* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont,
                 "Segoe UI", sans-serif;
    color: #182333;
    background: #f3f6fa;
}
.login-container {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 24px;
}
.login-card {
    width: 100%;
    max-width: 420px;
    background: #fff;
    border-radius: 14px;
    padding: 36px;
    box-shadow: 0 12px 40px rgba(16, 33, 58, .09);
}
.brand-icon {
    display: grid;
    place-items: center;
    width: 48px;
    height: 48px;
    margin-bottom: 18px;
    border-radius: 12px;
    color: white;
    background: #2454a6;
    font-weight: 700;
    font-size: 25px;
}
h1 { font-size: 26px; margin: 0 0 8px; }
.subtitle { color: #657284; margin: 0 0 28px; }
label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    margin: 18px 0 7px;
}
input {
    width: 100%;
    padding: 12px;
    font: inherit;
    border: 1px solid #c7d1df;
    border-radius: 8px;
}
input:focus-visible, button:focus-visible {
    outline: 3px solid #a5c3fa;
    outline-offset: 2px;
}
button {
    border: 0;
    cursor: pointer;
    font: inherit;
    font-weight: 600;
    background: #2454a6;
    color: white;
    border-radius: 8px;
    padding: 13px 18px;
}
.login-card button { width: 100%; margin-top: 26px; }
button:hover { background: #1a4083; }
.error-message {
    border-radius: 8px;
    padding: 12px;
    color: #8e2929;
    background: #fff0f0;
}
.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 30px;
    background: white;
    border-bottom: 1px solid #dce3ee;
}
.logout-button { padding: 9px 15px; }
.dashboard { padding: 40px; max-width: 1100px; margin: auto; }
.dashboard p { color: #536174; }