:root {
  --bg: #ffffff;
  --fg: #14161a;
  --muted: #5c6370;
  --line: #d8dce3;
  --accent: #1f6feb;
  --accent-fg: #ffffff;
  --ok: #1a7f37;
  --err: #c3312f;
  --panel: #f6f8fa;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --fg: #e9edf3;
    --muted: #9aa4b2;
    --line: #262b33;
    --accent: #4c8dff;
    --accent-fg: #0f1115;
    --ok: #3fb950;
    --err: #f85149;
    --panel: #161a21;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif;
}
main { max-width: 440px; margin: 0 auto; padding: 32px 16px 64px; }
.brand { color: var(--muted); font-size: 14px; margin: 0 0 24px; }
h1 { font-size: 24px; margin: 0 0 12px; }
.lead { color: var(--muted); }
form { display: grid; gap: 16px; margin: 16px 0; }
label { display: grid; gap: 4px; font-size: 14px; color: var(--muted); }
input[type="text"], input[type="email"], input[type="password"] {
  font: inherit; color: var(--fg); background: var(--bg);
  border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px;
}
input:focus-visible, button:focus-visible, a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
button, .button {
  font: inherit; font-weight: 600; cursor: pointer; text-align: center; text-decoration: none;
  background: var(--accent); color: var(--accent-fg);
  border: 1px solid var(--accent); border-radius: 8px; padding: 10px 16px; display: inline-block;
}
button.secondary, .button.secondary { background: transparent; color: var(--accent); }
button.link { background: none; border: 0; color: var(--accent); padding: 0; font-weight: 400; text-decoration: underline; }
button:disabled { opacity: 0.5; cursor: not-allowed; }
a { color: var(--accent); }
.row { display: flex; gap: 12px; flex-wrap: wrap; }
.alt { font-size: 14px; color: var(--muted); margin: 8px 0; }
.small { font-size: 14px; color: var(--muted); overflow-wrap: anywhere; }
.message { margin: 0; font-size: 14px; }
.message.error { color: var(--err); }
.rules { list-style: none; margin: 0; padding: 0; font-size: 14px; color: var(--muted); display: grid; gap: 2px; }
.rules li::before { content: "\2717  "; color: var(--err); }
.rules li[data-met="true"]::before { content: "\2713  "; color: var(--ok); }
.qr { display: block; margin: 16px 0; background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 8px; }
.codes {
  list-style: none; margin: 16px 0; padding: 16px; background: var(--panel);
  border: 1px solid var(--line); border-radius: 8px;
  font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 18px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 8px;
}
.check { display: flex; flex-direction: row; align-items: center; gap: 8px; color: var(--fg); margin: 16px 0; }
[hidden] { display: none !important; }

