:root {
  --bg: #f4f7fb;
  --bg-soft: #edf2fa;
  --panel: rgba(255, 255, 255, 0.86);
  --panel-strong: rgba(255, 255, 255, 0.96);
  --panel-soft: rgba(245, 248, 255, 0.82);
  --line: rgba(89, 111, 152, 0.14);
  --line-strong: rgba(89, 111, 152, 0.26);
  --text: #1d2838;
  --muted: #68788f;
  --accent: #5a78ff;
  --accent-soft: rgba(90, 120, 255, 0.14);
  --success: #2ea97f;
  --success-soft: rgba(46, 169, 127, 0.14);
  --warning: #f2a94a;
  --warning-soft: rgba(242, 169, 74, 0.16);
  --danger: #de6170;
  --danger-soft: rgba(222, 97, 112, 0.14);
  --body-font: "Plus Jakarta Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  --mono-font: "JetBrains Mono", "Consolas", monospace;
}

:root[data-theme="dark"] {
  --bg: #101726;
  --bg-soft: #162033;
  --panel: rgba(26, 35, 52, 0.84);
  --panel-strong: rgba(24, 32, 48, 0.94);
  --panel-soft: rgba(32, 43, 64, 0.82);
  --line: rgba(182, 196, 226, 0.14);
  --line-strong: rgba(182, 196, 226, 0.26);
  --text: #f4f7ff;
  --muted: #a8b4c9;
  --accent: #91a7ff;
  --accent-soft: rgba(145, 167, 255, 0.16);
  --success: #78d8b2;
  --success-soft: rgba(120, 216, 178, 0.16);
  --warning: #ffcb72;
  --warning-soft: rgba(255, 203, 114, 0.18);
  --danger: #ff92a1;
  --danger-soft: rgba(255, 146, 161, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: var(--body-font);
  background:
    radial-gradient(circle at top left, rgba(90, 120, 255, 0.16), transparent 26%),
    radial-gradient(circle at bottom right, rgba(92, 208, 184, 0.12), transparent 24%),
    linear-gradient(180deg, var(--bg-soft) 0%, var(--bg) 100%);
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: auto;
  width: 320px;
  height: 320px;
  border-radius: 999px;
  pointer-events: none;
  filter: blur(18px);
  opacity: 0.8;
  z-index: 0;
}

body::before {
  top: -120px;
  right: -80px;
  background: rgba(90, 120, 255, 0.12);
}

body::after {
  bottom: -140px;
  left: -100px;
  background: rgba(92, 208, 184, 0.1);
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

input,
select {
  width: 100%;
  padding: 14px 16px;
  border-radius: 18px;
  border: 1px solid var(--line);
  outline: none;
  color: var(--text);
  background: rgba(255, 255, 255, 0.62);
}

:root[data-theme="dark"] input,
:root[data-theme="dark"] select {
  background: rgba(12, 18, 30, 0.42);
}

input:focus,
select:focus {
  border-color: var(--line-strong);
}

.app-shell {
  position: relative;
  z-index: 1;
  width: min(1380px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 40px;
}

.topbar,
.workspace {
  min-width: 0;
}

.topbar-card,
.auth-card,
.overview-panel,
.hint-box,
.device-card,
.device-section,
.info-tile,
.status-panel,
.history-item,
.alarm-chip,
.active-alarm-row,
.sub-card,
.pin-form,
.remote-canvas-shell,
.metric-cell,
.device-quick-chip,
.signal-stack {
  border: 1px solid var(--line);
  background: var(--panel);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow:
    0 18px 50px rgba(24, 39, 75, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.42);
}

:root[data-theme="dark"] .topbar-card,
:root[data-theme="dark"] .auth-card,
:root[data-theme="dark"] .overview-panel,
:root[data-theme="dark"] .hint-box,
:root[data-theme="dark"] .device-card,
:root[data-theme="dark"] .device-section,
:root[data-theme="dark"] .info-tile,
:root[data-theme="dark"] .status-panel,
:root[data-theme="dark"] .history-item,
:root[data-theme="dark"] .alarm-chip,
:root[data-theme="dark"] .active-alarm-row,
:root[data-theme="dark"] .sub-card,
:root[data-theme="dark"] .pin-form,
:root[data-theme="dark"] .remote-canvas-shell,
:root[data-theme="dark"] .metric-cell,
:root[data-theme="dark"] .device-quick-chip,
:root[data-theme="dark"] .signal-stack {
  box-shadow:
    0 22px 60px rgba(0, 0, 0, 0.24),
    inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.topbar-card,
.auth-card,
.overview-panel,
.hint-box,
.device-card,
.device-section,
.sub-card,
.pin-form,
.remote-canvas-shell,
.status-panel {
  border-radius: 28px;
}

