:root {
  color-scheme: light;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #112738;
  background: #f3f7f8;
  font-synthesis: none;
  --ink: #112738;
  --muted: #627483;
  --navy: #071c2b;
  --navy-soft: #0c2b3c;
  --aqua: #19b9aa;
  --aqua-dark: #0b756d;
  --blue: #3189d8;
  --coral: #ec6b5f;
  --amber: #d9902f;
  --violet: #7a6de0;
  --line: #dce7e9;
  --surface: rgba(255, 255, 255, 0.94);
  --shadow: 0 18px 50px rgba(17, 39, 56, 0.08);
  --shadow-soft: 0 10px 28px rgba(17, 39, 56, 0.06);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

[hidden] {
  display: none !important;
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 12% 4%, rgba(25, 185, 170, 0.12), transparent 27rem),
    radial-gradient(circle at 95% 23%, rgba(49, 137, 216, 0.1), transparent 28rem),
    linear-gradient(180deg, #f8fbfb 0%, #f1f6f7 48%, #eef4f5 100%);
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -2;
  content: "";
  opacity: 0.22;
  pointer-events: none;
  background-image: radial-gradient(rgba(17, 39, 56, 0.12) 0.7px, transparent 0.7px);
  background-size: 22px 22px;
  mask-image: linear-gradient(to bottom, black, transparent 68%);
}

.ambient {
  position: fixed;
  z-index: -1;
  width: 360px;
  height: 360px;
  border-radius: 999px;
  filter: blur(90px);
  opacity: 0.14;
  pointer-events: none;
}

.ambient-one {
  top: 340px;
  left: -210px;
  background: var(--aqua);
}

.ambient-two {
  top: 860px;
  right: -220px;
  background: var(--blue);
}

button,
input,
select {
  font: inherit;
}

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

svg {
  display: block;
}

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

h2,
h3,
strong {
  letter-spacing: -0.015em;
}

.container {
  width: min(1240px, calc(100% - 40px));
  margin: 0 auto;
  padding: 0 0 34px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 86px;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  text-decoration: none;
}

.brand-mark {
  display: grid;
  flex: 0 0 auto;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 14px;
  color: white;
  background: linear-gradient(135deg, #0f887f, #24c7b4);
  box-shadow: 0 10px 24px rgba(25, 185, 170, 0.24);
}

.brand-mark svg {
  width: 29px;
  height: 29px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.brand-mark svg circle {
  fill: currentColor;
  stroke: none;
}

.brand-mark.small {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  box-shadow: none;
}

.brand-mark.small svg {
  width: 24px;
  height: 24px;
}

.brand > span:last-child {
  display: grid;
  gap: 1px;
}

.brand strong {
  font-size: 16px;
}

.brand small {
  color: #71818d;
  font-size: 12px;
}

.topbar-status,
.topbar-status > * {
  display: flex;
  align-items: center;
}

.topbar-status {
  gap: 10px;
}

.secure-chip {
  gap: 6px;
  color: #5e707d;
  font-size: 12px;
  font-weight: 750;
}

.secure-chip svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: var(--aqua-dark);
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.status-pill {
  min-height: 34px;
  gap: 7px;
  padding: 8px 13px;
  border: 1px solid #d8e3e5;
  border-radius: 999px;
  color: #566b78;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 5px 16px rgba(17, 39, 56, 0.05);
  font-size: 12px;
  font-weight: 800;
  white-space: nowrap;
}

.status-pill::before {
  width: 7px;
  height: 7px;
  content: "";
  border-radius: 999px;
  background: #9aa9b2;
  box-shadow: 0 0 0 4px rgba(154, 169, 178, 0.12);
}

.status-pill[data-level="normal"] {
  color: #116554;
  border-color: #b9e2d8;
  background: #e8f8f3;
}

.status-pill[data-level="normal"]::before {
  background: #1eaf8e;
  box-shadow: 0 0 0 4px rgba(30, 175, 142, 0.13);
}

.status-pill[data-level="warning"] {
  color: #80570e;
  border-color: #ead5a6;
  background: #fff8e6;
}

.status-pill[data-level="warning"]::before {
  background: #d9902f;
  box-shadow: 0 0 0 4px rgba(217, 144, 47, 0.13);
}

