/* Componentes reutilizables · botones, cards, loader.
   Pendiente: ajustar estilos exactos cuando lleguen snippets WPCode. */

/* === Botones === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: 0.875rem 1.75rem;
    font-weight: 600;
    font-size: var(--fs-sm);
    line-height: 1;
    text-align: center;
    border-radius: var(--radius-pill);
    cursor: pointer;
    transition: transform var(--t-fast), background var(--t-base), color var(--t-base);
    will-change: transform;
}
.btn:active { transform: scale(0.97); }

.btn--primary {
    background: var(--zander-yellow);
    color: var(--zander-black);
}
.btn--primary:hover { background: #FFD43F; }

.btn--dark {
    background: var(--zander-black);
    color: var(--zander-yellow);
}
.btn--dark:hover { background: #2a2a26; }

.btn--ghost {
    background: transparent;
    color: var(--zander-black);
    border: 1px solid var(--zander-black);
}
.btn--ghost:hover { background: var(--zander-black); color: var(--zander-yellow); }

/* === Card base === */
.card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    box-shadow: var(--shadow-sm);
    transition: transform var(--t-base), box-shadow var(--t-base);
}
.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

/* === Loader/preloader (placeholder, sustituir por el real cuando llegue) === */
.zw-loader {
    position: fixed;
    inset: 0;
    z-index: var(--z-loader);
    background: var(--zander-black);
    display: grid;
    place-items: center;
    transition: opacity 400ms ease, visibility 400ms ease;
}
.zw-loader[hidden] {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}
.zw-loader__spinner {
    width: 48px;
    height: 48px;
    border: 3px solid rgba(252, 198, 28, 0.2);
    border-top-color: var(--zander-yellow);
    border-radius: 50%;
    animation: zw-spin 800ms linear infinite;
}

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

/* === Skip link accesibilidad === */
.skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    background: var(--zander-black);
    color: var(--zander-yellow);
    padding: var(--space-3) var(--space-6);
    z-index: 99999;
}
.skip-link:focus {
    left: var(--space-4);
    top: var(--space-4);
}

/* === Visually hidden (a11y) === */
.sr-only {
    position: absolute;
    width: 1px; height: 1px;
    padding: 0; margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}