.info-tile,
.history-item,
.alarm-chip,
.active-alarm-row,
.metric-cell,
.device-quick-chip,
.signal-stack {
  border-radius: 22px;
}

.eyebrow,
.section-tag,
.status-caption {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.mono {
  font-family: var(--mono-font);
}

.topbar-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  padding: 28px;
}

.topbar-copy h1,
.auth-card h2,
.overview-panel h3,
.device-title,
.device-section h4,
.device-section h5 {
  margin: 0;
  letter-spacing: -0.03em;
}

.topbar-copy h1 {
  margin-top: 14px;
  font-size: clamp(2.3rem, 5vw, 4.2rem);
  font-weight: 800;
  line-height: 0.96;
}

.topbar-copy p,
.auth-card p,
.overview-panel p,
.hint-box,
.device-subline,
.device-last-seen,
.history-tip,
.history-empty,
.empty-line,
.section-head p,
.signal-stack small {
  color: var(--muted);
  line-height: 1.7;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.topbar-actions {
  display: grid;
  gap: 12px;
  align-content: start;
  min-width: min(100%, 280px);
}

.status-panel {
  padding: 18px 20px;
}

.status-panel strong {
  display: block;
  margin-top: 12px;
  font-size: 1.05rem;
  font-weight: 700;
}

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

.workspace {
  display: grid;
  gap: 20px;
  padding-top: 20px;
}

.hidden {
  display: none !important;
}

.auth-card {
  width: min(560px, 100%);
  padding: 28px;
}

.auth-form {
  margin-top: 20px;
}

.stack-form,
.device-form,
.inline-form,
.pin-form,
.field-grid,
.compact-stack,
.rgb-grid {
  display: grid;
  gap: 14px;
}

.stack-form label,
.device-form label,
.inline-form label,
.pin-form label,
.field-grid label,
.compact-stack label,
.rgb-grid label,
.mini-field {
  display: grid;
  gap: 8px;
}

.stack-form span,
.device-form span,
.inline-form span,
.pin-form span,
.field-grid span,
.compact-stack span,
.rgb-grid span,
.mini-field span {
  font-size: 0.94rem;
  font-weight: 700;
}

.dashboard-panel {
  display: grid;
  gap: 18px;
}

.overview-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: 1.3fr 0.9fr;
  grid-template-areas:
    "registry metrics"
    "registry workflow";
}

.registry-panel {
  grid-area: registry;
}

.metrics-panel {
  grid-area: metrics;
}

.workflow-panel {
  grid-area: workflow;
}

.overview-panel {
  padding: 24px;
}

.panel-head,
.section-head,
.history-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
}

.panel-head h3,
.section-head h4,
.history-head h4 {
  margin-top: 12px;
}

.compact-head h3,
.section-head.compact h4 {
  margin-top: 10px;
}

.metrics-grid,
.device-info-grid,
.device-grid {
  display: grid;
  gap: 14px;
}

.metrics-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 18px;
}

.metric-cell {
  padding: 18px 20px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.44), rgba(255, 255, 255, 0.18));
}

:root[data-theme="dark"] .metric-cell {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.01));
}

.metric-cell span {
  display: block;
  color: var(--muted);
  font-size: 0.92rem;
}

.metric-cell strong {
  display: block;
  margin-top: 14px;
  font-size: clamp(1.2rem, 3vw, 1.9rem);
  font-weight: 800;
}

.accent-cell {
  background: linear-gradient(135deg, var(--accent-soft), rgba(255, 255, 255, 0.2));
}

.workflow-list {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.workflow-row {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
}

.workflow-row span {
  display: grid;
  place-items: center;
  min-height: 44px;
  border-radius: 16px;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 800;
}