.status-pill[data-level="critical"] {
  color: #8c302d;
  border-color: #efc3be;
  background: #fff0ee;
}

.status-pill[data-level="critical"]::before {
  background: #df584f;
  box-shadow: 0 0 0 4px rgba(223, 88, 79, 0.13);
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(350px, 0.75fr);
  gap: 48px;
  align-items: center;
  min-height: 370px;
  margin-bottom: 22px;
  padding: clamp(36px, 5vw, 64px);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 32px;
  color: white;
  background:
    radial-gradient(circle at 82% 16%, rgba(37, 209, 188, 0.2), transparent 19rem),
    radial-gradient(circle at 10% 110%, rgba(49, 137, 216, 0.3), transparent 24rem),
    linear-gradient(130deg, #061a29 0%, #092d3f 54%, #0a3d48 100%);
  box-shadow: 0 28px 70px rgba(7, 28, 43, 0.2);
}

.hero::before,
.hero::after {
  position: absolute;
  content: "";
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 999px;
  pointer-events: none;
}

.hero::before {
  top: -180px;
  right: -110px;
  width: 500px;
  height: 500px;
}

.hero::after {
  top: -105px;
  right: -35px;
  width: 350px;
  height: 350px;
}

.hero-copy,
.connection-card {
  position: relative;
  z-index: 1;
}

.eyebrow {
  margin: 0 0 7px;
  color: #288b83;
  font-size: 11px;
  font-weight: 850;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.eyebrow.light {
  color: #78e6d7;
}

h1 {
  max-width: 680px;
  margin-bottom: 18px;
  font-size: clamp(42px, 5.5vw, 68px);
  font-weight: 760;
  letter-spacing: -0.055em;
  line-height: 0.98;
}

h1 span {
  color: #67e1d2;
}

.subtitle {
  max-width: 690px;
  margin-bottom: 26px;
  color: #c5d9df;
  font-size: clamp(16px, 1.8vw, 19px);
  line-height: 1.62;
}

.hero-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.hero-chips span {
  padding: 7px 11px;
  border: 1px solid rgba(164, 237, 228, 0.18);
  border-radius: 999px;
  color: #b9d8dc;
  background: rgba(255, 255, 255, 0.06);
  font-size: 11px;
  font-weight: 750;
}

.connection-card {
  padding: 20px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 22px;
  background: rgba(4, 22, 34, 0.55);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06), 0 20px 50px rgba(0, 0, 0, 0.17);
  backdrop-filter: blur(18px);
}

.connection-card-header,
.connection-footer,
.connection-flow {
  display: flex;
  align-items: center;
}

.connection-card-header {
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 17px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.connection-card-header > div {
  display: grid;
  gap: 3px;
}

.connection-label {
  color: #75949e;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.connection-card-header strong {
  font-size: 15px;
}

.pulse-label {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: #83e8d9;
  font-size: 11px;
  font-weight: 800;
}

.pulse-label i,
.refresh-note i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #36d5bd;
  box-shadow: 0 0 0 5px rgba(54, 213, 189, 0.11);
  animation: breathe 2.3s ease-in-out infinite;
}

@keyframes breathe {
  50% { box-shadow: 0 0 0 8px rgba(54, 213, 189, 0.02); }
}

.connection-flow {
  justify-content: space-between;
  padding: 27px 2px 24px;
}

.connection-node {
  display: grid;
  flex: 0 0 68px;
  justify-items: center;
  gap: 8px;
  color: #b9d0d6;
  text-align: center;
}

.node-icon {
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  border: 1px solid rgba(123, 228, 215, 0.25);
  border-radius: 15px;
  color: #74e2d4;
  background: rgba(32, 176, 158, 0.1);
}

.node-icon.feeder-icon {
  color: #8ac2f1;
  border-color: rgba(112, 179, 234, 0.25);
  background: rgba(49, 137, 216, 0.12);
}

.node-icon svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.connection-node small {
  font-size: 9px;
  font-weight: 700;
  white-space: nowrap;
}

.flow-line {
  position: relative;
  flex: 1 1 auto;
  height: 1px;
  margin: 0 4px 23px;
  overflow: visible;
  background: linear-gradient(90deg, rgba(75, 213, 196, 0.15), rgba(75, 213, 196, 0.7), rgba(75, 213, 196, 0.15));
}

