:root {
  --page: #efedf5;
  --surface: #ffffff;
  --surface-soft: #f8f7fc;
  --text: #2f2b3d;
  --muted: #7b758c;
  --line: #e7e3ee;
  --primary: #696cff;
  --primary-soft: #ebe9ff;
  --brand-green: #063f39;
  --brand-orange: #ff9f00;
  --brand-green-soft: #e8f3f1;
  --cyan: #03c3ec;
  --green: #71dd37;
  --amber: #ffab00;
  --red: #ff3e1d;
  --purple: #8592a3;
  --safe: #2fb344;
  --moderate: #ffab00;
  --caution: #ff7a1a;
  --dangerous: #ff3e1d;
  --shadow: 0 4px 18px rgba(47, 43, 61, 0.08);
  --sidebar-width: 260px;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--page);
  color: var(--text);
  font-family: Inter, "Segoe UI", Arial, sans-serif;
  line-height: 1.45;
  letter-spacing: 0;
}

button,
input {
  font: inherit;
}

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
  gap: 24px;
  padding: 18px 24px 24px;
}

.sidebar {
  position: sticky;
  top: 18px;
  align-self: start;
  height: calc(100vh - 36px);
  overflow-y: auto;
  background: var(--surface);
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: 20px 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  font-size: 24px;
  font-weight: 800;
  margin: 0 8px 22px;
}

.brand-mark,
.tile-icon {
  display: inline-grid;
  place-items: center;
  width: 34px;
  aspect-ratio: 1;
  border-radius: 8px;
  flex: 0 0 auto;
}

.brand-mark {
  overflow: hidden;
  background: #063f39;
}

.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.tile-icon svg,
.icon-button svg,
.more-button svg,
.hero-meta svg,
.ring-metrics svg,
.nav-link svg,
.search-box svg,
.avatar svg {
  width: 18px;
  height: 18px;
  stroke-width: 2;
}

.nav-menu {
  display: grid;
  gap: 4px;
}

.mobile-menu-toggle {
  display: none;
  place-items: center;
  width: 42px;
  aspect-ratio: 1;
  border: 0;
  border-radius: 8px;
  color: var(--brand-orange);
  background: var(--brand-green);
  cursor: pointer;
}

.mobile-menu-toggle[hidden] {
  display: none !important;
}

.mobile-menu-toggle:hover {
  background: #0b5b52;
}

.mobile-menu-toggle svg {
  width: 22px;
  height: 22px;
}

.nav-section {
  margin: 22px 12px 8px;
  color: #b0aabf;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.nav-link {
  position: relative;
  min-height: 42px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 8px;
  color: var(--muted);
  text-decoration: none;
  font-weight: 650;
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
}

.nav-link:hover {
  color: var(--brand-green);
  background: var(--brand-green-soft);
}

.nav-link strong {
  margin-left: auto;
  min-width: 24px;
  min-height: 24px;
  display: inline-grid;
  place-items: center;
  border-radius: 999px;
  background: var(--brand-orange);
  color: #fff;
  font-size: 12px;
}

.nav-link.active {
  color: #fff;
  background: linear-gradient(90deg, var(--brand-green), #0b5b52);
  box-shadow: 0 4px 14px rgba(6, 63, 57, 0.28);
  transform: translateX(2px);
}

.nav-link.active svg {
  color: var(--brand-orange);
}

.nav-link.active strong {
  background: var(--brand-orange);
  color: var(--brand-green);
}

.main-area {
  min-width: 0;
}

.topbar {
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  background: rgba(255, 255, 255, 0.92);
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: 12px 18px;
  margin-bottom: 22px;
  backdrop-filter: blur(12px);
}

.search-box {
  min-width: 220px;
  max-width: 520px;
  flex: 1 1 360px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
}

.search-box input {
  width: 100%;
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--text);
}

.search-box kbd {
  padding: 3px 7px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: #a29cb2;
  background: #fbfafc;
  font-size: 12px;
  cursor: pointer;
  user-select: none;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.icon-button,
.more-button {
  display: inline-grid;
  place-items: center;
  border: 0;
  color: var(--muted);
  background: transparent;
  cursor: pointer;
  border-radius: 8px;
}

