:root {
    --ink: #edf5fb;
    --ink-soft: #d5e3ed;
    --paper: #0a121a;
    --panel: #13212c;
    --panel-raised: #192b38;
    --field: #0e1b25;
    --line: #344b5c;
    --line-subtle: #263d4d;
    --input-border: #567082;
    --surface-hover: #1b3446;
    --surface-selected: #10425e;
    --sidebar: #0d1922;
    --notice-surface: #182b38;
    --notice-ink: #c7d9e6;
    --danger-surface: #3a232b;
    --danger-ink: #ffb7b1;
    --warning-surface: #3b301d;
    --warning-ink: #ffe0a6;
    --success-surface: #173a2c;
    --success-ink: #a9ecd0;
    --viewer-start: #1d3342;
    --viewer-end: #0d1922;
    --navy: #08375f;
    --blue: #55adf6;
    --aqua: #5cddd8;
    --green: #60d69c;
    --amber: #ffd06a;
    --red: #ff8b83;
    --muted: #afc0ce;
    --status-idle: #9eafbb;
    --focus: #83cbff;
    --shadow: 0 14px 35px rgba(0, 0, 0, .42);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--ink);
    background: var(--paper);
}

html[data-theme="light"] {
    --ink: #0b1725;
    --ink-soft: #203044;
    --paper: #f5f7fa;
    --panel: #ffffff;
    --panel-raised: #edf2f6;
    --field: #ffffff;
    --line: #dfe6ec;
    --line-subtle: #edf1f4;
    --input-border: #cbd6df;
    --surface-hover: #dfe8ef;
    --surface-selected: #eef7ff;
    --sidebar: #fbfcfd;
    --notice-surface: #eff4f8;
    --notice-ink: #526675;
    --danger-surface: #fff0f0;
    --danger-ink: #a13333;
    --warning-surface: #fff8e9;
    --warning-ink: #765200;
    --success-surface: #ecfaf3;
    --success-ink: #126344;
    --viewer-start: #f7fbff;
    --viewer-end: #d9e4ed;
    --navy: #073b71;
    --blue: #0874cb;
    --aqua: #10a8b2;
    --green: #21a36a;
    --amber: #df9c24;
    --red: #cf4a49;
    --muted: #6d7c8c;
    --status-idle: #aab6c2;
    --focus: #075fbe;
    --shadow: 0 14px 35px rgba(14, 36, 58, .08);
}

* { box-sizing: border-box; }
html { color-scheme: dark; -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
html[data-theme="light"] { color-scheme: light; }
body { margin: 0; min-width: 0; background: var(--paper); }
button, input { font: inherit; }
button { min-height: 44px; cursor: pointer; touch-action: manipulation; }
button:focus-visible, a:focus-visible, input:focus-visible, canvas:focus-visible, summary:focus-visible {
    outline: 3px solid var(--focus);
    outline-offset: 3px;
}
[hidden] { display: none !important; }

.site-shell { min-height: 100vh; }
.eyebrow { margin: 0 0 .45rem; color: var(--aqua); font-size: .69rem; font-weight: 800; letter-spacing: .15em; }

.wordmark { display: inline-flex; align-items: center; gap: .52rem; color: var(--ink); font-size: 1.08rem; font-weight: 900; letter-spacing: -.04em; text-decoration: none; }
.wordmark-mark { display: grid; place-items: center; width: 2.2rem; height: 2.2rem; color: #fff; background: var(--blue); font-size: .72rem; letter-spacing: -.06em; clip-path: polygon(0 0, 100% 0, 78% 100%, 0 100%); }

.login-layout { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(340px, .85fr); min-height: 100vh; min-height: 100svh; }
.brand-block { display: flex; flex-direction: column; justify-content: center; padding: clamp(3rem, 9vw, 8rem); color: #fff; background: linear-gradient(134deg, #041d39 0%, #073b71 51%, #075b98 100%); }
.brand-block .wordmark { margin-bottom: clamp(3rem, 7vw, 6rem); color: #fff; }
.brand-block .wordmark-mark { color: #073b71; background: #f7fbff; }
.brand-block h1 { max-width: 12ch; margin: 0; font-size: clamp(2.5rem, 5.2vw, 5.35rem); line-height: .98; letter-spacing: -.065em; }
.brand-block .eyebrow { margin-top: 0; color: #70e0d8; }
.intro { max-width: 44ch; margin: 1.7rem 0 0; color: #d8e8f7; font-size: 1.05rem; line-height: 1.65; }
.login-features { display: grid; gap: .78rem; margin: 2.7rem 0 0; padding: 0; color: #fff; font-size: .9rem; list-style: none; }
.login-features li { display: flex; align-items: center; gap: .75rem; }
.login-features li::before { width: .55rem; height: .55rem; border: 2px solid #70e0d8; border-radius: 50%; content: ""; }

