:root {
  --moon: #f2f4ef;
  --paper: #fbfcf8;
  --ink: #17363b;
  --ink-soft: #557076;
  --celadon: #4f7c72;
  --celadon-pale: #dfeae4;
  --sunlight: #e5a43a;
  --sunlight-pale: #f8ead0;
  --wire: #2f6f91;
  --wire-pale: #e0edf3;
  --danger: #c64738;
  --danger-pale: #f8dfdb;
  --line: #cbd8d2;
  --line-strong: #9fb6ad;
  --shadow: 0 22px 60px rgba(23, 54, 59, 0.09);
  --radius: 22px;
  --font-display: STKaiti, KaiTi, "Kaiti SC", serif;
  --font-body: "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-data: SFMono-Regular, Consolas, "Liberation Mono", monospace;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  color-scheme: light;
  background: var(--moon);
  overflow-x: hidden;
}

body {
  position: relative;
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(rgba(47, 111, 145, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(47, 111, 145, 0.035) 1px, transparent 1px),
    var(--moon);
  background-size: 32px 32px;
  font-family: var(--font-body);
  line-height: 1.5;
  overflow-x: hidden;
}

button,
select,
input {
  font: inherit;
}

button,
select,
a {
  -webkit-tap-highlight-color: transparent;
}

button:focus-visible,
select:focus-visible,
input:focus-visible,
a:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid rgba(47, 111, 145, 0.42);
  outline-offset: 3px;
}

button:disabled,
select:disabled,
input:disabled {
  cursor: not-allowed;
  opacity: 0.46;
}

.icon-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.page-atmosphere {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
}

.season-orbit {
  position: absolute;
  border: 1px solid rgba(79, 124, 114, 0.16);
  border-radius: 50%;
}

.orbit-one {
  top: -28rem;
  right: -18rem;
  width: 58rem;
  height: 58rem;
}

.orbit-two {
  bottom: -22rem;
  left: -26rem;
  width: 50rem;
  height: 50rem;
}

.masthead,
main,
footer {
  width: min(1500px, calc(100% - 48px));
  margin-inline: auto;
}

.masthead {
  position: relative;
  display: grid;
  grid-template-columns: minmax(320px, 0.9fr) minmax(540px, 1.1fr);
  gap: 32px;
  align-items: end;
  padding: 38px 0 24px;
}

.brand-block {
  display: flex;
  min-width: 0;
  gap: 18px;
  align-items: center;
}

.season-seal {
  display: grid;
  flex: 0 0 62px;
  width: 62px;
  height: 62px;
  place-content: center;
  border: 1px solid var(--ink);
  border-radius: 50% 50% 47% 53%;
  color: var(--paper);
  background: var(--ink);
  box-shadow: inset 0 0 0 4px var(--moon), inset 0 0 0 5px var(--ink);
  font-family: var(--font-display);
  font-size: 15px;
  line-height: 1.05;
  text-align: center;
  transform: rotate(-4deg);
}

.season-seal span {
  display: block;
}

.eyebrow,
.section-kicker {
  margin: 0 0 5px;
  color: var(--celadon);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 5px;
  font-family: var(--font-display);
  font-size: clamp(31px, 3.1vw, 50px);
  font-weight: 600;
  letter-spacing: 0.03em;
  line-height: 1.08;
}

h1 span {
  font-family: var(--font-body);
  font-size: 0.46em;
  font-weight: 650;
  letter-spacing: 0.06em;
  vertical-align: 0.22em;
}

.brand-note {
  margin: 0;
  color: var(--ink-soft);
  font-size: 14px;
}

.connection-bar {
  display: flex;
  min-width: 0;
  gap: 18px;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border: 1px solid rgba(23, 54, 59, 0.12);
  border-radius: 18px;
  background: rgba(251, 252, 248, 0.82);
  box-shadow: 0 10px 32px rgba(23, 54, 59, 0.06);
  backdrop-filter: blur(14px);
}

.status-cluster,
.connection-actions,
.plain-actions,
.segmented-control,
.select-action {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.status-pill {
  display: inline-flex;
  min-height: 30px;
  align-items: center;
  gap: 7px;
  padding: 5px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-soft);
  background: var(--moon);
  font-size: 12px;
  font-weight: 650;
  white-space: nowrap;
}

.status-pill::before {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--line-strong);
  content: "";
}

.status-pill[data-state="connected"],
.status-pill[data-state="real"] {
  color: #315d53;
  border-color: #a9c6ba;
  background: #e5f0ea;
}

.status-pill[data-state="connected"]::before,
.status-pill[data-state="real"]::before {
  background: var(--celadon);
}

.status-pill[data-state="mock"] {
  color: #7a5618;
  border-color: #e8c981;
  background: var(--sunlight-pale);
}

