:root {
  --sidebar-w: 220px;
  --sidebar-bg: #0a0d14;
  --sidebar-border: rgba(255,255,255,0.06);
  --accent: #4f9cf9;
  --accent2: #e57e22;
  --topbar-h: 52px;
}
#app-wrapper { min-height: 100vh; }

/* ── Sidebar desktop ── */
#sidebar {
  width: var(--sidebar-w); min-height: 100vh; background: var(--sidebar-bg);
  border-right: 1px solid var(--sidebar-border);
  position: sticky; top: 0; height: 100vh; overflow-y: auto;
  flex-shrink: 0; display: flex; flex-direction: column;
  transition: transform 0.25s ease;
}
.sidebar-brand {
  padding: 1.1rem 1.1rem 0.9rem; font-size: 1rem; font-weight: 700;
  color: var(--accent); border-bottom: 1px solid var(--sidebar-border);
  display: flex; align-items: center;
}
.sidebar-nav { list-style: none; padding: 0.5rem 0; margin: 0; }
.sidebar-nav li a {
  display: flex; align-items: center; gap: 0.55rem;
  padding: 0.48rem 1.1rem; color: rgba(255,255,255,0.55);
  text-decoration: none; font-size: 0.845rem; transition: all 0.15s;
  border-left: 2px solid transparent;
}
.sidebar-nav li a:hover { color: rgba(255,255,255,0.85); background: rgba(255,255,255,0.04); }
.sidebar-nav li a.active { color: #fff; background: rgba(79,156,249,0.1); border-left-color: var(--accent); }
.sidebar-nav li a i { font-size: 0.95rem; flex-shrink: 0; }
.sidebar-divider { border-top: 1px solid var(--sidebar-border); margin: 0.4rem 0; }
.sidebar-footer { padding: 0.9rem 1.1rem; border-top: 1px solid var(--sidebar-border); margin-top: auto; }

/* ── Mobile topbar ── */
.mobile-topbar {
  display: flex; align-items: center; justify-content: space-between;
  background: var(--sidebar-bg); border-bottom: 1px solid var(--sidebar-border);
  padding: 0 0.5rem; height: var(--topbar-h);
  position: sticky; top: 0; z-index: 1000;
}

/* ── Sidebar overlay mobile ── */
.sidebar-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.6);
  z-index: 1040;
}

/* ── Mobile sidebar ── */

  #sidebar.open { transform: translateX(0); }
  #app-wrapper { display: block; }
  #main-content { padding-top: 0; }
  .page-header { padding: 1rem; }
  .page-body { padding: 1rem; }
  .scadenze-grid { grid-template-columns: 1fr; }
}

/* ── Layout desktop ── */
@media (min-width: 768px) {
  .mobile-topbar { display: none !important; }
}