.flow-line i {
  position: absolute;
  top: -2px;
  left: 0;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #71ebdc;
  box-shadow: 0 0 10px #71ebdc;
  animation: packet 2.1s linear infinite;
}

.flow-line:nth-of-type(2) i {
  animation-delay: 1s;
}

@keyframes packet {
  from { transform: translateX(0); }
  to { transform: translateX(52px); }
}

.connection-footer {
  justify-content: space-between;
  gap: 12px;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: #83a0a8;
  font-size: 9px;
  font-weight: 700;
}

.connection-footer span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
}

.dot-aqua { background: #31cdb8; }
.dot-blue { background: #54a4e8; }

.card,
.panel {
  border: 1px solid rgba(206, 221, 224, 0.9);
  background: var(--surface);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(14px);
}

.panel {
  margin-bottom: 22px;
  padding: 26px;
  border-radius: 22px;
}

.session-panel {
  position: relative;
  display: grid;
  grid-template-columns: minmax(230px, 0.72fr) minmax(460px, 1.28fr);
  align-items: center;
  gap: 28px;
  overflow: hidden;
}

.session-panel::after {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 39%;
  width: 1px;
  content: "";
  background: linear-gradient(transparent, var(--line), transparent);
}

.access-intro,
.heading-with-icon,
.operator-identity,
.demo-copy,
.command-card-title {
  display: flex;
  align-items: center;
}

.access-intro,
.heading-with-icon {
  gap: 14px;
}

.access-intro h2,
.panel-header h2,
.section-heading h2 {
  margin-bottom: 4px;
  font-size: 20px;
}

.panel-copy,
.panel-header p,
.empty-state,
.hint,
.control-hint {
  color: var(--muted);
  line-height: 1.5;
}

.access-intro .panel-copy {
  margin-bottom: 0;
  font-size: 13px;
}

.section-icon {
  display: grid;
  flex: 0 0 auto;
  width: 44px;
  height: 44px;
  place-items: center;
  border-radius: 14px;
  color: #167f76;
  background: #e7f7f3;
}

.section-icon svg,
.button svg,
.safety-badge svg,
.command-glyph svg,
.avatar svg,
.demo-orb svg {
  width: 21px;
  height: 21px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.soft-aqua { color: #138579; background: #e6f7f3; }
.soft-blue { color: #337fc0; background: #eaf4fd; }
.soft-coral { color: #c75a51; background: #fff0ed; }
.soft-amber { color: #a86a16; background: #fff5df; }

.session-actions {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 12px;
}

.login-form,
.operator-session {
  display: flex;
  align-items: end;
  gap: 10px;
}

.login-form label,
.operator-session label {
  display: grid;
  flex: 1;
  gap: 6px;
  color: #465e6d;
  font-size: 11px;
  font-weight: 800;
}

input,
select {
  width: 100%;
  min-height: 44px;
  padding: 10px 12px;
  border: 1px solid #ccdbde;
  border-radius: 11px;
  outline: none;
  color: var(--ink);
  background: #fafdfe;
  transition: border-color 150ms ease, box-shadow 150ms ease, background 150ms ease;
}

input::placeholder {
  color: #9aabb4;
}

input:hover,
select:hover {
  border-color: #a9c2c6;
}

input:focus,
select:focus {
  border-color: #36a99f;
  background: white;
  box-shadow: 0 0 0 4px rgba(25, 185, 170, 0.12);
}

button:focus-visible {
  outline: 3px solid rgba(25, 185, 170, 0.25);
  outline-offset: 3px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  gap: 7px;
  padding: 10px 16px;
  border: 1px solid transparent;
  border-radius: 11px;
  font-weight: 800;
  cursor: pointer;
  transition: transform 140ms ease, box-shadow 140ms ease, border-color 140ms ease, background 140ms ease, opacity 140ms ease;
}

.button svg {
  width: 17px;
  height: 17px;
}

.button:not(:disabled):hover {
  transform: translateY(-1px);
}

.button:disabled {
  cursor: not-allowed;
  filter: saturate(0.5);
  opacity: 0.46;
}

.button.primary {
  color: white;
  background: linear-gradient(135deg, #0b8076, #16aa9d);
  box-shadow: 0 9px 20px rgba(14, 137, 126, 0.18);
}

