/* ===== 基础变量 ===== */
:root {
  --navy: #0b2a5b;
  --navy-deep: #071e42;
  --blue-soft: #d6e8ff;
  --blue-mid: #4a8fe7;
  --blue-btn: #1a5fb4;
  --green-money: #1a9e4a;
  --red-tip: #c0392b;
  --gray-bg: #eef2f7;
  --gray-border: #c5d0e0;
  --gray-text: #6b7a90;
  --white: #ffffff;
  --shadow: 0 2px 10px rgba(11, 42, 91, 0.08);
  --radius: 10px;
  --font: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font);
  background: linear-gradient(160deg, #e8f0fb 0%, #f4f7fb 40%, #dfeaf8 100%);
  min-height: 100vh;
  color: var(--navy-deep);
  padding-bottom: 40px;
}

/* ===== 登录页 ===== */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background:
    radial-gradient(ellipse at 20% 20%, rgba(74, 143, 231, 0.25), transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(11, 42, 91, 0.12), transparent 45%),
    linear-gradient(160deg, #e8f0fb 0%, #f4f7fb 40%, #dfeaf8 100%);
}

.login-page[hidden] {
  display: none !important;
}

.login-card {
  width: 100%;
  max-width: 420px;
  background: var(--white);
  border-radius: 14px;
  box-shadow: 0 10px 40px rgba(11, 42, 91, 0.12);
  padding: 36px 28px 28px;
  text-align: center;
}

.login-card h1 {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--navy);
  letter-spacing: 0.08em;
  margin-bottom: 6px;
}

.login-sub {
  color: var(--gray-text);
  font-size: 0.9rem;
  margin-bottom: 24px;
}

.login-form {
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.login-form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gray-text);
}

.login-form input {
  font-family: inherit;
  font-size: 0.95rem;
  padding: 10px 12px;
  border: 1px solid var(--gray-border);
  border-radius: 8px;
  color: var(--navy-deep);
}

.login-actions {
  display: flex;
  gap: 10px;
  margin-top: 4px;
}

.login-actions .primary-btn {
  width: 100%;
}

.login-note {
  margin-top: 18px;
  font-size: 0.78rem;
  color: var(--gray-text);
  line-height: 1.5;
}

.app-shell[hidden] {
  display: none !important;
}

/* ===== 全局标题 ===== */
.global-title {
  position: relative;
  text-align: center;
  padding: 28px 16px 18px;
}

.global-title h1 {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--navy);
  letter-spacing: 0.12em;
}

.header-right {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  gap: 8px;
}

.user-chip {
  max-width: 120px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--navy);
  background: var(--blue-soft);
  padding: 6px 10px;
  border-radius: 999px;
}

.settings-entry {
  font-family: inherit;
  cursor: pointer;
  border: 1px solid var(--gray-border);
  background: var(--white);
  color: var(--navy);
  font-size: 0.85rem;
  font-weight: 700;
  padding: 8px 12px;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.settings-entry:hover {
  background: var(--blue-soft);
}

.loading-mask {
  position: fixed;
  inset: 0;
  z-index: 3000;
  background: rgba(7, 30, 66, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
}

.loading-mask[hidden] {
  display: none !important;
}

.loading-box {
  background: var(--white);
  color: var(--navy);
  font-weight: 700;
  padding: 16px 28px;
  border-radius: 10px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
}

/* ===== 页面切换 ===== */
.page {
  display: none;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 20px 24px;
}

.page.active {
  display: block;
}

/* ===== 首页双栏布局 ===== */
.home-top-row,
.stat-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

/* ===== 库存专区 ===== */
.zone-box,
.stat-box,
.box {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
}

.zone-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--navy);
  text-align: center;
  padding-bottom: 12px;
  margin-bottom: 16px;
  border-bottom: 2px solid var(--blue-soft);
}

.stock-preview {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 18px;
}

.global-stock-preview {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-bottom: 18px;
  max-width: 280px;
  margin-left: auto;
  margin-right: auto;
}

