:root {
  --bg: #f1f5f9; --panel: #ffffff; --testo: #0f172a; --muto: #64748b; --bordo: #e2e8f0;
  --accento: #1d4ed8; --rosso: #dc2626; --ambra: #d97706; --verde: #16a34a;
  --idea: #a855f7; --da_fare: #64748b; --in_corso: #2563eb; --in_attesa: #d97706; --fatto: #16a34a; --annullato: #94a3b8;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0b1120; --panel: #111827; --testo: #e5e7eb; --muto: #94a3b8; --bordo: #1f2937; --accento: #60a5fa; color-scheme: dark; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--testo); font: 14px/1.4 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
button, input, select, textarea { font: inherit; color: inherit; }
input, select, textarea { background: var(--panel); border: 1px solid var(--bordo); border-radius: 8px; padding: 7px 9px; }
textarea { width: 100%; resize: vertical; }
button { cursor: pointer; border: 1px solid var(--bordo); background: var(--panel); border-radius: 8px; padding: 7px 12px; }
button.primario { background: var(--accento); border-color: var(--accento); color: #fff; font-weight: 600; }
button.link { border: 0; background: none; color: var(--accento); padding: 7px 4px; }
.muto { color: var(--muto); font-weight: 400; }

.top { position: sticky; top: 0; z-index: 5; display: flex; align-items: center; gap: 12px; padding: 10px 16px; background: #0f172a; color: #fff; }
.brand { font-weight: 800; letter-spacing: .5px; }
.brand span { font-weight: 400; opacity: .7; }
.viste { display: flex; gap: 4px; margin-left: auto; }
.viste button { background: transparent; border-color: transparent; color: #cbd5e1; }
.viste button.attiva { background: #1e293b; color: #fff; }

.filtri { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; padding: 12px 16px; border-bottom: 1px solid var(--bordo); background: var(--panel); }
#f-q { flex: 1 1 240px; min-width: 0; }
.check { display: flex; gap: 6px; align-items: center; color: var(--muto); }
.chips { display: flex; flex-wrap: wrap; gap: 6px; width: 100%; }
.chips:empty, .ricerche:empty { display: none; }
.ricerche { display: flex; flex-wrap: wrap; gap: 6px; width: 100%; }
.ricerca { display: inline-flex; align-items: center; border: 1px solid var(--bordo); border-radius: 999px; overflow: hidden; }
.ricerca button { border: 0; border-radius: 0; padding: 4px 10px; background: transparent; }
.ricerca button + button { padding: 4px 8px; color: var(--muto); }
.ricerca.attiva { border-color: var(--accento); background: color-mix(in srgb, var(--accento) 12%, transparent); }

.tag { display: inline-flex; align-items: center; gap: 4px; padding: 1px 8px; border-radius: 999px; font-size: 12px; color: #fff; background: var(--c, #64748b); white-space: nowrap; }
.tag.off { background: transparent; color: var(--testo); border: 1px solid var(--c); }
.tag button { border: 0; background: none; color: inherit; padding: 0 0 0 2px; }

main { padding: 16px; }
.vuoto { color: var(--muto); padding: 40px; text-align: center; }

/* Bacheca */
.bacheca { display: grid; align-items: start; grid-auto-flow: column; grid-auto-columns: minmax(250px, 1fr); gap: 12px; overflow-x: auto; padding-bottom: 8px; }
.colonna { background: color-mix(in srgb, var(--panel) 60%, transparent); border: 1px solid var(--bordo); border-radius: 12px; padding: 8px; min-height: 200px; }
.colonna.sopra { outline: 2px dashed var(--accento); }
.colonna h3 { margin: 4px 6px 10px; font-size: 13px; text-transform: uppercase; letter-spacing: .5px; display: flex; gap: 8px; align-items: center; }
.colonna h3::before { content: ""; width: 10px; height: 10px; border-radius: 50%; background: var(--s); }
.colonna h3 .n { color: var(--muto); font-weight: 400; }
.card { background: var(--panel); border: 1px solid var(--bordo); border-left: 4px solid var(--p, transparent); border-radius: 10px; padding: 9px 10px; margin-bottom: 8px; cursor: pointer; }
.card:hover { border-color: var(--accento); }
.card .tit { font-weight: 600; margin-bottom: 6px; }
.card .meta { display: flex; flex-wrap: wrap; gap: 4px 8px; align-items: center; font-size: 12px; color: var(--muto); }
.scaduta { color: var(--rosso) !important; font-weight: 600; }
.p-urgente { --p: var(--rosso); } .p-alta { --p: var(--ambra); } .p-media { --p: transparent; } .p-bassa { --p: transparent; opacity: .85; }