.login-card { align-self: center; width: min(100% - 4rem, 410px); margin: auto; padding: 2.5rem; border: 1px solid var(--line); border-radius: 1.1rem; background: var(--panel); box-shadow: var(--shadow); }
.login-card h2 { margin: 0; font-size: 1.75rem; letter-spacing: -.045em; }
.login-card-header > p:last-child { margin: .5rem 0 2rem; color: var(--muted); font-size: .92rem; }
.login-card label { display: grid; gap: .5rem; margin: 1.15rem 0; color: var(--ink-soft); font-size: .83rem; font-weight: 700; }
.login-card input { width: 100%; min-height: 46px; padding: .75rem .9rem; border: 1px solid var(--input-border); border-radius: .55rem; color: var(--ink); background: var(--field); font-size: max(1rem, 16px); outline: none; }
.login-card input:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(8, 116, 203, .12); }
.button { border: 0; border-radius: .55rem; font-weight: 800; }
.theme-toggle { display: inline-flex; align-items: center; justify-content: center; gap: .45rem; min-height: 44px; padding: .5rem .72rem; border: 1px solid var(--line); border-radius: .55rem; color: var(--ink-soft); background: var(--panel-raised); font-size: .76rem; font-weight: 800; touch-action: manipulation; }
.theme-toggle:hover { border-color: var(--input-border); background: var(--surface-hover); }
.theme-toggle-icon { display: inline-grid; place-items: center; width: 1.05rem; height: 1.05rem; color: var(--amber); font-size: 1rem; line-height: 1; }
.theme-toggle-login { position: fixed; top: max(1rem, env(safe-area-inset-top)); right: max(1rem, env(safe-area-inset-right)); z-index: 2; border-color: rgba(255, 255, 255, .42); color: #f7fbff; background: rgba(4, 29, 57, .74); backdrop-filter: blur(8px); }
.theme-toggle-login:hover { border-color: #fff; background: rgba(4, 29, 57, .93); }
.button-primary { width: 100%; min-height: 48px; margin-top: .55rem; padding: .75rem 1rem; color: #fff; background: var(--blue); }
.button-primary:hover { background: #0664ae; }
.button-quiet { min-height: 44px; padding: .5rem .72rem; color: var(--ink-soft); background: var(--panel-raised); font-size: .78rem; }
.button-quiet:hover { background: var(--surface-hover); }
.login-footnote { margin: 1.5rem 0 0; color: var(--muted); font-size: .72rem; line-height: 1.5; }
.form-message { margin: .75rem 0 0; padding: .7rem .8rem; border-radius: .45rem; color: var(--danger-ink); background: var(--danger-surface); font-size: .82rem; }
.form-success { margin: .75rem 0 0; padding: .7rem .8rem; border-radius: .45rem; color: var(--success-ink); background: var(--success-surface); font-size: .82rem; line-height: 1.45; }

.dashboard { min-height: 100vh; min-height: 100svh; }
.dashboard { --topbar-height: 60px; --navigation-height: 60px; }
.dashboard .topbar { position: sticky; top: 0; z-index: 30; }
.dashboard .sidebar { position: sticky; top: var(--topbar-height); z-index: 20; align-self: start; height: calc(100dvh - var(--topbar-height)); overflow-y: auto; overscroll-behavior: contain; }
.dashboard .workspace, .dashboard #visual-diagnostics, .dashboard #machine-alarms, .dashboard #alarm-history, .dashboard #technical-signals { scroll-margin-top: calc(var(--navigation-height) + 12px); }
.planned-panel { display: grid; justify-items: center; align-content: center; gap: 16px; min-height: 55vh; padding: 40px 20px; text-align: center; }
.planned-panel h2 { margin: 0; font-size: clamp(2rem, 5vw, 3.5rem); }
.planned-panel .eyebrow { margin: 0; }
.planned-status { margin: 0; padding: 9px 18px; border: 1px solid var(--line); border-radius: 6px; background: var(--panel-raised); color: var(--muted); }
.planned-machine-icon { color: var(--blue); }
.topbar { display: flex; align-items: center; min-height: 4.8rem; padding: 0 1.8rem; border-bottom: 1px solid var(--line); background: var(--panel); }
.wordmark-compact { margin-right: 1.7rem; }
.topbar-context { display: grid; gap: .12rem; }
.topbar-context .eyebrow { margin: 0; font-size: .58rem; }
.topbar-context strong { font-size: .9rem; }
.topbar-actions { display: flex; align-items: center; gap: 1rem; min-width: 0; margin-left: auto; }
.connection-status { display: inline-flex; align-items: center; gap: .45rem; color: var(--muted); font-size: .76rem; font-weight: 700; }
.connection-status::before, .status-dot { width: .6rem; height: .6rem; border-radius: 50%; background: var(--status-idle); box-shadow: 0 0 0 3px rgba(158, 175, 187, .18); content: ""; }
.status-online::before, .status-online { background: var(--green); box-shadow: 0 0 0 3px rgba(33, 163, 106, .14); }
.status-offline::before, .status-offline { background: var(--red); box-shadow: 0 0 0 3px rgba(207, 74, 73, .14); }
.status-warning::before, .status-warning { background: var(--amber); box-shadow: 0 0 0 3px rgba(223, 156, 36, .16); }

.dashboard-content { display: grid; align-content: start; grid-template-columns: 245px minmax(0, 1fr); min-height: calc(100vh - 4.8rem); }
.sidebar { display: flex; flex-direction: column; gap: 1rem; padding: 1.6rem 1rem; border-right: 1px solid var(--line); background: var(--sidebar); }
.sidebar-label { margin: 0 .55rem; color: var(--muted); font-size: .65rem; font-weight: 800; letter-spacing: .13em; }
.machine-list { display: grid; gap: .45rem; }
.machine-button { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: .6rem; width: 100%; min-height: 48px; padding: .65rem .75rem; border: 1px solid transparent; border-radius: .65rem; color: var(--ink); background: transparent; text-align: left; }
.machine-button:hover, .machine-button.is-selected { border-color: var(--input-border); background: var(--surface-selected); }
.machine-button strong { overflow-wrap: anywhere; font-size: .83rem; }
.machine-button small { grid-column: 2 / -1; color: var(--muted); font-size: .68rem; }
.machine-button .status-dot { width: .48rem; height: .48rem; }
.machine-alarm { min-width: 1.2rem; padding: .17rem .38rem; border-radius: 2rem; color: var(--danger-ink); background: var(--danger-surface); font-size: .68rem; font-weight: 800; text-align: center; }
.sidebar-notice { display: flex; gap: .65rem; margin-top: auto; padding: .8rem; border-radius: .6rem; color: var(--notice-ink); background: var(--notice-surface); font-size: .7rem; line-height: 1.45; }
.sidebar-notice p { margin: 0; }
.notice-icon { color: var(--aqua); font-size: 1rem; font-weight: 900; }