.stock-card {
  background: var(--blue-soft);
  border-radius: var(--radius);
  padding: 14px 8px;
  text-align: center;
}

.stock-card .gear-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 6px;
}

.stock-card .stock-num {
  display: block;
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--blue-btn);
  line-height: 1.2;
}

.btn-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.btn-grid-5 {
  grid-template-columns: 1fr 1fr;
}

.btn-grid-5 .nav-btn:last-child {
  grid-column: 1 / -1;
}

.nav-btn,
.primary-btn,
.price-btn,
.back-btn,
.cancel-btn,
.gear-tab {
  font-family: inherit;
  cursor: pointer;
  border: none;
  border-radius: 8px;
  transition: background 0.15s, transform 0.1s;
}

.nav-btn:active,
.primary-btn:active,
.price-btn:active,
.back-btn:active {
  transform: scale(0.97);
}

.nav-btn {
  background: var(--blue-btn);
  color: var(--white);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 12px 10px;
}

.nav-btn:hover {
  background: var(--navy);
}

/* ===== 销量统计 ===== */
.stat-header {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  min-height: 36px;
}

.price-btn {
  position: absolute;
  left: 0;
  background: var(--gray-bg);
  color: var(--navy);
  font-size: 0.8rem;
  padding: 6px 12px;
  border: 1px solid var(--gray-border);
}

.price-btn:hover {
  background: var(--blue-soft);
}

.stat-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--navy);
}

.today-block {
  background: var(--blue-soft);
  border-radius: var(--radius);
  padding: 14px 16px;
  margin-bottom: 14px;
}

.today-block h3 {
  font-size: 0.95rem;
  margin-bottom: 10px;
  color: var(--navy);
}

.today-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 12px;
}

.today-cards-single {
  grid-template-columns: 1fr;
  max-width: 160px;
}

.today-card {
  background: var(--white);
  border-radius: 8px;
  padding: 10px 6px;
  text-align: center;
}

.today-card .gear-label {
  display: block;
  font-size: 0.8rem;
  color: var(--gray-text);
  margin-bottom: 4px;
}

.today-card .sale-num {
  display: block;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--navy);
}

.today-revenue {
  border-top: 1px solid rgba(11, 42, 91, 0.15);
  padding-top: 10px;
  font-size: 0.95rem;
  text-align: center;
}

.money {
  color: var(--green-money);
  font-weight: 700;
  font-size: 1.1em;
}

.recent-block {
  margin-bottom: 14px;
}

.recent-block h4 {
  font-size: 0.9rem;
  color: var(--navy);
  margin-bottom: 8px;
}

.recent-list {
  font-size: 0.78rem;
  color: var(--gray-text);
  line-height: 1.7;
}

.recent-list .recent-item {
  border-bottom: 1px dashed #e0e6ef;
  padding: 2px 0;
}

.recent-list .recent-item:last-child {
  border-bottom: none;
}

.total-bar {
  background: var(--blue-soft);
  border-radius: 8px;
  padding: 14px;
  text-align: center;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--navy);
}

.total-bar .money {
  font-size: 1.25rem;
}

/* ===== 独立分页 ===== */
.page-bar {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  min-height: 42px;
}

.back-btn {
  position: absolute;
  left: 0;
  background: var(--gray-bg);
  color: var(--navy);
  font-size: 0.9rem;
  padding: 8px 16px;
  border: 1px solid var(--gray-border);
}

.back-btn:hover {
  background: var(--blue-soft);
}

.page-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--navy);
}

.gear-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
  background: var(--white);
  padding: 12px 16px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.gear-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.gear-tab {
  background: var(--gray-bg);
  color: var(--navy);
  padding: 8px 18px;
  font-size: 0.9rem;
  font-weight: 600;
  border: 1px solid var(--gray-border);
}

.gear-tab.active {
  background: var(--blue-btn);
  color: var(--white);
  border-color: var(--blue-btn);
}

