/* ============================================================
   RoyalAlert — Buttons
   ============================================================ */

.royal-alert-btn {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    padding: .75rem 1.75rem;
    font-size: 1rem;
    font-weight: 600;
    font-family: var(--ra-font);
    border: none;
    border-radius: var(--ra-radius-btn);
    cursor: pointer;
    white-space: nowrap;
    transition: transform     var(--ra-duration-fast) var(--ra-ease),
                box-shadow    var(--ra-duration-fast) var(--ra-ease-out),
                filter        var(--ra-duration-fast) var(--ra-ease-out),
                opacity       var(--ra-duration-fast) var(--ra-ease-out),
                background    var(--ra-duration-fast) var(--ra-ease-out);
}

.royal-alert-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px -4px rgba(0,0,0,.2);
}

.royal-alert-btn:active:not(:disabled) {
    transform: translateY(0);
    box-shadow: none;
}

.royal-alert-btn:focus-visible {
    outline: 3px solid var(--ra-primary-light);
    outline-offset: 3px;
}

.royal-alert-btn:disabled,
.royal-alert-btn-loading {
    opacity: .6;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

/* ── Variants ─────────────────────────────────────────────── */
.royal-alert-btn-confirm,
.royal-alert-btn-primary {
    background: linear-gradient(135deg, var(--ra-primary), var(--ra-primary-dark));
    color: #fff;
    box-shadow: 0 4px 14px -4px rgba(99,102,241,.5);
}

.royal-alert-btn-cancel,
.royal-alert-btn-secondary {
    background: var(--ra-bg-subtle);
    color: var(--ra-text-muted);
    border: 1.5px solid var(--ra-border);
}
.royal-alert-btn-cancel:hover:not(:disabled),
.royal-alert-btn-secondary:hover:not(:disabled) {
    background: var(--ra-border);
    box-shadow: 0 4px 12px -4px rgba(0,0,0,.08);
}

.royal-alert-btn-danger {
    background: linear-gradient(135deg, var(--ra-error), #c53030);
    color: #fff;
    box-shadow: 0 4px 14px -4px rgba(239,68,68,.45);
}

.royal-alert-btn-success {
    background: linear-gradient(135deg, var(--ra-success), #0d9488);
    color: #fff;
    box-shadow: 0 4px 14px -4px rgba(16,185,129,.45);
}

.royal-alert-btn-warning {
    background: linear-gradient(135deg, var(--ra-warning), #d97706);
    color: #fff;
    box-shadow: 0 4px 14px -4px rgba(245,158,11,.4);
}

.royal-alert-btn-info {
    background: linear-gradient(135deg, var(--ra-info), #0284c7);
    color: #fff;
    box-shadow: 0 4px 14px -4px rgba(14,165,233,.4);
}