/* Dark by default. The portal is opened on a phone, often at night, often on a
   metered connection — so this is one small stylesheet with no webfont. */
:root {
  --bg: #0e1218;
  --surface: #161b23;
  --line: #262d38;
  --ink: #e5e9f0;
  --muted: #8a94a4;
  --accent: #4f8cff;
  --ok: #4fbf95;
  --warn: #e0a272;
  --bad: #ff7a7a;
  --radius: 10px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f6f7f9;
    --surface: #ffffff;
    --line: #dce1e9;
    --ink: #161a22;
    --muted: #626d7e;
    --accent: #2f5fe0;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  /* Noto Sans Bengali is named explicitly: without it, Bengali text falls back
     to whatever the device has and often renders with broken conjuncts. */
  font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans Bengali", sans-serif;
  padding-bottom: env(safe-area-inset-bottom);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
  background: var(--surface);
  flex-wrap: wrap;
}
.brand { font-weight: 700; color: var(--ink); text-decoration: none; }
.nav nav { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.nav a { color: var(--muted); text-decoration: none; font-size: 14px; }
.nav a:hover, .nav a:focus-visible { color: var(--ink); }
.nav .lang { color: var(--accent); }

main { max-width: 640px; margin: 0 auto; padding: 20px 18px 48px; }
main.narrow { max-width: 420px; }

h1 { font-size: 22px; margin: 0 0 16px; }
h2 { font-size: 17px; margin: 0 0 8px; }
h3 { font-size: 15px; margin: 16px 0 6px; }

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  margin-bottom: 16px;
}

.row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin: 10px 0; }
.label { font-size: 12px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.muted { color: var(--muted); font-size: 14px; }
.hint { color: var(--muted); font-size: 13px; margin: 10px 0 0; }

code {
  font-family: ui-monospace, "Cascadia Mono", Consolas, monospace;
  font-size: 14px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 6px 9px;
  word-break: break-all;
  display: inline-block;
}

.copyrow { display: flex; gap: 8px; align-items: stretch; margin: 6px 0 4px; }
.copyrow code { flex: 1; }

button, .button {
  font: inherit;
  cursor: pointer;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--ink);
  border-radius: 8px;
  padding: 10px 14px;
  text-decoration: none;
  display: inline-block;
  text-align: center;
}
button:hover, .button:hover { border-color: var(--muted); }
button:focus-visible, .button:focus-visible, a:focus-visible, input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.primary { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }

/* The IP button is the most-tapped control in the product, usually one-handed
   on a phone, so it gets a full-width target. */
.big { width: 100%; padding: 15px; font-size: 17px; margin-top: 6px; }

.linkish { background: none; border: none; color: var(--muted); padding: 0; font-size: 14px; }
.inline { display: inline; }

label { display: block; font-size: 13px; color: var(--muted); margin: 12px 0 5px; }
input {
  width: 100%;
  font: inherit;
  padding: 11px 12px;
  background: var(--bg);
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 8px;
}
form.card button { width: 100%; margin-top: 18px; }

.pill {
  font-size: 12px;
  padding: 3px 9px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--muted);
}
.pill.ok { color: var(--ok); border-color: var(--ok); }
.pill.bad { color: var(--bad); border-color: var(--bad); }
.pill.warn { color: var(--warn); border-color: var(--warn); }

.flash {
  padding: 11px 14px;
  border-radius: 8px;
  margin-bottom: 14px;
  border: 1px solid var(--line);
  font-size: 14px;
}
.flash.ok { border-color: var(--ok); color: var(--ok); }
.flash.error { border-color: var(--bad); color: var(--bad); }
.flash.warn { border-color: var(--warn); color: var(--warn); }

.stats { display: flex; flex-wrap: wrap; gap: 18px; margin: 16px 0 0; }
.stats div { margin: 0; }
.stats dt { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; }
.stats dd { margin: 3px 0 0; font-size: 18px; font-variant-numeric: tabular-nums; }

.tenants { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.tenants li { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }

ol { padding-left: 20px; }
ol li { margin: 6px 0; color: var(--muted); font-size: 14px; }

footer {
  display: flex;
  justify-content: space-between;
  max-width: 640px;
  margin: 0 auto;
  padding: 18px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}

/* Plan picker: the whole row is the tap target. */
label.choice {
  display: flex; gap: 12px; align-items: flex-start;
  border: 1px solid var(--line); border-radius: 8px;
  padding: 12px; margin: 8px 0; color: var(--ink); font-size: 15px; cursor: pointer;
}
label.choice input { width: auto; margin-top: 3px; }
label.choice:has(input:checked) { border-color: var(--accent); }
.choice-body { flex: 1; }
.price { float: right; font-weight: 600; font-variant-numeric: tabular-nums; }
.paylist { list-style: none; padding: 0; margin: 0; }
.paylist li { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin: 8px 0; }
select {
  width: 100%; font: inherit; padding: 11px 12px;
  background: var(--bg); color: var(--ink);
  border: 1px solid var(--line); border-radius: 8px;
}
.center { text-align: center; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
td { padding: 8px 4px; border-top: 1px solid var(--line); vertical-align: top; }