/* Levia ROI Calculator - Custom Styles */

:root {
  --levia-orange: #FF7415;
  --levia-orange-dark: #B84B00;
  --levia-orange-light: #FFE8D8;
  --levia-dark: #253137;
  --levia-grey: #DAE2E6;
}

* {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Montserrat', system-ui, sans-serif;
  color: var(--levia-dark);
}

/* Loading screen */
.loading-screen {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  gap: 1.5rem;
  color: var(--levia-dark);
}

.spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--levia-grey);
  border-top-color: var(--levia-orange);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Header gradient */
.levia-header {
  background: linear-gradient(135deg, #253137 0%, #3a4a52 100%);
  position: relative;
  overflow: hidden;
}

.levia-header::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 6px;
  background: linear-gradient(90deg, #FF7415 0%, #B84B00 100%);
}

/* Process tabs */
.process-tab {
  transition: all 0.3s ease;
  cursor: pointer;
  border-bottom: 3px solid transparent;
}

.process-tab:hover {
  background: var(--levia-orange-light);
}

.process-tab.active {
  background: white;
  border-bottom-color: var(--levia-orange);
  color: var(--levia-orange);
  font-weight: 600;
}

/* Form input */
.levia-input {
  width: 100%;
  padding: 0.625rem 0.875rem;
  border: 1.5px solid var(--levia-grey);
  border-radius: 8px;
  background: white;
  font-family: inherit;
  font-size: 0.95rem;
  transition: all 0.2s ease;
}

.levia-input:focus {
  outline: none;
  border-color: var(--levia-orange);
  box-shadow: 0 0 0 3px rgba(255, 116, 21, 0.15);
}

.levia-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--levia-dark);
  margin-bottom: 0.35rem;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

/* Buttons */
.btn-levia {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  border-radius: 999px;
  font-weight: 600;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
  font-family: inherit;
  font-size: 0.9rem;
}

.btn-levia-primary {
  background: var(--levia-orange);
  color: white;
}

.btn-levia-primary:hover {
  background: var(--levia-orange-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(255, 116, 21, 0.3);
}

.btn-levia-secondary {
  background: var(--levia-dark);
  color: white;
}

.btn-levia-secondary:hover {
  background: #1a2228;
}

.btn-levia-outline {
  background: white;
  color: var(--levia-dark);
  border: 1.5px solid var(--levia-grey);
}

.btn-levia-outline:hover {
  background: var(--levia-orange-light);
  border-color: var(--levia-orange);
}

.btn-levia-danger {
  background: white;
  color: #dc2626;
  border: 1.5px solid #fecaca;
}

.btn-levia-danger:hover {
  background: #fee2e2;
}

/* Cards */
.levia-card {
  background: white;
  border-radius: 16px;
  padding: 1.5rem;
  box-shadow: 0 1px 3px rgba(37, 49, 55, 0.08), 0 1px 2px rgba(37, 49, 55, 0.04);
  border: 1px solid #f1f5f9;
}

.levia-kpi-card {
  background: white;
  border-radius: 16px;
  padding: 1.5rem;
  box-shadow: 0 1px 3px rgba(37, 49, 55, 0.08);
  border-left: 4px solid var(--levia-orange);
  position: relative;
  overflow: hidden;
}

.levia-kpi-card.positive { border-left-color: #10b981; }
.levia-kpi-card.warning { border-left-color: #f59e0b; }
.levia-kpi-card.dark { border-left-color: var(--levia-dark); }

/* Sezione header */
.section-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--levia-orange-light);
}

.section-header i {
  color: var(--levia-orange);
  font-size: 1.25rem;
}

/* Pillole */
.pill {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.pill-orange { background: var(--levia-orange-light); color: var(--levia-orange-dark); }
.pill-dark { background: var(--levia-grey); color: var(--levia-dark); }
.pill-green { background: #d1fae5; color: #047857; }
.pill-red { background: #fee2e2; color: #dc2626; }

