:root {
  color-scheme: light;
  --tm-bg: #edf0f2;
  --tm-surface: #ffffff;
  --tm-line: #d9dee3;
  --tm-line-strong: #b8c0c8;
  --tm-text: #1a2026;
  --tm-text-2: #5b6570;
  --tm-text-3: #8a939c;
  --tm-accent: #1d5b87;
  --tm-accent-hover: #174a6f;
  --tm-ok: #2e9c4a;
  --tm-ok-text: #1f7a38;
  --tm-ok-tint: #e7f4eb;
  --tm-warn: #e39a0b;
  --tm-warn-text: #8a5f00;
  --tm-warn-tint: #fcf3de;
  --tm-alarm: #d6362b;
  --tm-alarm-text: #a8271e;
  --tm-alarm-tint: #fbe7e5;
  --tm-nocomm: #67788a;
  --tm-nocomm-text: #4e5d6e;
  --tm-nocomm-tint: #ecf0f4;
  --tm-nodata: #98a1a9;
  --tm-sensor-fault: #a23b8f;
  --tm-sensor-fault-text: #7e2c6f;
  --tm-sensor-fault-tint: #f6e9f3;
  --tm-radius-s: 3px;
  --tm-radius-m: 6px;
  --tm-shadow-card: 0 1px 2px rgba(16, 24, 32, 0.06);
  --tm-status-bar-w: 3px;
  --tm-status-dot: 8px;
  --tm-sp-1: 4px;
  --tm-sp-2: 8px;
  --tm-sp-3: 12px;
  --tm-sp-4: 16px;
  --tm-sp-6: 24px;
  --tm-sp-8: 32px;
  --tm-sp-12: 48px;
  --tm-font-ui: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, Arial, sans-serif;
  --tm-font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Consolas, monospace;
  --tm-fs-label: 11px;
  --tm-fs-caption: 12px;
  --tm-fs-body-s: 13px;
  --tm-fs-body: 14px;
  --tm-fs-h2: 16px;
  --tm-fs-h1: 22px;
  --tm-fs-value: 26px;
}

[data-theme="dark"] {
  color-scheme: dark;
  --tm-bg: #171b1f;
  --tm-surface: #1f252b;
  --tm-line: #2b333b;
  --tm-line-strong: #3b4650;
  --tm-text: #e8ecef;
  --tm-text-2: #9aa6b0;
  --tm-text-3: #6e7a84;
  --tm-accent: #5ca0cc;
  --tm-accent-hover: #7bb4d9;
  --tm-ok: #46b564;
  --tm-ok-text: #7cd38f;
  --tm-ok-tint: rgb(70 181 100 / 0.14);
  --tm-warn: #e8ac3b;
  --tm-warn-text: #f2c56a;
  --tm-warn-tint: rgb(232 172 59 / 0.14);
  --tm-alarm: #e5564a;
  --tm-alarm-text: #ff8a80;
  --tm-alarm-tint: rgb(229 86 74 / 0.14);
  --tm-nocomm: #8496a9;
  --tm-nocomm-text: #b3c0cc;
  --tm-nocomm-tint: rgb(132 150 169 / 0.14);
  --tm-nodata: #7b848c;
  --tm-sensor-fault: #bc5ba9;
  --tm-sensor-fault-text: #d584c6;
  --tm-sensor-fault-tint: rgb(188 91 169 / 0.14);
  --tm-shadow-card: none;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--tm-bg);
  color: var(--tm-text);
  font-family: var(--tm-font-ui);
  font-size: var(--tm-fs-body);
  line-height: 1.45;
  font-variant-numeric: tabular-nums;
}

button,
input,
select {
  font: inherit;
}

button {
  min-height: 32px;
}

button,
select {
  cursor: pointer;
}

.hidden {
  display: none !important;
}

.login {
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: var(--tm-sp-6);
}

.login-panel {
  width: min(780px, 100%);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.78fr);
  gap: var(--tm-sp-8);
  padding: var(--tm-sp-8);
  background: var(--tm-surface);
  border: 1px solid var(--tm-line);
  border-radius: var(--tm-radius-m);
  box-shadow: var(--tm-shadow-card);
}

.login-brand {
  display: flex;
  flex-direction: column;
  gap: var(--tm-sp-4);
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.brand-lockup-compact {
  padding-right: var(--tm-sp-4);
  border-right: 1px solid var(--tm-line);
}

.brand-mark {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  position: relative;
  flex: 0 0 auto;
  border-radius: var(--tm-radius-s);
  background: var(--tm-text);
  color: var(--tm-surface);
  font-size: 19px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.02em;
}

.brand-mark::after {
  content: "";
  position: absolute;
  top: 7px;
  right: 7px;
  width: 7px;
  height: 1px;
  background: currentColor;
  box-shadow: 0 5px 0 currentColor, 0 10px 0 currentColor;
  opacity: 0.8;
}

.brand-name {
  display: grid;
  gap: 1px;
  color: var(--tm-text);
  line-height: 1;
}

.brand-name strong {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.brand-name span {
  color: var(--tm-text-2);
  font-size: 10px;
  letter-spacing: 0.12em;
}

.login h1,
.topbar h1 {
  margin: 0;
  color: var(--tm-text);
  font-size: var(--tm-fs-h1);
  font-weight: 600;
  line-height: 1.25;
}

.login-copy,
.login-note,
.muted,
.label {
  color: var(--tm-text-2);
}

.login-copy {
  max-width: 52ch;
  margin: 0;
}

.login-note {
  max-width: 46ch;
  margin: 0;
  font-size: var(--tm-fs-body-s);
}

.login-form {
  display: grid;
  align-content: start;
  gap: var(--tm-sp-3);
}

.login-form label {
  display: grid;
  gap: 6px;
  color: var(--tm-text-2);
  font-size: var(--tm-fs-body-s);
  font-weight: 500;
}

.login-form input,
select {
  width: 100%;
  min-height: 32px;
  border: 1px solid var(--tm-line-strong);
  border-radius: var(--tm-radius-s);
  padding: 6px 10px;
  background: var(--tm-surface);
  color: var(--tm-text);
}

.login-form input:focus,
select:focus,
button:focus-visible {
  outline: 2px solid rgb(29 91 135 / 0.25);
  outline-offset: 2px;
}

.login-form input:focus,
select:focus {
  border-color: var(--tm-accent);
}

.login-form button,
.ghost-button {
  border: 1px solid var(--tm-accent);
  border-radius: var(--tm-radius-s);
  padding: 0 12px;
  background: var(--tm-accent);
  color: #f7fbfd;
  font-weight: 600;
}

.login-form button:hover {
  background: var(--tm-accent-hover);
}

.login-form button:active,
.ghost-button:active {
  transform: translateY(1px);
}

.ghost-button {
  background: var(--tm-surface);
  color: var(--tm-accent);
}

.ghost-button:hover {
  border-color: var(--tm-accent-hover);
  color: var(--tm-accent-hover);
}

.form-error {
  min-height: 18px;
  margin: 0;
  color: var(--tm-alarm-text);
  font-size: var(--tm-fs-caption);
}

.shell {
  width: min(1440px, 100%);
  margin: 0 auto;
  padding: 0 var(--tm-sp-4) var(--tm-sp-8);
}

.topbar {
  min-height: 56px;
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--tm-sp-4);
  padding: var(--tm-sp-3) 0;
  border-bottom: 1px solid var(--tm-line);
  background: var(--tm-bg);
}

.top-left {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: var(--tm-sp-4);
}

.object-title {
  min-width: 0;
}

.top-actions {
  display: flex;
  align-items: center;
  gap: var(--tm-sp-2);
}

.muted {
  margin: 0;
  font-size: var(--tm-fs-body-s);
}

.summary-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: var(--tm-sp-4) 0 var(--tm-sp-6);
  border: 1px solid var(--tm-line);
  border-radius: var(--tm-radius-m);
  overflow: hidden;
  background: var(--tm-line);
  box-shadow: var(--tm-shadow-card);
}

.summary-strip > div {
  background: var(--tm-surface);
  padding: var(--tm-sp-4);
}

.summary-strip strong {
  display: block;
  margin-top: var(--tm-sp-2);
  font-size: var(--tm-fs-h1);
  font-weight: 600;
  line-height: 1.2;
}

.label {
  display: block;
  font-size: var(--tm-fs-label);
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

section {
  scroll-margin-top: 72px;
  margin: 0 0 var(--tm-sp-6);
}

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--tm-sp-3);
  margin: 0 0 var(--tm-sp-3);
}

.section-head h2 {
  margin: 0;
  color: var(--tm-text);
  font-size: var(--tm-fs-h2);
  font-weight: 600;
  line-height: 1.25;
}

.controller-row,
.boiler-grid,
.metric-grid {
  display: grid;
  gap: var(--tm-sp-3);
}

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

.controller-chip,
.boiler-card,
.metric-card,
.trend-panel,
.alarm-list,
.sensor-list {
  background: var(--tm-surface);
  border: 1px solid var(--tm-line);
  box-shadow: var(--tm-shadow-card);
}

.controller-chip {
  min-height: 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--tm-sp-3);
  padding: var(--tm-sp-2) var(--tm-sp-3);
  border-radius: var(--tm-radius-s);
}

.controller-chip[data-state="offline"] {
  color: var(--tm-nocomm-text);
  background: var(--tm-nocomm-tint);
  border-color: var(--tm-nocomm);
}

.controller-chip strong {
  display: block;
  margin-bottom: 2px;
  font-size: var(--tm-fs-body-s);
  font-weight: 500;
}

.mono,
.alarm-code,
.controller-id {
  font-family: var(--tm-font-mono);
  font-size: var(--tm-fs-caption);
}

.dot {
  width: var(--tm-status-dot);
  height: var(--tm-status-dot);
  border-radius: 50%;
  background: var(--tm-nodata);
  flex: 0 0 auto;
}

.dot.normal {
  background: var(--tm-ok);
}

.dot.warning {
  background: var(--tm-warn);
}

.dot.alarm {
  background: var(--tm-alarm);
}

.dot.nocomm,
.dot.nodata,
.dot.stale {
  background: var(--tm-nocomm);
}

.dot.sensor-fault {
  background: var(--tm-sensor-fault);
}

.status-chip {
  min-height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: 1px solid transparent;
  border-radius: var(--tm-radius-s);
  padding: 2px 8px;
  font-size: var(--tm-fs-label);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
}