.button.primary:not(:disabled):hover {
  box-shadow: 0 12px 26px rgba(14, 137, 126, 0.25);
}

.button.secondary {
  color: #24495b;
  border-color: #d0dfe2;
  background: #f1f6f7;
}

.button.secondary:not(:disabled):hover,
.button.subtle:not(:disabled):hover {
  border-color: #abc8cc;
  background: #e8f1f2;
}

.button.danger {
  color: white;
  background: linear-gradient(135deg, #d95750, #ee7568);
  box-shadow: 0 9px 20px rgba(217, 87, 80, 0.2);
}

.button.danger:not(:disabled):hover {
  box-shadow: 0 12px 25px rgba(217, 87, 80, 0.28);
}

.button.ghost,
.button.subtle {
  color: #1d635d;
  border-color: #b9dbd5;
  background: rgba(255, 255, 255, 0.68);
}

.button.subtle {
  color: #556b78;
  border-color: #d3e0e2;
}

.demo-access {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 11px 12px 11px 14px;
  border: 1px solid #c2e2dc;
  border-radius: 14px;
  background: linear-gradient(135deg, #eefaf7, #f5fbfa);
}

.demo-copy {
  min-width: 0;
  gap: 10px;
}

.demo-orb,
.avatar,
.command-glyph {
  display: grid;
  flex: 0 0 auto;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 11px;
  color: #168278;
  background: #d9f3ed;
}

.demo-orb svg {
  width: 17px;
  height: 17px;
  fill: currentColor;
  stroke: none;
}

.demo-access .label,
.operator-session .label {
  display: block;
  color: #23746c;
  font-size: 10px;
  font-weight: 850;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.demo-access p {
  margin: 3px 0 0;
  color: #637c79;
  font-size: 11px;
}

.operator-session {
  align-items: center;
}

.operator-identity {
  flex: 0 1 auto;
  min-width: 150px;
  gap: 9px;
}

.avatar {
  color: #3976aa;
  background: #eaf3fb;
}

.operator-identity strong {
  display: block;
  max-width: 160px;
  margin-top: 2px;
  overflow: hidden;
  font-size: 13px;
  text-overflow: ellipsis;
}

.device-picker {
  min-width: 240px;
}

.session-notice {
  grid-column: 1 / -1;
  margin: 0;
}

.notice {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 12px 0 0;
  padding: 11px 13px;
  border: 1px solid #dbe6e8;
  border-radius: 11px;
  color: #4c6573;
  background: #f1f6f7;
  font-size: 12px;
  line-height: 1.45;
}

.wide-notice {
  margin: 0 0 22px;
  padding: 13px 16px;
}

.demo-banner {
  color: #155f57;
  border-color: #a8dacf;
  background: linear-gradient(90deg, #e4f7f2, #effbf8);
}

.notice-symbol {
  display: grid;
  flex: 0 0 auto;
  width: 25px;
  height: 25px;
  place-items: center;
  border-radius: 8px;
  color: white;
  background: #1a9b8d;
  font-size: 10px;
  font-weight: 900;
}

.notice[data-level="normal"] {
  color: #176451;
  border-color: #bce0d4;
  background: #edf9f5;
}

.notice[data-level="warning"] {
  color: #7b5614;
  border-color: #ead8ac;
  background: #fff9e9;
}

.notice[data-level="critical"] {
  color: #8d3732;
  border-color: #efc7c2;
  background: #fff0ee;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  margin: 31px 3px 15px;
}

.section-heading h2 {
  margin-bottom: 0;
  font-size: 22px;
}

.refresh-note {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 3px;
  color: #71838e;
  font-size: 11px;
  font-weight: 700;
}

.refresh-note i {
  width: 6px;
  height: 6px;
  box-shadow: 0 0 0 4px rgba(54, 213, 189, 0.1);
}

.grid {
  display: grid;
}

.metrics-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 15px;
  margin-bottom: 22px;
}

.card {
  position: relative;
  min-width: 0;
  padding: 20px;
  overflow: hidden;
  border-radius: 18px;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.card::after {
  position: absolute;
  right: -28px;
  bottom: -35px;
  width: 100px;
  height: 100px;
  content: "";
  border-radius: 50%;
  background: var(--card-glow, rgba(25, 185, 170, 0.08));
  filter: blur(6px);
}

