:root {
  --bg: #f1f5f9; --panel: #ffffff; --text: #0f172a; --muted: #64748b; --border: #e2e8f0; --border-2: #cbd5e1;
  --accent: #2858a8; --accent-dark: #1b3f7c; --accent-soft: #e3ebf7;
  --ok: #16a34a; --ok-soft: #dcfce7; --warn: #d97706; --warn-soft: #fef3c7; --danger: #dc2626; --danger-soft: #fee2e2;
  --dark: #0f172a; --radius: 10px; --shadow: 0 1px 2px rgba(15, 23, 42, .06), 0 4px 16px rgba(15, 23, 42, .05);
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body { font-family: "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif; font-size: 14px; color: var(--text); background: var(--bg); line-height: 1.45; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { margin: 0 0 .5em; line-height: 1.25; }
h1 { font-size: 22px; } h2 { font-size: 18px; } h3 { font-size: 15px; } h4 { font-size: 13px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
p { margin: 0 0 .8em; }
small, .muted { color: var(--muted); }
.mono { font-family: Consolas, "Courier New", monospace; }
.hidden { display: none !important; }
.right { text-align: right; }
.nowrap { white-space: nowrap; }

/* layout back office */
.app { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
.sidebar { background: var(--dark); color: #cbd5e1; padding: 18px 14px; position: sticky; top: 0; height: 100vh; display: flex; flex-direction: column; gap: 4px; }
.sidebar .brand { color: #fff; font-weight: 700; font-size: 17px; padding: 4px 10px 16px; display: flex; align-items: center; gap: 8px; }
.sidebar .brand span { color: #38bdf8; }
.logo { display: block; height: 40px; width: auto; max-width: 100%; }
.logo-box { display: inline-block; background: #fff; border-radius: 8px; padding: 8px 12px; line-height: 0; }
.sidebar .logo-box { display: block; margin: 0 0 14px; }
.sidebar .logo-box .logo { height: 34px; margin: 0 auto; }
.hero .logo-box { margin-bottom: 16px; }
.login-box .logo-box { display: block; text-align: center; margin: 0 0 18px; padding: 0; }
.login-box .logo { height: 48px; margin: 0 auto; }
.sidebar a { color: #cbd5e1; padding: 9px 10px; border-radius: 8px; display: flex; align-items: center; gap: 10px; font-weight: 500; }
.sidebar a:hover { background: #1e293b; text-decoration: none; color: #fff; }
.sidebar a.active { background: var(--accent); color: #fff; }
.sidebar .spacer { flex: 1; }
.sidebar .user { font-size: 12px; padding: 10px; border-top: 1px solid #1e293b; }
.sidebar .user b { color: #fff; display: block; }
.main { padding: 22px 26px 60px; min-width: 0; }
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 14px; margin-bottom: 18px; flex-wrap: wrap; }
.topbar h1 { margin: 0; }
.mobile-nav { display: none; }

/* componenti */
.card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; box-shadow: var(--shadow); margin-bottom: 16px; }
.card h3 { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.grid { display: grid; gap: 14px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.span-2 { grid-column: span 2; }
.span-3 { grid-column: span 3; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.row.between { justify-content: space-between; }
.stack > * + * { margin-top: 10px; }

.btn { display: inline-flex; align-items: center; gap: 6px; padding: 8px 14px; border-radius: 8px; border: 1px solid var(--border-2); background: #fff; color: var(--text); font: inherit; font-weight: 600; cursor: pointer; white-space: nowrap; transition: background .12s, border-color .12s; }
.btn:hover { background: #f8fafc; text-decoration: none; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { background: var(--accent-dark); }
.btn.ok { background: var(--ok); border-color: var(--ok); color: #fff; }
.btn.danger { background: #fff; border-color: var(--danger); color: var(--danger); }
.btn.danger:hover { background: var(--danger-soft); }
.btn.ghost { border-color: transparent; background: transparent; color: var(--accent); }
.btn.wa { background: #25d366; border-color: #25d366; color: #fff; }
.btn.small { padding: 5px 10px; font-size: 12.5px; }
.btn.block { width: 100%; justify-content: center; }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn.icon { padding: 6px 8px; }

