/* finesse · register=product · shell=web-install-workflow+responsive-device-cards · palette=cobalt-cool-slate · type=system-ui · motion=feedback-only */
:root {
  --font-ui: "Microsoft YaHei UI", "PingFang SC", "Segoe UI", system-ui, sans-serif;
  --page: #edf0f6;
  --surface: #fdfdff;
  --surface-soft: #f4f6fa;
  --surface-blue: #eef3ff;
  --surface-red: #fff5f4;
  --surface-warn: #fff5d7;
  --ink-1: #121a2b;
  --ink-2: #3a465c;
  --ink-3: #69768c;
  --accent: #2d5bd8;
  --accent-dark: #2049b7;
  --accent-deep: #173b84;
  --accent-bright: #4f7ee8;
  --accent-soft: rgba(45, 91, 216, .12);
  --accent-ring: rgba(45, 91, 216, .28);
  --on-accent: #f9fbff;
  --border: rgba(20, 32, 56, .10);
  --border-strong: rgba(20, 32, 56, .18);
  --border-on-dark: rgba(255, 255, 255, .24);
  --surface-on-dark: rgba(255, 255, 255, .09);
  --topbar-note: #cadbff;
  --up: #277452;
  --up-soft: #e8f5ee;
  --down: #b42318;
  --warn: #7b4f00;
  --offline: #7e899b;
  --overlay: rgba(14, 25, 43, .58);
  --toast: #1b2b43;
  --shadow: 0 1px 3px rgba(20, 34, 64, .06);
  --shadow-lg: 0 34px 80px -45px rgba(20, 34, 64, .46);
  --glow: 0 9px 24px rgba(45, 91, 216, .26);
  --r: 18px;
  --r-sm: 11px;
  --r-lg: 28px;
  --nav-h: 96px;
  --z-sticky: 20;
  --z-nav: 30;
}

* { box-sizing: border-box; }
html, body { overflow-x: clip; }
body { margin: 0; min-width: 320px; min-height: 100dvh; color: var(--ink-1); background: var(--page); font-family: var(--font-ui); font-synthesis: none; }
button, input { font: inherit; }
button { cursor: pointer; white-space: nowrap; }
button:focus-visible, input:focus-visible, summary:focus-visible, a:focus-visible { outline: 3px solid var(--accent-ring); outline-offset: 2px; }
[hidden] { display: none !important; }
h1, h2, h3, p { overflow-wrap: anywhere; min-width: 0; }
h1, h2, h3 { text-wrap: balance; }
p { text-wrap: pretty; }

.skip-link { position: fixed; z-index: 100; top: 8px; left: 8px; padding: 10px 14px; border-radius: var(--r-sm); color: var(--on-accent); background: var(--accent); transform: translateY(-160%); }
.skip-link:focus { transform: translateY(0); }
.auth-shell { min-height: 100dvh; display: grid; place-items: center; padding: 24px; background: var(--page); }
.auth-card { width: min(540px, 100%); padding: 34px; border: 1px solid var(--border); border-radius: var(--r-lg); background: var(--surface); box-shadow: var(--shadow-lg); }
.brand-mark { display: grid; place-items: center; width: 52px; height: 52px; margin-bottom: 22px; border-radius: 15px; color: var(--on-accent); background: var(--accent); font-size: 24px; font-weight: 800; box-shadow: var(--glow); }
.eyebrow { margin: 0 0 7px; color: var(--accent); font-size: 11px; font-weight: 800; letter-spacing: .13em; line-height: 1.08; }
.eyebrow.light { color: var(--topbar-note); }
h1 { margin: 0; font-size: 28px; line-height: 1.2; letter-spacing: -.025em; }
h2 { margin: 3px 0 0; font-size: 22px; letter-spacing: -.015em; }
h3 { margin: 0; }
.muted { color: var(--ink-3); line-height: 1.65; }
.stack { display: grid; gap: 17px; margin-top: 26px; }
.install-summary { padding-bottom: 2px; }
.install-summary p { margin: 8px 0 0; color: var(--ink-3); font-size: 13px; line-height: 1.6; }
label { display: grid; gap: 7px; color: var(--ink-2); font-size: 14px; font-weight: 650; }
.required { justify-self: start; padding: 2px 6px; border-radius: 999px; color: var(--down); background: var(--surface-red); font-size: 11px; font-weight: 700; }
input { width: 100%; min-height: 44px; border: 1px solid var(--border-strong); border-radius: var(--r-sm); padding: 9px 12px; color: var(--ink-1); background: var(--surface); outline: none; transition: border-color .15s, box-shadow .15s, background .15s; }
input:hover { border-color: var(--accent-bright); }
input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
input:read-only { color: var(--ink-2); background: var(--surface-soft); }
label small { color: var(--ink-3); font-weight: 400; line-height: 1.5; }
