:root {
  --bg: #f4f5f7;
  --fg: #16181d;
  --muted: #5b6270;
  --card: #ffffff;
  --line: #d9dce3;
  --accent: #1f5fd1;
  --accent-fg: #ffffff;
  --ok: #157a3c;
  --ok-bg: #dcf3e4;
  --bad: #b3261e;
  --bad-bg: #fbe1df;
  --warn: #8a5a00;
  --warn-bg: #fdf0d2;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121418;
    --fg: #eceef2;
    --muted: #9aa1ad;
    --card: #1c1f25;
    --line: #2e333c;
    --accent: #4d8bf5;
    --accent-fg: #0b0d10;
    --ok: #6fd896;
    --ok-bg: #173323;
    --bad: #ff8a80;
    --bad-bg: #3a1d1b;
    --warn: #f3c25b;
    --warn-bg: #3a2f14;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.4;
}
main { max-width: 960px; margin: 0 auto; padding: 16px; }
.hidden { display: none !important; }
.muted { color: var(--muted); }
button {
  font: inherit;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--fg);
  border-radius: 10px;
  padding: 8px 14px;
  cursor: pointer;
  touch-action: manipulation;
}
button:focus-visible, input:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
button.small { padding: 4px 10px; font-size: 14px; }
button.danger { background: var(--bad); color: #fff; border-color: var(--bad); }
button.wide { width: 100%; margin-top: 12px; }
input[type=text], input[type=password] {
  font: inherit;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--card);
  color: var(--fg);
  min-width: 0;
}

/* Controller page */
body.controller main { max-width: 720px; min-height: 100vh; display: flex; flex-direction: column; gap: 16px; padding-bottom: calc(16px + env(safe-area-inset-bottom)); }
.top { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; justify-content: space-between; }
.who { font-size: 20px; font-weight: 600; }
.badges { display: flex; flex-wrap: wrap; gap: 6px; }
.badge { display: inline-block; padding: 4px 10px; border-radius: 999px; font-size: 14px; font-weight: 600; border: 1px solid transparent; }
.badge.ok { background: var(--ok-bg); color: var(--ok); }
.badge.bad { background: var(--bad-bg); color: var(--bad); }
.badge.warn { background: var(--warn-bg); color: var(--warn); }
.badge.unknown { background: var(--card); color: var(--muted); border-color: var(--line); }
.pad { display: grid; grid-template-columns: 1fr 2fr; gap: 12px; }
.big {
  font-size: 28px;
  font-weight: 700;
  min-height: 160px;
  border-radius: 18px;
  user-select: none;
  -webkit-user-select: none;
  -webkit-tap-highlight-color: transparent;
}
.big.next { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); }
.big:active { transform: scale(0.98); }
.inactive .big { opacity: 0.45; }
.result { min-height: 3em; font-size: 18px; margin: 0; padding: 10px 12px; border-radius: 10px; background: var(--card); border: 1px solid var(--line); }
.result.ok { color: var(--ok); border-color: var(--ok); }
.result.bad { color: var(--bad); border-color: var(--bad); }
.result.warn { color: var(--warn); border-color: var(--warn); }
.hint { color: var(--muted); font-size: 14px; margin: 0; }
@media (max-width: 560px) {
  .pad { grid-template-columns: 1fr; }
  .big.next { order: -1; min-height: 42vh; }
  .big.prev { min-height: 18vh; font-size: 22px; }
}

/* Admin page */
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; margin-bottom: 16px; }
.card h2 { margin: 0 0 10px; font-size: 18px; }
.admin-top { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.admin-top h1, #login h1 { font-size: 22px; }
#login { max-width: 380px; margin: 10vh auto; }
#login form { display: flex; flex-direction: column; gap: 10px; }
.error { color: var(--bad); min-height: 1.4em; margin: 0; }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid .card { margin-bottom: 0; }
.grid + .card { margin-top: 16px; }
@media (max-width: 720px) { .grid { grid-template-columns: 1fr; } }
.kv { display: grid; grid-template-columns: max-content 1fr; gap: 6px 14px; margin: 0; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; font-weight: 600; overflow-wrap: anywhere; }
.small-pad .big { min-height: 90px; font-size: 22px; }
.inline { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.inline input[type=text] { flex: 1 1 220px; }
.newlink { margin: 12px 0; padding: 10px 12px; border: 2px solid var(--accent); border-radius: 10px; }
.newlink p { margin: 0 0 8px; }
table.list { width: 100%; border-collapse: collapse; margin-top: 12px; font-size: 15px; }
table.list th, table.list td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--line); vertical-align: middle; }
table.list th { color: var(--muted); font-weight: 600; }
table.list td.actions { display: flex; flex-wrap: wrap; gap: 6px; }
.toggle.on { background: var(--ok-bg); color: var(--ok); border-color: var(--ok); }
.toggle.off { color: var(--muted); }
.out-executed { color: var(--ok); }
.out-rejected { color: var(--bad); }
.out-timeout { color: var(--warn); }
@media (max-width: 720px) {
  table.list thead { display: none; }
  table.list tr { display: block; border-bottom: 1px solid var(--line); padding: 6px 0; }
  table.list td { display: block; border: 0; padding: 2px 4px; }
}
body.plain main { max-width: 520px; padding-top: 15vh; }