.account-dialog { width: min(calc(100% - 2rem), 29rem); max-height: calc(100svh - 2rem); margin: auto; padding: 0; overflow: auto; overscroll-behavior: contain; border: 1px solid var(--line); border-radius: .95rem; color: var(--ink); background: var(--panel); box-shadow: 0 24px 70px rgba(0, 0, 0, .52); }
.account-dialog::backdrop { background: rgba(4, 20, 39, .58); }
.account-dialog form { margin: 0; }
.account-dialog-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; padding: 1.25rem 1.25rem 1rem; border-bottom: 1px solid var(--line); }
.account-dialog-header .eyebrow { margin-bottom: .3rem; font-size: .6rem; }
.account-dialog-header h2 { margin: 0; font-size: 1.35rem; letter-spacing: -.04em; }
.account-dialog-header p:last-child { margin: .45rem 0 0; color: var(--muted); font-size: .8rem; line-height: 1.45; }
.account-dialog-body { padding: .35rem 1.25rem 1.25rem; }
.account-dialog label { display: grid; gap: .5rem; margin: 1rem 0; color: var(--ink-soft); font-size: .83rem; font-weight: 700; }
.account-dialog input { width: 100%; min-height: 46px; padding: .75rem .9rem; border: 1px solid var(--input-border); border-radius: .55rem; color: var(--ink); background: var(--field); font-size: max(1rem, 16px); outline: none; }
.account-dialog input:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(8, 116, 203, .12); }
.field-help { margin: -.45rem 0 .9rem; color: var(--muted); font-size: .74rem; line-height: 1.4; }
.account-dialog-actions { display: flex; justify-content: flex-end; gap: .65rem; margin-top: 1.3rem; }
.account-dialog-actions .button-primary { width: auto; margin-top: 0; }

.workspace { width: 100%; max-width: 1680px; padding: clamp(1.4rem, 3vw, 2.6rem); }
.workspace-heading, .panel-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; }
.workspace-heading > :first-child, .panel-heading > :first-child { min-width: 0; }
.workspace-heading h2 { margin: 0; font-size: clamp(1.6rem, 2.4vw, 2.35rem); letter-spacing: -.055em; }
.workspace-heading p:last-child { margin: .45rem 0 0; color: var(--muted); font-size: .86rem; }
.header-status { display: flex; align-items: center; gap: .55rem; padding: .6rem .8rem; border: 1px solid var(--line); border-radius: 2rem; background: var(--panel-raised); font-size: .75rem; font-weight: 800; white-space: nowrap; }

.metric-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem; margin: 1.8rem 0; }
.metric-card { min-width: 0; min-height: 8.3rem; padding: 1.1rem; border: 1px solid var(--line); border-radius: .8rem; background: var(--panel); box-shadow: 0 5px 15px rgba(0, 0, 0, .14); }
.metric-card span { display: block; color: var(--muted); font-size: .7rem; font-weight: 800; text-transform: uppercase; letter-spacing: .06em; }
.metric-card strong { display: block; margin: 1rem 0 .38rem; font-size: 1.25rem; letter-spacing: -.04em; }
.metric-card small { color: var(--muted); font-size: .71rem; }