.gear-count {
  font-size: 0.9rem;
  color: var(--gray-text);
}

.table-wrap {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

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

.data-table th {
  background: var(--blue-soft);
  color: var(--navy);
  font-weight: 700;
  white-space: nowrap;
}

.data-table tbody tr:nth-child(even) {
  background: #f8fafc;
}

.empty-tip {
  text-align: center;
  color: var(--gray-text);
  padding: 40px 16px;
  font-size: 0.95rem;
}

.log-table td {
  vertical-align: top;
}

.log-detail {
  width: 100%;
  min-width: 220px;
  max-width: 360px;
  height: 80px;
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.75rem;
  resize: vertical;
  border: 1px solid var(--gray-border);
  border-radius: 4px;
  padding: 6px;
  background: #f8fafc;
  color: var(--navy-deep);
}

/* ===== 操作框 ===== */
.op-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 14px;
  margin-bottom: 12px;
}

.op-bar label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 0.85rem;
  color: var(--gray-text);
  font-weight: 600;
}

.op-bar select,
.op-bar input[type="number"],
#inputArea,
.result-text {
  font-family: inherit;
  font-size: 0.95rem;
  padding: 8px 10px;
  border: 1px solid var(--gray-border);
  border-radius: 6px;
  color: var(--navy-deep);
  background: var(--white);
}

.op-bar select,
.op-bar input[type="number"] {
  min-width: 120px;
}

.primary-btn {
  background: var(--blue-btn);
  color: var(--white);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 10px 20px;
}

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

.tip {
  color: var(--red-tip);
  font-size: 0.9rem;
  min-height: 1.4em;
  margin-bottom: 10px;
}

.result-text {
  width: 100%;
  height: 220px;
  resize: vertical;
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.85rem;
  line-height: 1.5;
  margin-bottom: 12px;
}

.copy-btn {
  display: block;
  width: 100%;
  max-width: 240px;
  margin: 0 auto;
}

.format-hint {
  font-size: 0.9rem;
  color: var(--gray-text);
  margin-bottom: 12px;
  line-height: 1.6;
}

.format-hint code {
  display: inline-block;
  margin-top: 4px;
  background: var(--gray-bg);
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 0.82rem;
  color: var(--navy);
}

#inputArea {
  width: 100%;
  resize: vertical;
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.85rem;
  line-height: 1.5;
  margin-bottom: 14px;
}

/* ===== 价格弹窗 ===== */
.modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal[hidden] {
  display: none;
}

.modal-mask {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
}

.modal-box {
  position: relative;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
  padding: 24px 28px;
  width: 90%;
  max-width: 400px;
  z-index: 1;
}

.modal-box h3 {
  text-align: center;
  font-size: 1.15rem;
  color: var(--navy);
  margin-bottom: 20px;
}

.price-fields {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 22px;
}

.price-fields label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--navy);
}

.price-fields input {
  width: 140px;
  padding: 8px 10px;
  border: 1px solid var(--gray-border);
  border-radius: 6px;
  font-size: 0.95rem;
  font-family: inherit;
}

.modal-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
}

.cancel-btn {
  background: var(--gray-bg);
  color: var(--navy);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 10px 24px;
  border: 1px solid var(--gray-border);
}

.cancel-btn:hover {
  background: #dde3ec;
}

.danger-btn {
  font-family: inherit;
  cursor: pointer;
  border: none;
  border-radius: 8px;
  background: #c0392b;
  color: var(--white);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 10px 16px;
  transition: background 0.15s, transform 0.1s;
}

.danger-btn:hover {
  background: #a93226;
}

.danger-btn:active {
  transform: scale(0.97);
}

.link-btn {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: transparent;
  color: var(--blue-btn);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 2px 6px;
  margin-right: 4px;
}

.link-btn:hover {
  text-decoration: underline;
}

.link-btn.danger {
  color: var(--red-tip);
}

.list-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-bottom: 12px;
  background: var(--white);
  padding: 12px 16px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.list-toolbar input[type="search"],
.list-toolbar select {
  font-family: inherit;
  font-size: 0.9rem;
  padding: 8px 10px;
  border: 1px solid var(--gray-border);
  border-radius: 6px;
  min-width: 180px;
  flex: 1;
}