.status-chip::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.status-normal {
  color: var(--tm-ok-text);
  background: var(--tm-ok-tint);
  border-color: var(--tm-ok);
}

.status-warning {
  color: var(--tm-warn-text);
  background: var(--tm-warn-tint);
  border-color: var(--tm-warn);
}

.status-alarm {
  color: var(--tm-alarm-text);
  background: var(--tm-alarm-tint);
  border-color: var(--tm-alarm);
}

.status-nocomm,
.status-stale {
  color: var(--tm-nocomm-text);
  background: var(--tm-nocomm-tint);
  border-color: var(--tm-nocomm);
}

.status-nodata {
  color: var(--tm-nocomm-text);
  background: transparent;
  border-color: var(--tm-line);
}

.status-sensor-fault {
  color: var(--tm-sensor-fault-text);
  background: var(--tm-sensor-fault-tint);
  border-color: var(--tm-sensor-fault);
}

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

.boiler-card,
.metric-card,
.trend-panel,
.alarm-list,
.sensor-list {
  border-radius: var(--tm-radius-m);
}

.boiler-card {
  padding: var(--tm-sp-4);
}

.boiler-card[data-status="warning"] {
  border-color: var(--tm-warn);
}

.boiler-card[data-status="alarm"] {
  border-color: var(--tm-alarm);
}

.boiler-title {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: var(--tm-sp-3);
  margin-bottom: var(--tm-sp-4);
}

.boiler-title h3 {
  margin: 0;
  font-size: var(--tm-fs-h2);
  font-weight: 600;
}

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

.boiler-card .metric-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.metric-card {
  min-height: 112px;
  position: relative;
  padding: var(--tm-sp-4);
  border-left: var(--tm-status-bar-w) solid transparent;
}

.metric-card[data-state="warning"] {
  border-left-color: var(--tm-warn);
  background: var(--tm-warn-tint);
}

.metric-card[data-state="alarm"] {
  border-left-color: var(--tm-alarm);
  background: var(--tm-alarm-tint);
}

.metric-card[data-state="nocomm"],
.metric-card[data-state="stale"] {
  border-left-color: var(--tm-nocomm);
  background: var(--tm-nocomm-tint);
}

.metric-card[data-state="sensor-fault"] {
  border-left-color: var(--tm-sensor-fault);
  background: var(--tm-sensor-fault-tint);
}

.metric-card[data-state="nodata"] .metric-value strong {
  color: var(--tm-nodata);
}

.metric-top {
  min-height: 32px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--tm-sp-2);
  margin-bottom: var(--tm-sp-2);
}

.metric-name {
  margin: 0;
  color: var(--tm-text-3);
  font-size: var(--tm-fs-label);
  font-weight: 500;
  line-height: 1.3;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.metric-value {
  display: flex;
  align-items: baseline;
  gap: 6px;
  min-width: 0;
  white-space: nowrap;
}

.metric-value strong {
  color: var(--tm-text);
  font-size: var(--tm-fs-value);
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0;
}

.metric-value span {
  color: var(--tm-text-2);
  font-size: var(--tm-fs-body-s);
}

.metric-age {
  margin-top: var(--tm-sp-2);
  color: var(--tm-text-2);
  font-size: var(--tm-fs-caption);
}

.metric-age.stale {
  color: var(--tm-nocomm-text);
}

.two-column {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(360px, 0.75fr);
  gap: var(--tm-sp-4);
}

.alarm-list,
.sensor-list {
  overflow: hidden;
}

.alarm-row,
.sensor-row {
  display: grid;
  gap: var(--tm-sp-3);
  padding: var(--tm-sp-3);
  border-top: 1px solid var(--tm-line);
}

.alarm-row:first-child,
.sensor-row:first-child {
  border-top: 0;
}

.alarm-row {
  min-height: 40px;
  grid-template-columns: 96px minmax(0, 1fr) auto;
}

.alarm-row[data-state="active"] {
  background: var(--tm-alarm-tint);
}

.alarm-row button {
  min-height: 32px;
  border: 1px solid var(--tm-line-strong);
  border-radius: var(--tm-radius-s);
  background: var(--tm-surface);
  color: var(--tm-text);
  padding: 0 10px;
}

.alarm-row button:disabled {
  cursor: default;
  color: var(--tm-text-3);
}

.alarm-code {
  font-weight: 600;
}

.alarm-meta,
.sensor-meta {
  color: var(--tm-text-2);
  font-size: var(--tm-fs-caption);
}

.empty-state {
  padding: var(--tm-sp-4);
  color: var(--tm-ok-text);
  font-weight: 500;
}

.trend-panel {
  padding: var(--tm-sp-4);
}

canvas {
  display: block;
  width: 100%;
  height: 280px;
}

.sensor-row {
  min-height: 40px;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
}

.sensor-row strong {
  font-family: var(--tm-font-mono);
  font-size: var(--tm-fs-body-s);
  font-weight: 500;
}

.sensor-state {
  min-width: 76px;
}

.mobile-nav {
  display: none;
}

/* ============================================================
   Landing (Thermicon site). Селекторы мониторинга не трогать -
   они выше и в блоке "monitoring responsive" в конце файла.
   ============================================================ */

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

.site-body {
  min-height: 100dvh;
  --lp-heat: #a8622e;
  --lp-heat-dark: #7c461f;
  --lp-heat-bright: #c58245;
  --lp-panel: #171b1f;
  --lp-panel-2: #1f252b;
  --lp-panel-line: rgb(232 236 239 / 0.18);
  --lp-panel-text: #e8ecef;
  --lp-panel-muted: rgb(232 236 239 / 0.55);
  background: var(--tm-bg);
  overflow-x: clip;
}

/* --- header --- */

.site-header {
  width: min(1280px, 100%);
  min-height: 64px;
  display: flex;
  align-items: center;
  gap: var(--tm-sp-6);
  margin: 0 auto;
  padding: var(--tm-sp-3) var(--tm-sp-4);
  border-bottom: 1px solid var(--tm-line);
}

.site-brand {
  color: inherit;
  text-decoration: none;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--tm-sp-4);
}

.site-nav a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 0 4px;
  color: var(--tm-text-2);
  font-weight: 500;
  text-decoration: none;
  transition: color 0.12s ease;
}

.site-nav a:hover {
  color: var(--tm-accent);
}

.header-cta {
  margin-left: auto;
}

/* --- кнопки лендинга --- */

.primary-link,
.secondary-link {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--tm-radius-s);
  padding: 0 18px;
  white-space: nowrap;
  text-decoration: none;
  transition: background-color 0.12s ease, border-color 0.12s ease, color 0.12s ease,
    transform 0.08s ease;
}

.primary-link {
  border: 1px solid var(--tm-accent);
  background: var(--tm-accent);
  color: #f7fbfd;
  font-weight: 600;
}

.primary-link:hover {
  background: var(--tm-accent-hover);
  border-color: var(--tm-accent-hover);
}

.secondary-link {
  border: 1px solid var(--tm-line-strong);
  color: var(--tm-text-2);
  font-weight: 500;
}

.secondary-link:hover {
  border-color: var(--tm-accent);
  color: var(--tm-accent);
}

.primary-link:active,
.secondary-link:active {
  transform: scale(0.97);
}

.primary-link:focus-visible,
.secondary-link:focus-visible,
.site-nav a:focus-visible,
.site-footer a:focus-visible {
  outline: 2px solid rgb(29 91 135 / 0.35);
  outline-offset: 2px;
}

/* --- сетка секций --- */

.hero-section,
.site-section,
.site-footer {
  width: min(1280px, 100%);
  margin: 0 auto;
  padding: clamp(48px, 6vw, 88px) var(--tm-sp-4);
}

.site-section {
  border-top: 1px solid var(--tm-line);
}

.section-copy {
  max-width: 720px;
}

.section-copy p {
  max-width: 62ch;
  color: var(--tm-text-2);
  font-size: 16px;
  line-height: 1.55;
  text-wrap: pretty;
}

.site-section h2 {
  margin: 0 0 var(--tm-sp-4);
  color: var(--tm-text);
  font-size: clamp(26px, 3.2vw, 40px);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.01em;
  text-wrap: balance;
}

/* --- hero --- */

.hero-section {
  display: grid;
  grid-template-columns: minmax(320px, 0.9fr) minmax(520px, 1.1fr);
  align-items: center;
  gap: clamp(32px, 5vw, 72px);
}

.site-kicker {
  margin: 0 0 var(--tm-sp-3);
  color: var(--lp-heat-dark);
  font-size: var(--tm-fs-body-s);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.hero-copy h1 {
  margin: 0;
  color: var(--tm-text);
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 600;
  line-height: 1.02;
  letter-spacing: -0.01em;
  text-wrap: balance;
}

.hero-lead {
  max-width: 56ch;
  margin: var(--tm-sp-6) 0 0;
  color: var(--tm-text-2);
  font-size: 17px;
  line-height: 1.55;
  text-wrap: pretty;
}

.hero-actions,
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--tm-sp-3);
  margin-top: var(--tm-sp-8);
}

.hero-meta {
  margin: var(--tm-sp-6) 0 0;
  color: var(--tm-text-3);
  font-size: var(--tm-fs-body-s);
}

/* --- панель-схема контура --- */

.flow-panel {
  border: 1px solid var(--lp-panel);
  border-radius: var(--tm-radius-m);
  padding: var(--tm-sp-4);
  background: var(--lp-panel);
  color: var(--lp-panel-text);
  box-shadow: var(--tm-shadow-card);
}

.flow-label {
  display: block;
  color: var(--tm-text-3);
  font-size: var(--tm-fs-label);
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.flow-panel .flow-label {
  color: var(--lp-panel-muted);
}

.flow-plate {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--tm-sp-4);
  padding-bottom: var(--tm-sp-4);
  border-bottom: 1px solid var(--lp-panel-line);
}

.flow-plate strong {
  display: block;
  margin-top: 4px;
  font-size: 18px;
  font-weight: 600;
}

