:root {
  color-scheme: light dark;
  --paper: light-dark(oklch(97% .006 230), oklch(17% .012 235));
  --surface: light-dark(oklch(100% 0 none), oklch(22% .014 235));
  --door-surface: light-dark(oklch(94% .018 215), oklch(25% .023 215));
  --ink: light-dark(oklch(25% .032 235), oklch(94% .009 225));
  --muted: light-dark(oklch(45% .025 230), oklch(74% .018 225));
  --line: light-dark(oklch(86% .012 230), oklch(36% .017 230));
  --accent: light-dark(oklch(38% .075 190), oklch(81% .09 182));
  --on-accent: light-dark(oklch(100% 0 none), oklch(19% .03 190));
  --selected: light-dark(oklch(89% .023 215), oklch(36% .025 215));
  --danger: light-dark(oklch(43% .17 26), oklch(80% .12 26));
  --warning: light-dark(oklch(43% .09 65), oklch(81% .09 75));
  --gutter: clamp(1rem, .7rem + 1.5vw, 1.75rem);
  --panel-padding: clamp(1.25rem, 1rem + 1vw, 2rem);
  --ease-out: cubic-bezier(.23, 1, .32, 1);
  font: 16px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
  overflow-wrap: break-word;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
}
[data-theme="light"] { color-scheme: light; }
[data-theme="dark"] { color-scheme: dark; }
*, *::before, *::after { box-sizing: border-box; min-width: 0; }
body { margin: 0; min-block-size: 100svh; }
button, input, select { font: inherit; }
button, summary, a { -webkit-tap-highlight-color: transparent; touch-action: manipulation; }
button, summary { cursor: pointer; }
button { color: inherit; }
button:disabled { cursor: not-allowed; opacity: .55; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; }
::selection { background: var(--selected); color: var(--ink); }
input { caret-color: var(--accent); }
[hidden] { display: none !important; }
.icon-definitions { position: absolute; inline-size: 0; block-size: 0; overflow: clip; }
.icon { inline-size: 1.35rem; block-size: 1.35rem; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; flex: none; }
.app-shell { max-inline-size: 42rem; margin-inline: auto; padding-inline: var(--gutter); padding-block-end: max(1.25rem, env(safe-area-inset-bottom)); }
.topbar { display: flex; align-items: center; justify-content: space-between; gap: .5rem; padding-block: max(1rem, env(safe-area-inset-top)) 1.25rem; }
.brand { display: inline-flex; align-items: center; color: var(--ink); text-decoration: none; font-size: 1.0625rem; font-weight: 700; letter-spacing: -.025em; min-block-size: 44px; white-space: nowrap; }
.brand:active { color: var(--accent); }
.topbar-actions, .theme-switch { display: flex; align-items: center; }
.topbar-actions { gap: .35rem; flex: none; }
.theme-switch { padding: 3px; border-radius: .75rem; background: var(--door-surface); }
.icon-button { display: inline-grid; place-items: center; flex: none; inline-size: 44px; block-size: 44px; padding: 0; border: 0; border-radius: .5rem; background: transparent; color: var(--muted); }
.icon-button[aria-pressed="true"] { background: var(--surface); color: var(--ink); }
.icon-button:active { background: var(--selected); color: var(--ink); }
summary { list-style: none; }
summary::-webkit-details-marker { display: none; }
.menu-panel { display: grid; gap: .5rem; margin-block-start: 1.5rem; }
.menu-panel button { display: flex; align-items: center; gap: 1rem; inline-size: 100%; min-block-size: 72px; border: 0; border-block-end: 1px solid var(--line); padding-inline: .25rem; padding-block: 1rem; background: transparent; font-size: 1.25rem; text-align: start; }
.menu-panel button:active { background: var(--selected); }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { text-wrap: balance; }
h1 { font-size: 1.875rem; font-weight: 700; line-height: 1.2; letter-spacing: -.035em; }
h2 { font-size: 1.125rem; font-weight: 650; line-height: 1.3; letter-spacing: -.02em; }
