:root {
  --form-bg: var(--card-bg, #ffffff);
  --form-control-bg: var(--form-bg);
  --form-border: rgba(15, 23, 42, 0.12);
  --form-muted: #64748b;
  --form-text: var(--text-color, #142033);
  --form-accent: var(--accent, #2d8cff);
  --form-accent-strong: var(--accent-strong, #1f6fd6);
  --form-hint-bg: #f8fafc;
  --file-button-bg: var(--accent, #2d8cff);
  --file-button-bg-hover: var(--accent-strong, #1f6fd6);
}

body.dark {
  --form-control-bg: rgba(15, 23, 42, 0.6);
  --form-border: rgba(148, 163, 184, 0.2);
  --form-muted: #9ab0c6;
  --form-hint-bg: rgba(15, 23, 42, 0.6);
  --file-button-bg: var(--bs-primary, #1f3b4d);
  --file-button-bg-hover: #294e63;
}

.text-accent {
  color: var(--accent);
}

.form-container,
.batches-container {
  max-width: 920px;
  margin: 24px auto 48px;
  padding: 0 16px;
}

.batches-container {
  max-width: 1200px;
}

.form-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.form-header.header-centered {
  align-items: center;
  justify-content: center;
  text-align: center;
  width: 100%;
  flex-wrap: wrap;
}

.form-subtitle {
  color: var(--form-muted);
  margin: 6px 0 0;
}

.form-subtitle.spaced {
  margin-bottom: 24px;
}

.form-header i {
  font-size: 1.6rem;
}

.form-header h1,
.page-title {
  margin: 0;
  font-size: 1.6rem;
  font-weight: 700;
}

.form-card,
.results-card,
.filter-card {
  background: var(--form-bg);
  border-radius: 18px;
  border: 1px solid var(--form-border);
  box-shadow: 0 20px 40px rgba(15, 23, 42, 0.08);
}

.form-card {
  padding: 24px;
}

.form-container .form-group {
  margin-bottom: 20px;
}

.form-container .form-group label {
  font-weight: 600;
  color: var(--form-text);
  margin-bottom: 6px;
  display: block;
}

.form-container .form-control,
.form-container .form-select,
.batches-container .form-control,
.batches-container .form-select {
  border-radius: 12px;
  border: 1px solid var(--form-border);
  padding: 12px 14px;
  background: var(--form-control-bg);
  color: var(--form-text);
}

.form-container .form-control::placeholder,
.form-container .form-control::placeholder {
  color: var(--form-muted);
  opacity: 0.7;
}

.form-container .form-control[type="file"]::file-selector-button,
.form-container .form-control[type="file"]::file-selector-button {
  margin-right: 12px;
  border-radius: 10px;
  border: none;
  background: var(--form-accent);
  color: #ffffff;
  padding: 6px 12px;
}

.form-container .floating-label-group {
  position: relative;
}

.form-container .floating-label-group label {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--form-bg);
  padding: 0 4px;
  color: var(--form-muted);
  transition: all 0.15s ease;
  pointer-events: none;
}

.form-container .floating-label-group .form-control:focus + label,
.form-container .floating-label-group .form-control:not(:placeholder-shown) + label {
  transform: translateY(-18px);
  font-size: 0.72rem;
  color: var(--form-accent);
}

.form-container .form-floating > .form-control,
.form-container .form-floating > .form-select {
  height: calc(3.5rem + 2px);
  padding: 1.625rem 0.75rem 0.625rem;
  line-height: 1.25;
}

.form-container .form-floating > .form-select {
  padding-right: 2.5rem;
}

.form-container .form-floating > label {
  padding: 0.75rem 0.75rem;
  color: var(--form-muted);
}

.form-container .form-floating > label::after {
  background-color: var(--form-control-bg);
}

.custom-file-upload {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--form-border);
  background: var(--app-bg-alt, #f8fafc);
  cursor: pointer;
}

.custom-file-upload .file-name {
  font-size: 0.9rem;
  color: var(--form-muted);
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.custom-file-upload label {
  margin: 0;
  padding: 6px 14px;
  border-radius: 10px;
  border: none;
  background: var(--file-button-bg);
  color: #ffffff;
  cursor: pointer;
  font-weight: 600;
}

.custom-file-upload label:hover {
  background: var(--file-button-bg-hover);
}

.custom-file-upload input[type="file"] {
  display: none;
}

.custom-file-upload:active {
  background-color: rgba(15, 23, 42, 0.04);
  transform: translateY(1px);
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.08);
}

