:root {
  color-scheme: dark;
  --bg: #071016;
  --surface: #0e1a22;
  --surface-2: #142630;
  --surface-3: #19313c;
  --line: #29424f;
  --text: #edf5f6;
  --muted: #9bb0b8;
  --cyan: #57d1dd;
  --green: #4ed68a;
  --amber: #ffc25c;
  --red: #ff6868;
  --blue: #65a9ff;
  font-family: Inter, "Noto Sans TC", ui-sans-serif, system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; background: radial-gradient(circle at 75% -20%, #153744 0, var(--bg) 42%); color: var(--text); }
button, input, select { font: inherit; }
button { min-height: 48px; border: 1px solid #3a5866; border-radius: 10px; padding: .75rem 1rem; color: var(--text); background: #1d3440; cursor: pointer; font-weight: 750; transition: border-color .12s, background .12s, transform .12s; }
button:hover:not(:disabled), button:focus-visible { border-color: var(--cyan); background: #234653; transform: translateY(-1px); outline: 3px solid #57d1dd2c; }
button:active:not(:disabled), button[data-state="PRESSED"] { transform: translateY(1px); border-color: var(--cyan); background: #164655; }
button:disabled { cursor: not-allowed; opacity: .45; }
button.secondary { background: transparent; }
button.compact { min-height: 40px; padding: .5rem .75rem; }
button.start { border-color: #378663; background: #174b35; }
button.danger { border-color: #c34f57; background: #752b32; }
button.warning { border-color: #a77931; background: #5b421c; }
button[data-state="WAITING"], button[data-state="TIMEOUT"] { border-color: var(--amber); background: #533d19; }
button[data-state="SUCCESS"] { border-color: var(--green); background: #185035; }
button[data-state="FAILED"] { border-color: var(--red); background: #5a2228; }
[hidden] { display: none !important; }
h1, h2, h3, h4, p { margin-top: 0; }
h1 { margin-bottom: 0; font-size: 1.35rem; letter-spacing: .02em; }
h2 { margin-bottom: .35rem; }
h3 { margin-bottom: .45rem; font-size: 1.07rem; }
h4 { margin: 0 0 .4rem; }
.eyebrow { margin-bottom: .25rem; color: var(--cyan); font-size: .7rem; font-weight: 800; letter-spacing: .13em; }

.topbar { position: sticky; z-index: 5; top: 0; min-height: 84px; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 13px 22px; border-bottom: 1px solid var(--line); background: #081219ed; backdrop-filter: blur(14px); }
.brand, .topbar__actions { display: flex; align-items: center; gap: 12px; }
.brand__mark { display: grid; place-items: center; width: 45px; height: 45px; border: 1px solid #327487; border-radius: 12px; background: linear-gradient(145deg, #173c49, #102933); color: var(--cyan); font-weight: 900; }
.login-screen { min-height: calc(100vh - 84px); display: grid; place-items: center; padding: 24px; }
.login-card { width: min(430px, 100%); display: grid; gap: 16px; padding: 30px; border: 1px solid var(--line); border-radius: 16px; background: linear-gradient(145deg, var(--surface), #0b171e); box-shadow: 0 22px 60px #0009; }
.login-card p, .login-card label { color: var(--muted); }
.login-card label { display: grid; gap: 7px; font-size: .82rem; font-weight: 750; }
#login-feedback:not(:empty) { padding: 10px; border-left: 4px solid var(--red); background: #431c22; }

