.brand-name {
  font-family: var(--font-display);
  font-weight: 650;
  letter-spacing: -0.02em;
  margin: 0;
}

/* —— Login —— */
.view-login {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(circle at 12% 18%, rgba(196, 60, 40, 0.12), transparent 42%),
    radial-gradient(circle at 88% 78%, rgba(240, 180, 41, 0.14), transparent 40%),
    var(--paper);
}

.login-card {
  width: min(400px, 100%);
  background: var(--paper-card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 36px 32px 28px;
  box-shadow: var(--shadow);
}

.stud-row {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
}

.stud {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--brick);
  box-shadow: inset 0 -2px 0 rgba(0, 0, 0, 0.15);
}

.stud:nth-child(2) {
  background: var(--stud);
}

.stud:nth-child(3) {
  background: var(--info);
}

.stud:nth-child(4) {
  background: var(--ok);
}

.login-card h1 {
  font-size: 1.65rem;
  margin-bottom: 6px;
}

.login-card .sub {
  color: var(--slate);
  margin-bottom: 28px;
  font-size: 0.92rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}

.field label {
  font-size: 0.8rem;
  font-weight: 560;
  color: var(--slate);
}

.field input,
.field select,
.field textarea,
.input,
.select {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  background: #fff;
  outline: none;
  transition: border-color 0.15s;
}

.field input:focus,
.field select:focus,
.field textarea:focus,
.input:focus,
.select:focus {
  border-color: var(--ink-soft);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: none;
  border-radius: 8px;
  padding: 10px 16px;
  cursor: pointer;
  font-weight: 560;
  transition: background 0.15s, transform 0.1s;
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  background: var(--brick);
  color: #fff;
}

.btn-primary:hover {
  background: var(--brick-deep);
}

.btn-secondary {
  background: var(--ink);
  color: #fff;
}

.btn-ghost {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--ink);
}

.btn-ghost:hover {
  background: rgba(21, 32, 43, 0.04);
}

.btn-ok {
  background: var(--ok);
  color: #fff;
}

.btn-warn {
  background: var(--stud);
  color: var(--ink);
}

.btn-block {
  width: 100%;
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.hint {
  margin-top: 16px;
  font-size: 0.8rem;
  color: var(--slate);
  text-align: center;
}

/* —— App shell —— */
.app {
  display: none;
  min-height: 100vh;
}

.app.is-on {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
}

.sidebar {
  background: var(--ink);
  color: #e8eef4;
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: auto;
}

.brand {
  padding: 22px 18px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.brand-mark {
  display: flex;
  gap: 5px;
  margin-bottom: 12px;
}

.brand-mark span {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--brick);
}

.brand-mark span:nth-child(2) {
  background: var(--stud);
}

.brand-mark span:nth-child(3) {
  background: #3d8bfd;
}

.brand-name {
  font-size: 1.15rem;
  color: #fff;
}

.brand-tag {
  font-size: 0.75rem;
  color: rgba(232, 238, 244, 0.55);
  margin-top: 2px;
}

.nav {
  padding: 12px 10px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
}

.nav-group {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(232, 238, 244, 0.4);
  padding: 14px 12px 6px;
}

.nav-btn {
  appearance: none;
  border: none;
  background: transparent;
  color: rgba(232, 238, 244, 0.78);
  text-align: left;
  padding: 10px 12px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.92rem;
  text-decoration: none;
  display: block;
}

.nav-btn:hover {
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
}

.nav-btn.is-active {
  background: rgba(196, 60, 40, 0.28);
  color: #fff;
}

.sidebar-foot {
  padding: 14px 16px 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.8rem;
  color: rgba(232, 238, 244, 0.5);
}

.main {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 100vh;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 22px;
  background: var(--paper-card);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 20;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #fff;
  cursor: pointer;
}

.page-title {
  font-size: 1.15rem;
}

.topbar-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 600;
  background: rgba(21, 32, 43, 0.08);
  color: var(--ink);
}

.badge-draft {
  background: rgba(240, 180, 41, 0.28);
  color: #7a5200;
}

.badge-posted {
  background: rgba(47, 125, 74, 0.18);
  color: var(--ok);
}

.badge-warn {
  background: rgba(196, 60, 40, 0.12);
  color: var(--brick);
}

.content {
  padding: 20px 22px 40px;
  flex: 1;
}

.panel {
  display: none;
}

.panel.is-active {
  display: block;
  animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .panel.is-active {
    animation: none;
  }
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}

