:root { --ink: #1b2430; --muted: #5b6676; --line: #d8dee6; --bg: #f6f8fa; --accent: #1f3a5f; }
* { box-sizing: border-box; }
body { margin: 0; font: 15px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif; color: var(--ink); background: var(--bg); }
header { display: flex; justify-content: space-between; align-items: center; padding: 12px 16px; background: var(--accent); color: #fff; }
header h1 { margin: 0; font-size: 18px; }
main { max-width: 960px; margin: 0 auto; padding: 16px; }
h2 { font-size: 16px; margin: 20px 0 8px; }
.card, form { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 12px 16px; }
label { display: block; margin: 8px 0; color: var(--muted); }
input { display: block; width: 100%; margin-top: 4px; padding: 8px; border: 1px solid var(--line); border-radius: 6px; font: inherit; }
button { padding: 7px 12px; border: 1px solid var(--accent); background: #fff; color: var(--accent); border-radius: 6px; cursor: pointer; font: inherit; }
form button[type=submit], header button { background: var(--accent); color: #fff; }
header button { border-color: #fff; }
.toolbar { display: flex; gap: 12px; align-items: end; margin: 16px 0 8px; }
.toolbar label { flex: 1; margin: 0; }
table { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--line); }
th, td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--line); vertical-align: top; overflow-wrap: anywhere; }
td button { margin: 2px; padding: 3px 8px; }
.msg { color: var(--muted); min-height: 1.5em; margin: 6px 0 0; }
@media (max-width: 600px) { th:nth-child(3), td:nth-child(3) { display: none; } }