body {
  margin: 0;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f5f7fb;
  color: #1f2d3d;
}

.page-shell {
  max-width: 1280px;
  margin: 0 auto;
  padding: 24px;
}

.page-shell.wide {
  max-width: none;
  width: 100%;
  box-sizing: border-box;
  padding: 18px;
}

.hero-header.compact {
  padding: 16px 18px;
  margin-bottom: 12px;
  border-radius: 18px;
}

.hero-header.compact .page-title {
  font-size: 24px;
}

.hero-header.compact .page-subtitle {
  font-size: 13px;
}

.three-column-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.85fr) minmax(420px, 1.15fr) minmax(360px, 1fr);
  gap: 14px;
  align-items: start;
}

.column-panel {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 0;
}

.compact-row {
  margin-bottom: 12px;
}

.compact-field {
  margin-top: 12px;
}

.compact-card .field {
  margin-bottom: 8px;
}

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

.form-grid .full-width {
  grid-column: 1 / -1;
}


.compact-list .serial-device-item,
.compact-list .serial-device-empty {
  padding: 10px;
}


.page-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 20px;
}

.page-head-actions {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.page-title {
  font-size: 28px;
  font-weight: 700;
}

.page-subtitle {
  margin-top: 6px;
  color: #909399;
}


.hero-header {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: flex-start;
  padding: 26px;
  margin-bottom: 16px;
  border-radius: 24px;
  color: #fff;
  background: radial-gradient(circle at top left, #60a5fa 0, transparent 28%), linear-gradient(135deg, #0f172a 0%, #1d4ed8 100%);
  box-shadow: 0 20px 50px rgba(15, 23, 42, 0.2);
}

.hero-header .page-subtitle,
.hero-header .meta-text {
  color: rgba(255, 255, 255, 0.78);
}

.eyebrow {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: #bfdbfe;
  margin-bottom: 8px;
  font-weight: 800;
}

.top-overview {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 16px;
  margin-bottom: 16px;
}

.overview-main,
.overview-side {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.step-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.step-item,
.metric-card {
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  padding: 14px;
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.06);
}

.step-item {
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.step-index {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #e0ecff;
  color: #1d4ed8;
  font-weight: 800;
}

.step-item.done .step-index {
  background: #dcfce7;
  color: #15803d;
}

.step-item.danger .step-index {
  background: #fee2e2;
  color: #b91c1c;
}

.step-title {
  font-weight: 700;
  font-size: 14px;
}

.step-detail {
  color: #64748b;
  font-size: 12px;
  margin-top: 4px;
  line-height: 1.45;
}

.metric-card span {
  display: block;
  font-size: 12px;
  color: #64748b;
  margin-bottom: 6px;
}

.metric-card b {
  font-size: 17px;
}

.notice {
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid #dbeafe;
  background: #eff6ff;
  color: #1e40af;
  font-size: 13px;
  line-height: 1.6;
}

.notice code {
  background: rgba(15, 23, 42, 0.08);
  padding: 2px 5px;
  border-radius: 6px;
}

.notice.success {
  border-color: #bbf7d0;
  background: #f0fdf4;
  color: #166534;
}

.notice.danger {
  border-color: #fecaca;
  background: #fef2f2;
  color: #991b1b;
}

.notice.muted {
  margin-top: 12px;
  background: #f8fafc;
  color: #64748b;
  border-color: #e2e8f0;
}



.card-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
  gap: 16px;
  align-items: start;
}

.left-panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-width: 0;
}

.right-panel {
  min-width: 0;
}

.card-block {
  background: #fff;
  border-radius: 16px;
  padding: 20px;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
  border: 1px solid rgba(226, 232, 240, 0.9);
}

.hero-card {
  background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
}

.card-title-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
}

.card-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 16px;
}

.card-title-row .card-title {
  margin-bottom: 4px;
}

.card-desc {
  color: #64748b;
  font-size: 13px;
  line-height: 1.5;
}

.log-card {
  min-height: 100%;
}

.log-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}

.log-toolbar-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.log-stats {
  margin-top: 12px;
  color: #64748b;
  font-size: 12px;
}

.log-panel {
  margin-top: 12px;
  background: #0f172a;
  color: #e2e8f0;
  border-radius: 12px;
  padding: 16px;
  min-height: 560px;
  max-height: 70vh;
  overflow: auto;
  word-break: break-word;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

.log-entry {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 6px 0;
  border-bottom: 1px solid rgba(148, 163, 184, 0.12);
  line-height: 1.5;
}

.log-entry:last-child {
  border-bottom: 0;
}

.log-time {
  color: #94a3b8;
  flex: 0 0 auto;
}

.log-text {
  flex: 1;
  white-space: pre-wrap;
}

.log-entry.success .log-text {
  color: #86efac;
}

.log-entry.error .log-text {
  color: #fca5a5;
}

.log-entry.warning .log-text {
  color: #fde68a;
}

.log-entry.action .log-text {
  color: #93c5fd;
}

.meta-text {
  color: #606266;
  font-size: 13px;
}

.tabs-row {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.tab-btn,
.button {
  border: 1px solid #d0d7de;
  background: #fff;
  color: #1f2d3d;
  padding: 10px 14px;
  border-radius: 10px;
  cursor: pointer;
  font-size: 14px;
  transition: all 0.2s ease;
}