.card:hover {
  z-index: 1;
  transform: translateY(-3px);
  border-color: #c3d9dc;
  box-shadow: var(--shadow);
}

.temperature-card { --card-glow: rgba(25, 185, 170, 0.12); }
.cooling-card { --card-glow: rgba(49, 137, 216, 0.12); }
.pump-card { --card-glow: rgba(236, 107, 95, 0.11); }
.heartbeat-card { --card-glow: rgba(122, 109, 224, 0.11); }

.metric-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 17px;
}

.metric-icon {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 12px;
}

.metric-icon svg {
  width: 21px;
  height: 21px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.metric-icon.aqua { color: #128579; background: #e5f7f3; }
.metric-icon.blue { color: #337fc0; background: #eaf4fd; }
.metric-icon.coral { color: #c95850; background: #fff0ed; }
.metric-icon.violet { color: #695bc8; background: #f0edff; }

.metric-source {
  padding: 5px 8px;
  border: 1px solid #e0e9eb;
  border-radius: 999px;
  color: #84949d;
  background: #f8fbfb;
  font-size: 8px;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.metric-card h3 {
  margin-bottom: 7px;
  color: #60727e;
  font-size: 12px;
  font-weight: 750;
}

.metric {
  position: relative;
  z-index: 1;
  min-height: 43px;
  margin-bottom: 7px;
  overflow: hidden;
  color: #102a3b;
  font-size: clamp(28px, 3.4vw, 38px);
  font-weight: 780;
  letter-spacing: -0.045em;
  line-height: 1.12;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.metric.small {
  display: flex;
  align-items: center;
  font-size: clamp(22px, 2.7vw, 30px);
}

.metric-unit {
  margin-left: 3px;
  color: #6b7d87;
  font-size: 16px;
  font-weight: 650;
  letter-spacing: 0;
}

.hint {
  position: relative;
  z-index: 1;
  margin-bottom: 0;
  font-size: 10px;
}

.hint strong {
  color: #536b78;
}

.metric-card[data-level="warning"] {
  border-color: #e8d4a5;
}

.metric-card[data-level="critical"],
.pump-card[data-state="error"] {
  border-color: #efc0ba;
  background: #fff9f8;
}

.cooling-card[data-active="true"] .metric {
  color: #237cc2;
}

.heartbeat-card[data-online="true"] .metric-source {
  color: #14745f;
  border-color: #bfe2d8;
  background: #eaf8f4;
}

.panel-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 20px;
}

.panel-header.compact {
  align-items: center;
  margin-bottom: 14px;
}

.panel-header p {
  margin-bottom: 0;
  font-size: 12px;
}

.api-url,
.history-chip {
  color: #71838e;
  font-size: 10px;
  font-weight: 700;
}

.api-url code {
  padding: 3px 6px;
  border: 1px solid #d8e4e6;
  border-radius: 6px;
  color: #317b75;
  background: #f2f8f7;
}

.chart-legend {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #58717e;
  font-size: 10px;
  font-weight: 750;
}

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

.chart-legend i {
  width: 16px;
  height: 3px;
  border-radius: 999px;
  background: #17a99c;
}

.chart-shell {
  padding: 11px 9px 0;
  border: 1px solid #e4ecee;
  border-radius: 15px;
  background:
    linear-gradient(rgba(244, 249, 250, 0.7), rgba(250, 252, 252, 0.82)),
    radial-gradient(circle at 20% 0%, rgba(25, 185, 170, 0.08), transparent 25rem);
}

#tempChart {
  display: block;
  width: 100%;
  height: 300px;
}

.operations-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(340px, 0.65fr);
  gap: 22px;
}

.operations-grid .panel {
  min-width: 0;
}

.safety-badge,
.history-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 9px;
  border: 1px solid #ead7af;
  border-radius: 999px;
  color: #8a5d14;
  background: #fff8e8;
  font-size: 9px;
  font-weight: 850;
  white-space: nowrap;
}

.safety-badge svg {
  width: 14px;
  height: 14px;
}

.history-chip {
  color: #617581;
  border-color: #dce6e8;
  background: #f6f9fa;
}

.controls-panel > .panel-copy {
  max-width: 680px;
  margin-bottom: 0;
  font-size: 12px;
}

