:root {
    --ink: #1b2430;
    --muted: #5b6676;
    --line: #d5dbe3;
    --paper: #ffffff;
    --back: #f3f5f8;
    --accent: #1f5fa8;
    --danger: #a32020;
    --warn-back: #fff6dc;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    padding: 24px 16px;
    background: var(--back);
    color: var(--ink);
    font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

main {
    max-width: 440px;
    margin: 0 auto;
    padding: 28px 24px;
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: 10px;
}

header { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; }
header .logo { flex: none; width: 40px; height: auto; }
header .brand { flex: 1; min-width: 0; }
header strong { font-size: 22px; letter-spacing: .3px; }
header .brand span { display: block; color: var(--muted); font-size: 13px; }

/* EN | ES, like Booking's login: English by default, the choice kept in a cookie. */
.lang { display: flex; flex: none; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.lang a { padding: 5px 10px; font-size: 13px; font-weight: 600; color: var(--muted); text-decoration: none; }
.lang a + a { border-left: 1px solid var(--line); }
.lang a.on { color: #fff; background: var(--accent); }
.lang a:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }

h1 { font-size: 19px; margin: 0 0 12px; }
p { margin: 0 0 12px; }
.muted { color: var(--muted); font-size: 14px; }

label { display: block; margin: 14px 0 4px; font-weight: 600; font-size: 14px; }

input[type=text], input[type=password] {
    width: 100%;
    padding: 10px 12px;
    font: inherit;
    border: 1px solid var(--line);
    border-radius: 6px;
}

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

button {
    width: 100%;
    margin-top: 18px;
    padding: 11px 14px;
    font: inherit;
    font-weight: 600;
    color: #fff;
    background: var(--accent);
    border: 0;
    border-radius: 6px;
    cursor: pointer;
}

button.secondary { color: var(--ink); background: #e6eaf0; margin-top: 10px; }

.error { color: var(--danger); font-weight: 600; }

.notice {
    padding: 12px 14px;
    background: var(--warn-back);
    border: 1px solid #ecd58a;
    border-radius: 6px;
    font-size: 14px;
}

.qr { margin: 12px 0; text-align: center; }
.qr svg { width: 200px; height: 200px; }

code, .codes {
    font-family: ui-monospace, Consolas, monospace;
    font-size: 15px;
    word-break: break-all;
}

.codes { columns: 2; padding: 12px 14px; background: var(--back); border-radius: 6px; list-style: none; margin: 12px 0; }
.codes li { padding: 2px 0; }

dl { margin: 12px 0; }
dt { font-size: 13px; color: var(--muted); }
dd { margin: 0 0 10px; font-weight: 600; }