.icon-button {
  position: relative;
  width: 34px;
  aspect-ratio: 1;
}

.more-button {
  width: 30px;
  aspect-ratio: 1;
}

.icon-button:hover,
.more-button:hover {
  background: var(--surface-soft);
  color: var(--primary);
}

.avatar {
  position: relative;
  display: inline-grid;
  place-items: center;
  width: 38px;
  aspect-ratio: 1;
  border-radius: 999px;
  color: var(--primary);
  background: var(--primary-soft);
}

.last-updated {
  color: var(--muted);
  font-size: 13px;
  white-space: nowrap;
}

.avatar span {
  position: absolute;
  right: 0;
  bottom: 1px;
  width: 10px;
  aspect-ratio: 1;
  border: 2px solid var(--surface);
  border-radius: 999px;
  background: var(--green);
}

.notification-button.alerting {
  color: #ffffff;
  background: var(--dangerous);
}

.notification-button.alerting:hover {
  color: #ffffff;
  background: #d92d20;
}

.notification-badge {
  position: absolute;
  top: -4px;
  right: -4px;
  min-width: 18px;
  height: 18px;
  display: inline-grid;
  place-items: center;
  border: 2px solid var(--surface);
  border-radius: 999px;
  color: #ffffff;
  background: var(--brand-orange);
  font-size: 10px;
  font-weight: 850;
  line-height: 1;
}

.notification-badge[hidden] {
  display: none;
}

.chat-toggle {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 30;
  display: inline-grid;
  place-items: center;
  width: 58px;
  aspect-ratio: 1;
  border: 0;
  border-radius: 999px;
  color: #ffffff;
  background: var(--brand-green);
  box-shadow: 0 10px 28px rgba(6, 63, 57, 0.28);
  cursor: pointer;
}

.chat-toggle:hover {
  background: #0b5b52;
}

.chat-toggle svg,
.chat-form button svg {
  width: 22px;
  height: 22px;
}

.chat-panel {
  position: fixed;
  right: 24px;
  bottom: 94px;
  z-index: 30;
  width: min(380px, calc(100vw - 32px));
  height: min(560px, calc(100vh - 126px));
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 18px 48px rgba(47, 43, 61, 0.2);
}

.chat-panel[hidden] {
  display: none;
}

.chat-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px;
  border-bottom: 1px solid var(--line);
  background: #fbfafc;
}

.chat-panel-head .eyebrow {
  margin-bottom: 2px;
}

.chat-messages {
  min-height: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow-y: auto;
  padding: 16px;
  background: var(--surface-soft);
}

.chat-message {
  max-width: 86%;
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 14px;
  line-height: 1.45;
  white-space: pre-wrap;
}

.chat-message.assistant {
  align-self: flex-start;
  color: var(--text);
  background: #ffffff;
  border: 1px solid var(--line);
}

.chat-message.user {
  align-self: flex-end;
  color: #ffffff;
  background: var(--brand-green);
}

.chat-message.status {
  align-self: center;
  color: var(--muted);
  background: transparent;
  border: 0;
  font-size: 13px;
}

.chat-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 42px;
  gap: 8px;
  padding: 12px;
  border-top: 1px solid var(--line);
  background: var(--surface);
}

.chat-form input {
  min-width: 0;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  outline: 0;
  padding: 0 12px;
  color: var(--text);
  background: #ffffff;
}

.chat-form input:focus {
  border-color: var(--brand-green);
  box-shadow: 0 0 0 3px rgba(6, 63, 57, 0.12);
}

.chat-form button {
  display: inline-grid;
  place-items: center;
  width: 42px;
  aspect-ratio: 1;
  border: 0;
  border-radius: 8px;
  color: #ffffff;
  background: var(--brand-orange);
  cursor: pointer;
}

.chat-form button:disabled,
.chat-form input:disabled {
  cursor: wait;
  opacity: 0.7;
}

