:root {
  color-scheme: dark;
  --bg: #101512;
  --panel: #17201b;
  --panel-soft: #1b2820;
  --border: #294233;
  --text: #d9e7dc;
  --muted: #8da395;
  --accent: #7ddf9b;
  --warn: #f0c36e;
  --danger: #ef8d8d;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html,
body {
  width: 100%;
  height: 100%;
  overscroll-behavior: none;
}

body {
  margin: 0;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}

button,
select {
  font: inherit;
}

button:focus-visible,
select:focus-visible,
a:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.terminal-shell {
  position: fixed;
  inset: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--bg);
}

.topbar {
  display: grid;
  flex: 0 0 auto;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(
    180deg,
    rgba(23, 32, 27, 0.97),
    rgba(16, 21, 18, 0.97)
  );
}

.summary {
  display: flex;
  align-items: center;
  min-width: 0;
  gap: 10px 14px;
  overflow: hidden;
  flex-wrap: nowrap;
}

.title {
  margin: 0;
  color: var(--text);
  font-size: 16px;
  font-weight: 650;
  line-height: 1.2;
  white-space: nowrap;
}

.meta {
  display: flex;
  flex: 1 1 auto;
  align-items: center;
  min-width: 0;
  gap: 8px;
  overflow: hidden;
  flex-wrap: nowrap;
}

.badge,
.panel-status {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(23, 32, 27, 0.9);
  color: var(--text);
  font-size: 13px;
  line-height: 1;
  white-space: nowrap;
}

.badge {
  flex: 0 0 auto;
}

.badge.ok,
.panel-status.ok {
  border-color: rgba(125, 223, 155, 0.35);
  color: var(--accent);
}

.badge.busy,
.panel-status.busy {
  border-color: rgba(240, 195, 110, 0.35);
  color: var(--warn);
}

.badge.err,
.panel-status.err {
  border-color: rgba(239, 141, 141, 0.35);
  color: var(--danger);
}

.panel-status.muted {
  color: var(--muted);
}

.serial-note,
.telemetry-note {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1;
  white-space: nowrap;
}

.serial-note {
  flex: 0 1 auto;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
}

.telemetry-note {
  flex: 0 0 auto;
  color: var(--accent);
}

.primary-tools {
  display: flex;
  align-items: center;
  min-width: 0;
  gap: 8px;
  flex-wrap: nowrap;
}

.primary-tools {
  justify-content: flex-end;
}

.tool {
  appearance: none;
  min-height: 34px;
  padding: 0 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(23, 32, 27, 0.9);
  color: var(--text);
  cursor: pointer;
  font-size: 13px;
  white-space: nowrap;
}

.tool:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent);
}

.tool:disabled,
select:disabled {
  cursor: default;
  opacity: 0.5;
}

.tool.primary {
  border-color: var(--accent);
  background: #215536;
  color: var(--accent);
}

.tool.paired,
.tool.danger {
  border-color: var(--danger);
  background: rgba(239, 141, 141, 0.1);
  color: var(--danger);
}

.tool.warning {
  border-color: var(--warn);
  color: var(--warn);
}

.baud-control {
  display: inline-flex;
  align-items: center;
  min-width: 0;
}

.baud-select {
  min-height: 34px;
  min-width: 122px;
  max-width: 140px;
  padding: 0 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(23, 32, 27, 0.9);
  color: var(--text);
  font-size: 13px;
}

.terminal-main {
  position: relative;
  display: flex;
  flex: 1 1 auto;
  min-height: 0;
  overflow: hidden;
}

#terminal {
  flex: 1 1 auto;
  width: 100vw;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  overscroll-behavior: none;
  touch-action: pan-y;
}

#terminal .xterm {
  height: 100%;
}

#terminal .xterm-viewport {
  overflow-y: auto !important;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: none;
  touch-action: pan-y;
}

.advanced-panel {
  position: fixed;
  top: 60px;
  right: 14px;
  z-index: 20;
  display: flex;
  flex-direction: column;
  width: min(460px, calc(100vw - 28px));
  max-height: min(720px, calc(100vh - 74px));
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(16, 21, 18, 0.98);
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.42);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-8px);
  transition: opacity 140ms ease, transform 140ms ease;
}

.advanced-panel.open {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.panel-header {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
}

.panel-title {
  margin: 0;
  color: var(--text);
  font-size: 16px;
  line-height: 1.2;
}

.panel-subtitle {
  margin: 3px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.panel-body {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  padding: 14px;
}

.control-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}

.status-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.status-grid.summary-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.status-item {
  min-width: 0;
  margin: 0;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel-soft);
}

.status-item dt {
  margin-bottom: 4px;
  color: var(--muted);
  font-size: 11px;
}

.status-item dd {
  margin: 0;
  overflow-wrap: anywhere;
  color: var(--text);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
}

.advanced-details {
  margin-top: 12px;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(23, 32, 27, 0.68);
}

.advanced-details > summary {
  color: var(--accent);
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  list-style-position: inside;
}

.advanced-details[open] > summary {
  margin-bottom: 10px;
}

.control-feedback {
  min-height: 20px;
  margin-top: 10px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.4;
}

