/* HomeSync — "dusk panel": cool slate surfaces, filament-amber accent for light, IR-blue for remotes.
   Layout: single column, sticky header, bottom tab bar, bottom sheets for device detail. */
:root {
  --bg: #eef1f4;
  --surface: #ffffff;
  --surface-2: #e4e9ee;
  --line: #d3dae2;
  --fg: #16202b;
  --fg-dim: #5b6876;
  --accent: #c2700f;          /* filament amber */
  --accent-soft: #f6e3c8;
  --ir: #2f6fd6;              /* infrared / remote blue */
  --ok: #1f8f5c;
  --warn: #b5650d;
  --err: #c93c3c;
  --unconf: #7b55c7;          /* sent but not confirmed */
  --unknown: #7a8694;
  --shadow: 0 1px 2px rgba(20, 30, 45, .06), 0 4px 16px rgba(20, 30, 45, .06);
  --radius: 18px;
  --radius-sm: 12px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-display: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, sans-serif;
  --font-num: ui-rounded, "SF Pro Rounded", -apple-system, "Segoe UI", sans-serif;
  --tabbar-h: 62px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f141a; --surface: #182029; --surface-2: #212b36; --line: #2b3744;
    --fg: #e7edf3; --fg-dim: #94a2b2; --accent: #f2a541; --accent-soft: #3a2c18;
    --ir: #6ea2ff; --ok: #4cc38a; --warn: #f0a050; --err: #f06a6a; --unconf: #b392ff; --unknown: #8a97a6;
    --shadow: 0 1px 2px rgba(0,0,0,.3), 0 6px 20px rgba(0,0,0,.25);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0f141a; --surface: #182029; --surface-2: #212b36; --line: #2b3744;
  --fg: #e7edf3; --fg-dim: #94a2b2; --accent: #f2a541; --accent-soft: #3a2c18;
  --ir: #6ea2ff; --ok: #4cc38a; --warn: #f0a050; --err: #f06a6a; --unconf: #b392ff; --unknown: #8a97a6;
  --shadow: 0 1px 2px rgba(0,0,0,.3), 0 6px 20px rgba(0,0,0,.25);
  color-scheme: dark;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; min-height: 100%; }
body {
  background: var(--bg); color: var(--fg); font: 15px/1.4 var(--font);
  -webkit-font-smoothing: antialiased; overscroll-behavior-y: none;
}
body::before { content: ""; position: fixed; inset: 0 0 auto; height: env(safe-area-inset-top, 0px); background: var(--bg); z-index: 30; }
button, input, select { font: inherit; color: inherit; }
button { cursor: pointer; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
[hidden] { display: none !important; }
.num { font-family: var(--font-num); font-variant-numeric: tabular-nums; }

/* ---------- shell ---------- */
.app { max-width: 720px; margin: 0 auto; padding-bottom: calc(var(--tabbar-h) + env(safe-area-inset-bottom, 0px) + 24px); }
.topbar {
  position: sticky; top: env(safe-area-inset-top, 0px); z-index: 20; background: var(--bg);
  display: flex; align-items: center; gap: 10px;
  padding-block: 10px 8px; padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px));
}
.brand { font: 700 24px/1.1 var(--font-display); letter-spacing: -.02em; flex: 1; min-width: 0; }
.brand small { display: block; font: 500 12px/1.3 var(--font); color: var(--fg-dim); letter-spacing: 0; margin-top: 2px; }
.icon-btn { width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--line); background: var(--surface); display: grid; place-items: center; }
.icon-btn svg { width: 20px; height: 20px; }
.icon-btn.spin svg { animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.conn { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 600; padding: 6px 10px; border-radius: 99px; background: var(--surface); border: 1px solid var(--line); white-space: nowrap; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--unknown); flex: none; }
.dot.online { background: var(--ok); } .dot.offline { background: var(--err); } .dot.connecting { background: var(--warn); animation: pulse 1.2s infinite; } .dot.unknown { background: var(--unknown); }
@keyframes pulse { 50% { opacity: .35; } }

