:root {
    --bg: #0d1117; --panel: #161b22; --card: #21262d; --border: #30363d;
    --text: #f0f3f6; --muted: #9aa4b2; --blue: #2f81f7; --green: #3fb950; --red: #f85149; --orange: #d29922;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; background: var(--bg); color: var(--text);
    font-family: "Segoe UI", system-ui, -apple-system, sans-serif; }
h1 { font-size: 1.4rem; margin: 0 0 .25rem; }
a { color: var(--blue); text-decoration: none; }

.app-shell { min-height: 100%; }
.topbar { display: flex; align-items: center; gap: 1rem; padding: .6rem 1.2rem; background: var(--panel);
    border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 10; }
.brand { font-weight: 800; letter-spacing: .5px; color: var(--blue); }
.nav { display: flex; gap: .25rem; }
.nav a { padding: .35rem .8rem; border-radius: 6px; color: var(--muted); }
.nav a.active, .nav a:hover { color: var(--text); background: var(--card); }
.spacer { flex: 1; }
.who { color: var(--muted); font-size: .9rem; margin-right: .5rem; }
.content { max-width: 900px; margin: 0 auto; padding: 1.5rem 1.2rem; }
.hint, .sub2 { color: var(--muted); font-size: .9rem; }
.sub2 { margin-bottom: .6rem; text-transform: uppercase; letter-spacing: .4px; font-size: .75rem; }

.panel { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 1rem 1.2rem; margin: 1rem 0; }
.row { display: flex; align-items: end; gap: .8rem; flex-wrap: wrap; }
label { display: block; color: var(--muted); font-size: .8rem; margin-bottom: .25rem; }
input { background: var(--card); border: 1px solid var(--border); color: var(--text);
    border-radius: 6px; padding: .5rem .6rem; font-size: 1rem; outline: none; }
input:focus { border-color: var(--blue); }
input.pn { width: 220px; font-family: Consolas, monospace; }
input.num { width: 120px; font-family: Consolas, monospace; text-align: right; }

button { cursor: pointer; font-size: .95rem; border-radius: 6px; border: 1px solid transparent; padding: .5rem 1rem; }
button.primary { background: var(--blue); color: #fff; font-weight: 600; }
button.primary:hover { filter: brightness(1.08); }
button.big { width: 100%; margin-top: 1rem; padding: .7rem; font-size: 1.05rem; }
.link-btn { background: none; border: none; color: var(--blue); padding: .25rem .5rem; }
.link-btn.danger { color: var(--red); }

table.grid { width: 100%; border-collapse: collapse; }
.grid th { text-align: left; color: var(--muted); font-size: .78rem; text-transform: uppercase;
    letter-spacing: .4px; padding: .5rem .6rem; border-bottom: 1px solid var(--border); }
.grid td { padding: .45rem .6rem; border-bottom: 1px solid var(--border); }
.grid td.pt { font-weight: 600; }
.grid td.ref { font-family: Consolas, monospace; color: var(--muted); }

.result { text-align: center; padding: 1.5rem; }
.result .code { font-family: Consolas, monospace; font-size: 3rem; font-weight: 800; color: var(--green); letter-spacing: 3px; }
.result .note { color: var(--muted); font-size: .85rem; margin-top: .4rem; }

.err { color: var(--red); font-size: .9rem; margin: .5rem 0 0; }
.ok { color: var(--green); font-size: .9rem; margin: .5rem 0 0; }

.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: .8rem 1rem; align-items: end; }
.form-actions { grid-column: 1 / -1; }

/* login */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; }
.card.login { width: 340px; display: flex; flex-direction: column; gap: .35rem; }
.login-brand { font-size: 1.8rem; font-weight: 800; color: var(--blue); text-align: center; }
.card.login .sub { text-align: center; color: var(--muted); margin: 0 0 .8rem; }
.card.login input { width: 100%; }
.card.login button { margin-top: 1rem; }

/* manufacturer chips (allowed manufacturers, top of generate page) */
.mfr-chips { display: flex; gap: .5rem; flex-wrap: wrap; margin: .2rem 0 1rem; }
.chip { background: var(--card); border: 1px solid var(--border); color: var(--muted); border-radius: 999px; padding: .35rem 1rem; font-weight: 600; }
.chip.on { background: var(--blue); color: #fff; border-color: var(--blue); }
.chip:hover { color: var(--text); }

/* the "Ngarko" control = a file-upload label styled as a primary button */
.btn-file { cursor: pointer; background: var(--blue); color: #fff;
    font-weight: 600; font-size: .95rem; border: 1px solid transparent; border-radius: 6px; }
.btn-file:hover { filter: brightness(1.08); }

/* keep the input, the Importo button and the Ngarko label on ONE line, same height/baseline */
.genrow { align-items: center; }
.row .primary, .row .btn-file {
    height: 38px; box-sizing: border-box; padding: 0 1.1rem; margin: 0;
    display: inline-flex; align-items: center; justify-content: center; line-height: 1; vertical-align: middle;
}
.row .pn { height: 38px; box-sizing: border-box; margin: 0; }

/* upload */
.upload { display: inline-flex; align-items: center; }
.upload .link-btn { cursor: pointer; }

/* PN picker modal */
.modal-backdrop { position: fixed; inset: 0; background: rgba(0,0,0,.55); display: flex; align-items: center; justify-content: center; z-index: 50; }
.modal { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 1.2rem; width: 560px; max-width: 94vw; max-height: 84vh; display: flex; flex-direction: column; gap: .6rem; }
.pn-list { overflow-y: auto; max-height: 56vh; display: flex; flex-direction: column; gap: 3px; border: 1px solid var(--border); border-radius: 8px; padding: .35rem; }
.pn-pick { display: flex; justify-content: space-between; align-items: center; background: var(--card); border: 1px solid transparent; color: var(--text); text-align: left; font-family: Consolas, monospace; padding: .5rem .7rem; }
.pn-pick:hover { border-color: var(--blue); }

/* bench-report rows: PN large on top, details on a second line (readable) */
.rep-pick { display: flex; flex-direction: column; align-items: flex-start; gap: 3px; width: 100%;
    background: var(--card); border: 1px solid transparent; border-radius: 8px; padding: .6rem .8rem; color: var(--text); text-align: left; cursor: pointer; }
.rep-pick:hover { border-color: var(--blue); }
.rep-pn { font-family: Consolas, monospace; font-size: 1.15rem; font-weight: 700; letter-spacing: .5px; }
.rep-meta { font-size: .85rem; color: var(--muted); }
.pn-item { display: flex; align-items: center; gap: .5rem; padding: .2rem .3rem; font-family: Consolas, monospace; }
.pn-item input { margin: 0; }

/* rights editor */
.rights .mfr-block { border: 1px solid var(--border); border-radius: 8px; padding: .7rem .9rem; margin: .6rem 0; }
.mfr-head { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }
.rb { display: inline-flex; align-items: center; gap: .3rem; color: var(--text); font-size: .9rem; margin: 0; }
.rb input { margin: 0; }
.mfr-checks { display: flex; gap: 1rem; flex-wrap: wrap; padding-top: .3rem; }

@media (max-width: 640px) { .form-grid { grid-template-columns: 1fr; } .content { padding: 1rem .8rem; } }