:root {
  color-scheme: dark;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  font-synthesis: none;
  --bg: #07080a;
  --panel: rgba(30, 31, 34, 0.82);
  --panel-strong: rgba(35, 36, 39, 0.94);
  --panel-soft: rgba(255, 255, 255, 0.045);
  --line: rgba(255, 255, 255, 0.09);
  --line-strong: rgba(255, 255, 255, 0.15);
  --text: #f5f7fb;
  --muted: #979ba5;
  --subtle: #6f747e;
  --cyan: #64d2ff;
  --cyan-deep: #1689d8;
  --green: #48df9c;
  --amber: #f4b84a;
  --red: #ff4d57;
  --violet: #8c7cff;
  --pink: #f16fb4;
  --radius-xl: 30px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.36), inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

* { box-sizing: border-box; }

html { min-width: 320px; min-height: 100%; background: var(--bg); }

body {
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 48% -20%, rgba(57, 65, 75, 0.28), transparent 43%),
    linear-gradient(155deg, #0b0c0f 0%, #060709 58%, #090a0c 100%);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

button, input, select { font: inherit; }
button, select { -webkit-tap-highlight-color: transparent; }
button { color: inherit; }
button:focus-visible, input:focus-visible, select:focus-visible {
  outline: 3px solid rgba(100, 210, 255, 0.75);
  outline-offset: 3px;
}

[hidden] { display: none !important; }

.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;
}

.ambient {
  position: fixed;
  z-index: -1;
  width: 42vw;
  aspect-ratio: 1;
  border-radius: 50%;
  filter: blur(130px);
  opacity: 0.11;
  pointer-events: none;
}
.ambient--one { left: -22vw; top: 8vh; background: var(--cyan); }
.ambient--two { right: -25vw; bottom: -20vh; background: var(--violet); }

.glass-panel {
  border: 1px solid var(--line);
  background: linear-gradient(145deg, rgba(38, 39, 42, 0.9), rgba(22, 23, 26, 0.78));
  box-shadow: var(--shadow);
  backdrop-filter: blur(24px) saturate(125%);
  -webkit-backdrop-filter: blur(24px) saturate(125%);
}

.alarm-edge {
  position: fixed;
  z-index: 1000;
  inset: 0;
  pointer-events: none;
  opacity: 0;
  box-shadow:
    inset 0 0 22px rgba(255, 35, 47, 0.95),
    inset 0 0 70px rgba(255, 35, 47, 0.44),
    inset 0 0 150px rgba(255, 35, 47, 0.12);
  transition: opacity 500ms ease;
}
.alarm-edge.is-active { opacity: 1; animation: alarm-breathe 1.8s ease-in-out infinite; }
@keyframes alarm-breathe { 50% { opacity: 0.58; } }

.brand-logo {
  display: block;
  width: auto;
  max-width: 100%;
  height: 66px;
  object-fit: contain;
  object-position: left center;
  filter: invert(1);
}
.brand-logo--login { width: min(100%, 360px); height: auto; }

.login-screen {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: max(28px, env(safe-area-inset-top)) max(24px, env(safe-area-inset-right)) max(28px, env(safe-area-inset-bottom)) max(24px, env(safe-area-inset-left));
}

.login-card {
  position: relative;
  width: min(560px, 100%);
  padding: 52px;
  border-radius: 34px;
  overflow: hidden;
}
.login-card::after {
  content: "";
  position: absolute;
  top: -80px;
  right: -60px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: rgba(100, 210, 255, 0.08);
  filter: blur(40px);
  pointer-events: none;
}
.login-card__heading { margin: 28px 0 30px; }
.eyebrow {
  margin: 0 0 8px;
  color: var(--cyan);
  font-size: 13px;
  font-weight: 750;
  letter-spacing: 0.11em;
}
.login-card h1 { margin: 0; font-size: clamp(42px, 6vw, 58px); letter-spacing: -0.055em; line-height: 1; }
.login-card__heading > p:last-child { margin: 15px 0 0; color: var(--muted); font-size: 18px; line-height: 1.65; }

.readonly-banner {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  border: 1px solid rgba(72, 223, 156, 0.18);
  border-radius: 17px;
  background: rgba(72, 223, 156, 0.07);
  color: #b9f8d9;
}
.readonly-banner__icon { color: var(--green); font-size: 20px; }
.readonly-banner strong, .readonly-banner small { display: block; }
.readonly-banner strong { font-size: 16px; }
.readonly-banner small { margin-top: 3px; color: rgba(185, 248, 217, 0.64); font-size: 13px; }
.readonly-banner--compact { padding: 12px 16px; }

