/**
 * ===============================================================================
 * ARQUIVO: app/static/css/upload.css
 * CAMADA: Estilização / Modal de upload
 * PAPEL NO SISTEMA:
 *   - Ajusta o <dialog> do Pico CSS (overlay com blur) para o cartão do formulário.
 *   - Campos (.field), controle segmentado de fase (.segmented), zonas de
 *     arrastar e soltar (.dropzone) e caixa de pré-visualização (.preview).
 *   - Estados da dropzone: .is-dragover (arrastando) e .has-file (arquivo escolhido).
 * ===============================================================================
 */

.upload-dialog > .dialog-card {
  width: 100%;
  max-width: 600px;
  margin: 1.5rem auto;
  max-height: calc(100vh - 3rem);
  max-height: calc(100dvh - 3rem);
  display: flex;
  flex-direction: column;
  padding: 0;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  animation: rise var(--normal) var(--ease) both;
  overflow: hidden;
  box-sizing: border-box;
}

.dialog-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.35rem 1.5rem 0.5rem;
  flex-shrink: 0;
}
.dialog-head h2 {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text-strong);
}
.dialog-head p { margin: 0.25rem 0 0; font-size: 0.82rem; color: var(--muted); }

.upload-form {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  padding: 0.75rem 1.5rem 1.4rem;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
}

.form-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 0.85rem;
  min-width: 0;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin: 0;
}
.field-label {
  font-size: 0.76rem;
  font-weight: 500;
  color: var(--muted);
}
.field select,
.field input[type="number"] {
  margin: 0;
  height: 40px;
  padding-top: 0;
  padding-bottom: 0;
  font-size: 0.88rem;
}
.field-hint { margin: 0.1rem 0 0; font-size: 0.76rem; color: var(--faint); }

/* Controle segmentado (fase) */
.segmented {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
  padding: 3px;
  gap: 3px;
  border-radius: var(--radius-sm);
  background: var(--bg-elev);
  border: 1px solid var(--border);
}
.segmented label { position: relative; margin: 0; }
.segmented input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  opacity: 0;
  cursor: pointer;
}
.segmented span {
  display: grid;
  place-items: center;
  height: 32px;
  border-radius: 6px;
  font-size: 0.84rem;
  color: var(--muted);
  transition: background var(--fast) var(--ease), color var(--fast) var(--ease);
}
.segmented label:hover span { color: var(--text); }
.segmented input:checked + span {
  background: var(--surface-2);
  color: var(--text-strong);
  box-shadow: var(--shadow-sm), inset 0 0 0 1px var(--border-strong);
}
.segmented input:focus-visible + span { outline: 2px solid var(--accent-line); }
.segmented.is-disabled { opacity: 0.45; pointer-events: none; }

/* Dropzones */
.dropzone {
  position: relative;
  display: grid;
  min-width: 0;
  max-width: 100%;
  min-height: 118px;
  border-radius: var(--radius);
  border: 1px dashed var(--border-strong);
  background: var(--bg-elev);
  overflow: hidden;
  transition: border-color var(--fast) var(--ease), background var(--fast) var(--ease);
}
.dropzone:hover { border-color: var(--faint); background: var(--surface-2); }
.dropzone.is-dragover {
  border-color: var(--accent);
  border-style: solid;
  background: var(--accent-softer);
}
.dropzone > input[type="file"] {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  opacity: 0;
  cursor: pointer;
}
.dropzone:focus-within { outline: 2px solid var(--accent-line); outline-offset: 2px; }

.dz-empty,
.dz-file { grid-area: 1 / 1; }

.dz-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.15rem;
  padding: 1rem;
  text-align: center;
  pointer-events: none;
}
.dz-empty .dz-icon { width: 22px; height: 22px; margin-bottom: 0.35rem; color: var(--faint); }
.dz-empty strong { font-size: 0.86rem; font-weight: 500; color: var(--text); }
.dz-empty span { font-size: 0.74rem; color: var(--faint); }

.dz-file {
  position: relative;
  z-index: 1;
  display: none;
  align-items: center;
  gap: 0.5rem;
  margin: auto 0.75rem;
  padding: 0.6rem 0.5rem 0.6rem 0.65rem;
  border-radius: var(--radius-sm);
  background: var(--accent-softer);
  border: 1px solid var(--accent-line);
  min-width: 0;
  max-width: calc(100% - 1.5rem);
  box-sizing: border-box;
}
.dz-ok {
  width: 15px;
  height: 15px;
  color: var(--accent);
  flex-shrink: 0;
}
.dz-info {
  display: flex;
  flex-direction: column;
  min-width: 0;
  flex: 1;
  overflow: hidden;
}
.dz-name {
  display: block;
  font-size: 0.8rem;
  color: var(--text-strong);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 100%;
}
.dz-size {
  font-size: 0.7rem;
  color: var(--faint);
  white-space: nowrap;
}
.dz-clear {
  width: 26px;
  height: 26px;
  flex-shrink: 0;
}

.dropzone.has-file { border-style: solid; border-color: var(--border); }
.dropzone.has-file .dz-empty { visibility: hidden; }
.dropzone.has-file .dz-file { display: flex; }
.dropzone.has-file > input[type="file"] { pointer-events: none; }

/* Pré-visualização dos nomes */
.preview {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius);
  background: var(--bg-elev);
  border: 1px solid var(--border);
}
.preview-row {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  align-items: center;
  gap: 0.5rem;
  font-size: 0.78rem;
  min-width: 0;
}
.preview-row > span { color: var(--faint); }
.preview-row code {
  padding: 0;
  background: none;
  font-size: 0.78rem;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0;
}
.preview-warn {
  margin: 0.35rem 0 0;
  padding: 0.5rem 0.65rem;
  border-radius: var(--radius-xs);
  background: var(--warn-soft);
  color: var(--warn);
  font-size: 0.76rem;
}

.dialog-foot {
  display: flex;
  justify-content: flex-end;
  gap: 0.6rem;
  padding-top: 0.25rem;
}

@media (max-width: 560px) {
  .upload-dialog > .dialog-card {
    margin: 0.5rem auto;
    max-width: calc(100vw - 1rem);
    width: calc(100vw - 1rem);
    max-height: calc(100dvh - 1rem);
  }
  .form-row { grid-template-columns: 1fr; }
  .dialog-head { padding: 1.1rem 1.15rem 0.35rem; }
  .upload-form { padding: 0.5rem 1.15rem 1.25rem; }
  .preview-row {
    grid-template-columns: 60px minmax(0, 1fr);
    font-size: 0.74rem;
  }
  .dialog-foot {
    flex-direction: column-reverse;
  }
  .dialog-foot .btn {
    width: 100%;
  }
}