:root {
  color-scheme: dark;
  --sidebar-width: clamp(232px, 15vw, 272px);
  --topbar-height: clamp(64px, 6.2vh, 76px);
  --page-padding: clamp(10px, 1.05vw, 20px);
  --page-gap: clamp(8px, .8vw, 16px);
  --panel-gap: var(--page-gap);
  --panel-padding: clamp(12px, .9vw, 18px);
  --chart-height: clamp(240px, 34vh, 430px);
  --radius: 8px;
  --radius-lg: 12px;
  --control-height: 44px;
  --font-xs: clamp(.72rem, .69rem + .12vw, .82rem);
  --font-sm: clamp(.8rem, .76rem + .15vw, .92rem);
  --font-md: clamp(.9rem, .85rem + .18vw, 1rem);
  --font-lg: clamp(1.05rem, .95rem + .35vw, 1.35rem);
  --font-xl: clamp(1.25rem, 1.05rem + .7vw, 1.75rem);
  --bg: #061522;
  --bg-2: #081c2b;
  --panel: #0d2638;
  --panel-2: #102d42;
  --panel-3: #0a2031;
  --line: rgba(119, 165, 198, .2);
  --line-strong: rgba(119, 165, 198, .36);
  --text: #eef7ff;
  --muted: #9bb0c2;
  --blue: #3487ff;
  --green: #35ca49;
  --yellow: #ffc329;
  --purple: #a646ff;
  --cyan: #17cecb;
  --red: #ff4054;
  --orange: #ff8a34;
  --shadow: 0 14px 34px rgba(0, 0, 0, .18);
}

* { box-sizing: border-box; }
html { min-width: 320px; min-height: 100%; background: var(--bg); }
body {
  margin: 0;
  min-width: 320px;
  min-height: 100dvh;
  overflow: hidden;
  color: var(--text);
  background: radial-gradient(circle at 48% -20%, rgba(35, 111, 161, .25), transparent 34%), var(--bg);
  font-family: Inter, "Segoe UI", Arial, sans-serif;
  font-size: var(--font-md);
  line-height: 1.4;
}
body.drawer-open,
body.modal-open { overflow: hidden; }
body.drawer-open .main-scroll,
body.modal-open .main-scroll { overflow: hidden; }
button, input, select, textarea { font: inherit; }
button { color: inherit; }
button, [role="button"] { -webkit-tap-highlight-color: transparent; }
img, svg, canvas { max-width: 100%; }
h1, h2, h3, h4, p { overflow-wrap: anywhere; }
a { color: var(--blue); }
[hidden] { display: none !important; }
.rbac-hidden { display: none; }

:focus-visible {
  outline: 2px solid #71aaff;
  outline-offset: 2px;
}

/* Authentication */
.login-screen {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 620px);
  align-items: center;
  gap: clamp(36px, 7vw, 140px);
  min-height: 100dvh;
  padding: max(clamp(24px, 5vw, 88px), env(safe-area-inset-top)) max(clamp(20px, 5vw, 88px), env(safe-area-inset-right)) max(clamp(24px, 5vw, 88px), env(safe-area-inset-bottom)) max(clamp(20px, 5vw, 88px), env(safe-area-inset-left));
  overflow: auto;
  background: radial-gradient(circle at 22% 50%, rgba(28, 93, 146, .2), transparent 34%), linear-gradient(130deg, #061321, #081a2d 48%, #061321);
}
.login-screen::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .18;
  background-image: linear-gradient(rgba(78, 137, 185, .11) 1px, transparent 1px), linear-gradient(90deg, rgba(78, 137, 185, .11) 1px, transparent 1px);
  background-size: 84px 84px;
}
.login-brand, .login-card { position: relative; z-index: 1; min-width: 0; }
.login-brand { display: grid; place-items: center; }
.login-brand img { width: min(100%, 520px); height: auto; }
.login-card {
  width: 100%;
  overflow: hidden;
  border: 1px solid rgba(154, 185, 210, .34);
  border-radius: 16px;
  background: linear-gradient(145deg, rgba(24, 45, 67, .98), rgba(12, 30, 48, .98));
  box-shadow: 0 32px 80px rgba(0, 0, 0, .42);
}
.login-card-body { padding: clamp(28px, 4vw, 58px); }
.login-card h1 { margin: 0; font-size: clamp(1.8rem, 2vw + 1rem, 3rem); line-height: 1.12; letter-spacing: -.035em; }
.login-card h1 + p { margin: 12px 0 clamp(24px, 3vw, 38px); color: #aebed0; }
.login-card form { display: grid; }
.login-card form > label { margin: 0 0 8px; }
.login-card input[type="text"], .login-card input[type="password"] {
  width: 100%;
  min-height: 52px;
  padding: 0 16px;
  border: 1px solid var(--line-strong);
  border-radius: 9px;
  color: #fff;
  background: #0b1e31;
}
.login-card input[type="text"] { margin-bottom: 22px; }
.login-card input:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(52, 135, 255, .2); outline: 0; }
.login-card input::placeholder { color: #8398aa; }
.password-control { position: relative; }
.password-control input { padding-right: 58px; }
.password-control button {
  position: absolute;
  top: 4px;
  right: 5px;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  cursor: pointer;
}
.password-control button:hover { background: rgba(255,255,255,.07); }
.login-error { min-height: 36px; margin: 10px 0 4px; color: #ff8490; font-size: var(--font-sm); }
.login-submit {
  min-height: 52px;
  border: 1px solid #4795ff;
  border-radius: 9px;
  background: linear-gradient(#378dff, #1f67dc);
  box-shadow: 0 12px 25px rgba(31, 103, 220, .22);
  font-weight: 800;
  letter-spacing: .04em;
  cursor: pointer;
}
.login-submit:hover { filter: brightness(1.08); }
.login-submit:disabled { cursor: wait; opacity: .68; }
.login-card footer { padding: 18px; border-top: 1px solid var(--line); color: #aebed0; text-align: center; }
.login-card footer span { color: #4fd095; }
.auth-ready .login-screen { display: none; }
.auth-pending .login-screen { visibility: hidden; }
.auth-pending .app, .auth-required .app { display: none; }