.flow-tag {
  border: 1px solid var(--lp-panel-line);
  border-radius: 2px;
  padding: 4px 8px;
  color: var(--lp-panel-muted);
  font-family: var(--tm-font-mono);
  font-size: var(--tm-fs-label);
  letter-spacing: 0.08em;
}

.flow-chart {
  display: grid;
  grid-template-columns: 1fr 28px 1.15fr 28px 1fr;
  align-items: stretch;
  row-gap: var(--tm-sp-2);
  padding: var(--tm-sp-4) 0;
}

.flow-node {
  min-height: 96px;
  display: grid;
  align-content: center;
  gap: 4px;
  padding: var(--tm-sp-3);
  border: 1px solid var(--lp-panel-line);
  border-radius: var(--tm-radius-s);
  background: var(--lp-panel-2);
}

.flow-node strong {
  color: var(--lp-panel-text);
  font-family: var(--tm-font-mono);
  font-size: var(--tm-fs-body-s);
  font-weight: 500;
}

.flow-node em {
  color: var(--lp-panel-muted);
  font-size: 11.5px;
  font-style: normal;
  line-height: 1.35;
}

.flow-node-main {
  border-color: var(--lp-heat-bright);
}

.flow-link {
  position: relative;
  height: 1px;
  margin: auto 0;
  background: rgb(232 236 239 / 0.4);
}

.flow-link::after {
  content: "";
  position: absolute;
  top: -3px;
  right: 0;
  border-top: 3.5px solid transparent;
  border-bottom: 3.5px solid transparent;
  border-left: 5px solid rgb(232 236 239 / 0.6);
}

.flow-branch {
  grid-column: 1 / -1;
  display: grid;
  justify-items: center;
}

.flow-link-down {
  width: 1px;
  height: 22px;
  margin: 0;
}

.flow-link-down::after {
  top: auto;
  right: auto;
  bottom: 0;
  left: -3px;
  border-top: 5px solid rgb(232 236 239 / 0.6);
  border-right: 3.5px solid transparent;
  border-bottom: 0;
  border-left: 3.5px solid transparent;
}

.flow-node-wide {
  width: min(100%, 420px);
  min-height: 0;
  margin-top: var(--tm-sp-2);
}

.flow-rack {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--lp-panel-line);
  background: var(--lp-panel-line);
}

.flow-rack > div {
  padding: var(--tm-sp-3);
  background: var(--lp-panel-2);
}

.flow-rack strong {
  display: block;
  margin-top: 6px;
  color: var(--lp-heat-bright);
  font-size: clamp(26px, 2.6vw, 36px);
  font-weight: 600;
  line-height: 1;
}

/* --- что оптимизируем --- */

.spec-list {
  margin: var(--tm-sp-8) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--tm-line-strong);
}

.spec-list li {
  display: grid;
  grid-template-columns: 64px minmax(220px, 0.5fr) minmax(0, 1fr) auto;
  gap: var(--tm-sp-3) var(--tm-sp-4);
  align-items: start;
  padding: var(--tm-sp-6) 0;
  border-bottom: 1px solid var(--tm-line);
}

.spec-index {
  padding-top: 3px;
  color: var(--lp-heat-dark);
  font-family: var(--tm-font-mono);
  font-size: 15px;
  font-weight: 600;
}

.spec-list h3 {
  margin: 0;
  font-size: 19px;
  font-weight: 600;
  line-height: 1.25;
}

.spec-list p {
  max-width: 58ch;
  margin: 0;
  color: var(--tm-text-2);
  font-size: 15px;
  line-height: 1.5;
  text-wrap: pretty;
}

.spec-tag {
  justify-self: end;
  border: 1px solid var(--tm-line-strong);
  border-radius: 2px;
  padding: 4px 8px;
  color: var(--tm-text-2);
  font-family: var(--tm-font-mono);
  font-size: var(--tm-fs-label);
  white-space: nowrap;
}

/* --- измеримый эффект --- */

.effect-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--tm-sp-4);
  margin-top: var(--tm-sp-8);
}

.effect-grid > div {
  min-height: 190px;
  display: grid;
  align-content: start;
  gap: var(--tm-sp-3);
  padding: var(--tm-sp-4);
  border: 1px solid var(--tm-line);
  border-top: 3px solid var(--lp-heat);
  border-radius: var(--tm-radius-m);
  background: var(--tm-surface);
  box-shadow: var(--tm-shadow-card);
}

.effect-grid strong {
  color: var(--tm-text);
  font-size: clamp(34px, 3.4vw, 52px);
  font-weight: 600;
  line-height: 0.95;
  letter-spacing: -0.01em;
}

.effect-grid p {
  margin: 0;
  color: var(--tm-text-2);
  font-size: var(--tm-fs-body);
  text-wrap: pretty;
}

/* --- как проходит внедрение --- */

.how-steps {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: var(--tm-sp-4);
  margin-top: var(--tm-sp-8);
}

.how-steps article {
  border-top: 1px solid var(--tm-line-strong);
  padding-top: var(--tm-sp-4);
}

.how-steps h3 {
  margin: var(--tm-sp-3) 0 0;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.25;
}

.how-steps p {
  margin: var(--tm-sp-2) 0 0;
  color: var(--tm-text-2);
  font-size: var(--tm-fs-body);
  line-height: 1.5;
  text-wrap: pretty;
}

/* --- облачный мониторинг --- */

.monitoring-section {
  display: grid;
  grid-template-columns: minmax(320px, 0.8fr) minmax(480px, 1.2fr);
  align-items: center;
  gap: clamp(32px, 5vw, 72px);
}

.monitoring-section .primary-link {
  margin-top: var(--tm-sp-6);
}

.dashboard-preview {
  padding: var(--tm-sp-4);
  border: 1px solid var(--tm-line);
  border-radius: var(--tm-radius-m);
  background: var(--tm-surface);
  box-shadow: var(--tm-shadow-card);
}

.preview-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--tm-sp-4);
  padding-bottom: var(--tm-sp-4);
  border-bottom: 1px solid var(--tm-line);
}

.preview-top strong {
  display: block;
  margin-top: var(--tm-sp-1);
  font-size: var(--tm-fs-h1);
  font-weight: 600;
}

.readonly-chip {
  border: 1px solid var(--tm-line-strong);
  border-radius: 2px;
  padding: 4px 8px;
  color: var(--tm-text-2);
  font-family: var(--tm-font-mono);
  font-size: var(--tm-fs-label);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  white-space: nowrap;
}

.preview-summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: var(--tm-sp-4) 0;
  border: 1px solid var(--tm-line);
  border-radius: var(--tm-radius-s);
  overflow: hidden;
  background: var(--tm-line);
}

.preview-summary > div {
  padding: var(--tm-sp-3);
  background: var(--tm-surface);
}

.preview-summary strong {
  display: block;
  margin-top: var(--tm-sp-1);
  font-size: var(--tm-fs-h2);
  font-weight: 600;
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--tm-sp-3);
}

/* --- для каких котельных --- */

.fit-groups {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--tm-sp-4);
  margin-top: var(--tm-sp-8);
}

.fit-group {
  display: grid;
  align-content: start;
  gap: var(--tm-sp-3);
  padding: var(--tm-sp-4);
  border: 1px solid var(--tm-line);
  border-radius: var(--tm-radius-m);
  background: var(--tm-surface);
  box-shadow: var(--tm-shadow-card);
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--tm-sp-2);
}

.chip-row span {
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--tm-line);
  border-radius: var(--tm-radius-s);
  padding: 0 12px;
  background: var(--tm-bg);
  color: var(--tm-text-2);
  font-size: var(--tm-fs-body-s);
  font-weight: 500;
}

.chip-row-mono span {
  font-family: var(--tm-font-mono);
  font-size: var(--tm-fs-caption);
  font-weight: 400;
}

/* --- контакты и форма --- */

.contacts-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(280px, 0.95fr);
  align-items: start;
  gap: clamp(32px, 5vw, 64px);
  margin-top: var(--tm-sp-8);
}

.lead-form {
  display: grid;
  gap: var(--tm-sp-4);
  padding: var(--tm-sp-6);
  border: 1px solid var(--tm-line);
  border-radius: var(--tm-radius-m);
  background: var(--tm-surface);
  box-shadow: var(--tm-shadow-card);
}

.lead-form label {
  display: grid;
  gap: 6px;
  color: var(--tm-text-2);
  font-size: var(--tm-fs-body-s);
  font-weight: 500;
}

.lead-form input,
.lead-form textarea {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--tm-line-strong);
  border-radius: var(--tm-radius-s);
  padding: 10px 12px;
  background: var(--tm-surface);
  color: var(--tm-text);
  font: inherit;
}

.lead-form textarea {
  min-height: 88px;
  resize: vertical;
}

.lead-form input:focus,
.lead-form textarea:focus {
  border-color: var(--tm-accent);
  outline: 2px solid rgb(29 91 135 / 0.25);
  outline-offset: 2px;
}

.lead-form button {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--tm-accent);
  border-radius: var(--tm-radius-s);
  padding: 0 18px;
  background: var(--tm-accent);
  color: #f7fbfd;
  font-weight: 600;
  transition: background-color 0.12s ease, transform 0.08s ease;
}

.lead-form button:hover {
  background: var(--tm-accent-hover);
}

.lead-form button:active {
  transform: scale(0.97);
}

.lead-note {
  margin: 0;
  color: var(--tm-text-3);
  font-size: var(--tm-fs-caption);
}

.contact-list {
  display: grid;
  gap: var(--tm-sp-3);
}

.contact-row {
  display: grid;
  gap: 4px;
  padding: var(--tm-sp-4);
  border: 1px solid var(--tm-line);
  border-radius: var(--tm-radius-m);
  background: var(--tm-surface);
  box-shadow: var(--tm-shadow-card);
}

.contact-row a {
  color: var(--tm-text);
  font-size: clamp(17px, 1.6vw, 20px);
  font-weight: 600;
  line-height: 1.3;
  text-decoration: none;
  overflow-wrap: anywhere;
  transition: color 0.12s ease;
}

.contact-row a:hover {
  color: var(--tm-accent);
}

/* --- футер --- */

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--tm-sp-3) var(--tm-sp-6);
  padding-top: var(--tm-sp-6);
  padding-bottom: var(--tm-sp-8);
  border-top: 1px solid var(--tm-line);
  color: var(--tm-text-3);
  font-size: var(--tm-fs-body-s);
}