#main-content { min-width: 0; }
.page-header { padding: 1.4rem 2rem 1rem; border-bottom: 1px solid var(--bs-border-color); }
.page-title { font-size: 1.35rem; font-weight: 600; letter-spacing: -0.02em; }
.page-body { padding: 1.5rem 2rem 3rem; }
.auth-card { width:100%; max-width:420px; background:var(--bs-body-bg); border:1px solid var(--bs-border-color); border-radius:12px; padding:2rem; }
.kpi-card { background:var(--bs-tertiary-bg); border-radius:8px; padding:1rem 1.25rem; }
.kpi-label { font-size:.72rem; color:var(--bs-secondary-color); text-transform:uppercase; letter-spacing:.04em; margin-bottom:.3rem; }
.kpi-value { font-size:1.45rem; font-weight:600; letter-spacing:-.02em; line-height:1.2; }
.kpi-sub { font-size:.72rem; color:var(--bs-secondary-color); margin-top:.2rem; }
.section-title { font-size:.68rem; font-weight:600; text-transform:uppercase; letter-spacing:.08em; color:var(--bs-secondary-color); padding-bottom:.7rem; border-bottom:1px solid var(--bs-border-color); margin-bottom:1rem; }
.table-header th { font-size:.7rem; font-weight:600; text-transform:uppercase; letter-spacing:.04em; color:var(--bs-secondary-color); padding:.65rem 1rem; background:var(--bs-tertiary-bg); }
.table-footer td { background:var(--bs-tertiary-bg); border-top:2px solid var(--bs-border-color); font-size:.875rem; padding:.65rem 1rem; }
.table td { padding:.6rem 1rem; vertical-align:middle; }
.btn-xs { padding:.18rem .4rem; font-size:.72rem; line-height:1.4; border-radius:4px; }
.font-mono { font-family:var(--bs-font-monospace); }
.calc-table { border:1px solid var(--bs-border-color); border-radius:8px; overflow:hidden; }
.calc-row { display:flex; justify-content:space-between; align-items:baseline; padding:.55rem 1rem; border-bottom:1px solid var(--bs-border-color); font-size:.875rem; }
.calc-row:last-child { border-bottom:none; }
.calc-value { font-weight:500; font-variant-numeric:tabular-nums; min-width:120px; text-align:right; }
.calc-result { background:rgba(255,255,255,.03); font-weight:500; }
.calc-total { background:rgba(255,255,255,.05); font-weight:700; font-size:1rem; }
.calc-divider { border-top:2px solid var(--bs-border-color); }
.scadenze-grid { display:grid; grid-template-columns:1fr 1fr; gap:1rem; }
.scadenza-card { border:1px solid var(--bs-border-color); border-radius:8px; overflow:hidden; }
.scadenza-card.urgente { border-color:#dc3545; }
.scadenza-card.presto { border-color:#fd7e14; }
.scadenza-date { background:var(--bs-tertiary-bg); padding:.55rem 1rem; font-size:.85rem; font-weight:600; border-bottom:1px solid var(--bs-border-color); }
.scad-row { display:flex; justify-content:space-between; padding:.35rem 1rem; font-size:.83rem; }
.scad-total { display:flex; justify-content:space-between; padding:.55rem 1rem; font-weight:700; background:var(--bs-tertiary-bg); border-top:1px solid var(--bs-border-color); font-size:.875rem; }
.drop-zone { border:2px dashed var(--bs-border-color); border-radius:10px; padding:2rem; text-align:center; transition:.2s; cursor:pointer; }
.drop-zone.dragover { border-color:var(--bs-primary); background:rgba(13,110,253,.05); }
.logo-preview { max-height:50px; max-width:150px; object-fit:contain; }
@media print { #sidebar { display:none!important; } .mobile-topbar { display:none!important; } .btn { display:none!important; } }