/* App shell */
.app {
  display: grid;
  grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
  width: 100%;
  height: 100dvh;
  overflow: hidden;
}
.sidebar {
  position: relative;
  z-index: 30;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto auto;
  width: 100%;
  min-width: 0;
  height: 100dvh;
  overflow: hidden;
  border-right: 1px solid var(--line);
  background: linear-gradient(180deg, #071827, #061522);
}
.brand {
  position: relative;
  display: grid;
  min-height: clamp(110px, 16vh, 158px);
  padding: clamp(14px, 1.6vw, 24px);
  place-items: center;
}
.brand-home {
  width: 100%;
  min-height: 44px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}
.brand-logo { display: block; width: 100%; height: auto; max-height: 116px; object-fit: contain; }
.sidebar .sidebar-close { display: none; position: absolute; top: 12px; right: 10px; }
.nav {
  min-height: 0;
  padding: 8px clamp(10px, 1vw, 16px);
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
}
.nav-item {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr) auto;
  align-items: center;
  width: 100%;
  min-height: 46px;
  margin: 0 0 5px;
  padding: 8px 12px;
  border: 1px solid transparent;
  border-radius: 7px;
  color: #c8d8e6;
  background: transparent;
  text-align: left;
  cursor: pointer;
}
.nav-item > span { display: grid; width: 24px; height: 24px; place-items: center; }
.nav-item svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 1.7; }
.nav-item:hover { color: #fff; background: rgba(52, 135, 255, .12); }
.nav-item.active, .nav-item[aria-current="page"] { color: #fff; background: linear-gradient(90deg, #215cae, #1d54a1); }
.badge { min-width: 20px; padding: 2px 6px; border-radius: 999px; color: #fff; background: var(--red); font-size: .7rem; text-align: center; }
.meter-total {
  margin: 10px clamp(10px, 1vw, 16px);
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(15, 39, 57, .9);
}
.meter-total > span { display: block; margin-bottom: 10px; color: var(--muted); font-size: var(--font-xs); text-transform: uppercase; }
.side-summary-status { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.side-summary-status p { display: grid; grid-template-columns: auto 1fr; gap: 1px 7px; margin: 0; padding: 8px; border: 1px solid var(--line); border-radius: 7px; }
.side-summary-status em, .ok, .bad, .idle { display: inline-block; width: 10px; height: 10px; border-radius: 50%; }
.side-summary-status em { margin-top: 4px; }
.ok { background: var(--green); box-shadow: 0 0 8px rgba(53,202,73,.7); }
.bad { background: var(--red); }
.idle { background: #6e8799; }
.side-summary-status .warn { background: var(--yellow); }
.side-summary-status .unknown { background: #6e8799; }
.side-summary-status span { color: #c5d3df; font-size: var(--font-xs); }
.side-summary-status strong { grid-column: 2; font-size: 1.35rem; }
.app[data-view="system"] .side-summary-status { gap: 6px; }
.app[data-view="system"] .side-summary-status p {
  grid-template-columns: 8px minmax(0, 1fr);
  gap: 2px 4px;
  padding: 6px 5px;
  overflow-wrap: normal;
  word-break: normal;
}
.app[data-view="system"] .side-summary-status em {
  width: 8px;
  height: 8px;
  margin-top: 2px;
}
.app[data-view="system"] .side-summary-status span {
  font-size: 9px;
  line-height: 1.15;
  overflow-wrap: normal;
  word-break: normal;
}
.app[data-view="system"] .side-summary-status strong {
  min-width: 0;
  font-size: 14px;
  line-height: 1.2;
  overflow-wrap: normal;
  word-break: normal;
}
.signature { padding: 4px 16px max(12px, env(safe-area-inset-bottom)); color: #aebccc; font-size: var(--font-xs); }
.sidebar-overlay {
  position: fixed;
  inset: 0;
  z-index: 25;
  border: 0;
  background: rgba(0, 8, 16, .7);
  backdrop-filter: blur(2px);
}
.main {
  display: grid;
  grid-template-rows: var(--topbar-height) minmax(0, 1fr);
  min-width: 0;
  min-height: 0;
  overflow: hidden;
}
.topbar {
  z-index: 15;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: clamp(8px, 1vw, 16px);
  min-width: 0;
  padding: 0 var(--page-padding);
  border-bottom: 1px solid var(--line);
  background: rgba(5, 20, 32, .94);
}
.page-title { min-width: 0; margin: 0; font-size: var(--font-xl); line-height: 1.15; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.icon-button {
  display: inline-grid;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid transparent;
  border-radius: 7px;
  background: transparent;
  place-items: center;
  cursor: pointer;
}
.icon-button:hover { border-color: var(--line-strong); background: rgba(255,255,255,.04); }
.menu-icon { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 2; }
.topbar-menu-button { visibility: hidden; }
.topbar-tools {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: clamp(7px, .7vw, 12px);
  min-width: 0;
  white-space: nowrap;
  font-size: var(--font-sm);
}
.topbar-api-status { display: inline-flex; align-items: center; gap: 7px; }
.topbar-status-dot { flex: 0 0 auto; }
.status-dot { width: 13px; height: 13px; border-radius: 50%; background: var(--green); box-shadow: 0 0 12px rgba(53,202,73,.8); }
.app[data-api-status="loading"] .status-dot,
.app[data-api-status="stale"] .status-dot { background: var(--yellow); box-shadow: 0 0 12px rgba(255,195,41,.65); }
.app[data-api-status="offline"] .status-dot { background: var(--red); box-shadow: 0 0 12px rgba(255,64,84,.7); }
.api-status strong { color: var(--green); }
.app[data-api-status="loading"] .api-status strong,
.app[data-api-status="stale"] .api-status strong { color: var(--yellow); }
.app[data-api-status="offline"] .api-status strong { color: var(--red); }
.topbar-clock { color: #d5e3ee; }
.topbar-user-avatar, .user-avatar { flex: 0 0 auto; width: 36px; height: 36px; border-radius: 50%; background: linear-gradient(145deg, #ecf4fa, #86a2b8); }
.topbar-user-menu-button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  min-height: 44px;
  padding: 3px;
  border: 1px solid transparent;
  border-radius: 8px;
  color: inherit;
  background: transparent;
  cursor: pointer;
}
.topbar-user-menu-button:hover,
.topbar-user-menu-button[aria-expanded="true"] { border-color: var(--line-strong); background: rgba(255,255,255,.045); }
.topbar-user-name { max-width: 130px; overflow: hidden; text-overflow: ellipsis; }
.topbar-user-role {
  padding: 4px 10px;
  border: 1px solid rgba(53,202,73,.4);
  border-radius: 999px;
  color: #62e374;
  background: rgba(53,202,73,.08);
  font-size: var(--font-xs);
  font-weight: 700;
  text-transform: uppercase;
}
.topbar-user-popover {
  position: absolute;
  top: calc(100% + 10px);
  right: 50px;
  z-index: 40;
  display: grid;
  gap: 6px;
  width: min(250px, calc(100vw - 20px));
  padding: 14px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  color: var(--text);
  background: #0b2639;
  box-shadow: 0 16px 34px rgba(0,0,0,.4);
  white-space: normal;
}
.topbar-user-popover small,
.topbar-user-popover time { color: var(--muted); font-size: var(--font-xs); }
.topbar-user-popover strong { overflow-wrap: anywhere; }
.topbar-user-popover > span { color: #62e374; font-size: var(--font-xs); font-weight: 700; text-transform: uppercase; }
.logout-button {
  min-width: 44px;
  min-height: 40px;
  padding: 0 12px;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: rgba(8,25,40,.75);
  cursor: pointer;
}
.logout-button:hover { border-color: var(--blue); }
.main-scroll {
  min-width: 0;
  min-height: 0;
  padding: var(--page-padding);
  overflow-x: hidden;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-gutter: stable;
}
.content-shell { min-width: 0; }
.content-shell > * { min-width: 0; }
.content-shell.is-loading { cursor: progress; }
.view-feedback { margin: 0 0 var(--page-gap); padding: 10px 12px; border: 1px solid rgba(255,64,84,.45); border-radius: var(--radius); color: #ffb0b9; background: rgba(255,64,84,.08); }

/* Shared components */
.panel {
  min-width: 0;
  padding: var(--panel-padding);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(155deg, rgba(16,45,66,.96), rgba(9,31,47,.96));
  box-shadow: var(--shadow);
  container-type: inline-size;
}
.panel h2, .panel h3, .panel h4 { margin: 0; }
.panel h3 { font-size: var(--font-md); text-transform: uppercase; }
.panel-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  min-width: 0;
  margin-bottom: 10px;
}
.panel-header > * { min-width: 0; }
.panel-header p, .chart-subtitle { margin: 3px 0 0; color: var(--muted); font-size: var(--font-sm); }
.panel-link {
  flex: 0 0 auto;
  min-height: 36px;
  padding: 0 10px;
  border: 1px solid rgba(52,135,255,.45);
  border-radius: 6px;
  color: #65a5ff;
  background: rgba(52,135,255,.07);
  cursor: pointer;
}
.primary-btn, .secondary-btn, .primary-button,
.meter-back-btn, .meter-test-connection, .trend-reset,
.alarm-ack, .report-download, .report-regenerate, .report-clear,
.edit-user, .reset-user-password, .remove-user, .test-device {
  min-height: 40px;
  padding: 0 13px;
  border: 1px solid rgba(52,135,255,.55);
  border-radius: 6px;
  color: #fff;
  background: linear-gradient(#3487ff, #2469d6);
  cursor: pointer;
}
.secondary-btn, .meter-back-btn, .trend-reset {
  color: #b9d8fa;
  background: #071b2a;
}
.primary-btn:hover, .primary-button:hover, .secondary-btn:hover { filter: brightness(1.1); }
button:disabled { cursor: not-allowed; opacity: .55; }
input, select, textarea {
  min-width: 0;
  min-height: var(--control-height);
  padding: 8px 11px;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  color: var(--text);
  background: #071b2a;
}
label { min-width: 0; }
select { max-width: 100%; }
.muted-text { color: var(--muted); }
.green-text, .online-text { color: var(--green); }
.yellow-text, .warning-text { color: var(--yellow); }
.purple-text { color: var(--purple); }
.cyan-text { color: var(--cyan); }
.red-text, .offline-text { color: var(--red); }
.blue-text { color: var(--blue); }

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--page-gap);
  min-width: 0;
  margin-bottom: var(--page-gap);
  container-type: inline-size;
}
.kpi {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: start;
  gap: clamp(8px, .7vw, 14px);
  min-width: 0;
  min-height: clamp(96px, 10vh, 122px);
  padding: clamp(12px, .9vw, 18px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(150deg, #102c40, #0b2132);
}
.kpi > div { min-width: 0; }
.kpi-icon { font-size: var(--font-lg); line-height: 1; }
.kpi small { display: block; color: currentColor; font-size: var(--font-xs); text-transform: uppercase; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.kpi strong { display: block; margin: 7px 0 2px; font-size: var(--font-xl); line-height: 1.05; white-space: nowrap; }
.kpi strong em { font-size: .85em; font-weight: 500; }
.kpi p { margin: 0; color: #d0deea; font-size: var(--font-xs); }
.kpi.blue { color: var(--blue); } .kpi.green { color: var(--green); } .kpi.yellow { color: var(--yellow); }
.kpi.purple { color: var(--purple); } .kpi.cyan { color: var(--cyan); } .kpi.silver { color: #edf5ff; }

.chart {
  display: block;
  width: 100%;
  height: var(--chart-height);
  min-height: 220px;
  border-radius: 4px;
  touch-action: pan-y;
}
.chart.trend-zoom-active { cursor: grab; }
.chart.trend-zoom-active { touch-action: pan-y; }
@media (pointer: fine) { .chart.trend-zoom-active { touch-action: none; } }
.chart.trend-zoom-panning { cursor: grabbing; }
.chart-tooltip-host { position: relative; }
.chart-tooltip {
  position: absolute;
  z-index: 20;
  max-width: min(280px, calc(100% - 16px));
  padding: 8px 10px;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  color: #fff;
  background: rgba(3, 16, 27, .96);
  box-shadow: 0 8px 20px rgba(0,0,0,.3);
  font-size: var(--font-xs);
  pointer-events: none;
  opacity: 0;
}
.chart-tooltip.visible { opacity: 1; }
.legend { display: flex; flex-wrap: wrap; gap: 7px 18px; margin-top: 7px; color: #dbe9f4; font-size: var(--font-xs); }
.legend span::before { content: ""; display: inline-block; width: 20px; height: 4px; margin-right: 7px; border-radius: 3px; vertical-align: middle; background: currentColor; }
.blue-key { color: var(--blue); } .green-key { color: var(--green); } .yellow-key { color: var(--yellow); }
.purple-key { color: var(--purple); } .cyan-key { color: var(--cyan); }

.table-scroll, .compact-table-wrap, .meter-parameters-table-wrap, .modbus-table-scroll,
.system-table-scroll, .audit-table-scroll, .alarm-table-scroll, .recent-reports-scroll {
  min-width: 0;
  max-width: 100%;
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  scrollbar-width: thin;
}
table { width: 100%; border-collapse: collapse; color: var(--text); font-size: var(--font-sm); }
th, td { min-width: 0; padding: 9px 8px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: middle; overflow-wrap: anywhere; }
th { color: #aabed0; background: rgba(5,23,36,.75); font-size: var(--font-xs); font-weight: 600; text-transform: uppercase; white-space: nowrap; }
tbody tr:hover { background: rgba(52,135,255,.06); }
.empty-row td, .empty-user-row td { padding: 24px 10px; color: var(--muted); text-align: center; }
.read-only-action { color: var(--muted); font-size: var(--font-xs); }