.custom-file-upload.is-invalid {
  border-color: #ef4444;
  background: rgba(239, 68, 68, 0.06);
}

.error-message {
  color: #ef4444;
  font-size: 0.8rem;
  margin-top: 6px;
  display: block;
}

.form-instruction {
  color: var(--form-muted);
  margin-bottom: 16px;
}

.form-body {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-container .form-text {
  color: var(--form-muted);
}

.form-container .text-muted {
  color: var(--form-muted) !important;
}

.banca-option {
  border-radius: 12px;
}

body.dark .banca-option {
  background: rgba(15, 23, 42, 0.6);
  border-color: rgba(148, 163, 184, 0.35);
  color: #e2e8f0;
}

body.dark .banca-option:hover {
  background: rgba(78, 163, 255, 0.16);
  border-color: rgba(78, 163, 255, 0.5);
  color: #ffffff;
}

body.dark .btn-check:checked + .banca-option,
body.dark .btn-check:active + .banca-option,
body.dark .btn-check:focus + .banca-option {
  background: var(--accent);
  border-color: var(--accent-strong);
  color: #ffffff;
}

.form-hint-card {
  border: 1px solid var(--form-border);
  border-radius: 12px;
  padding: 12px;
  background: var(--form-hint-bg);
}

.shiny-button {
  width: 100%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 18px;
  border-radius: 14px;
  border: none;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #ffffff;
  background: linear-gradient(135deg, var(--form-accent), var(--form-accent-strong));
  box-shadow: 0 14px 28px rgba(31, 111, 214, 0.25);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.shiny-button:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 32px rgba(31, 111, 214, 0.35);
}

.shiny-button:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

.limit-badge {
  margin-left: 6px;
  font-size: 0.72rem;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.08);
  color: var(--form-muted);
}

.results-card,
.filter-card {
  padding: 20px;
  margin-top: 20px;
}

.results-table {
  width: 100%;
  border-collapse: collapse;
}

.results-table th,
.results-table td {
  padding: 12px 14px;
  border-bottom: 1px solid rgba(148, 163, 184, 0.2);
}

.pagination-footer {
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

body.dark .form-card,
body.dark .results-card,
body.dark .filter-card {
  background: rgba(15, 23, 42, 0.8);
  border-color: rgba(148, 163, 184, 0.2);
}

body.dark .form-container .form-control,
body.dark .form-container .form-select,
body.dark .batches-container .form-control,
body.dark .batches-container .form-select {
  border-color: var(--form-border);
  color: #e2e8f0;
}

body.dark .form-container .form-select,
body.dark .batches-container .form-select {
  color-scheme: dark;
}

body.dark .form-container input[type="date"]::-webkit-calendar-picker-indicator,
body.dark .batches-container input[type="date"]::-webkit-calendar-picker-indicator {
  filter: invert(1) brightness(1.2);
  opacity: 0.9;
}

body.dark .form-container .form-select:invalid,
body.dark .batches-container .form-select:invalid {
  color: var(--form-muted);
}

body.dark .form-container .form-select option,
body.dark .batches-container .form-select option {
  background-color: #0f172a;
  color: #e2e8f0;
}

body.dark .form-container .form-select option:disabled,
body.dark .batches-container .form-select option:disabled {
  color: var(--form-muted);
}

body.dark .form-container .form-group label {
  color: #e2e8f0;
}

body.dark .form-container .form-floating > label {
  color: var(--form-muted);
}

body.dark .custom-file-upload {
  background: rgba(15, 23, 42, 0.5);
  border-color: var(--form-border);
}

body.dark .custom-file-upload label {
  background: var(--form-accent);
  color: #ffffff;
}

body.dark .custom-file-upload label:hover {
  background: var(--form-accent-strong);
}

body.dark .custom-file-upload:active {
  background-color: rgba(255, 255, 255, 0.05);
  box-shadow: none;
}

body.dark .form-container .form-control[type="file"]::file-selector-button {
  background: var(--form-accent);
  color: #ffffff;
}

@media (max-width: 768px) {
  .form-card {
    padding: 18px;
  }

  .shiny-button {
    font-size: 0.85rem;
  }

  .custom-file-upload {
    flex-direction: column;
    align-items: flex-start;
  }

  .custom-file-upload label {
    width: 100%;
    text-align: center;
  }
}