.status-pill[data-state="mock"]::before {
  background: var(--sunlight);
}

.status-pill[data-state="offline"],
.status-pill[data-state="error"] {
  color: #8a2f27;
  border-color: #e1aaa3;
  background: var(--danger-pale);
}

.status-pill[data-state="offline"]::before,
.status-pill[data-state="error"]::before {
  background: var(--danger);
}

.frame-time {
  color: var(--ink-soft);
  font-size: 12px;
  white-space: nowrap;
}

.frame-time time {
  font-family: var(--font-data);
  color: var(--ink);
}

.button,
.connection-actions button,
.control-group button {
  min-height: 40px;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  padding: 8px 13px;
  color: var(--ink);
  background: var(--paper);
  cursor: pointer;
  font-size: 13px;
  font-weight: 650;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.button:not(:disabled):hover,
.connection-actions button:not(:disabled):hover,
.control-group button:not(:disabled):hover {
  border-color: var(--wire);
  transform: translateY(-1px);
}

.button-primary {
  color: white;
  border-color: var(--ink);
  background: var(--ink);
}

.button-secondary {
  color: white;
  border-color: var(--celadon);
  background: var(--celadon);
}

.button-quiet {
  color: var(--ink-soft);
  background: transparent;
}

.browser-message {
  grid-column: 2;
  margin: -18px 0 0;
  padding: 9px 13px;
  border-left: 3px solid var(--danger);
  color: #7f312a;
  background: var(--danger-pale);
  font-size: 13px;
}

.mock-ribbon {
  position: absolute;
  right: 0;
  bottom: -14px;
  z-index: 5;
  padding: 7px 13px;
  border: 1px solid #ddb967;
  border-radius: 999px;
  color: #775316;
  background: #fff2cf;
  box-shadow: 0 8px 22px rgba(117, 82, 22, 0.13);
  font-size: 12px;
  font-weight: 750;
}

main {
  display: grid;
  gap: 18px;
  padding-bottom: 36px;
}

.panel {
  min-width: 0;
  border: 1px solid rgba(23, 54, 59, 0.12);
  border-radius: var(--radius);
  background: rgba(251, 252, 248, 0.93);
  box-shadow: var(--shadow);
}

.alert-notice {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  align-items: center;
  min-height: 112px;
  padding: 18px 22px;
  border-left: 6px solid var(--line-strong);
  box-shadow: 0 12px 34px rgba(23, 54, 59, 0.06);
}

.alert-notice.is-safe {
  border-left-color: var(--celadon);
  background: linear-gradient(100deg, #f2f8f4 0%, rgba(251, 252, 248, 0.96) 55%);
}

.alert-notice.is-danger {
  border-color: rgba(198, 71, 56, 0.42);
  border-left-color: var(--danger);
  background: linear-gradient(100deg, var(--danger-pale) 0%, #fff7f5 56%);
  box-shadow: 0 16px 42px rgba(198, 71, 56, 0.13);
}

.alert-symbol {
  display: grid;
  width: 54px;
  height: 54px;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  color: var(--ink-soft);
  font-family: var(--font-display);
  font-size: 27px;
}

.is-safe .alert-symbol {
  color: var(--celadon);
  border-color: var(--celadon);
}

.is-danger .alert-symbol {
  color: white;
  border-color: var(--danger);
  background: var(--danger);
}

.alert-copy h2 {
  margin: 0 0 3px;
  font-size: 20px;
}

.alert-copy > p:last-of-type {
  margin: 0;
  color: var(--ink-soft);
  font-size: 14px;
}

.alert-list {
  display: grid;
  gap: 8px;
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
}

.alert-list li {
  display: grid;
  grid-template-columns: minmax(110px, auto) 1fr;
  gap: 7px 14px;
  padding-top: 10px;
  border-top: 1px solid rgba(198, 71, 56, 0.18);
  font-size: 13px;
}

.alert-list strong {
  color: #872e26;
}

.alert-list span {
  color: var(--ink-soft);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.42fr) minmax(390px, 0.78fr);
  gap: 18px;
  align-items: stretch;
}

.house-card,
.season-card,
.data-panel,
.control-panel,
.device-panel,
.threshold-panel,
.actuator-test-panel,
.voice-panel,
.log-panel {
  padding: 22px;
}

.actuator-test-intro {
  margin: -5px 0 16px;
  color: var(--ink-soft);
  font-size: 12px;
}

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

.actuator-test-card {
  display: grid;
  gap: 12px;
  min-width: 0;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: #f9fbf7;
}

.actuator-test-card[data-control="manual"],
.actuator-test-card[data-control="pulse"] {
  border-color: rgba(229, 164, 58, 0.58);
  background: var(--sunlight-pale);
}