/* Date range */
.date-range-filter-host { min-width: 0; container-type: inline-size; }
.date-range-filter { min-width: 0; }
.date-range-control {
  display: grid;
  grid-template-columns: minmax(170px, auto) minmax(0, 1fr);
  align-items: center;
  gap: 12px;
  min-width: 0;
  padding: 6px;
  border: 1px solid #2587ff;
  border-radius: 8px;
  background: #071c2b;
}
.date-range-intro { display: flex; align-items: center; gap: 9px; min-width: 0; padding: 0 5px; font-weight: 700; }
.date-range-calendar-icon { flex: 0 0 auto; width: 34px; height: 34px; border: 1px solid var(--line-strong); border-radius: 6px; }
.date-range-calendar-icon::before { content: ""; display: block; width: 15px; height: 14px; margin: 9px auto 0; border: 2px solid #cbe1f2; border-radius: 2px; }
.date-range-title { white-space: nowrap; }
.date-range-fields { display: grid; grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr) auto; align-items: center; gap: 8px; min-width: 0; }
.date-range-field { display: grid; grid-template-columns: auto minmax(0, 1fr); align-items: center; gap: 9px; min-width: 0; min-height: 40px; padding: 0 10px; border: 1px solid var(--line-strong); border-radius: 6px; }
.date-range-field > span { color: #a9bfd0; font-size: var(--font-xs); text-transform: uppercase; }
.date-range-field input { width: 100%; min-height: 38px; padding: 0; border: 0; background: transparent; }
.date-range-divider { color: #91b5cf; }
.date-range-apply { min-width: 92px; min-height: 40px; }
.date-range-error { display: block; min-height: 0; margin-top: 4px; color: #ff8a97; font-size: var(--font-xs); }

@container (max-width: 620px) {
  .panel-header { flex-direction: column; align-items: stretch; }
  .panel-link { align-self: flex-start; }
  .date-range-control { grid-template-columns: 1fr; }
  .date-range-fields { grid-template-columns: 1fr; }
  .date-range-divider { display: none; }
  .date-range-apply { width: 100%; min-height: 44px; }
}

@container (max-width: 310px) {
  .kpi { grid-template-columns: 1fr; }
}

/* Dashboard */
.dashboard-overview-grid {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(280px, 1.25fr);
  grid-template-areas:
    "chart summary"
    "chart alarms";
  gap: var(--panel-gap);
  min-width: 0;
  align-items: stretch;
}
.dash-chart { grid-area: chart; display: grid; grid-template-rows: auto auto minmax(240px, 1fr) auto; min-height: min(68vh, 690px); }
.dash-summary { grid-area: summary; }
.recent-alarms { grid-area: alarms; }
.app[data-view="dashboard"] .dash-table,
.app[data-view="dashboard"] .dash-net,
.app[data-view="dashboard"] .dashboard-gauges,
.app[data-view="dashboard"] .days-chart,
.app[data-view="dashboard"] .status-panel { display: none; }
.dash-chart .date-range-panel-toolbar { margin-bottom: 10px; }
.dash-chart .chart { height: 100%; min-height: clamp(320px, 46vh, 540px); }
.number-row { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin-top: 24px; }
.number-row p { min-width: 0; margin: 0; color: #e4eef6; font-size: var(--font-sm); overflow-wrap: normal; word-break: normal; }
.number-row strong { display: block; margin-bottom: 5px; font-size: var(--font-xl); }
.event-list { margin-top: 10px; }
.event-list p { display: grid; grid-template-columns: minmax(68px, auto) minmax(0, 1fr); gap: 10px; margin: 0; padding: 8px 0; border-bottom: 1px solid var(--line); font-size: var(--font-sm); }
.event-list p span { align-self: start; min-width: 68px; padding: 2px 8px; border: 1px solid currentColor; border-radius: 999px; text-align: center; font-size: var(--font-xs); }
.event-list .warn { color: var(--yellow); background: transparent; }
.event-list .danger { color: var(--red); background: transparent; }

/* Realtime */
.realtime-ops-grid {
  display: grid;
  grid-template-columns: minmax(320px, .95fr) minmax(0, 1.75fr);
  grid-template-areas:
    "flow trend"
    "alarms alarms"
    "machines health";
  gap: var(--panel-gap);
  min-width: 0;
}
.flow-panel { grid-area: flow; }
.trend-panel { grid-area: trend; }
.realtime-alarms { grid-area: alarms; }
.realtime-machines { grid-area: machines; }
.realtime-health { grid-area: health; }
.scada-flow-svg { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; min-height: 250px; }
.scada-flow-svg > rect:first-of-type { fill: transparent; }
.scada-flow-line { fill: none; stroke-width: 3; filter: url(#lineGlow); transition: opacity .2s; }
.scada-flow-line.flow-muted { opacity: .18; filter: none; }
.scada-flow-icon { fill: none; stroke-width: 3; filter: url(#iconGlow); }
.scada-flow-label { font-size: 13px; font-weight: 700; }
.scada-flow-value { fill: #f4f9fe; font-size: 21px; font-weight: 800; }
.flow-panel.has-operating-alarm { border-color: rgba(255,64,84,.55); }
.realtime-trend-head { align-items: center; }
.realtime-trend-head > div { display: flex; align-items: center; gap: 8px; }
.historical-range-label { padding: 7px 10px; border: 1px solid var(--line); border-radius: 6px; color: #9bc4e5; font-size: var(--font-xs); }
.trend-panel .chart { height: clamp(270px, 33vh, 410px); }
.compact-table-wrap table { min-width: 680px; }
.realtime-machines { min-width: 0; }
.realtime-health { min-width: 0; }
.health-value-list { display: grid; gap: 8px; }
.health-value-list > div { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 10px; min-height: 50px; padding: 10px 12px; border: 1px solid var(--line); border-radius: 6px; }
.health-value-list span { color: #c2d3e0; }
.health-value-list strong { text-align: right; font-size: var(--font-lg); }
.machine-state, .severity-badge, .alarm-status, .system-status-pill, .audit-result,
.device-status, .report-status, .role-pill, .user-status {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 2px 9px;
  border: 1px solid currentColor;
  border-radius: 999px;
  font-size: var(--font-xs);
  font-weight: 700;
  line-height: 1.15;
  white-space: nowrap;
}
.machine-state.online, .machine-state.running, .user-status.online, .device-status.online,
.report-status.ready, .system-status-pill.online, .system-status-pill.healthy,
.audit-result.success, .audit-result.allowed, .alarm-status.acknowledged { color: var(--green); }
.system-status-pill[data-status="online"],
.system-status-pill[data-status="healthy"] { color: var(--green); }
.machine-state.offline, .user-status.offline, .device-status.offline,
.report-status.failed, .system-status-pill.offline, .system-status-pill.critical,
.audit-result.denied, .audit-result.failed, .audit-result.failure, .audit-result.error,
.audit-result.authentication_denied, .audit-result.permission_denied,
.severity-badge.critical, .alarm-status.active { color: var(--red); }
.system-status-pill[data-status="offline"],
.system-status-pill[data-status="critical"] { color: var(--red); }
.machine-state.idle, .machine-state.unconfigured, .device-status.not-configured, .report-status.processing,
.system-status-pill.unknown, .audit-result.unknown { color: #93a9b9; }
.system-status-pill[data-status="unknown"],
.system-status-pill[data-status="unavailable"] { color: #93a9b9; }
.severity-badge.warning, .audit-result.rate_limited { color: var(--yellow); }
.system-status-pill[data-status="degraded"],
.system-status-pill[data-status="warning"],
.system-status-pill[data-status="partial"] { color: var(--yellow); }
.severity-badge.info, .alarm-status.cleared { color: #54a8ff; }
.device-status.testing { color: var(--blue); border-color: rgba(52,135,255,.55); background: rgba(52,135,255,.1); }
.last-communication { display: inline-flex; align-items: center; gap: 7px; color: #b9cbd8; font-variant-numeric: tabular-nums; }
.last-communication i { flex: 0 0 auto; width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 7px rgba(53,202,73,.65); }
.realtime-machine-row[data-meter-id] { cursor: pointer; }

