:root {
    --bg: #f3f5f8;
    --card: #ffffff;
    --text: #13202f;
    --muted: #5d6b7c;
    --primary: #0b4f8a;
    --primary-dark: #083a66;
    --border: #d8dee6;
    --error: #b42318;
    --error-bg: #fdecea;
    --success: #127a3e;
    --success-bg: #e7f6ec;
    --info-bg: #e8f1fb;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
}

body.centered {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 16px;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 24px;
    background: var(--primary-dark);
    color: #fff;
}

.topbar nav { display: flex; gap: 20px; align-items: center; }
.topbar nav a, .topbar .link { color: #fff; text-decoration: none; font: inherit; }
.topbar form { margin: 0; }

.brand { font-weight: 700; font-size: 1.3rem; color: inherit; text-decoration: none; margin: 0; }
.brand span { font-weight: 300; }
.login .brand { color: var(--primary-dark); }

.page {
    max-width: 760px;
    margin: 24px auto;
    padding: 0 16px;
    display: grid;
    gap: 16px;
}

.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 24px;
}

.login { width: 100%; max-width: 380px; }

h1 { margin: 4px 0 8px; font-size: 1.5rem; }
h2 { margin: 0 0 12px; font-size: 1.1rem; }
.muted { color: var(--muted); margin: 4px 0; }
.mono { font-family: ui-monospace, "Cascadia Mono", Consolas, monospace; }
.saldo { font-size: 2rem; font-weight: 700; margin: 4px 0 20px; }

label { display: block; margin: 14px 0 6px; font-weight: 600; font-size: .9rem; }

input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font: inherit;
}

input:focus { outline: 2px solid var(--primary); outline-offset: 1px; }

button, .button {
    display: inline-block;
    border: 0;
    border-radius: 6px;
    padding: 10px 18px;
    font: inherit;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
}

.primary { background: var(--primary); color: #fff; margin-top: 20px; }
.primary:hover { background: var(--primary-dark); }
.link { background: none; padding: 0; cursor: pointer; }

.alert { padding: 10px 14px; border-radius: 6px; margin: 12px 0; }
.alert.error { background: var(--error-bg); color: var(--error); }
.alert.success { background: var(--success-bg); color: var(--success); font-weight: 600; }
.alert.info { background: var(--info-bg); color: var(--primary-dark); }

.field-error { color: var(--error); font-size: .85rem; margin: 6px 0 0; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--border); font-size: .9rem; }
.num { text-align: right; font-variant-numeric: tabular-nums; }

dl { display: grid; grid-template-columns: max-content 1fr; gap: 8px 16px; }
dt { color: var(--muted); }
dd { margin: 0; font-weight: 600; }