.control-feedback.ok {
  color: var(--accent);
}

.control-feedback.err {
  color: var(--danger);
}

.advanced-section {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.advanced-section h3 {
  margin: 0 0 6px;
  color: var(--text);
  font-size: 14px;
}

.advanced-section p {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

.panel-links {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.panel-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  padding: 7px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(23, 32, 27, 0.74);
  color: var(--text);
  font-size: 12px;
  text-align: center;
  text-decoration: none;
}

.button-link {
  width: 100%;
  cursor: pointer;
}

.panel-link:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.modal {
  position: fixed;
  z-index: 1000;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(16, 21, 18, 0.9);
}

.modal.active {
  display: flex;
}

.modal-content {
  width: 100%;
  max-width: 600px;
  max-height: 80vh;
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--panel);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.confirm-modal-content {
  max-width: 430px;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 20px;
  border-bottom: 1px solid var(--border);
}

.modal-header h2 {
  margin: 0;
  color: var(--text);
  font-size: 19px;
}

.modal-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  padding: 0;
  border: 0;
  border-radius: 8px;
  background: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 24px;
}

.modal-close:hover {
  background: rgba(125, 223, 155, 0.1);
  color: var(--accent);
}

.modal-body {
  padding: 20px;
}

.modal-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border);
}

.modal-tab {
  padding: 10px 16px;
  border: 0;
  border-bottom: 2px solid transparent;
  background: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 14px;
}

.modal-tab.active {
  border-bottom-color: var(--accent);
  color: var(--accent);
}

.modal-tab-content {
  display: none;
}

.modal-tab-content.active {
  display: block;
}

.info-item {
  margin-bottom: 16px;
}

.info-item strong {
  display: block;
  margin-bottom: 4px;
  color: var(--text);
  font-size: 14px;
}

.info-item span {
  color: var(--muted);
  font-size: 14px;
}

.guide-section {
  margin-bottom: 20px;
}

.guide-section h3 {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 16px;
}

.guide-section ol,
.guide-section ul {
  margin: 8px 0;
  padding-left: 20px;
}

.guide-section li {
  margin-bottom: 8px;
  font-size: 14px;
  line-height: 1.6;
}

.guide-section strong {
  color: var(--accent);
}

.confirm-message {
  margin: 0 0 18px;
  font-size: 14px;
  line-height: 1.6;
}

.confirm-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

.action-button {
  min-height: 36px;
  padding: 0 14px;
  border: 1px solid var(--accent);
  border-radius: 999px;
  background: #215536;
  color: var(--accent);
  cursor: pointer;
}

.action-button.secondary {
  border-color: var(--border);
  background: transparent;
  color: var(--text);
}

.action-button.danger-button {
  border-color: var(--danger);
  background: rgba(239, 141, 141, 0.12);
  color: var(--danger);
}

.toast {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 1200;
  max-width: min(380px, calc(100vw - 32px));
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(23, 32, 27, 0.98);
  color: var(--text);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
  font-size: 13px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 140ms ease, transform 140ms ease;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

.toast.ok {
  border-color: rgba(125, 223, 155, 0.45);
  color: var(--accent);
}

.toast.err {
  border-color: rgba(239, 141, 141, 0.45);
  color: var(--danger);
}

@media (max-width: 720px) {
  .topbar {
    grid-template-columns: 1fr;
    gap: 7px;
    padding: 8px 10px;
  }

  .summary {
    display: flex;
    gap: 6px;
    width: 100%;
  }

  .title {
    display: none;
  }

  .meta {
    width: 100%;
    flex-wrap: nowrap;
    gap: 6px;
    overflow: hidden;
  }

  .badge,
  .serial-note,
  .telemetry-note {
    min-height: 28px;
    font-size: 12px;
  }

  .serial-note {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .tool {
    min-height: 30px;
    padding: 0 10px;
    font-size: 12px;
  }

  .primary-tools {
    display: grid;
    grid-template-columns: minmax(74px, 1fr) repeat(6, max-content);
    width: calc(100vw - 20px);
    max-width: calc(100vw - 20px);
    gap: 6px;
    overflow: hidden;
  }

  .baud-control,
  .baud-select {
    width: 100%;
    max-width: none;
  }

  .baud-select {
    min-width: 0;
    min-height: 30px;
    font-size: 12px;
  }

  .advanced-panel {
    top: 12px;
    right: 12px;
    width: calc(100vw - 24px);
    max-height: calc(100vh - 24px);
  }

  .status-grid.summary-grid {
    grid-template-columns: 1fr;
  }

  .panel-links {
    grid-template-columns: 1fr;
  }

  .modal {
    padding: 10px;
  }

  .modal-content {
    max-height: 92vh;
  }

  .modal-header,
  .modal-body {
    padding: 16px;
  }
}

@media (max-width: 480px) {
  .primary-tools {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    overflow: visible;
  }

  .baud-control {
    grid-column: span 2;
  }

  .primary-tools .tool {
    width: 100%;
    padding-inline: 6px;
  }
}