/* ============================================================
   BOTTONI
   ============================================================ */

.btn {
  position: relative;
  isolation: isolate;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  min-height: 2.5rem;
  padding: 0.625rem 1.5rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.01em;
  text-decoration: none;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  transition: background-color var(--transition), color var(--transition),
              border-color var(--transition), box-shadow var(--transition),
              transform 0.1s var(--ease-standard);
  white-space: nowrap;
  user-select: none;
}

/* State layer: hover 8%, focus/press 12% */
.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background-color: currentColor;
  opacity: 0;
  pointer-events: none;
  z-index: -1;
  transition: opacity var(--transition);
}
.btn:hover::before         { opacity: 0.08; }
.btn:focus-visible::before,
.btn:active::before        { opacity: 0.12; }
.btn:active                { transform: scale(0.98); }

.btn:focus-visible { border-radius: var(--radius-full); }

.btn .icon { font-size: 1.25rem; margin-inline: -0.25rem 0; }

.btn:disabled,
.btn[aria-disabled="true"] {
  opacity: 0.38;
  cursor: not-allowed;
  pointer-events: none;
}

/* Filled — primario */
.btn-primary {
  background-color: var(--md-primary);
  color: var(--md-on-primary);
}
.btn-primary:hover {
  color: var(--md-on-primary);
  box-shadow: var(--elev-1);
}

/* Filled — accento (testo scuro per contrasto AA sull'arancione) */
.btn-accent {
  background-color: var(--color-accent);
  color: #1f1000;
}
.btn-accent:hover {
  color: #1f1000;
  box-shadow: var(--elev-1);
}

/* Tonal */
.btn-tonal {
  background-color: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
}
.btn-tonal:hover {
  color: var(--md-on-secondary-container);
  box-shadow: var(--elev-1);
}

/* Outlined */
.btn-outline {
  background-color: transparent;
  color: var(--md-primary);
  border-color: var(--md-outline);
}
.btn-outline:hover {
  color: var(--md-primary);
}

/* Outlined bianco (su sfondi scuri) */
.btn-outline-white {
  background-color: transparent;
  color: #ffffff;
  border-color: rgba(255,255,255,0.7);
}
.btn-outline-white:hover {
  color: #ffffff;
  border-color: #ffffff;
}

/* Text */
.btn-ghost {
  background-color: transparent;
  color: var(--md-primary);
  padding-inline: 0.875rem;
}
.btn-ghost:hover {
  color: var(--md-primary);
}

/* Danger */
.btn-danger {
  background-color: var(--color-error);
  color: #ffffff;
}
.btn-danger:hover {
  color: #ffffff;
  box-shadow: var(--elev-1);
}

/* Dimensioni */
.btn-sm {
  min-height: 2rem;
  padding: 0.375rem 1rem;
  font-size: 0.8125rem;
}
.btn-lg {
  min-height: 3.25rem;
  padding: 0.875rem 2rem;
  font-size: 1.0625rem;
}
.btn-full {
  width: 100%;
}

/* ============================================================
   FAB (Floating Action Button)
   ============================================================ */

.fab {
  position: fixed;
  right: var(--space-md);
  bottom: calc(var(--space-md) + env(safe-area-inset-bottom));
  z-index: 180;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  min-width: 3.5rem;
  height: 3.5rem;
  padding: 0 1rem;
  border-radius: var(--radius-md);
  background-color: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
  box-shadow: var(--elev-3);
  font-weight: 600;
  font-size: 0.9375rem;
  text-decoration: none;
  isolation: isolate;
  transition: box-shadow var(--transition), transform 0.3s var(--ease-emphasized),
              opacity 0.3s var(--ease-emphasized);
}
.fab::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background-color: currentColor;
  opacity: 0;
  z-index: -1;
  transition: opacity var(--transition);
}
.fab:hover { color: var(--md-on-secondary-container); box-shadow: 0 2px 3px rgba(0,0,0,0.3), 0 6px 10px 4px rgba(0,0,0,0.15); }
.fab:hover::before { opacity: 0.08; }
.fab:active::before,
.fab:focus-visible::before { opacity: 0.12; }
.fab:focus-visible { border-radius: var(--radius-md); }
.fab-extended { padding: 0 1.25rem 0 1rem; }

/* Su mobile sta sopra la navigation bar */
@media (max-width: 767px) {
  .fab {
    bottom: calc(var(--bottom-nav-height) + var(--space-md) + env(safe-area-inset-bottom));
  }
}

/* Su desktop il CTA è già nella top app bar */
@media (min-width: 768px) {
  .fab { display: none; }
}

/* ============================================================
   SNACKBAR (toast)
   ============================================================ */