h3 { font-size: 1rem; font-weight: 650; line-height: 1.4; }
.secondary, .supporting, .form-note, .photo-note, time { color: var(--muted); }
.secondary { font-size: .875rem; }
.door-control { padding: var(--panel-padding); border-radius: 1rem; background: var(--door-surface); }
.door-heading { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.door-icon { inline-size: 2rem; block-size: 2rem; color: var(--accent); }
.access-state { display: flex; align-items: center; gap: .45rem; margin-block-start: .7rem; font-size: .8125rem; font-weight: 600; }
.status-dot { display: inline-block; inline-size: .4rem; block-size: .4rem; flex: none; border-radius: 50%; background: currentColor; }
.door-control[data-state="ready"] .access-state { color: var(--accent); }
.door-control[data-state="unavailable"] .access-state { color: var(--warning); }
.supporting { font-size: .9375rem; margin-block-start: .65rem; max-inline-size: 48ch; }
form { display: grid; gap: .5rem; margin-block-start: 1.25rem; }
label { font-size: .875rem; font-weight: 600; }
input, select { inline-size: 100%; min-block-size: 52px; font-size: max(16px, 1rem); padding-inline: .875rem; padding-block: .75rem; color: var(--ink); background: var(--surface); border: 1px solid var(--line); border-radius: .625rem; }
select:active { background: var(--selected); }
.account-section { margin-block-start: 1.5rem; }
.account-list { display: grid; margin-block-start: .5rem; }
.account-row { display: grid; gap: .25rem; padding-block: 1rem; border-block-end: 1px solid var(--line); }
.account-row p { font-size: .875rem; color: var(--muted); }
.account-row[data-ready="true"] p { color: var(--accent); }
.alert-controls { display: flex; flex-direction: column; gap: 1rem; }
.alert-controls > .text-button { align-self: start; }
.alert-shortcut { display: flex; flex-wrap: wrap; align-items: center; gap: .25rem 1rem; margin-block-end: 1rem; }
input[aria-invalid="true"] { border-color: var(--danger); }
.primary-button { display: inline-flex; align-items: center; justify-content: center; gap: .625rem; inline-size: 100%; min-block-size: 56px; margin-block-start: .35rem; padding-inline: 1rem; padding-block: .85rem; border: 0; border-radius: .625rem; background: var(--accent); color: var(--on-accent); font-weight: 650; }
.primary-button:active { background: color-mix(in oklch, var(--accent), var(--ink) 18%); }
.unlock-button { min-block-size: 64px; margin-block-start: 1.5rem; font-size: 1.0625rem; }
.form-note { margin-block-start: .5rem; font-size: .75rem; line-height: 1.5; }
.feedback { margin-block-start: 1rem; padding-block-start: .85rem; border-block-start: 1px solid var(--line); font-size: .9375rem; }
.feedback[data-tone="success"] { color: var(--accent); }
.feedback[data-tone="error"] { color: var(--danger); }
.feedback[data-tone="warning"] { color: var(--warning); }
.latest-visitor { margin-block-start: 1.75rem; }
.section-heading { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: .35rem 1rem; margin-block-end: 1rem; }
.visitor-photo-frame { display: grid; place-items: center; aspect-ratio: 4 / 3; border-radius: .75rem; overflow: clip; background: var(--door-surface); }
.visitor-photo-frame img { inline-size: 100%; block-size: 100%; max-block-size: 26rem; object-fit: contain; }
.visitor-photo-frame > p { padding: 1.25rem; font-size: .875rem; color: var(--muted); }
.visitor-summary { display: flex; align-items: start; gap: .75rem; padding-block: 1rem; }
.visitor-summary > div { flex: 1; }
.visitor-icon { color: var(--accent); margin-block-start: .1rem; }
.visitor-summary .secondary { margin-block-start: .15rem; }
time { font-size: .8125rem; font-variant-numeric: tabular-nums; white-space: nowrap; }