.actuator-test-card header {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 10px;
}

.actuator-test-card h3,
.actuator-test-card p {
  margin: 0;
}

.actuator-test-card h3 {
  font-size: 14px;
}

.actuator-test-card header p {
  color: var(--ink-soft);
  font-size: 10px;
}

.actuator-test-card header span {
  padding: 3px 7px;
  border-radius: 999px;
  color: var(--celadon);
  background: var(--celadon-pale);
  font-size: 9px;
  font-weight: 750;
  white-space: nowrap;
}

.actuator-test-card[data-control="manual"] header span,
.actuator-test-card[data-control="pulse"] header span {
  color: #765117;
  background: rgba(229, 164, 58, 0.18);
}

.actuator-test-card > strong {
  font-family: var(--font-data);
  font-size: 16px;
}

.actuator-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  align-self: end;
}

.actuator-actions button {
  min-height: 34px;
  border: 1px solid var(--line-strong);
  border-radius: 9px;
  padding: 6px 9px;
  color: var(--ink);
  background: var(--paper);
  cursor: pointer;
  font-size: 10px;
  font-weight: 700;
}

.actuator-actions button[data-actuator-auto] {
  color: var(--celadon);
  border-color: var(--celadon);
}

.actuator-actions button:hover:not(:disabled) {
  border-color: var(--celadon);
  transform: translateY(-1px);
}

.servo-unlock {
  display: flex;
  gap: 8px;
  align-items: start;
  color: var(--ink-soft);
  font-size: 10px;
  line-height: 1.4;
}

.servo-unlock input {
  margin-top: 1px;
  accent-color: var(--celadon);
}

.actuator-test-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.actuator-test-footer p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 11px;
}

.actuator-test-footer .button {
  flex: 0 0 auto;
}

.section-heading {
  display: flex;
  min-width: 0;
  align-items: start;
  justify-content: space-between;
  gap: 16px;
}

.section-heading h2,
.season-copy h2 {
  margin: 0;
  font-size: 22px;
  line-height: 1.2;
}

.compact-heading {
  align-items: center;
  margin-bottom: 16px;
}

.house-heading {
  margin-bottom: 16px;
}

.mode-badge,
.control-lock,
.truth-note,
.live-dot {
  padding: 5px 9px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-soft);
  background: var(--moon);
  font-size: 11px;
  font-weight: 700;
  white-space: nowrap;
}

.mode-badge.is-auto {
  color: #755016;
  border-color: #e4c27a;
  background: var(--sunlight-pale);
}

.mode-badge.is-sleep {
  color: #265e78;
  border-color: #9ec1d2;
  background: var(--wire-pale);
}

.live-dot.is-live {
  color: #315d53;
  border-color: #aac8bb;
  background: #e5f0ea;
}

.house-shell {
  position: relative;
  min-height: 550px;
  border: 1px solid var(--line-strong);
  border-radius: 18px;
  background:
    linear-gradient(rgba(47, 111, 145, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(47, 111, 145, 0.045) 1px, transparent 1px),
    #f7faf7;
  background-size: 24px 24px;
  overflow: hidden;
}

.house-shell::before,
.house-shell::after {
  position: absolute;
  z-index: 0;
  border: 1px solid rgba(47, 111, 145, 0.18);
  border-radius: 50%;
  content: "";
  pointer-events: none;
}

.house-shell::before {
  top: -170px;
  right: -130px;
  width: 380px;
  height: 380px;
}

.house-shell::after {
  bottom: -110px;
  left: -90px;
  width: 270px;
  height: 270px;
}

.airflow-map {
  position: absolute;
  inset: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.airflow-path {
  fill: none;
  stroke: rgba(79, 124, 114, 0.3);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-dasharray: 5 9;
}

.house-shell.is-live .airflow-path {
  animation: airflow 8s linear infinite;
}

.house-shell.is-danger .airflow-path {
  stroke: rgba(198, 71, 56, 0.55);
  animation-duration: 2.8s;
}

@keyframes airflow {
  to { stroke-dashoffset: -84; }
}

.house-plan {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr 1.25fr 1.25fr 1.1fr;
  grid-template-rows: 1.15fr 0.9fr 0.85fr;
  gap: 9px;
  min-height: 550px;
  padding: 17px;
}

.room {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto 1fr auto;
  gap: 3px 9px;
  min-width: 0;
  padding: 13px;
  border: 1px solid rgba(23, 54, 59, 0.18);
  border-radius: 13px 13px 10px 10px;
  background: rgba(251, 252, 248, 0.9);
  box-shadow: 0 8px 20px rgba(23, 54, 59, 0.055);
  transition: border-color 180ms ease, background 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.room::after {
  position: absolute;
  right: 10px;
  bottom: -2px;
  width: 30px;
  height: 4px;
  border-radius: 4px 4px 0 0;
  background: var(--line-strong);
  content: "";
}