.stat {
  background: var(--paper-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
}

.stat-label {
  font-size: 0.78rem;
  color: var(--slate);
}

.stat-value {
  font-family: var(--font-display);
  font-size: 1.55rem;
  margin-top: 4px;
}

.stat-note {
  font-size: 0.75rem;
  color: var(--slate);
  margin-top: 4px;
}

.card {
  background: var(--paper-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 16px;
  box-shadow: var(--shadow);
}

.card-hd {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  flex-wrap: wrap;
}

.card-hd h2 {
  font-size: 1rem;
}

.card-bd {
  padding: 16px;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-bottom: 14px;
}

.toolbar .spacer {
  flex: 1;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

table.data {
  width: 100%;
  border-collapse: collapse;
  min-width: 640px;
  font-size: 0.88rem;
}

table.data th,
table.data td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

table.data th {
  background: #f0ebe3;
  font-size: 0.75rem;
  font-weight: 650;
  color: var(--slate);
}

table.data tr:last-child td {
  border-bottom: none;
}

table.data tbody tr:hover {
  background: rgba(196, 60, 40, 0.04);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.form-grid .span-2 {
  grid-column: span 2;
}

.form-grid .span-3 {
  grid-column: span 3;
}

.lines-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 8px 0 10px;
}

.lines-head h3 {
  font-size: 0.95rem;
}

.line-actions {
  display: flex;
  gap: 6px;
}

.status-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  padding: 12px 14px;
  background: #f0ebe3;
  border-radius: 8px;
  margin-bottom: 14px;
  font-size: 0.88rem;
}

.callout {
  padding: 12px 14px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #fff;
  font-size: 0.88rem;
  color: var(--slate);
  margin-bottom: 14px;
}

.callout strong {
  color: var(--ink);
}

.callout-warn {
  border-color: rgba(196, 60, 40, 0.35);
  background: rgba(196, 60, 40, 0.06);
}

.callout-ok {
  border-color: rgba(47, 125, 74, 0.35);
  background: rgba(47, 125, 74, 0.08);
}

.toast {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 100;
  max-width: min(360px, calc(100vw - 32px));
  background: var(--ink);
  color: #fff;
  padding: 12px 16px;
  border-radius: 10px;
  font-size: 0.88rem;
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 0.2s, transform 0.2s;
}

.toast.is-show {
  opacity: 1;
  transform: none;
}

.toast.is-error {
  background: var(--brick-deep);
}

.toast.is-ok {
  background: var(--ok);
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(21, 32, 43, 0.45);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 80;
}

.modal-backdrop.is-open {
  display: flex;
}

.modal {
  width: min(720px, 100%);
  max-height: 90vh;
  overflow: auto;
  background: var(--paper-card);
  border-radius: 12px;
  border: 1px solid var(--line);
}

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

.modal-bd {
  padding: 20px;
}

.print-sheet {
  background: #fff;
  border: 1px solid var(--line);
  padding: 24px;
}

.print-sheet h2 {
  text-align: center;
  margin-bottom: 4px;
}

.print-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  font-size: 0.85rem;
  margin: 16px 0;
}

.sidebar-backdrop {
  display: none;
}

.split-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.pill {
  font-size: 0.75rem;
  padding: 4px 8px;
  border-radius: 6px;
  background: #eee8dc;
  color: var(--ink-soft);
}

/* —— Mobile —— */
@media (max-width: 960px) {
  .app.is-on {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: min(280px, 86vw);
    z-index: 60;
    transform: translateX(-105%);
    transition: transform 0.2s ease;
  }

  .sidebar.is-open {
    transform: none;
  }

  .sidebar-backdrop.is-on {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(21, 32, 43, 0.4);
    z-index: 50;
  }

  .menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .form-grid .span-2,
  .form-grid .span-3 {
    grid-column: span 1;
  }

  .split-2 {
    grid-template-columns: 1fr;
  }

  .content {
    padding: 14px 14px 32px;
  }

  .topbar {
    padding: 12px 14px;
  }
}

@media print {
  .sidebar,
  .topbar,
  .toolbar,
  .menu-toggle,
  .toast,
  .btn {
    display: none !important;
  }

  .app.is-on {
    display: block;
  }

  .content {
    padding: 0;
  }
}

.is-hidden {
  display: none !important;
}

.actions-cell {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.btn-sm {
  padding: 6px 10px;
  font-size: 0.8rem;
}