.tab-btn:hover,
.button:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 16px rgba(37, 99, 235, 0.12);
}

.button[disabled] {
  cursor: not-allowed;
  opacity: 0.65;
  transform: none;
  box-shadow: none;
}

.tab-btn.active,
.button.primary {
  background: #2563eb;
  color: #fff;
  border-color: #2563eb;
}

.button.danger {
  background: #dc2626;
  color: #fff;
  border-color: #dc2626;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 12px;
}

.field label {
  font-size: 14px;
  color: #475569;
}

.field input,
.field select,
.field textarea {
  border: 1px solid #d0d7de;
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 14px;
  box-sizing: border-box;
  width: 100%;
  background: #fff;
}

.input-with-button {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
  align-items: center;
}

.button.mini {
  padding: 9px 10px;
  font-size: 13px;
  white-space: nowrap;
}

.compact-note {
  margin-top: 10px;
  padding: 9px 11px;
  font-size: 12px;
}


.button.ghost {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.3);
}

.button.big {
  padding: 13px 22px;
  font-weight: 800;
  font-size: 15px;
}

.primary-actions {
  align-items: center;
  margin-top: 14px;
}

.badge.warn {
  background: #fef3c7;
  color: #92400e;
}

.section-mini-title {
  font-size: 13px;
  color: #475569;
  font-weight: 800;
  margin-bottom: 8px;
}

.flash-plan-box {
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  background: #f8fafc;
  padding: 12px;
  margin-top: 8px;
}

.flash-plan-item {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr) 80px;
  gap: 10px;
  align-items: center;
  padding: 8px 0;
  border-top: 1px dashed #e2e8f0;
  font-size: 12px;
}

.flash-plan-item:first-of-type {
  border-top: 0;
}

.flash-address {
  color: #1d4ed8;
  font-family: Consolas, Menlo, monospace;
  font-weight: 800;
}

.flash-file {
  min-width: 0;
  color: #0f172a;
  word-break: break-all;
}

.flash-size {
  text-align: right;
  color: #64748b;
}

.flash-plan-empty {
  color: #92400e;
  font-size: 13px;
}

.serial-check-grid,
.serial-session-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.serial-check-item {
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  padding: 12px;
  background: #f8fafc;
}

.serial-check-item.success {
  background: #f0fdf4;
  border-color: #bbf7d0;
}

.serial-check-item.warning {
  background: #fffbeb;
  border-color: #fde68a;
}

.serial-check-item.danger {
  background: #fef2f2;
  border-color: #fecaca;
}

.serial-check-label {
  font-weight: 800;
  font-size: 13px;
  margin-bottom: 4px;
}

.serial-check-detail,
.serial-device-meta {
  color: #64748b;
  font-size: 12px;
  line-height: 1.5;
}

.serial-device-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 12px;
}

.serial-device-empty,
.serial-device-item {
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  padding: 12px;
  background: #fff;
}

.serial-device-item.selected {
  border-color: #93c5fd;
  box-shadow: 0 0 0 3px rgba(147, 197, 253, 0.22);
}

.serial-device-head,
.serial-device-tags,
.serial-session-status-row {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.serial-device-title {
  font-weight: 800;
}

.serial-inline-status {
  padding: 8px 10px;
  border-radius: 10px;
  background: #fffbeb;
  color: #92400e;
  font-size: 12px;
}

.serial-inline-status.success {
  background: #dcfce7;
  color: #166534;
}

.manifest-details {
  margin-top: 12px;
}

.manifest-details summary {
  cursor: pointer;
  color: #2563eb;
  font-weight: 700;
  margin-bottom: 8px;
}


.field input[disabled] {
  background: #f3f4f6;
  color: #6b7280;
}

.actions-row,
.badges-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 12px;
  background: #e5e7eb;
  color: #374151;
}

.serial-status {
  margin-top: 10px;
  padding: 10px 12px;
  border-radius: 10px;
  font-size: 13px;
  line-height: 1.6;
  border: 1px solid #e2e8f0;
  background: #f8fafc;
}

.serial-status.success {
  color: #166534;
  background: #f0fdf4;
  border-color: #bbf7d0;
}

.serial-status.warning {
  color: #92400e;
  background: #fffbeb;
  border-color: #fde68a;
}

.serial-status.danger {
  color: #991b1b;
  background: #fef2f2;
  border-color: #fecaca;
}

.serial-actions-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 10px;
}

.badge.success {
  background: #dcfce7;
  color: #166534;
}

.badge.danger {
  background: #fee2e2;
  color: #991b1b;
}

.manifest-box {
  margin-bottom: 12px;
  padding: 12px;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 10px;
  white-space: pre-wrap;
  word-break: break-all;
  font-size: 12px;
}

@media (max-width: 960px) {
  .hero-header,
  .top-overview {
    grid-template-columns: 1fr;
    flex-direction: column;
  }

  .step-grid,
  .card-grid,
  .three-column-grid,
  .form-grid,
  .form-grid.single,
  .serial-check-grid,
  .serial-session-grid {
    grid-template-columns: 1fr;
  }

  .log-toolbar {
    flex-direction: column;
  }

  .log-toolbar-actions {
    width: 100%;
    justify-content: flex-start;
  }

  .log-panel {
    min-height: 240px;
    max-height: none;
  }
}