/* ============================================================
   Fiflouu Design System · Formularios
   Depende de: colors_and_type.css
   ============================================================ */

/* ---------- CAMPO CONTENEDOR ---------- */

.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  width: 100%;
}
.field__label {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--fg-1);
  line-height: 1.35;
}
.field__label .field__required { color: var(--error-500); margin-left: 2px; }
.field__label .field__optional {
  margin-left: var(--space-2);
  font-weight: var(--fw-regular);
  color: var(--fg-3);
  font-size: var(--fs-xs);
}
.field__hint {
  font-size: var(--fs-sm);
  color: var(--fg-3);
  line-height: 1.4;
}
.field__error {
  font-size: var(--fs-sm);
  color: var(--error-600);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  line-height: 1.4;
}
.field__error svg { width: 14px; height: 14px; flex-shrink: 0; }
.field--inline { flex-direction: row; align-items: center; gap: var(--space-3); }

/* ---------- INPUT / TEXTAREA / SELECT base ---------- */

.input, .textarea, .select {
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  color: var(--fg-1);
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  width: 100%;
  transition:
    border-color var(--dur-fast) var(--ease-standard),
    box-shadow var(--dur-fast) var(--ease-standard),
    background var(--dur-fast) var(--ease-standard);
}
.input, .select { height: 44px; padding: 0 var(--space-4); }
.textarea { padding: var(--space-3) var(--space-4); min-height: 112px; resize: vertical; line-height: var(--lh-normal); }

.input::placeholder, .textarea::placeholder { color: var(--fg-4); }

.input:hover, .textarea:hover, .select:hover { border-color: var(--border-strong); }

.input:focus, .textarea:focus, .select:focus {
  outline: none;
  border-color: var(--purple-500);
  box-shadow: var(--ring-focus);
}

.input.is-error, .textarea.is-error, .select.is-error { border-color: var(--error-500); }
.input.is-error:focus, .textarea.is-error:focus, .select.is-error:focus {
  box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.22);
}

.input[disabled], .textarea[disabled], .select[disabled] {
  background: var(--gray-100);
  color: var(--fg-4);
  cursor: not-allowed;
  border-color: var(--border-subtle);
}

/* tamaños alternativos */
.input--sm, .select--sm { height: 36px; font-size: var(--fs-sm); padding: 0 var(--space-3); border-radius: var(--radius-sm); }
.input--lg, .select--lg { height: 52px; font-size: var(--fs-md); padding: 0 var(--space-5); }

/* select — flecha personalizada */
.select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2355555F' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right var(--space-4) center;
  padding-right: 40px;
}

/* ---------- INPUT CON ICONO / ADORNO ---------- */

.input-wrap {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
}
.input-wrap .input { padding-left: 42px; }
.input-wrap.has-trailing .input { padding-right: 42px; padding-left: var(--space-4); }
.input-wrap.has-both .input { padding-left: 42px; padding-right: 42px; }
.input-wrap__icon {
  position: absolute;
  left: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  display: inline-flex;
  color: var(--fg-3);
  pointer-events: none;
}
.input-wrap__icon svg { width: 18px; height: 18px; stroke-width: 1.75; }
.input-wrap__trailing {
  position: absolute;
  right: var(--space-3);
  top: 50%;
  transform: translateY(-50%);
  display: inline-flex;
  color: var(--fg-3);
}
.input-wrap__trailing button { cursor: pointer; background: none; border: none; padding: 4px; color: inherit; border-radius: var(--radius-xs); }
.input-wrap__trailing button:hover { color: var(--fg-1); background: var(--bg-sunken); }

/* ---------- CHECKBOX ---------- */

.checkbox {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  cursor: pointer;
  font-size: var(--fs-sm);
  color: var(--fg-1);
  line-height: 1.4;
  user-select: none;
  position: relative;
}
.checkbox input {
  position: absolute;
  opacity: 0;
  width: 0; height: 0;
  pointer-events: none;
}
.checkbox__box {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  border: 1.5px solid var(--border-strong);
  background: var(--bg-surface);
  border-radius: var(--radius-xs);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background var(--dur-fast) var(--ease-standard), border-color var(--dur-fast) var(--ease-standard);
}
.checkbox__box svg { width: 14px; height: 14px; stroke: #fff; stroke-width: 3; fill: none; opacity: 0; }
.checkbox input:checked ~ .checkbox__box { background: var(--purple-600); border-color: var(--purple-600); }
.checkbox input:checked ~ .checkbox__box svg { opacity: 1; }
.checkbox input:indeterminate ~ .checkbox__box { background: var(--purple-600); border-color: var(--purple-600); }
.checkbox input:indeterminate ~ .checkbox__box::after {
  content: "";
  width: 10px;
  height: 2px;
  background: #fff;
  border-radius: 1px;
}
.checkbox input:focus-visible ~ .checkbox__box { box-shadow: var(--ring-focus); }
.checkbox input:disabled ~ .checkbox__box { background: var(--gray-100); border-color: var(--border-subtle); }
.checkbox input:disabled ~ * { color: var(--fg-4); cursor: not-allowed; }
.checkbox.is-error .checkbox__box { border-color: var(--error-500); }