label { display: block; font-size: 12.5px; font-weight: 600; color: var(--muted); margin-bottom: 4px; }
input[type=text], input[type=email], input[type=password], input[type=number], input[type=date], input[type=tel], input[type=search], select, textarea {
  width: 100%; padding: 8px 10px; border: 1px solid var(--border-2); border-radius: 8px; font: inherit; color: var(--text); background: #fff; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent-soft); border-color: var(--accent); }
textarea { min-height: 72px; resize: vertical; }
.field { margin-bottom: 10px; }
.check { display: flex; align-items: center; gap: 8px; font-weight: 500; color: var(--text); font-size: 13.5px; cursor: pointer; }
.check input { width: 16px; height: 16px; }
.help { font-size: 12px; color: var(--muted); margin-top: 3px; }

table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { font-size: 12px; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); font-weight: 600; background: #f8fafc; }
tr.clickable { cursor: pointer; }
tr.clickable:hover td { background: #f8fafc; }
td.num, th.num { text-align: right; white-space: nowrap; }
.table-wrap { overflow-x: auto; }

.badge { display: inline-flex; align-items: center; gap: 5px; padding: 3px 9px; border-radius: 999px; font-size: 12px; font-weight: 600; background: #e2e8f0; color: #334155; white-space: nowrap; }
.badge.s-richiesta { background: #ede9fe; color: #6d28d9; }
.badge.s-ricevuto { background: #e0f2fe; color: #0369a1; }
.badge.s-in_diagnosi { background: #cffafe; color: #0e7490; }
.badge.s-preventivo_inviato { background: var(--warn-soft); color: #b45309; }
.badge.s-approvato { background: #d1fae5; color: #047857; }
.badge.s-attesa_ricambi, .badge.s-inviato_dji, .badge.s-rientrato_dji { background: #fce7f3; color: #be185d; }
.badge.s-in_lavorazione { background: #dbeafe; color: #1d4ed8; }
.badge.s-pronto { background: var(--ok-soft); color: #15803d; }
.badge.s-consegnato, .badge.s-chiuso { background: #f1f5f9; color: #475569; }
.badge.s-annullato { background: var(--danger-soft); color: #b91c1c; }
.badge.ok { background: var(--ok-soft); color: #15803d; }
.badge.warn { background: var(--warn-soft); color: #b45309; }
.badge.danger { background: var(--danger-soft); color: #b91c1c; }
.badge.info { background: var(--accent-soft); color: var(--accent-dark); }
.dot { width: 8px; height: 8px; border-radius: 50%; background: currentColor; display: inline-block; }

.chips { display: flex; gap: 6px; flex-wrap: wrap; }
.chip { padding: 5px 11px; border-radius: 999px; border: 1px solid var(--border-2); background: #fff; cursor: pointer; font-size: 12.5px; font-weight: 600; color: var(--muted); }
.chip.active { background: var(--dark); color: #fff; border-color: var(--dark); }
.chip .n { opacity: .7; margin-left: 4px; }

.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin-bottom: 16px; }
.kpi { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; box-shadow: var(--shadow); cursor: pointer; }
.kpi .v { font-size: 26px; font-weight: 700; line-height: 1.1; }
.kpi .l { font-size: 12px; color: var(--muted); margin-top: 4px; }
.kpi.warn .v { color: var(--warn); } .kpi.danger .v { color: var(--danger); } .kpi.ok .v { color: var(--ok); } .kpi.accent .v { color: var(--accent); }

.tabs { display: flex; gap: 2px; border-bottom: 2px solid var(--border); margin-bottom: 14px; overflow-x: auto; }
.tab { padding: 9px 14px; font-weight: 600; color: var(--muted); cursor: pointer; border-bottom: 2px solid transparent; margin-bottom: -2px; white-space: nowrap; }
.tab.active { color: var(--accent); border-color: var(--accent); }
.tab .n { background: var(--border); border-radius: 999px; font-size: 11px; padding: 1px 6px; margin-left: 4px; }

.timeline { list-style: none; margin: 0; padding: 0; }
.timeline li { display: grid; grid-template-columns: 130px 1fr; gap: 12px; padding: 8px 0; border-bottom: 1px solid var(--border); font-size: 13px; }
.timeline li:last-child { border-bottom: 0; }
.timeline .when { color: var(--muted); font-size: 12px; }
.timeline .who { color: var(--muted); font-size: 12px; }
.timeline .t-stato { font-weight: 600; }
.timeline .eye { font-size: 11px; color: var(--ok); margin-left: 6px; }