.snackbar-container {
  position: fixed;
  left: 50%;
  bottom: calc(var(--space-lg) + env(safe-area-inset-bottom));
  transform: translateX(-50%);
  z-index: 9000;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  pointer-events: none;
  width: min(calc(100% - 2rem), 560px);
}

@media (max-width: 767px) {
  .snackbar-container {
    bottom: calc(var(--bottom-nav-height) + var(--space-md) + env(safe-area-inset-bottom));
  }
}

.snackbar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  width: 100%;
  min-height: 3rem;
  padding: 0.75rem 1rem;
  background-color: var(--md-inverse-surface);
  color: #f2f0f7;
  border-radius: var(--radius-xs);
  box-shadow: var(--elev-3);
  font-size: 0.875rem;
  font-weight: 500;
  pointer-events: auto;
  opacity: 0;
  transform: translateY(0.75rem);
  transition: opacity 0.2s var(--ease-standard), transform 0.3s var(--ease-emphasized);
}
.snackbar.is-visible { opacity: 1; transform: translateY(0); }
.snackbar .icon { font-size: 1.25rem; }
.snackbar-success .icon { color: #8fd6a4; }
.snackbar-error   .icon { color: #ffb4ab; }
.snackbar-info    .icon { color: #bcc2ff; }

/* ============================================================
   CARD
   ============================================================ */

.card {
  background-color: var(--md-surface-container-lowest);
  border-radius: var(--radius-md);
  box-shadow: var(--elev-1);
  overflow: hidden;
}

.card-outlined {
  box-shadow: none;
  border: 1px solid var(--md-outline-variant);
}

.card-filled {
  box-shadow: none;
  background-color: var(--md-surface-container-highest);
}

.card-body {
  padding: var(--space-lg);
}

.card-body p { max-width: none; }

.card-header {
  padding: var(--space-lg) var(--space-lg) 0;
}

.card-footer {
  padding: var(--space-md) var(--space-lg) var(--space-lg);
}

.card-img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

/* Card attività */
.card-attivita {
  position: relative;
  transition: box-shadow var(--transition);
}
.card-attivita::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background-color: var(--md-primary);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}
.card-attivita:hover {
  box-shadow: var(--elev-2);
}
.card-attivita:hover::after {
  opacity: 0.05;
}

/* Card unità (Chi siamo — homepage) */
.card-unit {
  display: grid;
  grid-template-columns: auto 1fr;
  overflow: hidden;
}
.card-unit-accent {
  width: 6px;
}

/* ============================================================
   BADGE
   ============================================================ */

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: var(--radius-sm);
  line-height: 1.4;
  white-space: nowrap;
}

.badge-primary {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
}
.badge-accent {
  background-color: #fff0e8;
  color: var(--color-accent-dark);
}
.badge-success {
  background-color: var(--color-success-bg);
  color: var(--color-success);
}
.badge-error {
  background-color: var(--color-error-bg);
  color: var(--color-error);
}
.badge-neutral {
  background-color: #f0f0f0;
  color: var(--color-text-muted);
}

/* Badge per tipo attività */
.badge-uscita_giorno { background-color: #e8f4fd; color: #1a6fa0; }
.badge-campo         { background-color: #eaf4ee; color: #2d7a47; }
.badge-riunione      { background-color: var(--color-primary-light); color: var(--color-primary); }
.badge-evento        { background-color: #fff0e8; color: var(--color-accent-dark); }

/* ============================================================
   FORM
   ============================================================ */

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
}

.form-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
  transition: color var(--transition);
}

.form-group:focus-within > .form-label {
  color: var(--md-primary);
}

.form-label .required {
  color: var(--color-error);
  margin-left: 2px;
}

/* Campo "outlined" Material 3 */
.form-control {
  width: 100%;
  min-height: 3.5rem;
  padding: 0.875rem 1rem;
  font-size: 1rem;
  color: var(--color-text);
  background-color: var(--md-surface-container-lowest);
  border: 1px solid var(--md-outline);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition), box-shadow var(--transition);
  appearance: none;
}

.form-control:hover {
  border-color: var(--color-text);
}

.form-control:focus {
  outline: none;
  border-color: var(--md-primary);
  box-shadow: inset 0 0 0 1px var(--md-primary);
}

.form-control:disabled {
  opacity: 0.38;
  cursor: not-allowed;
}

.form-control:invalid:not(:placeholder-shown) {
  border-color: var(--color-error);
}

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

textarea.form-control {
  resize: vertical;
  min-height: 5rem;
}

select.form-control {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236b7280' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.875rem center;
  padding-right: 2.5rem;
}

.form-hint {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.form-error {
  font-size: 0.8125rem;
  color: var(--color-error);
  display: none;
}

