/* Circuit Trace: plain CSS, no build step. */
:root {
  --bg: #f6f7f9; --surface: #fff; --text: #1d2330; --muted: #5f6b7a; --border: #dfe3e8;
  --primary: #2453d4; --primary-ink: #fff; --primary-soft: #e8eefc;
  --ok: #157f3b; --ok-soft: #e6f4ea; --warn: #9a6200; --warn-soft: #fdf3dc;
  --err: #b42318; --err-soft: #fdecea; --radius: 8px; --shadow: 0 1px 2px rgba(16,24,40,.06);
  --font: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root { --bg:#12151b; --surface:#1a1f27; --text:#e7ebf0; --muted:#9aa5b1; --border:#2c333d;
          --primary:#6d8ff0; --primary-ink:#0b1020; --primary-soft:#1f2a44; --ok:#5cc583; --ok-soft:#173222;
          --warn:#e4b04a; --warn-soft:#3a2d12; --err:#f2877c; --err-soft:#3d1c19; }
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; font: 16px/1.55 var(--font); background: var(--bg); color: var(--text); }
a { color: var(--primary); }
img, svg { max-width: 100%; }
h1, h2, h3 { line-height: 1.25; margin: 0 0 .6em; }
h1 { font-size: 1.75rem; } h2 { font-size: 1.3rem; } h3 { font-size: 1.1rem; }
p { margin: 0 0 1em; }
code, .mono { font-family: var(--mono); font-size: .92em; }
.container { max-width: 1080px; margin: 0 auto; padding: 0 16px; }
.narrow { max-width: 460px; }

/* header / nav */
.site-header { background: var(--surface); border-bottom: 1px solid var(--border); }
.site-header .container { display: flex; align-items: center; gap: 16px; min-height: 60px; flex-wrap: wrap; }
.brand { font-weight: 700; text-decoration: none; color: var(--text); font-size: 1.1rem; margin-right: auto; }
.nav { display: flex; gap: 4px; align-items: center; flex-wrap: wrap; }
.nav a, .nav button.link { padding: 6px 10px; border-radius: 6px; text-decoration: none; color: var(--text); }
.nav a:hover, .nav button.link:hover { background: var(--primary-soft); }
.nav form { display: inline; margin: 0; }
.lang-switch { display: flex; gap: 2px; }
.lang-switch button { font-size: .8rem; padding: 3px 7px; }
.lang-switch button[aria-pressed="true"] { background: var(--primary-soft); border-color: var(--primary); }

main { padding: 32px 0 64px; }
.site-footer { border-top: 1px solid var(--border); padding: 24px 0; color: var(--muted); font-size: .9rem; }
.site-footer .container { display: flex; gap: 16px; flex-wrap: wrap; }
.site-footer a { color: var(--muted); }

/* surfaces */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
        padding: 20px; box-shadow: var(--shadow); margin-bottom: 20px; }
.card > :last-child { margin-bottom: 0; }
.grid { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.stack > * + * { margin-top: 12px; }
.row { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.spread { justify-content: space-between; }
.muted { color: var(--muted); }
.small { font-size: .875rem; }
.placeholder { outline: 2px dashed var(--warn); outline-offset: 4px; }
.placeholder-note { background: var(--warn-soft); color: var(--warn); padding: 4px 8px; border-radius: 4px;
                    font-size: .8rem; display: inline-block; margin-bottom: 8px; }