.workflow-row p {
  margin: 0;
}

.hint-box {
  padding: 18px 22px;
}

.device-grid {
  gap: 18px;
}

.device-card {
  overflow: hidden;
}

.device-card-head {
  width: 100%;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, 280px);
  gap: 18px;
  padding: 22px;
  border: none;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.14), transparent);
  color: inherit;
  text-align: left;
  transition: transform 220ms cubic-bezier(0.25, 1, 0.5, 1), opacity 220ms cubic-bezier(0.25, 1, 0.5, 1);
  will-change: transform, opacity;
}

.device-card-head:hover,
.primary-btn:hover,
.secondary-btn:hover,
.ghost-btn:hover,
.chip-btn:hover,
.tool-chip:hover,
.danger-ghost-btn:hover,
.mini-chip:hover {
  transform: translate3d(0, -2px, 0);
  opacity: 0.96;
}

.device-head-main,
.device-head-side {
  display: grid;
  gap: 14px;
  align-content: start;
}

.device-head-top {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.status-pill,
.queue-badge,
.device-toggle,
.mini-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 0.88rem;
  font-weight: 700;
}

.status-pill.online {
  background: var(--success-soft);
  color: var(--success);
}

.status-pill.offline {
  background: var(--warning-soft);
  color: #b97b20;
}

:root[data-theme="dark"] .status-pill.offline {
  color: var(--warning);
}

.queue-badge {
  background: rgba(255, 255, 255, 0.56);
  color: var(--muted);
}

:root[data-theme="dark"] .queue-badge {
  background: rgba(255, 255, 255, 0.05);
}

.queue-badge.active {
  background: var(--accent-soft);
  color: var(--accent);
}

.device-title {
  font-size: clamp(1.35rem, 2.4vw, 2rem);
  font-weight: 800;
}

.device-subline {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin-top: -2px;
}

.device-divider {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--line-strong);
}

.device-quick-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.device-quick-chip {
  padding: 14px 16px;
}

.device-quick-chip span {
  display: block;
  color: var(--muted);
  font-size: 0.82rem;
}

.device-quick-chip strong {
  display: block;
  margin-top: 8px;
  font-size: 0.98rem;
  font-weight: 700;
}

.device-head-side {
  justify-items: stretch;
}

.signal-stack {
  padding: 18px 18px 16px;
  background: linear-gradient(180deg, var(--accent-soft), rgba(255, 255, 255, 0.08));
}

.signal-stack span {
  display: block;
  color: var(--muted);
  font-size: 0.82rem;
}

.signal-stack strong {
  display: block;
  margin-top: 10px;
  font-size: 1.06rem;
  font-weight: 700;
}

.signal-stack small {
  display: block;
  margin-top: 10px;
}

.device-toggle {
  justify-self: start;
  background: var(--panel-soft);
  color: var(--text);
}

.device-card-body {
  display: grid;
  gap: 18px;
  padding: 0 22px 22px;
}

.device-info-grid {
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}

.info-tile {
  padding: 16px;
}

.info-tile span {
  display: block;
  color: var(--muted);
  font-size: 0.82rem;
}

.info-tile strong {
  display: block;
  margin-top: 10px;
  font-size: 1rem;
  font-weight: 700;
  word-break: break-word;
}

.info-tile.emphasis {
  background: linear-gradient(135deg, var(--accent-soft), rgba(255, 255, 255, 0.22));
}

.device-sections {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.device-section {
  padding: 20px;
}

.device-section h5 {
  font-size: 1rem;
}

.device-section.span-2,
.section-history {
  grid-column: span 2;
}

.inline-form {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  margin-top: 18px;
}

.action-grid,
.pin-card-grid,
.field-grid,
.canvas-tools,
.subsection-grid {
  display: grid;
  gap: 12px;
}

.action-grid {
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  margin-top: 14px;
}

.pin-card-grid {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.pin-form {
  padding: 18px;
}

.field-grid {
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  align-items: end;
  margin-top: 16px;
}

.subsection-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 14px;
}

.sub-card {
  padding: 16px;
}

.alarm-stack,
.history-list {
  display: grid;
  gap: 10px;
}

.alarm-chip,
.active-alarm-row {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
  padding: 14px 16px;
}

.active-alarm-row small {
  display: block;
  margin-top: 4px;
  color: var(--muted);
}

.canvas-tools {
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  align-items: end;
}

.remote-canvas-shell {
  margin-top: 14px;
  padding: 16px;
}

.remote-canvas {
  width: 100%;
  display: block;
  border-radius: 18px;
  background: #0a1222;
  touch-action: none;
}