.view { padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); display: grid; gap: 18px; }
.banner { border-radius: var(--radius-sm); padding: 10px 12px; font-size: 13px; display: flex; gap: 10px; align-items: flex-start; border: 1px solid var(--line); background: var(--surface); }
.banner b { font-weight: 700; }
.banner.demo { background: var(--accent-soft); border-color: transparent; }
.banner.err { border-color: var(--err); }
.banner.warn { border-color: var(--warn); }
.banner .grow { flex: 1; min-width: 0; }
.banner button { border: 0; background: transparent; color: var(--accent); font-weight: 700; padding: 0; }

.section-h { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; margin: 0; }
.section-h h2 { font: 700 18px/1.2 var(--font-display); margin: 0; letter-spacing: -.01em; }
.section-h span { font-size: 12px; color: var(--fg-dim); }

/* summary strip */
.summary { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.sum { background: var(--surface); border-radius: var(--radius-sm); padding: 10px; box-shadow: var(--shadow); min-width: 0; }
.sum .n { font: 700 22px/1 var(--font-num); font-variant-numeric: tabular-nums; }
.sum .l { font-size: 11px; color: var(--fg-dim); margin-top: 4px; text-transform: uppercase; letter-spacing: .06em; }

/* search + chips */
.search { display: flex; align-items: center; gap: 8px; background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 0 12px; }
.search input { border: 0; background: transparent; padding: 11px 0; flex: 1; min-width: 0; outline: none; font-size: 16px; }
.search svg { width: 18px; height: 18px; color: var(--fg-dim); }
.chips { display: flex; gap: 8px; overflow-x: auto; scrollbar-width: none; margin: 0 -16px; padding: 0 16px; }
.chips::-webkit-scrollbar { display: none; }
.chip { flex: none; border: 1px solid var(--line); background: var(--surface); padding: 7px 12px; border-radius: 99px; font-size: 13px; font-weight: 600; color: var(--fg-dim); }
.chip[aria-pressed="true"] { background: var(--fg); color: var(--bg); border-color: var(--fg); }

/* device grid */
.grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
@media (min-width: 560px) { .grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.card {
  position: relative; background: var(--surface); border-radius: var(--radius); padding: 12px; box-shadow: var(--shadow);
  display: grid; gap: 10px; text-align: left; border: 1px solid transparent; min-height: 132px; align-content: space-between;
}
.card.is-on { border-color: color-mix(in srgb, var(--accent) 55%, transparent); }
.card.is-on .ico { background: var(--accent); color: #fff; }
.card.remote .ico { color: var(--ir); }
.card.blocked { opacity: .78; }
.card-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 8px; }
.ico { width: 40px; height: 40px; border-radius: 12px; background: var(--surface-2); display: grid; place-items: center; color: var(--fg-dim); flex: none; }
.ico svg { width: 22px; height: 22px; }
.card .name { font-weight: 650; font-size: 14px; line-height: 1.25; overflow-wrap: anywhere; }
.card .meta { font-size: 12px; color: var(--fg-dim); display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.card .open { position: absolute; inset: 0; border: 0; background: transparent; border-radius: var(--radius); }
.card .toggle { position: relative; z-index: 1; }
.tag { font-size: 10px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; padding: 2px 6px; border-radius: 6px; background: var(--surface-2); color: var(--fg-dim); }
.tag.demo { background: var(--accent-soft); color: var(--accent); }
.tag.blocked { background: transparent; border: 1px dashed var(--unknown); }
.fav { position: relative; z-index: 1; border: 0; background: transparent; color: var(--fg-dim); padding: 4px; }
.fav[aria-pressed="true"] { color: var(--accent); }
.fav svg { width: 18px; height: 18px; }

/* toggle switch */
.toggle { width: 50px; height: 30px; border-radius: 99px; border: 0; background: var(--surface-2); position: relative; flex: none; transition: background .2s; }
.toggle::after { content: ""; position: absolute; top: 3px; left: 3px; width: 24px; height: 24px; border-radius: 50%; background: #fff; box-shadow: 0 1px 3px rgba(0,0,0,.25); transition: transform .2s; }
.toggle[aria-checked="true"] { background: var(--accent); }
.toggle[aria-checked="true"]::after { transform: translateX(20px); }
.toggle:disabled { opacity: .45; }
.toggle.busy::after { animation: pulse 1s infinite; }