#sidebar {
  width: var(--sidebar-w); min-height: 100vh; background: var(--sidebar-bg);
  border-right: 1px solid var(--sidebar-border);
  position: sticky; top: 0; height: 100vh; overflow-y: auto;
  flex-shrink: 0; display: flex; flex-direction: column;
}
.sidebar-brand {
  padding: 1.1rem 1.1rem 0.9rem; font-size: 1rem; font-weight: 700;
  color: var(--accent); border-bottom: 1px solid var(--sidebar-border);
  letter-spacing: -0.01em; display: flex; align-items: center;
}
.sidebar-nav { list-style: none; padding: 0.5rem 0; margin: 0; }
.sidebar-nav li a {
  display: flex; align-items: center; gap: 0.55rem;
  padding: 0.48rem 1.1rem; color: rgba(255,255,255,0.55);
  text-decoration: none; font-size: 0.845rem; transition: all 0.15s;
  border-left: 2px solid transparent;
}
.sidebar-nav li a:hover { color: rgba(255,255,255,0.85); background: rgba(255,255,255,0.04); }
.sidebar-nav li a.active { color: #fff; background: rgba(79,156,249,0.1); border-left-color: var(--accent); }
.sidebar-nav li a i { font-size: 0.95rem; flex-shrink: 0; }
.sidebar-divider { border-top: 1px solid var(--sidebar-border); margin: 0.4rem 0; }
.sidebar-footer { padding: 0.9rem 1.1rem; border-top: 1px solid var(--sidebar-border); margin-top: auto; }
#main-content { min-width: 0; }
.page-header { padding: 1.4rem 2rem 1rem; border-bottom: 1px solid var(--bs-border-color); }
.page-title { font-size: 1.35rem; font-weight: 600; letter-spacing: -0.02em; }
.page-body { padding: 1.5rem 2rem 3rem; }
.auth-card {
  width: 100%; max-width: 420px; background: var(--bs-body-bg);
  border: 1px solid var(--bs-border-color); border-radius: 12px; padding: 2rem;
}
.kpi-card { background: var(--bs-tertiary-bg); border-radius: 8px; padding: 1rem 1.25rem; }
.kpi-label { font-size: 0.72rem; color: var(--bs-secondary-color); text-transform: uppercase; letter-spacing: 0.04em; margin-bottom: 0.3rem; }
.kpi-value { font-size: 1.45rem; font-weight: 600; letter-spacing: -0.02em; line-height: 1.2; }
.kpi-sub { font-size: 0.72rem; color: var(--bs-secondary-color); margin-top: 0.2rem; }
.section-title { font-size: 0.68rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; color: var(--bs-secondary-color); padding-bottom: 0.7rem; border-bottom: 1px solid var(--bs-border-color); margin-bottom: 1rem; }
.table-header th { font-size: 0.7rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; color: var(--bs-secondary-color); padding: 0.65rem 1rem; background: var(--bs-tertiary-bg); }
.table-footer td { background: var(--bs-tertiary-bg); border-top: 2px solid var(--bs-border-color); font-size: 0.875rem; padding: 0.65rem 1rem; }
.table td { padding: 0.6rem 1rem; vertical-align: middle; }
.btn-xs { padding: 0.18rem 0.4rem; font-size: 0.72rem; line-height: 1.4; border-radius: 4px; }
.font-mono { font-family: var(--bs-font-monospace); }
.calc-table { border: 1px solid var(--bs-border-color); border-radius: 8px; overflow: hidden; }
.calc-row { display: flex; justify-content: space-between; align-items: baseline; padding: 0.55rem 1rem; border-bottom: 1px solid var(--bs-border-color); font-size: 0.875rem; }
.calc-row:last-child { border-bottom: none; }
.calc-value { font-weight: 500; font-variant-numeric: tabular-nums; min-width: 120px; text-align: right; }
.calc-result { background: rgba(255,255,255,0.03); font-weight: 500; }
.calc-total { background: rgba(255,255,255,0.05); font-weight: 700; font-size: 1rem; }
.calc-divider { border-top: 2px solid var(--bs-border-color); }
.scadenze-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.scadenza-card { border: 1px solid var(--bs-border-color); border-radius: 8px; overflow: hidden; }
.scadenza-card.urgente { border-color: #dc3545; }
.scadenza-card.presto { border-color: #fd7e14; }
.scadenza-date { background: var(--bs-tertiary-bg); padding: 0.55rem 1rem; font-size: 0.85rem; font-weight: 600; border-bottom: 1px solid var(--bs-border-color); }
.scad-row { display: flex; justify-content: space-between; padding: 0.35rem 1rem; font-size: 0.83rem; }
.scad-total { display: flex; justify-content: space-between; padding: 0.55rem 1rem; font-weight: 700; background: var(--bs-tertiary-bg); border-top: 1px solid var(--bs-border-color); font-size: 0.875rem; }
.badge-stato-bozza { background: #6c757d; }
.badge-stato-inviato { background: #0d6efd; }
.badge-stato-accettato { background: #198754; }
.badge-stato-rifiutato { background: #dc3545; }
.badge-stato-scaduto { background: #fd7e14; }
.drop-zone { border: 2px dashed var(--bs-border-color); border-radius: 10px; padding: 2rem; text-align: center; transition: .2s; cursor: pointer; }
.drop-zone.dragover { border-color: var(--bs-primary); background: rgba(13,110,253,.05); }
@media print { #sidebar { display: none !important; } .btn { display: none !important; } .tab-pane { display: block !important; opacity: 1 !important; } }

@media (max-width: 767px) {
  #sidebar {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    height: 100vh !important;
    z-index: 1050 !important;
    transform: translateX(-100%) !important;
    display: flex !important;
  }
  #sidebar.open {
    transform: translateX(0) !important;
  }
  #app-wrapper { display: block !important; }
}