.room h3 {
  margin: 0;
  font-size: 14px;
  line-height: 1.25;
}

.room p,
.room span {
  margin: 0;
  color: var(--ink-soft);
  font-size: 10px;
  line-height: 1.35;
}

.room strong {
  grid-column: 1 / -1;
  align-self: end;
  font-family: var(--font-data);
  font-size: 12px;
}

.room > span {
  grid-column: 1 / -1;
  font-size: 10px;
  font-weight: 650;
}

.room-icon {
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border-radius: 9px;
  color: var(--celadon);
  background: var(--celadon-pale);
}

.room-icon svg,
.device-icon svg,
.house-heart svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.season-mark {
  font-family: var(--font-display);
  font-size: 18px;
}

.room.is-mode-active {
  border-color: rgba(47, 111, 145, 0.52);
  background: rgba(229, 241, 246, 0.96);
  box-shadow: 0 10px 24px rgba(47, 111, 145, 0.11);
}

.room.is-mode-active::after {
  background: var(--wire);
}

.room.is-mode-flash {
  animation: mode-flash 2.2s ease-out 1;
}

@keyframes mode-flash {
  0%, 35% { transform: translateY(-2px); box-shadow: 0 0 0 5px rgba(47, 111, 145, 0.2), 0 14px 30px rgba(47, 111, 145, 0.18); }
  100% { transform: none; }
}

.room.is-alert {
  border-color: var(--danger);
  color: #7f2e27;
  background: #fff1ee;
  box-shadow: 0 0 0 3px rgba(198, 71, 56, 0.12), 0 12px 28px rgba(198, 71, 56, 0.12);
}

.room.is-alert::after {
  background: var(--danger);
}

.room.is-alert .room-icon {
  color: white;
  background: var(--danger);
}

.room-master { grid-column: 1 / 3; grid-row: 1; }
.room-living { grid-column: 3 / 5; grid-row: 1 / 3; }
.room-study { grid-column: 5; grid-row: 1; }
.room-balcony { grid-column: 1; grid-row: 2; }
.room-dining { grid-column: 2; grid-row: 2; }
.room-kitchen { grid-column: 5; grid-row: 2; }
.room-entry { grid-column: 1 / 3; grid-row: 3; }
.room-bath { grid-column: 3 / 6; grid-row: 3; }

.house-heart {
  position: absolute;
  top: 49%;
  left: 62%;
  z-index: 4;
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 4px solid #f7faf7;
  border-radius: 50%;
  color: white;
  background: var(--ink);
  box-shadow: 0 9px 24px rgba(23, 54, 59, 0.24);
  transform: translate(-50%, -50%);
}

.house-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 13px;
  color: var(--ink-soft);
  font-size: 11px;
}

.house-legend span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.legend-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.legend-dot.is-active { background: var(--wire); }
.legend-dot.is-monitoring { background: var(--celadon); }
.legend-dot.is-alert { background: var(--danger); }

.overview-column {
  display: grid;
  grid-template-rows: auto 1fr;
  gap: 18px;
  min-width: 0;
}

.season-card {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  overflow: hidden;
  color: white;
  border-color: var(--ink);
  background: var(--ink);
}

.season-card::after {
  position: absolute;
  right: -60px;
  bottom: -115px;
  width: 260px;
  height: 260px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 50%;
  content: "";
}

.season-name {
  display: grid;
  width: 70px;
  height: 90px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: var(--sunlight-pale);
  font-family: var(--font-display);
  font-size: 38px;
  line-height: 1;
  writing-mode: vertical-rl;
}

.season-card .section-kicker {
  color: #b9d0c8;
}

.season-copy h2 {
  color: #fff9e9;
  font-family: var(--font-display);
  font-size: 30px;
}

.season-copy > p:last-child {
  margin: 7px 0 0;
  color: #c5d5d1;
  font-size: 13px;
}

.strategy-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-column: 1 / -1;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin: 4px 0 0;
}

.strategy-grid div {
  padding: 10px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.055);
}

.strategy-grid dt {
  color: #a8bfba;
  font-size: 10px;
}

.strategy-grid dd {
  margin: 3px 0 0;
  color: white;
  font-family: var(--font-data);
  font-size: 14px;
  font-weight: 700;
}

.data-panel {
  display: flex;
  flex-direction: column;
}

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

.metric {
  position: relative;
  display: grid;
  grid-template-rows: auto auto 1fr;
  min-width: 0;
  padding: 13px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #f8faf6;
}