.app-shell { display: grid; grid-template-columns: 260px minmax(0, 1fr); min-height: calc(100vh - 84px); }
.sidebar { padding: 18px 14px; border-right: 1px solid var(--line); background: #09151cbd; }
.nav-group { margin-bottom: 20px; }
.nav-group h2 { margin: 0 10px 7px; color: #8199a3; font-size: .72rem; letter-spacing: .12em; }
.nav-group button { width: 100%; min-height: 41px; margin: 2px 0; padding: .55rem .8rem; border-color: transparent; background: transparent; text-align: left; font-weight: 650; }
.nav-group button span, .nav-status { display: block; }
.nav-status { margin-top: .2rem; color: var(--muted); font-size: .63rem; }
.nav-status[data-connectivity="online"] { color: var(--green); }
.nav-status[data-connectivity="offline"] { color: var(--red); }
.nav-status[data-connectivity="stale"] { color: var(--amber); }
.nav-group button.is-active { border-color: #387181; background: #173642; color: #c7f9ff; }
.aside-note, .panel p, .safety-note { color: var(--muted); font-size: .84rem; line-height: 1.6; }
.aside-note { margin: 12px 8px 0; }
.workspace { width: 100%; max-width: 1550px; min-width: 0; margin: 0 auto; padding: 24px; }
.workspace__heading, .panel__heading, .device-panel header, .diagnostic-card header { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; }
.feedback { display: flex; gap: 10px; margin: 14px 0; padding: 12px 14px; border: 1px solid var(--line); border-left: 5px solid #61727a; border-radius: 9px; background: #101d25; }
.feedback[data-state="PRESSED"] { border-left-color: var(--cyan); }
.feedback[data-state="WAITING"], .feedback[data-state="TIMEOUT"] { border-left-color: var(--amber); }
.feedback[data-state="SUCCESS"] { border-left-color: var(--green); }
.feedback[data-state="FAILED"] { border-left-color: var(--red); }
.alarm-audio-status { margin: 12px 0; padding: 13px 15px; border: 2px solid var(--red); border-radius: 9px; background: #5a2028; color: #fff; font-weight: 800; }
.view { min-width: 0; }
.panel { margin-top: 16px; padding: 19px; border: 1px solid var(--line); border-radius: 14px; background: linear-gradient(145deg, var(--surface), #0c171e); box-shadow: 0 12px 30px #0004; }

.summary-grid { display: grid; grid-template-columns: repeat(6, minmax(145px, 1fr)); gap: 12px; }
.summary-card { min-height: 105px; padding: 14px; border: 1px solid #294652; border-top: 3px solid #46727f; border-radius: 11px; background: var(--surface-2); }
.summary-card p { margin: 0; color: var(--muted); font-size: .75rem; }
.summary-card strong { display: block; margin: .65rem 0 .35rem; font-size: 1.08rem; }
.summary-card small { display: block; color: var(--muted); font-size: .72rem; line-height: 1.45; }
.summary-card--online, .summary-card--normal { border-top-color: var(--green); }
.summary-card--offline, .summary-card--alarm { border-top-color: var(--red); }
.summary-card--alarm strong { color: var(--red); }
.summary-card--normal strong { color: var(--green); }
.summary-card--stale { border-top-color: var(--amber); }
.compact-grid { grid-template-columns: repeat(3, minmax(180px, 1fr)); }
.control-actions { display: grid; grid-template-columns: repeat(4, minmax(155px, 1fr)); gap: 12px; }
.control-actions button { min-height: 82px; display: flex; align-items: center; justify-content: center; gap: 10px; font-size: .98rem; }
.control-section { border-left: 4px solid #315766; }
.alarm-operations { border-left-color: var(--red); }
.maintenance-section { border-left-color: var(--amber); }
.section-actions { display: grid; grid-template-columns: repeat(2, minmax(180px, 1fr)); gap: 12px; }
.section-actions.three-actions { grid-template-columns: repeat(3, minmax(160px, 1fr)); }
.process-status { display: grid; grid-template-columns: repeat(4, minmax(150px, 1fr)); gap: 10px; margin-bottom: 14px; }
.process-status > div { padding: 12px; border: 1px solid var(--line); border-radius: 9px; background: var(--surface-2); }
.process-status span, .process-status strong { display: block; }
.process-status span { margin-bottom: .35rem; color: var(--muted); font-size: .72rem; }
.button-icon { display: grid; place-items: center; width: 30px; height: 30px; border: 1px solid #ffffff3b; border-radius: 50%; }
.emergency { font-size: 1.08rem !important; box-shadow: inset 0 0 0 2px #ff73732c; }
.separated-actions { margin-top: 28px; padding-top: 15px; border-top: 1px dashed #785b2e; text-align: right; }
.safety-note { margin: 14px 0 0; padding: 11px 13px; border-radius: 8px; background: #352914; }
.safety-note b, .warning-copy { color: var(--amber); }