/* forms */
label { display: block; font-weight: 600; margin-bottom: 4px; }
.field { margin-bottom: 14px; }
.field small { display: block; color: var(--muted); font-weight: 400; }
input[type=text], input[type=email], input[type=password], input[type=number], input[type=search],
select, textarea {
  width: 100%; padding: 9px 11px; border: 1px solid var(--border); border-radius: 6px; font: inherit;
  background: var(--surface); color: var(--text);
}
input:focus, select:focus, textarea:focus, button:focus-visible, a:focus-visible {
  outline: 2px solid var(--primary); outline-offset: 1px;
}
.checkbox { display: flex; gap: 8px; align-items: flex-start; font-weight: 400; }
.checkbox input { margin-top: 4px; }
button, .button {
  display: inline-flex; align-items: center; gap: 6px; padding: 8px 14px; border-radius: 6px;
  border: 1px solid var(--border); background: var(--surface); color: var(--text); font: inherit;
  font-weight: 600; cursor: pointer; text-decoration: none; line-height: 1.3;
}
.button.primary, button.primary { background: var(--primary); border-color: var(--primary); color: var(--primary-ink); }
.button.danger, button.danger { color: var(--err); border-color: var(--err); }
button.link { border: 0; background: none; font-weight: 400; color: var(--primary); padding: 0; }
button.small, .button.small { padding: 4px 9px; font-size: .85rem; }
button[disabled] { opacity: .55; cursor: not-allowed; }
.inline-form { display: inline; }

/* feedback */
.alert { padding: 12px 14px; border-radius: 6px; margin-bottom: 16px; border: 1px solid transparent; }
.alert.success { background: var(--ok-soft); color: var(--ok); border-color: var(--ok); }
.alert.error { background: var(--err-soft); color: var(--err); border-color: var(--err); }
.alert.info { background: var(--primary-soft); color: var(--text); border-color: var(--primary); }
.alert.warn { background: var(--warn-soft); color: var(--warn); border-color: var(--warn); }
.badge { display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: .78rem; font-weight: 600;
         background: var(--primary-soft); color: var(--text); white-space: nowrap; }
.badge.ok { background: var(--ok-soft); color: var(--ok); }
.badge.warn { background: var(--warn-soft); color: var(--warn); }
.badge.err { background: var(--err-soft); color: var(--err); }

/* tables */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { font-size: .82rem; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); }
.key { font-family: var(--mono); background: var(--bg); padding: 6px 10px; border-radius: 6px;
       border: 1px solid var(--border); word-break: break-all; display: inline-block; }

/* stats */
.stats { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); }
.stat { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px; }
.stat .value { font-size: 1.6rem; font-weight: 700; }
.stat .label { color: var(--muted); font-size: .85rem; }

/* tabs */
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 20px; flex-wrap: wrap; }
.tabs a { padding: 8px 12px; text-decoration: none; color: var(--muted); border-bottom: 2px solid transparent; }
.tabs a[aria-current="page"] { color: var(--text); border-color: var(--primary); font-weight: 600; }

/* marketing */
.hero { padding: 48px 0 32px; }
.hero h1 { font-size: clamp(1.9rem, 4vw, 2.8rem); max-width: 18ch; }
.hero p { font-size: 1.15rem; color: var(--muted); max-width: 55ch; }
.plans { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.plan { display: flex; flex-direction: column; }
.plan .price { font-size: 1.8rem; font-weight: 700; }
.plan ul { padding-left: 18px; flex: 1; }
.qr svg { width: 200px; height: 200px; background: #fff; padding: 8px; border-radius: 6px; }

/* htmx (indicator styles are not injected because of the CSP) */
.htmx-indicator { opacity: 0; transition: opacity 200ms ease-in; }
.htmx-request .htmx-indicator, .htmx-request.htmx-indicator { opacity: 1; }

@media (max-width: 640px) {
  main { padding-top: 20px; }
  .site-header .container { padding-top: 8px; padding-bottom: 8px; }
  .hide-sm { display: none; }
  th, td { padding: 8px 6px; }
}

/* Spacing/width utilities (inline style attributes are blocked by the CSP). */
.maxw-120 { max-width: 120px; }
.maxw-160 { max-width: 160px; }
.maxw-180 { max-width: 180px; }
.maxw-200 { max-width: 200px; }
.maxw-220 { max-width: 220px; }
.maxw-240 { max-width: 240px; }
.maxw-260 { max-width: 260px; }
.maxw-280 { max-width: 280px; }
.maxw-360 { max-width: 360px; }
.maxw-640 { max-width: 640px; }
.mb-24 { margin-bottom: 24px; }
.ml-auto { margin-left: auto; }
.mt-12 { margin-top: 12px; }
.mt-16 { margin-top: 16px; }
.mt-20 { margin-top: 20px; }
.pt-8 { padding-top: 8px; }