/* Meters SLD */
.meters-grid { min-width: 0; }
.sld-panel { overflow: hidden; }
.sld-header { align-items: center; }
.sld-header p { margin: 3px 0 0; color: #8eb4d1; }
.sld-legend { display: flex; flex-wrap: wrap; gap: 8px 16px; color: #b8cad8; font-size: var(--font-sm); }
.sld-legend span { display: inline-flex; align-items: center; gap: 6px; }
.sld-canvas {
  min-width: 0;
  padding: clamp(14px, 2vw, 30px);
  border-radius: 7px;
  background-color: rgba(7, 28, 43, .72);
  background-image: radial-gradient(rgba(52,135,255,.18) 1px, transparent 1px);
  background-size: 25px 25px;
}
.sld-section-label { margin: 0 0 12px; color: #75a5c9; font-size: var(--font-sm); font-weight: 800; letter-spacing: .08em; text-align: center; }
.sld-source-row { display: grid; grid-template-columns: repeat(4, minmax(150px, 1fr)); gap: clamp(12px, 2vw, 28px); width: min(100%, 1040px); margin: 0 auto; }
.sld-node {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  grid-template-areas:
    "icon title status"
    "icon id status"
    "icon reading reading";
  align-items: center;
  gap: 3px 10px;
  min-width: 0;
  min-height: 112px;
  padding: 14px;
  border: 1px solid #245574;
  border-radius: 8px;
  color: #dce9f3;
  background: rgba(12,40,58,.94);
  text-align: left;
  cursor: pointer;
}
.sld-node:hover, .sld-node:focus-visible { border-color: var(--blue); background: #102f46; }
.sld-node.is-online { border-color: rgba(53,202,73,.65); }
.sld-node.is-offline { border-color: rgba(255,64,84,.6); }
.sld-node-icon { grid-area: icon; display: grid; width: 48px; height: 48px; border: 1px solid #3276aa; border-radius: 7px; color: #79b8ff; place-items: center; font-size: 1.05rem; font-weight: 800; }
.sld-node-name, .sld-node > strong { grid-area: title; min-width: 0; font-weight: 800; white-space: normal; overflow-wrap: anywhere; }
.sld-node-id, .sld-node > small { grid-area: id; min-width: 0; color: #7896ac; font-size: var(--font-xs); overflow-wrap: anywhere; }
.sld-reading { grid-area: reading; color: #d8e5ef; font-weight: 700; }
.sld-reading em { color: #8ea8bb; font-size: .8em; }
.sld-status-dot { grid-area: status; align-self: start; width: 10px; height: 10px; border-radius: 50%; background: #70899a; }
.is-online .sld-status-dot { background: var(--green); box-shadow: 0 0 9px rgba(53,202,73,.85); }
.is-offline .sld-status-dot { background: var(--red); }
.sld-sources .sld-node::after, .sld-machine-grid .sld-node::before { content: ""; position: absolute; left: 50%; width: 2px; background: #2e6b92; transform: translateX(-50%); }
.sld-sources .sld-node::after { top: 100%; height: 28px; }
.sld-main-link { height: 28px; margin: 0 3%; border-bottom: 3px solid #268aff; }
.sld-busbar { display: flex; align-items: center; justify-content: center; gap: 12px; min-height: 36px; color: #4f9fff; font-size: var(--font-sm); }
.sld-busbar strong { color: #fff; }
.sld-loads { min-width: 0; }
.sld-machine-grid { display: grid; grid-template-columns: repeat(6, minmax(110px, 1fr)); gap: 16px 10px; min-width: 0; }
.sld-machine-grid .sld-node { grid-template-columns: 1fr auto; grid-template-areas: "icon status" "title title" "id id" "reading reading"; justify-items: center; min-height: 118px; padding: 12px 8px; text-align: center; }
.sld-machine-grid .sld-node::before { bottom: 100%; height: 22px; }
.sld-machine-grid .sld-node-icon { width: 34px; height: 34px; }

/* Meter detail */
.meter-detail-page { display: grid; gap: var(--panel-gap); min-width: 0; }
.meter-detail-toolbar {
  display: grid;
  grid-template-columns: auto auto minmax(0, 1fr);
  align-items: start;
  gap: var(--page-gap);
  min-width: 0;
}
.meter-back-btn { display: inline-flex; align-items: center; gap: 7px; min-height: 44px; }
.meter-back-btn span { font-size: 1.6rem; line-height: 1; }
.meter-connection-actions { display: flex; align-items: center; gap: 8px; min-width: 0; }
#meterTestFeedback { color: var(--muted); font-size: var(--font-xs); }
.meter-detail-header { display: grid; grid-template-columns: minmax(220px, 1fr) minmax(0, 2.1fr); align-items: center; gap: var(--page-gap); }
.meter-detail-header h2 { font-size: var(--font-xl); }
.meter-detail-header p { margin: 4px 0 0; color: #9cb5c9; }
.meter-detail-meta { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.meter-detail-meta span { display: grid; gap: 3px; min-width: 0; color: #8eb1ca; font-size: var(--font-xs); text-transform: uppercase; }
.meter-detail-meta b { color: #fff; font-size: var(--font-md); text-transform: none; overflow-wrap: anywhere; }
.meter-detail-empty { color: var(--muted); }
.meter-parameters-heading, .meter-chart-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 8px; }
.meter-parameters-table { min-width: 700px; }
.meter-parameters-table th:not(:first-child), .meter-parameters-table td:not(:first-child) { text-align: right; }
.meter-parameters-table .meter-parameter-total td { font-weight: 700; }
.meter-detail-charts {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--panel-gap);
  min-width: 0;
  margin-top: var(--panel-gap);
}
.meter-detail-charts > :first-child { grid-column: auto; }
.meter-detail-charts .chart { height: clamp(250px, 31vh, 390px); }

/* Energy analysis */
.analysis-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(280px, .72fr);
  gap: var(--panel-gap);
  min-width: 0;
  align-items: stretch;
}
.analysis-date-range { grid-column: 1 / -1; min-width: 0; }
.analysis-overview { min-width: 0; }
.analysis-overview .chart { height: clamp(300px, 39vh, 470px); }
.supply-mix-panel { min-width: 0; }
.supply-mix-content { display: grid; grid-template-columns: minmax(120px, .8fr) minmax(0, 1.2fr); align-items: start; gap: 18px; margin-top: 20px; }
.supply-mix-panel.is-empty .supply-mix-content { grid-template-columns: minmax(0, 1fr); }
.supply-mix-panel.is-empty .big-donut { display: none; }
.donut {
  position: relative;
  display: grid;
  width: clamp(120px, 10vw, 168px);
  aspect-ratio: 1;
  border: clamp(16px, 1.4vw, 24px) solid var(--blue);
  border-radius: 50%;
  place-items: center;
}
.donut span { text-align: center; font-size: var(--font-xs); }
.metric-list { min-width: 0; }
.metric-list p { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 8px; margin: 0; padding: 9px 0; border-bottom: 1px solid var(--line); }
.metric-list i, .source-card i { width: 14px; height: 14px; border-radius: 3px; }
.blue-box { background: var(--blue); } .green-box { background: var(--green); } .yellow-box { background: var(--yellow); }
.purple-box { background: var(--purple); } .cyan-box { background: var(--cyan); }
.supply-mix-bar { display: flex; height: 32px; overflow: hidden; border-radius: 6px; background: #071b2a; }
.supply-mix-bar > span { display: grid; min-width: 0; color: #fff; font-size: var(--font-xs); font-weight: 700; place-items: center; overflow: hidden; }
.blue-seg { background: var(--blue); } .green-seg { background: var(--green); } .yellow-seg { background: var(--yellow); }
.purple-seg { background: var(--purple); } .cyan-seg { background: var(--cyan); }
.supply-empty-state { display: grid; gap: 6px; padding: 16px; border: 1px dashed var(--line-strong); border-radius: var(--radius); color: var(--muted); text-align: center; }
.supply-empty-state > span { font-size: 2rem; }
.heatmap-panel, .analysis-table { min-height: 0; }
.heatmap-panel { grid-column: 1; }
.analysis-table { grid-column: 2; }
.heatmap { min-width: 0; margin-top: 12px; }
.heatmap-scroll { width: 100%; overflow: visible; }
.heatmap-grid {
  display: grid;
  grid-template-columns: minmax(68px, 92px) repeat(24, minmax(0, 1fr));
  gap: 3px;
  width: 100%;
  min-width: 0;
  min-height: 44px;
  align-items: center;
}
.heatmap-grid:focus-visible { outline: 2px solid #78b0ff; outline-offset: 4px; }
.heatmap-corner, .heatmap-hour { min-width: 0; color: #9bb5c8; font-size: clamp(.58rem, .5rem + .15vw, .72rem); }
.heatmap-hour { text-align: center; }
.heatmap-day { min-width: 0; padding-right: 3px; color: #bdcfdd; font-size: clamp(.58rem, .5rem + .15vw, .75rem); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.heatmap-cell { display: block; width: 100%; min-width: 0; aspect-ratio: 1 / .95; min-height: 12px; padding: 0; border: 1px solid rgba(52,135,255,.35); border-radius: 3px; background: #12334b; cursor: pointer; }
.heatmap-cell[data-lightness] { background: hsl(211 86% var(--heatmap-lightness, 18%)); }
.heatmap-cell.unavailable { border-color: var(--line); background: rgba(91,119,139,.08); }
.heatmap-cell.is-active { outline: 1px solid rgba(255,255,255,.8); outline-offset: -1px; }
.heatmap-touch-controls { display: none; }
.heatmap-detail { grid-column: 1 / -1; margin: 8px 0 0; color: #b7c9d7; font-size: var(--font-xs); }
.heatmap-message, .panel-message { margin: 18px 0; color: var(--muted); }
.heat-scale { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 10px; margin-top: 14px; color: var(--muted); font-size: var(--font-xs); }
.heat-scale i { height: 10px; border-radius: 999px; background: linear-gradient(90deg, #12334b, var(--blue)); }
.analysis-table .table-scroll { height: 100%; }
.analysis-table table { min-width: 680px; }
.analysis-table tbody tr:last-child { font-weight: 800; }

.compare-placeholder { min-height: 260px; display: grid; place-content: center; text-align: center; }