.metric-code {
  position: absolute;
  top: 10px;
  right: 10px;
  color: rgba(23, 54, 59, 0.22);
  font-family: var(--font-data);
  font-size: 20px;
  font-weight: 800;
}

.metric p {
  margin: 0 28px 9px 0;
  color: var(--ink-soft);
  font-size: 11px;
}

.metric strong {
  align-self: center;
  min-width: 0;
  font-family: var(--font-data);
  font-size: clamp(18px, 2vw, 27px);
  line-height: 1.15;
  overflow-wrap: anywhere;
}

.metric small {
  align-self: end;
  margin-top: 8px;
  color: var(--ink-soft);
  font-size: 9px;
  line-height: 1.35;
}

.metric-small strong {
  font-size: 21px;
}

.operation-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: 18px;
}

.threshold-intro {
  margin: -5px 0 16px;
  color: var(--ink-soft);
  font-size: 12px;
}

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

.threshold-card {
  min-width: 0;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: #f9fbf7;
}

.threshold-card[data-state="high"],
.threshold-card[data-state="low"] {
  border-color: rgba(229, 164, 58, 0.55);
  background: var(--sunlight-pale);
}

.threshold-card-safety[data-state="high"] {
  border-color: rgba(198, 71, 56, 0.55);
  background: var(--danger-pale);
}

.threshold-card header,
.fixed-rule-card header {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 10px;
}

.threshold-card h3,
.threshold-card header p,
.fixed-rule-heading h3,
.fixed-rule-heading p,
.fixed-rule-card h3,
.fixed-rule-card p {
  margin: 0;
}

.threshold-card h3,
.fixed-rule-heading h3,
.fixed-rule-card h3 {
  font-size: 14px;
}

.threshold-card header p,
.fixed-rule-card p {
  color: var(--ink-soft);
  font-size: 10px;
}

.threshold-card header > span,
.fixed-rule-card header > span {
  padding: 3px 7px;
  border-radius: 999px;
  color: var(--celadon);
  background: var(--celadon-pale);
  font-size: 9px;
  font-weight: 700;
  white-space: nowrap;
}

.threshold-reading {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  grid-template-rows: auto auto;
  gap: 1px 8px;
  align-items: center;
  margin: 15px 0 9px;
  text-align: center;
}

.threshold-reading strong {
  font-family: var(--font-data);
  font-size: 20px;
  overflow-wrap: anywhere;
}

.threshold-reading b {
  grid-row: 1 / 3;
  grid-column: 2;
  color: var(--wire);
  font-size: 17px;
}

.threshold-reading span {
  color: var(--ink-soft);
  font-size: 9px;
}

.threshold-conclusion {
  min-height: 32px;
  margin: 0 0 12px;
  padding: 7px 9px;
  border-left: 3px solid var(--celadon);
  color: var(--ink-soft);
  background: rgba(79, 124, 114, 0.07);
  font-size: 11px;
}

.threshold-card[data-state="high"] .threshold-conclusion,
.threshold-card[data-state="low"] .threshold-conclusion {
  border-left-color: var(--sunlight);
  color: #765117;
  background: rgba(229, 164, 58, 0.1);
}

.threshold-card-safety[data-state="high"] .threshold-conclusion {
  border-left-color: var(--danger);
  color: #812f28;
  background: rgba(198, 71, 56, 0.09);
}

.threshold-editor {
  display: grid;
  gap: 8px;
}

.threshold-editor > input[type="range"] {
  width: 100%;
  accent-color: var(--celadon);
}

.threshold-editor > div {
  display: grid;
  grid-template-columns: minmax(70px, 1fr) auto auto;
  gap: 7px;
  align-items: center;
}

.threshold-editor input[type="number"] {
  min-width: 0;
  height: 38px;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  padding: 6px 8px;
  color: var(--ink);
  background: var(--paper);
}

.threshold-editor span,
.threshold-card > small,
.fixed-rule-card small {
  color: var(--ink-soft);
  font-size: 9px;
}

.threshold-editor button,
.threshold-extra button {
  min-height: 38px;
  border: 1px solid var(--celadon);
  border-radius: 10px;
  padding: 6px 10px;
  color: white;
  background: var(--celadon);
  cursor: pointer;
  font-size: 11px;
  font-weight: 700;
}

.threshold-card > small {
  display: block;
  min-height: 27px;
  margin-top: 10px;
}

.threshold-extra {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 10px;
  align-items: center;
  margin-top: 10px;
  color: var(--ink-soft);
  font-size: 9px;
}

.threshold-extra button {
  min-height: 30px;
  margin-left: auto;
  padding: 4px 8px;
  color: var(--celadon);
  background: transparent;
}

