:root { color-scheme: light; font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; color: #172033; background: #f3f6fb; }
* { box-sizing: border-box; }
body { margin: 0; min-width: 320px; }
.shell { max-width: 1180px; margin: 0 auto; padding: 32px 20px 64px; }
.card { background: #fff; border: 1px solid #e1e7f0; border-radius: 16px; padding: 22px; box-shadow: 0 8px 24px rgba(28, 49, 86, .06); }
.narrow { max-width: 430px; margin: 12vh auto 0; }
.topbar, .section-heading, .session { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
h1, h2, p { margin-top: 0; } h1 { margin-bottom: 8px; font-size: 28px; } h2 { margin-bottom: 0; font-size: 19px; }
.eyebrow { margin-bottom: 8px; color: #566be8; font-size: 12px; font-weight: 800; letter-spacing: .12em; }
.muted { color: #6c7890; font-size: 14px; }
.stack { display: grid; gap: 14px; } .compact { gap: 8px; margin-top: 16px; }
label { display: grid; gap: 6px; font-size: 13px; font-weight: 700; }
input { width: 100%; border: 1px solid #ccd5e3; border-radius: 9px; padding: 11px 12px; font: inherit; background: #fff; }
button { border: 0; border-radius: 9px; padding: 10px 14px; color: #fff; background: #566be8; cursor: pointer; font: inherit; font-weight: 700; }
button:hover { background: #4055d2; } button:disabled { opacity: .55; cursor: wait; }
button.secondary { color: #41506b; background: #eef2f8; } button.danger { color: #a62f3b; background: #fff0f1; padding: 7px 10px; }
.inline-form { display: grid; grid-template-columns: 1fr 1.3fr auto; gap: 8px; margin: 18px 0; }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 24px; }
.full-width { grid-column: 1 / -1; }
.list { display: grid; gap: 8px; margin-top: 14px; }
.list-item { display: flex; align-items: center; justify-content: space-between; gap: 12px; border: 1px solid #e5eaf2; border-radius: 10px; padding: 11px 12px; }
.list-item strong, .list-item small { display: block; } .list-item small { color: #718097; margin-top: 3px; }
.selected { border-color: #566be8; background: #f2f4ff; }
.error { min-height: 20px; color: #bd3040; font-size: 14px; } .warning { color: #8a5b00; font-size: 13px; }
.table-wrap { overflow-x: auto; margin-top: 14px; } table { width: 100%; border-collapse: collapse; font-size: 13px; } th, td { padding: 10px; border-bottom: 1px solid #e5eaf2; text-align: left; white-space: nowrap; } th { color: #63718a; }
@media (max-width: 760px) { .grid { grid-template-columns: 1fr; } .full-width { grid-column: auto; } .topbar { align-items: flex-start; flex-direction: column; } .inline-form { grid-template-columns: 1fr; } .session { width: 100%; justify-content: space-between; } }