/* Área do operador (app.html) */
:root { --warn: #9a6700; }
@media (prefers-color-scheme: dark) { :root { --warn: #d29922; } }
body.app main.content { max-width: 760px; margin: 0; padding: 24px 16px 64px; flex: 1; min-width: 0; }
.topbar {
  display: flex; align-items: center; gap: 12px; padding: 12px 16px;
  border-bottom: 1px solid var(--line);
}
.topbar .brand { margin: 0; }
.topbar .org-name { font-weight: 600; flex: 1; overflow-wrap: anywhere; }
.topbar button { margin-left: auto; }
.topbar { flex-wrap: wrap; }
.cost { margin: 0; }
.cost strong { font-size: 18px; }
.cost small { display: block; color: var(--muted); }
.mode-nav { display: inline-flex; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.mode-nav[hidden] { display: none; }
.mode-nav a { padding: 6px 12px; font-size: 14px; text-decoration: none; color: var(--fg); }
.mode-nav a + a { border-left: 1px solid var(--line); }
.mode-nav a[aria-current="page"] { background: var(--accent); color: var(--accent-fg); font-weight: 600; }
.app-loading { padding: 24px 16px; margin: 0; }
.shell { display: flex; flex-direction: column; }
.sidebar { display: flex; flex-wrap: wrap; gap: 4px; padding: 12px 16px; border-bottom: 1px solid var(--line); }
.sidebar a, .sidebar .nav-disabled { padding: 8px 12px; border-radius: 8px; text-decoration: none; color: var(--fg); }
.sidebar a[aria-current="page"] { background: var(--panel); color: var(--accent); font-weight: 600; }
.sidebar .nav-disabled { color: var(--muted); cursor: not-allowed; }
@media (min-width: 760px) {
  .shell { flex-direction: row; align-items: flex-start; }
  .sidebar { flex-direction: column; flex-wrap: nowrap; width: 200px; border-bottom: 0; border-right: 1px solid var(--line); min-height: calc(100vh - 60px); }
}
.card { border: 1px solid var(--line); border-radius: 10px; padding: 16px; margin: 0 0 16px; background: var(--panel); display: grid; gap: 12px; }
.card h2 { font-size: 13px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); margin: 0; }
.card p { margin: 0; }
.card .row > * { flex: 1 1 160px; }
select {
  font: inherit; color: var(--fg); background: var(--bg);
  border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; width: 100%;
}
.banner { margin: 0 0 16px; padding: 12px 16px; border-radius: 8px; border: 1px solid var(--warn); color: var(--fg); background: var(--panel); }
.banner[data-kind="suspended"], .banner[data-kind="invalid-preset"], .banner[data-kind="audio-format"] { border-color: var(--err); }
.message.warn { color: var(--warn); font-weight: 600; }
.meter { height: 12px; border-radius: 6px; background: var(--line); overflow: hidden; }
.meter > div { height: 100%; width: 0%; background: var(--ok); transition: width 80ms linear; }
.checklist { list-style: none; margin: 0; padding: 0; }
.checklist li { display: flex; gap: 8px; align-items: baseline; padding: 6px 0; border-bottom: 1px solid var(--line); }
.checklist li:last-child { border-bottom: 0; }
.mark { font-weight: 700; min-width: 1.2em; color: var(--muted); }
.mark::before { content: "\2022"; }
.mark.ok { color: var(--ok); }
.mark.ok::before { content: "\2713"; }
.state[data-phase="live"] { color: var(--ok); }
.state[data-phase="reconnecting"] { color: var(--warn); }
input[type="range"] { width: 100%; padding: 0; accent-color: var(--accent); }
.scale { display: flex; justify-content: space-between; gap: 8px; font-size: 13px; color: var(--muted); }
.checks { display: flex; flex-wrap: wrap; gap: 6px 16px; }
.checks label { display: flex; flex-direction: row; gap: 6px; align-items: center; color: var(--fg); }
.checks input:disabled + span { color: var(--muted); }
.qr-wrap { display: grid; gap: 16px; grid-template-columns: 1fr; align-items: start; }
@media (min-width: 560px) { .qr-wrap { grid-template-columns: auto 1fr; } }
.qr-side { display: grid; gap: 8px; min-width: 0; }
.qr-side input { width: 100%; font-size: 14px; }
/* Fundo branco fixo: o QR precisa de contraste alto, inclusive no tema escuro. */
.qr-card { background: #ffffff; border: 1px solid var(--line); border-radius: 10px; padding: 12px; width: 208px; }
.qr-card svg { display: block; width: 100%; height: auto; }
.qr-card.big {
  position: fixed; inset: 0; z-index: 10; width: auto; border-radius: 0;
  display: flex; align-items: center; justify-content: center; padding: 24px; cursor: zoom-out;
}
.qr-card.big svg { width: min(86vw, 86vh); }

/* History */
.table-wrap { overflow-x: auto; }
table.history { width: 100%; border-collapse: collapse; font-size: 14px; }
table.history th, table.history td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
table.history th { color: var(--muted); font-weight: 600; white-space: nowrap; }
table.history td.num { font-variant-numeric: tabular-nums; }

/* Painel do dono (admin.html) */
main.admin { max-width: 1100px; margin: 0 auto; padding: 24px 16px 64px; }
main.admin h1 { font-size: 20px; margin: 24px 0 12px; }
.stats { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
.stat { border: 1px solid var(--line); border-radius: 10px; padding: 12px 16px; background: var(--panel); }
.stat .label { font-size: 13px; color: var(--muted); }
.stat .value { font-size: 24px; font-weight: 600; font-variant-numeric: tabular-nums; }
.stat .sub { font-size: 13px; color: var(--muted); }
.filters { margin-bottom: 12px; }
.filters > * { flex: 1 1 200px; }
td.actions { white-space: nowrap; }
td.actions button { padding: 4px 10px; font-size: 13px; margin-right: 4px; }
dialog { border: 1px solid var(--line); border-radius: 10px; background: var(--bg); color: var(--fg); max-width: 420px; width: calc(100% - 32px); }
dialog h2 { font-size: 18px; margin: 0; }