/* Settings */
.settings-page, .users-page, .system-page, .alarms-page, .reports-page { display: grid; gap: var(--panel-gap); min-width: 0; }
.settings-tabs {
  display: flex;
  gap: 4px;
  max-width: 100%;
  padding: 5px;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #091f30;
  scrollbar-width: thin;
}
.settings-tabs button {
  flex: 1 0 auto;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: 6px;
  color: #b9cad8;
  background: transparent;
  cursor: pointer;
}
.settings-tabs button.active, .settings-tabs button[aria-selected="true"] { color: #fff; border-color: rgba(52,135,255,.5); background: rgba(52,135,255,.18); }
.settings-sections, .settings-section { min-width: 0; }
.settings-section:not(.active) { display: none; }
.settings-section-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 20px; }
.settings-section-header h3 { margin: 0; }
.settings-section-header p { margin: 4px 0 0; color: var(--muted); }
.settings-state { flex: 0 0 auto; padding: 5px 9px; border: 1px solid var(--line); border-radius: 999px; color: #9fc6e2; font-size: var(--font-xs); }
.settings-form-grid, .threshold-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}
.settings-form-grid label, .threshold-grid > label, .backup-settings-grid > label, .audit-filters label,
.report-filter-fields label, .custom-report-fields label {
  display: grid;
  gap: 7px;
  min-width: 0;
  color: #c1d2df;
  font-size: var(--font-sm);
}
.settings-form-grid input, .settings-form-grid select, .threshold-grid input,
.backup-settings-grid input, .backup-settings-grid select { width: 100%; }
.input-unit { display: grid; grid-template-columns: minmax(0, 1fr) auto; min-width: 0; }
.input-unit input { border-radius: 6px 0 0 6px; }
.input-unit span { display: grid; min-width: 54px; padding: 0 10px; border: 1px solid var(--line-strong); border-left: 0; border-radius: 0 6px 6px 0; color: #99b2c5; background: #0a2132; place-items: center; }
.settings-footer { display: flex; align-items: center; justify-content: flex-end; gap: 12px; margin-top: 20px; }
.settings-feedback { flex: 1 1 auto; min-width: 0; color: #9fc3dd; }
.settings-feedback.error { color: #ff7684; }
.modbus-table-scroll table { min-width: 1080px; }
.backup-settings-grid { display: grid; grid-template-columns: minmax(240px, 1.5fr) repeat(2, minmax(150px, .75fr)); gap: 16px; }
.backup-retention-help { display: block; margin-top: 7px; color: var(--muted); font-size: var(--font-xs); line-height: 1.35; }
.backup-scheduler-status { margin: 14px 0 0; padding: 9px 11px; border: 1px solid var(--line); border-radius: 8px; color: #9fc3dd; background: rgba(5,22,35,.35); font-size: var(--font-sm); }
.backup-scheduler-status[data-state="disabled"] { color: var(--muted); }
.backup-system-card.has-pending-changes .backup-save { border-color: rgba(255,176,32,.8); box-shadow: 0 0 0 1px rgba(255,176,32,.18); }
.backup-option { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 13px; border: 1px solid var(--line); border-radius: 7px; }
.backup-option h4, .backup-option p { margin: 0; }
.backup-option p { color: var(--muted); font-size: var(--font-xs); }
.settings-switch { position: relative; flex: 0 0 auto; width: 52px; height: 44px; padding: 0; border: 0; border-radius: 999px; background: transparent; cursor: pointer; }
.settings-switch:disabled { cursor: not-allowed; opacity: .55; }
.settings-switch::before { content: ""; position: absolute; inset: 8px 0; border: 1px solid var(--line-strong); border-radius: 999px; background: #0b1e2c; }
.settings-switch span { position: absolute; top: 12px; left: 4px; width: 20px; height: 20px; border-radius: 50%; background: #8da5b7; transition: transform .18s; }
.settings-switch.on { background: transparent; }
.settings-switch.on::before { border-color: rgba(53,202,73,.5); background: rgba(53,202,73,.18); }
.settings-switch.on span { background: var(--green); transform: translateX(23px); }
.configuration-actions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin-top: 18px; }
.config-action { display: grid; gap: 4px; min-height: 88px; padding: 14px; border: 1px solid var(--line); border-radius: 7px; color: #fff; background: #0a2132; text-align: left; cursor: pointer; }
.config-action span { color: var(--muted); font-size: var(--font-xs); }
.backup-metrics { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin-top: 14px; }

/* Users */
.page-action { display: flex; justify-content: flex-end; }
.add-user-button { min-height: 44px; }
.users-table-panel { display: grid; grid-template-rows: auto minmax(0, 1fr) auto; min-height: min(68vh, 720px); }
.user-filters { display: grid; grid-template-columns: minmax(220px, 1fr) repeat(2, minmax(150px, 240px)); gap: 12px; margin-bottom: 14px; }
.user-filters input, .user-filters select { width: 100%; }
.users-table-panel .table-scroll { min-width: 0; }
.users-table-panel table { min-width: 840px; }
.user-cell { display: flex; align-items: center; gap: 10px; min-width: 0; }
.avatar-badge { display: grid; flex: 0 0 auto; width: 38px; height: 38px; border-radius: 50%; color: #fff; background: var(--blue); place-items: center; font-weight: 800; }
.color-1 { background: #8b5cf6; } .color-2 { background: #0ea5e9; } .color-3 { background: #14b8a6; }
.color-4 { background: #f59e0b; } .color-5 { background: #ef4444; }
.user-cell p { min-width: 0; margin: 0; }
.user-cell b, .user-cell small { display: block; overflow-wrap: anywhere; }
.user-cell small { color: var(--muted); }
.role-pill.engineer { color: var(--purple); } .role-pill.operator { color: var(--green); } .role-pill.viewer { color: var(--blue); }
.user-actions, .report-actions, .device-actions { display: flex; flex-wrap: wrap; gap: 6px; }
.edit-user, .reset-user-password, .remove-user, .report-download, .report-regenerate, .report-clear, .test-device { min-height: 34px; padding: 0 9px; font-size: var(--font-xs); }
.remove-user, .report-clear { border-color: rgba(255,64,84,.6); color: #ff7684; background: transparent; }
.table-footer { display: flex; justify-content: space-between; gap: 12px; align-self: end; padding-top: 12px; color: #c7d5e0; font-size: var(--font-xs); }

/* System diagnostics */
.system-diagnostics-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 18px; border-left: 3px solid var(--blue); }
.system-diagnostics-toolbar h2 { font-size: var(--font-lg); }
.system-diagnostics-toolbar p { margin: 3px 0 0; color: #86b2d0; font-size: var(--font-sm); }
.system-diagnostics-actions { display: flex; align-items: center; justify-content: flex-end; gap: 12px; color: #8fbad7; font-size: var(--font-xs); }
.system-kpi-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--panel-gap); min-width: 0; }
.system-kpi-card { display: grid; align-content: start; min-height: 132px; border-top: 3px solid #637f93; }
.system-kpi-card[data-status="healthy"], .system-kpi-card[data-status="online"] { border-top-color: var(--green); }
.system-kpi-card[data-status="warning"], .system-kpi-card[data-status="partial"], .system-kpi-card[data-status="degraded"] { border-top-color: var(--yellow); }
.system-kpi-card[data-status="critical"], .system-kpi-card[data-status="offline"] { border-top-color: var(--red); }
.system-kpi-card small { color: #a8bfd0; font-size: var(--font-xs); font-weight: 700; text-transform: uppercase; }
.system-kpi-card strong { margin: 8px 0 3px; font-size: var(--font-xl); }
.system-kpi-card p { margin: 0; color: var(--muted); font-size: var(--font-xs); }
.system-kpi-action button { align-self: end; justify-self: start; min-height: 30px; padding: 0; border: 0; color: #60a5ff; background: transparent; cursor: pointer; }
.system-detail-grid { display: grid; grid-template-columns: minmax(280px, .85fr) minmax(0, 1.4fr); gap: var(--panel-gap); min-width: 0; }
.system-components { grid-column: 1 / -1; }
.system-definition-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 14px; margin: 0; }
.system-definition-list > div { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); gap: 8px; padding: 9px 0; border-bottom: 1px solid var(--line); }
.system-definition-list dt { color: var(--muted); }
.system-definition-list dd { min-width: 0; margin: 0; text-align: right; overflow-wrap: anywhere; }
.system-health-groups { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.system-health-groups section { min-width: 0; }
.system-health-groups h4 { margin-bottom: 5px; color: #9fc9e6; }
.system-definition-list.compact { grid-template-columns: 1fr; }
.system-table-scroll table { min-width: 760px; }
.system-audit { min-width: 0; }
.audit-filters { display: grid; grid-template-columns: repeat(5, minmax(120px, 1fr)) auto; align-items: end; gap: 10px; }
.audit-filter-actions { display: flex; gap: 7px; }
.audit-feedback { min-height: 20px; color: #94b7d0; }
.audit-table-scroll table { min-width: 820px; }
.audit-footer { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-top: 12px; color: var(--muted); }

/* Alarms */
.alarm-summary { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: var(--panel-gap); }
.alarm-summary-card { min-width: 0; min-height: 112px; padding: var(--panel-padding); border: 1px solid var(--line); border-top: 3px solid #6e879a; border-radius: var(--radius); background: linear-gradient(150deg, #102c40, #0b2132); }
.alarm-summary-card small, .alarm-summary-card span { display: block; }
.alarm-summary-card small { color: #b3c6d5; text-transform: uppercase; }
.alarm-summary-card strong { display: block; margin: 6px 0; font-size: var(--font-xl); }
.alarm-summary-card span { color: var(--muted); font-size: var(--font-xs); }
.alarm-summary-card.critical { border-top-color: var(--red); } .alarm-summary-card.critical strong { color: var(--red); }
.alarm-summary-card.warning { border-top-color: var(--yellow); } .alarm-summary-card.warning strong { color: var(--yellow); }
.alarm-summary-card.info { border-top-color: var(--blue); } .alarm-summary-card.info strong { color: var(--blue); }
.alarm-summary-card.acknowledged { border-top-color: var(--green); } .alarm-summary-card.acknowledged strong { color: var(--green); }
.alarm-summary-card.active { border-top-color: var(--purple); } .alarm-summary-card.active strong { color: var(--purple); }
.alarm-filter-bar { display: flex; align-items: center; min-width: 0; overflow-x: auto; padding: 4px; border: 1px solid var(--line); border-radius: var(--radius); background: #0a2030; scrollbar-width: thin; }
.alarm-filter-group { display: flex; gap: 5px; min-width: max-content; }
.alarm-filter { min-height: 40px; padding: 0 15px; border: 1px solid transparent; border-radius: 6px; color: #b9cbd8; background: transparent; cursor: pointer; }
.alarm-filter.active, .alarm-filter[aria-pressed="true"] { color: #fff; border-color: rgba(52,135,255,.5); background: rgba(52,135,255,.18); }
.alarm-table-card { min-width: 0; }
.alarm-table-scroll table { min-width: 980px; }
.live-indicator { display: inline-flex; align-items: center; gap: 5px; color: var(--green); font-size: var(--font-xs); }
.live-indicator::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: currentColor; }
.history-count { color: var(--muted); font-size: var(--font-xs); }