.empty { text-align: center; color: var(--fg-dim); padding: 28px 12px; background: var(--surface); border-radius: var(--radius); font-size: 14px; }
.empty b { color: var(--fg); display: block; font-size: 15px; margin-bottom: 4px; }

/* rooms */
.room-block { display: grid; gap: 10px; }

/* buttons */
.btn { border: 0; border-radius: 12px; padding: 12px 16px; font-weight: 650; background: var(--surface-2); min-height: 44px; }
.btn.primary { background: var(--accent); color: #fff; }
.btn.danger { background: var(--err); color: #fff; }
.btn.ghost { background: transparent; border: 1px solid var(--line); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn-row { display: flex; gap: 8px; flex-wrap: wrap; }
.btn-row .btn { flex: 1 1 auto; }

/* panels / lists */
.panel { background: var(--surface); border-radius: var(--radius); padding: 14px; box-shadow: var(--shadow); display: grid; gap: 12px; min-width: 0; }
.panel h3 { margin: 0; font: 700 16px/1.25 var(--font-display); }
.panel p { margin: 0; color: var(--fg-dim); font-size: 13px; }
.kv { display: grid; grid-template-columns: auto 1fr; gap: 6px 12px; font-size: 13px; }
.kv dt { color: var(--fg-dim); } .kv dd { margin: 0; text-align: right; overflow-wrap: anywhere; }
.steps { margin: 0; padding-left: 20px; display: grid; gap: 6px; font-size: 13px; color: var(--fg-dim); }
.steps b, .steps code { color: var(--fg); }
code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 12px; background: var(--surface-2); padding: 1px 5px; border-radius: 5px; overflow-wrap: anywhere; }
.pill { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 700; padding: 3px 9px; border-radius: 99px; background: var(--surface-2); white-space: nowrap; }
.pill.ok { color: var(--ok); } .pill.err { color: var(--err); } .pill.warn { color: var(--warn); } .pill.unk { color: var(--unknown); }
.req { display: flex; flex-wrap: wrap; gap: 6px; }
.req span { font-size: 11px; padding: 3px 7px; border-radius: 6px; font-family: ui-monospace, Menlo, monospace; background: var(--surface-2); }
.req span.yes { color: var(--ok); } .req span.no { color: var(--err); }
.table-wrap { overflow-x: auto; margin: 0 -14px; padding: 0 14px; }
table { border-collapse: collapse; font-size: 12px; width: 100%; min-width: 560px; }
th, td { text-align: left; padding: 7px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--fg-dim); font-weight: 600; font-size: 11px; text-transform: uppercase; letter-spacing: .05em; }

/* forms */
.field { display: grid; gap: 6px; font-size: 13px; }
.field label { color: var(--fg-dim); font-weight: 600; }
.field input, .field select { border: 1px solid var(--line); background: var(--surface); border-radius: 10px; padding: 11px 12px; font-size: 16px; width: 100%; }
.seg { display: flex; background: var(--surface-2); border-radius: 12px; padding: 3px; gap: 3px; }
.seg button { flex: 1; border: 0; background: transparent; padding: 9px 4px; border-radius: 9px; font-size: 13px; font-weight: 600; color: var(--fg-dim); min-width: 0; }
.seg button[aria-pressed="true"] { background: var(--surface); color: var(--fg); box-shadow: var(--shadow); }