.login-form { display: grid; gap: 18px; margin-top: 28px; }
.login-form label { display: grid; gap: 9px; color: #d9dce3; font-size: 15px; font-weight: 650; }
.login-form input {
  width: 100%;
  min-height: 58px;
  padding: 0 18px;
  border: 1px solid var(--line-strong);
  border-radius: 15px;
  background: rgba(6, 7, 9, 0.6);
  color: var(--text);
  font-size: 18px;
  transition: border-color 180ms ease, background 180ms ease, box-shadow 180ms ease;
}
.login-form input:focus { border-color: rgba(100, 210, 255, 0.7); background: rgba(6, 7, 9, 0.9); box-shadow: 0 0 0 5px rgba(100, 210, 255, 0.08); outline: 0; }
.form-error { min-height: 20px; margin: -5px 0 -3px; color: #ff8e95; font-size: 14px; }

.primary-button, .secondary-button, .icon-button, .language-button, .view-tab, .window-switch button {
  min-height: 52px;
  border: 0;
  cursor: pointer;
}
.primary-button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 62px;
  padding: 0 22px;
  border-radius: 17px;
  background: linear-gradient(135deg, #2cb7ff, #1671df);
  box-shadow: 0 14px 30px rgba(19, 107, 212, 0.26), inset 0 1px 0 rgba(255, 255, 255, 0.3);
  font-size: 17px;
  font-weight: 750;
}
.primary-button:hover { filter: brightness(1.08); }
.primary-button:disabled { cursor: progress; opacity: 0.55; }

.language-button {
  display: inline-grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  min-width: 100px;
  padding: 5px;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: rgba(255, 255, 255, 0.045);
  color: var(--muted);
  font-weight: 750;
}
.language-button span { display: grid; place-items: center; height: 38px; border-radius: 11px; }
.language-button__active { background: rgba(100, 210, 255, 0.16); color: var(--cyan); box-shadow: inset 0 0 0 1px rgba(100, 210, 255, 0.13); }
.language-button--login { margin-top: 24px; }

.portal { width: min(2160px, 100%); min-height: 100vh; margin: 0 auto; padding: 18px 26px 36px; }
.topbar {
  position: sticky;
  z-index: 50;
  top: 14px;
  display: grid;
  grid-template-columns: minmax(250px, 0.9fr) minmax(600px, 1.7fr) minmax(350px, 1.15fr);
  align-items: center;
  gap: 18px;
  min-height: 92px;
  padding: 13px 18px;
  border-radius: 26px;
}
.brand-lockup { display: flex; min-width: 0; align-items: center; }

.view-tabs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
.view-tab {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 11px;
  min-height: 64px;
  padding: 8px 16px;
  border: 1px solid transparent;
  border-radius: 17px;
  background: transparent;
  color: var(--muted);
  transition: color 180ms ease, background 180ms ease, transform 180ms ease;
}
.view-tab:hover { color: var(--text); background: rgba(255, 255, 255, 0.04); }
.view-tab:active { transform: scale(0.98); }
.view-tab.is-active { border-color: rgba(100, 210, 255, 0.17); background: rgba(100, 210, 255, 0.1); color: var(--text); }
.view-tab__icon { color: var(--cyan); font-size: 20px; }
.view-tab b, .view-tab small { display: block; white-space: nowrap; }
.view-tab b { font-size: 16px; }
.view-tab small { margin-top: 2px; color: var(--subtle); font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em; }
.topbar__actions { display: flex; justify-content: flex-end; align-items: center; gap: 10px; }
.device-picker select {
  min-width: 180px;
  max-width: 260px;
  height: 52px;
  padding: 0 38px 0 15px;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: #202125;
  color: var(--text);
  font-weight: 700;
}
.icon-button {
  display: grid;
  place-items: center;
  width: 52px;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: rgba(255, 255, 255, 0.045);
  color: var(--muted);
  font-size: 22px;
}
.icon-button:hover { color: var(--text); background: rgba(255, 255, 255, 0.08); }

