@import 'variables.css';

/* ========================================
   页面容器
   ======================================== */
.page {
  min-height: 100vh;
  background-color: var(--color-bg);
  padding-bottom: 60px;
}

.page-content {
  padding: 16px;
  padding-bottom: 80px;
}

/* ========================================
   顶栏
   ======================================== */
.header {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background-color: var(--color-primary);
  color: #ffffff;
  padding: 14px 16px;
  font-size: 17px;
  font-weight: 600;
  text-align: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.header-title {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.header-icon {
  width: 20px;
  height: 20px;
}

/* ========================================
   卡片
   ======================================== */
.card {
  background-color: var(--color-card);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 12px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.card-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.card-body {
  color: var(--color-text-secondary);
  font-size: 14px;
  line-height: 1.6;
}

/* ========================================
   统计卡片网格
   ======================================== */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}

.stat-card {
  background-color: var(--color-card);
  border-radius: 12px;
  padding: 16px;
  text-align: center;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.stat-label {
  font-size: 12px;
  color: var(--color-text-secondary);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.stat-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
}

.stat-sub {
  font-size: 11px;
  color: var(--color-text-secondary);
  margin-top: 4px;
}

.stat-icon {
  width: 40px;
  height: 40px;
  margin: 0 auto 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background-color: var(--color-bg);
}

/* ========================================
   按钮
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 500;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  gap: 6px;
}

.btn:active {
  transform: scale(0.98);
  opacity: 0.9;
}

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

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

.btn-secondary {
  background-color: var(--color-bg);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  background-color: var(--color-border);
}

.btn-danger {
  background-color: var(--color-danger);
  color: #ffffff;
}

.btn-danger:hover {
  opacity: 0.9;
}

.btn-block {
  display: flex;
  width: 100%;
  padding: 12px 20px;
  font-size: 15px;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 12px;
}

.btn-icon {
  width: 36px;
  height: 36px;
  padding: 0;
  border-radius: 50%;
}

/* ========================================
   底部Tab栏
   ======================================== */
.tab-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 60px;
  background-color: var(--color-card);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.08);
  z-index: 100;
}

.tab-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  color: var(--color-text-secondary);
  font-size: 11px;
  cursor: pointer;
  transition: color 0.2s ease;
  -webkit-tap-highlight-color: transparent;
}

.tab-item.active {
  color: var(--color-primary);
}

.tab-item-icon {
  width: 22px;
  height: 22px;
}

.tab-item-text {
  font-weight: 500;
}

/* ========================================
   子Tab
   ======================================== */
.sub-tabs {
  display: flex;
  background-color: var(--color-card);
  border-bottom: 1px solid var(--color-border);
  padding: 0 12px;
  gap: 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.sub-tabs::-webkit-scrollbar {
  display: none;
}

.sub-tab {
  padding: 12px 16px;
  font-size: 14px;
  color: var(--color-text-secondary);
  white-space: nowrap;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.2s ease;
}

.sub-tab.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
  font-weight: 600;
}

.sub-tab:hover:not(.active) {
  color: var(--color-text);
}

/* ========================================
   列表项
   ======================================== */
.list-item {
  display: flex;
  align-items: center;
  padding: 14px 16px;
  background-color: var(--color-card);
  border-bottom: 1px solid var(--color-border);
  cursor: pointer;
  transition: background-color 0.15s ease;
}

.list-item:first-child {
  border-top-left-radius: 12px;
  border-top-right-radius: 12px;
}

.list-item:last-child {
  border-bottom-left-radius: 12px;
  border-bottom-right-radius: 12px;
  border-bottom: none;
}

.list-item:active {
  background-color: var(--color-bg);
}

.list-item-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-bg);
  margin-right: 12px;
  flex-shrink: 0;
}

.list-item-icon svg {
  width: 20px;
  height: 20px;
  color: var(--color-primary);
}

.list-item-content {
  flex: 1;
  min-width: 0;
}

.list-item-title {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 2px;
}

.list-item-desc {
  font-size: 13px;
  color: var(--color-text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.list-item-arrow {
  width: 16px;
  height: 16px;
  color: var(--color-text-secondary);
  margin-left: 8px;
  flex-shrink: 0;
}

/* ========================================
   设备卡片网格
   ======================================== */
.device-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  padding: 12px;
}