/* sliders */
.slider { display: grid; gap: 6px; }
.slider .lab { display: flex; justify-content: space-between; font-size: 13px; color: var(--fg-dim); font-weight: 600; }
input[type="range"] { -webkit-appearance: none; appearance: none; width: 100%; height: 36px; border-radius: 12px; background: var(--surface-2); outline: none; margin: 0; }
input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none; width: 30px; height: 30px; border-radius: 50%; background: #fff; border: 1px solid rgba(0,0,0,.15); box-shadow: 0 2px 6px rgba(0,0,0,.25); }
input[type="range"]::-moz-range-thumb { width: 30px; height: 30px; border-radius: 50%; background: #fff; border: 1px solid rgba(0,0,0,.15); }
input[type="range"].bright { background: linear-gradient(90deg, #3a3326, #ffd58a); }
input[type="range"].ct { background: linear-gradient(90deg, #ffb35c, #fff3e0 50%, #cfe3ff); }
input[type="range"].hue { background: linear-gradient(90deg, red, #ff0, lime, cyan, blue, #f0f, red); }
input[type="range"].sat { background: linear-gradient(90deg, #fff, var(--sat-color, red)); }
input[type="range"]:disabled { opacity: .45; }
.swatches { display: flex; gap: 8px; flex-wrap: wrap; }
.swatch { width: 34px; height: 34px; border-radius: 50%; border: 2px solid var(--surface); box-shadow: 0 0 0 1px var(--line); }

/* AC */
.ac-temp { display: flex; align-items: center; justify-content: center; gap: 22px; }
.ac-temp .t { font: 600 56px/1 var(--font-num); font-variant-numeric: tabular-nums; min-width: 3ch; text-align: center; }
.ac-temp .t sup { font-size: 20px; color: var(--fg-dim); }
.round { width: 52px; height: 52px; border-radius: 50%; border: 1px solid var(--line); background: var(--surface-2); font-size: 26px; line-height: 1; }

/* IR keypad */
.keys { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
.key { border: 1px solid var(--line); background: var(--surface-2); border-radius: 14px; padding: 12px 6px; font-size: 13px; font-weight: 600; min-height: 48px; overflow-wrap: anywhere; }
.key.power { color: var(--err); }
.key:active { background: var(--ir); color: #fff; }

/* lock */
.lock-state { display: grid; justify-items: center; gap: 6px; padding: 8px 0; text-align: center; }
.lock-state .big { width: 84px; height: 84px; border-radius: 26px; display: grid; place-items: center; background: var(--surface-2); }
.lock-state .big svg { width: 44px; height: 44px; }
.lock-state.locked .big { color: var(--ok); }
.lock-state.unlocked .big { color: var(--warn); }
.lock-state.unknown .big { color: var(--unknown); }
.lock-state .word { font: 800 20px/1 var(--font-display); letter-spacing: .08em; }

/* camera */
.cam-frame { aspect-ratio: 16 / 9; max-width: 100%; border-radius: var(--radius-sm); background: repeating-linear-gradient(135deg, var(--surface-2) 0 10px, var(--surface) 10px 20px); display: grid; place-items: center; text-align: center; padding: 16px; color: var(--fg-dim); font-size: 13px; }

/* sheet */
.scrim { position: fixed; inset: 0; background: rgba(5, 10, 15, .45); z-index: 40; opacity: 0; transition: opacity .2s; }
.scrim.show { opacity: 1; }
.sheet {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 41; max-height: 88vh; overflow-y: auto; overscroll-behavior: contain;
  background: var(--bg); border-radius: 22px 22px 0 0; transform: translateY(100%); transition: transform .25s ease;
  padding-block: 8px calc(20px + env(safe-area-inset-bottom, 0px)); padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px));
  max-width: 720px; margin: 0 auto; display: grid; gap: 14px;
}
.sheet.show { transform: none; }
.grab { width: 40px; height: 5px; border-radius: 3px; background: var(--line); margin: 2px auto 0; }
.sheet-h { display: flex; align-items: center; gap: 12px; }
.sheet-h .t { flex: 1; min-width: 0; }
.sheet-h h2 { margin: 0; font: 700 20px/1.2 var(--font-display); overflow-wrap: anywhere; }
.sheet-h p { margin: 2px 0 0; font-size: 12px; color: var(--fg-dim); }