.priority-diagnostics { margin-top: 1.25rem; }
.priority-panel { border-color: var(--input-border); box-shadow: var(--shadow); }
.diagnostic-status { display: grid; gap: .25rem; margin: 0 1.25rem .9rem; padding: .8rem .9rem; border: 1px solid var(--line); border-left: 4px solid var(--status-idle); border-radius: .5rem; background: var(--panel-raised); color: var(--ink-soft); font-size: .78rem; line-height: 1.45; }
.diagnostic-status strong { color: var(--ink); font-size: .85rem; }
.diagnostic-status.is-valid { border-left-color: var(--green); background: var(--success-surface); color: var(--success-ink); }
.diagnostic-status.is-valid strong { color: var(--success-ink); }
.diagnostic-status.is-warning { border-left-color: var(--amber); background: var(--warning-surface); color: var(--warning-ink); }
.diagnostic-status.is-warning strong { color: var(--warning-ink); }
.diagnostic-status.is-offline { border-left-color: var(--red); background: var(--danger-surface); color: var(--danger-ink); }
.diagnostic-status.is-offline strong { color: var(--danger-ink); }
.safety-guidance { margin: .1rem 1.25rem 1rem; padding: .65rem .75rem; border-left: 3px solid var(--amber); border-radius: .3rem .5rem .5rem .3rem; color: var(--warning-ink); background: var(--warning-surface); font-size: .71rem; line-height: 1.45; }
.priority-links { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .5rem; padding: .75rem 1.25rem 1.1rem; border-top: 1px solid var(--line); }
.priority-links .panel-link { min-width: 0; margin: 0; padding: .55rem .65rem; border: 1px solid var(--line); border-radius: .5rem; color: var(--blue); background: var(--panel-raised); }
.priority-links .panel-link:hover { border-color: var(--input-border); background: var(--surface-hover); }
.operating-summary { margin-top: 1.25rem; }
.section-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 1rem; }
.section-heading h3 { margin: 0; font-size: 1rem; letter-spacing: -.025em; }
.section-heading .eyebrow { margin-bottom: .3rem; font-size: .6rem; }
.section-heading > p { max-width: 33rem; margin: 0; color: var(--muted); font-size: .73rem; line-height: 1.45; text-align: right; }
.operating-summary .metric-grid { margin: .85rem 0 0; }
.diagnostic-grid { display: grid; grid-template-columns: minmax(0, 1.65fr) minmax(285px, .75fr); gap: 1rem; }
.bottom-grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(320px, .85fr); gap: 1rem; margin-top: 1rem; }
.panel { overflow: hidden; border: 1px solid var(--line); border-radius: .9rem; background: var(--panel); box-shadow: 0 5px 15px rgba(0, 0, 0, .14); }
.panel-copy { margin: .4rem 0 0; color: var(--muted); font-size: .74rem; line-height: 1.45; }
.viewer-panel { margin-top: 1rem; }
.machine-navigation { display: flex; flex-wrap: wrap; gap: .5rem; margin: 1rem 0; }
.machine-navigation a { display: inline-flex; align-items: center; gap: .5rem; min-height: 44px; padding: .55rem .85rem; border: 1px solid var(--line); border-radius: .55rem; background: var(--panel); color: var(--ink); text-decoration: none; font-size: .9rem; font-weight: 750; }
.machine-navigation a:hover { border-color: var(--blue); }
.workspace > .diagnostic-status { margin: 0 0 1rem; }
.machine-workbench { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(320px, 1fr); align-items: start; gap: 1rem; }
.machine-workbench > .viewer-panel, .machine-workbench > .priority-diagnostics { min-width: 0; margin-top: 0; }
.machine-workbench .event-category.is-empty { grid-template-columns: 1fr; gap: .4rem; }
.machine-workbench .event-category-empty { text-align: left; }
.machine-workbench .priority-links { grid-template-columns: 1fr; }
.camera-presets { display: flex; flex-wrap: wrap; gap: .4rem; padding: 0 1.25rem .7rem; }
.camera-presets button, .machine-zone-controls button { min-height: 44px; padding: .5rem .7rem; border: 1px solid var(--line); border-radius: .45rem; background: var(--panel-raised); color: var(--ink-soft); font: inherit; font-size: .875rem; cursor: pointer; touch-action: manipulation; }
.camera-presets button:hover, .machine-zone-controls button:hover { border-color: var(--blue); }
.machine-zone-controls { display: grid; grid-template-columns: 1fr 1fr; gap: .45rem; padding: .9rem 1.1rem .5rem; }
.machine-zone-controls button { text-align: left; }
.machine-zone-controls button[aria-pressed="true"] { border-color: var(--blue); color: var(--ink); background: var(--surface-hover); }
.machine-zone-detail { padding: .8rem 1rem; color: var(--ink); background: var(--panel); }
.machine-zone-detail.is-callout { position: absolute; z-index: 3; left: 12px; top: 12px; width: min(285px, calc(100% - 24px)); padding: .65rem .75rem; border: 1px solid var(--input-border); border-radius: .55rem; box-shadow: var(--shadow); }
.zone-title { display: block; font-size: .9rem; }
.zone-location-hint { display: block; margin: .12rem 0 .4rem; font-size: .75rem; color: var(--muted); }
.zone-sensor { display: flex; align-items: center; justify-content: space-between; gap: .7rem; min-height: 30px; border-top: 1px solid var(--line-subtle); font-size: .875rem; }
.zone-sensor > :first-child { min-width: 0; }
button.zone-sensor { width: 100%; min-height: 44px; padding: .3rem .15rem; border: 0; border-top: 1px solid var(--line-subtle); border-radius: 0; background: transparent; color: inherit; font-family: inherit; text-align: left; cursor: pointer; }
button.zone-sensor[aria-pressed="true"] { box-shadow: inset 2px 0 var(--blue); background: var(--surface-hover); padding-left: .4rem; }
.sensor-indicator { display: inline-flex; align-items: center; flex-shrink: 0; gap: .4rem; color: var(--muted); font-size: .75rem; }
.sensor-indicator::before { content: ''; width: .55rem; height: .55rem; flex-shrink: 0; border: 1px solid currentColor; border-radius: 50%; background: var(--status-idle); }
.sensor-indicator--active { color: var(--green); }
.sensor-indicator--active::before { background: var(--green); box-shadow: 0 0 7px color-mix(in srgb, var(--green) 55%, transparent); }
.sensor-indicator--bypass { color: var(--amber); }
.sensor-indicator--bypass::before { background: var(--amber); }
.sensor-indicator--unknown { color: #ad91df; }
.sensor-indicator--unknown::before { background: transparent; border-style: dashed; }
.zone-calibration-note { margin: 0; padding: .5rem 1.1rem 1rem; color: var(--muted); font-size: .78rem; line-height: 1.5; }
.zone-overlay { position: absolute; z-index: 2; inset: 0; pointer-events: none; }
.zone-overlay svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.zone-overlay path { fill: none; stroke: var(--ink-soft); stroke-width: 1.25; vector-effect: non-scaling-stroke; }
.zone-pin { position: absolute; transform: translate(-50%, -50%); width: 44px; height: 44px; padding: 0; border: 0; border-radius: 50%; background: transparent; color: white; font: 800 .8rem system-ui; pointer-events: auto; cursor: pointer; isolation: isolate; }
.zone-pin::before { position: absolute; z-index: -1; inset: 9px; content: ''; border: 1px solid #d6e3ed; border-radius: 50%; background: #152331; }
.zone-pin[aria-pressed="true"]::before { border-width: 2px; background: #246186; }
.zone-overlay path.is-selected { stroke: var(--blue); stroke-width: 1.8; }
.zone-sensor[data-sensor-number]::before { content: attr(data-sensor-number); color: var(--ink-soft); font: 700 .75rem system-ui; flex: 0 0 1em; }
.zone-sensor[data-sensor-number] > :first-child { margin-right: auto; }
.zone-close { position: absolute; right: 0; top: 0; width: 44px; height: 44px; border: 0; background: transparent; color: var(--ink); font: 400 1.5rem system-ui; cursor: pointer; border-radius: .5rem; }
.zone-close:hover { background: var(--surface-hover); }
.zone-overlay .sensor-point::before { inset: 13px; }
.zone-overlay .sensor-point { font-size: .65rem; }
.is-callout .zone-title, .is-callout .zone-location-hint { padding-right: 27px; }
.viewer-workspace { display: grid; grid-template-columns: 190px minmax(0, 1fr); align-items: start; }
.machine-zone-picker { min-width: 0; align-self: stretch; border-right: 1px solid var(--line); background: var(--panel); }
.viewer-workspace .machine-zone-controls { grid-template-columns: 1fr; padding: .6rem; gap: .4rem; }
.viewer-workspace .machine-zone-controls button { display: grid; gap: 3px; padding: 12px; font-family: "Segoe UI", system-ui, sans-serif; line-height: 1.35; }
.zone-nav-name { font-size: 16px; font-weight: 600; letter-spacing: normal; white-space: nowrap; }
.zone-nav-location { font-size: 14px; color: var(--muted); text-transform: capitalize; }
.sensor-label { position: absolute; z-index: 2; display: grid; align-content: center; gap: 2px; height: 48px; min-height: 48px; padding: 5px 10px; border: 1px solid var(--input-border); border-radius: 6px; background: var(--panel); color: var(--ink); text-align: left; pointer-events: auto; font-family: "Segoe UI", system-ui, sans-serif; line-height: 1.25; box-shadow: 0 2px 8px #0002; }
.sensor-label-name { display: block; font-size: 14px; font-weight: 600; white-space: nowrap; letter-spacing: normal; }
.sensor-label-state { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--muted); }
.sensor-label-state::before { content: ''; width: 8px; height: 8px; border: 1px solid currentColor; border-radius: 50%; background: var(--status-idle); }
.sensor-label[data-state="unknown"] .sensor-label-state::before { background: transparent; border-style: dashed; }
.sensor-label[data-state="active"] .sensor-label-state::before { background: var(--green); }
.sensor-label[data-state="bypass"] .sensor-label-state::before { background: var(--amber); }
.sensor-label[aria-pressed="true"] { border-color: var(--blue); background: var(--surface-selected); }
.sensor-anchor { position: absolute; transform: translate(-50%, -50%); width: 32px; height: 32px; min-height: 32px; padding: 0; border: 0; background: transparent; pointer-events: auto; isolation: isolate; }
.sensor-anchor { font-size: 0; }
.sensor-anchor::before { content: ''; position: absolute; inset: 11px; border: 2px solid var(--ink); border-radius: 50%; background: var(--status-idle); }
.sensor-anchor[data-state="unknown"]::before { background: var(--panel); border-color: #b7a0db; }
.sensor-anchor[data-state="active"]::before { background: var(--green); }
.sensor-anchor[data-state="bypass"]::before { background: var(--amber); }
.sensor-anchor[aria-pressed="true"]::before { box-shadow: 0 0 0 4px #55adf655; }
#toggle-sensor-labels[aria-pressed="true"] { color: var(--blue); border-color: var(--blue); }
.sensor-mobile-legend { display: grid; grid-column: 1 / -1; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px; padding: 10px; border-top: 1px solid var(--line); }
.sensor-mobile-legend .sensor-label { position: relative; inset: auto !important; width: auto !important; height: auto; min-height: 64px; padding: 8px 10px 8px 30px; }
.sensor-mobile-legend .sensor-label::before { content: attr(data-number); position: absolute; left: 8px; top: 14px; color: var(--muted); font: 600 13px/1.4 system-ui; }
.sensor-mobile-legend .sensor-label-name { white-space: normal; }
.uses-mobile-labels .sensor-anchor { font-size: 0; color: var(--ink); width: 36px; height: 36px; min-height: 36px; }
.uses-mobile-labels .sensor-anchor::before { inset: 13px; border-width: 1px; z-index: -1; }
.uses-mobile-labels .sensor-anchor[aria-pressed="true"] { font: 600 12px/1 system-ui; }
.uses-mobile-labels .sensor-anchor[aria-pressed="true"]::before { inset: 6px; background: var(--panel); }
.sensor-mobile-focus { padding-right: 32px; }
.sensor-mobile-focus::after { content: '×'; position: absolute; right: 10px; top: 12px; font-size: 20px; }
.mobile-zone-select { display: none; }
.viewer-help-details { padding: .5rem .8rem; border-top: 1px solid var(--line); color: var(--muted); font-size: .75rem; }
.viewer-help-details summary { cursor: pointer; min-height: 24px; }
.viewer-help-details p { margin: .5rem 0; line-height: 1.5; }
@media(max-width: 800px) {
    .viewer-workspace { grid-template-columns: minmax(0, 1fr); }
    .machine-zone-picker { border-right: 0; border-bottom: 1px solid var(--line); }
    .viewer-workspace .machine-zone-controls { display: none; }
    .mobile-zone-select { display: flex; align-items: center; gap: .7rem; padding: .35rem .7rem; font-size: .8rem; color: var(--muted); }
    .mobile-zone-select select { min-width: 0; flex: 1; min-height: 44px; border: 1px solid var(--line); border-radius: .4rem; padding: .4rem; background: var(--panel-raised); color: var(--ink); font: inherit; }
}
.maintenance-panel > summary { cursor: pointer; min-height: 60px; list-style: none; }
.maintenance-panel > summary::after { content: '+'; color: var(--blue); font-size: 1.4rem; }
.maintenance-panel[open] > summary::after { content: '−'; }
.maintenance-panel > summary::-webkit-details-marker { display: none; }
#visual-diagnostics, #machine-alarms, #alarm-history, #technical-signals { scroll-margin-top: 5rem; }
.panel-heading { padding: 1.25rem 1.25rem .9rem; }
.panel-heading h3 { margin: 0; font-size: 1rem; letter-spacing: -.025em; }
.panel-heading .eyebrow { margin-bottom: .3rem; font-size: .6rem; }
.viewer-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: .5rem; }
.button:disabled { cursor: not-allowed; opacity: .55; }
.machine-viewer { position: relative; min-height: 0; height: 500px; overflow: hidden; background: radial-gradient(circle at 53% 38%, var(--viewer-start), var(--viewer-end)); }
.machine-viewer canvas { display: block; width: 100%; height: 100%; touch-action: none; }
.machine-viewer canvas:focus-visible { outline-offset: -4px; }
.viewer-loading { position: absolute; inset: 0; display: grid; place-items: center; color: var(--muted); font-size: .82rem; }
.viewer-help { margin: 0; padding: .7rem 1.25rem; border-top: 1px solid var(--line); color: var(--muted); font-size: .72rem; line-height: 1.45; }
.legend { display: flex; flex-wrap: wrap; gap: .8rem 1.2rem; padding: .85rem 1.25rem; border-top: 1px solid var(--line); color: var(--muted); font-size: .7rem; }
.legend span { display: inline-flex; align-items: center; gap: .35rem; }
.legend-dot { width: .48rem; height: .48rem; border-radius: 50%; background: var(--status-idle); }
.dot-ok { background: var(--green); } .dot-off { background: var(--status-idle); } .dot-warning { background: var(--amber); } .dot-alarm { background: var(--red); } .dot-stale { background: #ad91df; }