.fixed-rule-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 15px;
  margin: 22px 0 10px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.fixed-rule-heading p {
  color: var(--ink-soft);
  font-size: 10px;
}

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

.fixed-rule-card {
  min-width: 0;
  padding: 14px;
  border: 1px solid rgba(198, 71, 56, 0.22);
  border-radius: 13px;
  background: #fff9f7;
}

.fixed-rule-card > strong {
  display: block;
  margin: 12px 0 6px;
  font-family: var(--font-data);
  font-size: 15px;
}

.fixed-rule-card small {
  display: block;
  margin-top: 9px;
  color: #872e26;
  font-weight: 700;
}

.control-groups {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr 1.25fr;
  gap: 10px;
}

.control-group {
  min-width: 0;
  margin: 0;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 14px;
}

.control-group legend {
  padding: 0 5px;
  color: var(--celadon);
  font-size: 11px;
  font-weight: 750;
  letter-spacing: 0.08em;
}

.control-group p {
  margin: 10px 0 0;
  color: var(--ink-soft);
  font-size: 11px;
}

.control-group p strong {
  color: var(--ink);
}

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

.segmented-control button[aria-pressed="true"] {
  color: white;
  border-color: var(--ink);
  background: var(--ink);
}

.select-action {
  align-items: stretch;
}

.select-action select {
  min-width: 110px;
  flex: 1;
  min-height: 40px;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  padding: 7px 30px 7px 10px;
  color: var(--ink);
  background: var(--paper);
}

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

.command-status {
  display: flex;
  gap: 11px;
  align-items: center;
  margin-top: 13px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: var(--moon);
}

.command-mark {
  flex: 0 0 10px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--line-strong);
}

.command-status strong,
.command-status small {
  display: block;
}

.command-status strong {
  font-size: 13px;
}

.command-status small {
  margin-top: 2px;
  color: var(--ink-soft);
  font-size: 10px;
}

.command-status[data-state="complete"] .command-mark { background: var(--celadon); }
.command-status[data-state="waiting_ack"] .command-mark,
.command-status[data-state="accepted_waiting_telemetry"] .command-mark { background: var(--sunlight); }
.command-status[data-state="rejected"] .command-mark,
.command-status[data-state="timeout"] .command-mark { background: var(--danger); }

.voice-panel {
  position: relative;
  overflow: hidden;
}

.voice-panel::after {
  position: absolute;
  top: -72px;
  right: -50px;
  width: 230px;
  height: 230px;
  border: 1px solid rgba(47, 111, 145, 0.1);
  border-radius: 50%;
  content: "";
  pointer-events: none;
}

.voice-support {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 5px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-soft);
  background: var(--moon);
  font-size: 10px;
  font-weight: 700;
}

.voice-support[data-state="ready"] {
  color: var(--celadon);
  border-color: rgba(79, 124, 114, 0.35);
  background: var(--celadon-pale);
}

.voice-support[data-state="unsupported"] {
  color: #7d5520;
  border-color: rgba(229, 164, 58, 0.38);
  background: var(--sunlight-pale);
}

.voice-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(310px, 0.75fr);
  gap: 12px;
  margin-top: 16px;
}

.voice-action-card,
.voice-text-card {
  min-width: 0;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #f8faf6;
}

.voice-command-copy {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 13px;
  align-items: center;
}

.voice-command-copy h3,
.voice-command-copy p,
.voice-text-card label,
.voice-text-card small,
.voice-safety-note,
.voice-status p,
.voice-status small {
  margin: 0;
}

.voice-command-copy h3 {
  font-size: 15px;
}

.voice-command-copy p {
  margin-top: 3px;
  color: var(--ink-soft);
  font-size: 11px;
}

.voice-orb {
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  border: 1px solid rgba(47, 111, 145, 0.28);
  border-radius: 50%;
  color: var(--wire);
  background: var(--wire-pale);
}

.voice-orb svg {
  width: 23px;
  height: 23px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.7;
}

.voice-orb.is-listening {
  color: white;
  border-color: var(--danger);
  background: var(--danger);
  animation: voice-listening 1.4s ease-in-out infinite;
}

.voice-actions,
.voice-text-action {
  display: flex;
  gap: 8px;
  margin-top: 13px;
}

.voice-safety-note {
  margin-top: 11px;
  padding-top: 10px;
  border-top: 1px dashed var(--line-strong);
  color: var(--ink-soft);
  font-size: 10px;
}

.voice-text-card {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.voice-text-card label {
  color: var(--celadon);
  font-size: 11px;
  font-weight: 750;
  letter-spacing: 0.08em;
}

