:root {
    --bg: #0f1226;
    --card: #1a1d3a;
    --fg: #e9ecff;
    --muted: #9aa0c5;
    --accent: #6c8cff;
    --good: #25c26b;
    --bad: #ff5d6c;
    --warn: #ffb454;
}
* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
    background: var(--bg);
    color: var(--fg);
    min-height: 100vh;
}
header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 16px 20px; border-bottom: 1px solid #2a2f5a;
    gap: 16px; flex-wrap: wrap;
}
header nav { display: flex; gap: 12px; }
header nav a {
    color: var(--muted); text-decoration: none; padding: 4px 10px; border-radius: 6px;
}
header nav a.active, header nav a:hover { color: var(--fg); background: #2a2f5a; }
h1 { font-size: 1.2rem; margin: 0; }
main { max-width: 720px; margin: 0 auto; padding: 16px; }
.card {
    background: var(--card); border-radius: 12px; padding: 20px; margin-bottom: 16px;
    box-shadow: 0 4px 20px rgba(0,0,0,.25);
}
.hidden { display: none !important; }
form label { display: block; margin-bottom: 12px; }
input[type="email"], input[type="password"], input[type="text"], input[type="date"] {
    width: 100%; padding: 8px 10px; border-radius: 8px; border: 1px solid #3a3f6e;
    background: #11142b; color: var(--fg); font-size: 1rem; margin-top: 4px;
}
button {
    padding: 8px 14px; border-radius: 8px; border: 0;
    background: var(--accent); color: white; font-weight: 600; cursor: pointer;
}
button:disabled { opacity: .5; cursor: not-allowed; }
button.secondary { background: #3a3f6e; }
.row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-top: 8px; }
.row label { display: flex; align-items: center; gap: 6px; margin: 0; }
.error { color: var(--bad); min-height: 1.2em; }
.result {
    margin-top: 16px; padding: 14px; border-radius: 10px;
    border-left: 6px solid var(--accent);
    background: #11142b;
}
.result.valid     { border-color: var(--good); }
.result.duplicate { border-color: var(--warn); }
.result.invalid   { border-color: var(--bad); }
.result h3 { margin: 0 0 6px; }
.result .big-name {
    font-size: 1.8rem; font-weight: 700; margin: 6px 0 8px;
}
.days-line { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 4px; }
.day-chip {
    background: #2a2f5a; color: var(--fg); border-radius: 999px;
    padding: 4px 12px; font-size: .95rem; font-weight: 600;
}
.day-chip.today {
    background: var(--accent); color: white;
    box-shadow: 0 0 0 2px rgba(108,140,255,.35);
}
.day-chip.none { background: transparent; color: var(--muted); padding-left: 0; }
.days-meta { font-size: .9rem; color: var(--muted); margin-bottom: 8px; }
.days-meta .ok   { color: var(--good); font-weight: 700; }
.days-meta .warn { color: var(--bad);  font-weight: 700; }
.result dl { display: grid; grid-template-columns: max-content 1fr; gap: 4px 12px; margin: 8px 0; }
.result dt { color: var(--muted); }
#reader { width: 100%; max-width: 480px; margin: 0 auto; }
.manual { display: flex; align-items: center; gap: 6px; margin-left: auto; }
.manual input { width: auto; min-width: 240px; }
hr { border: 0; border-top: 1px solid #2a2f5a; margin: 18px 0; }

/* --- Session picker bar (scanner) --- */
.session-bar { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; padding: 10px 12px; background: #11142b; border: 1px solid #2a2f5a; border-radius: 8px; }
.session-bar select { padding: 6px 8px; border-radius: 6px; border: 1px solid #3a3f6e; background: #1a1d3a; color: var(--fg); font-size: 0.95rem; min-width: 220px; }
.session-bar .session-active { color: var(--accent); }
.session-bar .muted { color: var(--muted); }