:root {
  --bg: #eaf6ff;
  --bg2: #d8edff;
  --panel: #ffffff;
  --panel-soft: #f4faff;
  --line: #bfdcf4;
  --text: #0d2f4f;
  --muted: #51789c;
  --accent: #39a8ff;
  --accent-2: #1689e6;
  --accent-3: #7bc6ff;
  --danger: #0e79ca;
  --ok: #1fa165;
  --warn: #c77a00;
  --shadow: 0 14px 30px rgba(24, 92, 146, 0.14);
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "Noto Sans SC", "Segoe UI", sans-serif;
  color: var(--text);
  background: radial-gradient(circle at 10% 0%, var(--bg2), transparent 44%),
    linear-gradient(145deg, #eff8ff 0%, var(--bg) 62%, #e4f2ff 100%);
}

.hidden {
  display: none !important;
}

h1,
h2,
h3,
h4,
p {
  margin: 0;
}

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

label {
  font-size: 0.82rem;
  color: var(--muted);
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 9px 11px;
  background: #fff;
  color: var(--text);
  transition: border-color 0.16s ease, box-shadow 0.16s ease;
}

textarea {
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--accent-2);
  box-shadow: 0 0 0 3px rgba(57, 168, 255, 0.2);
}

.btn {
  border: 1px solid var(--accent-2);
  border-radius: 10px;
  padding: 9px 13px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.1s ease, filter 0.18s ease, box-shadow 0.18s ease;
}

.btn:hover {
  filter: brightness(0.98);
  box-shadow: 0 0 0 3px rgba(57, 168, 255, 0.15);
}

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

.btn.feedback-hit {
  box-shadow: 0 0 0 4px rgba(57, 168, 255, 0.22);
}

.btn.primary {
  color: #fff;
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
}

.btn.danger {
  color: #fff;
  background: linear-gradient(120deg, #2796e8, var(--danger));
}

.btn.ghost {
  color: #0f4f7f;
  background: #eaf6ff;
  border-color: #95c9ee;
}

.btn.tiny {
  padding: 6px 9px;
  font-size: 0.8rem;
}

.btn.full {
  width: 100%;
}

.btn.busy,
.btn[aria-busy="true"] {
  cursor: wait;
  opacity: 0.82;
  position: relative;
}

.btn.busy::after,
.btn[aria-busy="true"]::after {
  content: "";
  width: 10px;
  height: 10px;
  margin-left: 7px;
  border-radius: 999px;
  border: 2px solid rgba(255, 255, 255, 0.85);
  border-top-color: rgba(255, 255, 255, 0.25);
  display: inline-block;
  vertical-align: middle;
  animation: spin 0.8s linear infinite;
}

.btn.ghost.busy::after,
.btn.ghost[aria-busy="true"]::after {
  border-color: rgba(21, 95, 150, 0.65);
  border-top-color: rgba(21, 95, 150, 0.2);
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  box-shadow: none;
}

.toast {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 60;
  max-width: 460px;
  border-radius: 12px;
  padding: 11px 14px;
  box-shadow: var(--shadow);
  color: #fff;
  background: rgba(11, 58, 100, 0.92);
}

.login-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.login-card {
  width: min(430px, 100%);
  border-radius: 18px;
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
  padding: 28px;
}

.login-card .eyebrow {
  color: var(--accent-2);
  letter-spacing: 0.13em;
  font-size: 0.78rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.login-card h1 {
  font-size: 1.95rem;
}

.login-card .subtext {
  color: var(--muted);
  margin: 4px 0 14px;
}

.form-error {
  min-height: 20px;
  margin-top: 10px;
  color: var(--danger);
  font-size: 0.86rem;
}

.app-shell {
  padding: 14px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand h2 {
  font-size: 1.1rem;
}

.brand p {
  color: var(--muted);
  font-size: 0.84rem;
}

.brand-pulse {
  width: 12px;
  height: 12px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(57, 168, 255, 0.55);
  animation: pulse 2s infinite;
}

.status-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.lang-inline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 8px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #f4fbff;
}

.lang-inline label {
  margin: 0;
  font-size: 0.78rem;
}

.lang-inline select {
  width: auto;
  min-width: 92px;
  padding: 5px 7px;
  border-radius: 8px;
}

.connect-progress {
  min-width: 180px;
  max-width: 240px;
  flex: 1 1 200px;
  display: grid;
  gap: 5px;
}

.connect-progress-text {
  font-size: 0.76rem;
  color: var(--muted);
}

.connect-progress-track {
  width: 100%;
  height: 7px;
  border-radius: 999px;
  background: #d8ecfd;
  border: 1px solid var(--line);
  overflow: hidden;
}

