:root {
  color-scheme: dark;
  --bg: #080b12;
  --surface: rgba(18, 24, 37, .76);
  --surface-strong: #151b28;
  --line: rgba(162, 183, 219, .14);
  --text: #f4f7fc;
  --muted: #98a5b8;
  --blue: #58a6ff;
  --blue-soft: rgba(88, 166, 255, .13);
  --orange: #f59e62;
  --purple: #a98bff;
  --green: #52d39a;
  --danger: #ff7383;
  --radius: 22px;
  font-family: "Segoe UI Variable", "Aptos", ui-sans-serif, system-ui, sans-serif;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
::selection { color: #06101e; background: var(--blue); }
* { scrollbar-color: rgba(88, 166, 255, .45) rgba(8, 11, 18, .7); scrollbar-width: thin; }
body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  color: var(--text);
  background:
    radial-gradient(circle at 82% 0%, rgba(42, 104, 180, .18), transparent 32rem),
    linear-gradient(180deg, #0b0f18 0%, var(--bg) 70%);
}
button, input { font: inherit; }
button { transition: transform .14s cubic-bezier(.2,0,0,1), border-color .14s cubic-bezier(.2,0,0,1), background-color .14s cubic-bezier(.2,0,0,1); }
button:active:not(:disabled) { transform: translateY(1px) scale(.99); }
button:focus-visible, [role="tab"]:focus-visible, .device-panel:focus-visible {
  outline: 3px solid rgba(88, 166, 255, .72);
  outline-offset: 3px;
}
.skip-link { position: fixed; top: -4rem; left: 1rem; z-index: 20; padding: .8rem 1rem; color: #08111e; background: var(--blue); border-radius: 12px; }
.skip-link:focus { top: 1rem; }
.auth-shell { min-height: 100vh; display: grid; place-items: center; padding: 28px 16px; }
.login-card {
  width: min(430px, 100%); padding: clamp(28px, 7vw, 44px); border: 1px solid var(--line);
  border-radius: var(--radius); background: rgba(18, 24, 37, .9);
  box-shadow: 0 30px 100px rgba(0, 0, 0, .42); backdrop-filter: blur(18px);
}
.brand-mark { display: grid; place-items: center; width: 46px; height: 46px; margin-bottom: 28px;
  border-radius: 14px; color: #06101e; background: var(--blue); font-weight: 850; font-size: 1.2rem; }
.login-card h1 { margin: 0; }
.login-copy { margin-top: 10px; color: var(--muted); line-height: 1.55; }
#login-form { display: grid; gap: 10px; margin-top: 30px; }
#login-form label, .reauth-fields label { color: var(--text); font-size: .86rem; font-weight: 680; }
input[type="password"] { width: 100%; min-height: 48px; padding: 0 14px; border: 1px solid rgba(162,183,219,.24);
  border-radius: 12px; outline: none; color: var(--text); background: rgba(5,8,14,.56); font-size: 16px; }
input[type="password"]:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(88,166,255,.16); }
.form-error { min-height: 1.3em; color: #ff9ba7; font-size: .8rem; line-height: 1.4; }
.login-submit { width: 100%; margin-top: 4px; }
.login-note { margin-top: 20px; color: var(--muted); font-size: .75rem; text-align: center; }
.view-enter { animation: reveal-view .36s cubic-bezier(.16,1,.3,1) both; }
@keyframes reveal-view { from { opacity: .01; transform: translateY(10px); filter: blur(5px); } to { opacity: 1; transform: none; filter: none; } }
.shell { width: min(1120px, calc(100% - 32px)); margin: 0 auto; padding: 34px 0 110px; }
.topbar, .section-heading, footer, .device-head, .confirm-actions { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.topbar-actions { display: flex; align-items: center; gap: 12px; }
.topbar { padding-bottom: 42px; }
h1, h2, p { margin: 0; }
h1 { margin-top: 6px; font-size: clamp(1.55rem, 4vw, 2.6rem); letter-spacing: -.045em; }
h2 { font-size: clamp(1.25rem, 3vw, 1.85rem); letter-spacing: -.035em; }
.eyebrow, .kicker, .metric-label { font: 700 .7rem/1.2 ui-monospace, SFMono-Regular, Consolas, monospace; letter-spacing: .13em; text-transform: uppercase; color: var(--muted); }
.cloud-state { display: flex; align-items: center; gap: 9px; color: var(--muted); font-size: .85rem; white-space: nowrap; }
.pulse { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); box-shadow: 0 0 0 5px rgba(152, 165, 184, .08); }
.cloud-state.online .pulse, .status-dot.online { background: var(--green); }
.cloud-state.error .pulse, .status-dot.offline { background: var(--danger); }
.overview, .device-panel {
  border: 1px solid var(--line);
  background: linear-gradient(150deg, rgba(25, 33, 49, .84), rgba(12, 16, 25, .72));
  box-shadow: 0 24px 90px rgba(0, 0, 0, .28), inset 0 1px rgba(255,255,255,.025);
  backdrop-filter: blur(18px);
  border-radius: var(--radius);
}
.overview { padding: 24px; }
.section-heading h2 { margin-top: 5px; }
.quiet-button, .primary-button, .action-button, .device-tab {
  min-height: 44px; border: 1px solid var(--line); border-radius: 14px; color: var(--text); cursor: pointer;