.count-badge { min-width: 1.75rem; padding: .25rem .5rem; border-radius: 2rem; color: var(--danger-ink); background: var(--danger-surface); font-size: .72rem; font-weight: 900; text-align: center; }
.alarm-list, .history-list { display: grid; gap: .6rem; padding: 0 1.25rem 1.1rem; }
.event-category { display: grid; gap: .5rem; }
.event-category + .event-category { padding-top: .85rem; border-top: 1px solid var(--line); }
.event-category-heading { display: flex; align-items: center; justify-content: space-between; gap: .7rem; }
.event-category-heading h4 { margin: 0; color: var(--ink); font-size: .78rem; letter-spacing: -.01em; }
.event-category-count { flex: 0 0 auto; padding: .18rem .42rem; border: 1px solid var(--line); border-radius: 2rem; color: var(--muted); background: var(--panel-raised); font-size: .62rem; font-weight: 800; white-space: nowrap; }
.event-category-empty { margin: 0; color: var(--muted); font-size: .74rem; line-height: 1.45; }
.event-category.is-empty { grid-template-columns: minmax(0, 1fr) minmax(11rem, 1.35fr); align-items: center; gap: .7rem; padding: .05rem 0; }
.event-category.is-empty .event-category-heading { min-width: 0; }
.event-category.is-empty .event-category-empty { text-align: right; }
.event-category-list { display: grid; gap: .55rem; }
.alarm-item { padding: .78rem; border-left: 3px solid var(--amber); border-radius: .28rem .5rem .5rem .28rem; background: var(--warning-surface); }
.alarm-item.is-critical { border-left-color: var(--red); background: var(--danger-surface); }
.alarm-item strong { display: block; font-size: .8rem; }
.alarm-item small { display: block; margin-top: .32rem; color: var(--muted); font-size: .68rem; }
.event-category--communication .alarm-item { border-left-color: #ad91df; background: var(--panel-raised); }
.event-category--bypass .alarm-item { border-left-color: var(--amber); }
.alarm-meaning { margin: .6rem 0 0; color: var(--ink-soft); font-size: .74rem; line-height: 1.45; }
.alarm-guidance { margin-top: .6rem; border-top: 1px solid var(--line-subtle); color: var(--ink-soft); font-size: .72rem; line-height: 1.45; }
.alarm-guidance summary { min-height: 44px; padding: .64rem 0; color: var(--blue); cursor: pointer; font-weight: 800; list-style: none; touch-action: manipulation; }
.alarm-guidance summary::-webkit-details-marker { display: none; }
.alarm-guidance summary::before { display: inline-block; width: .85rem; color: var(--aqua); content: "›"; font-size: 1.1rem; line-height: .8; transform: rotate(0deg); transition: transform .16s ease; }
.alarm-guidance[open] summary::before { transform: rotate(90deg); }
.alarm-guidance p { margin: 0 0 .55rem; }
.alarm-guidance-caveat { color: var(--muted); }
.alarm-related { min-height: 40px; margin: 0 0 .2rem; padding: .42rem .6rem; border: 1px solid var(--input-border); border-radius: .4rem; color: var(--blue); background: var(--panel-raised); font-size: .7rem; font-weight: 800; text-align: left; }
.alarm-related:hover { background: var(--surface-hover); }
.alarm-acknowledge { min-height: 44px; margin-top: .62rem; padding: .45rem .7rem; border: 1px solid var(--amber); border-radius: .38rem; color: var(--warning-ink); background: var(--panel-raised); font-size: .72rem; font-weight: 800; }
.alarm-acknowledge:hover { background: var(--surface-hover); }
.alarm-action-note { margin: .38rem 0 0; color: var(--muted); font-size: .65rem; line-height: 1.4; }
.empty-state { margin: .5rem 0; color: var(--muted); font-size: .78rem; }
.quality-notice { margin: .1rem 0 .35rem; padding: .65rem .72rem; border-left: 3px solid var(--amber); border-radius: .25rem .45rem .45rem .25rem; color: var(--warning-ink); background: var(--warning-surface); font-size: .71rem; line-height: 1.45; }
.panel-link { display: flex; align-items: center; justify-content: space-between; min-height: 44px; margin: 0 1.25rem 1.25rem; padding-top: .9rem; border-top: 1px solid var(--line); color: var(--blue); font-size: .75rem; font-weight: 800; text-decoration: none; touch-action: manipulation; }