@media (min-width: 1101px) {
  .app[data-view="alarms"] .main-scroll {
    display: flex;
    flex-direction: column;
    min-height: 0;
    overflow-y: hidden;
  }
  .app[data-view="alarms"] .content-shell {
    flex: 1 1 auto;
    min-height: 0;
    overflow: hidden;
  }
  .app[data-view="alarms"] .alarms-page {
    grid-template-rows: auto auto auto minmax(0, 1fr);
    height: 100%;
    min-height: 0;
    overflow: hidden;
  }
  .app[data-view="alarms"] .alarm-table-card.history {
    display: grid;
    grid-template-rows: auto minmax(0, 1fr);
    min-height: 0;
    overflow: hidden;
  }
  .app[data-view="alarms"] .alarm-table-card.history .alarm-table-scroll {
    min-height: 0;
    overflow-x: auto;
    overflow-y: auto;
    overscroll-behavior: contain;
    scrollbar-gutter: stable;
  }
  .app[data-view="alarms"] .alarm-table-card.history thead th {
    position: sticky;
    top: 0;
    z-index: 2;
  }
}

/* Reports */
.reports-control-grid { display: grid; grid-template-columns: minmax(0, 1.7fr) minmax(260px, .7fr); gap: var(--panel-gap); min-width: 0; }
.report-filter-fields { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.report-filter-fields input, .report-filter-fields select { width: 100%; }
.export-target-list { display: grid; gap: 0; }
.export-target-list p { display: flex; justify-content: space-between; gap: 10px; margin: 0; padding: 9px 0; border-bottom: 1px solid var(--line); }
.export-target-list span { color: var(--muted); }
.recent-reports-scroll table { min-width: 900px; }
.report-format { display: inline-block; min-width: 42px; padding: 3px 7px; border: 1px solid var(--line); border-radius: 4px; text-align: center; }

/* Dialogs */
.user-modal-overlay, .custom-report-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  padding: max(16px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right)) max(16px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));
  overflow: auto;
  background: rgba(1, 10, 18, .78);
  backdrop-filter: blur(3px);
  place-items: center;
}
.user-modal, .custom-report-modal {
  width: min(560px, calc(100vw - 32px));
  max-height: calc(100dvh - 32px);
  overflow-y: auto;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background: #0b2335;
  box-shadow: 0 30px 80px rgba(0,0,0,.52);
}
.custom-report-modal { width: min(480px, calc(100vw - 32px)); }
.user-modal-header, .custom-report-modal-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; padding: 18px; border-bottom: 1px solid var(--line); }
.user-modal-header h3, .custom-report-modal-header h3 { margin: 0; }
.user-modal-header p { margin: 4px 0 0; color: var(--muted); }
.user-modal-close, .custom-report-close { flex: 0 0 auto; width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 7px; background: transparent; cursor: pointer; font-size: 1.5rem; }
.user-modal form, .custom-report-modal form { padding: 18px; }
.user-modal-fields, .custom-report-fields { display: grid; gap: 13px; }
.user-modal-fields label { display: grid; gap: 6px; }
.user-modal-fields input, .user-modal-fields select, .custom-report-fields input { width: 100%; }
.user-modal-error, .custom-report-error { min-height: 22px; color: #ff8591; }
.user-modal-actions, .custom-report-actions { display: flex; justify-content: flex-end; gap: 10px; }
.user-modal-cancel, .custom-report-cancel { min-height: 44px; padding: 0 16px; border: 1px solid var(--line-strong); border-radius: 6px; color: #d4e2ed; background: transparent; cursor: pointer; }
.user-remove-message { color: #dce8f1; }

/* Dormant dashboard components stay coherent if enabled later */
.gauges { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--panel-gap); }
.phase-row { display: flex; gap: 10px; }
.gauge, .arc { position: relative; display: grid; flex: 1; min-width: 0; aspect-ratio: 2 / 1; overflow: hidden; place-items: end center; }
.gauge::before, .arc::before { content: ""; position: absolute; inset: 0; border: 14px solid currentColor; border-bottom: 0; border-radius: 999px 999px 0 0; }
.gauge.red { color: var(--red); } .gauge.amber { color: var(--yellow); } .gauge.blueg { color: var(--blue); }
.arc.green { color: var(--green); }
.gauge span, .arc span { z-index: 1; color: #fff; }
.source-card p { display: flex; align-items: center; gap: 7px; margin: 6px 0; }
.net-symbol { display: grid; width: 72px; height: 72px; margin: 18px auto; border: 1px solid var(--line); border-radius: 50%; color: var(--red); place-items: center; font-size: 2rem; }
.status-panel ul { margin: 14px 0 0; padding: 0; list-style: none; }
.status-panel li { display: flex; justify-content: space-between; gap: 10px; padding: 9px 0; border-bottom: 1px solid var(--line); }

/* Component-level responsive behavior */
@container (max-width: 520px) {
  .system-definition-list,
  .system-definition-list > div { grid-template-columns: 1fr; }
  .system-definition-list dd { text-align: left; }
  .health-value-list > div { grid-template-columns: 1fr; }
  .health-value-list strong { text-align: left; }
}

@container (max-width: 430px) {
  .event-list p { grid-template-columns: 1fr; }
  .event-list p span { justify-self: start; }
  .supply-mix-content { grid-template-columns: 1fr; }
  .donut { justify-self: center; }
}

/* Laptop: preserve the original compact desktop density without affecting tablet or large desktop. */
@media (min-width: 1101px) and (max-width: 1599px) {
  :root {
    --topbar-height: 56px;
    --page-padding: 10px;
    --page-gap: 8px;
    --panel-padding: 12px;
    --chart-height: clamp(200px, 30vh, 320px);
    --control-height: 34px;
    --font-xs: 10px;
    --font-sm: 12px;
    --font-md: 13px;
    --font-lg: 16px;
    --font-xl: 20px;
  }

  body { font-size: 13px; }

  .brand {
    min-height: 96px;
    padding: 8px 14px;
  }
  .brand-logo {
    width: min(100%, 190px);
    max-height: 86px;
  }
  .nav { padding: 5px 12px; }
  .nav-item {
    grid-template-columns: 28px minmax(0, 1fr) auto;
    min-height: 36px;
    margin-bottom: 4px;
    padding: 0 9px;
    font-size: 13px;
  }
  .nav-item > span { width: 22px; height: 22px; }
  .nav-item svg { width: 20px; height: 20px; }
  .meter-total { margin: 6px 12px; padding: 10px; }
  .meter-total > span { margin-bottom: 6px; }
  .side-summary-status p { padding: 6px; }
  .side-summary-status strong { font-size: 1.15rem; }
  .signature { padding-inline: 12px; }

  .topbar { gap: 10px; }
  .page-title { font-size: 18px; }
  .icon-button { width: 34px; height: 34px; }
  .topbar-tools { gap: 8px; font-size: 12px; }
  .status-dot { width: 10px; height: 10px; }
  .topbar-user-avatar,
  .user-avatar { width: 30px; height: 30px; }
  .topbar-user-menu-button { min-height: 34px; }
  .topbar-user-role { padding: 3px 7px; }
  .logout-button { min-height: 34px; padding-inline: 10px; }

  .panel-header { gap: 10px; margin-bottom: 8px; }
  .panel h3 { font-size: 12px; }
  .primary-btn, .secondary-btn, .primary-button,
  .meter-back-btn, .meter-test-connection, .trend-reset,
  .alarm-ack, .report-download, .report-regenerate, .report-clear,
  .edit-user, .reset-user-password, .remove-user, .test-device {
    min-height: 34px;
    padding-inline: 10px;
    font-size: 12px;
  }

  .kpi-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 7px;
    margin-bottom: 8px;
  }
  .kpi {
    grid-template-columns: 30px minmax(0, 1fr);
    gap: 8px;
    min-height: 88px;
    padding: 10px;
  }
  .kpi-icon { font-size: 18px; }
  .kpi strong { margin: 5px 0 3px; font-size: 17px; }
  .kpi p { font-size: 10px; }

  .chart { min-height: 190px; }
  .legend { gap: 7px 12px; font-size: 10px; }
  table { font-size: 11px; }
  th, td { padding: 6px 4px; }
  th { font-size: 9px; }

  .date-range-control {
    min-height: 38px;
    gap: 10px;
    padding: 3px 5px;
  }
  .date-range-calendar-icon { width: 28px; height: 28px; }
  .date-range-calendar-icon::before { margin-top: 6px; }
  .date-range-field {
    min-height: 30px;
    height: 30px;
    padding-inline: 8px;
  }
  .date-range-field input {
    min-height: 28px;
    height: 28px;
    font-size: 12px;
  }
  .date-range-apply {
    min-width: 72px;
    min-height: 30px;
    height: 30px;
  }