.device-card {
  background-color: var(--color-card);
  border-radius: 12px;
  padding: 14px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.device-card:active {
  transform: scale(0.98);
}

.device-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 10px;
}

.device-card-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background-color: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.device-card-icon svg {
  width: 24px;
  height: 24px;
  color: var(--color-primary);
}

.device-card-status {
  padding: 3px 8px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 500;
}

.device-card-status.online {
  background-color: rgba(34, 197, 94, 0.12);
  color: var(--color-online);
}

.device-card-status.offline {
  background-color: rgba(156, 163, 175, 0.12);
  color: var(--color-offline);
}

.device-card-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.device-card-model {
  font-size: 12px;
  color: var(--color-text-secondary);
  margin-bottom: 6px;
}

.device-card-location {
  font-size: 12px;
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  gap: 4px;
}

.device-card-location svg {
  width: 12px;
  height: 12px;
}

/* ========================================
   预警列表项
   ======================================== */
.alert-item {
  display: flex;
  padding: 14px 16px;
  background-color: var(--color-card);
  border-radius: 12px;
  margin-bottom: 10px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
  cursor: pointer;
  transition: transform 0.15s ease;
}

.alert-item:active {
  transform: scale(0.99);
}

.alert-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 12px;
  flex-shrink: 0;
}

.alert-icon svg {
  width: 20px;
  height: 20px;
}

.alert-icon.danger {
  background-color: rgba(249, 115, 22, 0.12);
  color: var(--color-danger);
}

.alert-icon.warning {
  background-color: rgba(234, 179, 8, 0.12);
  color: var(--color-warning);
}

.alert-icon.handled {
  background-color: rgba(156, 163, 175, 0.12);
  color: var(--color-offline);
}

.alert-content {
  flex: 1;
  min-width: 0;
}

.alert-title {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 4px;
  line-height: 1.4;
}

.alert-meta {
  font-size: 12px;
  color: var(--color-text-secondary);
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.alert-meta-item {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* ========================================
   表单
   ======================================== */
.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 8px;
}

.form-label-required::after {
  content: ' *';
  color: var(--color-danger);
}

.form-input {
  width: 100%;
  padding: 10px 14px;
  font-size: 14px;
  color: var(--color-text);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(30, 58, 95, 0.1);
}

.form-input::placeholder {
  color: var(--color-text-secondary);
}

.form-input:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

textarea.form-input {
  min-height: 100px;
  resize: vertical;
  line-height: 1.5;
}

/* ========================================
   复选框
   ======================================== */
.checkbox-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.checkbox-item {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}

.checkbox-item input[type="checkbox"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--color-primary);
}

.checkbox-label {
  font-size: 14px;
  color: var(--color-text);
}

.form-select {
  width: 100%;
  padding: 10px 36px 10px 14px;
  font-size: 14px;
  color: var(--color-text);
  background-color: var(--color-bg);
  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='%236b7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  outline: none;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
  transition: border-color 0.2s ease;
}

.form-select:focus {
  border-color: var(--color-primary);
}

.form-hint {
  font-size: 12px;
  color: var(--color-text-secondary);
  margin-top: 6px;
}

.form-error {
  font-size: 12px;
  color: var(--color-danger);
  margin-top: 6px;
}

/* ========================================
   图片上传
   ======================================== */
.photo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.photo-item {
  aspect-ratio: 1;
  border-radius: 8px;
  overflow: hidden;
  position: relative;
  background-color: var(--color-bg);
}

.photo-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.photo-item-delete {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background-color: rgba(0, 0, 0, 0.5);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.photo-item-delete svg {
  width: 14px;
  height: 14px;
}

.photo-add {
  aspect-ratio: 1;
  border-radius: 8px;
  border: 1px dashed var(--color-border);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  cursor: pointer;
  transition: border-color 0.2s ease, background-color 0.2s ease;
  background-color: var(--color-bg);
}

.photo-add:hover {
  border-color: var(--color-primary);
  background-color: rgba(30, 58, 95, 0.04);
}

.photo-add-icon {
  width: 28px;
  height: 28px;
  color: var(--color-text-secondary);
}

.photo-add-text {
  font-size: 12px;
  color: var(--color-text-secondary);
}

/* ========================================
   Toast提示
   ======================================== */
.toast {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 9999;
  padding: 12px 24px;
  background-color: rgba(0, 0, 0, 0.75);
  color: #ffffff;
  border-radius: 8px;
  font-size: 14px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  animation: toast-in 0.3s ease forwards;
  max-width: 80%;
  text-align: center;
}