/* Lista */
table { width: 100%; border-collapse: collapse; background: var(--panel); border-radius: 12px; overflow: hidden; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--bordo); vertical-align: top; }
th { font-size: 12px; color: var(--muto); text-transform: uppercase; cursor: pointer; user-select: none; }
tbody tr { cursor: pointer; }
tbody tr:hover { background: color-mix(in srgb, var(--accento) 6%, transparent); }
.stato { display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: 12px; color: #fff; background: var(--s); white-space: nowrap; }

/* Calendario */
.cal-head { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; }
.cal-head h2 { margin: 0 8px; font-size: 18px; text-transform: capitalize; }
.cal { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 4px; }
.cal .gs { font-size: 12px; color: var(--muto); text-align: center; padding: 4px; }
.giorno { background: var(--panel); border: 1px solid var(--bordo); border-radius: 8px; min-height: 96px; padding: 4px; cursor: pointer; overflow: hidden; }
.giorno.fuori { opacity: .45; }
.giorno.oggi { border-color: var(--accento); box-shadow: inset 0 0 0 1px var(--accento); }
.giorno .num { font-size: 12px; color: var(--muto); }
.giorno .ev { font-size: 12px; padding: 1px 5px; border-radius: 4px; margin-top: 2px; background: color-mix(in srgb, var(--s) 18%, transparent); border-left: 3px solid var(--s); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.giorno .ev.chiuso { text-decoration: line-through; opacity: .6; }
.senza-data { margin-top: 16px; color: var(--muto); }

/* Dialoghi */
dialog { border: 0; border-radius: 14px; padding: 0; width: min(680px, calc(100vw - 24px)); background: var(--panel); color: var(--testo); box-shadow: 0 20px 60px rgba(0,0,0,.35); }
dialog::backdrop { background: rgba(15, 23, 42, .5); }
dialog form { padding: 16px; display: flex; flex-direction: column; gap: 10px; max-height: calc(100vh - 40px); overflow-y: auto; }
.dlg-head { display: flex; gap: 8px; }
.dlg-head input { flex: 1; font-size: 17px; font-weight: 600; }
.x { font-size: 20px; line-height: 1; padding: 4px 12px; }
.stati-btn { display: flex; flex-wrap: wrap; gap: 6px; }
.stati-btn button { border-color: var(--s); color: var(--s); }
.stati-btn button.on { background: var(--s); color: #fff; }
.griglia { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; }
.griglia label { display: flex; flex-direction: column; gap: 3px; font-size: 12px; color: var(--muto); }
.griglia label.largo { grid-column: span 4; }
.sez { font-size: 12px; font-weight: 700; text-transform: uppercase; color: var(--muto); margin-top: 4px; }
.tag-scelta { display: flex; flex-direction: column; gap: 6px; }
.tag-scelta .grp { display: flex; flex-wrap: wrap; gap: 5px; align-items: center; }
.tag-scelta .grp b { font-size: 11px; color: var(--muto); text-transform: uppercase; min-width: 56px; }
.tag-scelta .tag { cursor: pointer; }
.dlg-azioni { display: flex; justify-content: flex-end; gap: 8px; }
.storico { list-style: none; margin: 0; padding: 0; border-left: 2px solid var(--bordo); }
.storico li { position: relative; padding: 2px 0 10px 14px; }
.storico li::before { content: ""; position: absolute; left: -6px; top: 6px; width: 10px; height: 10px; border-radius: 50%; background: var(--s, var(--muto)); }
.storico .quando { font-size: 12px; color: var(--muto); }
.storico .cosa { white-space: pre-wrap; }
#dlg-login form { max-width: 360px; }
#dlg-login h2 { margin: 0; }
.errore { color: var(--rosso); min-height: 1em; margin: 0; }