.site-footer a {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  color: var(--tm-text-2);
  text-decoration: none;
  transition: color 0.12s ease;
}

.site-footer a:hover {
  color: var(--tm-accent);
}

/* --- landing responsive --- */

@media (max-width: 1180px) {
  .hero-section,
  .monitoring-section {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .flow-panel,
  .dashboard-preview {
    max-width: 720px;
  }

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

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

@media (max-width: 900px) {
  .spec-list li {
    grid-template-columns: 48px minmax(0, 1fr);
  }

  .spec-list p,
  .spec-list .spec-tag {
    grid-column: 2;
  }

  .spec-tag {
    justify-self: start;
  }

  .contacts-grid,
  .fit-groups {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 680px) {
  .site-header {
    flex-wrap: wrap;
    gap: var(--tm-sp-3);
    padding: var(--tm-sp-3) 14px;
  }

  .site-nav {
    order: 3;
    width: 100%;
    gap: var(--tm-sp-2) var(--tm-sp-3);
  }

  .hero-section,
  .site-section,
  .site-footer {
    padding-right: 14px;
    padding-left: 14px;
  }

  .hero-section {
    padding-top: var(--tm-sp-8);
  }

  .hero-copy h1 {
    font-size: 34px;
    line-height: 1.05;
  }

  .hero-lead,
  .section-copy p {
    font-size: 15px;
  }

  .hero-actions .primary-link,
  .hero-actions .secondary-link {
    flex: 1 1 100%;
  }

  .flow-chart {
    grid-template-columns: 1fr;
  }

  .flow-link {
    width: 1px;
    height: 20px;
    margin: 0 auto;
  }

  .flow-link::after {
    top: auto;
    right: auto;
    bottom: 0;
    left: -3px;
    border-top: 5px solid rgb(232 236 239 / 0.6);
    border-right: 3.5px solid transparent;
    border-bottom: 0;
    border-left: 3.5px solid transparent;
  }

  .flow-node-wide {
    width: 100%;
  }

  .flow-rack {
    grid-template-columns: 1fr;
  }

  .flow-rack > div {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: var(--tm-sp-3);
  }

  .flow-rack strong {
    margin-top: 0;
  }

  .effect-grid,
  .how-steps,
  .preview-grid {
    grid-template-columns: 1fr;
  }

  .effect-grid > div {
    min-height: 0;
  }

  .spec-list li {
    padding: var(--tm-sp-4) 0;
  }

  .lead-form {
    padding: var(--tm-sp-4);
  }

  .preview-top {
    align-items: flex-start;
  }
}

/* ============================================================
   Monitoring responsive (не менять - используется /monitoring)
   ============================================================ */

@media (max-width: 1180px) {
  .boiler-grid,
  .two-column {
    grid-template-columns: 1fr;
  }

  .boiler-card .metric-grid,
  .metric-grid {
    grid-template-columns: repeat(auto-fit, minmax(156px, 1fr));
  }
}

@media (max-width: 860px) {
  .controller-row {
    grid-template-columns: 1fr;
  }

  .brand-lockup-compact {
    display: none;
  }

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

  .top-actions {
    width: 100%;
    justify-content: space-between;
  }
}

@media (max-width: 680px) {
  .login {
    padding: var(--tm-sp-4);
  }

  .login-panel {
    grid-template-columns: 1fr;
    gap: var(--tm-sp-6);
    padding: var(--tm-sp-6);
  }

  .shell {
    display: flex;
    flex-direction: column;
    padding: 0 14px 76px;
  }

  .topbar {
    order: 0;
    padding: var(--tm-sp-3) 0;
  }

  .summary-strip {
    order: 1;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    margin: var(--tm-sp-3) 0 var(--tm-sp-4);
  }

  .summary-strip > div {
    padding: var(--tm-sp-3);
  }

  .summary-strip .label {
    font-size: 10px;
  }

  .summary-strip strong {
    font-size: 19px;
  }

  #boilers-section {
    order: 2;
  }

  #controllers-section {
    order: 3;
  }

  #alarms-section {
    order: 4;
  }

  #trends-section {
    order: 5;
  }

  .section-head {
    align-items: flex-start;
    flex-direction: column;
    gap: 3px;
  }

  .boiler-title {
    align-items: stretch;
  }

  .boiler-title .status-chip {
    min-width: 126px;
  }

  .alarm-row {
    min-height: 48px;
    grid-template-columns: 1fr;
  }

  .mobile-nav {
    height: 56px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    position: fixed;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 20;
    border-top: 1px solid var(--tm-line);
    background: var(--tm-surface);
  }

  .mobile-nav a {
    display: grid;
    place-items: center;
    color: var(--tm-text-2);
    font-size: var(--tm-fs-caption);
    font-weight: 500;
    text-decoration: none;
  }

  .mobile-nav a:focus-visible {
    outline: 2px solid rgb(29 91 135 / 0.25);
    outline-offset: -2px;
  }
}

@media (max-width: 360px) {
  .boiler-card .metric-grid,
  .metric-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   Landing v2: AПК котельной. Изолировано от /monitoring.
   ============================================================ */

.landing-body {
  min-width: 320px;
  overflow-x: hidden;
  background: var(--tm-bg);
  color: var(--tm-text);
}

.landing-body a {
  color: inherit;
}

.landing-header,
.landing-hero,
.landing-section,
.landing-footer {
  width: min(1440px, calc(100% - 48px));
  margin-right: auto;
  margin-left: auto;
}

.landing-header {
  min-height: 72px;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--tm-sp-6);
  position: sticky;
  top: 0;
  z-index: 30;
  border-bottom: 1px solid var(--tm-line);
  background: rgb(237 240 242 / 0.96);
  backdrop-filter: blur(8px);
}

.landing-brand {
  color: var(--tm-text);
  text-decoration: none;
}

.landing-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--tm-sp-1);
  min-width: 0;
}

.landing-nav a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 var(--tm-sp-3);
  border: 1px solid transparent;
  border-radius: var(--tm-radius-s);
  color: var(--tm-text-2);
  font-size: var(--tm-fs-body-s);
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition:
    border-color 120ms ease,
    background-color 120ms ease,
    color 120ms ease;
}

.landing-nav a:hover,
.landing-nav a:focus-visible {
  border-color: var(--tm-line);
  background: var(--tm-surface);
  color: var(--tm-text);
}

.landing-button {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--tm-sp-2);
  padding: 0 var(--tm-sp-4);
  border: 1px solid transparent;
  border-radius: var(--tm-radius-s);
  font-size: var(--tm-fs-body);
  font-weight: 700;
  line-height: 1.1;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  transition:
    background-color 120ms ease,
    border-color 120ms ease,
    color 120ms ease,
    transform 120ms ease;
}

.landing-button:active {
  transform: scale(0.98);
}

.landing-button:focus-visible,
.landing-form input:focus-visible,
.landing-form textarea:focus-visible {
  outline: 2px solid rgb(29 91 135 / 0.25);
  outline-offset: 2px;
}

.landing-body .landing-button-primary {
  border-color: var(--tm-accent);
  background: var(--tm-accent);
  color: #fff;
}

.landing-body .landing-button-primary:hover,
.landing-body .landing-button-primary:focus-visible {
  border-color: var(--tm-accent-hover);
  background: var(--tm-accent-hover);
  color: #fff;
}

.landing-body .landing-button-secondary {
  border-color: var(--tm-line-strong);
  background: var(--tm-surface);
  color: var(--tm-accent);
}

.landing-body .landing-button-secondary:hover,
.landing-body .landing-button-secondary:focus-visible {
  border-color: var(--tm-accent);
  background: #f8fafb;
  color: var(--tm-accent-hover);
}

.landing-hero {
  display: grid;
  align-content: center;
  gap: var(--tm-sp-8);
  padding: var(--tm-sp-12) 0 var(--tm-sp-8);
}

.landing-hero-copy {
  max-width: 980px;
}

.landing-kicker {
  margin: 0 0 var(--tm-sp-3);
  color: var(--tm-accent);
  font-size: var(--tm-fs-label);
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.2;
  text-transform: uppercase;
}

.landing-hero h1,
.landing-section-head h2 {
  margin: 0;
  color: var(--tm-text);
  font-weight: 700;
  letter-spacing: 0;
  text-wrap: balance;
}

.landing-hero h1 {
  max-width: 1120px;
  font-size: 64px;
  line-height: 1.02;
  overflow-wrap: anywhere;
}

.landing-lead,
.landing-section-head p,
.landing-pain-grid p,
.implementation-grid p,
.optimization-list p,
.metrics-grid p,
.case-grid p,
.landing-form p {
  text-wrap: pretty;
}

.landing-lead {
  max-width: 860px;
  margin: var(--tm-sp-4) 0 0;
  color: var(--tm-text-2);
  font-size: 20px;
  line-height: 1.55;
}

.landing-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--tm-sp-3);
  margin-top: var(--tm-sp-6);
}

.landing-system-map {
  min-height: 176px;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: var(--tm-sp-3);
  position: relative;
  padding: var(--tm-sp-2) 0;
}

.map-rail {
  height: 2px;
  position: absolute;
  top: 50%;
  right: 4%;
  left: 4%;
  background: var(--tm-line-strong);
}

.map-node {
  min-width: 0;
  min-height: 160px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  z-index: 1;
  padding: var(--tm-sp-4);
  border: 1px solid var(--tm-line);
  border-top: 3px solid var(--tm-line-strong);
  border-radius: var(--tm-radius-m);
  background: var(--tm-surface);
  box-shadow: var(--tm-shadow-card);
}

.map-node::before {
  content: "";
  width: 9px;
  height: 9px;
  position: absolute;
  top: calc(50% - 4px);
  left: -5px;
  border: 2px solid var(--tm-surface);
  border-radius: 999px;
  background: var(--tm-accent);
}

.map-node:first-of-type::before {
  display: none;
}

.map-node span,
.metrics-grid span,
.case-grid span,
.contacts-card span,
.monitor-preview span,
.mode-card-head span,
.landing-pain-grid span {
  color: var(--tm-text-3);
  font-size: var(--tm-fs-label);
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.2;
  text-transform: uppercase;
}