.signal-tools { display: flex; align-items: end; gap: .65rem; padding: 0 1.25rem; }
.signal-filter-label { display: grid; flex: 1 1 15rem; gap: .35rem; color: var(--ink-soft); font-size: .72rem; font-weight: 800; }
.signal-filter-label input { width: 100%; min-height: 44px; padding: .62rem .75rem; border: 1px solid var(--input-border); border-radius: .5rem; color: var(--ink); background: var(--field); font-size: max(.88rem, 16px); outline: none; }
.signal-filter-label input:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(85, 173, 246, .28); }
.signal-filter-clear { flex: 0 0 auto; }
.signal-filter-result { min-height: 1.25rem; margin: .55rem 1.25rem .8rem; color: var(--muted); font-size: .7rem; line-height: 1.4; }
.signal-groups { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .7rem; padding: 0 1.25rem 1.25rem; }
.signal-group { overflow: hidden; border: 1px solid var(--line-subtle); border-radius: .6rem; background: var(--panel-raised); }
.signal-group-summary { display: flex; align-items: center; justify-content: space-between; gap: .65rem; min-height: 44px; padding: .65rem .75rem; color: var(--ink); cursor: pointer; list-style: none; touch-action: manipulation; }
.signal-group-summary::-webkit-details-marker { display: none; }
.signal-group-summary::before { flex: 0 0 auto; width: .65rem; color: var(--aqua); content: "›"; font-size: 1.1rem; line-height: 1; transform: rotate(0deg); transition: transform .16s ease; }
.signal-group[open] .signal-group-summary::before { transform: rotate(90deg); }
.signal-group-title { min-width: 0; margin-right: auto; color: var(--muted); font-size: .64rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.signal-group-count { flex: 0 0 auto; color: var(--muted); font-size: .66rem; white-space: nowrap; }
.signal-group-rows { padding: 0 .8rem .65rem; }
.signal-row { display: flex; align-items: center; justify-content: space-between; gap: .7rem; min-width: 0; padding: .43rem 0; border-top: 1px solid var(--line-subtle); font-size: .73rem; }
.signal-row > :first-child { min-width: 0; overflow-wrap: anywhere; }
.signal-group-rows .signal-row:first-child { border-top: 0; }
.signal-description { display: grid; min-width: 0; gap: .13rem; }
.signal-key { overflow-wrap: anywhere; color: var(--muted); font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace; font-size: .63rem; }
.signal-value { display: inline-flex; align-items: center; gap: .35rem; color: var(--muted); font-size: .66rem; font-weight: 800; white-space: nowrap; }
.signal-value::before { width: .42rem; height: .42rem; border-radius: 50%; background: var(--status-idle); content: ""; }
.signal-value.is-on { color: var(--green); }.signal-value.is-on::before { background: var(--green); }
.signal-value.is-alarm { color: var(--red); }.signal-value.is-alarm::before { background: var(--red); }
.signal-value.is-bypass { color: var(--amber); }.signal-value.is-bypass::before { background: var(--amber); }
.signal-freshness { color: var(--muted); font-size: .66rem; }
.signal-freshness.is-warning { color: var(--amber); font-weight: 800; }
.history-item { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: .7rem; padding: .7rem 0; border-top: 1px solid var(--line-subtle); }
.history-item:first-child { border-top: 0; }
.history-item strong { display: block; overflow-wrap: anywhere; font-size: .75rem; }
.history-item span, .history-item small { color: var(--muted); font-size: .66rem; }
.history-item time { color: var(--muted); font-size: .66rem; text-align: right; }
.signal-empty-state { grid-column: 1 / -1; }