}
.primary-button:disabled, .quiet-button:disabled { opacity: .55; cursor: wait; }
.quiet-button { padding: 0 16px; background: rgba(255,255,255,.035); }
.quiet-button:hover { border-color: rgba(88,166,255,.38); background: var(--blue-soft); }
.device-tabs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 22px; }
.device-tab { padding: 16px; text-align: left; background: rgba(5,8,14,.42); }
.device-tab[aria-selected="true"] { border-color: rgba(88,166,255,.5); background: var(--blue-soft); box-shadow: inset 0 0 0 1px rgba(88,166,255,.12); }
.tab-title { display: flex; align-items: center; gap: 9px; font-weight: 720; }
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--muted); }
.tab-note { display: block; margin-top: 7px; color: var(--muted); font-size: .78rem; }
.device-panel { margin-top: 16px; padding: clamp(22px, 4vw, 38px); min-height: 410px; }
.device-head p { margin-top: 8px; color: var(--muted); }
.device-icon { display: grid; place-items: center; width: 54px; height: 54px; border: 1px solid rgba(88,166,255,.25); border-radius: 18px; background: var(--blue-soft); color: var(--blue); font-weight: 800; }
.metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin: 30px 0; }
.metric { min-height: 104px; padding: 17px; border: 1px solid var(--line); border-radius: 16px; background: rgba(5,8,14,.36); }
.metric-value { display: block; margin-top: 14px; font-size: 1.45rem; font-variant-numeric: tabular-nums; }
.actions-title { margin-bottom: 12px; color: var(--muted); font-size: .85rem; }
.action-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.action-button { padding: 14px; background: var(--surface-strong); text-align: left; }
.action-button:hover:not(:disabled) { transform: translateY(-1px); border-color: rgba(88,166,255,.46); }
.action-button strong, .action-button span { display: block; }
.action-button span { margin-top: 5px; color: var(--muted); font-size: .75rem; line-height: 1.35; }
.action-button:disabled { opacity: .45; cursor: not-allowed; }
.action-button.danger:not(:disabled) { border-color: rgba(255,115,131,.22); }
.empty-state { display: grid; align-content: center; min-height: 330px; text-align: center; }
.empty-state h2 { margin: 8px 0; }
.empty-state p:last-child { color: var(--muted); }
footer { padding: 22px 4px; color: var(--muted); font-size: .72rem; }
.confirm-tray {
  position: fixed; z-index: 10; left: 50%; bottom: 20px; width: min(760px, calc(100% - 28px)); padding: 20px;
  display: flex; align-items: center; justify-content: space-between; gap: 20px; border: 1px solid rgba(88,166,255,.34);
  border-radius: 20px; background: rgba(15,21,32,.96); box-shadow: 0 24px 90px rgba(0,0,0,.56); backdrop-filter: blur(22px);
  transform: translate(-50%, calc(100% + 42px)); opacity: 0; pointer-events: none;
  transition: transform .34s cubic-bezier(.16,1,.3,1), opacity .22s cubic-bezier(.4,0,1,1);
}
.confirm-tray.open { transform: translate(-50%, 0); opacity: 1; pointer-events: auto; }
.confirm-tray h2 { margin: 5px 0; }
.confirm-tray p:last-child { color: var(--muted); }
.reauth-fields { width: min(360px, 100%); margin-top: 16px; }
.reauth-fields input { margin-top: 8px; }
.reauth-fields .form-error { margin-top: 6px; }
.primary-button { padding: 0 17px; border-color: var(--blue); background: var(--blue); color: #06101e; font-weight: 780; }
.toast { position: fixed; right: 20px; top: 20px; z-index: 30; max-width: 340px; padding: 13px 16px; border: 1px solid var(--line); border-radius: 13px; background: #171e2c; opacity: 0; transform: translateY(-8px); pointer-events: none; transition: .2s ease; }
.toast.visible { opacity: 1; transform: none; }

@media (max-width: 720px) {
  .shell { width: min(100% - 20px, 680px); padding-top: 22px; }
  .topbar { align-items: flex-start; padding-bottom: 28px; }
  .device-tabs { grid-template-columns: 1fr; }
  .metrics { grid-template-columns: repeat(2, 1fr); }
  .action-grid { grid-template-columns: 1fr 1fr; }
  .confirm-tray { align-items: stretch; flex-direction: column; max-height: calc(100vh - 28px); overflow-y: auto; }
  .confirm-actions > * { flex: 1; }
  footer { align-items: flex-start; flex-direction: column; }
}
@media (max-width: 420px) {
  .topbar { flex-direction: column; }
  .topbar-actions { width: 100%; justify-content: space-between; }
  .section-heading { align-items: flex-end; }
  .action-grid { grid-template-columns: 1fr; }
  .metrics { grid-template-columns: 1fr 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .001ms !important; animation-duration: .001ms !important; animation-iteration-count: 1 !important; }
}