:root {
    --bg: #f3f4f6; --card: #fff; --text: #111827; --muted: #6b7280;
    --on: #16a34a; --on-bg: #dcfce7; --bad: #dc2626; --border: #e5e7eb;
}
@media (prefers-color-scheme: dark) {
    :root { --bg: #111827; --card: #1f2937; --text: #f9fafb; --muted: #9ca3af;
            --on: #4ade80; --on-bg: #14532d; --border: #374151; }
}
* { box-sizing: border-box; }
body { margin: 0; font: 16px/1.4 system-ui, sans-serif; background: var(--bg); color: var(--text); }
header { display: flex; align-items: center; gap: 12px; padding: 12px 16px; flex-wrap: wrap; }
header h1 { margin: 0; font-size: 22px; flex: 1; }
.conn { font-size: 13px; padding: 2px 8px; border-radius: 99px; background: var(--border); }
.conn.ok { background: var(--on-bg); color: var(--on); }
.conn.bad { background: var(--bad); color: #fff; }
.logout { color: var(--muted); font-size: 13px; text-decoration: none; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; padding: 0 16px 16px; }
.relay { display: flex; flex-direction: column; align-items: flex-start; gap: 4px; min-height: 92px; padding: 12px;
         border: 2px solid var(--border); border-radius: 14px; background: var(--card); color: var(--text);
         font: inherit; text-align: left; cursor: pointer; }
.relay .num { font-size: 12px; color: var(--muted); }
.relay .name { font-weight: 600; flex: 1; }
.relay .state { font-size: 13px; font-weight: 700; color: var(--muted); }
.relay.on { border-color: var(--on); background: var(--on-bg); }
.relay.on .state { color: var(--on); }
footer { display: flex; gap: 10px; padding: 0 16px 24px; }
button { font: inherit; }
footer button, .card button { padding: 10px 16px; border-radius: 10px; border: 0; background: var(--on); color: #fff; cursor: pointer; }
footer button.danger { background: var(--bad); }
.login { display: grid; place-items: center; min-height: 100vh; padding: 16px; }
.card { display: flex; flex-direction: column; gap: 10px; width: 100%; max-width: 320px; padding: 24px;
        background: var(--card); border-radius: 16px; }
.card h1 { margin: 0 0 8px; }
.card input { padding: 10px; border-radius: 10px; border: 1px solid var(--border); background: var(--bg); color: var(--text); font: inherit; }
.err { color: var(--bad); margin: 0; }

/* ---- doplňky (Klasický vzhled zůstává beze změny) ---- */
.ico, .logo, .relay .ico-wrap, .relay .sw { display: none; }
.back { color: var(--muted); font-size: 13px; text-decoration: none; }
.hdr-custom header { background: var(--hdr-bg); color: var(--hdr-fg); }
.hdr-custom header .logout, .hdr-custom header .back { color: inherit; opacity: .85; }
.relay.busy { opacity: .6; }

/* nastavení */
.settings { max-width: 640px; padding: 0 16px 24px; display: flex; flex-direction: column; gap: 12px; }
.panel { background: var(--card); border-radius: 14px; padding: 16px; display: flex; flex-direction: column; gap: 12px; }
.panel h2 { margin: 0; font-size: 17px; }
.hint { margin: -8px 0 0; color: var(--muted); font-size: 13px; }
.saved { margin: 0; color: var(--on); font-weight: 600; }
.seg { display: flex; flex-wrap: wrap; gap: 6px; }
.seg input { position: absolute; opacity: 0; pointer-events: none; }
.seg label { padding: 8px 14px; border-radius: 99px; border: 2px solid var(--border); cursor: pointer; }
.seg input:checked + label { border-color: var(--on); background: var(--on-bg); color: var(--on); font-weight: 600; }
.seg input:focus-visible + label { outline: 2px solid var(--on); outline-offset: 2px; }
.preview { display: flex; align-items: center; gap: 10px; padding: 14px 16px; border-radius: 10px; border: 2px dashed var(--border); }
.preview b { flex: 1; font-size: 18px; }
.pv-logo { width: 22px; height: 22px; border-radius: 6px; background: url(ikony/favicon.svg) center/cover; }
.pv-badge { font-size: 12px; padding: 2px 8px; border-radius: 99px; background: var(--on-bg); color: var(--on); }
.presets { display: flex; flex-wrap: wrap; gap: 6px; }
.preset { border: 1px solid #0002; border-radius: 99px; padding: 6px 12px; font-size: 13px; font-weight: 600; cursor: pointer; }
.fields { display: flex; flex-wrap: wrap; gap: 12px; }
.field { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--muted); }
.field input[type=color] { width: 64px; height: 38px; padding: 2px; border: 1px solid var(--border); border-radius: 8px; background: var(--bg); }
.field select { height: 38px; border-radius: 8px; border: 1px solid var(--border); background: var(--bg); color: var(--text); font: inherit; }
.settings:not(.mode-grad) .only-grad { display: none; }
.settings.mode-default .fields, .settings.mode-default .presets { opacity: .4; }
.actions { display: flex; gap: 10px; justify-content: flex-end; }
.btn { padding: 10px 18px; border-radius: 10px; border: 0; background: var(--border); color: var(--text); font: inherit; text-decoration: none; cursor: pointer; }
.btn.primary { background: var(--on); color: #fff; }
.card .logo { display: none; }