.alert { padding: 10px 14px; border-radius: 8px; margin-bottom: 12px; border: 1px solid; font-size: 13.5px; }
.alert.warn { background: var(--warn-soft); border-color: #fcd34d; color: #92400e; }
.alert.ok { background: var(--ok-soft); border-color: #86efac; color: #166534; }
.alert.danger { background: var(--danger-soft); border-color: #fca5a5; color: #991b1b; }
.alert.info { background: var(--accent-soft); border-color: #7dd3fc; color: #075985; }

.toast { position: fixed; right: 20px; bottom: 20px; background: var(--dark); color: #fff; padding: 12px 16px; border-radius: 10px; box-shadow: 0 8px 30px rgba(0,0,0,.25); z-index: 1000; max-width: 380px; font-size: 13.5px; }
.toast.err { background: var(--danger); }
.toast.ok { background: var(--ok); }

.modal-bg { position: fixed; inset: 0; background: rgba(15, 23, 42, .45); display: flex; align-items: center; justify-content: center; z-index: 900; padding: 16px; }
.modal { background: #fff; border-radius: 14px; padding: 20px 22px; width: 100%; max-width: 620px; max-height: 92vh; overflow: auto; box-shadow: 0 20px 60px rgba(0,0,0,.3); }
.modal h2 { margin-bottom: 12px; }
.modal .actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 16px; }

.stepper { display: grid; grid-template-columns: repeat(6, 1fr); gap: 4px; margin: 14px 0; }
.step { text-align: center; font-size: 11.5px; color: var(--muted); position: relative; }
.step .b { width: 26px; height: 26px; border-radius: 50%; background: var(--border); margin: 0 auto 5px; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 12px; color: #fff; }
.step.done .b { background: var(--ok); }
.step.current .b { background: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }
.step.current { color: var(--accent); font-weight: 700; }
.step.done { color: var(--ok); }

.empty { text-align: center; color: var(--muted); padding: 24px; font-size: 13.5px; }
.kv { display: grid; grid-template-columns: 150px 1fr; gap: 4px 12px; font-size: 13.5px; }
.kv dt { color: var(--muted); } .kv dd { margin: 0; }
.big { font-size: 22px; font-weight: 700; }
.pill-row { display: flex; gap: 8px; flex-wrap: wrap; }
.accessorio-btn { padding: 5px 10px; border: 1px dashed var(--border-2); border-radius: 8px; background: #fff; cursor: pointer; font-size: 12.5px; }
.accessorio-btn:hover { border-color: var(--accent); color: var(--accent); }
.search-results { border: 1px solid var(--border-2); border-radius: 8px; max-height: 220px; overflow: auto; background: #fff; }
.search-results div { padding: 8px 10px; cursor: pointer; border-bottom: 1px solid var(--border); }
.search-results div:hover { background: var(--accent-soft); }
.totali { margin-left: auto; width: 280px; }
.totali div { display: flex; justify-content: space-between; padding: 3px 0; }
.totali .tot { font-weight: 700; font-size: 16px; border-top: 2px solid var(--dark); margin-top: 4px; padding-top: 6px; }
.copy { cursor: pointer; }

/* pagine pubbliche */
.public { max-width: 760px; margin: 0 auto; padding: 20px 16px 60px; }
.public-header { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 10px 0 18px; }
.public-header .brand { font-weight: 800; font-size: 20px; color: var(--dark); }
.public-header .brand span { color: var(--accent); }
.hero { background: var(--dark); color: #fff; border-radius: 16px; padding: 28px 26px; margin-bottom: 18px; }
.hero h1 { color: #fff; font-size: 26px; }
.hero p { color: #cbd5e1; margin: 0; }
.login-box { max-width: 380px; margin: 10vh auto; }

@media (max-width: 900px) {
  .app { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .mobile-nav { display: flex; gap: 4px; overflow-x: auto; background: var(--dark); padding: 10px 12px; position: sticky; top: 0; z-index: 50; }
  .mobile-nav a { color: #cbd5e1; padding: 7px 11px; border-radius: 8px; white-space: nowrap; font-weight: 600; font-size: 13px; }
  .mobile-nav a.active { background: var(--accent); color: #fff; }
  .main { padding: 14px 12px 60px; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .span-2, .span-3 { grid-column: span 1; }
  .timeline li { grid-template-columns: 1fr; gap: 2px; }
  .stepper { grid-template-columns: repeat(3, 1fr); }
  .totali { width: 100%; }
  .kv { grid-template-columns: 1fr; }
}
@media print {
  .sidebar, .mobile-nav, .topbar, .btn, .tabs { display: none !important; }
  .app { display: block; }
  .card { box-shadow: none; break-inside: avoid; }
}