:root {
  --bg: #f4f5f7; --panel: #ffffff; --text: #1d2330; --muted: #5d6677; --line: #d9dde5;
  --accent: #1f6feb; --accent-text: #ffffff; --bad: #b42318; --ok: #1a7f37;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #12151b; --panel: #1b1f27; --text: #e6e9ef; --muted: #98a1b3; --line: #2c3340;
    --accent: #4c8dff; --accent-text: #0b1020; --bad: #ff7b72; --ok: #56d364;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.4 system-ui, -apple-system, "Segoe UI", sans-serif; }
button, select, input { font: inherit; color: inherit; }
button { background: var(--panel); border: 1px solid var(--line); border-radius: 6px; padding: 6px 12px; cursor: pointer; }
button:hover { border-color: var(--accent); }
button.primary { background: var(--accent); color: var(--accent-text); border-color: var(--accent); }
select, input { background: var(--panel); border: 1px solid var(--line); border-radius: 6px; padding: 6px 8px; }

.bar { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between;
  padding: 10px 16px; background: var(--panel); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 2; }
.bar h1 { font-size: 18px; margin: 0; }
.tools { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; color: var(--muted); }

main { padding: 16px; }
.grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fill, minmax(min(100%, 640px), 640px)); justify-content: start; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; display: flex; flex-direction: column; }
.card.big { grid-column: 1 / -1; }
.card h2 { font-size: 15px; margin: 0; padding: 8px 12px; border-bottom: 1px solid var(--line); }
.shot { background: #000; aspect-ratio: 16 / 9; display: flex; align-items: center; justify-content: center; }
.shot img { width: 100%; height: 100%; object-fit: contain; cursor: zoom-in; }
.card.big .shot img { cursor: zoom-out; }
.ctl { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; padding: 8px 12px; color: var(--muted); font-size: 13px; }
.ctl .status { margin-right: auto; }
.status.err { color: var(--bad); }
.status.ok { color: var(--ok); }


.login { max-width: 360px; margin: 12vh auto 0; padding: 0 16px; }
.login form { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 20px; display: grid; gap: 12px; }
.login h1 { font-size: 20px; margin: 0 0 4px; }
.login label { display: grid; gap: 4px; color: var(--muted); font-size: 13px; }
.login input { width: 100%; }
#msg { min-height: 1.2em; color: var(--bad); font-size: 13px; }

.login .check { display: flex; gap: 8px; align-items: center; color: var(--text); font-size: 14px; }
.login .check input { width: auto; }
.login .hint { margin: -6px 0 0; color: var(--muted); font-size: 12px; }

.card.big { max-width: 1280px; }
.ptz { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; padding: 8px 12px 12px; border-top: 1px solid var(--line); }
.pad { display: grid; grid-template-columns: repeat(3, 48px); grid-template-rows: repeat(3, 48px); gap: 4px; }
.pad .dir { padding: 0; font-size: 18px; touch-action: none; user-select: none; -webkit-user-select: none; }
.pad .u { grid-column: 2; grid-row: 1; }
.pad .l { grid-column: 1; grid-row: 2; }
.pad .r { grid-column: 3; grid-row: 2; }
.pad .d { grid-column: 2; grid-row: 3; }
.pad .dir:active { background: var(--accent); color: var(--accent-text); }
.ptzside { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }

[hidden] { display: none !important; }
.tabs { display: flex; gap: 6px; }
.tab.on { background: var(--accent); color: var(--accent-text); border-color: var(--accent); }
.muted { color: var(--muted); }
.recbar { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin-bottom: 12px; color: var(--muted); }
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }
.chip { font-size: 13px; padding: 5px 9px; }
.chip.on { background: var(--accent); color: var(--accent-text); border-color: var(--accent); }
.chip.hevc { border-style: dashed; }
.player video { width: 100%; max-width: 960px; background: #000; border-radius: 8px; aspect-ratio: 16 / 9; }
.recinfo { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; font-size: 13px; }
.recinfo a { color: var(--accent); }

.tl { max-width: 960px; margin-top: 8px; }
.tlbar { position: relative; height: 38px; cursor: pointer; touch-action: none; border-radius: 6px; background: var(--line); }
.tlbar canvas { display: block; width: 100%; height: 100%; border-radius: 6px; }
.tlhead { position: absolute; top: 0; bottom: 0; width: 2px; background: var(--text); pointer-events: none; }
.tltip { position: absolute; top: -26px; transform: translateX(-50%); background: var(--panel); border: 1px solid var(--line); border-radius: 4px; padding: 1px 6px; font-size: 12px; white-space: nowrap; pointer-events: none; z-index: 1; }
.tlaxis { display: flex; justify-content: space-between; gap: 8px; font-size: 12px; color: var(--muted); margin-top: 2px; }
.tlnav { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin: 8px 0; font-size: 13px; }
#tlEvents .chip { font-variant-numeric: tabular-nums; }

/* ---- finestra Impostazioni */
.bar .tools { margin-left: auto; }
dialog { padding: 0; border: 1px solid var(--line); border-radius: 12px; background: var(--panel); color: var(--text); width: min(720px, 94vw); max-height: 90vh; }
dialog::backdrop { background: rgba(0, 0, 0, .5); }
.dlg { padding: 16px 18px 20px; }
.dlg-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 8px; }
.dlg-head h2 { margin: 0; font-size: 18px; }
.dlg-sec { border-top: 1px solid var(--line); padding: 12px 0 4px; margin-top: 10px; }
.dlg-sec h3 { margin: 0 0 8px; font-size: 15px; }
.dlg-sec h4 { margin: 14px 0 6px; font-size: 14px; }
.dlg .row { display: flex; flex-wrap: wrap; gap: 10px; align-items: end; margin: 6px 0; }
.dlg label { display: grid; gap: 3px; color: var(--muted); font-size: 13px; }
.dlg label.inline { display: flex; gap: 10px; align-items: center; }
.dlg label.check { display: flex; gap: 8px; align-items: center; color: var(--text); margin: 6px 0; }
.dlg label.check input { width: auto; }
.dlg .hint { margin: 6px 0; color: var(--muted); font-size: 12px; }
.users { list-style: none; margin: 0 0 8px; padding: 0; display: grid; gap: 6px; }
.users li { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; padding: 6px 8px; border: 1px solid var(--line); border-radius: 8px; }
.users .uname { font-weight: 600; }
.users .ucreated { margin-left: auto; font-size: 12px; }
.badge { font-size: 11px; padding: 1px 7px; border-radius: 10px; background: var(--line); color: var(--text); }
button.danger { color: var(--bad); border-color: var(--bad); }
#userMsg.ok { color: var(--ok); }
#userMsg.err { color: var(--bad); }
.logwrap { margin-top: 10px; overflow: auto; max-height: 45vh; border: 1px solid var(--line); border-radius: 8px; }
.logwrap table { border-collapse: collapse; width: 100%; font-size: 12px; }
.logwrap th, .logwrap td { text-align: left; padding: 3px 8px; border-bottom: 1px solid var(--line); white-space: nowrap; }