@media (max-width: 1000px) {
    .login-layout { grid-template-columns: 1fr; }
    .brand-block { min-height: 42vh; padding: 3rem; }
    .login-card { margin: 2rem auto; }
    .dashboard-content { grid-template-columns: 1fr; }
    .sidebar { border-right: 0; border-bottom: 1px solid var(--line); }
    .machine-list { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
    .sidebar-notice { display: none; }
    .metric-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 690px) {
    /* On a phone, authentication is the primary first-screen task. Keep the
       product context below the form instead of forcing users to scroll. */
    .login-layout { display: flex; flex-direction: column; }
    .login-card { order: 1; margin-top: 0; margin-bottom: 0; }
    .brand-block { order: 2; min-height: auto; padding: 1.8rem max(1rem, env(safe-area-inset-right)) 2.25rem max(1rem, env(safe-area-inset-left)); }
    .brand-block .wordmark { margin-bottom: 1.5rem; }
    .brand-block h1 { max-width: 17ch; font-size: clamp(2rem, 9vw, 3rem); }
    .login-features { margin-top: 1.4rem; }
    .topbar { gap: .65rem; min-height: 4.5rem; padding: 0 max(1rem, env(safe-area-inset-right)) 0 max(1rem, env(safe-area-inset-left)); }
    .wordmark-compact { min-width: 0; margin-right: 0; }.topbar-context { display: none; }
    .workspace { padding: 1rem max(1rem, env(safe-area-inset-right)) 1.25rem max(1rem, env(safe-area-inset-left)); }
    .diagnostic-grid, .bottom-grid, .signal-groups { grid-template-columns: 1fr; }
    .workspace-heading { flex-direction: column; gap: .75rem; }.header-status { align-self: flex-start; }
    .machine-viewer { min-height: 0; height: clamp(24rem, 100vw, 30rem); }.topbar-actions { gap: .35rem; }
    .connection-status { display: none; }.login-card { width: min(100% - 2rem, 410px); padding: 1.65rem; }
    .panel-heading, .legend, .viewer-help, .alarm-list, .history-list, .signal-tools, .signal-groups, .priority-links { padding-left: 1rem; padding-right: 1rem; }
    .diagnostic-status, .safety-guidance { margin-left: 1rem; margin-right: 1rem; }
    .panel-link, .signal-filter-result { margin-left: 1rem; margin-right: 1rem; }
    .section-heading { align-items: flex-start; flex-direction: column; gap: .45rem; }.section-heading > p { text-align: left; }
    .priority-links { grid-template-columns: 1fr; }
}
@media (max-width: 1150px) {
    .machine-workbench { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
    .brand-block { min-height: auto; padding: 1.7rem max(1.25rem, env(safe-area-inset-right)) 2rem max(1.25rem, env(safe-area-inset-left)); }
    .brand-block .wordmark { margin-bottom: 2rem; }.brand-block h1 { font-size: clamp(2.25rem, 12vw, 3.2rem); }
    .intro { margin-top: 1.25rem; font-size: 1rem; }.login-features { margin-top: 1.75rem; }
    .login-card { width: 100%; margin: 0; padding: 1.5rem max(1.25rem, env(safe-area-inset-right)) 2rem max(1.25rem, env(safe-area-inset-left)); border-right: 0; border-bottom: 0; border-left: 0; border-radius: 0; box-shadow: none; }
    .sidebar { padding: 1rem max(1rem, env(safe-area-inset-right)) 1.1rem max(1rem, env(safe-area-inset-left)); }.machine-list, .metric-grid { grid-template-columns: 1fr; }
    .theme-toggle-dashboard { min-width: 44px; padding-right: .55rem; padding-left: .55rem; }.theme-toggle-dashboard [data-theme-toggle-label] { display: none; }
    .metric-grid { gap: .75rem; margin: 1rem 0; }.metric-card { min-height: 0; padding: 1rem; }
    .panel-heading { flex-wrap: wrap; }.viewer-actions { width: 100%; justify-content: flex-start; }.signal-tools { align-items: stretch; flex-direction: column; }.signal-filter-clear { width: 100%; }.history-item { grid-template-columns: 1fr; gap: .25rem; }.history-item time { text-align: left; }
    .event-category-heading { align-items: flex-start; }.event-category.is-empty { grid-template-columns: 1fr; gap: .22rem; }.event-category.is-empty .event-category-empty { text-align: left; }.alarm-related { width: 100%; }
    .account-dialog { width: calc(100% - 1rem); max-height: calc(100svh - 1rem); border-radius: .8rem; }
    .account-dialog-header, .account-dialog-body { padding-left: 1rem; padding-right: 1rem; }
    .account-dialog-actions { flex-direction: column-reverse; }.account-dialog-actions .button { width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
}

