:root, :root[data-theme="colour"] {
  --bg: #FDFCFB; --panel: #FFFFFF; --field: #F6F6F6; --ink: #24313A; --ink-soft: #3C4851;
  --muted: #6B747A; --faint: #8A9197; --line: rgba(36, 49, 58, 0.10); --line-strong: rgba(36, 49, 58, 0.18);
  --accent: #287581; --accent-soft: #E6F0F1; --accent-line: rgba(40, 117, 129, 0.35);
  --strong: #24313A; --on-strong: #FFFFFF; --danger: #A83D53; --danger-soft: #F7E8EB;
  --code-bg: #F4F1EA; --dot: rgba(36, 49, 58, 0.09); --hover: rgba(36, 49, 58, 0.05);
  --shadow-lg: 0 1px 2px rgba(36, 49, 58, 0.05), 0 18px 44px rgba(36, 49, 58, 0.09);
  --logo: url("/static/home/logo-colour.svg"); --wordmark: url("/static/home/wordmark-colour.svg");
}
:root[data-theme="grey"] {
  --bg: #FFFFFF; --panel: #FFFFFF; --field: #F5F5F5; --ink: #111111; --ink-soft: #3A3A3A;
  --muted: #6B6B6B; --faint: #8C8C8C; --line: rgba(0, 0, 0, 0.10); --line-strong: rgba(0, 0, 0, 0.18);
  --accent: #111111; --accent-soft: #EDEDED; --accent-line: rgba(0, 0, 0, 0.35);
  --strong: #111111; --on-strong: #FFFFFF; --danger: #111111; --danger-soft: #EDEDED;
  --code-bg: #F4F4F4; --dot: rgba(0, 0, 0, 0.09); --hover: rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 1px 2px rgba(0, 0, 0, 0.05), 0 18px 44px rgba(0, 0, 0, 0.09);
  --logo: url("/static/home/logo-grey.svg"); --wordmark: url("/static/home/wordmark-grey.svg");
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #12181C; --panel: #1A2126; --field: #20282E; --ink: #E9E7E2; --ink-soft: #C9CFD3;
  --muted: #8C969D; --faint: #6F7A81; --line: rgba(255, 255, 255, 0.09); --line-strong: rgba(255, 255, 255, 0.17);
  --accent: #6CBAC4; --accent-soft: #17363C; --accent-line: rgba(108, 186, 196, 0.45);
  --strong: #E9E7E2; --on-strong: #12181C; --danger: #E28DA0; --danger-soft: #3A2127;
  --code-bg: #20282E; --dot: rgba(255, 255, 255, 0.07); --hover: rgba(255, 255, 255, 0.06);
  --shadow-lg: 0 1px 2px rgba(0, 0, 0, 0.35), 0 18px 44px rgba(0, 0, 0, 0.45);
  --logo: url("/static/home/logo-dark.svg"); --wordmark: url("/static/home/wordmark-dark.svg");
}
/* ---- shared by the account pages (site.css, 2026-10-03) ------------------ */
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; color: var(--ink); background: var(--bg);
  font: 15px/1.6 "Instrument Sans", "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
a { color: var(--accent); }
a:hover { color: var(--ink); }
code, .mono { font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .9em; }
code { background: var(--code-bg); border-radius: 5px; padding: 1px 5px; }

/* top bar: brand left, links right */
.site-head { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.site-head .in { max-width: 1120px; margin: 0 auto; padding: 10px 20px; display: flex; align-items: center; gap: 18px; }
.site-head .brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: inherit; margin-right: auto; }
.site-head .brand .logo { width: 30px; height: 29px; background: var(--logo) center / contain no-repeat; }
.site-head .brand .name { width: 170px; height: 19px; background: var(--wordmark) left center / contain no-repeat; }
.site-head nav { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }
.site-head nav a { color: var(--ink-soft); text-decoration: none; font-size: 14px; padding: 6px 10px; border-radius: 8px; }
.site-head nav a:hover, .site-head nav a[aria-current="page"] { background: var(--hover); color: var(--ink); }

.theme-switch { display: flex; gap: 2px; padding: 3px; border-radius: 1000px; background: var(--panel);
  box-shadow: 0 0 0 1px var(--line-strong); }
.theme-switch button { width: 28px; height: 28px; padding: 0; border: 0; border-radius: 1000px; background: transparent;
  display: flex; align-items: center; justify-content: center; cursor: pointer; color: var(--muted); }
.theme-switch button:hover { background: var(--hover); color: var(--ink); }
.theme-switch button[aria-pressed="true"] { background: var(--field); color: var(--ink); box-shadow: 0 0 0 1px var(--line-strong); }
.theme-switch svg { width: 14px; height: 14px; display: block; }