.connection-strip {
  display: flex;
  align-items: center;
  gap: 13px;
  margin-top: 16px;
  min-height: 58px;
  padding: 10px 18px;
  border-radius: 19px;
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.03);
}
.connection-dot { width: 11px; height: 11px; flex: 0 0 auto; border-radius: 50%; background: var(--subtle); box-shadow: 0 0 0 6px rgba(111, 116, 126, 0.1); }
.connection-dot.is-online { background: var(--green); box-shadow: 0 0 0 6px rgba(72, 223, 156, 0.1), 0 0 20px rgba(72, 223, 156, 0.45); }
.connection-dot.is-offline { background: var(--red); box-shadow: 0 0 0 6px rgba(255, 77, 87, 0.1); }
.connection-dot.is-loading { background: var(--amber); animation: pulse 1.2s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: 0.35; } }
.connection-strip__main { min-width: 0; flex: 1; display: flex; align-items: baseline; gap: 12px; }
.connection-strip__main strong { font-size: 15px; }
.connection-strip__main span { overflow: hidden; color: var(--muted); font-size: 13px; text-overflow: ellipsis; white-space: nowrap; }
.mode-chip { padding: 7px 12px; border: 1px solid var(--line); border-radius: 999px; color: var(--cyan); background: rgba(100, 210, 255, 0.07); font-size: 12px; font-weight: 800; letter-spacing: 0.08em; }
.connection-strip time { min-width: 170px; color: var(--muted); font-variant-numeric: tabular-nums; text-align: right; font-size: 13px; }

.service-warning {
  display: flex;
  align-items: center;
  gap: 17px;
  margin-top: 16px;
  padding: 18px 22px;
  border: 1px solid rgba(244, 184, 74, 0.38);
  border-radius: 20px;
  background: linear-gradient(90deg, rgba(104, 68, 10, 0.72), rgba(244, 184, 74, 0.1));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.07), 0 0 38px rgba(244, 184, 74, 0.13);
  animation: service-warning-enter 420ms cubic-bezier(0.2, 0.78, 0.25, 1);
}
.service-warning__icon {
  display: grid;
  width: 38px;
  height: 38px;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid rgba(255, 215, 137, 0.42);
  border-radius: 50%;
  background: rgba(244, 184, 74, 0.16);
  color: #ffd989;
  font-size: 22px;
  font-weight: 850;
  box-shadow: 0 0 22px rgba(244, 184, 74, 0.22);
}
.service-warning div { min-width: 0; }
.service-warning strong, .service-warning div span { display: block; }
.service-warning strong { color: #fff2d4; font-size: 18px; }
.service-warning div span { margin-top: 5px; color: rgba(255, 229, 181, 0.78); font-size: 14px; }
@keyframes service-warning-enter {
  from { opacity: 0; transform: translateY(-10px); }
}

.alarm-banner {
  display: flex;
  align-items: center;
  gap: 17px;
  margin-top: 16px;
  padding: 17px 22px;
  border: 1px solid rgba(255, 77, 87, 0.3);
  border-radius: 20px;
  background: linear-gradient(90deg, rgba(112, 14, 22, 0.56), rgba(255, 77, 87, 0.08));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06), 0 0 35px rgba(255, 39, 51, 0.12);
}
.alarm-banner__pulse { width: 14px; height: 14px; border-radius: 50%; background: var(--red); box-shadow: 0 0 0 8px rgba(255, 77, 87, 0.12), 0 0 24px var(--red); animation: pulse 1s ease-in-out infinite; }
.alarm-banner div { flex: 1; }
.alarm-banner strong, .alarm-banner span { display: block; }
.alarm-banner strong { font-size: 17px; }
.alarm-banner span { margin-top: 4px; color: #ffb8bc; font-size: 14px; }
.alarm-banner small { color: rgba(255, 216, 218, 0.7); text-align: right; }

.portal-content { padding: 34px 3px 0; }
.portal-view { animation: view-enter 320ms cubic-bezier(0.2, 0.75, 0.3, 1); }
@keyframes view-enter { from { opacity: 0; transform: translateY(10px); } }
.section-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin: 0 4px 24px; }
.section-heading h1 { margin: 0; font-size: clamp(30px, 2.7vw, 44px); line-height: 1.1; letter-spacing: -0.035em; }
.section-heading__meta { display: flex; gap: 16px; padding-bottom: 4px; }
.quality-key { display: inline-flex; align-items: center; gap: 7px; color: var(--muted); font-size: 13px; }
.quality-key__dot { width: 8px; height: 8px; border-radius: 50%; }
.quality-key__dot--valid { background: var(--green); }
.quality-key__dot--stale { background: var(--amber); }
.quality-key__dot--invalid { background: var(--red); }

