:root {
    color-scheme: light;
    font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: #172033;
    background: #f4f6fa;
}
* { box-sizing: border-box; }
body { margin: 0; }
.topbar {
    min-height: 64px;
    padding: 0 5vw;
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: #fff;
    background: #18243b;
}
.topbar > div { display: flex; align-items: center; gap: 16px; }
.brand { color: #fff; font-size: 1.35rem; font-weight: 700; text-decoration: none; }
.topbar-link { color: #bcd7ff; font-weight: 700; text-decoration: none; }
.topbar-link:hover, .topbar-link:focus { color: #fff; }
.container { width: min(960px, 90vw); margin: 48px auto; }
.card {
    padding: 28px;
    border-radius: 16px;
    background: #fff;
    box-shadow: 0 12px 32px rgba(23, 32, 51, .08);
}
.login-card { width: min(440px, 100%); margin: 10vh auto; }
label { display: block; margin-top: 18px; font-weight: 600; }
input {
    width: 100%;
    margin-top: 7px;
    padding: 12px 14px;
    border: 1px solid #cbd2df;
    border-radius: 9px;
    font: inherit;
}
button, .button {
    display: inline-block;
    margin-top: 22px;
    padding: 12px 18px;
    border: 0;
    border-radius: 9px;
    color: #fff;
    background: #1769e0;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
}
.inline { display: inline; }
.link-button { margin: 0 0 0 14px; padding: 0; background: transparent; }
.alert { margin-bottom: 20px; padding: 12px 14px; border-radius: 8px; }
.alert-error { color: #8d1d1d; background: #ffe3e3; }
.alert-success { color: #17652b; background: #dff6e5; }
.footer { padding: 30px; color: #667085; text-align: center; }