:root {
    color-scheme: light;
    --navy: #123348;
    --blue: #1c6686;
    --pale: #eef5f7;
    --border: #cad8de;
    --danger: #a82d2d;
    --success: #216e45;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--pale); color: #17242b; }
.shell { width: min(100% - 2rem, 960px); margin: 0 auto; }
header { background: var(--navy); color: #fff; padding: 1rem 0; }
header .shell { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
header a { color: #fff; }
.nav { display: flex; align-items: center; gap: .8rem; }
.nav > a { font-weight: 650; }
main { padding: 3rem 0; }
.card { width: min(100%, 460px); margin: 0 auto; padding: 2rem; background: #fff; border: 1px solid var(--border); border-radius: 12px; box-shadow: 0 8px 24px rgb(18 51 72 / 8%); }
.dashboard { width: 100%; }
h1, h2 { color: var(--navy); margin-top: 0; }
header h1 { color: #fff; margin: 0; font-size: 1.25rem; }
label { display: block; margin: 1rem 0 .35rem; font-weight: 650; }
input, select { width: 100%; padding: .75rem; border: 1px solid #9eb1ba; border-radius: 6px; background: #fff; font: inherit; }
input:focus, select:focus { outline: 3px solid rgb(28 102 134 / 25%); border-color: var(--blue); }
button, .button { display: inline-block; margin-top: 1.25rem; padding: .75rem 1rem; border: 0; border-radius: 6px; background: var(--blue); color: #fff; font: inherit; font-weight: 650; cursor: pointer; text-decoration: none; }
.message { padding: .8rem 1rem; margin-bottom: 1rem; border-radius: 6px; }
.error { background: #fff0f0; color: var(--danger); border: 1px solid #e8b4b4; }
.success { background: #edf8f2; color: var(--success); border: 1px solid #afd3bf; }
.muted { color: #53666f; font-size: .92rem; }
.user { text-align: right; font-size: .9rem; }
form.inline { display: inline; }
form.inline button { margin: 0 0 0 .75rem; padding: .45rem .7rem; background: transparent; border: 1px solid #fff; }
.actions { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; }
.actions form { margin: 0; }
.actions button, .small-button { margin: 0; padding: .45rem .65rem; font-size: .88rem; }
.danger-button { background: var(--danger); }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; margin-top: 1rem; }
th, td { padding: .75rem; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
th { color: var(--navy); background: var(--pale); }
.badge { display: inline-block; padding: .18rem .45rem; border-radius: 999px; background: var(--pale); font-size: .8rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
footer { padding: 1rem 0 2rem; text-align: center; color: #60737c; font-size: .85rem; }

@media (max-width: 560px) {
    main { padding: 1.5rem 0; }
    .card { padding: 1.4rem; }
    header .shell { align-items: flex-start; }
    .form-row { grid-template-columns: 1fr; gap: 0; }
}