.map-node strong {
  margin: var(--tm-sp-3) 0 var(--tm-sp-2);
  color: var(--tm-text);
  font-size: var(--tm-fs-h2);
  line-height: 1.25;
  overflow-wrap: anywhere;
}

.map-node p {
  margin: 0;
  color: var(--tm-text-2);
  font-size: var(--tm-fs-body-s);
  line-height: 1.4;
  overflow-wrap: anywhere;
}

.map-node-process {
  border-top-color: #a8622e;
}

.map-node-controller {
  border-top-color: var(--tm-accent);
}

.landing-section {
  scroll-margin-top: 96px;
  padding: 84px 0;
}

.landing-section-head {
  max-width: 900px;
  margin-bottom: var(--tm-sp-8);
}

.landing-section-head h2 {
  font-size: 38px;
  line-height: 1.12;
}

.landing-section-head p {
  max-width: 820px;
  margin: var(--tm-sp-4) 0 0;
  color: var(--tm-text-2);
  font-size: 17px;
  line-height: 1.55;
}

.landing-pain-grid,
.implementation-grid,
.metrics-grid,
.case-grid {
  display: grid;
  gap: var(--tm-sp-3);
}

.landing-pain-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.landing-pain-grid article,
.implementation-grid article,
.optimization-list article,
.metrics-grid article,
.case-grid article,
.contacts-card,
.mode-card,
.monitor-preview,
.landing-form {
  border: 1px solid var(--tm-line);
  border-radius: var(--tm-radius-m);
  background: var(--tm-surface);
  box-shadow: var(--tm-shadow-card);
}

.landing-pain-grid article,
.implementation-grid article,
.optimization-list article,
.metrics-grid article,
.case-grid article {
  padding: var(--tm-sp-4);
}

.landing-pain-grid h3,
.implementation-grid h3,
.optimization-list h3,
.case-grid h3 {
  margin: var(--tm-sp-3) 0 var(--tm-sp-2);
  color: var(--tm-text);
  font-size: 18px;
  line-height: 1.25;
  text-wrap: balance;
}

.landing-pain-grid p,
.implementation-grid p,
.optimization-list p,
.case-grid p,
.metrics-grid p {
  margin: 0;
  color: var(--tm-text-2);
  font-size: var(--tm-fs-body);
  line-height: 1.5;
}

.landing-band {
  width: 100%;
  max-width: none;
  padding-right: max(24px, calc((100% - 1440px) / 2));
  padding-left: max(24px, calc((100% - 1440px) / 2));
  background: var(--tm-text);
  color: #e8ecef;
}

.landing-band .landing-kicker {
  color: #5ca0cc;
}

.landing-band .landing-section-head h2,
.landing-band .implementation-grid h3 {
  color: #fff;
}

.landing-band .landing-section-head p,
.landing-band .implementation-grid p {
  color: #b8c0c8;
}

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

.implementation-grid article {
  border-color: #2b333b;
  background: #1f252b;
  box-shadow: none;
}

.implementation-grid h3 {
  margin-top: 0;
}

.optimization-layout {
  display: grid;
  grid-template-columns: minmax(320px, 0.78fr) minmax(0, 1fr);
  gap: var(--tm-sp-4);
  align-items: start;
}

.mode-card {
  padding: var(--tm-sp-4);
}

.mode-card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--tm-sp-4);
  margin-bottom: var(--tm-sp-4);
}

.mode-card-head strong {
  color: var(--tm-text);
  font-size: var(--tm-fs-body-s);
  line-height: 1.2;
  text-align: right;
}

.mode-table {
  display: grid;
  gap: 0;
  overflow: hidden;
  border: 1px solid var(--tm-line);
  border-radius: var(--tm-radius-s);
}

.mode-table > div {
  min-height: 44px;
  display: grid;
  grid-template-columns: 0.85fr repeat(3, 1fr);
  align-items: center;
  gap: var(--tm-sp-2);
  padding: 0 var(--tm-sp-3);
  border-bottom: 1px solid var(--tm-line);
  background: #f8fafb;
}

.mode-table > div:first-child {
  min-height: 36px;
  background: var(--tm-bg);
  color: var(--tm-text-3);
  font-size: var(--tm-fs-label);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.mode-table > div:last-child {
  border-bottom: 0;
}

.mode-table span,
.mode-table strong {
  font-size: var(--tm-fs-body-s);
  line-height: 1.2;
}

.mode-table strong {
  color: var(--tm-accent);
}

.optimization-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--tm-sp-3);
}

.metrics-section {
  border-top: 1px solid var(--tm-line);
  border-bottom: 1px solid var(--tm-line);
}

.metrics-grid {
  grid-template-columns: repeat(6, minmax(0, 1fr));
}

.metrics-grid article {
  min-height: 172px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.metrics-grid strong {
  margin: var(--tm-sp-4) 0 var(--tm-sp-2);
  color: var(--tm-text);
  font-size: 30px;
  line-height: 1;
}

.case-section {
  padding-top: 88px;
}

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

.case-grid article {
  border-top: 3px solid #a8622e;
}

.case-grid article:nth-child(2) {
  border-top-color: var(--tm-accent);
}

.case-grid article:nth-child(3) {
  border-top-color: var(--tm-line-strong);
}

.monitoring-landing-section {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(420px, 1fr);
  gap: var(--tm-sp-8);
  align-items: center;
  border-top: 1px solid var(--tm-line);
}

.monitoring-landing-section .landing-section-head {
  margin-bottom: 0;
}

.monitoring-landing-section .landing-button {
  margin-top: var(--tm-sp-6);
}

.monitor-preview {
  padding: var(--tm-sp-4);
}

.monitor-preview-top,
.monitor-preview-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--tm-sp-3);
}

.monitor-preview-top {
  padding-bottom: var(--tm-sp-4);
  border-bottom: 1px solid var(--tm-line);
}

.monitor-preview-top strong {
  display: block;
  margin-top: var(--tm-sp-1);
  color: var(--tm-text);
  font-size: var(--tm-fs-h1);
  line-height: 1.15;
}

.status-pill {
  min-height: 24px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0 var(--tm-sp-2);
  border-radius: var(--tm-radius-s);
  font-size: var(--tm-fs-label);
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1;
  text-transform: uppercase;
}

.status-pill::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: currentColor;
}

.status-pill-ok {
  background: var(--tm-ok-tint);
  color: var(--tm-ok-text);
}

.monitor-preview-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--tm-sp-3);
  padding: var(--tm-sp-4) 0;
}

.monitor-preview-grid article {
  min-height: 112px;
  padding: var(--tm-sp-3);
  border: 1px solid var(--tm-line);
  border-left: var(--tm-status-bar-w) solid transparent;
  border-radius: var(--tm-radius-s);
  background: #f8fafb;
}

.monitor-preview-grid strong {
  display: block;
  margin-top: var(--tm-sp-3);
  color: var(--tm-text);
  font-size: var(--tm-fs-value);
  line-height: 1.08;
}

.monitor-preview-footer {
  padding-top: var(--tm-sp-4);
  border-top: 1px solid var(--tm-line);
  color: var(--tm-text-2);
  font-size: var(--tm-fs-body-s);
}

.contacts-landing-section {
  border-top: 1px solid var(--tm-line);
}

.contacts-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.36fr);
  gap: var(--tm-sp-4);
  align-items: start;
}

.landing-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--tm-sp-4);
  padding: var(--tm-sp-6);
}

.landing-form label {
  display: grid;
  gap: var(--tm-sp-2);
  color: var(--tm-text-2);
  font-size: var(--tm-fs-body-s);
  font-weight: 700;
}

.landing-form label:nth-child(n + 3),
.landing-form button,
.landing-form p {
  grid-column: 1 / -1;
}

.landing-form input,
.landing-form textarea {
  width: 100%;
  min-height: 44px;
  padding: var(--tm-sp-3);
  border: 1px solid var(--tm-line-strong);
  border-radius: var(--tm-radius-s);
  background: var(--tm-surface);
  color: var(--tm-text);
  font: inherit;
  font-weight: 500;
  resize: vertical;
  transition:
    border-color 120ms ease,
    box-shadow 120ms ease;
}

.landing-form input:focus,
.landing-form textarea:focus {
  border-color: var(--tm-accent);
  box-shadow: 0 0 0 2px rgb(29 91 135 / 0.12);
}

.landing-form button {
  width: fit-content;
}

.landing-form p {
  margin: 0;
  color: var(--tm-text-3);
  font-size: var(--tm-fs-body-s);
}

.contacts-card {
  display: grid;
  gap: var(--tm-sp-4);
  padding: var(--tm-sp-6);
}

.contacts-card div {
  display: grid;
  gap: var(--tm-sp-1);
  padding-bottom: var(--tm-sp-4);
  border-bottom: 1px solid var(--tm-line);
}

.contacts-card div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.contacts-card a {
  color: var(--tm-accent);
  font-size: var(--tm-fs-h2);
  font-weight: 700;
  text-decoration: none;
}

.contacts-card a:hover,
.contacts-card a:focus-visible {
  color: var(--tm-accent-hover);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.landing-footer {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--tm-sp-4);
  padding: var(--tm-sp-6) 0;
  border-top: 1px solid var(--tm-line);
  color: var(--tm-text-2);
  font-size: var(--tm-fs-body-s);
}

.landing-footer a {
  color: var(--tm-accent);
  text-decoration: none;
}

.landing-footer a:hover,
.landing-footer a:focus-visible {
  text-decoration: underline;
  text-underline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  .landing-nav a,
  .landing-button,
  .landing-form input,
  .landing-form textarea {
    transition-duration: 1ms;
  }
}

@media (max-width: 1180px) {
  .landing-header {
    grid-template-columns: auto 1fr;
  }

  .landing-nav {
    grid-column: 1 / -1;
    grid-row: 2;
    justify-content: flex-start;
    padding-bottom: var(--tm-sp-2);
    overflow-x: auto;
  }

  .landing-header-cta {
    justify-self: end;
  }

  .landing-hero {
    min-height: auto;
  }

  .landing-system-map,
  .landing-pain-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .map-rail,
  .map-node::before {
    display: none;
  }

  .implementation-grid,
  .metrics-grid,
  .monitor-preview-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .monitoring-landing-section,
  .optimization-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 860px) {
  .landing-header,
  .landing-hero,
  .landing-section,
  .landing-footer {
    width: min(1440px, calc(100% - 32px));
  }