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

.hero-row,
.aqi-row,
.side-metrics-grid,
.analytics-grid {
  display: grid;
  gap: 18px;
}

.hero-row {
  grid-template-columns: minmax(320px, 1.35fr) repeat(3, minmax(170px, 0.55fr));
  align-items: start;
}

.aqi-row {
  grid-template-columns: minmax(0, 1.35fr) minmax(380px, 0.85fr);
  align-items: stretch;
}

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

.analytics-grid {
  grid-template-columns: minmax(300px, 0.7fr) minmax(300px, 0.7fr) minmax(0, 1.4fr);
  align-items: stretch;
}

.card {
  min-width: 0;
  background: var(--surface);
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: 20px;
}

.search-highlight {
  outline: 3px solid rgba(255, 159, 0, 0.48);
  box-shadow: 0 8px 26px rgba(255, 159, 0, 0.2), var(--shadow);
}

.hero-card {
  min-height: 0;
  height: 230px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 78px;
  gap: 8px;
  align-items: center;
  overflow: hidden;
}

.hero-copy {
  min-width: 0;
}

.eyebrow {
  display: block;
  margin-bottom: 6px;
  color: var(--primary);
  font-size: 13px;
  font-weight: 750;
}

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

h1,
h2,
p,
dl {
  margin: 0;
}

h1 {
  font-size: clamp(30px, 3.4vw, 54px);
  line-height: 1.04;
  font-weight: 800;
}

h2 {
  font-size: 18px;
  line-height: 1.2;
  font-weight: 750;
}

.hero-message {
  max-width: 640px;
  margin-top: 8px;
  color: var(--muted);
  font-weight: 550;
}

.hero-meta {
  display: grid;
  grid-template-columns: minmax(152px, 1.1fr) minmax(152px, 1.1fr) minmax(136px, 0.95fr);
  align-items: center;
  gap: 8px;
  margin-top: 14px;
  max-width: 100%;
}

.hero-meta span:nth-child(3) {
  margin-left: 8px;
}

.hero-meta span {
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr);
  grid-template-rows: auto auto;
  align-items: center;
  column-gap: 8px;
  row-gap: 3px;
  min-height: 58px;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--muted);
  background: #fbfafc;
}

.hero-meta svg {
  grid-row: 1 / 3;
}

.hero-meta small {
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  line-height: 1;
  min-width: 0;
}

.hero-meta strong {
  color: var(--text);
  font-size: 12px;
  line-height: 1.1;
  white-space: nowrap;
  min-width: 0;
  overflow: visible;
  text-overflow: clip;
}

.hero-visual {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 112px;
  transform: translate(-6px, -14px);
}

.shield-orbit {
  position: relative;
  z-index: 1;
  width: 86px;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border-radius: 999px;
  color: var(--risk-color, var(--muted));
  background:
    radial-gradient(circle, #ffffff 0 43%, transparent 44%),
    conic-gradient(from 120deg, var(--risk-color, var(--muted)), var(--risk-soft, var(--surface-soft)), var(--risk-color, var(--muted)));
}

.shield-orbit svg {
  width: 36px;
  height: 36px;
  stroke-width: 2.25;
}

.mini-sensor {
  position: absolute;
  width: 28px;
  aspect-ratio: 1;
  border-radius: 8px;
  background: var(--surface-soft);
  border: 1px solid var(--line);
}

.mini-sensor.one {
  right: 2px;
  top: 10px;
}

.mini-sensor.two {
  left: 0;
  bottom: 16px;
}

.mini-sensor.three {
  right: 28px;
  bottom: 0;
  width: 22px;
  background: var(--risk-soft, var(--primary-soft));
}

.hero-visual.safe {
  --risk-color: var(--safe);
  --risk-soft: #edfbe8;
}

.hero-visual.moderate {
  --risk-color: var(--moderate);
  --risk-soft: #fff4d9;
}

.hero-visual.caution {
  --risk-color: var(--caution);
  --risk-soft: #fff0e4;
}

.hero-visual.dangerous {
  --risk-color: var(--dangerous);
  --risk-soft: #ffe7e1;
}