.form-group.has-error .form-control {
  border-color: var(--color-error);
  box-shadow: inset 0 0 0 1px var(--color-error);
}
.form-group.has-error > .form-label {
  color: var(--color-error);
}
.form-group.has-error .form-error {
  display: block;
}

/* Checkbox e radio */
.form-check {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.5rem 0.75rem;
  margin-inline: -0.75rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color var(--transition);
}

.form-check:hover {
  background-color: rgba(6, 25, 145, 0.05);
}

.form-check input[type="checkbox"],
.form-check input[type="radio"] {
  flex-shrink: 0;
  width: 1.125rem;
  height: 1.125rem;
  margin-top: 0.125rem;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.form-check-label {
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--color-text);
}

/* Fieldset sezione */
.form-section {
  padding: var(--space-lg);
  border: none;
  background-color: var(--md-surface-container-low);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-lg);
}

.form-section legend {
  float: left;
  width: 100%;
  padding: 0;
  margin-bottom: var(--space-md);
  font-weight: 700;
  font-size: 1.0625rem;
  color: var(--md-primary);
}

.form-section legend + * {
  clear: both;
}

/* Griglia 2 colonne per i campi */
.form-grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0 var(--space-lg);
}

@media (min-width: 600px) {
  .form-grid-2 {
    grid-template-columns: 1fr 1fr;
  }
}

/* ============================================================
   ALERT / NOTIFICHE
   ============================================================ */

.alert {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  border-radius: 12px;
  font-size: 0.9375rem;
  border: none;
}

.alert-success {
  background-color: var(--color-success-bg);
  color: #0b3d1e;
}

.alert-error {
  background-color: var(--color-error-bg);
  color: #410002;
}

.alert-info {
  background-color: var(--md-primary-container);
  color: var(--md-on-primary-container);
}

/* ============================================================
   MODAL
   ============================================================ */

.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(0,0,0,0.32);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  z-index: 1000;
  padding: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s var(--ease-standard), visibility 0.2s var(--ease-standard);
}

.modal-backdrop.is-open {
  opacity: 1;
  visibility: visible;
}

@media (min-width: 640px) {
  .modal-backdrop {
    align-items: center;
    padding: var(--space-lg);
  }
}

/* Bottom sheet su mobile, dialog su desktop */
.modal {
  background-color: var(--md-surface-container-low);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  box-shadow: var(--elev-3);
  width: 100%;
  max-width: 640px;
  max-height: 92vh;
  overflow-y: auto;
  transform: translateY(100%);
  transition: transform 0.35s var(--ease-emphasized);
}

.modal::before {
  content: '';
  display: block;
  width: 32px;
  height: 4px;
  margin: 0.875rem auto 0;
  border-radius: var(--radius-full);
  background-color: var(--md-outline);
  opacity: 0.4;
}

.modal-backdrop.is-open .modal {
  transform: translateY(0);
}

@media (min-width: 640px) {
  .modal {
    border-radius: var(--radius-lg);
    max-height: 90vh;
    transform: scale(0.92);
    opacity: 0;
    transition: transform 0.3s var(--ease-emphasized), opacity 0.2s var(--ease-standard);
  }
  .modal::before { display: none; }
  .modal-backdrop.is-open .modal {
    transform: scale(1);
    opacity: 1;
  }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg) var(--space-lg) var(--space-md);
  position: sticky;
  top: 0;
  background-color: var(--md-surface-container-low);
  z-index: 1;
}

.modal-title {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--color-text);
}

.modal-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  transition: background-color var(--transition), color var(--transition);
  flex-shrink: 0;
}
.modal-close:hover {
  background-color: rgba(26,26,46,0.08);
  color: var(--color-text);
}

.modal-body {
  padding: 0 var(--space-lg) var(--space-md);
}

.modal-footer {
  padding: var(--space-md) var(--space-lg) var(--space-lg);
  position: sticky;
  bottom: 0;
  background-color: var(--md-surface-container-low);
  display: flex;
  justify-content: flex-end;
  gap: var(--space-sm);
}

/* ============================================================
   SPINNER / LOADING
   ============================================================ */

.spinner {
  display: inline-block;
  width: 1.5rem;
  height: 1.5rem;
  border: 3px solid var(--md-primary-container);
  border-top-color: var(--md-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.btn .spinner {
  width: 1.125rem;
  height: 1.125rem;
  border-width: 2px;
  border-color: currentColor;
  border-top-color: transparent;
}

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

.loading-overlay {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-2xl);
  color: var(--color-text-muted);
  gap: var(--space-md);
}

/* ============================================================
   EMPTY STATE
   ============================================================ */