  .landing-header {
    min-height: 64px;
    gap: var(--tm-sp-3);
  }

  .landing-hero {
    padding-top: var(--tm-sp-8);
  }

  .landing-hero h1 {
    font-size: 44px;
    line-height: 1.08;
  }

  .landing-lead {
    font-size: 18px;
  }

  .landing-section {
    padding: 64px 0;
  }

  .landing-section-head h2 {
    font-size: 30px;
    line-height: 1.16;
  }

  .landing-pain-grid,
  .optimization-list,
  .case-grid,
  .contacts-layout {
    grid-template-columns: 1fr;
  }

  .landing-system-map {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--tm-sp-2);
  }

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

  .landing-band {
    padding-right: 16px;
    padding-left: 16px;
  }

  .map-node {
    min-height: 104px;
    padding: var(--tm-sp-3);
  }

  .map-node strong {
    margin: var(--tm-sp-2) 0 0;
    font-size: var(--tm-fs-body-s);
  }

  .map-node p {
    display: none;
  }

  .landing-form {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 560px) {
  .landing-body {
    background: var(--tm-bg);
  }

  .landing-header,
  .landing-hero,
  .landing-section,
  .landing-footer {
    width: auto;
    margin-right: 12px;
    margin-left: 12px;
  }

  .landing-header {
    grid-template-columns: 1fr;
    position: static;
    padding: var(--tm-sp-3) 0;
  }

  .landing-brand {
    justify-self: start;
  }

  .landing-header-cta {
    width: 100%;
    justify-self: stretch;
  }

  .landing-nav {
    display: none;
  }

  .landing-hero {
    gap: var(--tm-sp-4);
    padding-top: 20px;
    padding-bottom: var(--tm-sp-6);
  }

  .landing-hero-copy,
  .landing-actions,
  .landing-system-map {
    max-width: calc(100vw - 48px);
  }

  .landing-hero h1 {
    max-width: calc(100vw - 48px);
    font-size: 28px;
    line-height: 1.1;
    word-break: normal;
  }

  .landing-lead {
    max-width: 320px;
    margin-top: var(--tm-sp-3);
    font-size: 15px;
  }

  .landing-actions {
    gap: var(--tm-sp-2);
    margin-top: 20px;
  }

  .landing-actions,
  .landing-actions .landing-button,
  .monitoring-landing-section .landing-button,
  .landing-form button {
    width: 100%;
  }

  .landing-section {
    padding: 52px 0;
  }

  .landing-section-head {
    margin-bottom: var(--tm-sp-6);
  }

  .landing-section-head h2 {
    font-size: 26px;
  }

  .landing-section-head p {
    font-size: 15px;
  }

  .implementation-grid,
  .metrics-grid,
  .monitor-preview-grid {
    grid-template-columns: 1fr;
  }

  .landing-system-map {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .map-node {
    min-height: 64px;
    display: grid;
    grid-template-columns: 1fr;
    align-items: start;
    gap: var(--tm-sp-1);
    padding: var(--tm-sp-2) var(--tm-sp-3);
  }

  .map-node span {
    font-size: 10px;
  }

  .map-node strong {
    margin: 0;
    font-size: 12px;
  }

  .mode-table > div {
    grid-template-columns: 0.8fr repeat(3, minmax(54px, 1fr));
    gap: 6px;
    padding: 0 var(--tm-sp-2);
  }

  .mode-table span,
  .mode-table strong {
    font-size: 11px;
  }

  .metrics-grid article {
    min-height: 136px;
  }

  .monitor-preview-top,
  .monitor-preview-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .landing-form,
  .contacts-card,
  .monitor-preview {
    padding: var(--tm-sp-4);
  }
}

/* ============================================================
   PLC Copilot inspired landing for Thermicon. Isolated from /monitoring.
   ============================================================ */

.plc-body {
  --plc-dark: #07090a;
  --plc-dark-2: #101417;
  --plc-ink: #1a2026;
  --plc-paper: #eef1f2;
  --plc-panel: #f8f9f7;
  --plc-muted: #65707b;
  --plc-line: #d7dde1;
  --plc-copper: #f28b20;
  --plc-copper-2: #ffad4d;
  --plc-blue: #1d5b87;
  min-width: 320px;
  overflow-x: hidden;
  background: var(--plc-paper);
  color: var(--plc-ink);
}

.plc-body a {
  color: inherit;
}

.plc-header,
.plc-hero,
.plc-release,
.plc-section,
.plc-footer {
  width: min(1440px, calc(100% - 80px));
  margin-right: auto;
  margin-left: auto;
}

.plc-header {
  min-height: 72px;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto auto;
  align-items: center;
  gap: var(--tm-sp-6);
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  z-index: 30;
  color: #f4f6f7;
}

.plc-brand {
  color: #f4f6f7;
  text-decoration: none;
}

.plc-header .brand-mark {
  background: #f4f6f7;
  color: var(--plc-dark);
}

.plc-header .brand-name strong,
.plc-header .brand-name span {
  color: #f4f6f7;
}

.plc-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--tm-sp-2);
  min-width: 0;
}

.plc-nav a,
.plc-link {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 var(--tm-sp-3);
  border: 1px solid transparent;
  border-radius: 999px;
  color: rgb(244 246 247 / 0.78);
  font-size: var(--tm-fs-body-s);
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition:
    border-color 140ms ease,
    background-color 140ms ease,
    color 140ms ease,
    transform 140ms ease;
}

.plc-nav a:hover,
.plc-nav a:focus-visible,
.plc-link:hover,
.plc-link:focus-visible {
  border-color: rgb(244 246 247 / 0.18);
  background: rgb(244 246 247 / 0.06);
  color: #fff;
}

.plc-button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 var(--tm-sp-6);
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: var(--tm-fs-body);
  font-weight: 800;
  line-height: 1.1;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  transition:
    background-color 140ms ease,
    border-color 140ms ease,
    color 140ms ease,
    transform 140ms ease;
}

.plc-button:active,
.plc-nav a:active,
.plc-link:active {
  transform: scale(0.98);
}

.plc-button:focus-visible,
.plc-nav a:focus-visible,
.plc-link:focus-visible,
.plc-form input:focus-visible,
.plc-form textarea:focus-visible {
  outline: 2px solid rgb(242 139 32 / 0.42);
  outline-offset: 3px;
}

.plc-button-primary {
  border-color: var(--plc-copper);
  background: var(--plc-copper);
  color: #111416;
}

.plc-button-primary:hover,
.plc-button-primary:focus-visible {
  border-color: var(--plc-copper-2);
  background: var(--plc-copper-2);
  color: #111416;
}

.plc-button-ghost {
  border-color: rgb(244 246 247 / 0.24);
  background: rgb(244 246 247 / 0.04);
  color: #f4f6f7;
}

.plc-button-ghost::before {
  content: "";
  width: 8px;
  height: 8px;
  margin-right: var(--tm-sp-2);
  border-radius: 999px;
  background: var(--plc-copper);
}

.plc-button-ghost:hover,
.plc-button-ghost:focus-visible {
  border-color: rgb(244 246 247 / 0.36);
  background: rgb(244 246 247 / 0.08);
}

.plc-hero {
  min-height: 940px;
  display: grid;
  grid-template-columns: minmax(0, 0.94fr) minmax(420px, 1.06fr);
  align-items: center;
  gap: var(--tm-sp-8);
  position: relative;
  padding: 120px 0 92px;
  color: #f4f6f7;
}

.plc-hero::before {
  content: "";
  width: 100vw;
  position: absolute;
  top: 0;
  right: 50%;
  bottom: 0;
  z-index: -2;
  transform: translateX(50%);
  background:
    linear-gradient(rgb(255 255 255 / 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgb(255 255 255 / 0.045) 1px, transparent 1px),
    radial-gradient(circle at 78% 48%, rgb(242 139 32 / 0.24), transparent 28%),
    var(--plc-dark);
  background-size: 120px 120px, 120px 120px, auto, auto;
}

.plc-hero::after {
  content: "";
  width: 100vw;
  position: absolute;
  right: 50%;
  bottom: 0;
  left: 50%;
  height: 220px;
  z-index: -1;
  transform: translateX(-50%);
  background: linear-gradient(180deg, transparent, var(--plc-paper));
}

.plc-line-label {
  display: flex;
  align-items: center;
  gap: var(--tm-sp-3);
  margin: 0 0 var(--tm-sp-6);
  color: var(--plc-copper);
  font-family: var(--tm-font-mono);
  font-size: var(--tm-fs-body-s);
  line-height: 1.3;
}

.plc-line-label::before {
  content: "";
  width: 48px;
  height: 1px;
  background: rgb(244 246 247 / 0.42);
}

.plc-hero h1 {
  max-width: 920px;
  margin: 0;
  color: #f4f6f7;
  font-size: clamp(44px, 4.3vw, 64px);
  font-weight: 400;
  letter-spacing: 0;
  line-height: 0.98;
  text-wrap: balance;
}

.plc-hero-lead {
  max-width: 620px;
  margin: var(--tm-sp-8) 0 0;
  color: rgb(244 246 247 / 0.72);
  font-size: 21px;
  line-height: 1.5;
  text-wrap: pretty;
}

.plc-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--tm-sp-3);
  margin-top: var(--tm-sp-8);
}

.plc-hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: var(--tm-sp-8);
  margin-top: 76px;
  color: rgb(244 246 247 / 0.8);
}

.plc-hero-facts span {
  display: inline-flex;
  align-items: center;
  gap: var(--tm-sp-2);
  font-size: var(--tm-fs-body);
}

.plc-hero-facts span::before {
  content: "";
  width: 10px;
  height: 10px;
  border: 2px solid var(--plc-copper);
  border-top: 0;
  border-left: 0;
  transform: rotate(45deg) translateY(-2px);
}

.plc-hero-visual {
  min-height: 620px;
  position: relative;
}

.plc-plant-scene {
  min-height: 620px;
  position: relative;
}

.plc-boiler {
  width: min(520px, 86%);
  aspect-ratio: 1.62;
  position: absolute;
  right: 4%;
  bottom: 84px;
  border: 1px solid rgb(244 246 247 / 0.15);
  border-radius: 260px 260px 36px 36px;
  background:
    linear-gradient(145deg, rgb(255 255 255 / 0.18), rgb(255 255 255 / 0.02) 40%, rgb(0 0 0 / 0.2)),
    #23282a;
  box-shadow:
    inset 0 0 0 1px rgb(255 255 255 / 0.07),
    0 34px 120px rgb(0 0 0 / 0.52);
}

