:root {
  --bg: #f4f0ea; --card: #fffdf9; --ink: #1f1a16; --muted: #857a70; --line: #e6ddd2;
  --warm: #e2692e; --warm-soft: #fbe6d9; --cold: #3478c9; --cold-soft: #dde9f7;
  --ok: #2f9a5c; --ok-soft: #dcf1e4; --bad: #c8412f; --track: #ece4da;
  --radius: 20px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14110f; --card: #1f1b18; --ink: #f3ece4; --muted: #9a8e83; --line: #2f2925;
    --warm: #f07a3c; --warm-soft: #3a2519; --cold: #5b9be0; --cold-soft: #1b2a3b;
    --ok: #4cbb7a; --ok-soft: #173323; --bad: #e0604c; --track: #2c2623;
  }
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; background: var(--bg); color: var(--ink); font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif; }
body { padding: env(safe-area-inset-top) 16px calc(32px + env(safe-area-inset-bottom)); max-width: 980px; margin: 0 auto; }
a { color: var(--warm); }
.num { font-family: ui-monospace, 'SF Mono', Menlo, Consolas, 'Roboto Mono', monospace; font-variant-numeric: tabular-nums; }
.muted { color: var(--muted); }
.hidden { display: none !important; }

header { display: flex; align-items: center; justify-content: space-between; padding: 18px 2px 8px; gap: 12px; }
h1 { font-size: 26px; font-weight: 700; margin: 0; letter-spacing: -0.02em; }
.sub { color: var(--muted); font-size: 13px; margin-top: 2px; display: flex; align-items: center; gap: 6px; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--ok); display: inline-block; }
.dot.off { background: var(--bad); }
.actions { display: flex; gap: 8px; }
.icon-btn { border: 1px solid var(--line); background: var(--card); color: var(--ink); width: 42px; height: 42px; border-radius: 14px; display: grid; place-items: center; cursor: pointer; text-decoration: none; }
.icon-btn svg { width: 20px; height: 20px; }
.spin svg { animation: spin 0.9s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

h2 { font-size: 13px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); font-weight: 600; margin: 22px 2px 10px; }

/* ---------- Карточки и формы ---------- */
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; }
.card + .card { margin-top: 12px; }
.card h3 { margin: 0 0 4px; font-size: 18px; }
.card p { margin: 6px 0 0; color: var(--muted); font-size: 14px; line-height: 1.45; }
label { display: block; font-size: 13px; font-weight: 600; margin: 14px 0 6px; }
label .hint { font-weight: 400; color: var(--muted); }
input, select { width: 100%; font: inherit; font-size: 16px; padding: 12px 14px; border-radius: 12px; border: 1px solid var(--line); background: var(--bg); color: var(--ink); }
input:focus, select:focus { outline: 2px solid color-mix(in srgb, var(--warm) 60%, transparent); outline-offset: 1px; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.row3 { display: grid; grid-template-columns: 2fr 1fr; gap: 10px; }
.check { display: flex; align-items: center; gap: 10px; font-weight: 500; }
.check input { width: 20px; height: 20px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font: inherit; font-weight: 700; font-size: 16px; padding: 14px 18px; border-radius: 14px; border: 1px solid transparent; background: var(--ink); color: var(--bg); cursor: pointer; min-height: 52px; text-decoration: none; }
.btn.block { width: 100%; }
.btn.warm { background: var(--warm); color: #fff; }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn.danger { background: transparent; color: var(--bad); border-color: color-mix(in srgb, var(--bad) 40%, var(--line)); }
.btn.small { min-height: 38px; padding: 8px 12px; font-size: 14px; border-radius: 10px; }
.btn:disabled { opacity: 0.55; cursor: default; }
.btn svg { width: 20px; height: 20px; }
.stack { display: grid; gap: 10px; margin-top: 16px; }
.msg { margin-top: 12px; padding: 10px 14px; border-radius: 12px; font-size: 14px; line-height: 1.4; }
.msg.err { background: color-mix(in srgb, var(--bad) 14%, transparent); color: var(--bad); }
.msg.ok { background: var(--ok-soft); color: var(--ok); }
.msg.info { background: var(--cold-soft); color: var(--cold); }
.divider { display: flex; align-items: center; gap: 10px; color: var(--muted); font-size: 13px; margin: 18px 0 4px; }
.divider::before, .divider::after { content: ''; flex: 1; height: 1px; background: var(--line); }
.list { display: grid; gap: 8px; margin-top: 12px; }
.item { display: flex; align-items: center; gap: 12px; padding: 12px 14px; border: 1px solid var(--line); border-radius: 14px; background: var(--bg); }
.item .grow { flex: 1; min-width: 0; }
.item .t { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.item .s { font-size: 12.5px; color: var(--muted); margin-top: 2px; }
.badge { font-size: 11.5px; font-weight: 700; padding: 3px 8px; border-radius: 8px; background: var(--track); color: var(--muted); }
.badge.ok { background: var(--ok-soft); color: var(--ok); }