.page { max-width: 1120px; margin: 0 auto; padding: 36px 20px 64px; }
.page.narrow { max-width: 760px; }
h1 { font-size: 32px; font-weight: 600; letter-spacing: -0.02em; line-height: 1.2; margin: 0 0 8px; }
h2 { font-size: 21px; font-weight: 600; letter-spacing: -0.01em; margin: 40px 0 12px; }
h3 { font-size: 16px; font-weight: 600; margin: 0 0 6px; }
.lead { color: var(--muted); font-size: 16.5px; margin: 0 0 24px; max-width: 62ch; }
.muted { color: var(--muted); }
.faint { color: var(--faint); font-size: 13px; }

.card { background: var(--panel); border-radius: 14px; box-shadow: 0 0 0 1px var(--line), var(--shadow-lg); padding: 22px; }
.card.flat { box-shadow: 0 0 0 1px var(--line); }
.grid { display: grid; gap: 16px; }
.grid.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 880px) { .grid.cols-3, .grid.cols-4 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 620px) { .grid.cols-3, .grid.cols-2, .grid.cols-4 { grid-template-columns: 1fr; } }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 10px 16px; font: inherit;
  font-weight: 500; border-radius: 10px; border: 1px solid var(--line-strong); background: var(--panel); color: var(--ink);
  cursor: pointer; text-decoration: none; transition: filter .12s ease, transform .08s ease, background .12s ease; }
.btn:hover { background: var(--hover); color: var(--ink); }
.btn.primary { background: var(--strong); color: var(--on-strong); border-color: var(--strong); }
.btn.primary:hover { filter: brightness(1.15); background: var(--strong); color: var(--on-strong); }
:root[data-theme="dark"] .btn.primary:hover { filter: brightness(0.9); }
.btn.danger { color: var(--danger); border-color: var(--danger-soft); }
.btn.small { padding: 5px 10px; font-size: 13px; border-radius: 8px; }
.btn:disabled { opacity: .55; cursor: default; }
.btn.block { width: 100%; }

label { display: block; font-size: 13px; font-weight: 600; color: var(--ink-soft); margin: 0 0 6px; }
.field { margin-bottom: 14px; }
input[type=text], input[type=email], input[type=password], input[type=number], input[type=search], select, textarea {
  width: 100%; padding: 10px 12px; font: inherit; color: var(--ink); background: var(--field);
  border: 1px solid var(--line); border-radius: 10px; outline: none; }
input:focus, select:focus, textarea:focus { border-color: var(--accent-line); background: var(--panel); box-shadow: 0 0 0 3px var(--accent-soft); }
.check { display: flex; gap: 8px; align-items: flex-start; font-size: 13.5px; color: var(--ink-soft); font-weight: 400; }
.check input { margin-top: 4px; }

.msg { display: none; margin: 0 0 14px; padding: 9px 12px; border-radius: 9px; font-size: 13.5px; }
.msg.show { display: block; }
.msg.err { background: var(--danger-soft); color: var(--danger); }
.msg.ok { background: var(--accent-soft); color: var(--ink); }

.badge { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 12px; font-weight: 600;
  background: var(--accent-soft); color: var(--accent); }
.badge.grey { background: var(--field); color: var(--muted); }
.badge.warn { background: var(--danger-soft); color: var(--danger); }

table.t { width: 100%; border-collapse: collapse; font-size: 14px; }
table.t th { text-align: left; font-weight: 600; color: var(--muted); font-size: 12.5px; padding: 8px 10px; border-bottom: 1px solid var(--line-strong); }
table.t td { padding: 9px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
table.t tr:last-child td { border-bottom: 0; }
.scroll-x { overflow-x: auto; }
.num { text-align: right; font-variant-numeric: tabular-nums; }

.meter { height: 8px; border-radius: 999px; background: var(--field); overflow: hidden; box-shadow: inset 0 0 0 1px var(--line); }
.meter > span { display: block; height: 100%; background: var(--accent); border-radius: 999px; }

.site-foot { border-top: 1px solid var(--line); color: var(--faint); font-size: 13px; }
.site-foot .in { max-width: 1120px; margin: 0 auto; padding: 18px 20px; display: flex; gap: 16px; flex-wrap: wrap; }
.site-foot a { color: var(--muted); text-decoration: none; }
.site-foot a:hover { color: var(--ink); }

/* a centred form page (sign up, reset) */
.auth { min-height: calc(100vh - 120px); display: grid; place-items: center; padding: 28px 16px; }
.auth .card { width: min(420px, 100%); padding: 30px 28px 24px; }
.auth h1 { font-size: 23px; font-weight: 500; text-align: center; margin: 0 0 4px; }
.auth .sub { text-align: center; color: var(--muted); font-size: 14px; margin: 0 0 20px; }