.connect-progress-bar {
  display: block;
  width: 0;
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent-3), var(--accent-2));
  transition: width 0.18s ease;
}

.connect-progress.error .connect-progress-bar {
  background: linear-gradient(90deg, #f08e8e, #d44f4f);
}

.badge {
  border-radius: 999px;
  padding: 5px 10px;
  font-size: 0.78rem;
  font-weight: 700;
  color: #fff;
}

.badge.danger {
  background: var(--danger);
}

.badge.ok {
  background: var(--ok);
}

.meta {
  font-size: 0.82rem;
  color: var(--muted);
}

.tabs {
  margin-top: 12px;
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 6px;
  background: #f4fbff;
}

.tab {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--text);
  border-radius: 8px;
  padding: 7px 11px;
  cursor: pointer;
}

.tab.active {
  border-color: var(--accent-2);
  background: linear-gradient(120deg, #dff1ff, #cce9ff);
  color: #073e6f;
  font-weight: 700;
}

.panes {
  margin-top: 10px;
}

.pane {
  display: none;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--panel);
  box-shadow: var(--shadow);
  padding: 12px;
}

.pane.active {
  display: block;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

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

.card-lite {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel-soft);
  padding: 10px;
}

.note {
  margin-top: 8px;
  font-size: 0.82rem;
  color: var(--muted);
}

.stack-gap {
  display: grid;
  gap: 9px;
}

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

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

.check-inline {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin: 0;
}

.check-inline input {
  width: auto;
  margin: 0;
}

.display-grid {
  margin-top: 10px;
  display: grid;
  gap: 10px;
  grid-template-columns: minmax(280px, 340px) minmax(0, 1fr) minmax(210px, 240px);
}

.display-left {
  display: grid;
  gap: 10px;
}

.display-subsection {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 8px;
  background: #fff;
}

.sub-title {
  font-size: 0.88rem;
  font-weight: 700;
  margin-bottom: 2px;
}

.sub-note {
  color: var(--muted);
  font-size: 0.76rem;
  margin-bottom: 7px;
}

.mode-list {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 9px;
  display: grid;
  gap: 6px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  max-height: 340px;
  overflow: auto;
}

.mode-list legend {
  color: var(--muted);
  font-size: 0.8rem;
  padding: 0 4px;
  white-space: nowrap;
}

.mode-list label {
  font-size: 0.8rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
  white-space: nowrap;
}

.mode-list label span {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
}

.mode-list input {
  width: auto;
  margin: 0;
}

.toggle-grid {
  margin-top: 8px;
  display: grid;
  gap: 6px;
}

.field-grid {
  margin-top: 8px;
  display: grid;
  gap: 6px;
  grid-template-columns: auto 1fr;
  align-items: center;
}

.frame-grid {
  margin-top: 8px;
  display: grid;
  gap: 6px;
  grid-template-columns: auto 1fr;
  align-items: center;
}

.display-center {
  min-width: 0;
}

.terminal-toolbar {
  display: grid;
  gap: 8px;
  grid-template-columns: auto auto minmax(180px, 1fr);
  align-items: center;
}

.terminal-settings {
  margin-top: 8px;
  display: grid;
  gap: 7px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  align-items: center;
}

.terminal-output {
  margin-top: 8px;
  border: 1px solid #102c45;
  border-radius: 10px;
  background: #081827;
  color: #bfe5ff;
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1.38;
  min-height: 320px;
  max-height: 62vh;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
  overflow-wrap: anywhere;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  padding: 10px;
}

.terminal-theme-row {
  margin-top: 8px;
  display: grid;
  gap: 7px;
  grid-template-columns: auto minmax(0, 160px) auto 64px auto 64px auto;
  align-items: center;
}

.terminal-theme-row input[type="color"] {
  width: 100%;
  min-width: 0;
  border-radius: 8px;
  padding: 2px;
  height: 34px;
}

.terminal-footer-status {
  margin-top: 10px;
  display: grid;
  gap: 14px;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) minmax(0, 2fr);
  align-items: center;
  padding: 10px 12px;
}

.terminal-footer-status span {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 7px;
  min-width: 0;
}

.terminal-footer-status strong {
  font-size: 0.8rem;
  color: var(--muted);
}

.terminal-footer-status em {
  margin: 0;
  font-style: normal;
  font-family: var(--mono);
  color: #0e4b7d;
  font-size: 0.86rem;
}

.terminal-footer-status span + span {
  border-left: 1px dashed #b3d5ef;
  padding-left: 12px;
}

.terminal-footer-status .status-port em {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.terminal-output mark {
  color: #062a48;
  background: #ffef88;
  border-radius: 3px;
  padding: 0 1px;
}