.control-state {
  margin-top: 15px;
}

.command-section {
  padding-top: 20px;
  margin-top: 20px;
  border-top: 1px solid #e5edef;
}

.command-section-title {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 15px;
  margin-bottom: 12px;
}

.command-section-title h3 {
  margin-bottom: 3px;
  font-size: 13px;
}

.command-section-title > span {
  padding: 5px 8px;
  border-radius: 999px;
  color: #7b8a93;
  background: #f3f7f8;
  font-size: 8px;
  font-weight: 800;
  white-space: nowrap;
}

.control-hint {
  margin: 0;
  font-size: 10px;
}

.duration-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.duration-command {
  padding: 14px;
  border: 1px solid #e1eaec;
  border-radius: 14px;
  background: #f9fbfc;
  transition: border-color 150ms ease, background 150ms ease;
}

.duration-command:hover {
  border-color: #cbdde0;
  background: #fbfdfd;
}

.command-card-title {
  gap: 9px;
  margin-bottom: 14px;
}

.command-glyph {
  color: #c4564f;
  background: #ffedea;
}

.clean-command .command-glyph {
  color: #2e7ead;
  background: #eaf4fa;
}

.command-card-title > div {
  display: grid;
  gap: 1px;
}

.command-card-title strong {
  font-size: 12px;
}

.command-card-title small {
  color: #7a8a93;
  font-size: 9px;
}

.duration-command > label {
  display: block;
  margin-bottom: 6px;
  color: #506773;
  font-size: 10px;
  font-weight: 750;
}

.duration-action {
  display: grid;
  grid-template-columns: minmax(105px, 1fr) auto;
  gap: 8px;
}

.input-with-unit {
  position: relative;
}

.input-with-unit input {
  padding-right: 34px;
}

.input-with-unit span {
  position: absolute;
  top: 50%;
  right: 11px;
  color: #8999a1;
  font-size: 9px;
  font-weight: 750;
  transform: translateY(-50%);
  pointer-events: none;
}

.cooling-section {
  display: grid;
  grid-template-columns: minmax(170px, 0.75fr) minmax(280px, 1.25fr);
  align-items: center;
  gap: 18px;
}

.cooling-section .command-section-title {
  margin-bottom: 0;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.segmented-controls {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  padding: 4px;
  border: 1px solid #dce7e9;
  border-radius: 13px;
  background: #f2f6f7;
}

.segmented-controls .button {
  min-height: 38px;
  padding: 8px 10px;
  border: 0;
  background: transparent;
  font-size: 10px;
}

.segmented-controls .button:not(:disabled):hover {
  background: white;
  box-shadow: 0 4px 12px rgba(17, 39, 56, 0.06);
}

.scroll-panel {
  max-height: 510px;
  overflow: auto;
  scrollbar-color: #c8d8db transparent;
  scrollbar-width: thin;
}

.command-list,
.alert-list {
  display: grid;
  gap: 9px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.command-list li {
  position: relative;
  padding: 12px 12px 12px 15px;
  overflow: hidden;
  border: 1px solid #e3ebed;
  border-radius: 12px;
  background: #fafcfc;
}

.command-list li::before {
  position: absolute;
  top: 10px;
  bottom: 10px;
  left: 0;
  width: 3px;
  content: "";
  border-radius: 999px;
  background: #c5d3d7;
}

.command-list li:has(.command-status[data-status="completed"])::before { background: #25aa85; }
.command-list li:has(.command-status[data-status="failed"])::before,
.command-list li:has(.command-status[data-status="expired"])::before { background: #df665d; }
.command-list li:has(.command-status[data-status="claimed"])::before { background: #4c91d0; }

.command-list li > div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.command-list strong {
  color: #294656;
  font-size: 11px;
}

.command-list p {
  margin: 6px 0 0;
  color: #778993;
  font-size: 9px;
  line-height: 1.45;
}

.command-status {
  padding: 4px 7px;
  border-radius: 999px;
  color: #566a76;
  background: #eaf0f2;
  font-size: 8px;
  font-weight: 900;
  letter-spacing: 0.03em;
}

.command-status[data-status="completed"] { color: #126047; background: #def4e9; }
.command-status[data-status="failed"],
.command-status[data-status="expired"] { color: #8b332e; background: #fde5e2; }
.command-status[data-status="claimed"] { color: #285c8d; background: #e4f0fb; }