  .app[data-view="dashboard"] #kpiGrid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
  .app[data-view="dashboard"] .dash-chart { min-height: min(64vh, 620px); }
  .app[data-view="dashboard"] .dash-chart .chart {
    height: clamp(300px, calc(100dvh - 330px), 470px);
    min-height: clamp(300px, calc(100dvh - 330px), 470px);
  }
  .app[data-view="dashboard"] .number-row { gap: 8px; margin-top: 14px; }
  .app[data-view="dashboard"] .number-row strong { font-size: 17px; }
  .app[data-view="dashboard"] .event-list { margin-top: 6px; }
  .app[data-view="dashboard"] .event-list p {
    grid-template-columns: minmax(58px, auto) minmax(0, 1fr);
    gap: 6px;
    padding-block: 5px;
    font-size: 10px;
    line-height: 1.25;
  }
  .app[data-view="dashboard"] .event-list p span {
    min-width: 58px;
    padding: 1px 6px;
    font-size: 9px;
  }

  .app[data-view="meters"] #kpiGrid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
  .app[data-view="meters"] .sld-panel { padding: 10px; }
  .app[data-view="meters"] .sld-header { margin-bottom: 6px; }
  .app[data-view="meters"] .sld-header p { margin-top: 2px; font-size: 11px; }
  .app[data-view="meters"] .sld-legend { gap: 6px 12px; font-size: 11px; }
  .app[data-view="meters"] .sld-canvas { padding: 12px 16px; }
  .app[data-view="meters"] .sld-section-label {
    margin-bottom: 6px;
    font-size: 10px;
  }
  .app[data-view="meters"] .sld-source-row {
    gap: 12px;
    width: min(100%, 1000px);
  }
  .app[data-view="meters"] .sld-source-row .sld-node {
    min-height: 84px;
    padding: 9px 10px;
  }
  .app[data-view="meters"] .sld-source-row .sld-node-icon {
    width: 40px;
    height: 40px;
  }
  .app[data-view="meters"] .sld-sources .sld-node::after { height: 18px; }
  .app[data-view="meters"] .sld-main-link { height: 18px; }
  .app[data-view="meters"] .sld-busbar { min-height: 28px; }
  .app[data-view="meters"] .sld-machine-grid {
    grid-template-columns: repeat(9, minmax(0, 1fr));
    gap: 12px 8px;
  }
  .app[data-view="meters"] .sld-machine-grid .sld-node {
    min-height: 96px;
    gap: 2px 6px;
    padding: 7px 5px;
  }
  .app[data-view="meters"] .sld-machine-grid .sld-node::before { height: 14px; }
  .app[data-view="meters"] .sld-machine-grid .sld-node-icon {
    width: 30px;
    height: 30px;
  }
  .app[data-view="meters"] .sld-node-name,
  .app[data-view="meters"] .sld-node > strong { font-size: 11px; }
  .app[data-view="meters"] .sld-node-id,
  .app[data-view="meters"] .sld-node > small { font-size: 9px; }
  .app[data-view="meters"] .sld-reading { font-size: 10px; }

  .app[data-view="realtime"] #kpiGrid .kpi {
    min-height: 66px;
    height: 66px;
    padding: 8px 12px 6px;
  }
  .realtime-ops-grid .trend-panel .chart {
    height: clamp(190px, 26vh, 250px);
    min-height: 190px;
  }
  .realtime-ops-grid .scada-flow-svg {
    width: min(100%, 400px);
    min-height: 0;
    margin-inline: auto;
  }
  .realtime-ops-grid .compact-table-wrap th,
  .realtime-ops-grid .compact-table-wrap td { padding-block: 3px; }
  .realtime-ops-grid .health-value-list > div { min-height: 44px; padding-block: 6px; }
}

@media (min-width: 1451px) and (max-width: 1599px) {
  .kpi-grid,
  .system-kpi-grid { grid-template-columns: repeat(6, minmax(0, 1fr)); }
}

@media (min-width: 1101px) and (max-width: 1599px) and (max-height: 800px) {
  .app[data-view="realtime"] #kpiGrid .kpi {
    min-height: 60px;
    height: 60px;
    align-items: center;
  }
  .app[data-view="realtime"] #kpiGrid .kpi p { display: none; }
  .app[data-view="realtime"] .main-scroll { padding-bottom: 8px; }
  .app[data-view="realtime"] .realtime-ops-grid {
    grid-template-rows: 260px 96px 177px;
    gap: 8px;
  }
  .app[data-view="realtime"] .realtime-ops-grid > .panel { padding: 7px; }
  .app[data-view="realtime"] .panel-header { margin-bottom: 4px; }
  .app[data-view="realtime"] .panel-link { min-height: 28px; padding-inline: 8px; font-size: 11px; }
  .app[data-view="realtime"] .realtime-ops-grid .scada-flow-svg { width: min(100%, 380px); }
  .app[data-view="realtime"] .realtime-ops-grid .trend-panel .chart {
    height: 183px;
    min-height: 183px;
  }
  .app[data-view="realtime"] .trend-panel .legend { margin-top: 3px; }
  .app[data-view="realtime"] .realtime-ops-grid .compact-table-wrap th,
  .app[data-view="realtime"] .realtime-ops-grid .compact-table-wrap td { padding-block: 1px; }
  .app[data-view="realtime"] .realtime-health .health-value-list > div {
    grid-template-columns: minmax(0, 1fr) auto;
  }
  .app[data-view="realtime"] .realtime-health .health-value-list strong { text-align: right; }
  .app[data-view="realtime"] .realtime-machines .machine-state {
    min-height: 19px;
    padding: 1px 6px;
    font-size: 9px;
  }
  .app[data-view="realtime"] .realtime-ops-grid .health-value-list > div {
    min-height: 38px;
    padding-block: 4px;
  }
}

@media (min-width: 1200px) and (max-width: 1599px) {
  .app[data-view="realtime"] .realtime-ops-grid {
    grid-template-columns: repeat(20, minmax(0, 1fr));
    grid-template-areas: none;
  }
  .app[data-view="realtime"] .flow-panel { grid-column: 1 / 8; grid-row: 1; }
  .app[data-view="realtime"] .trend-panel { grid-column: 8 / 21; grid-row: 1; }
  .app[data-view="realtime"] .realtime-alarms { grid-column: 1 / 21; grid-row: 2; }
  .app[data-view="realtime"] .realtime-machines { grid-column: 1 / 13; grid-row: 3; }
  .app[data-view="realtime"] .realtime-health { grid-column: 13 / 21; grid-row: 3; }
}

/* Large desktop */
@media (min-width: 1600px) {
  :root {
    --page-padding: clamp(16px, 1.2vw, 26px);
    --page-gap: clamp(12px, .9vw, 20px);
    --panel-padding: clamp(14px, 1vw, 22px);
    --chart-height: clamp(300px, 37vh, 480px);
  }
  .kpi-grid { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .system-kpi-grid { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .dashboard-overview-grid { grid-template-columns: minmax(0, 3.4fr) minmax(330px, 1fr); }
  .dash-chart { min-height: min(70vh, 760px); }
  .realtime-ops-grid { grid-template-columns: minmax(430px, 1fr) minmax(0, 1.8fr); }
  .realtime-ops-grid .trend-panel .chart { height: 236px; min-height: 220px; }
  .realtime-ops-grid .scada-flow-svg { width: min(100%, 430px); min-height: 0; margin-inline: auto; }
  .realtime-ops-grid .compact-table-wrap th,
  .realtime-ops-grid .compact-table-wrap td { padding-block: 3px; }
  .realtime-ops-grid .health-value-list > div { min-height: 44px; padding-block: 6px; }
  .sld-machine-grid { grid-template-columns: repeat(9, minmax(110px, 1fr)); gap: 18px 14px; }
  .alarm-summary-card { min-height: 126px; }
}

/* Tablet and small laptop: drawer shell */
@media (max-width: 1100px) {
  :root {
    --topbar-height: 64px;
    --page-padding: clamp(10px, 2vw, 18px);
    --chart-height: clamp(250px, 38vh, 390px);
  }
  .app { grid-template-columns: minmax(0, 1fr); }
  .sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    z-index: 30;
    width: min(86vw, 310px);
    transform: translateX(-102%);
    transition: transform .22s ease;
    box-shadow: 20px 0 60px rgba(0,0,0,.4);
  }
  .app.menu-open .sidebar { transform: translateX(0); }
  .sidebar .sidebar-close { display: inline-grid; }
  .brand { min-height: 116px; padding-right: 52px; }
  .topbar-menu-button { visibility: visible; }
  .main { width: 100%; }
  .main-scroll { padding-bottom: max(var(--page-padding), env(safe-area-inset-bottom)); }
  .topbar-clock,
  .topbar-user-menu-button .topbar-user-name,
  .topbar-user-menu-button .topbar-user-role { display: none; }
  .panel-link, .primary-btn, .secondary-btn, .primary-button,
  .meter-back-btn, .meter-test-connection, .trend-reset, .alarm-ack,
  .report-download, .report-regenerate, .report-clear, .edit-user,
  .reset-user-password, .remove-user, .test-device, .alarm-filter,
  .system-kpi-action button, .logout-button { min-height: 44px; }
  button { min-width: 44px; }
  .topbar-user-menu-button { min-width: 44px; }
  .kpi-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }

  .dashboard-overview-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-template-areas:
      "chart chart"
      "summary alarms";
  }
  .dash-chart { min-height: 0; }
  .dash-chart .chart { min-height: var(--chart-height); height: var(--chart-height); }

  .realtime-ops-grid {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas: "flow" "trend" "alarms" "machines" "health";
  }
  .scada-flow-svg { width: min(100%, 760px); margin-inline: auto; }
  .trend-panel .chart { height: var(--chart-height); }

  .sld-source-row { grid-template-columns: repeat(2, minmax(0, 1fr)); width: min(100%, 700px); }
  .sld-machine-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px 12px; }
  .meter-detail-toolbar { grid-template-columns: auto minmax(0, 1fr); }
  .meter-detail-toolbar .date-range-filter-host { grid-column: 1 / -1; }
  .meter-detail-header { grid-template-columns: 1fr; }
  .meter-detail-charts { grid-template-columns: 1fr; }
  .meter-detail-charts > :first-child { grid-column: auto; }