.metric-grid { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 13px; }
.metric-card {
  position: relative;
  min-width: 0;
  min-height: 270px;
  padding: 24px 18px 20px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 100% 0%, color-mix(in srgb, var(--metric-color) 10%, transparent), transparent 48%),
    linear-gradient(145deg, rgba(40, 41, 44, 0.86), rgba(20, 21, 24, 0.84));
  box-shadow: var(--shadow);
  transition: transform 220ms ease, border-color 220ms ease;
}
.metric-card:hover { transform: translateY(-3px); border-color: color-mix(in srgb, var(--metric-color) 32%, var(--line)); }
.metric-card::before { content: ""; position: absolute; inset: 0 auto auto 22%; width: 56%; height: 3px; border-radius: 0 0 4px 4px; background: var(--metric-color); box-shadow: 0 0 17px color-mix(in srgb, var(--metric-color) 45%, transparent); }
.metric-card.is-stale { border-color: rgba(244, 184, 74, 0.2); }
.metric-card.is-invalid { border-color: rgba(255, 77, 87, 0.2); }
.metric-card.is-offline { opacity: 0.66; filter: saturate(0.65); }
.metric-card__header { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.metric-card__symbol { display: grid; place-items: center; width: 43px; height: 43px; border-radius: 14px; background: color-mix(in srgb, var(--metric-color) 13%, transparent); color: var(--metric-color); font-size: 16px; font-weight: 850; }
.quality-pill { display: inline-flex; align-items: center; gap: 6px; min-height: 28px; padding: 0 9px; border-radius: 999px; background: rgba(72, 223, 156, 0.09); color: var(--green); font-size: 11px; font-weight: 800; }
.quality-pill::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.quality-pill.is-stale { color: var(--amber); background: rgba(244, 184, 74, 0.09); }
.quality-pill.is-invalid, .quality-pill.is-offline { color: #ff8d94; background: rgba(255, 77, 87, 0.09); }
.metric-card__name { display: block; margin-top: 25px; color: #c5c8cf; font-size: 17px; font-weight: 700; }
.metric-card__value { display: flex; align-items: baseline; gap: 7px; margin-top: 7px; font-variant-numeric: tabular-nums; }
.metric-card__value strong { overflow: hidden; font-size: clamp(36px, 3vw, 54px); line-height: 1.08; letter-spacing: -0.055em; text-overflow: ellipsis; }
.metric-card__value span { color: var(--muted); font-size: 14px; font-weight: 750; white-space: nowrap; }
.metric-card__footer { position: absolute; right: 18px; bottom: 18px; left: 18px; display: flex; align-items: center; justify-content: space-between; gap: 10px; padding-top: 13px; border-top: 1px solid rgba(255, 255, 255, 0.06); color: var(--subtle); font-size: 11px; }
.metric-card__footer span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.live-footer-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin-top: 16px; }
.status-card { position: relative; min-height: 150px; padding: 22px 24px; overflow: hidden; border-radius: 22px; }
.status-card__accent { position: absolute; top: 0; left: 22px; width: 58px; height: 3px; border-radius: 0 0 4px 4px; }
.status-card__accent--cyan { background: var(--cyan); }
.status-card__accent--violet { background: var(--violet); }
.status-card__accent--green { background: var(--green); }
.status-card__label { display: flex; align-items: center; justify-content: space-between; color: var(--muted); font-size: 14px; }
.status-card__label i { width: 9px; height: 9px; border-radius: 50%; background: var(--subtle); }
.status-card > strong { display: block; margin-top: 18px; font-size: 25px; }
.status-card > p { margin: 7px 0 0; color: var(--muted); font-size: 13px; }