.voice-text-action input {
  min-width: 0;
  min-height: 40px;
  flex: 1;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  padding: 8px 11px;
  color: var(--ink);
  background: var(--paper);
}

.voice-text-card small {
  margin-top: 8px;
  color: var(--ink-soft);
  font-size: 9px;
}

.voice-status {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 11px;
  align-items: center;
  margin-top: 12px;
  padding: 13px 15px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--moon);
}

.voice-status-mark {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--line-strong);
}

.voice-status strong,
.voice-status p,
.voice-status small {
  display: block;
}

.voice-status strong {
  font-size: 13px;
}

.voice-status p {
  margin-top: 2px;
  color: var(--ink-soft);
  font-size: 11px;
}

.voice-status p span {
  color: var(--ink);
  font-family: var(--font-data);
}

.voice-status small {
  margin-top: 2px;
  color: var(--ink-soft);
  font-size: 10px;
}

.voice-status[data-state="starting"] .voice-status-mark,
.voice-status[data-state="listening"] .voice-status-mark,
.voice-status[data-state="recognized"] .voice-status-mark,
.voice-status[data-state="sending"] .voice-status-mark,
.voice-status[data-state="waiting_ack"] .voice-status-mark,
.voice-status[data-state="accepted_waiting_telemetry"] .voice-status-mark,
.voice-status[data-state="stopping"] .voice-status-mark {
  background: var(--sunlight);
}

.voice-status[data-state="complete"] .voice-status-mark {
  background: var(--celadon);
}

.voice-status[data-state="unknown"] .voice-status-mark,
.voice-status[data-state="not_sent"] .voice-status-mark,
.voice-status[data-state="send_error"] .voice-status-mark,
.voice-status[data-state="rejected"] .voice-status-mark,
.voice-status[data-state="timeout"] .voice-status-mark,
.voice-status[data-state="recognition_error"] .voice-status-mark,
.voice-status[data-state="unsupported"] .voice-status-mark {
  background: var(--danger);
}

@keyframes voice-listening {
  0%, 100% { box-shadow: 0 0 0 0 rgba(198, 71, 56, 0.28); }
  50% { box-shadow: 0 0 0 10px rgba(198, 71, 56, 0); }
}

.device-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 9px;
}

.device {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 11px;
  align-items: center;
  min-width: 0;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: #f8faf6;
}

.device:last-child {
  grid-column: 1 / -1;
}

.device-icon {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border-radius: 11px;
  color: var(--celadon);
  background: var(--celadon-pale);
}

.rgb-icon::after {
  width: 16px;
  height: 16px;
  border: 2px solid white;
  border-radius: 50%;
  background: var(--line-strong);
  box-shadow: 0 0 0 1px var(--line-strong);
  content: "";
}

.rgb-icon[data-rgb="yellow"]::after { background: var(--sunlight); box-shadow: 0 0 0 1px var(--sunlight), 0 0 16px rgba(229, 164, 58, 0.5); }
.rgb-icon[data-rgb="orange"]::after { background: #f0782b; box-shadow: 0 0 0 1px #f0782b, 0 0 16px rgba(240, 120, 43, 0.5); }
.rgb-icon[data-rgb="red"]::after { background: var(--danger); box-shadow: 0 0 0 1px var(--danger), 0 0 16px rgba(198, 71, 56, 0.48); }
.rgb-icon[data-rgb="off"]::after { background: #83928e; }

.device p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 11px;
}

.device strong,
.device small {
  display: block;
  min-width: 0;
  overflow-wrap: anywhere;
}

.device strong {
  margin: 2px 0;
  font-family: var(--font-data);
  font-size: 14px;
}

.device small {
  color: var(--ink-soft);
  font-size: 9px;
}

.log-panel {
  min-height: 190px;
}

.text-button {
  border: 0;
  padding: 6px;
  color: var(--wire);
  background: transparent;
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
}

.run-log {
  display: grid;
  gap: 0;
  max-height: 260px;
  margin: 0;
  padding: 0;
  overflow-y: auto;
  list-style: none;
  scrollbar-color: var(--line-strong) transparent;
}

.run-log li {
  display: grid;
  grid-template-columns: 76px 76px minmax(0, 1fr);
  gap: 9px;
  align-items: baseline;
  padding: 9px 0;
  border-top: 1px solid var(--line);
  font-size: 11px;
}

.run-log time {
  color: var(--ink-soft);
  font-family: var(--font-data);
}

.run-log p {
  min-width: 0;
  margin: 0;
  overflow-wrap: anywhere;
}

.log-type {
  display: inline-block;
  width: fit-content;
  padding: 2px 7px;
  border-radius: 999px;
  color: var(--wire);
  background: var(--wire-pale);
  font-family: var(--font-data);
  font-size: 9px;
  font-weight: 750;
}