:root[data-theme="light"] .remote-canvas {
  background: #f1f5fd;
}

.rgb-grid {
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  align-items: end;
}

.preset-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px;
}

.history-item {
  padding: 16px;
}

.history-item strong {
  display: block;
  font-size: 0.98rem;
}

.history-item div,
.history-item small {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  line-height: 1.6;
}

.history-item.success {
  border-color: rgba(46, 169, 127, 0.3);
}

.history-item.error {
  border-color: rgba(222, 97, 112, 0.3);
}

.history-tip {
  font-size: 0.88rem;
}

.primary-btn,
.secondary-btn,
.ghost-btn,
.chip-btn,
.tool-chip,
.danger-ghost-btn,
.mini-chip {
  border: none;
  color: var(--text);
  transition: transform 220ms cubic-bezier(0.25, 1, 0.5, 1), opacity 220ms cubic-bezier(0.25, 1, 0.5, 1);
  will-change: transform, opacity;
}

.primary-btn,
.secondary-btn,
.ghost-btn,
.chip-btn,
.tool-chip,
.danger-ghost-btn {
  min-height: 48px;
  padding: 0 18px;
  border-radius: 18px;
  font-weight: 700;
}

.primary-btn {
  background: linear-gradient(135deg, var(--accent), #7b90ff);
  color: #ffffff;
}

.secondary-btn {
  background: rgba(255, 255, 255, 0.62);
}

:root[data-theme="dark"] .secondary-btn {
  background: rgba(255, 255, 255, 0.06);
}

.ghost-btn,
.chip-btn,
.tool-chip {
  background: transparent;
  border: 1px solid var(--line);
}

.ghost-btn.active,
.tool-chip.active {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: transparent;
}

.danger-ghost-btn {
  background: var(--danger-soft);
  color: var(--danger);
}

.toast {
  position: fixed;
  right: 20px;
  bottom: 20px;
  transform: translate3d(0, 18px, 0);
  min-width: 260px;
  max-width: 420px;
  padding: 16px 18px;
  border-radius: 20px;
  border: 1px solid var(--line-strong);
  background: var(--panel-strong);
  box-shadow: 0 20px 50px rgba(20, 31, 56, 0.16);
  opacity: 0;
  pointer-events: none;
  transition: transform 220ms cubic-bezier(0.25, 1, 0.5, 1), opacity 220ms cubic-bezier(0.25, 1, 0.5, 1);
}

.toast.show {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}

@media (max-width: 1180px) {
  .topbar-card,
  .device-card-head,
  .overview-grid {
    grid-template-columns: 1fr;
  }

  .overview-grid {
    grid-template-areas:
      "registry"
      "metrics"
      "workflow";
  }

  .topbar-actions {
    min-width: 0;
  }

  .device-head-side {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: start;
  }
}

@media (max-width: 900px) {
  .app-shell {
    width: min(100%, calc(100% - 24px));
    padding-top: 12px;
  }

  .topbar-card,
  .overview-panel,
  .auth-card,
  .device-section,
  .device-card-body {
    padding-left: 18px;
    padding-right: 18px;
  }

  .device-sections,
  .subsection-grid,
  .metrics-grid,
  .device-quick-list,
  .theme-switch {
    grid-template-columns: 1fr;
  }

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

  .device-section.span-2,
  .section-history {
    grid-column: span 1;
  }
}

@media (max-width: 680px) {
  .app-shell {
    width: min(100%, calc(100% - 16px));
  }

  .topbar-card {
    padding: 20px;
  }

  .topbar-copy h1 {
    font-size: 2.2rem;
  }

  .status-panel,
  .overview-panel,
  .auth-card,
  .device-section,
  .hint-box {
    border-radius: 24px;
  }

  .device-card-head,
  .device-card-body {
    padding: 18px;
  }

  .device-subline,
  .panel-head,
  .section-head,
  .history-head,
  .alarm-chip,
  .active-alarm-row,
  .device-head-side {
    display: grid;
    gap: 12px;
  }

  .action-grid,
  .pin-card-grid,
  .field-grid,
  .canvas-tools,
  .rgb-grid {
    grid-template-columns: 1fr;
  }

  .toast {
    left: 12px;
    right: 12px;
    min-width: 0;
    max-width: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}