.plc-flame {
  width: 118px;
  height: 118px;
  display: block;
  position: absolute;
  right: 13%;
  bottom: 24%;
  border-radius: 24px 80px 40px 76px;
  background:
    radial-gradient(circle at 54% 65%, #ffe08a 0 18%, transparent 19%),
    radial-gradient(circle at 50% 48%, #ffad4d 0 42%, transparent 43%),
    var(--plc-copper);
  filter: drop-shadow(0 0 42px rgb(242 139 32 / 0.68));
  transform: rotate(42deg);
}

.plc-pipe {
  display: block;
  position: absolute;
  right: 20%;
  left: -18%;
  height: 18px;
  border: 1px solid rgb(255 255 255 / 0.14);
  border-radius: 999px;
  background: #596066;
}

.plc-pipe-top {
  top: -42px;
}

.plc-pipe-bottom {
  bottom: -40px;
}

.plc-cabinet {
  width: 250px;
  min-height: 360px;
  position: absolute;
  top: 84px;
  right: 46%;
  padding: var(--tm-sp-4);
  border: 1px solid rgb(244 246 247 / 0.2);
  border-radius: 10px;
  background: linear-gradient(145deg, #dfe3e5, #aab2b8);
  color: #111416;
  box-shadow: 0 30px 90px rgb(0 0 0 / 0.48);
}

.plc-cabinet-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--tm-sp-3);
  padding-bottom: var(--tm-sp-3);
  border-bottom: 1px solid rgb(17 20 22 / 0.18);
}

.plc-cabinet-top span,
.plc-cabinet-top strong,
.plc-display-grid span,
.plc-signal-card span,
.plc-monitor-card span,
.plc-file-head span,
.plc-mode-head span,
.plc-impact-list span,
.plc-monitor-top span,
.plc-monitor-grid span {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1.2;
  text-transform: uppercase;
}

.plc-display-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--tm-sp-3);
  margin-top: var(--tm-sp-4);
}

.plc-display-grid div {
  min-height: 76px;
  display: grid;
  align-content: center;
  gap: var(--tm-sp-1);
  padding: var(--tm-sp-2);
  border: 1px solid rgb(17 20 22 / 0.18);
  border-radius: var(--tm-radius-s);
  background: #161b1e;
  color: #f4f6f7;
}

.plc-display-grid span {
  color: rgb(244 246 247 / 0.58);
}

.plc-display-grid strong {
  color: #87d39a;
  font-family: var(--tm-font-mono);
  font-size: 22px;
  line-height: 1;
}

.plc-lights {
  display: grid;
  grid-template-columns: repeat(3, 26px);
  gap: var(--tm-sp-3);
  margin-top: var(--tm-sp-6);
}

.plc-lights span {
  width: 24px;
  height: 24px;
  border: 3px solid rgb(17 20 22 / 0.24);
  border-radius: 999px;
  background: var(--tm-ok);
  box-shadow: 0 0 18px rgb(46 156 74 / 0.35);
}

.plc-lights span:nth-child(3),
.plc-lights span:nth-child(5) {
  background: var(--tm-warn);
  box-shadow: 0 0 18px rgb(227 154 11 / 0.35);
}

.plc-signal-card,
.plc-monitor-card {
  width: 270px;
  position: absolute;
  padding: var(--tm-sp-4);
  border: 1px solid rgb(244 246 247 / 0.18);
  border-radius: 14px;
  background: rgb(7 9 10 / 0.84);
  color: #f4f6f7;
  box-shadow: 0 28px 80px rgb(0 0 0 / 0.35);
}

.plc-signal-card {
  right: 0;
  top: 122px;
}

.plc-monitor-card {
  right: 8%;
  bottom: 0;
}

.plc-signal-card strong,
.plc-monitor-card strong {
  display: block;
  margin: var(--tm-sp-2) 0;
  font-size: var(--tm-fs-h2);
}

.plc-signal-card p,
.plc-monitor-card p {
  margin: 0;
  color: rgb(244 246 247 / 0.66);
  font-size: var(--tm-fs-body-s);
}

.plc-release {
  min-height: 78px;
  display: flex;
  align-items: center;
  gap: var(--tm-sp-4);
  position: relative;
  z-index: 2;
  margin-top: -38px;
  padding: 0 var(--tm-sp-6);
  border: 1px solid var(--plc-line);
  border-radius: 999px;
  background: var(--plc-panel);
  box-shadow: 0 20px 60px rgb(16 24 32 / 0.08);
}

.plc-release span {
  flex: 0 0 auto;
  color: var(--plc-copper);
  font-family: var(--tm-font-mono);
  font-size: var(--tm-fs-body-s);
  font-weight: 700;
}

.plc-release strong {
  min-width: 0;
  color: var(--plc-ink);
  font-size: var(--tm-fs-body);
  line-height: 1.35;
}

.plc-section {
  padding: 106px 0;
}

.plc-section-title {
  max-width: 920px;
  margin-bottom: var(--tm-sp-8);
}

.plc-section-title p,
.plc-contact-copy p {
  margin: 0 0 var(--tm-sp-3);
  color: var(--plc-copper);
  font-family: var(--tm-font-mono);
  font-size: var(--tm-fs-body-s);
  font-weight: 700;
}

.plc-section-title h2,
.plc-contact-copy h2 {
  margin: 0;
  color: var(--plc-ink);
  font-size: clamp(34px, 5vw, 70px);
  font-weight: 500;
  letter-spacing: 0;
  line-height: 1.02;
  text-wrap: balance;
}

.plc-problem-layout,
.plc-optimization-layout,
.plc-monitoring-layout,
.plc-contact {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(380px, 1fr);
  gap: var(--tm-sp-8);
  align-items: start;
}

.plc-problem-copy {
  max-width: 720px;
}

.plc-problem-copy p,
.plc-monitor-copy p {
  margin: 0;
  color: var(--plc-muted);
  font-size: 20px;
  line-height: 1.6;
  text-wrap: pretty;
}

.plc-problem-copy ul {
  display: grid;
  gap: var(--tm-sp-3);
  margin: var(--tm-sp-6) 0 0;
  padding: 0;
  list-style: none;
}

.plc-problem-copy li {
  display: flex;
  gap: var(--tm-sp-3);
  color: var(--plc-ink);
  font-size: 17px;
  line-height: 1.45;
}

.plc-problem-copy li::before {
  content: "";
  width: 8px;
  height: 8px;
  flex: 0 0 auto;
  margin-top: 9px;
  border-radius: 999px;
  background: var(--plc-copper);
}

.plc-tech-file,
.plc-mode-map,
.plc-monitor-shell,
.plc-form {
  border: 1px solid var(--plc-line);
  border-radius: 14px;
  background: var(--plc-panel);
  box-shadow: 0 18px 48px rgb(16 24 32 / 0.06);
}

.plc-tech-file {
  overflow: hidden;
}

.plc-file-head {
  min-height: 54px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--tm-sp-4);
  padding: 0 var(--tm-sp-4);
  border-bottom: 1px solid var(--plc-line);
  background: #e8ecef;
}

.plc-file-head span {
  color: var(--plc-muted);
  font-family: var(--tm-font-mono);
}

.plc-file-head strong {
  color: var(--plc-ink);
  font-size: var(--tm-fs-body-s);
}

.plc-tech-file pre {
  margin: 0;
  overflow-x: auto;
  padding: var(--tm-sp-6);
  background: #111416;
  color: #d7dde1;
  font-family: var(--tm-font-mono);
  font-size: 14px;
  line-height: 1.72;
}

.plc-tech-file p {
  margin: 0;
  padding: var(--tm-sp-4) var(--tm-sp-6);
  color: var(--plc-muted);
  font-size: var(--tm-fs-body);
  line-height: 1.45;
}

.plc-steps {
  width: 100%;
  max-width: none;
  padding-right: max(40px, calc((100% - 1440px) / 2));
  padding-left: max(40px, calc((100% - 1440px) / 2));
  background: var(--plc-dark);
  color: #f4f6f7;
}

.plc-steps .plc-section-title h2 {
  color: #f4f6f7;
}

.plc-step-grid,
.plc-case-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--tm-sp-4);
}

.plc-step-grid article {
  min-height: 300px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: var(--tm-sp-6);
  border: 1px solid rgb(244 246 247 / 0.16);
  border-radius: 18px;
  background: #111416;
}

.plc-step-grid span {
  color: var(--plc-copper);
  font-family: var(--tm-font-mono);
  font-size: 36px;
  line-height: 1;
}

.plc-step-grid h3,
.plc-optimization-copy h3,
.plc-case-grid h3 {
  margin: 0;
  color: inherit;
  font-size: 24px;
  line-height: 1.16;
  text-wrap: balance;
}

.plc-step-grid p,
.plc-optimization-copy p,
.plc-case-grid p {
  margin: var(--tm-sp-4) 0 0;
  color: rgb(244 246 247 / 0.68);
  font-size: 16px;
  line-height: 1.55;
  text-wrap: pretty;
}

.plc-mode-map {
  overflow: hidden;
}

.plc-mode-row {
  min-height: 58px;
  display: grid;
  grid-template-columns: 0.86fr repeat(4, minmax(0, 1fr));
  align-items: center;
  gap: var(--tm-sp-3);
  padding: 0 var(--tm-sp-4);
  border-bottom: 1px solid var(--plc-line);
  color: var(--plc-muted);
  font-size: var(--tm-fs-body-s);
}

.plc-mode-row:last-child {
  border-bottom: 0;
}

.plc-mode-head {
  min-height: 44px;
  background: #e8ecef;
  color: var(--plc-muted);
}

.plc-mode-row strong {
  color: var(--plc-ink);
  font-family: var(--tm-font-mono);
}

.plc-mode-row.is-active {
  background: rgb(242 139 32 / 0.12);
  color: var(--plc-ink);
}

.plc-optimization-copy {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--tm-sp-4);
}

