/* ===== TABS (input mode) ===== */
.input-tabs {
  display: flex;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.input-tab {
  flex: 1;
  padding: 0.6rem 0.75rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-elevated);
  border-right: 1px solid var(--border);
  transition: background 0.2s, color 0.2s;
  text-align: center;
}

.input-tab:last-child {
  border-right: none;
}

.input-tab.active {
  background: var(--bg-surface);
  color: var(--color-accent);
  box-shadow: inset 0 -2px 0 var(--color-accent);
}

.input-tab:hover:not(.active) {
  background: var(--bg-surface);
}

/* ===== TEXTAREA ===== */
.input-textarea {
  width: 100%;
  min-height: 240px;
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-family: var(--font-legal);
  font-size: 0.9rem;
  color: var(--text-legal);
  background: var(--bg-surface);
  resize: vertical;
  line-height: 1.7;
  transition: border-color 0.2s;
}

.input-textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.input-textarea::placeholder {
  color: var(--text-tertiary);
  font-family: var(--font-ui);
  font-style: italic;
}

/* ===== FILE INPUT ===== */
.input-file-area {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  border: 2px dashed var(--border-strong);
  border-radius: var(--radius-md);
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  min-height: 200px;
}

.input-file-area.active {
  display: flex;
}

.input-file-area:hover,
.input-file-area.dragover {
  border-color: var(--color-accent);
  background: rgba(37, 99, 235, 0.03);
}

.input-file-area svg {
  width: 40px;
  height: 40px;
  color: var(--text-tertiary);
  margin-bottom: 0.75rem;
}

.input-file-area p {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.input-file-area .file-hint {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  margin-top: 0.25rem;
}

.file-name-display {
  margin-top: 0.5rem;
  font-size: 0.8125rem;
  color: var(--color-accent);
  font-weight: 500;
}

/* ===== URL INPUT ===== */
.input-url-area {
  display: none;
}

.input-url-area.active {
  display: block;
}

.input-url {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  transition: border-color 0.2s;
}

.input-url:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* ===== SELECT GROUPS ===== */
.input-selects {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.select-group {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.select-group label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.select-group select {
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  font-size: 0.875rem;
  color: var(--text-primary);
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%23475569' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2rem;
}

.select-group select:focus {
  outline: none;
  border-color: var(--color-accent);
}

/* ===== BUTTONS ===== */
.btn-primary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.85rem 1.5rem;
  background: var(--color-accent);
  color: #fff;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: background 0.2s, transform 0.1s;
}

.btn-primary:hover {
  background: var(--color-accent-hover);
}

.btn-primary:active {
  transform: scale(0.98);
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.6rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-surface);
  transition: background 0.2s, border-color 0.2s;
}

.btn-secondary:hover {
  background: var(--bg-elevated);
  border-color: var(--border-strong);
}

/* ===== CHARACTER COUNTER ===== */
.char-counter {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  text-align: right;
}

.char-counter.warning {
  color: var(--sem-amarillo);
}

.char-counter.danger {
  color: var(--sem-rojo);
}

/* ===== LOADING SPINNER ===== */
.loading-overlay {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 3rem;
  text-align: center;
}

.loading-overlay.active {
  display: flex;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.loading-text {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* ===== TOAST ===== */
.toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  padding: 0.75rem 1.25rem;
  background: var(--color-primary);
  color: #fff;
  font-size: 0.875rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  z-index: 1000;
  animation: toastIn 0.3s ease, toastOut 0.3s ease 2.7s;
}

@keyframes toastIn {
  from { opacity: 0; transform: translateX(-50%) translateY(10px); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}

@keyframes toastOut {
  from { opacity: 1; }
  to   { opacity: 0; }
}

/* ===== ERROR ALERT ===== */
.error-alert {
  padding: 0.75rem 1rem;
  background: var(--sem-rojo-bg);
  border: 1px solid var(--sem-rojo);
  border-radius: var(--radius-md);
  color: var(--sem-rojo);
  font-size: 0.85rem;
  display: none;
}

.error-alert.visible {
  display: block;
}

@media (max-width: 768px) {
  .input-selects {
    grid-template-columns: 1fr;
  }
}