.setting-list, .stage-settings { display: grid; gap: 10px; }
.setting-row { display: grid; grid-template-columns: minmax(230px, 1.45fr) minmax(125px, .65fr) minmax(145px, .8fr) minmax(210px, 1.1fr) auto; gap: 12px; align-items: center; padding: 12px; border: 1px solid #29424f; border-radius: 10px; background: var(--surface-2); }
.setting-row__name strong, .setting-row__name small, .setting-row__name span, .reported span, .reported small, .sync > span, .sync small { display: block; }
.setting-row__name span, .setting-row label span, .reported span, .sync > span { margin-bottom: .35rem; color: var(--muted); font-size: .7rem; }
.setting-row__name small, .reported small, .sync small { margin-top: .32rem; color: var(--muted); font-size: .68rem; line-height: 1.45; }
input, select { width: 100%; min-height: 43px; padding: .55rem; border: 1px solid #3b5966; border-radius: 7px; background: #08151c; color: var(--text); }
.stage-settings { grid-template-columns: repeat(3, minmax(310px, 1fr)); }
.stage-card { min-width: 0; padding: 14px; border: 1px solid #31505d; border-radius: 11px; background: #101f28; }
.stage-card > p { font-size: .75rem; }
.setting-row--compact { grid-template-columns: 1fr 90px; }
.setting-row--compact .reported, .setting-row--compact .sync { grid-column: span 1; }
.setting-row--compact button { grid-column: 1 / -1; min-height: 40px; }
.readonly-tag { padding: .35rem .6rem; border: 1px solid #5a6d75; border-radius: 999px; color: var(--muted); font-size: .72rem; }

.device-grid { display: grid; grid-template-columns: repeat(3, minmax(260px, 1fr)); gap: 14px; }
.device-panel, .diagnostic-card { min-width: 0; padding: 16px; border: 1px solid #2c4a57; border-radius: 12px; background: var(--surface-2); }
.device-panel header p { margin-bottom: .2rem; font-weight: 850; }
.device-panel header small { color: var(--muted); }
.device-panel dl, .diagnostic-card dl { display: grid; gap: 8px; margin: 14px 0; }
.device-panel dl > div, .diagnostic-card dl > div { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 6px 12px; padding: 8px 0; border-bottom: 1px solid #2a424d; }
.device-panel dt, .diagnostic-card dt { color: var(--muted); font-size: .75rem; }
.device-panel dd, .diagnostic-card dd { margin: 0; font-weight: 730; text-align: right; }
.device-panel dl small, .diagnostic-card dl small { flex-basis: 100%; color: var(--muted); font-size: .68rem; text-align: right; }
.device-panel--alarm { border-color: var(--red); }
.time-display { margin: 18px 0 12px; font: 850 clamp(2.2rem, 5vw, 3.5rem) ui-monospace, monospace; letter-spacing: .04em; color: #c9fbff; }
.progress-label { display: flex; justify-content: space-between; gap: 10px; margin: 18px 0 8px; font-size: .8rem; }
progress { width: 100%; height: 16px; accent-color: var(--cyan); }
.card-actions { display: grid; gap: 8px; padding-top: 8px; border-top: 1px dashed #76592c; }
.card-actions button { width: 100%; }
.process-flow { display: flex; align-items: stretch; justify-content: center; gap: 8px; margin: 14px 0 20px; overflow-x: auto; }
.process-flow > span { min-width: 130px; padding: 11px; border: 1px solid #355663; border-radius: 9px; background: #17303b; text-align: center; font-size: .76rem; font-weight: 750; }
.process-flow > b { align-self: center; color: var(--cyan); }