.button { min-height: 44px; display: inline-grid; place-items: center; padding: 9px 15px; border: 1px solid transparent; border-radius: var(--r-sm); font-weight: 700; line-height: 1.2; text-decoration: none; transition: transform .1s, background .15s, border-color .15s; }
.button:active { transform: translateY(1px); }
.button:disabled { opacity: .55; cursor: wait; }
.button.primary { color: var(--on-accent); background: var(--accent); }
.button.primary:hover { background: var(--accent-dark); }
.button.secondary { color: var(--accent-deep); border-color: var(--border-strong); background: var(--surface-blue); }
.button.ghost { color: var(--on-accent); border-color: var(--border-on-dark); background: var(--surface-on-dark); }
.button.danger-outline { color: var(--down); border-color: var(--border-strong); background: var(--surface-red); }
.button.text-danger { margin-left: auto; color: var(--down); border-color: transparent; background: transparent; }
.button.wide { width: 100%; }
.link-button { margin-top: 22px; }
.notice { padding: 12px 14px; border-radius: var(--r-sm); font-size: 13px; line-height: 1.5; }
.notice.info { color: var(--accent-deep); background: var(--surface-blue); }
.notice.warning { color: var(--warn); background: var(--surface-warn); }
.form-error { min-height: 21px; margin: 14px 0 0; color: var(--down); font-size: 13px; }
.environment-checks { display: grid; gap: 8px; }
.environment-row { display: grid; grid-template-columns: 28px minmax(0, 1fr); gap: 10px; align-items: center; padding: 10px 12px; border: 1px solid var(--border); border-radius: var(--r-sm); background: var(--surface-soft); }
.environment-row > span:last-child { min-width: 0; display: grid; gap: 2px; }
.environment-row strong { color: var(--ink-2); font-size: 13px; }
.environment-row small { color: var(--ink-3); font-size: 11px; line-height: 1.45; }
.environment-icon { display: grid; place-items: center; width: 26px; height: 26px; border-radius: 50%; color: var(--ink-3); background: var(--surface); font-weight: 800; }
.environment-row.is-ok .environment-icon { color: var(--up); background: var(--up-soft); }
.environment-row.is-error .environment-icon { color: var(--down); background: var(--surface-red); }
.environment-row.is-warning .environment-icon { color: var(--warn); background: var(--surface-warn); }
.pre-submit-check { display: grid; gap: 4px; padding: 13px 14px; border: 1px solid var(--border-strong); border-radius: var(--r-sm); background: var(--surface-soft); }
.pre-submit-check strong { font-size: 13px; }
.pre-submit-check span { color: var(--ink-3); font-size: 12px; }
.pre-submit-check.is-ready { border-color: var(--up); background: var(--up-soft); }
.pre-submit-check.is-ready span { color: var(--up); }

.topbar { min-height: var(--nav-h); position: sticky; z-index: var(--z-nav); top: 0; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 22px max(24px, calc((100vw - 1280px)/2)); color: var(--on-accent); background: var(--accent-deep); box-shadow: var(--shadow); }
.topbar h1 { font-size: 27px; }
.top-actions, .bulk-actions, .card-actions { min-width: 0; display: flex; flex-wrap: wrap; gap: 9px; }
.content { width: min(1280px, calc(100% - 38px)); margin: 24px auto 60px; }
.overview { display: grid; grid-template-columns: repeat(3, minmax(110px, 160px)) minmax(0, 1fr); gap: 12px; align-items: stretch; margin-bottom: 18px; }
.metric { display: grid; gap: 2px; padding: 18px 20px; border-radius: 14px; background: var(--surface); border: 1px solid var(--border); box-shadow: var(--shadow); }
.metric span { font-size: 27px; font-weight: 800; font-variant-numeric: tabular-nums; letter-spacing: -.02em; }
.metric small { color: var(--ink-3); }
.metric.online span { color: var(--up); }
.metric.offline span { color: var(--offline); }
.last-sync { display: flex; align-items: center; justify-content: flex-end; gap: 8px; color: var(--ink-3); font-size: 13px; }
.icon-button { display: grid; place-items: center; width: 44px; height: 44px; border: 1px solid var(--border); border-radius: 50%; color: var(--accent); background: var(--surface); font-size: 21px; }