.hero-visual.neutral {
  --risk-color: var(--muted);
  --risk-soft: var(--surface-soft);
}

.score-card {
  min-height: 0;
  height: 230px;
}

.metric-tile {
  min-height: 170px;
  display: grid;
  grid-template-rows: auto 1fr auto auto;
  align-content: start;
}

.card-head,
.card-title {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.tile-icon.green {
  color: #39a91c;
  background: #edfbe8;
}

.tile-icon.red {
  color: var(--red);
  background: #ffe7e1;
}

.tile-icon.purple {
  color: var(--primary);
  background: var(--primary-soft);
}

.tile-icon.amber {
  color: var(--amber);
  background: #fff4d9;
}

.tile-icon.violet {
  color: var(--primary);
  background: var(--primary-soft);
}

.tile-icon.cyan {
  color: var(--cyan);
  background: #e5faff;
}

.tile-icon.orange {
  color: #ff7a1a;
  background: #fff0e4;
}

.tile-icon.blue {
  color: #0aa6cf;
  background: #e5faff;
}

.score-card .tile-label,
.metric-tile p {
  margin-top: 16px;
  color: var(--muted);
  font-size: 15px;
  font-weight: 800;
}

.score-card strong,
.metric-tile strong {
  display: block;
  margin-top: 6px;
  font-size: 28px;
  line-height: 1.1;
  font-weight: 850;
}

.side-metrics-grid > .metric-tile:not(.combo-tile) {
  padding: 22px;
}

.side-metrics-grid > .metric-tile:not(.combo-tile) .tile-icon {
  width: 42px;
}

.side-metrics-grid > .metric-tile:not(.combo-tile) p {
  margin-top: 20px;
  color: var(--text);
  font-size: 18px;
  font-weight: 850;
}

.side-metrics-grid > .metric-tile:not(.combo-tile) strong {
  margin-top: 8px;
  font-size: 36px;
  letter-spacing: 0;
}

.side-metrics-grid > .metric-tile:not(.combo-tile) .delta {
  margin-top: 12px;
  font-size: 14px;
}

.combo-tile {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  align-items: start;
  column-gap: 14px;
}

.combo-values {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.combo-values p {
  margin-top: 0;
}

.combo-values strong {
  font-size: 24px;
}

.delta {
  display: inline-flex;
  align-items: center;
  min-height: 22px;
  margin-top: 10px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.delta.safe {
  color: var(--safe);
}

.delta.moderate {
  color: var(--moderate);
}

.delta.caution {
  color: var(--caution);
}

.delta.dangerous {
  color: var(--dangerous);
}

.status-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 28px;
  padding: 5px 10px;
  border-radius: 999px;
  background: var(--surface-soft);
  color: var(--muted);
  font-size: 12px;
  font-weight: 750;
  white-space: nowrap;
}

.status-pill.safe {
  color: var(--safe);
  background: #edfbe8;
}

.status-pill.moderate {
  color: #9d6a00;
  background: #fff4d9;
}

.status-pill.caution {
  color: #b8520e;
  background: #fff0e4;
}

.status-pill.dangerous {
  color: var(--dangerous);
  background: #ffe7e1;
}

.status-pill.neutral {
  color: var(--muted);
  background: var(--surface-soft);
}

.chart-card.wide {
  min-height: 420px;
}

canvas {
  display: block;
  width: 100%;
  height: 300px;
  margin-top: 14px;
}

.riskTrendChart,
#riskTrendChart {
  height: 300px;
}

.ring-card {
  min-height: 420px;
  text-align: center;
}

.year-select {
  width: max-content;
  margin-left: auto;
  padding: 8px 14px;
  border-radius: 8px;
  color: var(--primary);
  background: var(--primary-soft);
  font-weight: 750;
}

.score-ring {
  --progress: 0deg;
  width: min(210px, 68vw);
  aspect-ratio: 1;
  margin: 28px auto 18px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  background:
    radial-gradient(circle, var(--surface) 0 56%, transparent 57%),
    conic-gradient(var(--primary) var(--progress), #ebe8f1 0);
}