.toast.success {
  background-color: var(--color-success);
}

.toast.warning {
  background-color: var(--color-warning);
}

.toast.error {
  background-color: var(--color-danger);
}

@keyframes toast-in {
  0% {
    opacity: 0;
    transform: translateX(-50%) translateY(-20px);
  }
  100% {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

@keyframes toast-out {
  0% {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
  100% {
    opacity: 0;
    transform: translateX(-50%) translateY(-20px);
  }
}

/* ========================================
   空状态
   ======================================== */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  text-align: center;
}

.empty-state-icon {
  width: 80px;
  height: 80px;
  margin-bottom: 16px;
  color: var(--color-text-secondary);
  opacity: 0.5;
}

.empty-state-text {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 20px;
}

.empty-state-action {
  margin-top: 8px;
}

/* ========================================
   辅助类
   ======================================== */
.text-primary { color: var(--color-primary); }
.text-danger { color: var(--color-danger); }
.text-warning { color: var(--color-warning); }
.text-success { color: var(--color-success); }
.text-secondary { color: var(--color-text-secondary); }

.bg-primary { background-color: var(--color-primary); }
.bg-danger { background-color: var(--color-danger); }
.bg-warning { background-color: var(--color-warning); }
.bg-success { background-color: var(--color-success); }

.border-radius { border-radius: 8px; }
.border-radius-lg { border-radius: 12px; }
.border-radius-full { border-radius: 50%; }

.shadow { box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08); }
.shadow-md { box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1); }
.shadow-lg { box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1); }

/* Flex utilities */
.flex-1 { flex: 1; }
.flex-shrink-0 { flex-shrink: 0; }
.flex-wrap { flex-wrap: wrap; }

/* Spacing */
.mt-1 { margin-top: 4px; }
.mt-4 { margin-top: 16px; }
.mb-1 { margin-bottom: 4px; }
.mb-2 { margin-bottom: 8px; }
.mb-4 { margin-bottom: 16px; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* Grid */
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Divider */
.divider {
  height: 1px;
  background-color: var(--color-border);
  margin: 16px 0;
}

.divider-vertical {
  width: 1px;
  background-color: var(--color-border);
  margin: 0 16px;
}

/* ========================================
   设备详情页
   ======================================== */
.device-info {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.device-info-left {
  display: flex;
  gap: 12px;
}

.device-info-icon {
  font-size: 40px;
}

.device-info-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.device-info-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
}

.device-info-model {
  font-size: 13px;
  color: var(--color-text-secondary);
}

.device-info-location {
  font-size: 12px;
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  gap: 4px;
}

.device-info-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
}

.device-status-badge {
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 500;
}

.device-status-badge.online {
  background-color: rgba(34, 197, 94, 0.12);
  color: var(--color-online);
}

.device-status-badge.offline {
  background-color: rgba(156, 163, 175, 0.12);
  color: var(--color-offline);
}

.device-last-seen {
  font-size: 11px;
  color: var(--color-text-secondary);
}

/* ========================================
   数据网格
   ======================================== */
.data-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.data-item {
  background-color: var(--color-bg);
  border-radius: 8px;
  padding: 12px;
}

.data-label {
  font-size: 12px;
  color: var(--color-text-secondary);
  margin-bottom: 4px;
}

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

.data-unit {
  font-size: 12px;
  font-weight: 400;
  color: var(--color-text-secondary);
  margin-left: 2px;
}

/* ========================================
   告警横幅
   ======================================== */
.alert-banner {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  border-radius: 8px;
  margin-bottom: 12px;
  font-size: 14px;
}

.alert-banner.hidden {
  display: none;
}

.alert-banner.alert-danger {
  background-color: rgba(249, 115, 22, 0.12);
  color: var(--color-danger);
}

.alert-banner.alert-warning {
  background-color: rgba(234, 179, 8, 0.12);
  color: var(--color-warning);
}

.alert-banner-icon {
  font-size: 16px;
}

.alert-banner-msg {
  flex: 1;
}

/* ========================================
   刷新栏
   ======================================== */
.refresh-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
}

.refresh-time {
  font-size: 12px;
  color: var(--color-text-secondary);
}