.popover { position: absolute; z-index: 20; background: var(--panel); border: 1px solid var(--bordo); border-radius: 12px; padding: 12px; width: min(420px, calc(100vw - 24px)); box-shadow: 0 12px 40px rgba(0,0,0,.25); }
.popover .nuovo-tag input { min-width: 0; }
.popover .nuovo-tag { display: grid; grid-template-columns: 1fr 1fr 44px auto; gap: 6px; margin-top: 10px; border-top: 1px solid var(--bordo); padding-top: 10px; }
.popover .nuovo-tag input[type=color] { padding: 2px; height: 36px; }

#toast { position: fixed; bottom: 16px; left: 50%; transform: translateX(-50%); background: #0f172a; color: #fff; padding: 9px 16px; border-radius: 10px; z-index: 50; }

/* Gestione tag */
.gestione { padding: 16px; display: flex; flex-direction: column; gap: 10px; max-height: calc(100vh - 40px); overflow-y: auto; }
.gestione h2 { margin: 0; flex: 1; font-size: 18px; }
.cat { border: 1px solid var(--bordo); border-radius: 10px; padding: 10px; display: flex; flex-direction: column; gap: 6px; }
.cat-head { display: flex; gap: 6px; align-items: center; }
.cat-head input:not([type=color]) { flex: 1; font-weight: 700; min-width: 0; }
.tag-riga { display: grid; grid-template-columns: 12px minmax(0, 1fr) minmax(0, 130px) 40px 60px 28px; gap: 6px; align-items: center; }
.tag-riga input, .tag-riga select { min-width: 0; padding: 4px 7px; }
.pallino { width: 12px; height: 12px; border-radius: 50%; }
input[type=color] { padding: 2px; height: 32px; width: 40px; }
dialog .riga-add { display: flex; flex-direction: row; gap: 6px; padding: 0; max-height: none; overflow: visible; }
.riga-add input:not([type=color]) { flex: 1; min-width: 0; }
.piccolo { font-size: 12px; margin: 8px 0 0; }

/* Calendario: task senza data e drop */
.senza { background: var(--panel); border: 1px dashed var(--bordo); border-radius: 10px; padding: 8px; margin-bottom: 10px; }
.senza > div { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 6px; }
.senza .ev { font-size: 12px; padding: 2px 6px; border-radius: 4px; background: color-mix(in srgb, var(--s) 18%, transparent); border-left: 3px solid var(--s); cursor: grab; }
.giorno.sopra, .senza.sopra { outline: 2px dashed var(--accento); }
.giorno .ev { cursor: grab; }

/* Diario */
.diario-g { background: var(--panel); border: 1px solid var(--bordo); border-radius: 12px; padding: 10px 14px; margin-bottom: 12px; }
.diario-g h3 { margin: 0 0 8px; font-size: 14px; text-transform: capitalize; }
.diario-g a { color: var(--accento); text-decoration: none; font-weight: 600; }
.cal-head { flex-wrap: wrap; }

@media (max-width: 700px) {
  .tag-riga { grid-template-columns: 12px minmax(0, 1fr) 40px 28px; }
  .tag-riga select, .tag-riga .muto { display: none; }
  .top { flex-wrap: wrap; padding: 8px 12px; }
  .viste { order: 3; width: 100%; margin: 0; justify-content: space-between; }
  .viste button { flex: 1; }
  #nuovo { margin-left: auto; }
  .filtri, main { padding-left: 12px; padding-right: 12px; }
  .filtri select { flex: 1 1 45%; }
  .bacheca { grid-auto-columns: 85vw; scroll-snap-type: x mandatory; }
  .colonna { scroll-snap-align: start; }
  .colonna.vuota { display: none; }
  .griglia { grid-template-columns: 1fr 1fr; }
  .griglia label.largo { grid-column: span 2; }
  .lista-tab .opz { display: none; }
  .giorno { min-height: 64px; }
  .giorno .ev { font-size: 10px; padding: 0 3px; }
}