.log-rx {
  color: #8ad2ff;
}

.log-tx {
  color: #ffd6a3;
}

.log-sys {
  color: #c8d6e4;
}

.log-trg {
  color: #fff1a8;
}

.log-hit {
  text-shadow: 0 0 0 transparent;
}

.display-right h4 {
  margin-bottom: 8px;
}

.status-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.status-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  font-size: 0.86rem;
  padding: 2px 0;
  cursor: help;
}

.status-list li > span:first-child {
  min-width: 0;
}

.status-long {
  max-width: 140px;
  text-align: right;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.indicator {
  width: 13px;
  height: 13px;
  border-radius: 999px;
  background: #a9bfd2;
  box-shadow: inset 0 0 0 2px rgba(0, 0, 0, 0.16);
}

.indicator.on {
  background: var(--ok);
}

.indicator.warn {
  background: var(--warn);
}

.indicator.err {
  background: var(--danger);
}

.value {
  font-family: var(--mono);
  color: #124774;
}

.port-grid {
  margin-top: 10px;
  display: grid;
  gap: 8px;
  grid-template-columns: 140px minmax(0, 1fr);
  align-items: center;
}

.port-shell {
  margin-top: 10px;
  display: grid;
  gap: 10px;
}

.port-actions {
  margin-top: 8px;
  row-gap: 8px;
}

#portDisplayName[readonly] {
  background: #f2f8fe;
  color: #2a5578;
}

#signalReadback {
  margin-top: 8px;
  font-family: var(--mono);
  font-size: 0.77rem;
}

.action-status {
  margin-top: 6px;
  display: inline-block;
  min-height: 18px;
}

.sub-title[title] {
  cursor: help;
}

.modal-shell {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: grid;
  place-items: center;
  background: rgba(8, 24, 39, 0.4);
  padding: 16px;
}

.modal-card {
  width: min(460px, 100%);
  border-radius: 14px;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  padding: 14px;
  display: grid;
  gap: 10px;
}

.modal-progress {
  min-width: 0;
  max-width: 100%;
}

.send-grid {
  margin-top: 10px;
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.macro-list {
  max-height: 220px;
  overflow: auto;
  display: grid;
  gap: 7px;
}

.macro-card {
  border: 1px solid var(--line);
  border-radius: 9px;
  background: #fff;
  padding: 7px;
  display: grid;
  gap: 6px;
}

.macro-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 7px;
}

.macro-meta {
  font-family: var(--mono);
  color: var(--muted);
  font-size: 0.75rem;
}

.trigger-list {
  margin-top: 10px;
  display: grid;
  gap: 8px;
}

.trigger-card {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel-soft);
  padding: 9px;
  display: grid;
  gap: 6px;
}

.trigger-head {
  display: grid;
  gap: 7px;
  grid-template-columns: minmax(0, 1fr) auto auto;
  align-items: center;
}

.modern-grid {
  margin-top: 10px;
  display: grid;
  gap: 10px;
  grid-template-columns: minmax(220px, 300px) minmax(0, 1fr);
}

.metric {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  margin-top: 7px;
  font-size: 0.9rem;
}

.metric strong {
  font-family: var(--mono);
  color: #0f5285;
}

.history-list {
  margin-top: 8px;
  display: grid;
  gap: 7px;
  max-height: 260px;
  overflow: auto;
}

.history-item {
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 7px;
  background: #fff;
  display: grid;
  gap: 5px;
}

.history-meta {
  font-family: var(--mono);
  font-size: 0.73rem;
  color: var(--muted);
}

@media (max-width: 1220px) {
  .display-grid {
    grid-template-columns: minmax(250px, 310px) minmax(0, 1fr);
  }

  .display-right {
    grid-column: span 2;
  }

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

@media (max-width: 900px) {
  .topbar,
  .status-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .display-grid,
  .send-grid,
  .modern-grid {
    grid-template-columns: 1fr;
  }

  .display-right {
    grid-column: auto;
  }

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

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

  .terminal-theme-row {
    grid-template-columns: 1fr;
  }

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

  .terminal-footer-status span + span {
    border-left: 0;
    border-top: 1px dashed #b3d5ef;
    padding-left: 0;
    padding-top: 8px;
  }

  .terminal-toolbar {
    grid-template-columns: 1fr;
  }

  .mode-list {
    grid-template-columns: 1fr;
  }

  .field-grid,
  .frame-grid {
    grid-template-columns: 1fr;
  }

  .action-row,
  .inline-grid {
    grid-template-columns: 1fr;
  }
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(57, 168, 255, 0.5);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(57, 168, 255, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(57, 168, 255, 0);
  }
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}