.stock-hint {
  font-size: 0.85rem;
  color: var(--gray-text);
  margin-bottom: 8px;
}

.check-label {
  display: inline-flex !important;
  flex-direction: row !important;
  align-items: center;
  gap: 6px !important;
  font-size: 0.9rem;
  color: var(--navy);
  font-weight: 600;
  cursor: pointer;
}

.stock-num.low-stock {
  color: var(--red-tip) !important;
}

/* ===== 设置面板 ===== */
.settings-box {
  max-width: 640px;
  max-height: 88vh;
  overflow-y: auto;
  padding: 0;
}

.settings-head {
  position: sticky;
  top: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  background: var(--white);
  border-bottom: 1px solid var(--gray-border);
}

.settings-head h3 {
  margin: 0;
  font-size: 1.2rem;
  color: var(--navy);
}

.icon-close {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: var(--gray-bg);
  width: 34px;
  height: 34px;
  border-radius: 8px;
  font-size: 1.4rem;
  line-height: 1;
  color: var(--navy);
}

.icon-close:hover {
  background: var(--blue-soft);
}

.settings-overview {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  padding: 16px 24px;
  background: linear-gradient(180deg, #eef6ff, #fff);
}

.overview-card {
  background: var(--white);
  border: 1px solid var(--gray-border);
  border-radius: 8px;
  padding: 12px;
}

.overview-card .label {
  display: block;
  font-size: 0.78rem;
  color: var(--gray-text);
  margin-bottom: 4px;
}

.overview-card .value {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--navy);
}

.settings-section {
  padding: 16px 24px;
  border-top: 1px solid #e8eef6;
}

.settings-section h4 {
  font-size: 0.95rem;
  color: var(--navy);
  margin-bottom: 10px;
}

.settings-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.settings-note {
  margin-top: 8px;
  font-size: 0.78rem;
  color: var(--gray-text);
  line-height: 1.5;
}

.settings-note.inline {
  margin-top: 0;
  margin-left: 8px;
}

.pref-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.pref-row label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--navy);
}

.pref-row input[type="number"] {
  width: 90px;
  padding: 6px 8px;
  border: 1px solid var(--gray-border);
  border-radius: 6px;
  font-family: inherit;
}

.danger-zone {
  background: #fff5f5;
}

.confirm-box {
  max-width: 420px;
}

.confirm-box p {
  color: var(--gray-text);
  line-height: 1.6;
  margin-bottom: 20px;
  font-size: 0.95rem;
}

/* ===== Toast ===== */
.toast {
  position: fixed;
  left: 50%;
  bottom: 32px;
  transform: translateX(-50%);
  background: var(--navy);
  color: var(--white);
  padding: 12px 22px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  z-index: 2000;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
  max-width: 90vw;
}

.toast[hidden] {
  display: none;
}

/* ===== 响应式 ===== */
@media (max-width: 860px) {
  .home-top-row,
  .stat-row {
    grid-template-columns: 1fr;
  }

  .global-title h1 {
    font-size: 1.7rem;
    letter-spacing: 0.08em;
  }

  .header-right {
    right: 8px;
    gap: 4px;
  }

  .user-chip {
    display: none;
  }

  .settings-entry {
    padding: 6px 10px;
    font-size: 0.78rem;
  }

  .settings-overview {
    grid-template-columns: 1fr;
  }

  .stock-preview {
    grid-template-columns: repeat(3, 1fr);
  }

  .today-cards {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-bar {
    justify-content: flex-start;
    padding-left: 0;
  }

  .back-btn {
    position: static;
    margin-right: 12px;
  }

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

@media (max-width: 480px) {
  .stock-preview {
    grid-template-columns: 1fr;
  }

  .today-cards {
    grid-template-columns: 1fr;
  }

  .stock-card .stock-num {
    font-size: 1.5rem;
  }
}