.bulk-bar { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-bottom: 30px; padding: 14px 17px; border: 1px solid var(--border); border-radius: 13px; background: var(--surface); box-shadow: var(--shadow); }
.select-all { display: flex; grid: none; align-items: center; gap: 9px; white-space: nowrap; }
.select-all input, .device-select input { width: 18px; min-height: 18px; accent-color: var(--accent); }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin: 0 2px 17px; }
.section-heading .muted { max-width: 620px; margin: 0; text-align: right; font-size: 13px; }
.device-list { display: grid; gap: 18px; }
.device-card { overflow: hidden; border: 1px solid var(--border); border-radius: var(--r); background: var(--surface); box-shadow: var(--shadow); }
.device-header { display: flex; align-items: center; gap: 13px; padding: 18px 20px; border-bottom: 1px solid var(--border); background: var(--surface-soft); }
.device-select { display: grid; place-items: center; }
.device-title { flex: 1; min-width: 0; }
.device-title h3 { margin-top: 4px; font-size: 19px; }
.apply-status { display: block; margin-top: 4px; color: var(--ink-3); font-size: 11px; }
.apply-status.error { color: var(--down); }
.status-line { display: flex; align-items: center; gap: 7px; color: var(--ink-3); font-size: 12px; font-weight: 700; }
.status-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--offline); box-shadow: 0 0 0 4px var(--border); }
.device-card.is-online .status-dot { background: var(--up); box-shadow: 0 0 0 4px var(--up-soft); }
.device-card.is-online .status-text { color: var(--up); }
.revision-badge { padding: 5px 9px; border-radius: 999px; color: var(--ink-3); background: var(--page); font-size: 11px; font-weight: 700; }
.device-meta { display: grid; grid-template-columns: minmax(0, 2fr) minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1.2fr); gap: 1px; border-bottom: 1px solid var(--border); background: var(--border); }
.device-meta > div { min-width: 0; padding: 13px 20px; background: var(--surface); }
.device-meta small, .device-meta strong { display: block; }
.device-meta small { margin-bottom: 5px; color: var(--ink-3); font-size: 11px; }
.device-meta strong { overflow: hidden; color: var(--ink-2); font-size: 12px; font-weight: 600; text-overflow: ellipsis; white-space: nowrap; }
.device-form { padding: 20px; }
.form-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(180px, 210px) minmax(180px, 240px); gap: 14px; }
.form-grid .full { grid-column: 1 / -1; }
.schedule-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 14px; margin-top: 18px; }
.schedule-card { min-width: 0; margin: 0; padding: 15px; border: 1px solid var(--border); border-radius: var(--r-sm); background: var(--surface-soft); }
.schedule-card legend { padding: 0 7px; color: var(--ink-1); font-weight: 800; }
.switch-line { display: flex; grid: none; align-items: center; gap: 9px; margin-bottom: 13px; }
.switch-line input { width: 18px; min-height: 18px; accent-color: var(--accent); }
.day-options { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 5px; margin-top: 11px; }
.day-chip { display: grid; place-items: center; position: relative; }
.day-chip input { position: absolute; opacity: 0; pointer-events: none; }
.day-chip span { display: grid; place-items: center; width: 100%; min-height: 44px; border: 1px solid var(--border-strong); border-radius: 8px; color: var(--ink-3); background: var(--surface); font-size: 12px; }
.day-chip input:focus-visible + span { outline: 3px solid var(--accent-ring); outline-offset: 2px; }
.day-chip input:checked + span { color: var(--on-accent); border-color: var(--accent); background: var(--accent); }
.schedule-hint { margin: 9px 0 0; color: var(--ink-3); font-size: 11px; line-height: 1.45; }
.card-actions { margin-top: 19px; padding-top: 17px; border-top: 1px solid var(--border); }
.command-history { padding: 0 20px 17px; color: var(--ink-3); font-size: 12px; }
.command-history summary { cursor: pointer; font-weight: 700; }
.command-list { display: grid; gap: 7px; margin-top: 9px; }
.command-row { display: grid; grid-template-columns: 100px 90px minmax(0, 1fr); gap: 8px; padding: 8px 10px; border-radius: 8px; background: var(--surface-soft); }