/* dialog (unlock) */
.dialog { position: fixed; inset: 0; z-index: 60; display: grid; place-items: center; padding: 24px max(16px, env(safe-area-inset-left, 0px)); background: rgba(5, 10, 15, .55); }
.dialog .box { background: var(--surface); border-radius: 22px; padding: 20px; width: 100%; max-width: 380px; display: grid; gap: 14px; box-shadow: var(--shadow); }
.dialog h3 { margin: 0; font: 700 19px/1.25 var(--font-display); }
.dialog p { margin: 0; font-size: 14px; color: var(--fg-dim); }
input[type="range"].slide-confirm { height: 56px; border-radius: 16px; background: color-mix(in srgb, var(--err) 18%, var(--surface-2)); }
input[type="range"].slide-confirm::-webkit-slider-thumb { width: 50px; height: 50px; border-radius: 14px; background: var(--err); border: 0; }
input[type="range"].slide-confirm::-moz-range-thumb { width: 50px; height: 50px; border-radius: 14px; background: var(--err); border: 0; }

/* toasts */
.toasts { position: fixed; left: 0; right: 0; bottom: calc(var(--tabbar-h) + env(safe-area-inset-bottom, 0px) + 10px); z-index: 70; display: grid; gap: 8px; padding: 0 max(16px, env(safe-area-inset-left, 0px)); pointer-events: none; max-width: 720px; margin: 0 auto; }
.toast { pointer-events: auto; background: var(--fg); color: var(--bg); border-radius: 14px; padding: 11px 14px; font-size: 13px; box-shadow: var(--shadow); display: flex; gap: 10px; align-items: flex-start; animation: up .2s ease; }
.toast .k { font-weight: 800; white-space: nowrap; }
.toast.confirmed .k { color: var(--ok); } .toast.unconfirmed .k { color: var(--unconf); } .toast.failed .k { color: var(--err); }
@keyframes up { from { transform: translateY(10px); opacity: 0; } }

/* tab bar */
.tabbar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 30; background: color-mix(in srgb, var(--surface) 92%, transparent);
  -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px); border-top: 1px solid var(--line);
  display: grid; grid-template-columns: repeat(4, 1fr);
  padding-bottom: env(safe-area-inset-bottom, 0px); padding-left: env(safe-area-inset-left, 0px); padding-right: env(safe-area-inset-right, 0px);
}
.tabbar button { border: 0; background: transparent; height: var(--tabbar-h); display: grid; place-items: center; align-content: center; gap: 3px; font-size: 11px; font-weight: 600; color: var(--fg-dim); }
.tabbar svg { width: 24px; height: 24px; }
.tabbar button[aria-current="page"] { color: var(--accent); }

/* scenes */
.scene { display: grid; grid-template-columns: 44px 1fr auto; gap: 12px; align-items: center; }
.scene .ico { background: var(--accent-soft); color: var(--accent); }
.scene .s-name { font-weight: 700; }
.scene .s-meta { font-size: 12px; color: var(--fg-dim); }
.result-list { display: grid; gap: 6px; font-size: 13px; margin: 0; padding: 0; list-style: none; }
.result-list li { display: flex; gap: 8px; justify-content: space-between; align-items: baseline; }
.o-confirmed { color: var(--ok); font-weight: 700; } .o-unconfirmed { color: var(--unconf); font-weight: 700; } .o-failed { color: var(--err); font-weight: 700; }
.step-row { display: grid; grid-template-columns: 1fr auto; gap: 8px; align-items: center; font-size: 13px; padding: 8px 0; border-bottom: 1px solid var(--line); }

/* login */
.login { min-height: 100vh; display: grid; place-items: center; padding: 24px max(16px, env(safe-area-inset-left, 0px)); }
.login .box { width: 100%; max-width: 380px; display: grid; gap: 16px; }
.login h1 { font: 800 34px/1 var(--font-display); letter-spacing: -.03em; margin: 0; }
.login p { color: var(--fg-dim); margin: 0; font-size: 14px; }
.logo { width: 64px; height: 64px; border-radius: 18px; }

.muted { color: var(--fg-dim); font-size: 12px; }
.spinner { width: 16px; height: 16px; border: 2px solid var(--line); border-top-color: var(--accent); border-radius: 50%; animation: spin .8s linear infinite; display: inline-block; vertical-align: -3px; }

@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation: none !important; transition: none !important; } }