:root {
  --ink: #1d2329;
  --muted: #5f6670;
  --line: #d9dde3;
  --soft: #f4f6f8;
  --accent: #1f6f4a;
  --accent-ink: #ffffff;
  --bg: #ffffff;
  color-scheme: light;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 14px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
.lf-form { display: grid; gap: 10px; }
.top { display: grid; gap: 8px; padding: 10px 12px; background: var(--soft); border-radius: 10px; }
details { border: 1px solid var(--line); border-radius: 10px; padding: 6px 12px 10px; }
summary { cursor: pointer; font-weight: 650; padding: 4px 0; }
fieldset { border: 0; margin: 8px 0 0; padding: 0; }
legend { font-size: 12px; font-weight: 600; color: var(--muted); padding: 0; margin-bottom: 4px; }
label.wide { display: grid; gap: 4px; margin-top: 8px; }
label.wide > span, label.inline > span { font-size: 12px; font-weight: 600; color: var(--muted); }
label.inline { display: grid; gap: 4px; }
.range { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.range legend { grid-column: 1 / -1; }
input, select { font: inherit; color: var(--ink); background: #fff; border: 1px solid #c5cad1; border-radius: 7px; padding: 6px 8px; min-width: 0; width: 100%; }
.range input { width: 100%; }
.range label.inline > span, label.wide > span.small { font-weight: 400; }
/* A field that can't be changed looks it: soft fill, muted text. */
input:disabled { background: var(--soft); color: var(--muted); border-color: var(--line); }
input:focus-visible, select:focus-visible, button:focus-visible, summary:focus-visible, a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 2px 10px; }
label.check { display: flex; gap: 6px; align-items: flex-start; padding: 4px 0; font-size: 13px; cursor: pointer; }
label.check input { width: auto; flex: none; margin: 2px 0 0; }
input[type=checkbox], input[type=radio] { accent-color: var(--ink); }
label.switch { display: flex; gap: 8px; align-items: center; font-weight: 650; cursor: pointer; }
label.switch input { width: auto; margin: 0; transform: scale(1.2); }
.hint { margin: 6px 0 0; font-size: 12px; color: var(--muted); }
.actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; position: sticky; bottom: 0; background: var(--bg); padding: 8px 0; border-top: 1px solid var(--line); }
.actions [data-clear] { margin-left: auto; }
/* Hover feedback in token colours only. */
button:hover:not(:disabled):not(.primary):not(.link):not(.danger-btn) { background: var(--soft); }
.tabs button:hover { color: var(--ink); }
/* Room between groups so each reads as its own. */
fieldset.range { margin-top: 12px; }
label.wide + label.check { margin-top: 6px; }
form.account > hr:first-child { margin-top: 12px; }
/* A pinned footer holding a tick-box above its button. */
.actions.stack { display: grid; gap: 6px; }
.actions.stack .primary { justify-self: stretch; }
button { font: inherit; font-weight: 600; border: 1px solid #c5cad1; background: #fff; color: var(--ink); border-radius: 8px; padding: 6px 12px; cursor: pointer; }
button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); font-weight: 650; }
.status { color: var(--ink); font-weight: 600; font-size: 13px; }
/* 700 is kept for status symbols only. */
h1, h2, h3, b, strong { font-weight: 650; }

/* Sign-up and account screens */
.onboard, .account { display: grid; gap: 10px; }
.onboard h2 { font-size: 17px; margin: 4px 0 0; line-height: 1.4; }
.onboard p { margin: 0; }
.account h3 { font-size: 15px; margin: 4px 0 0; }
.box { background: var(--soft); border-radius: 10px; padding: 10px 12px; }
.box h3 { font-size: 15px; margin: 0 0 4px; }
.box p { margin: 4px 0; }
.collect { margin: 6px 0; padding-left: 16px; display: grid; gap: 4px; }
.small { font-size: 12px; color: var(--muted); }
.err { display: block; font-style: normal; font-size: 12px; color: #b42318; min-height: 0; }
.err:empty { display: none; }
input[aria-invalid="true"] { border-color: #b42318; }
input.code { font-size: 17px; letter-spacing: .3em; text-align: center; }
button.link { border: 0; background: none; color: var(--accent); font-weight: 400; padding: 4px 0; text-decoration: underline; justify-self: start; }
/* A delete link is red and set apart from the harmless links beside it. */
button.link.del { color: #b42318; margin-left: auto; }
button:disabled { opacity: .55; cursor: default; }
.row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); margin-bottom: 10px; }
.tabs button { border: 0; border-bottom: 2px solid transparent; border-radius: 0; background: none; padding: 6px 10px; color: var(--muted); font-weight: 600; }
.tabs button[aria-selected="true"] { color: var(--ink); border-bottom-color: var(--accent); }
hr { border: 0; border-top: 1px solid var(--line); margin: 4px 0; width: 100%; }
details.danger { border-color: var(--line); }
.danger-btn { background: #b42318; border-color: #b42318; color: #fff; margin-top: 8px; }
a { color: var(--accent); }

/* Email alerts */
.alerts { display: grid; gap: 8px; margin-top: 10px; }
.alerts h3 { font-size: 15px; margin: 10px 0 0; }
.alerts .row input { flex: 1; min-width: 0; }
.alerts details { border: 1px solid var(--line); border-radius: 10px; padding: 4px 10px 8px; background: #fff; }
.alerts details details { margin-top: 6px; }
.alerts summary { font-weight: 600; font-size: 13px; }
.steps, .steps ol, .steps ul { padding-left: 16px; margin: 6px 0; display: grid; gap: 6px; font-size: 13px; }
.searches, .runs { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.searches li { background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 8px 10px; display: grid; gap: 2px; }
.searches .row { justify-content: space-between; }
.runs li { font-size: 12px; }
.notice { background: var(--soft); border: 1px solid var(--line); border-radius: 10px; padding: 8px 10px; }
.code-chip { font-family: ui-monospace, Consolas, monospace; font-size: 15px; background: #fff; padding: 2px 6px; border-radius: 4px; }
code { font-family: ui-monospace, Consolas, monospace; font-size: 12px; background: var(--soft); padding: 0 4px; border-radius: 4px; }

/* Plan and billing */
.upgrade h3 { font-size: 15px; margin: 8px 0 2px; }
.choose { display: grid; gap: 2px; margin: 6px 0; }
.upgrade .primary { width: 100%; margin-top: 6px; }
.warn { color: #b42318; }
.tip { margin: 0 0 8px; background: var(--soft); color: var(--ink); border-radius: 10px; padding: 6px 10px; }
.tip button.link { padding: 0; display: inline; }