/* One stylesheet for every screen: light by default, dark from the system
   theme, and one phone-width layout. System fonts only; nothing is loaded
   from another host. */
:root {
  --bg: #f2f5f4; --surface: #ffffff; --sunk: #e8edeb; --ink: #15211f; --muted: #586764;
  --line: #d4dcd9; --line-strong: #a9b6b2;
  --accent: #0b6b62; --accent-ink: #ffffff; --accent-soft: #dbeeea;
  --bar-bg: #12302c; --bar-ink: #e8f1ee; --bar-muted: #a3bbb5;
  --ok: #1b7443; --ok-soft: #def2e5; --warn: #855600; --warn-soft: #fbeecb; --bad: #a5251b; --bad-soft: #fbe4e0;
  --font-ui: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --font-num: ui-monospace, Menlo, Consolas, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1413; --surface: #161e1c; --sunk: #1e2927; --ink: #e6ecea; --muted: #9aaaa6;
    --line: #2b3835; --line-strong: #4a5b56;
    --accent: #52c4b4; --accent-ink: #05211d; --accent-soft: #16352f;
    --bar-bg: #090f0e; --bar-ink: #e8f1ee; --bar-muted: #8fa7a1;
    --ok: #6fd198; --ok-soft: #153223; --warn: #f0c060; --warn-soft: #3a2c0c; --bad: #ff9b8f; --bad-soft: #3d1a16;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 15px/1.5 var(--font-ui); overflow-x: hidden; }
a { color: var(--accent); text-underline-offset: 2px; }
h1 { font-size: 24px; line-height: 1.2; margin: 0 0 16px; }
h2 { font-size: 16px; line-height: 1.3; margin: 24px 0 8px; }
p { margin: 0 0 10px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* Header: one bar at the top of the page for every role. */
header { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 24px; padding: 10px 24px;
  background: var(--bar-bg); color: var(--bar-ink); }
header > span:first-child { font-weight: 700; }
header nav { display: flex; flex-wrap: wrap; gap: 4px 16px; flex: 1; }
header nav a { color: var(--bar-ink); text-decoration: none; padding: 4px 0; border-bottom: 2px solid transparent; }
header nav a:hover { border-bottom-color: var(--bar-ink); }
header p { margin: 0; color: var(--bar-muted); font-size: 13px; }
header form { margin: 0; }
header button { color: var(--bar-ink); background: transparent; border-color: var(--bar-muted); }

main { max-width: 960px; margin: 0 auto; padding: 24px; }
section { background: var(--surface); border: 1px solid var(--line); border-radius: 8px; padding: 16px; margin-bottom: 16px; }
section h2 { margin-top: 0; }

/* Lists of orders and totals. */
main ul { padding: 0; list-style: none; margin: 0 0 16px; }
main li { padding: 8px 0; border-bottom: 1px solid var(--line); }
main li:last-child { border-bottom: 0; }
main li a { margin-left: 8px; }

/* Tables scroll sideways inside their own box. */
table { display: block; max-width: 100%; overflow-x: auto; border-collapse: collapse; margin: 0 0 16px;
  background: var(--surface); border: 1px solid var(--line); border-radius: 8px; }
th, td { padding: 8px 12px; text-align: left; border-bottom: 1px solid var(--line); white-space: nowrap; }
th { font-size: 13px; color: var(--muted); font-weight: 600; background: var(--sunk); }
td { font-variant-numeric: tabular-nums; }
tbody tr:last-child td { border-bottom: 0; }

/* Forms and buttons. */
form { margin: 0 0 16px; }
fieldset { border: 1px solid var(--line); border-radius: 8px; padding: 12px 16px; margin: 0 0 12px; background: var(--surface); }
legend { font-weight: 600; padding: 0 4px; }
label { display: block; margin: 6px 0 2px; font-size: 13px; color: var(--muted); }
input, select { font: inherit; color: var(--ink); background: var(--bg); border: 1px solid var(--line-strong);
  border-radius: 4px; padding: 6px 8px; max-width: 100%; }
button { font: inherit; font-weight: 600; cursor: pointer; padding: 6px 14px; border-radius: 4px;
  border: 1px solid var(--accent); background: var(--accent); color: var(--accent-ink); }
/* The order form: a supplement's price and margin per unit side by side. */
.price-pair { display: flex; flex-wrap: wrap; gap: 0 16px; }
#money-split p { display: flex; justify-content: space-between; max-width: 360px; margin: 0 0 4px; }
#money-split span { font-family: var(--font-num); font-variant-numeric: tabular-nums; }
form > button { margin-right: 8px; }
li form { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 8px; margin: 8px 0 0; }

[role="status"] { color: var(--ok); background: var(--ok-soft); border-left: 4px solid var(--ok);
  border-radius: 4px; padding: 8px 12px; }
[role="alert"] { color: var(--bad); background: var(--bad-soft); border-left: 4px solid var(--bad);
  border-radius: 4px; padding: 8px 12px; }

/* Status pills: shape and text, not colour alone. */
.pill { display: inline-flex; align-items: center; gap: 6px; padding: 2px 10px 2px 8px; border-radius: 999px;
  font-size: 12.5px; font-weight: 600; border: 1px solid currentColor; white-space: nowrap; }
.pill::before { content: ""; width: 9px; height: 9px; border-radius: 50%; border: 1.5px solid currentColor; flex: none; }
.pill-draft { color: var(--muted); border-style: dashed; }
.pill-awaiting-payment { color: var(--warn); background: var(--warn-soft); }
.pill-awaiting-payment::before { background: linear-gradient(90deg, currentColor 50%, transparent 50%); }
.pill-paid { color: var(--ok); background: var(--ok-soft); }
.pill-paid::before { background: currentColor; }

@media (max-width: 620px) {
  header { flex-direction: column; align-items: flex-start; padding: 10px 16px; }
  header nav { flex: none; }
  main { padding: 16px; }
  section { padding: 12px; }
  .price-pair { flex-direction: column; }
}