/* The first screen is the machine, not repeated headings and spacer rows. */
.topbar { min-height: 60px; padding: .4rem 1.2rem; }
.dashboard-content { grid-template-columns: 210px minmax(0, 1fr); }
.workspace { max-width: none; padding: 16px 20px 28px; }
.machine-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 10px; }
.workspace-heading { flex: 1; align-items: center; gap: 12px; min-width: 0; }
.workspace-heading .eyebrow { display: none; }
.workspace-heading h2 { font-size: clamp(1.1rem, 1.6vw, 1.5rem); letter-spacing: -.03em; }
.workspace-heading p:last-child { margin-top: 3px; font-size: .72rem; }
.machine-navigation { flex-shrink: 0; margin: 0; gap: 6px; }
.machine-navigation a { padding: .45rem .65rem; font-size: .8rem; }
.workspace > .diagnostic-status { margin-bottom: 10px; padding: .55rem .75rem; }
.machine-workbench { grid-template-columns: minmax(0, 1fr) minmax(300px, 360px); gap: 12px; }
.viewer-panel > .panel-heading { align-items: center; padding: 10px 12px; }
.viewer-panel > .panel-heading h3 { font: 600 18px/1.35 "Segoe UI", system-ui, sans-serif; letter-spacing: normal; }
.viewer-panel .viewer-actions button { font-family: "Segoe UI", system-ui, sans-serif; font-size: 14px; font-weight: 600; letter-spacing: normal; }
.viewer-panel .panel-heading .eyebrow { display: none; }
.viewer-panel .viewer-actions { width: auto; align-items: center; gap: 6px; }
.viewer-panel .camera-presets { padding: 0; gap: 6px; }
.viewer-panel .machine-viewer { height: var(--viewer-fit-height, 500px); min-height: 240px; }
.viewer-panel .machine-viewer:not(.uses-mobile-labels) { min-height: 350px; }
.connection-status.status-online, .connection-status.status-offline, .connection-status.status-warning { background: transparent; box-shadow: none; }
@media (max-width: 1700px) { .machine-workbench { grid-template-columns: 1fr; } }
@media (max-width: 1000px) {
    .dashboard-content { grid-template-columns: 1fr; }
    .dashboard .sidebar { height: auto; overflow-y: visible; }
    .sidebar { padding: 6px 12px; gap: 0; }
    .sidebar-label { display: none; }
    .machine-list { display: flex; overflow-x: auto; gap: 6px; }
    .machine-button { width: auto; flex: 0 0 auto; padding: 8px 10px; min-height: 44px; }
    .machine-button small { display: none; }
}
@media (max-width: 690px) {
    .topbar { min-height: 56px; padding: 6px 10px; }
    .workspace { padding: 8px 10px 24px; }
    .machine-toolbar { flex-wrap: wrap; gap: 6px; margin-bottom: 6px; }
    .workspace-heading { flex-direction: row; width: 100%; flex-basis: 100%; gap: 8px; }
    .workspace-heading p:last-child { display: none; }
    .header-status { padding: 5px 8px; font-size: .64rem; white-space: normal; }
    .machine-navigation { width: 100%; }
    .machine-navigation a { min-height: 44px; }
    .workspace > .diagnostic-status { font-size: .7rem; padding: 7px 9px; }
    .diagnostic-status strong { font-size: .76rem; }
    .viewer-panel > .panel-heading { padding: 6px 10px; gap: 4px; }
    .viewer-panel > .panel-heading > :first-child { display: none; }
    .viewer-panel .viewer-actions { width: 100%; flex-wrap: nowrap; justify-content: space-between; }
    .viewer-panel .viewer-actions button { padding: 6px 8px; font-size: 14px; }
    .viewer-panel .camera-presets { gap: 4px; flex-wrap: nowrap; }
}
@media (max-width: 390px) {
    .viewer-panel .viewer-actions { flex-wrap: wrap; justify-content: flex-start; }
    .viewer-panel .camera-presets { flex: 1 0 100%; }
    .viewer-panel .camera-presets button { flex: 1; }
}