/* ================================================================
   FORM WRAPPER
   ================================================================ */
.form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

/* ================================================================
   LABELS
   ================================================================ */
.form-label {
  font-family: var(--font-body);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--letter-spacing-widest);
  text-transform: uppercase;
  color: var(--text-muted);
}

.form-label--required::after {
  content: ' *';
  color: var(--red-border);
}

/* ================================================================
   INPUTS
   ================================================================ */
.form-input,
.form-select,
.form-textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-regular);
  color: var(--text-main);
  background-color: var(--bg-input);
  border: var(--border-base) solid var(--border-muted);
  border-radius: var(--radius-input);
  padding: var(--space-2) var(--space-3);
  height: 36px;
  outline: none;
  transition:
    border-color     var(--transition-fast),
    background-color var(--transition-fast),
    box-shadow       var(--transition-fast);
  -webkit-appearance: none;
  appearance: none;
}

.form-textarea {
  height: auto;
  min-height: 96px;
  resize: vertical;
  line-height: var(--line-height-relaxed);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-muted);
  font-size: var(--font-size-sm);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--red-border);
  background-color: var(--bg-panel-dark);
  box-shadow: 0 0 0 1px var(--shadow-red);
}

.form-input:disabled,
.form-select:disabled,
.form-textarea:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ================================================================
   SELECT
   ================================================================ */
.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath fill='%237D8588' d='M0 0l5 6 5-6z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-3) center;
  padding-right: var(--space-8);
  cursor: pointer;
}

/* ================================================================
   ERROR STATE
   ================================================================ */
.form-group--error .form-input,
.form-group--error .form-select,
.form-group--error .form-textarea {
  border-color: var(--red-border);
}

.form-group--error .form-label {
  color: var(--danger-status);
}

.form-error {
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  color: var(--danger-status);
  letter-spacing: var(--letter-spacing-wide);
}

.form-error::before {
  content: '▸ ';
}

/* ================================================================
   HINTS
   ================================================================ */
.form-hint {
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  letter-spacing: var(--letter-spacing-wide);
}

/* ================================================================
   NUMBER INPUT
   ================================================================ */
.form-input[type="number"] {
  font-family: var(--font-mono);
  letter-spacing: var(--letter-spacing-wide);
}

.form-input[type="number"]::-webkit-inner-spin-button,
.form-input[type="number"]::-webkit-outer-spin-button {
  opacity: 0.4;
}

/* ================================================================
   RANGE SLIDER
   ================================================================ */
.form-range {
  width: 100%;
  height: 4px;
  background: var(--border-muted);
  border-radius: 0;
  outline: none;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
}

.form-range::-webkit-slider-thumb {
  width: 14px;
  height: 14px;
  background: var(--red-main);
  border: 1px solid var(--red-border);
  border-radius: var(--radius-input);
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
}

.form-range::-moz-range-thumb {
  width: 14px;
  height: 14px;
  background: var(--red-main);
  border: 1px solid var(--red-border);
  border-radius: var(--radius-input);
  cursor: pointer;
}

.form-range:focus {
  outline: none;
}

/* ================================================================
   COVER UPLOAD ZONE
   ================================================================ */
.upload-zone {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding: var(--space-8);
  border: var(--border-base) dashed var(--border-strong);
  border-radius: var(--radius-panel);
  background-color: var(--bg-panel-dark);
  cursor: pointer;
  transition:
    border-color     var(--transition-fast),
    background-color var(--transition-fast);
  text-align: center;
}

.upload-zone:hover,
.upload-zone--active {
  border-color: var(--red-border);
  background-color: var(--red-dark);
}

.upload-zone__label {
  font-family: var(--font-body);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--letter-spacing-widest);
  text-transform: uppercase;
  color: var(--text-muted);
}

.upload-zone__hint {
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  opacity: 0.6;
}

/* ================================================================
   SEARCH INPUT
   ================================================================ */
.search-input {
  position: relative;
  display: flex;
  align-items: center;
}

.search-input__field {
  width: 100%;
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  color: var(--text-main);
  background-color: var(--bg-input);
  border: var(--border-base) solid var(--border-muted);
  border-radius: var(--radius-input);
  padding: var(--space-2) var(--space-3) var(--space-2) var(--space-8);
  height: 32px;
  outline: none;
  letter-spacing: var(--letter-spacing-wide);
  transition: border-color var(--transition-fast);
  -webkit-appearance: none;
  appearance: none;
}