.photo-note { font-size: .8125rem; padding-inline-start: 2.1rem; }
.visitor-feed { overflow-anchor: none; }
.visitor-entry + .visitor-entry { border-block-start: 1px solid var(--line); padding-block-start: 1.5rem; margin-block-start: 1rem; }
.visitor-entry > time { display: block; margin-block-end: .75rem; }
.visitor-sentinel { display: flex; justify-content: center; padding-block: 1rem; }
.feed-status { padding-block: .5rem; color: var(--muted); font-size: .8125rem; text-align: center; }
.live-indicator { display: inline-flex; align-items: center; gap: .45rem; margin-block-end: 1rem; font-size: .8125rem; color: var(--muted); }
.live-indicator[data-ready="true"] { color: var(--accent); }
.service-error { margin-block-start: 1rem; color: var(--danger); font-size: .875rem; }
.text-button { min-block-size: 44px; border: 0; background: transparent; padding-inline: 0; color: inherit; text-decoration: underline; text-underline-offset: .2em; }
.text-button:active { color: var(--ink); }
dialog { inline-size: min(38rem, calc(100% - 2rem)); max-block-size: calc(100svh - 2rem); margin: auto; padding: var(--panel-padding); color: var(--ink); background: var(--surface); border: 1px solid var(--line); border-radius: 1rem; }
dialog::backdrop { background: oklch(10% .02 235 / .55); }
html:has(dialog[open]) { overflow: hidden; }
dialog { overscroll-behavior: contain; }
dialog.navigation-overlay { inline-size: 100%; max-inline-size: none; block-size: 100dvh; max-block-size: none; margin: 0; padding: 0; border: 0; border-radius: 0; background: var(--paper); }
.takeover-shell { max-inline-size: 42rem; margin-inline: auto; padding-inline: var(--gutter); padding-block-end: max(1.25rem, env(safe-area-inset-bottom)); }
.dialog-header { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-block-end: 1.25rem; }
.dialog-header h2 { font-size: 1.25rem; }
.dialog-header .secondary { margin-block-start: .25rem; }
.diagnostics { margin: 0; }
.diagnostics > div { padding-block: 1rem; border-block-start: 1px solid var(--line); }
dt { font-size: .8125rem; color: var(--muted); }
dd { margin-inline-start: 0; margin-block-start: .2rem; }
.demo-control, #setup { margin-block-start: 1.5rem; }
.secondary-button { min-block-size: 44px; padding-inline: 1rem; padding-block: .65rem; border: 1px solid var(--line); border-radius: .625rem; background: transparent; }
.secondary-button:active { background: var(--selected); }
.notification { display: flex; align-items: start; gap: .875rem; padding-block: 1rem; border-block-start: 1px solid var(--line); }
.notification > div { flex: 1; }
.notification img { flex: none; inline-size: 4.5rem; block-size: 4.5rem; object-fit: contain; border-radius: .5rem; background: var(--door-surface); }
.notification p, .notification time { margin-block-start: .25rem; font-size: .8125rem; }
.notification details { margin-block-start: .5rem; font-size: .75rem; color: var(--muted); }
.notification summary { min-block-size: 44px; display: flex; align-items: center; text-decoration: underline; text-underline-offset: .2em; }
.notification summary:active { color: var(--ink); }
.empty-state { color: var(--muted); padding-block: 1rem; }
@media (hover: hover) and (pointer: fine) {
  .icon-button:hover, .menu-panel button:hover, .secondary-button:hover { background: var(--selected); color: var(--ink); }
  .primary-button:hover { background: color-mix(in oklch, var(--accent), var(--ink) 12%); }
  .brand:hover, .text-button:hover, .notification summary:hover { color: var(--accent); }
}
@media (prefers-reduced-motion: no-preference) {
  button { transition: background-color 160ms var(--ease-out), color 160ms var(--ease-out); }
  .door-control { transition: background-color 180ms var(--ease-out); }
}