/* ---------- RADIO ---------- */

.radio {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  cursor: pointer;
  font-size: var(--fs-sm);
  color: var(--fg-1);
  line-height: 1.4;
  user-select: none;
  position: relative;
}
.radio input {
  position: absolute;
  opacity: 0;
  width: 0; height: 0;
  pointer-events: none;
}
.radio__dot {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  border: 1.5px solid var(--border-strong);
  background: var(--bg-surface);
  border-radius: 99px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background var(--dur-fast) var(--ease-standard), border-color var(--dur-fast) var(--ease-standard);
}
.radio__dot::after {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 99px;
  background: #fff;
  transform: scale(0);
  transition: transform var(--dur-fast) var(--ease-standard);
}
.radio input:checked ~ .radio__dot { background: var(--purple-600); border-color: var(--purple-600); }
.radio input:checked ~ .radio__dot::after { transform: scale(1); }
.radio input:focus-visible ~ .radio__dot { box-shadow: var(--ring-focus); }
.radio input:disabled ~ .radio__dot { background: var(--gray-100); border-color: var(--border-subtle); }
.radio input:disabled ~ * { color: var(--fg-4); cursor: not-allowed; }

/* grupo de radios */
.radio-group { display: flex; flex-direction: column; gap: var(--space-3); }
.radio-group--horizontal { flex-direction: row; flex-wrap: wrap; gap: var(--space-5); }

/* ---------- SWITCH / TOGGLE ---------- */

.switch {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  cursor: pointer;
  font-size: var(--fs-sm);
  color: var(--fg-1);
  user-select: none;
  position: relative;
}
.switch input {
  position: absolute;
  opacity: 0;
  width: 0; height: 0;
  pointer-events: none;
}
.switch__track {
  width: 40px;
  height: 22px;
  background: var(--gray-300);
  border-radius: 999px;
  position: relative;
  flex-shrink: 0;
  transition: background var(--dur-fast) var(--ease-standard);
}
.switch__track::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  border-radius: 99px;
  background: #fff;
  top: 2px;
  left: 2px;
  box-shadow: var(--shadow-sm);
  transition: transform var(--dur-base) var(--ease-standard);
}
.switch input:checked ~ .switch__track { background: var(--purple-600); }
.switch input:checked ~ .switch__track::after { transform: translateX(18px); }
.switch input:focus-visible ~ .switch__track { box-shadow: var(--ring-focus); }
.switch input:disabled ~ .switch__track { background: var(--gray-200); opacity: 0.6; cursor: not-allowed; }

/* ---------- FILE UPLOAD ---------- */

.file-upload {
  display: block;
  width: 100%;
}
.file-upload input[type="file"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
  pointer-events: none;
}
.file-upload__dropzone {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-6) var(--space-5);
  background: var(--bg-canvas);
  border: 1.5px dashed var(--border-default);
  border-radius: var(--radius-md);
  color: var(--fg-2);
  font-size: var(--fs-sm);
  text-align: center;
  cursor: pointer;
  transition: border-color var(--dur-fast) var(--ease-standard), background var(--dur-fast) var(--ease-standard);
}
.file-upload__dropzone:hover {
  border-color: var(--purple-500);
  background: var(--purple-50);
}
.file-upload__dropzone svg { width: 24px; height: 24px; color: var(--purple-600); stroke-width: 1.5; }
.file-upload__dropzone strong { color: var(--fg-1); font-weight: var(--fw-semibold); }
.file-upload.is-dragover .file-upload__dropzone {
  border-color: var(--purple-600);
  background: var(--purple-50);
}
.file-upload__file {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  font-size: var(--fs-sm);
}
.file-upload__file svg { color: var(--purple-600); }
.file-upload__file__meta { flex: 1; display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.file-upload__file__name { font-weight: var(--fw-semibold); color: var(--fg-1); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-upload__file__size { color: var(--fg-3); font-size: var(--fs-xs); }
.file-upload__file button {
  background: none; border: none; cursor: pointer;
  color: var(--fg-3); padding: 4px; border-radius: var(--radius-xs);
}
.file-upload__file button:hover { color: var(--error-600); background: var(--error-50); }

/* ---------- FORMULARIOS — LAYOUT ---------- */

.form-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}
.form-grid--2col { grid-template-columns: 1fr 1fr; }
@media (max-width: 639px) {
  .form-grid--2col { grid-template-columns: 1fr; }
}
.form-actions {
  display: flex;
  gap: var(--space-3);
  justify-content: flex-end;
  padding-top: var(--space-4);
  border-top: 1px solid var(--border-subtle);
  margin-top: var(--space-2);
}
.form-actions--start { justify-content: flex-start; }
.form-actions--block .btn { flex: 1; }