.score-ring span {
  display: block;
  font-size: 34px;
  font-weight: 800;
}

.score-ring small {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 13px;
}

.ring-caption {
  color: var(--muted);
}

.ring-caption strong {
  color: var(--text);
}

.ring-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 28px;
}

.ring-metrics span {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  grid-template-rows: auto auto;
  align-items: center;
  column-gap: 10px;
  padding: 12px;
  border-radius: 8px;
  background: var(--surface-soft);
  text-align: left;
}

.ring-metrics svg {
  grid-row: 1 / 3;
  color: var(--primary);
}

.ring-metrics strong {
  font-size: 16px;
}

.ring-metrics small {
  color: var(--muted);
  font-size: 12px;
}

.quick-list,
.history-card,
.trend-card {
  min-height: 300px;
}

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

.summary-list div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 34px;
  padding-bottom: 11px;
  border-bottom: 1px dashed var(--line);
}

.summary-list div:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: grid;
  place-items: center;
  padding: 18px;
  background: rgba(47, 43, 61, 0.36);
  backdrop-filter: blur(6px);
}

.modal-backdrop[hidden] {
  display: none;
}

.device-modal,
.alert-modal {
  width: min(430px, 100%);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 18px 44px rgba(47, 43, 61, 0.24);
  padding: 20px;
}

.alert-modal {
  width: min(760px, 100%);
  max-height: min(720px, calc(100vh - 36px));
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr);
}

.modal-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.device-list {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.alert-summary {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 18px;
}

.alert-summary span {
  min-width: 0;
  display: grid;
  gap: 4px;
  padding: 12px;
  border-radius: 8px;
  background: var(--surface-soft);
}

.alert-summary small {
  color: var(--muted);
  font-size: 12px;
  font-weight: 750;
}

.alert-summary strong {
  font-size: 16px;
  overflow-wrap: anywhere;
}

.alert-list {
  min-height: 0;
  display: grid;
  align-content: start;
  gap: 12px;
  margin-top: 18px;
  overflow-y: auto;
}

.alert-item {
  display: grid;
  gap: 10px;
  border: 1px solid var(--line);
  border-left: 4px solid var(--caution);
  border-radius: 8px;
  padding: 14px;
  background: #fbfafc;
  cursor: pointer;
}

.alert-item.dangerous {
  border-left-color: var(--dangerous);
}

.alert-item.is-read {
  opacity: 0.72;
  background: var(--surface-soft);
}

.alert-item:focus-visible {
  outline: 3px solid rgba(17, 126, 112, 0.22);
  outline-offset: 2px;
}

.alert-item-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.alert-item-status {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.read-pill {
  display: inline-flex;
  align-items: center;
  min-height: 22px;
  border-radius: 999px;
  padding: 0 8px;
  color: var(--muted);
  background: var(--surface);
  border: 1px solid var(--line);
  font-size: 11px;
  font-weight: 800;
}

.alert-item.is-unread .read-pill {
  color: #ffffff;
  border-color: var(--brand-orange);
  background: var(--brand-orange);
}

.alert-item h3 {
  margin: 0;
  font-size: 16px;
}

.alert-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 14px;
  color: var(--muted);
  font-size: 13px;
}

.alert-meta strong,
.alert-recipients strong {
  color: var(--text);
}

.alert-recipients,
.alert-recommendation {
  color: var(--muted);
  font-size: 13px;
  overflow-wrap: anywhere;
}

.alert-recommendation {
  padding-top: 10px;
  border-top: 1px dashed var(--line);
}

.device-option {
  width: 100%;
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--text);
  background: #fbfafc;
  cursor: pointer;
  font-weight: 800;
}

.device-option:hover {
  border-color: var(--brand-green);
  background: var(--brand-green-soft);
}

.device-option.active {
  border-color: var(--brand-green);
  color: #fff;
  background: var(--brand-green);
}

.device-option small {
  color: inherit;
  opacity: 0.78;
  font-size: 12px;
}

.device-form {
  display: grid;
  gap: 8px;
  margin-top: 18px;
}

.device-form label {
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.device-form div {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
}