.log-type.is-error {
  color: #862f27;
  background: var(--danger-pale);
}

footer {
  display: flex;
  gap: 16px;
  justify-content: space-between;
  padding: 0 0 34px;
  color: var(--ink-soft);
  font-size: 11px;
}

footer p {
  margin: 0;
}

footer code {
  font-family: var(--font-data);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

[hidden] {
  display: none !important;
}

@media (max-width: 1120px) {
  .masthead {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .browser-message {
    grid-column: 1;
    margin-top: -16px;
  }

  .connection-bar {
    width: 100%;
  }

  .hero-grid,
  .operation-grid {
    grid-template-columns: 1fr;
  }

  .overview-column {
    grid-template-columns: minmax(300px, 0.7fr) minmax(0, 1.3fr);
    grid-template-rows: auto;
  }

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

@media (max-width: 760px) {
  .masthead,
  main,
  footer {
    width: min(100% - 28px, 1500px);
  }

  .connection-bar,
  footer {
    align-items: stretch;
    flex-direction: column;
  }

  .connection-actions button {
    flex: 1;
  }

  .overview-column,
  .control-groups,
  .threshold-grid,
  .actuator-test-grid,
  .voice-layout {
    grid-template-columns: 1fr;
  }

  .house-plan {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-template-rows: repeat(4, minmax(118px, auto));
  }

  .room-master,
  .room-living,
  .room-study,
  .room-balcony,
  .room-dining,
  .room-kitchen,
  .room-entry,
  .room-bath {
    grid-column: auto;
    grid-row: auto;
  }

  .house-heart,
  .airflow-map {
    display: none;
  }

  .house-shell,
  .house-plan {
    min-height: 0;
  }
}

@media (max-width: 620px) {
  .masthead,
  main,
  footer {
    width: min(100% - 20px, 1500px);
  }

  .masthead {
    gap: 22px;
    padding-top: 24px;
  }

  .season-seal {
    flex-basis: 50px;
    width: 50px;
    height: 50px;
    font-size: 12px;
  }

  h1 {
    font-size: 30px;
  }

  h1 span {
    display: block;
    margin-top: 7px;
    font-size: 14px;
    vertical-align: 0;
  }

  .connection-bar,
  .alert-notice,
  .house-card,
  .season-card,
  .data-panel,
  .control-panel,
  .device-panel,
  .threshold-panel,
  .actuator-test-panel,
  .voice-panel,
  .log-panel {
    border-radius: 17px;
  }

  .connection-bar {
    padding: 13px;
  }

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

  .status-pill,
  .frame-time {
    min-width: 0;
    white-space: normal;
  }

  .mock-ribbon {
    right: 10px;
  }

  .alert-notice {
    grid-template-columns: 1fr;
    padding: 17px;
  }

  .alert-symbol {
    width: 42px;
    height: 42px;
    font-size: 21px;
  }

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

  .house-card,
  .season-card,
  .data-panel,
  .control-panel,
  .device-panel,
  .threshold-panel,
  .actuator-test-panel,
  .voice-panel,
  .log-panel {
    padding: 16px;
  }

  .house-plan {
    grid-template-columns: 1fr;
    grid-template-rows: none;
    padding: 10px;
  }

  .room {
    min-height: 108px;
  }

  .season-card,
  .metric-grid,
  .device-grid,
  .actuator-test-grid,
  .fixed-rule-grid {
    grid-template-columns: 1fr;
  }

  .season-name {
    width: 58px;
    height: 62px;
    font-size: 28px;
    writing-mode: horizontal-tb;
  }

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

  .metric {
    min-height: 120px;
  }

  .device:last-child {
    grid-column: auto;
  }

  .plain-actions,
  .segmented-control,
  .voice-actions,
  .voice-text-action {
    grid-template-columns: 1fr;
  }

  .voice-actions,
  .voice-text-action {
    display: grid;
  }

  .plain-actions button,
  .segmented-control button,
  .select-action select,
  .select-action button {
    width: 100%;
  }

  .threshold-editor > div {
    grid-template-columns: 1fr auto;
  }

  .threshold-editor > div button {
    grid-column: 1 / -1;
    width: 100%;
  }

  .fixed-rule-heading {
    align-items: start;
    flex-direction: column;
  }

  .actuator-test-footer {
    align-items: stretch;
    flex-direction: column;
  }

  .actuator-test-footer .button {
    width: 100%;
  }

  .voice-actions button,
  .voice-text-action input,
  .voice-text-action button {
    width: 100%;
  }

  .run-log li {
    grid-template-columns: 64px 62px minmax(0, 1fr);
    gap: 6px;
  }

  footer {
    gap: 5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}