/* components.css */
/* Componentes reutilizables: botones, inputs, cards, alerts, spinner */

/* ========================================
   BOTONES
======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 10px 20px;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 500;
  line-height: 1;
  cursor: pointer;
  border: none;
  transition: background var(--transition-fast), color var(--transition-fast),
              box-shadow var(--transition-fast), opacity var(--transition-fast);
  white-space: nowrap;
  text-decoration: none;
}

/* Primary — navy */
.btn-primary {
  background: var(--color-primary);
  color: #ffffff;
}
.btn-primary:hover {
  background: var(--color-primary-mid);
  color: #ffffff;
}
.btn-primary:active {
  background: #071020;
}

/* Secondary — outlined */
.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}
.btn-secondary:hover {
  background: var(--color-primary);
  color: #ffffff;
}

/* Ghost — subtle */
.btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}
.btn-ghost:hover {
  background: var(--color-divider);
  color: var(--color-text);
}

/* Danger */
.btn-danger {
  background: var(--color-danger);
  color: #ffffff;
}
.btn-danger:hover {
  background: #c0392b;
}

/* Accent — gold */
.btn-accent {
  background: var(--color-accent);
  color: var(--color-primary);
}
.btn-accent:hover {
  background: var(--color-accent-light);
}

/* Tamaños */
.btn-sm {
  padding: 6px 14px;
  font-size: var(--text-sm);
}
.btn-md {
  padding: 10px 20px;
  font-size: var(--text-base);
}
.btn-lg {
  padding: 14px 28px;
  font-size: var(--text-md);
}

/* Estado disabled */
.btn:disabled,
.btn[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* ========================================
   INPUTS, TEXTAREAS, SELECTS
======================================== */
.input,
.textarea,
.select {
  display: block;
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-surface);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  appearance: none;
}

.input:focus,
.textarea:focus,
.select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(201,168,76,0.15);
}

/* Estado error */
.input.is-error,
.textarea.is-error,
.select.is-error {
  border-color: var(--color-danger);
}
.input.is-error:focus,
.textarea.is-error:focus,
.select.is-error:focus {
  box-shadow: 0 0 0 3px rgba(217,83,79,0.15);
}

/* Estado disabled */
.input:disabled,
.textarea:disabled,
.select:disabled {
  background: var(--color-divider);
  color: var(--color-text-soft);
  cursor: not-allowed;
}

.textarea {
  min-height: 100px;
  resize: vertical;
}

/* Select con flecha */
.select {
  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 fill='%235a5750' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
  cursor: pointer;
}

/* Label wrapper */
.field {
  display: block;
  margin-bottom: var(--space-md);
}
.field-label {
  display: block;
  margin-bottom: var(--space-xs);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
}
.field-hint {
  margin-top: var(--space-xs);
  font-size: var(--text-xs);
  color: var(--color-text-soft);
}
.field-error {
  margin-top: var(--space-xs);
  font-size: var(--text-xs);
  color: var(--color-danger);
}

/* ========================================
   CARD
======================================== */
.card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  padding: var(--space-lg);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-divider);
}

.card-title {
  font-size: var(--text-md);
  font-weight: 600;
  color: var(--color-primary);
}

.card-body {
  /* vacío — slot para contenido */
}

.card-footer {
  margin-top: var(--space-lg);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-divider);
  display: flex;
  gap: var(--space-sm);
  justify-content: flex-end;
}

/* ========================================
   ALERTS
======================================== */
.alert {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: var(--text-sm);
  line-height: 1.5;
}

/* Ocultar alert vacío */
.alert:empty {
  display: none;
}

.alert-success {
  background: #edf7f2;
  color: var(--color-success);
  border: 1px solid #b8e0cb;
}

.alert-error {
  background: #fdf0ef;
  color: var(--color-danger);
  border: 1px solid #f5c6c5;
}

.alert-warning {
  background: #fdf6e3;
  color: var(--color-warning);
  border: 1px solid #f5e0a0;
}

.alert-info {
  background: #eaf3fb;
  color: var(--color-info);
  border: 1px solid #b3d4ee;
}

/* ========================================
   SPINNER
======================================== */
.spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: currentColor;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

.spinner-dark {
  border-color: rgba(10,22,40,0.2);
  border-top-color: var(--color-primary);
}

.spinner-sm {
  width: 14px;
  height: 14px;
  border-width: 2px;
}

.spinner-lg {
  width: 32px;
  height: 32px;
  border-width: 3px;
}

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

/* Spinner centrado en pantalla */
.spinner-overlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(249,248,245,0.8);
  z-index: 9999;
}