.device-form input {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--text);
  outline: 0;
}

.device-form input:focus {
  border-color: var(--brand-green);
  box-shadow: 0 0 0 3px rgba(6, 63, 57, 0.12);
}

.device-form button {
  border: 0;
  border-radius: 8px;
  padding: 10px 14px;
  color: #fff;
  background: var(--brand-green);
  cursor: pointer;
  font-weight: 800;
}

dt {
  color: var(--muted);
  font-size: 13px;
  font-weight: 650;
}

dd {
  margin: 0;
  font-weight: 750;
  text-align: right;
  overflow-wrap: anywhere;
}

.trend-card {
  grid-column: span 1;
}

.history-card {
  grid-column: 1 / -1;
}

.table-wrap {
  margin-top: 14px;
  overflow-x: auto;
}

table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
}

th,
td {
  padding: 13px 10px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  font-size: 14px;
}

th {
  color: var(--muted);
  font-size: 12px;
  font-weight: 750;
  text-transform: uppercase;
}

.empty-cell {
  color: var(--muted);
  text-align: center;
}

@media (max-width: 1180px) {
  .app-shell {
    grid-template-columns: 86px minmax(0, 1fr);
    gap: 18px;
  }

  .sidebar {
    padding: 18px 10px;
  }

  .brand span:last-child,
  .nav-link span,
  .nav-section {
    display: none;
  }

  .brand {
    justify-content: center;
    margin-inline: 0;
  }

  .nav-link {
    justify-content: center;
  }

  .nav-link strong {
    position: absolute;
    transform: translate(16px, -16px);
    margin-left: 0;
  }

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

  .hero-card {
    grid-column: 1 / -1;
  }

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

  .chart-card.wide,
  .trend-card {
    grid-column: 1 / -1;
  }
}

@media (max-width: 900px) {
  .app-shell {
    display: block;
    padding: 12px;
  }

  .sidebar {
    position: static;
    height: auto;
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 14px 16px;
    overflow: visible;
  }

  .nav-menu {
    display: none;
    width: 100%;
    grid-template-columns: 1fr;
    gap: 6px;
    order: 3;
    padding-top: 12px;
    border-top: 1px solid var(--line);
  }

  .sidebar.menu-open {
    flex-wrap: wrap;
  }

  .sidebar.menu-open .nav-menu {
    display: grid;
  }

  .mobile-menu-toggle {
    display: inline-grid;
  }

  .brand {
    margin: 0;
    justify-content: flex-start;
    font-size: 21px;
  }

  .brand span:last-child,
  .nav-link span,
  .nav-section {
    display: inline;
  }

  .nav-section {
    margin: 14px 12px 6px;
  }

  .nav-link {
    justify-content: flex-start;
  }

  .nav-link strong {
    position: static;
    transform: none;
    margin-left: auto;
  }

  .topbar,
  .topbar-actions {
    flex-wrap: wrap;
  }

  .search-box {
    flex-basis: 100%;
  }

  .hero-row,
  .aqi-row,
  .side-metrics-grid,
  .analytics-grid {
    grid-template-columns: 1fr;
  }

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

  .hero-visual {
    display: none;
  }

  .chart-card.wide,
  .trend-card,
  .history-card {
    grid-column: auto;
  }
}

@media (max-width: 560px) {
  .topbar {
    padding: 12px;
  }

  .card {
    padding: 16px;
  }

  .hero-meta {
    display: grid;
    grid-template-columns: 1fr;
  }

  .hero-meta span:nth-child(3) {
    margin-left: 0;
  }

  .side-metrics-grid {
    gap: 12px;
  }

  .combo-tile,
  .combo-values {
    grid-template-columns: 1fr;
  }

  canvas {
    height: 240px;
  }

  .chat-toggle {
    right: 16px;
    bottom: 16px;
  }

  .chat-panel {
    right: 16px;
    bottom: 84px;
    width: calc(100vw - 32px);
    height: min(520px, calc(100vh - 110px));
  }

  .alert-summary,
  .alert-meta {
    grid-template-columns: 1fr;
  }
}