  .analysis-grid { grid-template-columns: minmax(0, 1fr); }
  .analysis-date-range, .heatmap-panel, .analysis-table { grid-column: 1; }
  .analysis-overview .chart { height: var(--chart-height); }

  .settings-form-grid, .threshold-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .configuration-actions { grid-template-columns: 1fr; }
  .backup-settings-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .backup-option { grid-column: 1 / -1; }
  .system-kpi-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .system-detail-grid { grid-template-columns: 1fr; }
  .system-components { grid-column: auto; }
  .audit-filters { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .audit-filter-actions { grid-column: 1 / -1; }
  .alarm-summary { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .reports-control-grid { grid-template-columns: 1fr; }
  .report-filter-fields { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* Phone */
@media (max-width: 760px) {
  :root {
    --topbar-height: 60px;
    --page-padding: 10px;
    --page-gap: 10px;
    --panel-padding: 12px;
    --chart-height: clamp(230px, 38vh, 330px);
    --radius: 7px;
  }
  body { font-size: .9rem; }
  .login-screen { grid-template-columns: 1fr; align-content: center; gap: 26px; padding: max(18px, env(safe-area-inset-top)) max(14px, env(safe-area-inset-right)) max(18px, env(safe-area-inset-bottom)) max(14px, env(safe-area-inset-left)); }
  .login-brand img { width: min(70vw, 300px); }
  .login-card { max-width: 560px; margin-inline: auto; }
  .login-card-body { padding: 26px 20px; }
  .login-card h1 { font-size: clamp(1.65rem, 7vw, 2.1rem); }
  .login-card h1 + p { margin-bottom: 22px; font-size: .88rem; }

  .topbar { gap: 6px; padding-left: max(8px, env(safe-area-inset-left)); padding-right: max(8px, env(safe-area-inset-right)); }
  .page-title { font-size: clamp(1rem, 4vw, 1.2rem); }
  .topbar-tools { gap: 6px; }
  .topbar-api-status { gap: 5px; }
  .api-status { font-size: 0; }
  .api-status strong { font-size: .7rem; }
  .topbar-user-avatar { width: 32px; height: 32px; }
  .topbar-logout-button { width: 44px; padding: 0; }
  .main-scroll { scrollbar-gutter: auto; }
  .chart.trend-zoom-active { touch-action: pan-y; }

  .kpi-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .kpi { min-height: 100px; padding: 11px; }
  .kpi p { display: none; }
  .kpi small { white-space: normal; }
  .kpi strong { white-space: normal; }
  .panel-header { flex-wrap: wrap; }

  .date-range-control { grid-template-columns: 1fr; }
  .date-range-intro { min-height: 36px; }
  .date-range-fields { grid-template-columns: 1fr; }
  .date-range-divider { display: none; }
  .date-range-field { min-height: 44px; }
  .date-range-apply { width: 100%; min-height: 44px; }

  .dashboard-overview-grid {
    grid-template-columns: 1fr;
    grid-template-areas: "chart" "summary" "alarms";
  }
  .dash-chart .chart { min-height: var(--chart-height); }
  .number-row { margin-top: 14px; }

  .realtime-trend-head { align-items: stretch; }
  .realtime-trend-head > div { justify-content: space-between; }
  .scada-flow-svg { min-height: 0; }
  .compact-table-wrap table { min-width: 0; }

  .mobile-card-table, .mobile-card-table tbody, .mobile-card-table tr, .mobile-card-table td { display: block; width: 100%; min-width: 0; }
  .mobile-card-table thead { display: none; }
  .mobile-card-table tbody { display: grid; gap: 10px; }
  .mobile-card-table tr {
    padding: 9px 11px;
    border: 1px solid var(--line);
    border-radius: 7px;
    background: rgba(7,28,43,.72);
  }
  .mobile-card-table td {
    display: grid;
    grid-template-columns: minmax(92px, .8fr) minmax(0, 1.2fr);
    gap: 10px;
    padding: 7px 0;
    border-bottom: 1px solid var(--line);
    text-align: right;
  }
  .mobile-card-table td:last-child { border-bottom: 0; }
  .mobile-card-table td::before { content: attr(data-label); color: #8daabd; font-size: var(--font-xs); font-weight: 700; text-align: left; text-transform: uppercase; }
  .mobile-card-table td[colspan] { display: block; text-align: center; }
  .mobile-card-table td[colspan]::before { content: none; }
  .mobile-card-table .user-cell, .mobile-card-table .user-actions, .mobile-card-table .report-actions { justify-content: flex-end; text-align: left; }
  .alarm-table-scroll .mobile-card-table, .recent-reports-scroll .mobile-card-table, .users-table-panel .mobile-card-table { min-width: 0; }

  .sld-header { align-items: flex-start; }
  .sld-canvas { padding: 16px 10px; }
  .sld-source-row { grid-template-columns: 1fr; max-width: 430px; }
  .sld-main-link { margin-inline: 5%; }
  .sld-machine-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px 8px; }
  .sld-node { min-height: 106px; padding: 11px; }
  .sld-machine-grid .sld-node { min-height: 116px; }

  .meter-detail-toolbar { grid-template-columns: 1fr; }
  .meter-detail-toolbar .date-range-filter-host { grid-column: auto; }
  .meter-back-btn, .meter-test-connection { width: 100%; justify-content: center; min-height: 44px; }
  .meter-connection-actions { display: grid; grid-template-columns: 1fr; }
  .meter-detail-meta { grid-template-columns: 1fr; }
  .meter-parameters-table { min-width: 680px; }

  .supply-mix-content { grid-template-columns: 1fr; }
  .donut { justify-self: center; }
  .heatmap-grid { grid-template-columns: minmax(58px, 72px) repeat(24, minmax(0, 1fr)); gap: 2px; }
  .heatmap-cell { min-height: 10px; border-radius: 2px; }
  .heatmap-hour:nth-of-type(odd) { color: transparent; }
  .heatmap-touch-controls { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; margin-top: 10px; }
  .heatmap-touch-controls button { min-width: 0; min-height: 44px; border: 1px solid var(--line-strong); border-radius: 6px; color: #c8dded; background: #0a2132; cursor: pointer; }

  .settings-section-header, .system-diagnostics-toolbar, .system-diagnostics-actions { align-items: stretch; flex-direction: column; }
  .settings-state { align-self: flex-start; }
  .settings-form-grid, .threshold-grid, .backup-settings-grid { grid-template-columns: 1fr; }
  .backup-option { grid-column: auto; }
  .settings-footer { align-items: stretch; flex-direction: column; }
  .settings-footer button { width: 100%; min-height: 44px; }
  .backup-metrics { grid-template-columns: 1fr; }

  .page-action .add-user-button { width: 100%; }
  .users-table-panel { min-height: 0; }
  .user-filters { grid-template-columns: 1fr; }
  .table-footer { flex-direction: column; }
  .system-kpi-grid { grid-template-columns: 1fr; }
  .system-health-groups { grid-template-columns: 1fr; }
  .audit-filters { grid-template-columns: 1fr; }
  .audit-filter-actions { grid-column: auto; display: grid; grid-template-columns: repeat(2, 1fr); }
  .audit-filter-actions button { min-height: 44px; }
  .alarm-summary { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .alarm-summary-card { min-height: 100px; }
  .report-filter-fields { grid-template-columns: 1fr; }
  .report-filters .panel-header { align-items: stretch; }
  .report-generate-selected { width: 100%; }

  .user-modal-actions, .custom-report-actions { flex-direction: column-reverse; }
  .user-modal-actions button, .custom-report-actions button { width: 100%; min-height: 44px; }
}

/* Small phone */
@media (max-width: 480px) {
  :root { --page-padding: 8px; --page-gap: 8px; --panel-padding: 10px; }
  .sidebar { width: min(92vw, 300px); }
  .topbar-user-popover { right: 0; }
  .page-title { font-size: .98rem; }
  .kpi-grid { grid-template-columns: 1fr; }
  .kpi { min-height: 88px; grid-template-columns: 34px minmax(0, 1fr); }
  .kpi p { display: block; }
  .number-row { grid-template-columns: 1fr; }
  .event-list p { grid-template-columns: 1fr; }
  .event-list p span { justify-self: start; }
  .sld-machine-grid { grid-template-columns: 1fr; max-width: 360px; margin-inline: auto; }
  .sld-machine-grid .sld-node { grid-template-columns: auto minmax(0, 1fr) auto; grid-template-areas: "icon title status" "icon id status" "icon reading reading"; justify-items: start; text-align: left; }
  .heatmap-grid { grid-template-columns: 54px repeat(24, minmax(0, 1fr)); gap: 1px; }
  .heatmap-cell { min-height: 9px; border-width: 0; }
  .heatmap-day, .heatmap-hour { font-size: .55rem; }
  .alarm-summary { grid-template-columns: 1fr; }
  .mobile-card-table td { grid-template-columns: 1fr; text-align: left; }
  .mobile-card-table .user-actions, .mobile-card-table .report-actions { justify-content: flex-start; }
  .user-modal-overlay, .custom-report-overlay { padding: max(8px, env(safe-area-inset-top)) max(8px, env(safe-area-inset-right)) max(8px, env(safe-area-inset-bottom)) max(8px, env(safe-area-inset-left)); }
  .user-modal, .custom-report-modal { width: calc(100vw - 16px); max-height: calc(100dvh - 16px); }
}

@media (max-height: 650px) and (max-width: 1100px) {
  .brand { min-height: 90px; }
  .brand-logo { max-height: 76px; }
  .meter-total { margin-block: 5px; padding: 9px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto; transition-duration: .01ms; animation-duration: .01ms; animation-iteration-count: 1; }
}