.empty-state {
  text-align: center;
  padding: var(--space-2xl) var(--space-lg);
  color: var(--color-text-muted);
}

.empty-state-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 4.5rem;
  height: 4.5rem;
  border-radius: var(--radius-full);
  background-color: var(--md-surface-container);
  font-size: 2rem;
  margin-bottom: var(--space-md);
}

.empty-state-icon .icon {
  font-size: 2.25rem;
  color: var(--color-text-muted);
}

.card-value-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-md);
  line-height: 1;
}

/* ============================================================
   PILL FILTRI
   ============================================================ */

.filter-pills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

/* Filter chip Material 3 */
.pill {
  position: relative;
  isolation: isolate;
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  height: 2rem;
  padding: 0 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  border: 1px solid var(--md-outline);
  background-color: transparent;
  color: var(--color-text);
  cursor: pointer;
  transition: border-color var(--transition), background-color var(--transition),
              color var(--transition), padding var(--transition);
}

.pill::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background-color: currentColor;
  opacity: 0;
  z-index: -1;
  transition: opacity var(--transition);
}
.pill:hover::before { opacity: 0.08; }
.pill:focus-visible { border-radius: var(--radius-sm); }

.pill.active {
  border-color: transparent;
  background-color: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
  padding-left: 0.5rem;
}

.pill.active::after {
  content: 'check';
  order: -1;
  font-family: 'Material Symbols Rounded';
  font-size: 1.125rem;
  line-height: 1;
}

/* ============================================================
   TABELLA (admin)
   ============================================================ */

.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-md);
  background-color: var(--md-surface-container-lowest);
  box-shadow: var(--elev-1);
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
}

.table thead {
  background-color: var(--md-surface-container);
}

.table th {
  padding: 0.875rem var(--space-md);
  text-align: left;
  font-weight: 600;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.table td {
  padding: 0.875rem var(--space-md);
  border-top: 1px solid var(--md-outline-variant);
  vertical-align: middle;
}

.table tbody tr {
  transition: background-color var(--transition);
}

.table tbody tr:hover {
  background-color: rgba(6, 25, 145, 0.04);
}

/* ============================================================
   GALLERY
   ============================================================ */

.gallery-grid {
  columns: 1;
  column-gap: var(--space-md);
  margin-top: var(--space-xl);
}

@media (min-width: 600px) {
  .gallery-grid { columns: 2; }
}

@media (min-width: 900px) {
  .gallery-grid { columns: 3; }
}

.gallery-item {
  break-inside: avoid;
  margin-bottom: var(--space-md);
  cursor: pointer;
  border-radius: var(--radius-md);
  overflow: hidden;
  display: block;
}

.gallery-item img {
  width: 100%;
  display: block;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.gallery-item:hover img,
.gallery-item:focus img {
  transform: scale(1.03);
  box-shadow: var(--shadow-md);
}

.gallery-item:focus {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

/* Lightbox */

.gallery-lightbox {
  position: fixed;
  inset: 0;
  background-color: rgba(10, 10, 20, 0.92);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
}

.gallery-lightbox[hidden] {
  display: none;
}

.lightbox-content {
  max-width: min(90vw, 900px);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
}

.lightbox-img {
  max-width: 100%;
  max-height: 80vh;
  border-radius: var(--radius-md);
  object-fit: contain;
  box-shadow: var(--shadow-lg);
}

.lightbox-caption {
  font-family: var(--font-serif);
  font-style: italic;
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.9375rem;
  text-align: center;
  max-width: none;
}

.lightbox-close {
  position: absolute;
  top: var(--space-lg);
  right: var(--space-lg);
  color: #ffffff;
  opacity: 0.8;
  padding: var(--space-sm);
  border-radius: var(--radius-full);
  display: flex;
  background-color: rgba(255, 255, 255, 0.08);
  transition: opacity var(--transition), background-color var(--transition);
}

.lightbox-close:hover {
  opacity: 1;
  background-color: rgba(255, 255, 255, 0.12);
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  color: #ffffff;
  opacity: 0.8;
  padding: var(--space-md);
  border-radius: var(--radius-full);
  display: flex;
  background-color: rgba(255, 255, 255, 0.08);
  transition: opacity var(--transition), background-color var(--transition);
}

.lightbox-nav:hover {
  opacity: 1;
  background-color: rgba(255, 255, 255, 0.12);
}

.lightbox-nav:disabled {
  opacity: 0.2;
  cursor: default;
}

.lightbox-prev { left: var(--space-lg); }
.lightbox-next { right: var(--space-lg); }

@media (max-width: 600px) {
  .lightbox-prev { left: var(--space-sm); }
  .lightbox-next { right: var(--space-sm); }
}