.command-status.succeeded { color: var(--up); }
.command-status.failed { color: var(--down); }
.empty { padding: 60px 22px; border: 1px dashed var(--border-strong); border-radius: var(--r); text-align: center; background: var(--surface); box-shadow: var(--shadow); }
.empty-icon { display: grid; place-items: center; width: 54px; height: 54px; margin: 0 auto 16px; border-radius: 50%; color: var(--accent); background: var(--accent-soft); font-size: 31px; }
.empty p { color: var(--ink-3); }
.modal-backdrop { position: fixed; z-index: 50; inset: 0; display: grid; place-items: center; padding: 20px; background: var(--overlay); backdrop-filter: blur(5px); }
.modal { position: relative; width: min(600px, 100%); max-height: calc(100dvh - 40px); overflow-y: auto; padding: 28px; border: 1px solid var(--border); border-radius: var(--r); background: var(--surface); box-shadow: var(--shadow-lg); }
.modal-close { position: absolute; top: 12px; right: 14px; width: 44px; height: 44px; border: 0; border-radius: 50%; color: var(--ink-3); background: var(--surface-soft); font-size: 22px; }
.copy-row { display: grid; grid-template-columns: 76px minmax(0, 1fr) auto; gap: 8px; align-items: center; margin: 14px 0; }
.copy-label { color: var(--ink-3); font-size: 12px; font-weight: 700; }
.copy-row code { overflow-x: auto; padding: 12px; border: 1px solid var(--border-strong); border-radius: 8px; background: var(--surface-blue); white-space: nowrap; }
.toast { position: fixed; z-index: 80; left: 50%; bottom: max(24px, env(safe-area-inset-bottom)); max-width: calc(100% - 32px); padding: 11px 17px; border-radius: var(--r-sm); color: var(--on-accent); background: var(--toast); box-shadow: var(--shadow-lg); opacity: 0; transform: translate(-50%, 14px); pointer-events: none; transition: opacity .2s, transform .2s; }
.toast.show { opacity: 1; transform: translate(-50%, 0); }
.toast.error { background: var(--down); }

@media (max-width: 760px) {
  :root { --nav-h: 88px; }
  .auth-card { padding: 28px 22px; }
  .topbar { align-items: flex-start; padding: 19px 17px; }
  .topbar h1 { font-size: 22px; }
  .top-actions { justify-content: flex-end; }
  .top-actions .button { min-height: 44px; padding: 7px 10px; font-size: 12px; }
  .content { width: calc(100% - 24px); margin-top: 14px; }
  .overview { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .metric { padding: 13px 12px; text-align: center; }
  .metric span { font-size: 22px; }
  .last-sync { grid-column: 1 / -1; justify-content: center; }
  .bulk-bar, .section-heading { align-items: stretch; flex-direction: column; }
  .section-heading .muted { text-align: left; }
  .bulk-actions { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .bulk-actions .button:last-child { grid-column: 1 / -1; }
  .device-header { padding: 15px; }
  .device-meta { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .device-meta > div { padding: 11px 14px; }
  .device-form { padding: 15px; }
  .form-grid, .schedule-grid { grid-template-columns: minmax(0, 1fr); }
  .form-grid .full { grid-column: auto; }
  .card-actions { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .card-actions .save-device { grid-column: 1 / -1; }
  .button.text-danger { margin-left: 0; }
  .command-row { grid-template-columns: 82px 75px minmax(0, 1fr); }
  .copy-row { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 430px) {
  .auth-shell { padding: 12px; }
  .auth-card { padding: 24px 18px; border-radius: var(--r); }
  .topbar { position: relative; flex-direction: column; gap: 12px; }
  .top-actions { width: 100%; justify-content: stretch; }
  .top-actions .button { flex: 1; }
  .revision-badge { display: none; }
  .device-meta { grid-template-columns: minmax(0, 1fr); }
  .card-actions { grid-template-columns: minmax(0, 1fr); }
  .card-actions .save-device { grid-column: auto; }
  .command-row { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .command-row span:last-child { grid-column: 1 / -1; }
  .modal { padding: 24px 18px; }
}

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