.section-heading--chart { align-items: center; }
.window-switch { display: grid; grid-template-columns: repeat(4, 1fr); gap: 5px; padding: 5px; border: 1px solid var(--line); border-radius: 17px; background: rgba(255, 255, 255, 0.04); }
.window-switch button { min-width: 68px; min-height: 46px; border-radius: 12px; background: transparent; color: var(--muted); font-weight: 750; }
.window-switch button.is-active { background: rgba(100, 210, 255, 0.14); color: var(--cyan); box-shadow: inset 0 0 0 1px rgba(100, 210, 255, 0.13); }
.trend-panel { padding: 22px; border-radius: var(--radius-xl); }
.trend-panel__toolbar { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 16px; }
.series-toggles { display: flex; flex-wrap: wrap; gap: 8px; }
.series-toggle { position: relative; }
.series-toggle input { position: absolute; opacity: 0; pointer-events: none; }
.series-toggle span { display: inline-flex; align-items: center; gap: 8px; min-height: 44px; padding: 0 13px; border: 1px solid var(--line); border-radius: 13px; background: rgba(255, 255, 255, 0.025); color: var(--muted); cursor: pointer; font-size: 13px; font-weight: 700; }
.series-toggle span::before { content: ""; width: 16px; height: 4px; border-radius: 3px; background: var(--series-color); box-shadow: 0 0 10px color-mix(in srgb, var(--series-color) 45%, transparent); }
.series-toggle input:checked + span { border-color: color-mix(in srgb, var(--series-color) 30%, var(--line)); background: color-mix(in srgb, var(--series-color) 8%, transparent); color: var(--text); }
.series-toggle input:focus-visible + span { outline: 3px solid rgba(100, 210, 255, 0.65); outline-offset: 2px; }
.secondary-button { padding: 0 17px; border: 1px solid var(--line); border-radius: 14px; background: rgba(255, 255, 255, 0.04); color: #d5d8de; font-size: 13px; font-weight: 700; }
.secondary-button:hover { background: rgba(255, 255, 255, 0.08); }
.chart-shell { position: relative; height: min(58vh, 620px); min-height: 430px; overflow: hidden; border: 1px solid rgba(255, 255, 255, 0.065); border-radius: 20px; background: linear-gradient(180deg, rgba(3, 4, 6, 0.72), rgba(11, 12, 15, 0.86)); touch-action: none; }
#trend-chart { display: block; width: 100%; height: 100%; cursor: grab; }
#trend-chart:active { cursor: grabbing; }
.chart-loading { position: absolute; z-index: 3; inset: 0; display: grid; place-content: center; justify-items: center; gap: 13px; background: rgba(8, 9, 11, 0.78); color: var(--muted); }
.spinner { width: 31px; height: 31px; border: 3px solid rgba(100, 210, 255, 0.15); border-top-color: var(--cyan); border-radius: 50%; animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.chart-tooltip { position: absolute; z-index: 4; max-width: 270px; padding: 10px 12px; border: 1px solid var(--line-strong); border-radius: 12px; background: rgba(26, 27, 30, 0.94); box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35); pointer-events: none; font-size: 12px; line-height: 1.55; }
.chart-footer { display: flex; align-items: center; justify-content: space-between; gap: 18px; min-height: 48px; padding: 13px 4px 0; color: var(--muted); font-size: 12px; }

.system-layout { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.system-card { min-height: 500px; padding: 26px; border-radius: var(--radius-xl); }
.system-card > header { display: flex; align-items: center; justify-content: space-between; padding-bottom: 19px; border-bottom: 1px solid rgba(255, 255, 255, 0.07); color: var(--muted); font-weight: 700; }
.system-card > header strong { padding: 7px 11px; border-radius: 999px; background: rgba(255, 255, 255, 0.06); color: var(--text); font-size: 12px; }
.health-orbit { display: grid; place-items: center; width: 178px; height: 178px; margin: 36px auto; border: 1px solid rgba(72, 223, 156, 0.28); border-radius: 50%; background: radial-gradient(circle, rgba(72, 223, 156, 0.12), transparent 62%); box-shadow: inset 0 0 30px rgba(72, 223, 156, 0.06), 0 0 36px rgba(72, 223, 156, 0.08); }
.health-orbit::before { content: ""; position: absolute; width: 148px; height: 148px; border: 1px dashed rgba(72, 223, 156, 0.2); border-radius: 50%; }
.health-orbit span { font-size: 25px; font-weight: 800; }
.stat-list, .detail-list { margin: 0; }
.stat-list > div, .detail-list > div { display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 54px; border-bottom: 1px solid rgba(255, 255, 255, 0.055); }
.stat-list dt, .detail-list dt { color: var(--muted); font-size: 14px; }
.stat-list dd, .detail-list dd { margin: 0; font-size: 16px; font-weight: 750; font-variant-numeric: tabular-nums; text-align: right; }
.program-hero { display: grid; grid-template-columns: 138px 1fr; align-items: center; gap: 24px; margin: 38px 0; }
.program-hero__ring { display: grid; place-items: center; width: 138px; height: 138px; border: 1px solid rgba(140, 124, 255, 0.3); border-radius: 50%; background: radial-gradient(circle, rgba(140, 124, 255, 0.16), transparent 66%); }
.program-hero__ring span { font-size: 26px; font-weight: 850; }
.program-hero small, .program-hero strong { display: block; }
.program-hero small { color: var(--muted); font-size: 13px; }
.program-hero strong { margin-top: 7px; font-size: 29px; }
.program-hero p { margin: 8px 0 0; color: var(--muted); font-size: 13px; line-height: 1.5; }
.detail-list--large { margin-top: 27px; }
.detail-list--large > div { min-height: 67px; }
.detail-list--large dd { font-size: 20px; }
.system-note { margin: 28px 0 0; padding: 15px 17px; border-radius: 15px; background: rgba(244, 184, 74, 0.07); color: #dfbf7a; font-size: 13px; line-height: 1.55; }