/* Tabella */
.levia-table {
  width: 100%;
  border-collapse: collapse;
}

.levia-table th {
  text-align: left;
  padding: 0.75rem 1rem;
  background: var(--levia-grey);
  color: var(--levia-dark);
  font-weight: 700;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.levia-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid #f1f5f9;
  font-size: 0.9rem;
}

.levia-table tr:hover td {
  background: #fff8f3;
}

.levia-table tr:last-child td {
  border-bottom: none;
}

.levia-table tfoot td {
  background: var(--levia-orange-light);
  font-weight: 700;
  border-top: 2px solid var(--levia-orange);
}

/* Animazioni */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in {
  animation: fadeIn 0.3s ease-out;
}

/* Toggle switch */
.toggle-switch {
  position: relative;
  display: inline-block;
  width: 48px;
  height: 26px;
}
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: var(--levia-grey);
  transition: 0.3s;
  border-radius: 26px;
}
.toggle-slider:before {
  position: absolute;
  content: "";
  height: 20px; width: 20px;
  left: 3px; bottom: 3px;
  background-color: white;
  transition: 0.3s;
  border-radius: 50%;
}
input:checked + .toggle-slider {
  background-color: var(--levia-orange);
}
input:checked + .toggle-slider:before {
  transform: translateX(22px);
}

/* Tooltip */
.tooltip {
  position: relative;
  display: inline-block;
  cursor: help;
}
.tooltip i {
  color: #94a3b8;
  font-size: 0.85rem;
  margin-left: 0.25rem;
}
.tooltip:hover::after {
  content: attr(data-tip);
  position: absolute;
  bottom: 130%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--levia-dark);
  color: white;
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  font-size: 0.75rem;
  font-weight: 400;
  white-space: nowrap;
  z-index: 100;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

/* Print styles - PDF stampa */
@media print {
  @page {
    size: A4;
    margin: 15mm;
  }
  body {
    background: white !important;
    color: black !important;
    font-size: 10pt;
  }
  .no-print { display: none !important; }
  .print-only { display: block !important; }

  .levia-header {
    background: white !important;
    color: var(--levia-dark) !important;
    border-bottom: 4px solid var(--levia-orange) !important;
    padding: 1rem !important;
  }
  .levia-header * {
    color: var(--levia-dark) !important;
  }
  .levia-header::after { display: none !important; }

  .levia-card, .levia-kpi-card {
    box-shadow: none !important;
    border: 1px solid #cbd5e1 !important;
    page-break-inside: avoid;
    break-inside: avoid;
  }

  .print-page-break { page-break-before: always; break-before: page; }

  canvas {
    max-width: 100% !important;
    height: auto !important;
  }

  .btn-levia, button {
    display: none !important;
  }

  .print-footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    text-align: center;
    font-size: 8pt;
    color: #64748b;
    border-top: 1px solid #cbd5e1;
    padding-top: 0.5rem;
  }
}

.print-only { display: none; }

/* Sidebar */
.sidebar-link {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.625rem 1rem;
  border-radius: 8px;
  color: var(--levia-dark);
  cursor: pointer;
  transition: all 0.2s ease;
  font-weight: 500;
  font-size: 0.9rem;
}

.sidebar-link:hover {
  background: var(--levia-orange-light);
  color: var(--levia-orange-dark);
}

.sidebar-link.active {
  background: var(--levia-orange);
  color: white;
}

.sidebar-link i {
  width: 18px;
  text-align: center;
}

/* Process navigator pills */
.proc-pill {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: white;
  border: 1.5px solid var(--levia-grey);
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 0.85rem;
  font-weight: 500;
  white-space: nowrap;
}
.proc-pill:hover {
  border-color: var(--levia-orange);
  color: var(--levia-orange);
}
.proc-pill.active {
  background: var(--levia-orange);
  border-color: var(--levia-orange);
  color: white;
}
.proc-pill .badge {
  background: rgba(0,0,0,0.1);
  padding: 1px 8px;
  border-radius: 999px;
  font-size: 0.7rem;
}
.proc-pill.active .badge {
  background: rgba(255,255,255,0.25);
}
.proc-pill.disabled {
  opacity: 0.5;
}