.badge { display: inline-flex; align-items: center; gap: .38rem; padding: .32rem .58rem; border: 1px solid #52646c; border-radius: 999px; white-space: nowrap; font-size: .69rem; font-weight: 780; }
.badge small { padding-left: .25rem; border-left: 1px solid currentColor; opacity: .65; font-size: .58rem; }
.badge--online, .badge--synced, .badge--executed, .badge--applied { color: var(--green); border-color: #327955; background: #133925; }
.badge--offline, .badge--mismatch, .badge--failed, .badge--rejected { color: var(--red); border-color: #873d45; background: #421d22; }
.badge--stale, .badge--pending, .badge--unverified, .badge--timeout { color: var(--amber); border-color: #80602a; background: #392d18; }
.diagnostic-groups { display: grid; grid-template-columns: repeat(3, minmax(260px, 1fr)); gap: 12px; }
.diagnostic-card header h4 { margin: .2rem 0; }
.scenario-controls { display: grid; grid-template-columns: repeat(4, minmax(140px, 1fr)); gap: 10px; }
.scenario-timeline { display: grid; gap: 8px; margin: 16px 0 0; padding: 0; list-style: none; }
.scenario-timeline li { display: grid; grid-template-columns: minmax(190px, .45fr) 1fr; gap: 12px; padding: 10px 12px; border: 1px solid var(--line); border-left: 4px solid var(--cyan); border-radius: 8px; background: var(--surface-2); }
.scenario-timeline li span { color: var(--muted); font-size: .74rem; }
.scenario-timeline li[data-state="SUCCESS"] { border-left-color: var(--green); }
.scenario-timeline li[data-state="FAILED"] { border-left-color: var(--red); }
.scenario-timeline li[data-state="WAITING"], .scenario-timeline li[data-state="TIMEOUT"] { border-left-color: var(--amber); }
.scenario-detail { margin-top: 14px; padding: 14px; border: 1px solid #37606e; border-radius: 10px; background: #102630; }
.table-wrap { overflow: auto; }
table { width: 100%; min-width: 820px; border-collapse: collapse; }
th, td { padding: 10px 8px; border-top: 1px solid var(--line); text-align: left; vertical-align: middle; font-size: .8rem; }
td small { display: block; margin-top: .25rem; color: var(--muted); font-size: .65rem; }
.inline-select { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: .75rem; }
.inline-select select { width: 140px; }
.spinner { display: inline-block; width: 17px; height: 17px; border: 2px solid #ffffff55; border-top-color: #fff; border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.confirm-dialog { width: min(540px, calc(100% - 28px)); padding: 0; border: 1px solid #83632d; border-radius: 14px; background: #101d25; color: var(--text); box-shadow: 0 25px 80px #000c; }
.confirm-dialog::backdrop { background: #02070bd4; backdrop-filter: blur(4px); }
.confirm-dialog form { padding: 24px; }
.confirm-status { display: grid; grid-template-columns: 1fr 1fr; gap: 7px; margin: 14px 0; padding: 12px; border: 1px solid var(--line); border-radius: 9px; background: var(--surface-2); }
.confirm-status p { margin: 0; font-size: .78rem; }
.dialog-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 22px; }

@media (max-width: 1180px) {
  .summary-grid { grid-template-columns: repeat(3, 1fr); }
  .stage-settings, .diagnostic-groups { grid-template-columns: 1fr; }
  .stage-card { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
  .stage-card > h4, .stage-card > p { grid-column: 1 / -1; }
  .setting-row { grid-template-columns: minmax(200px, 1.2fr) repeat(2, minmax(130px, .8fr)); }
  .setting-row .sync { grid-column: 1 / span 2; }
  .process-status { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { position: static; border-right: 0; border-bottom: 1px solid var(--line); }
  #primary-navigation { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px 18px; }
  .nav-group { margin: 0; }
  .device-grid { grid-template-columns: 1fr; }
  .control-actions { grid-template-columns: repeat(2, 1fr); }
  .section-actions, .section-actions.three-actions { grid-template-columns: 1fr; }
  .scenario-controls { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 620px) {
  .topbar { padding: 10px 12px; }
  .brand__mark, #session-user { display: none; }
  h1 { font-size: 1.04rem; }
  .eyebrow { font-size: .61rem; }
  .workspace { padding: 13px; }
  .sidebar { padding: 12px; overflow-x: auto; }
  #primary-navigation { display: flex; min-width: 780px; gap: 8px; }
  .nav-group { min-width: 180px; }
  .summary-grid, .compact-grid, .control-actions, .scenario-controls, .process-status { grid-template-columns: 1fr; }
  .setting-row, .setting-row--compact { grid-template-columns: 1fr; }
  .setting-row .sync, .setting-row--compact button { grid-column: auto; }
  .stage-card { display: grid; grid-template-columns: 1fr; }
  .stage-card > h4, .stage-card > p { grid-column: auto; }
  .workspace__heading, .panel__heading { align-items: flex-start; }
  .process-flow { justify-content: flex-start; }
  .scenario-timeline li { grid-template-columns: 1fr; }
  .confirm-status { grid-template-columns: 1fr; }
  .dialog-actions button { flex: 1; }
}