:root {
  --bg: #f4f5f7;
  --surface: #fff;
  --text: #1c2230;
  --muted: #667085;
  --border: #d9dde5;
  --accent: #2457d6;
  --topbar: #1c2230;
  --topbar-text: #f4f5f7;
  --danger: #b00020;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12151c;
    --surface: #1b202a;
    --text: #e8ebf2;
    --muted: #98a2b3;
    --border: #2d3442;
    --accent: #6d94f5;
    --topbar: #0c0f14;
    --danger: #ff8a9b;
  }
}

* { box-sizing: border-box; }
body { font-family: system-ui, sans-serif; background: var(--bg); color: var(--text); margin: 0; }
h1 { font-size: 1.3rem; margin-top: 0; }

/* Pagine a scheda centrata (login, errori) */
body.centered { display: grid; place-items: center; min-height: 100vh; }
.card { background: var(--surface); padding: 2rem; border-radius: 8px; box-shadow: 0 2px 8px #0002; width: min(360px, 90vw); }
label { display: block; margin: 1rem 0 .3rem; font-size: .9rem; }
input, textarea { width: 100%; font: inherit; padding: .55rem; border: 1px solid var(--border); border-radius: 4px; background: var(--bg); color: var(--text); }
.btn { display: inline-block; padding: .6rem 1rem; border: 0; border-radius: 4px; background: var(--accent); color: #fff; cursor: pointer; text-decoration: none; font: inherit; line-height: 1.2; }
.card form .btn { margin-top: 1.2rem; }
.err { color: var(--danger); background: #b0002015; padding: .6rem; border-radius: 4px; }

/* Topbar */
.topbar { display: flex; align-items: center; gap: 1.5rem; padding: 0 1rem; height: 52px; background: var(--topbar); color: var(--topbar-text); }
.topbar .brand { font-weight: 600; font-size: 1.05rem; white-space: nowrap; }
.topbar .spacer { flex: 1; }

/* Menu a tendina (progetti e sistema) */
.dropdown { position: relative; }
.dropdown summary { list-style: none; cursor: pointer; padding: .4rem .7rem; border-radius: 4px; display: flex; align-items: center; gap: .5rem; white-space: nowrap; }
.dropdown summary::-webkit-details-marker { display: none; }
.dropdown summary:hover, .dropdown[open] summary { background: #ffffff1f; }
.dropdown summary::after { content: "▾"; font-size: .8em; }
.dropdown .menu { position: absolute; right: 0; top: calc(100% + 6px); min-width: 210px; background: var(--surface); color: var(--text); border: 1px solid var(--border); border-radius: 6px; box-shadow: 0 6px 20px #0003; padding: .3rem 0; z-index: 10; }
.dropdown .menu .who { padding: .5rem 1rem; font-size: .8rem; color: var(--muted); border-bottom: 1px solid var(--border); margin-bottom: .3rem; }
.dropdown .menu a, .dropdown .menu button { display: block; width: 100%; text-align: left; padding: .5rem 1rem; color: inherit; text-decoration: none; background: none; border: 0; font: inherit; cursor: pointer; }
.dropdown .menu a:hover, .dropdown .menu button:hover { background: var(--bg); }
.dropdown .menu hr { border: 0; border-top: 1px solid var(--border); margin: .3rem 0; }
.dropdown .menu form { margin: 0; }
.projmenu .menu { left: 0; right: auto; min-width: 260px; max-width: 90vw; padding-bottom: 0; }
.projmenu summary .lbl { font-size: .8rem; color: #aab2c5; }
.projmenu summary strong { font-weight: 600; max-width: 220px; overflow: hidden; text-overflow: ellipsis; }
.proj-list { list-style: none; margin: 0; padding: 0; max-height: 260px; overflow-y: auto; }
.proj-list button[aria-current="true"] { font-weight: 600; background: var(--bg); }
.proj-list button[aria-current="true"]::after { content: " ✓"; color: var(--accent); }
.proj-empty { padding: .6rem 1rem; color: var(--muted); }
.menu a.proj-add { border-top: 1px solid var(--border); margin-top: .3rem; padding: .7rem 1rem; font-weight: 600; color: var(--accent); }

/* Contenuto */
main { max-width: 1100px; margin: 0 auto; padding: 1.5rem 1rem; }
.muted { color: var(--muted); }

/* Tabelle, form e messaggi */
.page-head { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: 1rem; }
.page-head h1 { margin: 0; }
.table-wrap { overflow-x: auto; background: var(--surface); border: 1px solid var(--border); border-radius: 8px; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: .65rem .9rem; text-align: left; border-bottom: 1px solid var(--border); vertical-align: middle; }
tbody tr:last-child td { border-bottom: 0; }
th { font-size: .8rem; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); }
.num { text-align: right; }
.actions { display: flex; gap: .4rem; justify-content: flex-end; flex-wrap: wrap; }
.actions form { margin: 0; }
.actions-col { text-align: right; }
.badge { font-size: .7rem; background: var(--accent); color: #fff; padding: .1rem .4rem; border-radius: 10px; vertical-align: middle; }
.btn-sm { padding: .3rem .6rem; font-size: .85rem; }
.btn-secondary { background: transparent; color: var(--text); border: 1px solid var(--border); padding-top: calc(.6rem - 1px); padding-bottom: calc(.6rem - 1px); }
.btn-sm.btn-secondary { padding-top: calc(.3rem - 1px); padding-bottom: calc(.3rem - 1px); }
.btn-danger { background: #b00020; color: #fff; }
.form-panel { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 1.5rem; max-width: 460px; }
.form-panel label:first-of-type { margin-top: 0; }
.form-actions { display: flex; gap: .6rem; margin-top: 1.5rem; }
.field-err { display: block; color: var(--danger); font-size: .85rem; margin-top: .25rem; }
.flash { padding: .7rem 1rem; border-radius: 6px; margin: 0 0 1rem; }
.flash-ok { background: #1a7f3733; color: var(--text); border: 1px solid #1a7f37; }
.flash-err { background: #b0002022; color: var(--text); border: 1px solid var(--danger); }

@media (max-width: 640px) {
  .topbar { gap: .6rem; padding: 0 .6rem; }
  .projmenu summary .lbl { display: none; }
  .projmenu summary strong { max-width: 130px; }
  .dropdown .who-name { display: none; }
}

/* Form progetto e scheda progetto */
.form-wide { max-width: 640px; }
.hint { display: block; font-size: .8rem; color: var(--muted); margin-top: .3rem; }
textarea { resize: vertical; }
textarea[spellcheck="false"] { font-family: ui-monospace, Consolas, monospace; font-size: .9rem; }
.description { white-space: pre-wrap; max-width: 70ch; }
.info-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1rem; margin: 1.2rem 0; }
.info-card { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 1rem 1.2rem; }
.info-card h2 { font-size: .8rem; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); margin: 0 0 .6rem; }
.info-card ul { margin: 0; padding-left: 1.1rem; }