.empty-state {
  display: grid;
  min-height: 150px;
  margin: 0;
  place-items: center;
  border: 1px dashed #d7e3e5;
  border-radius: 13px;
  background: #fafcfc;
  font-size: 11px;
  text-align: center;
}

.alerts-panel .panel-header {
  margin-bottom: 16px;
}

.alert-list li {
  position: relative;
  padding: 13px 14px 13px 42px;
  border: 1px solid #e4ecee;
  border-radius: 12px;
  color: #526975;
  background: #fafcfc;
  font-size: 11px;
  line-height: 1.5;
}

.alert-list li::before {
  position: absolute;
  top: 50%;
  left: 14px;
  display: grid;
  width: 19px;
  height: 19px;
  content: "i";
  place-items: center;
  border-radius: 6px;
  color: #55717e;
  background: #e8f0f2;
  font-size: 10px;
  font-weight: 900;
  transform: translateY(-50%);
}

.alert-list li[data-level="warning"] {
  color: #75541a;
  border-color: #ecdcb8;
  background: #fffbf0;
}

.alert-list li[data-level="warning"]::before {
  content: "!";
  color: #885b0d;
  background: #f9e9bf;
}

.alert-list li[data-level="critical"] {
  color: #873b36;
  border-color: #efcdc8;
  background: #fff6f4;
}

.alert-list li[data-level="critical"]::before {
  content: "!";
  color: #8c302b;
  background: #f9deda;
}

.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 12px 4px 0;
  color: #758690;
}

.footer p {
  margin: 0;
  font-size: 10px;
}

.footer-brand strong {
  font-size: 12px;
}

.footer-brand small {
  font-size: 9px;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

@media (max-width: 1040px) {
  .hero {
    grid-template-columns: minmax(0, 1fr) 330px;
    gap: 28px;
  }

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

  .session-panel::after {
    display: none;
  }

  .access-intro {
    align-items: flex-start;
  }

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

  .scroll-panel {
    max-height: 360px;
  }
}

@media (max-width: 860px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .hero-copy {
    max-width: 680px;
  }

  .connection-card {
    max-width: 480px;
  }

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

  .cooling-section {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 700px) {
  .container {
    width: min(100% - 24px, 1240px);
  }

  .topbar {
    min-height: 74px;
  }

  .secure-chip {
    display: none;
  }

  .hero {
    padding: 34px 26px;
    border-radius: 24px;
  }

  .hero::before,
  .hero::after {
    opacity: 0.55;
  }

  h1 {
    font-size: clamp(40px, 12vw, 56px);
  }

  .panel {
    padding: 20px;
    border-radius: 18px;
  }

  .login-form,
  .operator-session,
  .demo-access,
  .panel-header,
  .section-heading {
    align-items: stretch;
    flex-direction: column;
  }

  .operator-identity {
    min-width: 0;
  }

  .device-picker {
    min-width: 0;
  }

  .demo-access .button,
  .operator-session .button {
    width: 100%;
  }

  .chart-legend {
    justify-content: space-between;
  }

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

  .footer {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 520px) {
  .brand small,
  .footer p {
    display: none;
  }

  .brand strong {
    font-size: 14px;
  }

  .status-pill {
    max-width: 150px;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .hero {
    padding: 30px 20px;
  }

  .subtitle {
    font-size: 15px;
  }

  .hero-chips {
    gap: 6px;
  }

  .connection-card {
    padding: 16px;
  }

  .connection-node {
    flex-basis: 62px;
  }

  .flow-line {
    margin-right: 1px;
    margin-left: 1px;
  }

  @keyframes packet {
    from { transform: translateX(0); }
    to { transform: translateX(28px); }
  }

  .connection-footer {
    align-items: flex-start;
    flex-direction: column;
  }

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

  .card {
    padding: 18px;
  }

  #tempChart {
    height: 250px;
  }

  .duration-action {
    grid-template-columns: 1fr;
  }

  .segmented-controls {
    grid-template-columns: 1fr;
  }

  .segmented-controls .button {
    min-height: 40px;
  }

  .safety-badge,
  .history-chip {
    align-self: flex-start;
  }
}