/* Узкая колонка для входа и мастера */
.narrow { max-width: 460px; margin: 0 auto; }
.brand { display: flex; align-items: center; gap: 12px; padding: 32px 0 18px; }
.brand img { width: 44px; height: 44px; border-radius: 12px; }
.brand b { font-size: 22px; letter-spacing: -0.02em; }
.brand span { display: block; color: var(--muted); font-size: 13px; }

/* Шаги мастера */
.steps { display: flex; gap: 6px; margin: 4px 0 16px; }
.steps i { flex: 1; height: 4px; border-radius: 4px; background: var(--track); }
.steps i.done { background: var(--warm); }
.steps i.now { background: color-mix(in srgb, var(--warm) 50%, var(--track)); }
.code-input { font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace; font-size: 22px; letter-spacing: 0.15em; text-align: center; text-transform: uppercase; }

/* ---------- Отопление ---------- */
.outdoor { display: flex; gap: 10px; overflow-x: auto; padding: 6px 0 4px; scrollbar-width: none; }
.outdoor::-webkit-scrollbar { display: none; }
.pill { flex: none; background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 8px 12px; font-size: 13px; }
.pill b { font-size: 15px; margin-left: 6px; }
.pill .bat { color: var(--muted); font-size: 11px; margin-left: 4px; }
.modes { display: grid; grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: 8px; }
.mode { border: 1.5px solid var(--line); background: var(--card); color: var(--ink); border-radius: 16px; padding: 12px 14px; font: inherit; font-weight: 600; font-size: 15px; text-align: left; cursor: pointer; display: flex; align-items: center; gap: 10px; min-height: 52px; }
.mode .sw { width: 12px; height: 12px; border-radius: 4px; flex: none; background: var(--muted); }
.mode.on { border-color: var(--mc, var(--warm)); background: color-mix(in srgb, var(--mc, var(--warm)) 14%, var(--card)); }
.mode:disabled { opacity: 0.55; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); gap: 12px; }
.circuit { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; display: grid; grid-template-columns: 112px 1fr; gap: 14px; align-items: center; }
.circuit.heat { border-color: color-mix(in srgb, var(--warm) 45%, var(--line)); }
.gauge { position: relative; width: 112px; height: 112px; }
.gauge svg { width: 100%; height: 100%; transform: rotate(135deg); }
.gauge .val { position: absolute; inset: 0; display: grid; place-items: center; text-align: center; }
.gauge .val b { font-size: 26px; font-weight: 500; letter-spacing: -0.03em; display: block; }
.gauge .val span { font-size: 11px; color: var(--muted); }
.cname { font-weight: 700; font-size: 17px; line-height: 1.2; }
.cmeta { color: var(--muted); font-size: 12.5px; margin-top: 3px; display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.tag { border-radius: 8px; padding: 2px 7px; font-size: 11.5px; font-weight: 600; background: var(--track); color: var(--muted); }
.tag.heat { background: var(--warm-soft); color: var(--warm); }
.tag.err { background: color-mix(in srgb, var(--bad) 15%, transparent); color: var(--bad); }
.stepper { display: flex; align-items: center; gap: 8px; margin-top: 12px; }
.stepper button { width: 44px; height: 44px; border-radius: 14px; border: 1px solid var(--line); background: var(--bg); color: var(--ink); font-size: 22px; cursor: pointer; display: grid; place-items: center; touch-action: manipulation; }
.stepper button:active { transform: scale(0.95); }
.target { flex: 1; text-align: center; }
.target b { font-size: 22px; font-weight: 500; }
.target span { display: block; font-size: 11px; color: var(--muted); }
.target.pending b { color: var(--warm); }
.range { font-size: 11px; color: var(--muted); text-align: center; margin-top: 6px; }
.empty, .error-box { background: var(--card); border: 1px dashed var(--line); border-radius: var(--radius); padding: 28px 20px; text-align: center; color: var(--muted); margin-top: 16px; }
.error-box { border-style: solid; border-color: color-mix(in srgb, var(--bad) 40%, var(--line)); color: var(--ink); }
.banner { background: var(--cold-soft); color: var(--cold); border-radius: 14px; padding: 10px 14px; font-size: 13px; font-weight: 600; margin-top: 8px; }
.skeleton { height: 144px; border-radius: var(--radius); background: linear-gradient(90deg, var(--card), var(--track), var(--card)); background-size: 200% 100%; animation: sh 1.4s infinite; }
@keyframes sh { to { background-position: -200% 0; } }

.toast { position: fixed; left: 50%; bottom: calc(20px + env(safe-area-inset-bottom)); transform: translateX(-50%) translateY(120px); background: var(--ink); color: var(--bg); padding: 12px 18px; border-radius: 14px; font-size: 14px; font-weight: 600; transition: transform 0.25s ease, opacity 0.25s ease; max-width: calc(100% - 32px); z-index: 10; opacity: 0; pointer-events: none; }
.toast.show { transform: translateX(-50%) translateY(0); opacity: 1; }
.toast.bad { background: var(--bad); color: #fff; }

@media (max-width: 360px) { .circuit { grid-template-columns: 96px 1fr; } .gauge { width: 96px; height: 96px; } .row { grid-template-columns: 1fr; } }