.empty-state { display: grid; place-items: center; min-height: 430px; padding: 50px; border-radius: var(--radius-xl); text-align: center; }
.empty-state__glyph { display: grid; place-items: center; width: 88px; height: 88px; border-radius: 28px; background: rgba(100, 210, 255, 0.08); color: var(--cyan); font-size: 37px; }
.empty-state h2 { margin: 22px 0 0; font-size: 28px; }
.empty-state p { margin: 10px 0 0; color: var(--muted); }
.toast { position: fixed; z-index: 1100; right: 24px; bottom: 24px; max-width: min(420px, calc(100vw - 48px)); padding: 15px 18px; border: 1px solid var(--line-strong); border-radius: 15px; background: rgba(35, 36, 39, 0.96); box-shadow: var(--shadow); color: var(--text); font-size: 14px; }
noscript { position: fixed; inset: auto 20px 20px; padding: 16px; background: #381b1f; border-radius: 12px; }

@media (max-width: 1500px) {
  .topbar { grid-template-columns: 230px minmax(520px, 1fr) auto; }
  .view-tab small { display: none; }
  .metric-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .metric-card { min-height: 240px; }
}

@media (max-width: 1100px) {
  .portal { padding: 12px 14px 28px; }
  .topbar { position: relative; top: 0; grid-template-columns: 1fr auto; }
  .view-tabs { grid-column: 1 / -1; grid-row: 2; }
  .topbar__actions { grid-column: 2; grid-row: 1; }
  .language-button { min-width: 88px; }
  .metric-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .live-footer-grid, .system-layout { grid-template-columns: 1fr; }
  .system-card { min-height: auto; }
  .trend-panel__toolbar { align-items: flex-start; flex-direction: column; }
  .secondary-button { align-self: flex-end; }
}

@media (max-width: 720px) {
  .login-card { padding: 34px 25px; }
  .portal { padding: 8px 8px 24px; }
  .topbar { gap: 12px; padding: 12px; border-radius: 20px; }
  .brand-lockup .brand-logo { height: 54px; }
  .device-picker select { width: 52px; min-width: 52px; padding: 0 8px; color: transparent; }
  .icon-button { display: none; }
  .view-tab { min-height: 58px; padding: 6px; }
  .view-tab__icon { display: none; }
  .view-tab b { font-size: 13px; }
  .connection-strip { flex-wrap: wrap; }
  .connection-strip__main { min-width: calc(100% - 30px); display: grid; gap: 2px; }
  .connection-strip time { min-width: 0; margin-left: auto; }
  .alarm-banner { align-items: flex-start; flex-wrap: wrap; }
  .alarm-banner small { width: 100%; text-align: left; }
  .section-heading { align-items: flex-start; flex-direction: column; }
  .section-heading__meta { flex-wrap: wrap; }
  .metric-grid { grid-template-columns: 1fr; }
  .metric-card { min-height: 220px; }
  .metric-card__value strong { font-size: 48px; }
  .window-switch { width: 100%; }
  .window-switch button { min-width: 0; }
  .chart-shell { min-height: 390px; }
  .chart-footer { align-items: flex-start; flex-direction: column; }
  .program-hero { grid-template-columns: 110px 1fr; }
  .program-hero__ring { width: 110px; height: 110px; }
}

@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; }
}

@supports not (backdrop-filter: blur(1px)) {
  .glass-panel { background: var(--panel-strong); }
}