:root {
  --bg: #f4f4f1; --card: #fff; --ink: #1a1d1f; --muted: #667075; --line: #dcdfdb;
  --accent: #2c6247; --accent-ink: #fff; --danger: #9a3030; --warn-bg: #f6ecd8;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #141719; --card: #1d2124; --ink: #e8ebe9; --muted: #9aa4a7; --line: #2e3438;
          --accent: #5fae86; --accent-ink: #0d1a13; --danger: #e08a8a; --warn-bg: #3a2f1b; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink);
       font: 16px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }
main { max-width: 640px; margin: 0 auto; padding: 16px 16px 48px; }
.bar { display: flex; justify-content: space-between; align-items: center; padding: 10px 16px;
       border-bottom: 1px solid var(--line); background: var(--card); }
.bar nav { display: flex; gap: 14px; align-items: center; }
.brand { font-weight: 700; color: var(--ink); text-decoration: none; }
a { color: var(--accent); }
h1 { font-size: 1.6rem; margin: 12px 0 8px; }
h2 { font-size: 1.2rem; margin: 28px 0 8px; }
.muted { color: var(--muted); }
.small { font-size: .88rem; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 14px; margin: 10px 0; }
.row { display: flex; justify-content: space-between; gap: 10px; align-items: baseline; flex-wrap: wrap; }
.tag { font-size: .78rem; border: 1px solid var(--line); border-radius: 99px; padding: 1px 8px; color: var(--muted); }
.flash { background: var(--card); border-left: 4px solid var(--accent); padding: 10px 12px; border-radius: 6px; }
.flash.error { border-color: var(--danger); }
.flash.warn { background: var(--warn-bg); border-color: #b07a2a; }
form.stack, .stack { display: flex; flex-direction: column; gap: 12px; }
label { display: flex; flex-direction: column; gap: 4px; font-size: .92rem; }
label.check { flex-direction: row; align-items: center; gap: 8px; }
fieldset { border: 1px solid var(--line); border-radius: 8px; }
input, select { font: inherit; padding: 10px; border: 1px solid var(--line); border-radius: 8px;
                background: var(--card); color: var(--ink); width: 100%; }
input[type=checkbox] { width: auto; }
input.copy { font-family: ui-monospace, Menlo, monospace; font-size: .85rem; }
button, .btn { font: inherit; border: 0; border-radius: 8px; padding: 9px 14px; cursor: pointer;
               background: var(--accent); color: var(--accent-ink); text-decoration: none; display: inline-block; }
button.big { width: 100%; padding: 16px; font-size: 1.1rem; font-weight: 600; margin-top: 6px; }
button.link { background: none; color: var(--accent); padding: 0; }
button.danger { background: none; color: var(--danger); border: 1px solid var(--danger); }
.small-btn { padding: 6px 10px; font-size: .88rem; }
.code { font-family: ui-monospace, Menlo, monospace; font-size: 1.25rem; letter-spacing: .15em; font-weight: 700; }
.code-line { margin: 12px 0 2px; }
.device { display: flex; justify-content: space-between; align-items: center; gap: 8px; padding: 8px 0;
          border-top: 1px solid var(--line); flex-wrap: wrap; }
.device:first-of-type { border-top: 0; }
.actions { display: flex; gap: 6px; }
.actions-bar { display: flex; gap: 8px; flex-wrap: wrap; }
form.inline { display: flex; gap: 8px; }
table.log { width: 100%; border-collapse: collapse; font-size: .85rem; }
table.log td { border-top: 1px solid var(--line); padding: 6px 4px; vertical-align: top; }
td.bad { color: var(--danger); font-weight: 600; }
.pair { display: grid; grid-template-columns: 1fr 8.5rem; gap: 10px; }
.tag.ok { color: var(--accent); border-color: var(--accent); }
.tag.bad { color: var(--danger); border-color: var(--danger); }
.warn-text { color: #b07a2a; }
/* Once opened from the home screen, the "add to home screen" hint has done its job. */
@media (display-mode: standalone) { .a2hs { display: none; } }