/* ---- místnosti, scény, časovač, správa ---- */
.tile { position: relative; display: flex; }
.tile[hidden] { display: none; }
.tile .relay { width: 100%; }
.relay .cd { font-size: 12px; color: var(--muted); font-variant-numeric: tabular-nums; }
.tmr { position: absolute; top: 8px; right: 8px; width: 30px; height: 30px; border-radius: 8px; border: 1px solid var(--border);
       background: var(--card); color: var(--muted); cursor: pointer; font-size: 14px; }
.tmr svg { display: none; }
.room-tabs { padding: 0 16px 10px; overflow-x: auto; }
.seg-links { display: flex; gap: 6px; }
.seg-links a { padding: 6px 14px; border-radius: 99px; border: 2px solid var(--border); color: var(--text); text-decoration: none; white-space: nowrap; }
.seg-links a.on { border-color: var(--on); background: var(--on-bg); color: var(--on); font-weight: 600; }
.scenes { display: flex; gap: 8px; padding: 0 16px 12px; overflow-x: auto; }
.scene-btn { padding: 8px 14px; border-radius: 10px; border: 2px solid var(--border); background: var(--card); color: var(--text); font: inherit; cursor: pointer; white-space: nowrap; }
.scene-btn.busy { opacity: .6; }
.scene-btn.done { border-color: var(--on); color: var(--on); }
.sheet { border: 0; border-radius: 14px; padding: 0; background: var(--card); color: var(--text); width: min(420px, calc(100vw - 24px)); }
.sheet::backdrop { background: #0006; }
.sheet form { display: flex; flex-direction: column; gap: 12px; padding: 18px; }
.sheet h2 { margin: 0; font-size: 18px; }
.tdlg-quick { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.tdlg-custom { display: flex; gap: 8px; }
.tdlg-custom input { flex: 1; min-width: 0; padding: 8px 10px; border-radius: 10px; border: 1px solid var(--border); background: var(--bg); color: var(--text); font: inherit; }
.tdlg-foot { display: flex; justify-content: space-between; gap: 8px; }
.btn.danger-text { color: var(--bad); }
.tabs { padding: 0 16px 12px; overflow-x: auto; }
.rows { display: flex; flex-direction: column; gap: 8px; }
.row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.row.new { padding-top: 8px; border-top: 1px dashed var(--border); }
.row input:not([type=checkbox]):not([type=color]), .row select, .scene-item select {
    min-height: 36px; padding: 4px 10px; border-radius: 8px; border: 1px solid var(--border); background: var(--bg); color: var(--text); font: inherit; }
.relay-row input[name^=name], .room-row input:not(.emoji), .scene .row input:not(.emoji) { flex: 1 1 160px; min-width: 0; }
.row input.emoji { width: 52px; text-align: center; }
.badge-num { width: 28px; text-align: center; font-weight: 700; color: var(--muted); font-variant-numeric: tabular-nums; }
.chk { display: inline-flex; align-items: center; gap: 4px; font-size: 13px; color: var(--muted); cursor: pointer; }
.days { display: inline-flex; gap: 2px; }
.day input { position: absolute; opacity: 0; pointer-events: none; }
.day span { display: inline-block; min-width: 30px; padding: 6px 0; text-align: center; border-radius: 6px; border: 1px solid var(--border); font-size: 12px; cursor: pointer; }
.day input:checked + span { background: var(--on-bg); border-color: var(--on); color: var(--on); font-weight: 700; }
.new-label, .word { font-size: 13px; font-weight: 600; color: var(--muted); }
.scene-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 8px; }
.scene-item { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--muted); }
.panel.new { border: 2px dashed var(--border); }
.settings > .hint { margin: 0; }

[hidden] { display: none !important; }
.relay .cd:empty { display: none; }