.plc-optimization-copy article,
.plc-case-grid article {
  padding: var(--tm-sp-6);
  border: 1px solid var(--plc-line);
  border-radius: 18px;
  background: var(--plc-panel);
}

.plc-optimization-copy h3,
.plc-case-grid h3 {
  color: var(--plc-ink);
}

.plc-optimization-copy p,
.plc-case-grid p {
  color: var(--plc-muted);
}

.plc-impact {
  width: 100%;
  max-width: none;
  padding-right: max(40px, calc((100% - 1440px) / 2));
  padding-left: max(40px, calc((100% - 1440px) / 2));
  background: #e3e7ea;
}

.plc-impact-list {
  display: grid;
  border-top: 1px solid var(--plc-line);
}

.plc-impact-list article {
  min-height: 156px;
  display: grid;
  grid-template-columns: minmax(180px, 0.3fr) minmax(180px, 0.28fr) minmax(0, 1fr);
  align-items: center;
  gap: var(--tm-sp-6);
  border-bottom: 1px solid var(--plc-line);
}

.plc-impact-list span {
  color: var(--plc-muted);
  font-family: var(--tm-font-mono);
}

.plc-impact-list strong {
  color: var(--plc-ink);
  font-size: clamp(42px, 5vw, 76px);
  font-weight: 500;
  line-height: 1;
}

.plc-impact-list p {
  margin: 0;
  color: var(--plc-muted);
  font-size: 17px;
  line-height: 1.5;
}

.plc-case-grid article {
  min-height: 220px;
}

.plc-monitoring {
  width: 100%;
  max-width: none;
  padding-right: max(40px, calc((100% - 1440px) / 2));
  padding-left: max(40px, calc((100% - 1440px) / 2));
  background: var(--plc-dark);
  color: #f4f6f7;
}

.plc-monitoring .plc-section-title h2 {
  color: #f4f6f7;
}

.plc-monitor-shell {
  overflow: hidden;
  border-color: rgb(244 246 247 / 0.16);
  background: #111416;
  color: #f4f6f7;
  box-shadow: none;
}

.plc-monitor-top {
  min-height: 66px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--tm-sp-4);
  padding: 0 var(--tm-sp-4);
  border-bottom: 1px solid rgb(244 246 247 / 0.14);
}

.plc-monitor-top span {
  color: rgb(244 246 247 / 0.54);
}

.plc-monitor-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--tm-sp-3);
  padding: var(--tm-sp-4);
}

.plc-monitor-grid div {
  min-height: 118px;
  display: grid;
  align-content: space-between;
  padding: var(--tm-sp-3);
  border: 1px solid rgb(244 246 247 / 0.14);
  border-radius: var(--tm-radius-m);
  background: rgb(244 246 247 / 0.04);
}

.plc-monitor-grid span {
  color: rgb(244 246 247 / 0.54);
}

.plc-monitor-grid strong {
  color: #f4f6f7;
  font-family: var(--tm-font-mono);
  font-size: 24px;
  line-height: 1;
}

.plc-monitor-copy {
  align-self: center;
}

.plc-monitor-copy p {
  color: rgb(244 246 247 / 0.72);
}

.plc-monitor-copy .plc-button {
  margin-top: var(--tm-sp-6);
}

.plc-contact {
  align-items: start;
}

.plc-contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--tm-sp-4);
  margin-top: var(--tm-sp-8);
}

.plc-contact-links a,
.plc-footer a {
  color: var(--plc-blue);
  font-weight: 800;
  text-decoration: none;
}

.plc-contact-links a:hover,
.plc-contact-links a:focus-visible,
.plc-footer a:hover,
.plc-footer a:focus-visible {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.plc-form {
  display: grid;
  gap: var(--tm-sp-4);
  padding: var(--tm-sp-6);
}

.plc-form label {
  display: grid;
  gap: var(--tm-sp-2);
  color: var(--plc-muted);
  font-size: var(--tm-fs-body-s);
  font-weight: 800;
}

.plc-form input,
.plc-form textarea {
  width: 100%;
  min-height: 46px;
  padding: var(--tm-sp-3);
  border: 1px solid var(--plc-line);
  border-radius: 10px;
  background: #fff;
  color: var(--plc-ink);
  font: inherit;
  font-weight: 600;
  resize: vertical;
  transition:
    border-color 140ms ease,
    box-shadow 140ms ease;
}

.plc-form input:focus,
.plc-form textarea:focus {
  border-color: var(--plc-copper);
  box-shadow: 0 0 0 3px rgb(242 139 32 / 0.16);
}

.plc-form button {
  width: fit-content;
}

.plc-form p {
  margin: 0;
  color: var(--plc-muted);
  font-size: var(--tm-fs-body-s);
}

.plc-footer {
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--tm-sp-4);
  padding: var(--tm-sp-6) 0;
  border-top: 1px solid var(--plc-line);
  color: var(--plc-muted);
  font-size: var(--tm-fs-body-s);
}

@media (prefers-reduced-motion: reduce) {
  .plc-button,
  .plc-nav a,
  .plc-link,
  .plc-form input,
  .plc-form textarea {
    transition-duration: 1ms;
  }
}

@media (max-width: 1180px) {
  .plc-header,
  .plc-hero,
  .plc-release,
  .plc-section,
  .plc-footer {
    width: min(1440px, calc(100% - 48px));
  }

  .plc-header {
    grid-template-columns: auto minmax(0, 1fr) auto;
  }

  .plc-link {
    display: none;
  }

  .plc-nav {
    justify-content: flex-end;
  }

  .plc-hero {
    min-height: auto;
    grid-template-columns: 1fr;
    padding-top: 128px;
  }

  .plc-hero-visual,
  .plc-plant-scene {
    min-height: 520px;
  }

  .plc-cabinet {
    right: auto;
    left: 0;
  }

  .plc-problem-layout,
  .plc-optimization-layout,
  .plc-monitoring-layout,
  .plc-contact {
    grid-template-columns: 1fr;
  }

  .plc-step-grid,
  .plc-case-grid {
    grid-template-columns: 1fr;
  }

  .plc-step-grid article {
    min-height: 220px;
  }
}

@media (max-width: 820px) {
  .plc-header,
  .plc-hero,
  .plc-release,
  .plc-section,
  .plc-footer {
    width: min(1440px, calc(100% - 32px));
  }

  .plc-header {
    min-height: 112px;
    grid-template-columns: 1fr auto;
    align-content: center;
    gap: var(--tm-sp-3);
  }

  .plc-nav {
    grid-column: 1 / -1;
    grid-row: 2;
    justify-content: flex-start;
    overflow-x: auto;
  }

  .plc-header-cta {
    justify-self: end;
  }

  .plc-hero {
    padding-top: 150px;
    padding-bottom: 70px;
  }

  .plc-hero h1 {
    font-size: clamp(38px, 9vw, 58px);
  }

  .plc-hero-lead {
    max-width: 560px;
    margin-top: var(--tm-sp-6);
    font-size: 18px;
  }

  .plc-hero-facts {
    gap: var(--tm-sp-3);
    margin-top: var(--tm-sp-6);
  }

  .plc-hero-facts span {
    width: 100%;
  }

  .plc-release {
    align-items: flex-start;
    flex-direction: column;
    border-radius: 18px;
    padding: var(--tm-sp-4);
  }

  .plc-section {
    padding-top: 74px;
    padding-bottom: 74px;
  }

  .plc-section-title h2,
  .plc-contact-copy h2 {
    font-size: clamp(32px, 9vw, 48px);
  }

  .plc-optimization-copy,
  .plc-monitor-grid {
    grid-template-columns: 1fr;
  }

  .plc-impact-list article {
    grid-template-columns: 1fr;
    gap: var(--tm-sp-2);
    padding: 20px 0;
  }

  .plc-impact-list strong {
    font-size: 48px;
  }

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

@media (max-width: 560px) {
  .plc-header,
  .plc-hero,
  .plc-release,
  .plc-section,
  .plc-footer {
    width: auto;
    margin-right: 12px;
    margin-left: 12px;
  }

  .plc-header {
    position: absolute;
    grid-template-columns: 1fr;
    min-height: 116px;
  }

  .plc-nav {
    display: none;
  }

  .plc-header-cta {
    width: 100%;
    justify-self: stretch;
  }

  .plc-hero {
    padding-top: 150px;
    gap: var(--tm-sp-6);
  }

  .plc-line-label {
    gap: var(--tm-sp-2);
    margin-bottom: var(--tm-sp-4);
    white-space: nowrap;
  }

  .plc-line-label::before {
    width: 18px;
  }

  .plc-hero h1 {
    max-width: 360px;
    font-size: 36px;
    line-height: 1.04;
  }

  .plc-hero-lead {
    max-width: 330px;
    font-size: 16px;
  }

  .plc-actions,
  .plc-actions .plc-button,
  .plc-monitor-copy .plc-button,
  .plc-form button {
    width: 100%;
  }

  .plc-hero-visual,
  .plc-plant-scene {
    width: calc(100vw - 24px);
    max-width: calc(100vw - 24px);
    min-width: 0;
    min-height: 430px;
  }

  .plc-boiler {
    width: 86%;
    right: -8%;
    bottom: 70px;
  }

  .plc-cabinet {
    width: 210px;
    min-height: 300px;
    top: 28px;
    left: 0;
  }

  .plc-display-grid {
    gap: var(--tm-sp-2);
  }

  .plc-display-grid div {
    min-height: 64px;
  }

  .plc-display-grid strong {
    font-size: 18px;
  }

  .plc-signal-card,
  .plc-monitor-card {
    display: none;
  }

  .plc-release {
    margin-top: -28px;
  }

  .plc-problem-copy p,
  .plc-monitor-copy p {
    font-size: 17px;
  }

  .plc-tech-file pre {
    padding: var(--tm-sp-4);
    font-size: 12px;
  }

  .plc-mode-row {
    grid-template-columns: 0.8fr repeat(4, minmax(48px, 1fr));
    gap: 6px;
    overflow-x: auto;
    padding: 0 var(--tm-sp-2);
    font-size: 11px;
  }

  .plc-step-grid article,
  .plc-optimization-copy article,
  .plc-case-grid article,
  .plc-form {
    padding: var(--tm-sp-4);
  }
}