:root { --fg: #1d2733; --muted: #5b6875; --accent: #0b5cad; --bg: #f6f8fa; --card: #fff; --line: #d8dee4; }
* { box-sizing: border-box; }
body { margin: 0; font: 15px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif; color: var(--fg); background: var(--bg); }
.top { display: flex; justify-content: space-between; align-items: center; padding: 12px 16px; background: var(--card); border-bottom: 1px solid var(--line); }
.brand { font-weight: 700; color: var(--accent); text-decoration: none; }
nav a { margin-left: 16px; color: var(--fg); }
main { max-width: 920px; margin: 0 auto; padding: 16px; }
footer { max-width: 920px; margin: 24px auto; padding: 0 16px; color: var(--muted); font-size: 13px; }
.grid { width: 100%; border-collapse: collapse; background: var(--card); }
.grid th, .grid td { padding: 8px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
input[type=number] { width: 4.5em; }
fieldset { margin-top: 16px; background: var(--card); border: 1px solid var(--line); padding: 12px; display: grid; gap: 8px; }
label { display: grid; gap: 2px; }
button { background: var(--accent); color: #fff; border: 0; padding: 8px 14px; border-radius: 4px; cursor: pointer; }
button.secondary { background: #6b7785; }
form.inline { display: inline-block; margin-right: 8px; }
.error { background: #fdecea; color: #8a1c13; padding: 8px 12px; border-radius: 4px; }
.status { display: inline-block; padding: 4px 10px; border-radius: 12px; background: #e8eef5; font-weight: 600; }
.status-fulfilled, .status-paid { background: #e3f4e8; color: #17602e; }
.status-payment_failed, .status-cancelled { background: #fdecea; color: #8a1c13; }
@media (max-width: 600px) { .grid th:nth-child(3), .grid td:nth-child(3) { display: none; } }