.search-input__field::placeholder {
  color: var(--text-muted);
  font-size: var(--font-size-xs);
  letter-spacing: var(--letter-spacing-widest);
  text-transform: uppercase;
}

.search-input__field:focus {
  border-color: var(--red-border);
  box-shadow: 0 0 0 1px var(--shadow-red);
}

.search-input__icon {
  position: absolute;
  left: var(--space-3);
  color: var(--text-muted);
  pointer-events: none;
  font-size: var(--font-size-sm);
}

/* ================================================================
   FORM ACTIONS BAR
   ================================================================ */
.form-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding-top: var(--space-6);
  border-top: var(--border-base) solid var(--border-muted);
  margin-top: var(--space-6);
}

.form-actions--split {
  justify-content: space-between;
}

/* ================================================================
   ARCHIVE FORM LAYOUT
   ================================================================ */
.archive-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.archive-form__grid {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: var(--space-6);
  align-items: start;
}

.archive-form__section {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.archive-form__section-title {
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--letter-spacing-widest);
  text-transform: uppercase;
  color: var(--red-border);
  padding-bottom: var(--space-2);
  border-bottom: var(--border-base) solid var(--border-muted);
}

.archive-form__preview {
  position: sticky;
  top: var(--space-4);
}

/* ================================================================
   FORM STATUS BAR
   ================================================================ */
.form-status-bar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-4);
  background-color: var(--bg-panel-dark);
  border: var(--border-base) solid var(--border-muted);
  border-radius: var(--radius-input);
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  letter-spacing: var(--letter-spacing-wide);
  color: var(--text-muted);
  text-transform: uppercase;
}

.form-status-bar--error {
  border-color: var(--red-border);
  color: var(--danger-status);
}

.form-status-bar--success {
  border-color: var(--border-strong);
  color: var(--text-main);
}

.form-status-bar--loading {
  border-color: var(--border-strong);
  color: var(--text-muted);
}

.form-status-bar--pending {
  border-color: var(--red-border);
  color: var(--red-border);
}

/* ================================================================
   UPLOAD ZONE — FILE INPUT HIDING
   ================================================================ */
.upload-zone {
  position: relative;
}

.upload-zone input[type="file"] {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* ================================================================
   COVER UPLOAD
   ================================================================ */
.cover-upload {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.cover-upload__preview {
  width: 100%;
  aspect-ratio: 3 / 4;
  background-color: var(--bg-panel-dark);
  border: var(--border-base) solid var(--border-muted);
  border-radius: var(--radius-input);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.cover-upload__preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.cover-upload__meta {
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  letter-spacing: var(--letter-spacing-wide);
  text-transform: uppercase;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.cover-upload__status {
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  letter-spacing: var(--letter-spacing-wide);
  text-transform: uppercase;
  color: var(--text-muted);
}

.cover-upload__status--uploading {
  color: var(--text-muted);
}

.cover-upload__status--error {
  color: var(--danger-status);
}

.cover-upload__status--success {
  color: var(--text-main);
}

/* ================================================================
   FIELD ERRORS
   ================================================================ */
.field-error-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.field-error {
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  color: var(--danger-status);
  letter-spacing: var(--letter-spacing-wide);
}

.field-error::before {
  content: '▸ ';
}

/* ================================================================
   FORM VALIDATION SUMMARY
   ================================================================ */
.form-validation-summary {
  border: var(--border-base) solid var(--red-border);
  border-radius: var(--radius-panel);
  background-color: var(--red-dark);
  padding: var(--space-4);
}

.form-validation-summary__title {
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--letter-spacing-widest);
  text-transform: uppercase;
  color: var(--red-border);
  margin-bottom: var(--space-2);
}

.form-validation-summary__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.form-validation-summary__item {
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  color: var(--danger-status);
  letter-spacing: var(--letter-spacing-wide);
}

.form-validation-summary__item::before {
  content: '▸ ';
}

/* ================================================================
   RESPONSIVE — Grids de formularios
   ================================================================ */

/* 980px — preview del formulario baja al fondo */
@media (max-width: 980px) {
  .archive-form__grid {
    grid-template-columns: 1fr;
  }
  .archive-form__preview {
    position: static;
  }
}

/* 760px — filas de dos columnas a una sola columna */
@media (max-width: 760px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}